5996 lines
214 KiB
C
5996 lines
214 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* This file contains work-arounds for many known PCI hardware bugs.
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* Devices present only on certain architectures (host bridges et cetera)
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* should be handled in arch-specific code.
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*
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* Note: any quirks for hotpluggable devices must _NOT_ be declared __init.
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*
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* Copyright (c) 1999 Martin Mares <mj@ucw.cz>
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*
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* Init/reset quirks for USB host controllers should be in the USB quirks
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* file, where their drivers can use them.
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*/
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#include <linux/bitfield.h>
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/export.h>
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/acpi.h>
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#include <linux/dmi.h>
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#include <linux/ioport.h>
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#include <linux/sched.h>
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#include <linux/ktime.h>
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#include <linux/mm.h>
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#include <linux/nvme.h>
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#include <linux/platform_data/x86/apple.h>
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#include <linux/pm_runtime.h>
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#include <linux/suspend.h>
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#include <linux/switchtec.h>
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#include <asm/dma.h> /* isa_dma_bridge_buggy */
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#include "pci.h"
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static ktime_t fixup_debug_start(struct pci_dev *dev,
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void (*fn)(struct pci_dev *dev))
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{
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if (initcall_debug)
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pci_info(dev, "calling %pS @ %i\n", fn, task_pid_nr(current));
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return ktime_get();
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}
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static void fixup_debug_report(struct pci_dev *dev, ktime_t calltime,
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void (*fn)(struct pci_dev *dev))
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{
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ktime_t delta, rettime;
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unsigned long long duration;
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rettime = ktime_get();
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delta = ktime_sub(rettime, calltime);
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duration = (unsigned long long) ktime_to_ns(delta) >> 10;
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if (initcall_debug || duration > 10000)
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pci_info(dev, "%pS took %lld usecs\n", fn, duration);
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}
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static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
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struct pci_fixup *end)
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{
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ktime_t calltime;
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for (; f < end; f++)
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if ((f->class == (u32) (dev->class >> f->class_shift) ||
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f->class == (u32) PCI_ANY_ID) &&
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(f->vendor == dev->vendor ||
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f->vendor == (u16) PCI_ANY_ID) &&
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(f->device == dev->device ||
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f->device == (u16) PCI_ANY_ID)) {
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void (*hook)(struct pci_dev *dev);
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#ifdef CONFIG_HAVE_ARCH_PREL32_RELOCATIONS
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hook = offset_to_ptr(&f->hook_offset);
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#else
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hook = f->hook;
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#endif
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calltime = fixup_debug_start(dev, hook);
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hook(dev);
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fixup_debug_report(dev, calltime, hook);
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}
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}
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extern struct pci_fixup __start_pci_fixups_early[];
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extern struct pci_fixup __end_pci_fixups_early[];
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extern struct pci_fixup __start_pci_fixups_header[];
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extern struct pci_fixup __end_pci_fixups_header[];
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extern struct pci_fixup __start_pci_fixups_final[];
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extern struct pci_fixup __end_pci_fixups_final[];
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extern struct pci_fixup __start_pci_fixups_enable[];
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extern struct pci_fixup __end_pci_fixups_enable[];
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extern struct pci_fixup __start_pci_fixups_resume[];
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extern struct pci_fixup __end_pci_fixups_resume[];
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extern struct pci_fixup __start_pci_fixups_resume_early[];
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extern struct pci_fixup __end_pci_fixups_resume_early[];
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extern struct pci_fixup __start_pci_fixups_suspend[];
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extern struct pci_fixup __end_pci_fixups_suspend[];
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extern struct pci_fixup __start_pci_fixups_suspend_late[];
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extern struct pci_fixup __end_pci_fixups_suspend_late[];
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static bool pci_apply_fixup_final_quirks;
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void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
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{
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struct pci_fixup *start, *end;
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switch (pass) {
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case pci_fixup_early:
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start = __start_pci_fixups_early;
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end = __end_pci_fixups_early;
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break;
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case pci_fixup_header:
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start = __start_pci_fixups_header;
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end = __end_pci_fixups_header;
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break;
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case pci_fixup_final:
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if (!pci_apply_fixup_final_quirks)
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return;
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start = __start_pci_fixups_final;
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end = __end_pci_fixups_final;
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break;
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case pci_fixup_enable:
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start = __start_pci_fixups_enable;
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end = __end_pci_fixups_enable;
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break;
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case pci_fixup_resume:
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start = __start_pci_fixups_resume;
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end = __end_pci_fixups_resume;
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break;
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case pci_fixup_resume_early:
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start = __start_pci_fixups_resume_early;
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end = __end_pci_fixups_resume_early;
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break;
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case pci_fixup_suspend:
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start = __start_pci_fixups_suspend;
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end = __end_pci_fixups_suspend;
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break;
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case pci_fixup_suspend_late:
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start = __start_pci_fixups_suspend_late;
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end = __end_pci_fixups_suspend_late;
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break;
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default:
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/* stupid compiler warning, you would think with an enum... */
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return;
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}
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pci_do_fixups(dev, start, end);
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}
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EXPORT_SYMBOL(pci_fixup_device);
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static int __init pci_apply_final_quirks(void)
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{
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struct pci_dev *dev = NULL;
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u8 cls = 0;
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u8 tmp;
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if (pci_cache_line_size)
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pr_info("PCI: CLS %u bytes\n", pci_cache_line_size << 2);
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pci_apply_fixup_final_quirks = true;
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for_each_pci_dev(dev) {
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pci_fixup_device(pci_fixup_final, dev);
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/*
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* If arch hasn't set it explicitly yet, use the CLS
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* value shared by all PCI devices. If there's a
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* mismatch, fall back to the default value.
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*/
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if (!pci_cache_line_size) {
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pci_read_config_byte(dev, PCI_CACHE_LINE_SIZE, &tmp);
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if (!cls)
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cls = tmp;
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if (!tmp || cls == tmp)
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continue;
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pci_info(dev, "CLS mismatch (%u != %u), using %u bytes\n",
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cls << 2, tmp << 2,
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pci_dfl_cache_line_size << 2);
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pci_cache_line_size = pci_dfl_cache_line_size;
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}
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}
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if (!pci_cache_line_size) {
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pr_info("PCI: CLS %u bytes, default %u\n", cls << 2,
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pci_dfl_cache_line_size << 2);
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pci_cache_line_size = cls ? cls : pci_dfl_cache_line_size;
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}
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return 0;
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}
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fs_initcall_sync(pci_apply_final_quirks);
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/*
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* Decoding should be disabled for a PCI device during BAR sizing to avoid
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* conflict. But doing so may cause problems on host bridge and perhaps other
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* key system devices. For devices that need to have mmio decoding always-on,
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* we need to set the dev->mmio_always_on bit.
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*/
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static void quirk_mmio_always_on(struct pci_dev *dev)
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{
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dev->mmio_always_on = 1;
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}
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DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_ANY_ID, PCI_ANY_ID,
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PCI_CLASS_BRIDGE_HOST, 8, quirk_mmio_always_on);
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/*
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* The Mellanox Tavor device gives false positive parity errors. Disable
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* parity error reporting.
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*/
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR, pci_disable_parity);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE, pci_disable_parity);
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/*
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* Deal with broken BIOSes that neglect to enable passive release,
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* which can cause problems in combination with the 82441FX/PPro MTRRs
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*/
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static void quirk_passive_release(struct pci_dev *dev)
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{
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struct pci_dev *d = NULL;
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unsigned char dlc;
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/*
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* We have to make sure a particular bit is set in the PIIX3
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* ISA bridge, so we have to go out and find it.
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*/
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while ((d = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, d))) {
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pci_read_config_byte(d, 0x82, &dlc);
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if (!(dlc & 1<<1)) {
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pci_info(d, "PIIX3: Enabling Passive Release\n");
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dlc |= 1<<1;
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pci_write_config_byte(d, 0x82, dlc);
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}
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}
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
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DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
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/*
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* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a
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* workaround but VIA don't answer queries. If you happen to have good
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* contacts at VIA ask them for me please -- Alan
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*
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* This appears to be BIOS not version dependent. So presumably there is a
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* chipset level fix.
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*/
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static void quirk_isa_dma_hangs(struct pci_dev *dev)
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{
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if (!isa_dma_bridge_buggy) {
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isa_dma_bridge_buggy = 1;
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pci_info(dev, "Activating ISA DMA hang workarounds\n");
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}
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}
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/*
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* It's not totally clear which chipsets are the problematic ones. We know
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* 82C586 and 82C596 variants are affected.
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*/
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs);
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/*
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* Intel NM10 "TigerPoint" LPC PM1a_STS.BM_STS must be clear
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* for some HT machines to use C4 w/o hanging.
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*/
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static void quirk_tigerpoint_bm_sts(struct pci_dev *dev)
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{
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u32 pmbase;
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u16 pm1a;
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pci_read_config_dword(dev, 0x40, &pmbase);
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pmbase = pmbase & 0xff80;
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pm1a = inw(pmbase);
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if (pm1a & 0x10) {
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pci_info(dev, FW_BUG "TigerPoint LPC.BM_STS cleared\n");
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outw(0x10, pmbase);
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}
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}
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TGP_LPC, quirk_tigerpoint_bm_sts);
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/* Chipsets where PCI->PCI transfers vanish or hang */
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static void quirk_nopcipci(struct pci_dev *dev)
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{
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if ((pci_pci_problems & PCIPCI_FAIL) == 0) {
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pci_info(dev, "Disabling direct PCI/PCI transfers\n");
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pci_pci_problems |= PCIPCI_FAIL;
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}
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci);
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static void quirk_nopciamd(struct pci_dev *dev)
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{
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u8 rev;
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pci_read_config_byte(dev, 0x08, &rev);
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if (rev == 0x13) {
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/* Erratum 24 */
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pci_info(dev, "Chipset erratum: Disabling direct PCI/AGP transfers\n");
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pci_pci_problems |= PCIAGP_FAIL;
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}
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd);
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/* Triton requires workarounds to be used by the drivers */
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static void quirk_triton(struct pci_dev *dev)
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{
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if ((pci_pci_problems&PCIPCI_TRITON) == 0) {
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pci_info(dev, "Limiting direct PCI/PCI transfers\n");
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pci_pci_problems |= PCIPCI_TRITON;
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}
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton);
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/*
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* VIA Apollo KT133 needs PCI latency patch
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* Made according to a Windows driver-based patch by George E. Breese;
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* see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm
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* Also see http://www.au-ja.org/review-kt133a-1-en.phtml for the info on
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* which Mr Breese based his work.
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*
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* Updated based on further information from the site and also on
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* information provided by VIA
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*/
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static void quirk_vialatency(struct pci_dev *dev)
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{
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struct pci_dev *p;
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u8 busarb;
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/*
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* Ok, we have a potential problem chipset here. Now see if we have
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* a buggy southbridge.
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*/
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p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL);
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if (p != NULL) {
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/*
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* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A;
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* thanks Dan Hollis.
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* Check for buggy part revisions
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*/
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if (p->revision < 0x40 || p->revision > 0x42)
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goto exit;
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} else {
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p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL);
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if (p == NULL) /* No problem parts */
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goto exit;
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/* Check for buggy part revisions */
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if (p->revision < 0x10 || p->revision > 0x12)
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goto exit;
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}
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/*
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* Ok we have the problem. Now set the PCI master grant to occur
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* every master grant. The apparent bug is that under high PCI load
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* (quite common in Linux of course) you can get data loss when the
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* CPU is held off the bus for 3 bus master requests. This happens
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* to include the IDE controllers....
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*
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* VIA only apply this fix when an SB Live! is present but under
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* both Linux and Windows this isn't enough, and we have seen
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* corruption without SB Live! but with things like 3 UDMA IDE
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* controllers. So we ignore that bit of the VIA recommendation..
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*/
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pci_read_config_byte(dev, 0x76, &busarb);
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/*
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* Set bit 4 and bit 5 of byte 76 to 0x01
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* "Master priority rotation on every PCI master grant"
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*/
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busarb &= ~(1<<5);
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busarb |= (1<<4);
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pci_write_config_byte(dev, 0x76, busarb);
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pci_info(dev, "Applying VIA southbridge workaround\n");
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exit:
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pci_dev_put(p);
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
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/* Must restore this on a resume from RAM */
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DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
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DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
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DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
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/* VIA Apollo VP3 needs ETBF on BT848/878 */
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static void quirk_viaetbf(struct pci_dev *dev)
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{
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if ((pci_pci_problems&PCIPCI_VIAETBF) == 0) {
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pci_info(dev, "Limiting direct PCI/PCI transfers\n");
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pci_pci_problems |= PCIPCI_VIAETBF;
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}
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf);
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static void quirk_vsfx(struct pci_dev *dev)
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{
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if ((pci_pci_problems&PCIPCI_VSFX) == 0) {
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pci_info(dev, "Limiting direct PCI/PCI transfers\n");
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pci_pci_problems |= PCIPCI_VSFX;
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}
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx);
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|
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/*
|
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* ALi Magik requires workarounds to be used by the drivers that DMA to AGP
|
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* space. Latency must be set to 0xA and Triton workaround applied too.
|
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* [Info kindly provided by ALi]
|
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*/
|
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static void quirk_alimagik(struct pci_dev *dev)
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{
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if ((pci_pci_problems&PCIPCI_ALIMAGIK) == 0) {
|
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pci_info(dev, "Limiting direct PCI/PCI transfers\n");
|
|
pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik);
|
|
|
|
/* Natoma has some interesting boundary conditions with Zoran stuff at least */
|
|
static void quirk_natoma(struct pci_dev *dev)
|
|
{
|
|
if ((pci_pci_problems&PCIPCI_NATOMA) == 0) {
|
|
pci_info(dev, "Limiting direct PCI/PCI transfers\n");
|
|
pci_pci_problems |= PCIPCI_NATOMA;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma);
|
|
|
|
/*
|
|
* This chip can cause PCI parity errors if config register 0xA0 is read
|
|
* while DMAs are occurring.
|
|
*/
|
|
static void quirk_citrine(struct pci_dev *dev)
|
|
{
|
|
dev->cfg_size = 0xA0;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine);
|
|
|
|
/*
|
|
* This chip can cause bus lockups if config addresses above 0x600
|
|
* are read or written.
|
|
*/
|
|
static void quirk_nfp6000(struct pci_dev *dev)
|
|
{
|
|
dev->cfg_size = 0x600;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP4000, quirk_nfp6000);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP6000, quirk_nfp6000);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP5000, quirk_nfp6000);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP6000_VF, quirk_nfp6000);
|
|
|
|
/* On IBM Crocodile ipr SAS adapters, expand BAR to system page size */
|
|
static void quirk_extend_bar_to_page(struct pci_dev *dev)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < PCI_STD_NUM_BARS; i++) {
|
|
struct resource *r = &dev->resource[i];
|
|
|
|
if (r->flags & IORESOURCE_MEM && resource_size(r) < PAGE_SIZE) {
|
|
r->end = PAGE_SIZE - 1;
|
|
r->start = 0;
|
|
r->flags |= IORESOURCE_UNSET;
|
|
pci_info(dev, "expanded BAR %d to page size: %pR\n",
|
|
i, r);
|
|
}
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, 0x034a, quirk_extend_bar_to_page);
|
|
|
|
/*
|
|
* S3 868 and 968 chips report region size equal to 32M, but they decode 64M.
|
|
* If it's needed, re-allocate the region.
|
|
*/
|
|
static void quirk_s3_64M(struct pci_dev *dev)
|
|
{
|
|
struct resource *r = &dev->resource[0];
|
|
|
|
if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) {
|
|
r->flags |= IORESOURCE_UNSET;
|
|
r->start = 0;
|
|
r->end = 0x3ffffff;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_868, quirk_s3_64M);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M);
|
|
|
|
static void quirk_io(struct pci_dev *dev, int pos, unsigned size,
|
|
const char *name)
|
|
{
|
|
u32 region;
|
|
struct pci_bus_region bus_region;
|
|
struct resource *res = dev->resource + pos;
|
|
|
|
pci_read_config_dword(dev, PCI_BASE_ADDRESS_0 + (pos << 2), ®ion);
|
|
|
|
if (!region)
|
|
return;
|
|
|
|
res->name = pci_name(dev);
|
|
res->flags = region & ~PCI_BASE_ADDRESS_IO_MASK;
|
|
res->flags |=
|
|
(IORESOURCE_IO | IORESOURCE_PCI_FIXED | IORESOURCE_SIZEALIGN);
|
|
region &= ~(size - 1);
|
|
|
|
/* Convert from PCI bus to resource space */
|
|
bus_region.start = region;
|
|
bus_region.end = region + size - 1;
|
|
pcibios_bus_to_resource(dev->bus, res, &bus_region);
|
|
|
|
pci_info(dev, FW_BUG "%s quirk: reg 0x%x: %pR\n",
|
|
name, PCI_BASE_ADDRESS_0 + (pos << 2), res);
|
|
}
|
|
|
|
/*
|
|
* Some CS5536 BIOSes (for example, the Soekris NET5501 board w/ comBIOS
|
|
* ver. 1.33 20070103) don't set the correct ISA PCI region header info.
|
|
* BAR0 should be 8 bytes; instead, it may be set to something like 8k
|
|
* (which conflicts w/ BAR1's memory range).
|
|
*
|
|
* CS553x's ISA PCI BARs may also be read-only (ref:
|
|
* https://bugzilla.kernel.org/show_bug.cgi?id=85991 - Comment #4 forward).
|
|
*/
|
|
static void quirk_cs5536_vsa(struct pci_dev *dev)
|
|
{
|
|
static char *name = "CS5536 ISA bridge";
|
|
|
|
if (pci_resource_len(dev, 0) != 8) {
|
|
quirk_io(dev, 0, 8, name); /* SMB */
|
|
quirk_io(dev, 1, 256, name); /* GPIO */
|
|
quirk_io(dev, 2, 64, name); /* MFGPT */
|
|
pci_info(dev, "%s bug detected (incorrect header); workaround applied\n",
|
|
name);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, quirk_cs5536_vsa);
|
|
|
|
static void quirk_io_region(struct pci_dev *dev, int port,
|
|
unsigned size, int nr, const char *name)
|
|
{
|
|
u16 region;
|
|
struct pci_bus_region bus_region;
|
|
struct resource *res = dev->resource + nr;
|
|
|
|
pci_read_config_word(dev, port, ®ion);
|
|
region &= ~(size - 1);
|
|
|
|
if (!region)
|
|
return;
|
|
|
|
res->name = pci_name(dev);
|
|
res->flags = IORESOURCE_IO;
|
|
|
|
/* Convert from PCI bus to resource space */
|
|
bus_region.start = region;
|
|
bus_region.end = region + size - 1;
|
|
pcibios_bus_to_resource(dev->bus, res, &bus_region);
|
|
|
|
if (!pci_claim_resource(dev, nr))
|
|
pci_info(dev, "quirk: %pR claimed by %s\n", res, name);
|
|
}
|
|
|
|
/*
|
|
* ATI Northbridge setups MCE the processor if you even read somewhere
|
|
* between 0x3b0->0x3bb or read 0x3d3
|
|
*/
|
|
static void quirk_ati_exploding_mce(struct pci_dev *dev)
|
|
{
|
|
pci_info(dev, "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb\n");
|
|
/* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */
|
|
request_region(0x3b0, 0x0C, "RadeonIGP");
|
|
request_region(0x3d3, 0x01, "RadeonIGP");
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce);
|
|
|
|
/*
|
|
* In the AMD NL platform, this device ([1022:7912]) has a class code of
|
|
* PCI_CLASS_SERIAL_USB_XHCI (0x0c0330), which means the xhci driver will
|
|
* claim it. The same applies on the VanGogh platform device ([1022:163a]).
|
|
*
|
|
* But the dwc3 driver is a more specific driver for this device, and we'd
|
|
* prefer to use it instead of xhci. To prevent xhci from claiming the
|
|
* device, change the class code to 0x0c03fe, which the PCI r3.0 spec
|
|
* defines as "USB device (not host controller)". The dwc3 driver can then
|
|
* claim it based on its Vendor and Device ID.
|
|
*/
|
|
static void quirk_amd_dwc_class(struct pci_dev *pdev)
|
|
{
|
|
u32 class = pdev->class;
|
|
|
|
if (class != PCI_CLASS_SERIAL_USB_DEVICE) {
|
|
/* Use "USB Device (not host controller)" class */
|
|
pdev->class = PCI_CLASS_SERIAL_USB_DEVICE;
|
|
pci_info(pdev,
|
|
"PCI class overridden (%#08x -> %#08x) so dwc3 driver can claim this instead of xhci\n",
|
|
class, pdev->class);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB,
|
|
quirk_amd_dwc_class);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VANGOGH_USB,
|
|
quirk_amd_dwc_class);
|
|
|
|
/*
|
|
* Synopsys USB 3.x host HAPS platform has a class code of
|
|
* PCI_CLASS_SERIAL_USB_XHCI, and xhci driver can claim it. However, these
|
|
* devices should use dwc3-haps driver. Change these devices' class code to
|
|
* PCI_CLASS_SERIAL_USB_DEVICE to prevent the xhci-pci driver from claiming
|
|
* them.
|
|
*/
|
|
static void quirk_synopsys_haps(struct pci_dev *pdev)
|
|
{
|
|
u32 class = pdev->class;
|
|
|
|
switch (pdev->device) {
|
|
case PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3:
|
|
case PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI:
|
|
case PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31:
|
|
pdev->class = PCI_CLASS_SERIAL_USB_DEVICE;
|
|
pci_info(pdev, "PCI class overridden (%#08x -> %#08x) so dwc3 driver can claim this instead of xhci\n",
|
|
class, pdev->class);
|
|
break;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_SYNOPSYS, PCI_ANY_ID,
|
|
PCI_CLASS_SERIAL_USB_XHCI, 0,
|
|
quirk_synopsys_haps);
|
|
|
|
/*
|
|
* Let's make the southbridge information explicit instead of having to
|
|
* worry about people probing the ACPI areas, for example.. (Yes, it
|
|
* happens, and if you read the wrong ACPI register it will put the machine
|
|
* to sleep with no way of waking it up again. Bummer).
|
|
*
|
|
* ALI M7101: Two IO regions pointed to by words at
|
|
* 0xE0 (64 bytes of ACPI registers)
|
|
* 0xE2 (32 bytes of SMB registers)
|
|
*/
|
|
static void quirk_ali7101_acpi(struct pci_dev *dev)
|
|
{
|
|
quirk_io_region(dev, 0xE0, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
|
|
quirk_io_region(dev, 0xE2, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi);
|
|
|
|
static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
|
|
{
|
|
u32 devres;
|
|
u32 mask, size, base;
|
|
|
|
pci_read_config_dword(dev, port, &devres);
|
|
if ((devres & enable) != enable)
|
|
return;
|
|
mask = (devres >> 16) & 15;
|
|
base = devres & 0xffff;
|
|
size = 16;
|
|
for (;;) {
|
|
unsigned bit = size >> 1;
|
|
if ((bit & mask) == bit)
|
|
break;
|
|
size = bit;
|
|
}
|
|
/*
|
|
* For now we only print it out. Eventually we'll want to
|
|
* reserve it (at least if it's in the 0x1000+ range), but
|
|
* let's get enough confirmation reports first.
|
|
*/
|
|
base &= -size;
|
|
pci_info(dev, "%s PIO at %04x-%04x\n", name, base, base + size - 1);
|
|
}
|
|
|
|
static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
|
|
{
|
|
u32 devres;
|
|
u32 mask, size, base;
|
|
|
|
pci_read_config_dword(dev, port, &devres);
|
|
if ((devres & enable) != enable)
|
|
return;
|
|
base = devres & 0xffff0000;
|
|
mask = (devres & 0x3f) << 16;
|
|
size = 128 << 16;
|
|
for (;;) {
|
|
unsigned bit = size >> 1;
|
|
if ((bit & mask) == bit)
|
|
break;
|
|
size = bit;
|
|
}
|
|
|
|
/*
|
|
* For now we only print it out. Eventually we'll want to
|
|
* reserve it, but let's get enough confirmation reports first.
|
|
*/
|
|
base &= -size;
|
|
pci_info(dev, "%s MMIO at %04x-%04x\n", name, base, base + size - 1);
|
|
}
|
|
|
|
/*
|
|
* PIIX4 ACPI: Two IO regions pointed to by longwords at
|
|
* 0x40 (64 bytes of ACPI registers)
|
|
* 0x90 (16 bytes of SMB registers)
|
|
* and a few strange programmable PIIX4 device resources.
|
|
*/
|
|
static void quirk_piix4_acpi(struct pci_dev *dev)
|
|
{
|
|
u32 res_a;
|
|
|
|
quirk_io_region(dev, 0x40, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
|
|
quirk_io_region(dev, 0x90, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
|
|
|
|
/* Device resource A has enables for some of the other ones */
|
|
pci_read_config_dword(dev, 0x5c, &res_a);
|
|
|
|
piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21);
|
|
piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21);
|
|
|
|
/* Device resource D is just bitfields for static resources */
|
|
|
|
/* Device 12 enabled? */
|
|
if (res_a & (1 << 29)) {
|
|
piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20);
|
|
piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7);
|
|
}
|
|
/* Device 13 enabled? */
|
|
if (res_a & (1 << 30)) {
|
|
piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20);
|
|
piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7);
|
|
}
|
|
piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20);
|
|
piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20);
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi);
|
|
|
|
#define ICH_PMBASE 0x40
|
|
#define ICH_ACPI_CNTL 0x44
|
|
#define ICH4_ACPI_EN 0x10
|
|
#define ICH6_ACPI_EN 0x80
|
|
#define ICH4_GPIOBASE 0x58
|
|
#define ICH4_GPIO_CNTL 0x5c
|
|
#define ICH4_GPIO_EN 0x10
|
|
#define ICH6_GPIOBASE 0x48
|
|
#define ICH6_GPIO_CNTL 0x4c
|
|
#define ICH6_GPIO_EN 0x10
|
|
|
|
/*
|
|
* ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at
|
|
* 0x40 (128 bytes of ACPI, GPIO & TCO registers)
|
|
* 0x58 (64 bytes of GPIO I/O space)
|
|
*/
|
|
static void quirk_ich4_lpc_acpi(struct pci_dev *dev)
|
|
{
|
|
u8 enable;
|
|
|
|
/*
|
|
* The check for PCIBIOS_MIN_IO is to ensure we won't create a conflict
|
|
* with low legacy (and fixed) ports. We don't know the decoding
|
|
* priority and can't tell whether the legacy device or the one created
|
|
* here is really at that address. This happens on boards with broken
|
|
* BIOSes.
|
|
*/
|
|
pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable);
|
|
if (enable & ICH4_ACPI_EN)
|
|
quirk_io_region(dev, ICH_PMBASE, 128, PCI_BRIDGE_RESOURCES,
|
|
"ICH4 ACPI/GPIO/TCO");
|
|
|
|
pci_read_config_byte(dev, ICH4_GPIO_CNTL, &enable);
|
|
if (enable & ICH4_GPIO_EN)
|
|
quirk_io_region(dev, ICH4_GPIOBASE, 64, PCI_BRIDGE_RESOURCES+1,
|
|
"ICH4 GPIO");
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi);
|
|
|
|
static void ich6_lpc_acpi_gpio(struct pci_dev *dev)
|
|
{
|
|
u8 enable;
|
|
|
|
pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable);
|
|
if (enable & ICH6_ACPI_EN)
|
|
quirk_io_region(dev, ICH_PMBASE, 128, PCI_BRIDGE_RESOURCES,
|
|
"ICH6 ACPI/GPIO/TCO");
|
|
|
|
pci_read_config_byte(dev, ICH6_GPIO_CNTL, &enable);
|
|
if (enable & ICH6_GPIO_EN)
|
|
quirk_io_region(dev, ICH6_GPIOBASE, 64, PCI_BRIDGE_RESOURCES+1,
|
|
"ICH6 GPIO");
|
|
}
|
|
|
|
static void ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg,
|
|
const char *name, int dynsize)
|
|
{
|
|
u32 val;
|
|
u32 size, base;
|
|
|
|
pci_read_config_dword(dev, reg, &val);
|
|
|
|
/* Enabled? */
|
|
if (!(val & 1))
|
|
return;
|
|
base = val & 0xfffc;
|
|
if (dynsize) {
|
|
/*
|
|
* This is not correct. It is 16, 32 or 64 bytes depending on
|
|
* register D31:F0:ADh bits 5:4.
|
|
*
|
|
* But this gets us at least _part_ of it.
|
|
*/
|
|
size = 16;
|
|
} else {
|
|
size = 128;
|
|
}
|
|
base &= ~(size-1);
|
|
|
|
/*
|
|
* Just print it out for now. We should reserve it after more
|
|
* debugging.
|
|
*/
|
|
pci_info(dev, "%s PIO at %04x-%04x\n", name, base, base+size-1);
|
|
}
|
|
|
|
static void quirk_ich6_lpc(struct pci_dev *dev)
|
|
{
|
|
/* Shared ACPI/GPIO decode with all ICH6+ */
|
|
ich6_lpc_acpi_gpio(dev);
|
|
|
|
/* ICH6-specific generic IO decode */
|
|
ich6_lpc_generic_decode(dev, 0x84, "LPC Generic IO decode 1", 0);
|
|
ich6_lpc_generic_decode(dev, 0x88, "LPC Generic IO decode 2", 1);
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc);
|
|
|
|
static void ich7_lpc_generic_decode(struct pci_dev *dev, unsigned reg,
|
|
const char *name)
|
|
{
|
|
u32 val;
|
|
u32 mask, base;
|
|
|
|
pci_read_config_dword(dev, reg, &val);
|
|
|
|
/* Enabled? */
|
|
if (!(val & 1))
|
|
return;
|
|
|
|
/* IO base in bits 15:2, mask in bits 23:18, both are dword-based */
|
|
base = val & 0xfffc;
|
|
mask = (val >> 16) & 0xfc;
|
|
mask |= 3;
|
|
|
|
/*
|
|
* Just print it out for now. We should reserve it after more
|
|
* debugging.
|
|
*/
|
|
pci_info(dev, "%s PIO at %04x (mask %04x)\n", name, base, mask);
|
|
}
|
|
|
|
/* ICH7-10 has the same common LPC generic IO decode registers */
|
|
static void quirk_ich7_lpc(struct pci_dev *dev)
|
|
{
|
|
/* We share the common ACPI/GPIO decode with ICH6 */
|
|
ich6_lpc_acpi_gpio(dev);
|
|
|
|
/* And have 4 ICH7+ generic decodes */
|
|
ich7_lpc_generic_decode(dev, 0x84, "ICH7 LPC Generic IO decode 1");
|
|
ich7_lpc_generic_decode(dev, 0x88, "ICH7 LPC Generic IO decode 2");
|
|
ich7_lpc_generic_decode(dev, 0x8c, "ICH7 LPC Generic IO decode 3");
|
|
ich7_lpc_generic_decode(dev, 0x90, "ICH7 LPC Generic IO decode 4");
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich7_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich7_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich7_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich7_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich7_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich7_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1, quirk_ich7_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_4, quirk_ich7_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_2, quirk_ich7_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_4, quirk_ich7_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7, quirk_ich7_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_8, quirk_ich7_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_1, quirk_ich7_lpc);
|
|
|
|
/*
|
|
* VIA ACPI: One IO region pointed to by longword at
|
|
* 0x48 or 0x20 (256 bytes of ACPI registers)
|
|
*/
|
|
static void quirk_vt82c586_acpi(struct pci_dev *dev)
|
|
{
|
|
if (dev->revision & 0x10)
|
|
quirk_io_region(dev, 0x48, 256, PCI_BRIDGE_RESOURCES,
|
|
"vt82c586 ACPI");
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi);
|
|
|
|
/*
|
|
* VIA VT82C686 ACPI: Three IO region pointed to by (long)words at
|
|
* 0x48 (256 bytes of ACPI registers)
|
|
* 0x70 (128 bytes of hardware monitoring register)
|
|
* 0x90 (16 bytes of SMB registers)
|
|
*/
|
|
static void quirk_vt82c686_acpi(struct pci_dev *dev)
|
|
{
|
|
quirk_vt82c586_acpi(dev);
|
|
|
|
quirk_io_region(dev, 0x70, 128, PCI_BRIDGE_RESOURCES+1,
|
|
"vt82c686 HW-mon");
|
|
|
|
quirk_io_region(dev, 0x90, 16, PCI_BRIDGE_RESOURCES+2, "vt82c686 SMB");
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi);
|
|
|
|
/*
|
|
* VIA VT8235 ISA Bridge: Two IO regions pointed to by words at
|
|
* 0x88 (128 bytes of power management registers)
|
|
* 0xd0 (16 bytes of SMB registers)
|
|
*/
|
|
static void quirk_vt8235_acpi(struct pci_dev *dev)
|
|
{
|
|
quirk_io_region(dev, 0x88, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
|
|
quirk_io_region(dev, 0xd0, 16, PCI_BRIDGE_RESOURCES+1, "vt8235 SMB");
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi);
|
|
|
|
/*
|
|
* TI XIO2000a PCIe-PCI Bridge erroneously reports it supports fast
|
|
* back-to-back: Disable fast back-to-back on the secondary bus segment
|
|
*/
|
|
static void quirk_xio2000a(struct pci_dev *dev)
|
|
{
|
|
struct pci_dev *pdev;
|
|
u16 command;
|
|
|
|
pci_warn(dev, "TI XIO2000a quirk detected; secondary bus fast back-to-back transfers disabled\n");
|
|
list_for_each_entry(pdev, &dev->subordinate->devices, bus_list) {
|
|
pci_read_config_word(pdev, PCI_COMMAND, &command);
|
|
if (command & PCI_COMMAND_FAST_BACK)
|
|
pci_write_config_word(pdev, PCI_COMMAND, command & ~PCI_COMMAND_FAST_BACK);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XIO2000A,
|
|
quirk_xio2000a);
|
|
|
|
#ifdef CONFIG_X86_IO_APIC
|
|
|
|
#include <asm/io_apic.h>
|
|
|
|
/*
|
|
* VIA 686A/B: If an IO-APIC is active, we need to route all on-chip
|
|
* devices to the external APIC.
|
|
*
|
|
* TODO: When we have device-specific interrupt routers, this code will go
|
|
* away from quirks.
|
|
*/
|
|
static void quirk_via_ioapic(struct pci_dev *dev)
|
|
{
|
|
u8 tmp;
|
|
|
|
if (nr_ioapics < 1)
|
|
tmp = 0; /* nothing routed to external APIC */
|
|
else
|
|
tmp = 0x1f; /* all known bits (4-0) routed to external APIC */
|
|
|
|
pci_info(dev, "%sbling VIA external APIC routing\n",
|
|
tmp == 0 ? "Disa" : "Ena");
|
|
|
|
/* Offset 0x58: External APIC IRQ output control */
|
|
pci_write_config_byte(dev, 0x58, tmp);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
|
|
|
|
/*
|
|
* VIA 8237: Some BIOSes don't set the 'Bypass APIC De-Assert Message' Bit.
|
|
* This leads to doubled level interrupt rates.
|
|
* Set this bit to get rid of cycle wastage.
|
|
* Otherwise uncritical.
|
|
*/
|
|
static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
|
|
{
|
|
u8 misc_control2;
|
|
#define BYPASS_APIC_DEASSERT 8
|
|
|
|
pci_read_config_byte(dev, 0x5B, &misc_control2);
|
|
if (!(misc_control2 & BYPASS_APIC_DEASSERT)) {
|
|
pci_info(dev, "Bypassing VIA 8237 APIC De-Assert Message\n");
|
|
pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
|
|
|
|
/*
|
|
* The AMD IO-APIC can hang the box when an APIC IRQ is masked.
|
|
* We check all revs >= B0 (yet not in the pre production!) as the bug
|
|
* is currently marked NoFix
|
|
*
|
|
* We have multiple reports of hangs with this chipset that went away with
|
|
* noapic specified. For the moment we assume it's the erratum. We may be wrong
|
|
* of course. However the advice is demonstrably good even if so.
|
|
*/
|
|
static void quirk_amd_ioapic(struct pci_dev *dev)
|
|
{
|
|
if (dev->revision >= 0x02) {
|
|
pci_warn(dev, "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n");
|
|
pci_warn(dev, " : booting with the \"noapic\" option\n");
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic);
|
|
#endif /* CONFIG_X86_IO_APIC */
|
|
|
|
#if defined(CONFIG_ARM64) && defined(CONFIG_PCI_ATS)
|
|
|
|
static void quirk_cavium_sriov_rnm_link(struct pci_dev *dev)
|
|
{
|
|
/* Fix for improper SR-IOV configuration on Cavium cn88xx RNM device */
|
|
if (dev->subsystem_device == 0xa118)
|
|
dev->sriov->link = dev->devfn;
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CAVIUM, 0xa018, quirk_cavium_sriov_rnm_link);
|
|
#endif
|
|
|
|
/*
|
|
* Some settings of MMRBC can lead to data corruption so block changes.
|
|
* See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide
|
|
*/
|
|
static void quirk_amd_8131_mmrbc(struct pci_dev *dev)
|
|
{
|
|
if (dev->subordinate && dev->revision <= 0x12) {
|
|
pci_info(dev, "AMD8131 rev %x detected; disabling PCI-X MMRBC\n",
|
|
dev->revision);
|
|
dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MMRBC;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_mmrbc);
|
|
|
|
/*
|
|
* FIXME: it is questionable that quirk_via_acpi() is needed. It shows up
|
|
* as an ISA bridge, and does not support the PCI_INTERRUPT_LINE register
|
|
* at all. Therefore it seems like setting the pci_dev's IRQ to the value
|
|
* of the ACPI SCI interrupt is only done for convenience.
|
|
* -jgarzik
|
|
*/
|
|
static void quirk_via_acpi(struct pci_dev *d)
|
|
{
|
|
u8 irq;
|
|
|
|
/* VIA ACPI device: SCI IRQ line in PCI config byte 0x42 */
|
|
pci_read_config_byte(d, 0x42, &irq);
|
|
irq &= 0xf;
|
|
if (irq && (irq != 2))
|
|
d->irq = irq;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi);
|
|
|
|
/* VIA bridges which have VLink */
|
|
static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18;
|
|
|
|
static void quirk_via_bridge(struct pci_dev *dev)
|
|
{
|
|
/* See what bridge we have and find the device ranges */
|
|
switch (dev->device) {
|
|
case PCI_DEVICE_ID_VIA_82C686:
|
|
/*
|
|
* The VT82C686 is special; it attaches to PCI and can have
|
|
* any device number. All its subdevices are functions of
|
|
* that single device.
|
|
*/
|
|
via_vlink_dev_lo = PCI_SLOT(dev->devfn);
|
|
via_vlink_dev_hi = PCI_SLOT(dev->devfn);
|
|
break;
|
|
case PCI_DEVICE_ID_VIA_8237:
|
|
case PCI_DEVICE_ID_VIA_8237A:
|
|
via_vlink_dev_lo = 15;
|
|
break;
|
|
case PCI_DEVICE_ID_VIA_8235:
|
|
via_vlink_dev_lo = 16;
|
|
break;
|
|
case PCI_DEVICE_ID_VIA_8231:
|
|
case PCI_DEVICE_ID_VIA_8233_0:
|
|
case PCI_DEVICE_ID_VIA_8233A:
|
|
case PCI_DEVICE_ID_VIA_8233C_0:
|
|
via_vlink_dev_lo = 17;
|
|
break;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge);
|
|
|
|
/*
|
|
* quirk_via_vlink - VIA VLink IRQ number update
|
|
* @dev: PCI device
|
|
*
|
|
* If the device we are dealing with is on a PIC IRQ we need to ensure that
|
|
* the IRQ line register which usually is not relevant for PCI cards, is
|
|
* actually written so that interrupts get sent to the right place.
|
|
*
|
|
* We only do this on systems where a VIA south bridge was detected, and
|
|
* only for VIA devices on the motherboard (see quirk_via_bridge above).
|
|
*/
|
|
static void quirk_via_vlink(struct pci_dev *dev)
|
|
{
|
|
u8 irq, new_irq;
|
|
|
|
/* Check if we have VLink at all */
|
|
if (via_vlink_dev_lo == -1)
|
|
return;
|
|
|
|
new_irq = dev->irq;
|
|
|
|
/* Don't quirk interrupts outside the legacy IRQ range */
|
|
if (!new_irq || new_irq > 15)
|
|
return;
|
|
|
|
/* Internal device ? */
|
|
if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi ||
|
|
PCI_SLOT(dev->devfn) < via_vlink_dev_lo)
|
|
return;
|
|
|
|
/*
|
|
* This is an internal VLink device on a PIC interrupt. The BIOS
|
|
* ought to have set this but may not have, so we redo it.
|
|
*/
|
|
pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
|
|
if (new_irq != irq) {
|
|
pci_info(dev, "VIA VLink IRQ fixup, from %d to %d\n",
|
|
irq, new_irq);
|
|
udelay(15); /* unknown if delay really needed */
|
|
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
|
|
|
|
/*
|
|
* VIA VT82C598 has its device ID settable and many BIOSes set it to the ID
|
|
* of VT82C597 for backward compatibility. We need to switch it off to be
|
|
* able to recognize the real type of the chip.
|
|
*/
|
|
static void quirk_vt82c598_id(struct pci_dev *dev)
|
|
{
|
|
pci_write_config_byte(dev, 0xfc, 0);
|
|
pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id);
|
|
|
|
/*
|
|
* CardBus controllers have a legacy base address that enables them to
|
|
* respond as i82365 pcmcia controllers. We don't want them to do this
|
|
* even if the Linux CardBus driver is not loaded, because the Linux i82365
|
|
* driver does not (and should not) handle CardBus.
|
|
*/
|
|
static void quirk_cardbus_legacy(struct pci_dev *dev)
|
|
{
|
|
pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
|
|
}
|
|
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID,
|
|
PCI_CLASS_BRIDGE_CARDBUS, 8, quirk_cardbus_legacy);
|
|
DECLARE_PCI_FIXUP_CLASS_RESUME_EARLY(PCI_ANY_ID, PCI_ANY_ID,
|
|
PCI_CLASS_BRIDGE_CARDBUS, 8, quirk_cardbus_legacy);
|
|
|
|
/*
|
|
* Following the PCI ordering rules is optional on the AMD762. I'm not sure
|
|
* what the designers were smoking but let's not inhale...
|
|
*
|
|
* To be fair to AMD, it follows the spec by default, it's BIOS people who
|
|
* turn it off!
|
|
*/
|
|
static void quirk_amd_ordering(struct pci_dev *dev)
|
|
{
|
|
u32 pcic;
|
|
pci_read_config_dword(dev, 0x4C, &pcic);
|
|
if ((pcic & 6) != 6) {
|
|
pcic |= 6;
|
|
pci_warn(dev, "BIOS failed to enable PCI standards compliance; fixing this error\n");
|
|
pci_write_config_dword(dev, 0x4C, pcic);
|
|
pci_read_config_dword(dev, 0x84, &pcic);
|
|
pcic |= (1 << 23); /* Required in this mode */
|
|
pci_write_config_dword(dev, 0x84, pcic);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
|
|
|
|
/*
|
|
* DreamWorks-provided workaround for Dunord I-3000 problem
|
|
*
|
|
* This card decodes and responds to addresses not apparently assigned to
|
|
* it. We force a larger allocation to ensure that nothing gets put too
|
|
* close to it.
|
|
*/
|
|
static void quirk_dunord(struct pci_dev *dev)
|
|
{
|
|
struct resource *r = &dev->resource[1];
|
|
|
|
r->flags |= IORESOURCE_UNSET;
|
|
r->start = 0;
|
|
r->end = 0xffffff;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord);
|
|
|
|
/*
|
|
* i82380FB mobile docking controller: its PCI-to-PCI bridge is subtractive
|
|
* decoding (transparent), and does indicate this in the ProgIf.
|
|
* Unfortunately, the ProgIf value is wrong - 0x80 instead of 0x01.
|
|
*/
|
|
static void quirk_transparent_bridge(struct pci_dev *dev)
|
|
{
|
|
dev->transparent = 1;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge);
|
|
|
|
/*
|
|
* Common misconfiguration of the MediaGX/Geode PCI master that will reduce
|
|
* PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1 datasheets
|
|
* found at http://www.national.com/analog for info on what these bits do.
|
|
* <christer@weinigel.se>
|
|
*/
|
|
static void quirk_mediagx_master(struct pci_dev *dev)
|
|
{
|
|
u8 reg;
|
|
|
|
pci_read_config_byte(dev, 0x41, ®);
|
|
if (reg & 2) {
|
|
reg &= ~2;
|
|
pci_info(dev, "Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n",
|
|
reg);
|
|
pci_write_config_byte(dev, 0x41, reg);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
|
|
|
|
/*
|
|
* Ensure C0 rev restreaming is off. This is normally done by the BIOS but
|
|
* in the odd case it is not the results are corruption hence the presence
|
|
* of a Linux check.
|
|
*/
|
|
static void quirk_disable_pxb(struct pci_dev *pdev)
|
|
{
|
|
u16 config;
|
|
|
|
if (pdev->revision != 0x04) /* Only C0 requires this */
|
|
return;
|
|
pci_read_config_word(pdev, 0x40, &config);
|
|
if (config & (1<<6)) {
|
|
config &= ~(1<<6);
|
|
pci_write_config_word(pdev, 0x40, config);
|
|
pci_info(pdev, "C0 revision 450NX. Disabling PCI restreaming\n");
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
|
|
|
|
static void quirk_amd_ide_mode(struct pci_dev *pdev)
|
|
{
|
|
/* set SBX00/Hudson-2 SATA in IDE mode to AHCI mode */
|
|
u8 tmp;
|
|
|
|
pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp);
|
|
if (tmp == 0x01) {
|
|
pci_read_config_byte(pdev, 0x40, &tmp);
|
|
pci_write_config_byte(pdev, 0x40, tmp|1);
|
|
pci_write_config_byte(pdev, 0x9, 1);
|
|
pci_write_config_byte(pdev, 0xa, 6);
|
|
pci_write_config_byte(pdev, 0x40, tmp);
|
|
|
|
pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
|
|
pci_info(pdev, "set SATA to AHCI mode\n");
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x7900, quirk_amd_ide_mode);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, 0x7900, quirk_amd_ide_mode);
|
|
|
|
/* Serverworks CSB5 IDE does not fully support native mode */
|
|
static void quirk_svwks_csb5ide(struct pci_dev *pdev)
|
|
{
|
|
u8 prog;
|
|
pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
|
|
if (prog & 5) {
|
|
prog &= ~5;
|
|
pdev->class &= ~5;
|
|
pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
|
|
/* PCI layer will sort out resources */
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide);
|
|
|
|
/* Intel 82801CAM ICH3-M datasheet says IDE modes must be the same */
|
|
static void quirk_ide_samemode(struct pci_dev *pdev)
|
|
{
|
|
u8 prog;
|
|
|
|
pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
|
|
|
|
if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) {
|
|
pci_info(pdev, "IDE mode mismatch; forcing legacy mode\n");
|
|
prog &= ~5;
|
|
pdev->class &= ~5;
|
|
pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode);
|
|
|
|
/* Some ATA devices break if put into D3 */
|
|
static void quirk_no_ata_d3(struct pci_dev *pdev)
|
|
{
|
|
pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
|
|
}
|
|
/* Quirk the legacy ATA devices only. The AHCI ones are ok */
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID,
|
|
PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID,
|
|
PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
|
|
/* ALi loses some register settings that we cannot then restore */
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID,
|
|
PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
|
|
/* VIA comes back fine but we need to keep it alive or ACPI GTM failures
|
|
occur when mode detecting */
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_VIA, PCI_ANY_ID,
|
|
PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
|
|
|
|
/*
|
|
* This was originally an Alpha-specific thing, but it really fits here.
|
|
* The i82375 PCI/EISA bridge appears as non-classified. Fix that.
|
|
*/
|
|
static void quirk_eisa_bridge(struct pci_dev *dev)
|
|
{
|
|
dev->class = PCI_CLASS_BRIDGE_EISA << 8;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge);
|
|
|
|
/*
|
|
* On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
|
|
* is not activated. The myth is that Asus said that they do not want the
|
|
* users to be irritated by just another PCI Device in the Win98 device
|
|
* manager. (see the file prog/hotplug/README.p4b in the lm_sensors
|
|
* package 2.7.0 for details)
|
|
*
|
|
* The SMBus PCI Device can be activated by setting a bit in the ICH LPC
|
|
* bridge. Unfortunately, this device has no subvendor/subdevice ID. So it
|
|
* becomes necessary to do this tweak in two steps -- the chosen trigger
|
|
* is either the Host bridge (preferred) or on-board VGA controller.
|
|
*
|
|
* Note that we used to unhide the SMBus that way on Toshiba laptops
|
|
* (Satellite A40 and Tecra M2) but then found that the thermal management
|
|
* was done by SMM code, which could cause unsynchronized concurrent
|
|
* accesses to the SMBus registers, with potentially bad effects. Thus you
|
|
* should be very careful when adding new entries: if SMM is accessing the
|
|
* Intel SMBus, this is a very good reason to leave it hidden.
|
|
*
|
|
* Likewise, many recent laptops use ACPI for thermal management. If the
|
|
* ACPI DSDT code accesses the SMBus, then Linux should not access it
|
|
* natively, and keeping the SMBus hidden is the right thing to do. If you
|
|
* are about to add an entry in the table below, please first disassemble
|
|
* the DSDT and double-check that there is no code accessing the SMBus.
|
|
*/
|
|
static int asus_hides_smbus;
|
|
|
|
static void asus_hides_smbus_hostbridge(struct pci_dev *dev)
|
|
{
|
|
if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
|
|
if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB)
|
|
switch (dev->subsystem_device) {
|
|
case 0x8025: /* P4B-LX */
|
|
case 0x8070: /* P4B */
|
|
case 0x8088: /* P4B533 */
|
|
case 0x1626: /* L3C notebook */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB)
|
|
switch (dev->subsystem_device) {
|
|
case 0x80b1: /* P4GE-V */
|
|
case 0x80b2: /* P4PE */
|
|
case 0x8093: /* P4B533-V */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB)
|
|
switch (dev->subsystem_device) {
|
|
case 0x8030: /* P4T533 */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0)
|
|
switch (dev->subsystem_device) {
|
|
case 0x8070: /* P4G8X Deluxe */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH)
|
|
switch (dev->subsystem_device) {
|
|
case 0x80c9: /* PU-DLS */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
|
|
switch (dev->subsystem_device) {
|
|
case 0x1751: /* M2N notebook */
|
|
case 0x1821: /* M5N notebook */
|
|
case 0x1897: /* A6L notebook */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
|
|
switch (dev->subsystem_device) {
|
|
case 0x184b: /* W1N notebook */
|
|
case 0x186a: /* M6Ne notebook */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
|
|
switch (dev->subsystem_device) {
|
|
case 0x80f2: /* P4P800-X */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
|
|
switch (dev->subsystem_device) {
|
|
case 0x1882: /* M6V notebook */
|
|
case 0x1977: /* A6VA notebook */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
} else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) {
|
|
if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
|
|
switch (dev->subsystem_device) {
|
|
case 0x088C: /* HP Compaq nc8000 */
|
|
case 0x0890: /* HP Compaq nc6000 */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
|
|
switch (dev->subsystem_device) {
|
|
case 0x12bc: /* HP D330L */
|
|
case 0x12bd: /* HP D530 */
|
|
case 0x006a: /* HP Compaq nx9500 */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82875_HB)
|
|
switch (dev->subsystem_device) {
|
|
case 0x12bf: /* HP xw4100 */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
} else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) {
|
|
if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
|
|
switch (dev->subsystem_device) {
|
|
case 0xC00C: /* Samsung P35 notebook */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
} else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) {
|
|
if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
|
|
switch (dev->subsystem_device) {
|
|
case 0x0058: /* Compaq Evo N620c */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82810_IG3)
|
|
switch (dev->subsystem_device) {
|
|
case 0xB16C: /* Compaq Deskpro EP 401963-001 (PCA# 010174) */
|
|
/* Motherboard doesn't have Host bridge
|
|
* subvendor/subdevice IDs, therefore checking
|
|
* its on-board VGA controller */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82801DB_2)
|
|
switch (dev->subsystem_device) {
|
|
case 0x00b8: /* Compaq Evo D510 CMT */
|
|
case 0x00b9: /* Compaq Evo D510 SFF */
|
|
case 0x00ba: /* Compaq Evo D510 USDT */
|
|
/* Motherboard doesn't have Host bridge
|
|
* subvendor/subdevice IDs and on-board VGA
|
|
* controller is disabled if an AGP card is
|
|
* inserted, therefore checking USB UHCI
|
|
* Controller #1 */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82815_CGC)
|
|
switch (dev->subsystem_device) {
|
|
case 0x001A: /* Compaq Deskpro EN SSF P667 815E */
|
|
/* Motherboard doesn't have host bridge
|
|
* subvendor/subdevice IDs, therefore checking
|
|
* its on-board VGA controller */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, asus_hides_smbus_hostbridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge);
|
|
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3, asus_hides_smbus_hostbridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_2, asus_hides_smbus_hostbridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC, asus_hides_smbus_hostbridge);
|
|
|
|
static void asus_hides_smbus_lpc(struct pci_dev *dev)
|
|
{
|
|
u16 val;
|
|
|
|
if (likely(!asus_hides_smbus))
|
|
return;
|
|
|
|
pci_read_config_word(dev, 0xF2, &val);
|
|
if (val & 0x8) {
|
|
pci_write_config_word(dev, 0xF2, val & (~0x8));
|
|
pci_read_config_word(dev, 0xF2, &val);
|
|
if (val & 0x8)
|
|
pci_info(dev, "i801 SMBus device continues to play 'hide and seek'! 0x%x\n",
|
|
val);
|
|
else
|
|
pci_info(dev, "Enabled i801 SMBus device\n");
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
|
|
|
|
/* It appears we just have one such device. If not, we have a warning */
|
|
static void __iomem *asus_rcba_base;
|
|
static void asus_hides_smbus_lpc_ich6_suspend(struct pci_dev *dev)
|
|
{
|
|
u32 rcba;
|
|
|
|
if (likely(!asus_hides_smbus))
|
|
return;
|
|
WARN_ON(asus_rcba_base);
|
|
|
|
pci_read_config_dword(dev, 0xF0, &rcba);
|
|
/* use bits 31:14, 16 kB aligned */
|
|
asus_rcba_base = ioremap(rcba & 0xFFFFC000, 0x4000);
|
|
if (asus_rcba_base == NULL)
|
|
return;
|
|
}
|
|
|
|
static void asus_hides_smbus_lpc_ich6_resume_early(struct pci_dev *dev)
|
|
{
|
|
u32 val;
|
|
|
|
if (likely(!asus_hides_smbus || !asus_rcba_base))
|
|
return;
|
|
|
|
/* read the Function Disable register, dword mode only */
|
|
val = readl(asus_rcba_base + 0x3418);
|
|
|
|
/* enable the SMBus device */
|
|
writel(val & 0xFFFFFFF7, asus_rcba_base + 0x3418);
|
|
}
|
|
|
|
static void asus_hides_smbus_lpc_ich6_resume(struct pci_dev *dev)
|
|
{
|
|
if (likely(!asus_hides_smbus || !asus_rcba_base))
|
|
return;
|
|
|
|
iounmap(asus_rcba_base);
|
|
asus_rcba_base = NULL;
|
|
pci_info(dev, "Enabled ICH6/i801 SMBus device\n");
|
|
}
|
|
|
|
static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
|
|
{
|
|
asus_hides_smbus_lpc_ich6_suspend(dev);
|
|
asus_hides_smbus_lpc_ich6_resume_early(dev);
|
|
asus_hides_smbus_lpc_ich6_resume(dev);
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6);
|
|
DECLARE_PCI_FIXUP_SUSPEND(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_suspend);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume_early);
|
|
|
|
/* SiS 96x south bridge: BIOS typically hides SMBus device... */
|
|
static void quirk_sis_96x_smbus(struct pci_dev *dev)
|
|
{
|
|
u8 val = 0;
|
|
pci_read_config_byte(dev, 0x77, &val);
|
|
if (val & 0x10) {
|
|
pci_info(dev, "Enabling SiS 96x SMBus\n");
|
|
pci_write_config_byte(dev, 0x77, val & ~0x10);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
|
|
|
|
/*
|
|
* ... This is further complicated by the fact that some SiS96x south
|
|
* bridges pretend to be 85C503/5513 instead. In that case see if we
|
|
* spotted a compatible north bridge to make sure.
|
|
* (pci_find_device() doesn't work yet)
|
|
*
|
|
* We can also enable the sis96x bit in the discovery register..
|
|
*/
|
|
#define SIS_DETECT_REGISTER 0x40
|
|
|
|
static void quirk_sis_503(struct pci_dev *dev)
|
|
{
|
|
u8 reg;
|
|
u16 devid;
|
|
|
|
pci_read_config_byte(dev, SIS_DETECT_REGISTER, ®);
|
|
pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6));
|
|
pci_read_config_word(dev, PCI_DEVICE_ID, &devid);
|
|
if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) {
|
|
pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Ok, it now shows up as a 96x. Run the 96x quirk by hand in case
|
|
* it has already been processed. (Depends on link order, which is
|
|
* apparently not guaranteed)
|
|
*/
|
|
dev->device = devid;
|
|
quirk_sis_96x_smbus(dev);
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
|
|
|
|
/*
|
|
* On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller
|
|
* and MC97 modem controller are disabled when a second PCI soundcard is
|
|
* present. This patch, tweaking the VT8237 ISA bridge, enables them.
|
|
* -- bjd
|
|
*/
|
|
static void asus_hides_ac97_lpc(struct pci_dev *dev)
|
|
{
|
|
u8 val;
|
|
int asus_hides_ac97 = 0;
|
|
|
|
if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
|
|
if (dev->device == PCI_DEVICE_ID_VIA_8237)
|
|
asus_hides_ac97 = 1;
|
|
}
|
|
|
|
if (!asus_hides_ac97)
|
|
return;
|
|
|
|
pci_read_config_byte(dev, 0x50, &val);
|
|
if (val & 0xc0) {
|
|
pci_write_config_byte(dev, 0x50, val & (~0xc0));
|
|
pci_read_config_byte(dev, 0x50, &val);
|
|
if (val & 0xc0)
|
|
pci_info(dev, "Onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n",
|
|
val);
|
|
else
|
|
pci_info(dev, "Enabled onboard AC97/MC97 devices\n");
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
|
|
|
|
#if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
|
|
|
|
/*
|
|
* If we are using libata we can drive this chip properly but must do this
|
|
* early on to make the additional device appear during the PCI scanning.
|
|
*/
|
|
static void quirk_jmicron_ata(struct pci_dev *pdev)
|
|
{
|
|
u32 conf1, conf5, class;
|
|
u8 hdr;
|
|
|
|
/* Only poke fn 0 */
|
|
if (PCI_FUNC(pdev->devfn))
|
|
return;
|
|
|
|
pci_read_config_dword(pdev, 0x40, &conf1);
|
|
pci_read_config_dword(pdev, 0x80, &conf5);
|
|
|
|
conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */
|
|
conf5 &= ~(1 << 24); /* Clear bit 24 */
|
|
|
|
switch (pdev->device) {
|
|
case PCI_DEVICE_ID_JMICRON_JMB360: /* SATA single port */
|
|
case PCI_DEVICE_ID_JMICRON_JMB362: /* SATA dual ports */
|
|
case PCI_DEVICE_ID_JMICRON_JMB364: /* SATA dual ports */
|
|
/* The controller should be in single function ahci mode */
|
|
conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */
|
|
break;
|
|
|
|
case PCI_DEVICE_ID_JMICRON_JMB365:
|
|
case PCI_DEVICE_ID_JMICRON_JMB366:
|
|
/* Redirect IDE second PATA port to the right spot */
|
|
conf5 |= (1 << 24);
|
|
fallthrough;
|
|
case PCI_DEVICE_ID_JMICRON_JMB361:
|
|
case PCI_DEVICE_ID_JMICRON_JMB363:
|
|
case PCI_DEVICE_ID_JMICRON_JMB369:
|
|
/* Enable dual function mode, AHCI on fn 0, IDE fn1 */
|
|
/* Set the class codes correctly and then direct IDE 0 */
|
|
conf1 |= 0x00C2A1B3; /* Set 0, 1, 4, 5, 7, 8, 13, 15, 17, 22, 23 */
|
|
break;
|
|
|
|
case PCI_DEVICE_ID_JMICRON_JMB368:
|
|
/* The controller should be in single function IDE mode */
|
|
conf1 |= 0x00C00000; /* Set 22, 23 */
|
|
break;
|
|
}
|
|
|
|
pci_write_config_dword(pdev, 0x40, conf1);
|
|
pci_write_config_dword(pdev, 0x80, conf5);
|
|
|
|
/* Update pdev accordingly */
|
|
pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr);
|
|
pdev->hdr_type = hdr & 0x7f;
|
|
pdev->multifunction = !!(hdr & 0x80);
|
|
|
|
pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class);
|
|
pdev->class = class >> 8;
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB364, quirk_jmicron_ata);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB369, quirk_jmicron_ata);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB364, quirk_jmicron_ata);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB369, quirk_jmicron_ata);
|
|
|
|
#endif
|
|
|
|
static void quirk_jmicron_async_suspend(struct pci_dev *dev)
|
|
{
|
|
if (dev->multifunction) {
|
|
device_disable_async_suspend(&dev->dev);
|
|
pci_info(dev, "async suspend disabled to avoid multi-function power-on ordering issue\n");
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE, 8, quirk_jmicron_async_suspend);
|
|
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_CLASS_STORAGE_SATA_AHCI, 0, quirk_jmicron_async_suspend);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_JMICRON, 0x2362, quirk_jmicron_async_suspend);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_JMICRON, 0x236f, quirk_jmicron_async_suspend);
|
|
|
|
#ifdef CONFIG_X86_IO_APIC
|
|
static void quirk_alder_ioapic(struct pci_dev *pdev)
|
|
{
|
|
int i;
|
|
|
|
if ((pdev->class >> 8) != 0xff00)
|
|
return;
|
|
|
|
/*
|
|
* The first BAR is the location of the IO-APIC... we must
|
|
* not touch this (and it's already covered by the fixmap), so
|
|
* forcibly insert it into the resource tree.
|
|
*/
|
|
if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0))
|
|
insert_resource(&iomem_resource, &pdev->resource[0]);
|
|
|
|
/*
|
|
* The next five BARs all seem to be rubbish, so just clean
|
|
* them out.
|
|
*/
|
|
for (i = 1; i < PCI_STD_NUM_BARS; i++)
|
|
memset(&pdev->resource[i], 0, sizeof(pdev->resource[i]));
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic);
|
|
#endif
|
|
|
|
static void quirk_no_msi(struct pci_dev *dev)
|
|
{
|
|
pci_info(dev, "avoiding MSI to work around a hardware defect\n");
|
|
dev->no_msi = 1;
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4386, quirk_no_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4387, quirk_no_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4388, quirk_no_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4389, quirk_no_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x438a, quirk_no_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x438b, quirk_no_msi);
|
|
|
|
static void quirk_pcie_mch(struct pci_dev *pdev)
|
|
{
|
|
pdev->no_msi = 1;
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch);
|
|
|
|
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_HUAWEI, 0x1610, PCI_CLASS_BRIDGE_PCI, 8, quirk_pcie_mch);
|
|
|
|
/*
|
|
* HiSilicon KunPeng920 and KunPeng930 have devices appear as PCI but are
|
|
* actually on the AMBA bus. These fake PCI devices can support SVA via
|
|
* SMMU stall feature, by setting dma-can-stall for ACPI platforms.
|
|
*
|
|
* Normally stalling must not be enabled for PCI devices, since it would
|
|
* break the PCI requirement for free-flowing writes and may lead to
|
|
* deadlock. We expect PCI devices to support ATS and PRI if they want to
|
|
* be fault-tolerant, so there's no ACPI binding to describe anything else,
|
|
* even when a "PCI" device turns out to be a regular old SoC device
|
|
* dressed up as a RCiEP and normal rules don't apply.
|
|
*/
|
|
static void quirk_huawei_pcie_sva(struct pci_dev *pdev)
|
|
{
|
|
struct property_entry properties[] = {
|
|
PROPERTY_ENTRY_BOOL("dma-can-stall"),
|
|
{},
|
|
};
|
|
|
|
if (pdev->revision != 0x21 && pdev->revision != 0x30)
|
|
return;
|
|
|
|
pdev->pasid_no_tlp = 1;
|
|
|
|
/*
|
|
* Set the dma-can-stall property on ACPI platforms. Device tree
|
|
* can set it directly.
|
|
*/
|
|
if (!pdev->dev.of_node &&
|
|
device_add_properties(&pdev->dev, properties))
|
|
pci_warn(pdev, "could not add stall property");
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_HUAWEI, 0xa250, quirk_huawei_pcie_sva);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_HUAWEI, 0xa251, quirk_huawei_pcie_sva);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_HUAWEI, 0xa255, quirk_huawei_pcie_sva);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_HUAWEI, 0xa256, quirk_huawei_pcie_sva);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_HUAWEI, 0xa258, quirk_huawei_pcie_sva);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_HUAWEI, 0xa259, quirk_huawei_pcie_sva);
|
|
|
|
/*
|
|
* It's possible for the MSI to get corrupted if SHPC and ACPI are used
|
|
* together on certain PXH-based systems.
|
|
*/
|
|
static void quirk_pcie_pxh(struct pci_dev *dev)
|
|
{
|
|
dev->no_msi = 1;
|
|
pci_warn(dev, "PXH quirk detected; SHPC device MSI disabled\n");
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh);
|
|
|
|
/*
|
|
* Some Intel PCI Express chipsets have trouble with downstream device
|
|
* power management.
|
|
*/
|
|
static void quirk_intel_pcie_pm(struct pci_dev *dev)
|
|
{
|
|
pci_pm_d3hot_delay = 120;
|
|
dev->no_d1d2 = 1;
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm);
|
|
|
|
static void quirk_d3hot_delay(struct pci_dev *dev, unsigned int delay)
|
|
{
|
|
if (dev->d3hot_delay >= delay)
|
|
return;
|
|
|
|
dev->d3hot_delay = delay;
|
|
pci_info(dev, "extending delay after power-on from D3hot to %d msec\n",
|
|
dev->d3hot_delay);
|
|
}
|
|
|
|
static void quirk_radeon_pm(struct pci_dev *dev)
|
|
{
|
|
if (dev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
|
|
dev->subsystem_device == 0x00e2)
|
|
quirk_d3hot_delay(dev, 20);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6741, quirk_radeon_pm);
|
|
|
|
/*
|
|
* Ryzen5/7 XHCI controllers fail upon resume from runtime suspend or s2idle.
|
|
* https://bugzilla.kernel.org/show_bug.cgi?id=205587
|
|
*
|
|
* The kernel attempts to transition these devices to D3cold, but that seems
|
|
* to be ineffective on the platforms in question; the PCI device appears to
|
|
* remain on in D3hot state. The D3hot-to-D0 transition then requires an
|
|
* extended delay in order to succeed.
|
|
*/
|
|
static void quirk_ryzen_xhci_d3hot(struct pci_dev *dev)
|
|
{
|
|
quirk_d3hot_delay(dev, 20);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x15e0, quirk_ryzen_xhci_d3hot);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x15e1, quirk_ryzen_xhci_d3hot);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x1639, quirk_ryzen_xhci_d3hot);
|
|
|
|
#ifdef CONFIG_X86_IO_APIC
|
|
static int dmi_disable_ioapicreroute(const struct dmi_system_id *d)
|
|
{
|
|
noioapicreroute = 1;
|
|
pr_info("%s detected: disable boot interrupt reroute\n", d->ident);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct dmi_system_id boot_interrupt_dmi_table[] = {
|
|
/*
|
|
* Systems to exclude from boot interrupt reroute quirks
|
|
*/
|
|
{
|
|
.callback = dmi_disable_ioapicreroute,
|
|
.ident = "ASUSTek Computer INC. M2N-LR",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTek Computer INC."),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "M2N-LR"),
|
|
},
|
|
},
|
|
{}
|
|
};
|
|
|
|
/*
|
|
* Boot interrupts on some chipsets cannot be turned off. For these chipsets,
|
|
* remap the original interrupt in the Linux kernel to the boot interrupt, so
|
|
* that a PCI device's interrupt handler is installed on the boot interrupt
|
|
* line instead.
|
|
*/
|
|
static void quirk_reroute_to_boot_interrupts_intel(struct pci_dev *dev)
|
|
{
|
|
dmi_check_system(boot_interrupt_dmi_table);
|
|
if (noioapicquirk || noioapicreroute)
|
|
return;
|
|
|
|
dev->irq_reroute_variant = INTEL_IRQ_REROUTE_VARIANT;
|
|
pci_info(dev, "rerouting interrupts for [%04x:%04x]\n",
|
|
dev->vendor, dev->device);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
|
|
|
|
/*
|
|
* On some chipsets we can disable the generation of legacy INTx boot
|
|
* interrupts.
|
|
*/
|
|
|
|
/*
|
|
* IO-APIC1 on 6300ESB generates boot interrupts, see Intel order no
|
|
* 300641-004US, section 5.7.3.
|
|
*
|
|
* Core IO on Xeon E5 1600/2600/4600, see Intel order no 326509-003.
|
|
* Core IO on Xeon E5 v2, see Intel order no 329188-003.
|
|
* Core IO on Xeon E7 v2, see Intel order no 329595-002.
|
|
* Core IO on Xeon E5 v3, see Intel order no 330784-003.
|
|
* Core IO on Xeon E7 v3, see Intel order no 332315-001US.
|
|
* Core IO on Xeon E5 v4, see Intel order no 333810-002US.
|
|
* Core IO on Xeon E7 v4, see Intel order no 332315-001US.
|
|
* Core IO on Xeon D-1500, see Intel order no 332051-001.
|
|
* Core IO on Xeon Scalable, see Intel order no 610950.
|
|
*/
|
|
#define INTEL_6300_IOAPIC_ABAR 0x40 /* Bus 0, Dev 29, Func 5 */
|
|
#define INTEL_6300_DISABLE_BOOT_IRQ (1<<14)
|
|
|
|
#define INTEL_CIPINTRC_CFG_OFFSET 0x14C /* Bus 0, Dev 5, Func 0 */
|
|
#define INTEL_CIPINTRC_DIS_INTX_ICH (1<<25)
|
|
|
|
static void quirk_disable_intel_boot_interrupt(struct pci_dev *dev)
|
|
{
|
|
u16 pci_config_word;
|
|
u32 pci_config_dword;
|
|
|
|
if (noioapicquirk)
|
|
return;
|
|
|
|
switch (dev->device) {
|
|
case PCI_DEVICE_ID_INTEL_ESB_10:
|
|
pci_read_config_word(dev, INTEL_6300_IOAPIC_ABAR,
|
|
&pci_config_word);
|
|
pci_config_word |= INTEL_6300_DISABLE_BOOT_IRQ;
|
|
pci_write_config_word(dev, INTEL_6300_IOAPIC_ABAR,
|
|
pci_config_word);
|
|
break;
|
|
case 0x3c28: /* Xeon E5 1600/2600/4600 */
|
|
case 0x0e28: /* Xeon E5/E7 V2 */
|
|
case 0x2f28: /* Xeon E5/E7 V3,V4 */
|
|
case 0x6f28: /* Xeon D-1500 */
|
|
case 0x2034: /* Xeon Scalable Family */
|
|
pci_read_config_dword(dev, INTEL_CIPINTRC_CFG_OFFSET,
|
|
&pci_config_dword);
|
|
pci_config_dword |= INTEL_CIPINTRC_DIS_INTX_ICH;
|
|
pci_write_config_dword(dev, INTEL_CIPINTRC_CFG_OFFSET,
|
|
pci_config_dword);
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
pci_info(dev, "disabled boot interrupts on device [%04x:%04x]\n",
|
|
dev->vendor, dev->device);
|
|
}
|
|
/*
|
|
* Device 29 Func 5 Device IDs of IO-APIC
|
|
* containing ABAR—APIC1 Alternate Base Address Register
|
|
*/
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10,
|
|
quirk_disable_intel_boot_interrupt);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10,
|
|
quirk_disable_intel_boot_interrupt);
|
|
|
|
/*
|
|
* Device 5 Func 0 Device IDs of Core IO modules/hubs
|
|
* containing Coherent Interface Protocol Interrupt Control
|
|
*
|
|
* Device IDs obtained from volume 2 datasheets of commented
|
|
* families above.
|
|
*/
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x3c28,
|
|
quirk_disable_intel_boot_interrupt);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0e28,
|
|
quirk_disable_intel_boot_interrupt);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2f28,
|
|
quirk_disable_intel_boot_interrupt);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x6f28,
|
|
quirk_disable_intel_boot_interrupt);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2034,
|
|
quirk_disable_intel_boot_interrupt);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, 0x3c28,
|
|
quirk_disable_intel_boot_interrupt);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, 0x0e28,
|
|
quirk_disable_intel_boot_interrupt);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, 0x2f28,
|
|
quirk_disable_intel_boot_interrupt);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, 0x6f28,
|
|
quirk_disable_intel_boot_interrupt);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, 0x2034,
|
|
quirk_disable_intel_boot_interrupt);
|
|
|
|
/* Disable boot interrupts on HT-1000 */
|
|
#define BC_HT1000_FEATURE_REG 0x64
|
|
#define BC_HT1000_PIC_REGS_ENABLE (1<<0)
|
|
#define BC_HT1000_MAP_IDX 0xC00
|
|
#define BC_HT1000_MAP_DATA 0xC01
|
|
|
|
static void quirk_disable_broadcom_boot_interrupt(struct pci_dev *dev)
|
|
{
|
|
u32 pci_config_dword;
|
|
u8 irq;
|
|
|
|
if (noioapicquirk)
|
|
return;
|
|
|
|
pci_read_config_dword(dev, BC_HT1000_FEATURE_REG, &pci_config_dword);
|
|
pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword |
|
|
BC_HT1000_PIC_REGS_ENABLE);
|
|
|
|
for (irq = 0x10; irq < 0x10 + 32; irq++) {
|
|
outb(irq, BC_HT1000_MAP_IDX);
|
|
outb(0x00, BC_HT1000_MAP_DATA);
|
|
}
|
|
|
|
pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword);
|
|
|
|
pci_info(dev, "disabled boot interrupts on device [%04x:%04x]\n",
|
|
dev->vendor, dev->device);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
|
|
|
|
/* Disable boot interrupts on AMD and ATI chipsets */
|
|
|
|
/*
|
|
* NOIOAMODE needs to be disabled to disable "boot interrupts". For AMD 8131
|
|
* rev. A0 and B0, NOIOAMODE needs to be disabled anyway to fix IO-APIC mode
|
|
* (due to an erratum).
|
|
*/
|
|
#define AMD_813X_MISC 0x40
|
|
#define AMD_813X_NOIOAMODE (1<<0)
|
|
#define AMD_813X_REV_B1 0x12
|
|
#define AMD_813X_REV_B2 0x13
|
|
|
|
static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev)
|
|
{
|
|
u32 pci_config_dword;
|
|
|
|
if (noioapicquirk)
|
|
return;
|
|
if ((dev->revision == AMD_813X_REV_B1) ||
|
|
(dev->revision == AMD_813X_REV_B2))
|
|
return;
|
|
|
|
pci_read_config_dword(dev, AMD_813X_MISC, &pci_config_dword);
|
|
pci_config_dword &= ~AMD_813X_NOIOAMODE;
|
|
pci_write_config_dword(dev, AMD_813X_MISC, pci_config_dword);
|
|
|
|
pci_info(dev, "disabled boot interrupts on device [%04x:%04x]\n",
|
|
dev->vendor, dev->device);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
|
|
|
|
#define AMD_8111_PCI_IRQ_ROUTING 0x56
|
|
|
|
static void quirk_disable_amd_8111_boot_interrupt(struct pci_dev *dev)
|
|
{
|
|
u16 pci_config_word;
|
|
|
|
if (noioapicquirk)
|
|
return;
|
|
|
|
pci_read_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, &pci_config_word);
|
|
if (!pci_config_word) {
|
|
pci_info(dev, "boot interrupts on device [%04x:%04x] already disabled\n",
|
|
dev->vendor, dev->device);
|
|
return;
|
|
}
|
|
pci_write_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, 0);
|
|
pci_info(dev, "disabled boot interrupts on device [%04x:%04x]\n",
|
|
dev->vendor, dev->device);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
|
|
#endif /* CONFIG_X86_IO_APIC */
|
|
|
|
/*
|
|
* Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size
|
|
* but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
|
|
* Re-allocate the region if needed...
|
|
*/
|
|
static void quirk_tc86c001_ide(struct pci_dev *dev)
|
|
{
|
|
struct resource *r = &dev->resource[0];
|
|
|
|
if (r->start & 0x8) {
|
|
r->flags |= IORESOURCE_UNSET;
|
|
r->start = 0;
|
|
r->end = 0xf;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2,
|
|
PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE,
|
|
quirk_tc86c001_ide);
|
|
|
|
/*
|
|
* PLX PCI 9050 PCI Target bridge controller has an erratum that prevents the
|
|
* local configuration registers accessible via BAR0 (memory) or BAR1 (i/o)
|
|
* being read correctly if bit 7 of the base address is set.
|
|
* The BAR0 or BAR1 region may be disabled (size 0) or enabled (size 128).
|
|
* Re-allocate the regions to a 256-byte boundary if necessary.
|
|
*/
|
|
static void quirk_plx_pci9050(struct pci_dev *dev)
|
|
{
|
|
unsigned int bar;
|
|
|
|
/* Fixed in revision 2 (PCI 9052). */
|
|
if (dev->revision >= 2)
|
|
return;
|
|
for (bar = 0; bar <= 1; bar++)
|
|
if (pci_resource_len(dev, bar) == 0x80 &&
|
|
(pci_resource_start(dev, bar) & 0x80)) {
|
|
struct resource *r = &dev->resource[bar];
|
|
pci_info(dev, "Re-allocating PLX PCI 9050 BAR %u to length 256 to avoid bit 7 bug\n",
|
|
bar);
|
|
r->flags |= IORESOURCE_UNSET;
|
|
r->start = 0;
|
|
r->end = 0xff;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
|
|
quirk_plx_pci9050);
|
|
/*
|
|
* The following Meilhaus (vendor ID 0x1402) device IDs (amongst others)
|
|
* may be using the PLX PCI 9050: 0x0630, 0x0940, 0x0950, 0x0960, 0x100b,
|
|
* 0x1400, 0x140a, 0x140b, 0x14e0, 0x14ea, 0x14eb, 0x1604, 0x1608, 0x160c,
|
|
* 0x168f, 0x2000, 0x2600, 0x3000, 0x810a, 0x810b.
|
|
*
|
|
* Currently, device IDs 0x2000 and 0x2600 are used by the Comedi "me_daq"
|
|
* driver.
|
|
*/
|
|
DECLARE_PCI_FIXUP_HEADER(0x1402, 0x2000, quirk_plx_pci9050);
|
|
DECLARE_PCI_FIXUP_HEADER(0x1402, 0x2600, quirk_plx_pci9050);
|
|
|
|
static void quirk_netmos(struct pci_dev *dev)
|
|
{
|
|
unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
|
|
unsigned int num_serial = dev->subsystem_device & 0xf;
|
|
|
|
/*
|
|
* These Netmos parts are multiport serial devices with optional
|
|
* parallel ports. Even when parallel ports are present, they
|
|
* are identified as class SERIAL, which means the serial driver
|
|
* will claim them. To prevent this, mark them as class OTHER.
|
|
* These combo devices should be claimed by parport_serial.
|
|
*
|
|
* The subdevice ID is of the form 0x00PS, where <P> is the number
|
|
* of parallel ports and <S> is the number of serial ports.
|
|
*/
|
|
switch (dev->device) {
|
|
case PCI_DEVICE_ID_NETMOS_9835:
|
|
/* Well, this rule doesn't hold for the following 9835 device */
|
|
if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM &&
|
|
dev->subsystem_device == 0x0299)
|
|
return;
|
|
fallthrough;
|
|
case PCI_DEVICE_ID_NETMOS_9735:
|
|
case PCI_DEVICE_ID_NETMOS_9745:
|
|
case PCI_DEVICE_ID_NETMOS_9845:
|
|
case PCI_DEVICE_ID_NETMOS_9855:
|
|
if (num_parallel) {
|
|
pci_info(dev, "Netmos %04x (%u parallel, %u serial); changing class SERIAL to OTHER (use parport_serial)\n",
|
|
dev->device, num_parallel, num_serial);
|
|
dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) |
|
|
(dev->class & 0xff);
|
|
}
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID,
|
|
PCI_CLASS_COMMUNICATION_SERIAL, 8, quirk_netmos);
|
|
|
|
static void quirk_e100_interrupt(struct pci_dev *dev)
|
|
{
|
|
u16 command, pmcsr;
|
|
u8 __iomem *csr;
|
|
u8 cmd_hi;
|
|
|
|
switch (dev->device) {
|
|
/* PCI IDs taken from drivers/net/e100.c */
|
|
case 0x1029:
|
|
case 0x1030 ... 0x1034:
|
|
case 0x1038 ... 0x103E:
|
|
case 0x1050 ... 0x1057:
|
|
case 0x1059:
|
|
case 0x1064 ... 0x106B:
|
|
case 0x1091 ... 0x1095:
|
|
case 0x1209:
|
|
case 0x1229:
|
|
case 0x2449:
|
|
case 0x2459:
|
|
case 0x245D:
|
|
case 0x27DC:
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Some firmware hands off the e100 with interrupts enabled,
|
|
* which can cause a flood of interrupts if packets are
|
|
* received before the driver attaches to the device. So
|
|
* disable all e100 interrupts here. The driver will
|
|
* re-enable them when it's ready.
|
|
*/
|
|
pci_read_config_word(dev, PCI_COMMAND, &command);
|
|
|
|
if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0))
|
|
return;
|
|
|
|
/*
|
|
* Check that the device is in the D0 power state. If it's not,
|
|
* there is no point to look any further.
|
|
*/
|
|
if (dev->pm_cap) {
|
|
pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr);
|
|
if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0)
|
|
return;
|
|
}
|
|
|
|
/* Convert from PCI bus to resource space. */
|
|
csr = ioremap(pci_resource_start(dev, 0), 8);
|
|
if (!csr) {
|
|
pci_warn(dev, "Can't map e100 registers\n");
|
|
return;
|
|
}
|
|
|
|
cmd_hi = readb(csr + 3);
|
|
if (cmd_hi == 0) {
|
|
pci_warn(dev, "Firmware left e100 interrupts enabled; disabling\n");
|
|
writeb(1, csr + 3);
|
|
}
|
|
|
|
iounmap(csr);
|
|
}
|
|
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
|
|
PCI_CLASS_NETWORK_ETHERNET, 8, quirk_e100_interrupt);
|
|
|
|
/*
|
|
* The 82575 and 82598 may experience data corruption issues when transitioning
|
|
* out of L0S. To prevent this we need to disable L0S on the PCIe link.
|
|
*/
|
|
static void quirk_disable_aspm_l0s(struct pci_dev *dev)
|
|
{
|
|
pci_info(dev, "Disabling L0s\n");
|
|
pci_disable_link_state(dev, PCIE_LINK_STATE_L0S);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a7, quirk_disable_aspm_l0s);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a9, quirk_disable_aspm_l0s);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10b6, quirk_disable_aspm_l0s);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c6, quirk_disable_aspm_l0s);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c7, quirk_disable_aspm_l0s);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c8, quirk_disable_aspm_l0s);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10d6, quirk_disable_aspm_l0s);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10db, quirk_disable_aspm_l0s);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10dd, quirk_disable_aspm_l0s);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10e1, quirk_disable_aspm_l0s);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10ec, quirk_disable_aspm_l0s);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f1, quirk_disable_aspm_l0s);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f4, quirk_disable_aspm_l0s);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1508, quirk_disable_aspm_l0s);
|
|
|
|
static void quirk_disable_aspm_l0s_l1(struct pci_dev *dev)
|
|
{
|
|
pci_info(dev, "Disabling ASPM L0s/L1\n");
|
|
pci_disable_link_state(dev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1);
|
|
}
|
|
|
|
/*
|
|
* ASM1083/1085 PCIe-PCI bridge devices cause AER timeout errors on the
|
|
* upstream PCIe root port when ASPM is enabled. At least L0s mode is affected;
|
|
* disable both L0s and L1 for now to be safe.
|
|
*/
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ASMEDIA, 0x1080, quirk_disable_aspm_l0s_l1);
|
|
|
|
/*
|
|
* Some Pericom PCIe-to-PCI bridges in reverse mode need the PCIe Retrain
|
|
* Link bit cleared after starting the link retrain process to allow this
|
|
* process to finish.
|
|
*
|
|
* Affected devices: PI7C9X110, PI7C9X111SL, PI7C9X130. See also the
|
|
* Pericom Errata Sheet PI7C9X111SLB_errata_rev1.2_102711.pdf.
|
|
*/
|
|
static void quirk_enable_clear_retrain_link(struct pci_dev *dev)
|
|
{
|
|
dev->clear_retrain_link = 1;
|
|
pci_info(dev, "Enable PCIe Retrain Link quirk\n");
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PERICOM, 0xe110, quirk_enable_clear_retrain_link);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PERICOM, 0xe111, quirk_enable_clear_retrain_link);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PERICOM, 0xe130, quirk_enable_clear_retrain_link);
|
|
|
|
static void fixup_rev1_53c810(struct pci_dev *dev)
|
|
{
|
|
u32 class = dev->class;
|
|
|
|
/*
|
|
* rev 1 ncr53c810 chips don't set the class at all which means
|
|
* they don't get their resources remapped. Fix that here.
|
|
*/
|
|
if (class)
|
|
return;
|
|
|
|
dev->class = PCI_CLASS_STORAGE_SCSI << 8;
|
|
pci_info(dev, "NCR 53c810 rev 1 PCI class overridden (%#08x -> %#08x)\n",
|
|
class, dev->class);
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
|
|
|
|
/* Enable 1k I/O space granularity on the Intel P64H2 */
|
|
static void quirk_p64h2_1k_io(struct pci_dev *dev)
|
|
{
|
|
u16 en1k;
|
|
|
|
pci_read_config_word(dev, 0x40, &en1k);
|
|
|
|
if (en1k & 0x200) {
|
|
pci_info(dev, "Enable I/O Space to 1KB granularity\n");
|
|
dev->io_window_1k = 1;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io);
|
|
|
|
/*
|
|
* Under some circumstances, AER is not linked with extended capabilities.
|
|
* Force it to be linked by setting the corresponding control bit in the
|
|
* config space.
|
|
*/
|
|
static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
|
|
{
|
|
uint8_t b;
|
|
|
|
if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
|
|
if (!(b & 0x20)) {
|
|
pci_write_config_byte(dev, 0xf41, b | 0x20);
|
|
pci_info(dev, "Linking AER extended capability\n");
|
|
}
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
|
|
quirk_nvidia_ck804_pcie_aer_ext_cap);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
|
|
quirk_nvidia_ck804_pcie_aer_ext_cap);
|
|
|
|
static void quirk_via_cx700_pci_parking_caching(struct pci_dev *dev)
|
|
{
|
|
/*
|
|
* Disable PCI Bus Parking and PCI Master read caching on CX700
|
|
* which causes unspecified timing errors with a VT6212L on the PCI
|
|
* bus leading to USB2.0 packet loss.
|
|
*
|
|
* This quirk is only enabled if a second (on the external PCI bus)
|
|
* VT6212L is found -- the CX700 core itself also contains a USB
|
|
* host controller with the same PCI ID as the VT6212L.
|
|
*/
|
|
|
|
/* Count VT6212L instances */
|
|
struct pci_dev *p = pci_get_device(PCI_VENDOR_ID_VIA,
|
|
PCI_DEVICE_ID_VIA_8235_USB_2, NULL);
|
|
uint8_t b;
|
|
|
|
/*
|
|
* p should contain the first (internal) VT6212L -- see if we have
|
|
* an external one by searching again.
|
|
*/
|
|
p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235_USB_2, p);
|
|
if (!p)
|
|
return;
|
|
pci_dev_put(p);
|
|
|
|
if (pci_read_config_byte(dev, 0x76, &b) == 0) {
|
|
if (b & 0x40) {
|
|
/* Turn off PCI Bus Parking */
|
|
pci_write_config_byte(dev, 0x76, b ^ 0x40);
|
|
|
|
pci_info(dev, "Disabling VIA CX700 PCI parking\n");
|
|
}
|
|
}
|
|
|
|
if (pci_read_config_byte(dev, 0x72, &b) == 0) {
|
|
if (b != 0) {
|
|
/* Turn off PCI Master read caching */
|
|
pci_write_config_byte(dev, 0x72, 0x0);
|
|
|
|
/* Set PCI Master Bus time-out to "1x16 PCLK" */
|
|
pci_write_config_byte(dev, 0x75, 0x1);
|
|
|
|
/* Disable "Read FIFO Timer" */
|
|
pci_write_config_byte(dev, 0x77, 0x0);
|
|
|
|
pci_info(dev, "Disabling VIA CX700 PCI caching\n");
|
|
}
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_caching);
|
|
|
|
static void quirk_brcm_5719_limit_mrrs(struct pci_dev *dev)
|
|
{
|
|
u32 rev;
|
|
|
|
pci_read_config_dword(dev, 0xf4, &rev);
|
|
|
|
/* Only CAP the MRRS if the device is a 5719 A0 */
|
|
if (rev == 0x05719000) {
|
|
int readrq = pcie_get_readrq(dev);
|
|
if (readrq > 2048)
|
|
pcie_set_readrq(dev, 2048);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_BROADCOM,
|
|
PCI_DEVICE_ID_TIGON3_5719,
|
|
quirk_brcm_5719_limit_mrrs);
|
|
|
|
/*
|
|
* Originally in EDAC sources for i82875P: Intel tells BIOS developers to
|
|
* hide device 6 which configures the overflow device access containing the
|
|
* DRBs - this is where we expose device 6.
|
|
* http://www.x86-secret.com/articles/tweak/pat/patsecrets-2.htm
|
|
*/
|
|
static void quirk_unhide_mch_dev6(struct pci_dev *dev)
|
|
{
|
|
u8 reg;
|
|
|
|
if (pci_read_config_byte(dev, 0xF4, ®) == 0 && !(reg & 0x02)) {
|
|
pci_info(dev, "Enabling MCH 'Overflow' Device\n");
|
|
pci_write_config_byte(dev, 0xF4, reg | 0x02);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB,
|
|
quirk_unhide_mch_dev6);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB,
|
|
quirk_unhide_mch_dev6);
|
|
|
|
#ifdef CONFIG_PCI_MSI
|
|
/*
|
|
* Some chipsets do not support MSI. We cannot easily rely on setting
|
|
* PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually some
|
|
* other buses controlled by the chipset even if Linux is not aware of it.
|
|
* Instead of setting the flag on all buses in the machine, simply disable
|
|
* MSI globally.
|
|
*/
|
|
static void quirk_disable_all_msi(struct pci_dev *dev)
|
|
{
|
|
pci_no_msi();
|
|
pci_warn(dev, "MSI quirk detected; MSI disabled\n");
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disable_all_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3364, quirk_disable_all_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8380_0, quirk_disable_all_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, 0x0761, quirk_disable_all_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SAMSUNG, 0xa5e3, quirk_disable_all_msi);
|
|
|
|
/* Disable MSI on chipsets that are known to not support it */
|
|
static void quirk_disable_msi(struct pci_dev *dev)
|
|
{
|
|
if (dev->subordinate) {
|
|
pci_warn(dev, "MSI quirk detected; subordinate MSI disabled\n");
|
|
dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0xa238, quirk_disable_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x5a3f, quirk_disable_msi);
|
|
|
|
/*
|
|
* The APC bridge device in AMD 780 family northbridges has some random
|
|
* OEM subsystem ID in its vendor ID register (erratum 18), so instead
|
|
* we use the possible vendor/device IDs of the host bridge for the
|
|
* declared quirk, and search for the APC bridge by slot number.
|
|
*/
|
|
static void quirk_amd_780_apc_msi(struct pci_dev *host_bridge)
|
|
{
|
|
struct pci_dev *apc_bridge;
|
|
|
|
apc_bridge = pci_get_slot(host_bridge->bus, PCI_DEVFN(1, 0));
|
|
if (apc_bridge) {
|
|
if (apc_bridge->device == 0x9602)
|
|
quirk_disable_msi(apc_bridge);
|
|
pci_dev_put(apc_bridge);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9600, quirk_amd_780_apc_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9601, quirk_amd_780_apc_msi);
|
|
|
|
/*
|
|
* Go through the list of HyperTransport capabilities and return 1 if a HT
|
|
* MSI capability is found and enabled.
|
|
*/
|
|
static int msi_ht_cap_enabled(struct pci_dev *dev)
|
|
{
|
|
int pos, ttl = PCI_FIND_CAP_TTL;
|
|
|
|
pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
|
|
while (pos && ttl--) {
|
|
u8 flags;
|
|
|
|
if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
|
|
&flags) == 0) {
|
|
pci_info(dev, "Found %s HT MSI Mapping\n",
|
|
flags & HT_MSI_FLAGS_ENABLE ?
|
|
"enabled" : "disabled");
|
|
return (flags & HT_MSI_FLAGS_ENABLE) != 0;
|
|
}
|
|
|
|
pos = pci_find_next_ht_capability(dev, pos,
|
|
HT_CAPTYPE_MSI_MAPPING);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Check the HyperTransport MSI mapping to know whether MSI is enabled or not */
|
|
static void quirk_msi_ht_cap(struct pci_dev *dev)
|
|
{
|
|
if (!msi_ht_cap_enabled(dev))
|
|
quirk_disable_msi(dev);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
|
|
quirk_msi_ht_cap);
|
|
|
|
/*
|
|
* The nVidia CK804 chipset may have 2 HT MSI mappings. MSI is supported
|
|
* if the MSI capability is set in any of these mappings.
|
|
*/
|
|
static void quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
|
|
{
|
|
struct pci_dev *pdev;
|
|
|
|
/*
|
|
* Check HT MSI cap on this chipset and the root one. A single one
|
|
* having MSI is enough to be sure that MSI is supported.
|
|
*/
|
|
pdev = pci_get_slot(dev->bus, 0);
|
|
if (!pdev)
|
|
return;
|
|
if (!msi_ht_cap_enabled(pdev))
|
|
quirk_msi_ht_cap(dev);
|
|
pci_dev_put(pdev);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
|
|
quirk_nvidia_ck804_msi_ht_cap);
|
|
|
|
/* Force enable MSI mapping capability on HT bridges */
|
|
static void ht_enable_msi_mapping(struct pci_dev *dev)
|
|
{
|
|
int pos, ttl = PCI_FIND_CAP_TTL;
|
|
|
|
pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
|
|
while (pos && ttl--) {
|
|
u8 flags;
|
|
|
|
if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
|
|
&flags) == 0) {
|
|
pci_info(dev, "Enabling HT MSI Mapping\n");
|
|
|
|
pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
|
|
flags | HT_MSI_FLAGS_ENABLE);
|
|
}
|
|
pos = pci_find_next_ht_capability(dev, pos,
|
|
HT_CAPTYPE_MSI_MAPPING);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
|
|
PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
|
|
ht_enable_msi_mapping);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE,
|
|
ht_enable_msi_mapping);
|
|
|
|
/*
|
|
* The P5N32-SLI motherboards from Asus have a problem with MSI
|
|
* for the MCP55 NIC. It is not yet determined whether the MSI problem
|
|
* also affects other devices. As for now, turn off MSI for this device.
|
|
*/
|
|
static void nvenet_msi_disable(struct pci_dev *dev)
|
|
{
|
|
const char *board_name = dmi_get_system_info(DMI_BOARD_NAME);
|
|
|
|
if (board_name &&
|
|
(strstr(board_name, "P5N32-SLI PREMIUM") ||
|
|
strstr(board_name, "P5N32-E SLI"))) {
|
|
pci_info(dev, "Disabling MSI for MCP55 NIC on P5N32-SLI\n");
|
|
dev->no_msi = 1;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
|
|
PCI_DEVICE_ID_NVIDIA_NVENET_15,
|
|
nvenet_msi_disable);
|
|
|
|
/*
|
|
* PCIe spec r4.0 sec 7.7.1.2 and sec 7.7.2.2 say that if MSI/MSI-X is enabled,
|
|
* then the device can't use INTx interrupts. Tegra's PCIe root ports don't
|
|
* generate MSI interrupts for PME and AER events instead only INTx interrupts
|
|
* are generated. Though Tegra's PCIe root ports can generate MSI interrupts
|
|
* for other events, since PCIe specificiation doesn't support using a mix of
|
|
* INTx and MSI/MSI-X, it is required to disable MSI interrupts to avoid port
|
|
* service drivers registering their respective ISRs for MSIs.
|
|
*/
|
|
static void pci_quirk_nvidia_tegra_disable_rp_msi(struct pci_dev *dev)
|
|
{
|
|
dev->no_msi = 1;
|
|
}
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_NVIDIA, 0x1ad0,
|
|
PCI_CLASS_BRIDGE_PCI, 8,
|
|
pci_quirk_nvidia_tegra_disable_rp_msi);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_NVIDIA, 0x1ad1,
|
|
PCI_CLASS_BRIDGE_PCI, 8,
|
|
pci_quirk_nvidia_tegra_disable_rp_msi);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_NVIDIA, 0x1ad2,
|
|
PCI_CLASS_BRIDGE_PCI, 8,
|
|
pci_quirk_nvidia_tegra_disable_rp_msi);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_NVIDIA, 0x0bf0,
|
|
PCI_CLASS_BRIDGE_PCI, 8,
|
|
pci_quirk_nvidia_tegra_disable_rp_msi);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_NVIDIA, 0x0bf1,
|
|
PCI_CLASS_BRIDGE_PCI, 8,
|
|
pci_quirk_nvidia_tegra_disable_rp_msi);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_NVIDIA, 0x0e1c,
|
|
PCI_CLASS_BRIDGE_PCI, 8,
|
|
pci_quirk_nvidia_tegra_disable_rp_msi);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_NVIDIA, 0x0e1d,
|
|
PCI_CLASS_BRIDGE_PCI, 8,
|
|
pci_quirk_nvidia_tegra_disable_rp_msi);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_NVIDIA, 0x0e12,
|
|
PCI_CLASS_BRIDGE_PCI, 8,
|
|
pci_quirk_nvidia_tegra_disable_rp_msi);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_NVIDIA, 0x0e13,
|
|
PCI_CLASS_BRIDGE_PCI, 8,
|
|
pci_quirk_nvidia_tegra_disable_rp_msi);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_NVIDIA, 0x0fae,
|
|
PCI_CLASS_BRIDGE_PCI, 8,
|
|
pci_quirk_nvidia_tegra_disable_rp_msi);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_NVIDIA, 0x0faf,
|
|
PCI_CLASS_BRIDGE_PCI, 8,
|
|
pci_quirk_nvidia_tegra_disable_rp_msi);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_NVIDIA, 0x10e5,
|
|
PCI_CLASS_BRIDGE_PCI, 8,
|
|
pci_quirk_nvidia_tegra_disable_rp_msi);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_NVIDIA, 0x10e6,
|
|
PCI_CLASS_BRIDGE_PCI, 8,
|
|
pci_quirk_nvidia_tegra_disable_rp_msi);
|
|
|
|
/*
|
|
* Some versions of the MCP55 bridge from Nvidia have a legacy IRQ routing
|
|
* config register. This register controls the routing of legacy
|
|
* interrupts from devices that route through the MCP55. If this register
|
|
* is misprogrammed, interrupts are only sent to the BSP, unlike
|
|
* conventional systems where the IRQ is broadcast to all online CPUs. Not
|
|
* having this register set properly prevents kdump from booting up
|
|
* properly, so let's make sure that we have it set correctly.
|
|
* Note that this is an undocumented register.
|
|
*/
|
|
static void nvbridge_check_legacy_irq_routing(struct pci_dev *dev)
|
|
{
|
|
u32 cfg;
|
|
|
|
if (!pci_find_capability(dev, PCI_CAP_ID_HT))
|
|
return;
|
|
|
|
pci_read_config_dword(dev, 0x74, &cfg);
|
|
|
|
if (cfg & ((1 << 2) | (1 << 15))) {
|
|
pr_info("Rewriting IRQ routing register on MCP55\n");
|
|
cfg &= ~((1 << 2) | (1 << 15));
|
|
pci_write_config_dword(dev, 0x74, cfg);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
|
|
PCI_DEVICE_ID_NVIDIA_MCP55_BRIDGE_V0,
|
|
nvbridge_check_legacy_irq_routing);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
|
|
PCI_DEVICE_ID_NVIDIA_MCP55_BRIDGE_V4,
|
|
nvbridge_check_legacy_irq_routing);
|
|
|
|
static int ht_check_msi_mapping(struct pci_dev *dev)
|
|
{
|
|
int pos, ttl = PCI_FIND_CAP_TTL;
|
|
int found = 0;
|
|
|
|
/* Check if there is HT MSI cap or enabled on this device */
|
|
pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
|
|
while (pos && ttl--) {
|
|
u8 flags;
|
|
|
|
if (found < 1)
|
|
found = 1;
|
|
if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
|
|
&flags) == 0) {
|
|
if (flags & HT_MSI_FLAGS_ENABLE) {
|
|
if (found < 2) {
|
|
found = 2;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
pos = pci_find_next_ht_capability(dev, pos,
|
|
HT_CAPTYPE_MSI_MAPPING);
|
|
}
|
|
|
|
return found;
|
|
}
|
|
|
|
static int host_bridge_with_leaf(struct pci_dev *host_bridge)
|
|
{
|
|
struct pci_dev *dev;
|
|
int pos;
|
|
int i, dev_no;
|
|
int found = 0;
|
|
|
|
dev_no = host_bridge->devfn >> 3;
|
|
for (i = dev_no + 1; i < 0x20; i++) {
|
|
dev = pci_get_slot(host_bridge->bus, PCI_DEVFN(i, 0));
|
|
if (!dev)
|
|
continue;
|
|
|
|
/* found next host bridge? */
|
|
pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE);
|
|
if (pos != 0) {
|
|
pci_dev_put(dev);
|
|
break;
|
|
}
|
|
|
|
if (ht_check_msi_mapping(dev)) {
|
|
found = 1;
|
|
pci_dev_put(dev);
|
|
break;
|
|
}
|
|
pci_dev_put(dev);
|
|
}
|
|
|
|
return found;
|
|
}
|
|
|
|
#define PCI_HT_CAP_SLAVE_CTRL0 4 /* link control */
|
|
#define PCI_HT_CAP_SLAVE_CTRL1 8 /* link control to */
|
|
|
|
static int is_end_of_ht_chain(struct pci_dev *dev)
|
|
{
|
|
int pos, ctrl_off;
|
|
int end = 0;
|
|
u16 flags, ctrl;
|
|
|
|
pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE);
|
|
|
|
if (!pos)
|
|
goto out;
|
|
|
|
pci_read_config_word(dev, pos + PCI_CAP_FLAGS, &flags);
|
|
|
|
ctrl_off = ((flags >> 10) & 1) ?
|
|
PCI_HT_CAP_SLAVE_CTRL0 : PCI_HT_CAP_SLAVE_CTRL1;
|
|
pci_read_config_word(dev, pos + ctrl_off, &ctrl);
|
|
|
|
if (ctrl & (1 << 6))
|
|
end = 1;
|
|
|
|
out:
|
|
return end;
|
|
}
|
|
|
|
static void nv_ht_enable_msi_mapping(struct pci_dev *dev)
|
|
{
|
|
struct pci_dev *host_bridge;
|
|
int pos;
|
|
int i, dev_no;
|
|
int found = 0;
|
|
|
|
dev_no = dev->devfn >> 3;
|
|
for (i = dev_no; i >= 0; i--) {
|
|
host_bridge = pci_get_slot(dev->bus, PCI_DEVFN(i, 0));
|
|
if (!host_bridge)
|
|
continue;
|
|
|
|
pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
|
|
if (pos != 0) {
|
|
found = 1;
|
|
break;
|
|
}
|
|
pci_dev_put(host_bridge);
|
|
}
|
|
|
|
if (!found)
|
|
return;
|
|
|
|
/* don't enable end_device/host_bridge with leaf directly here */
|
|
if (host_bridge == dev && is_end_of_ht_chain(host_bridge) &&
|
|
host_bridge_with_leaf(host_bridge))
|
|
goto out;
|
|
|
|
/* root did that ! */
|
|
if (msi_ht_cap_enabled(host_bridge))
|
|
goto out;
|
|
|
|
ht_enable_msi_mapping(dev);
|
|
|
|
out:
|
|
pci_dev_put(host_bridge);
|
|
}
|
|
|
|
static void ht_disable_msi_mapping(struct pci_dev *dev)
|
|
{
|
|
int pos, ttl = PCI_FIND_CAP_TTL;
|
|
|
|
pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
|
|
while (pos && ttl--) {
|
|
u8 flags;
|
|
|
|
if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
|
|
&flags) == 0) {
|
|
pci_info(dev, "Disabling HT MSI Mapping\n");
|
|
|
|
pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
|
|
flags & ~HT_MSI_FLAGS_ENABLE);
|
|
}
|
|
pos = pci_find_next_ht_capability(dev, pos,
|
|
HT_CAPTYPE_MSI_MAPPING);
|
|
}
|
|
}
|
|
|
|
static void __nv_msi_ht_cap_quirk(struct pci_dev *dev, int all)
|
|
{
|
|
struct pci_dev *host_bridge;
|
|
int pos;
|
|
int found;
|
|
|
|
if (!pci_msi_enabled())
|
|
return;
|
|
|
|
/* check if there is HT MSI cap or enabled on this device */
|
|
found = ht_check_msi_mapping(dev);
|
|
|
|
/* no HT MSI CAP */
|
|
if (found == 0)
|
|
return;
|
|
|
|
/*
|
|
* HT MSI mapping should be disabled on devices that are below
|
|
* a non-Hypertransport host bridge. Locate the host bridge...
|
|
*/
|
|
host_bridge = pci_get_domain_bus_and_slot(pci_domain_nr(dev->bus), 0,
|
|
PCI_DEVFN(0, 0));
|
|
if (host_bridge == NULL) {
|
|
pci_warn(dev, "nv_msi_ht_cap_quirk didn't locate host bridge\n");
|
|
return;
|
|
}
|
|
|
|
pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
|
|
if (pos != 0) {
|
|
/* Host bridge is to HT */
|
|
if (found == 1) {
|
|
/* it is not enabled, try to enable it */
|
|
if (all)
|
|
ht_enable_msi_mapping(dev);
|
|
else
|
|
nv_ht_enable_msi_mapping(dev);
|
|
}
|
|
goto out;
|
|
}
|
|
|
|
/* HT MSI is not enabled */
|
|
if (found == 1)
|
|
goto out;
|
|
|
|
/* Host bridge is not to HT, disable HT MSI mapping on this device */
|
|
ht_disable_msi_mapping(dev);
|
|
|
|
out:
|
|
pci_dev_put(host_bridge);
|
|
}
|
|
|
|
static void nv_msi_ht_cap_quirk_all(struct pci_dev *dev)
|
|
{
|
|
return __nv_msi_ht_cap_quirk(dev, 1);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
|
|
|
|
static void nv_msi_ht_cap_quirk_leaf(struct pci_dev *dev)
|
|
{
|
|
return __nv_msi_ht_cap_quirk(dev, 0);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);
|
|
|
|
static void quirk_msi_intx_disable_bug(struct pci_dev *dev)
|
|
{
|
|
dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
|
|
}
|
|
|
|
static void quirk_msi_intx_disable_ati_bug(struct pci_dev *dev)
|
|
{
|
|
struct pci_dev *p;
|
|
|
|
/*
|
|
* SB700 MSI issue will be fixed at HW level from revision A21;
|
|
* we need check PCI REVISION ID of SMBus controller to get SB700
|
|
* revision.
|
|
*/
|
|
p = pci_get_device(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
|
|
NULL);
|
|
if (!p)
|
|
return;
|
|
|
|
if ((p->revision < 0x3B) && (p->revision >= 0x30))
|
|
dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
|
|
pci_dev_put(p);
|
|
}
|
|
|
|
static void quirk_msi_intx_disable_qca_bug(struct pci_dev *dev)
|
|
{
|
|
/* AR816X/AR817X/E210X MSI is fixed at HW level from revision 0x18 */
|
|
if (dev->revision < 0x18) {
|
|
pci_info(dev, "set MSI_INTX_DISABLE_BUG flag\n");
|
|
dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
|
|
PCI_DEVICE_ID_TIGON3_5780,
|
|
quirk_msi_intx_disable_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
|
|
PCI_DEVICE_ID_TIGON3_5780S,
|
|
quirk_msi_intx_disable_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
|
|
PCI_DEVICE_ID_TIGON3_5714,
|
|
quirk_msi_intx_disable_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
|
|
PCI_DEVICE_ID_TIGON3_5714S,
|
|
quirk_msi_intx_disable_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
|
|
PCI_DEVICE_ID_TIGON3_5715,
|
|
quirk_msi_intx_disable_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
|
|
PCI_DEVICE_ID_TIGON3_5715S,
|
|
quirk_msi_intx_disable_bug);
|
|
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390,
|
|
quirk_msi_intx_disable_ati_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391,
|
|
quirk_msi_intx_disable_ati_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392,
|
|
quirk_msi_intx_disable_ati_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393,
|
|
quirk_msi_intx_disable_ati_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394,
|
|
quirk_msi_intx_disable_ati_bug);
|
|
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4373,
|
|
quirk_msi_intx_disable_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4374,
|
|
quirk_msi_intx_disable_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375,
|
|
quirk_msi_intx_disable_bug);
|
|
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1062,
|
|
quirk_msi_intx_disable_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1063,
|
|
quirk_msi_intx_disable_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x2060,
|
|
quirk_msi_intx_disable_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x2062,
|
|
quirk_msi_intx_disable_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1073,
|
|
quirk_msi_intx_disable_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1083,
|
|
quirk_msi_intx_disable_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1090,
|
|
quirk_msi_intx_disable_qca_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1091,
|
|
quirk_msi_intx_disable_qca_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x10a0,
|
|
quirk_msi_intx_disable_qca_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x10a1,
|
|
quirk_msi_intx_disable_qca_bug);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0xe091,
|
|
quirk_msi_intx_disable_qca_bug);
|
|
|
|
/*
|
|
* Amazon's Annapurna Labs 1c36:0031 Root Ports don't support MSI-X, so it
|
|
* should be disabled on platforms where the device (mistakenly) advertises it.
|
|
*
|
|
* Notice that this quirk also disables MSI (which may work, but hasn't been
|
|
* tested), since currently there is no standard way to disable only MSI-X.
|
|
*
|
|
* The 0031 device id is reused for other non Root Port device types,
|
|
* therefore the quirk is registered for the PCI_CLASS_BRIDGE_PCI class.
|
|
*/
|
|
static void quirk_al_msi_disable(struct pci_dev *dev)
|
|
{
|
|
dev->no_msi = 1;
|
|
pci_warn(dev, "Disabling MSI/MSI-X\n");
|
|
}
|
|
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031,
|
|
PCI_CLASS_BRIDGE_PCI, 8, quirk_al_msi_disable);
|
|
#endif /* CONFIG_PCI_MSI */
|
|
|
|
/*
|
|
* Allow manual resource allocation for PCI hotplug bridges via
|
|
* pci=hpmemsize=nnM and pci=hpiosize=nnM parameters. For some PCI-PCI
|
|
* hotplug bridges, like PLX 6254 (former HINT HB6), kernel fails to
|
|
* allocate resources when hotplug device is inserted and PCI bus is
|
|
* rescanned.
|
|
*/
|
|
static void quirk_hotplug_bridge(struct pci_dev *dev)
|
|
{
|
|
dev->is_hotplug_bridge = 1;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HINT, 0x0020, quirk_hotplug_bridge);
|
|
|
|
/*
|
|
* This is a quirk for the Ricoh MMC controller found as a part of some
|
|
* multifunction chips.
|
|
*
|
|
* This is very similar and based on the ricoh_mmc driver written by
|
|
* Philip Langdale. Thank you for these magic sequences.
|
|
*
|
|
* These chips implement the four main memory card controllers (SD, MMC,
|
|
* MS, xD) and one or both of CardBus or FireWire.
|
|
*
|
|
* It happens that they implement SD and MMC support as separate
|
|
* controllers (and PCI functions). The Linux SDHCI driver supports MMC
|
|
* cards but the chip detects MMC cards in hardware and directs them to the
|
|
* MMC controller - so the SDHCI driver never sees them.
|
|
*
|
|
* To get around this, we must disable the useless MMC controller. At that
|
|
* point, the SDHCI controller will start seeing them. It seems to be the
|
|
* case that the relevant PCI registers to deactivate the MMC controller
|
|
* live on PCI function 0, which might be the CardBus controller or the
|
|
* FireWire controller, depending on the particular chip in question
|
|
*
|
|
* This has to be done early, because as soon as we disable the MMC controller
|
|
* other PCI functions shift up one level, e.g. function #2 becomes function
|
|
* #1, and this will confuse the PCI core.
|
|
*/
|
|
#ifdef CONFIG_MMC_RICOH_MMC
|
|
static void ricoh_mmc_fixup_rl5c476(struct pci_dev *dev)
|
|
{
|
|
u8 write_enable;
|
|
u8 write_target;
|
|
u8 disable;
|
|
|
|
/*
|
|
* Disable via CardBus interface
|
|
*
|
|
* This must be done via function #0
|
|
*/
|
|
if (PCI_FUNC(dev->devfn))
|
|
return;
|
|
|
|
pci_read_config_byte(dev, 0xB7, &disable);
|
|
if (disable & 0x02)
|
|
return;
|
|
|
|
pci_read_config_byte(dev, 0x8E, &write_enable);
|
|
pci_write_config_byte(dev, 0x8E, 0xAA);
|
|
pci_read_config_byte(dev, 0x8D, &write_target);
|
|
pci_write_config_byte(dev, 0x8D, 0xB7);
|
|
pci_write_config_byte(dev, 0xB7, disable | 0x02);
|
|
pci_write_config_byte(dev, 0x8E, write_enable);
|
|
pci_write_config_byte(dev, 0x8D, write_target);
|
|
|
|
pci_notice(dev, "proprietary Ricoh MMC controller disabled (via CardBus function)\n");
|
|
pci_notice(dev, "MMC cards are now supported by standard SDHCI controller\n");
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, ricoh_mmc_fixup_rl5c476);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, ricoh_mmc_fixup_rl5c476);
|
|
|
|
static void ricoh_mmc_fixup_r5c832(struct pci_dev *dev)
|
|
{
|
|
u8 write_enable;
|
|
u8 disable;
|
|
|
|
/*
|
|
* Disable via FireWire interface
|
|
*
|
|
* This must be done via function #0
|
|
*/
|
|
if (PCI_FUNC(dev->devfn))
|
|
return;
|
|
/*
|
|
* RICOH 0xe822 and 0xe823 SD/MMC card readers fail to recognize
|
|
* certain types of SD/MMC cards. Lowering the SD base clock
|
|
* frequency from 200Mhz to 50Mhz fixes this issue.
|
|
*
|
|
* 0x150 - SD2.0 mode enable for changing base clock
|
|
* frequency to 50Mhz
|
|
* 0xe1 - Base clock frequency
|
|
* 0x32 - 50Mhz new clock frequency
|
|
* 0xf9 - Key register for 0x150
|
|
* 0xfc - key register for 0xe1
|
|
*/
|
|
if (dev->device == PCI_DEVICE_ID_RICOH_R5CE822 ||
|
|
dev->device == PCI_DEVICE_ID_RICOH_R5CE823) {
|
|
pci_write_config_byte(dev, 0xf9, 0xfc);
|
|
pci_write_config_byte(dev, 0x150, 0x10);
|
|
pci_write_config_byte(dev, 0xf9, 0x00);
|
|
pci_write_config_byte(dev, 0xfc, 0x01);
|
|
pci_write_config_byte(dev, 0xe1, 0x32);
|
|
pci_write_config_byte(dev, 0xfc, 0x00);
|
|
|
|
pci_notice(dev, "MMC controller base frequency changed to 50Mhz.\n");
|
|
}
|
|
|
|
pci_read_config_byte(dev, 0xCB, &disable);
|
|
|
|
if (disable & 0x02)
|
|
return;
|
|
|
|
pci_read_config_byte(dev, 0xCA, &write_enable);
|
|
pci_write_config_byte(dev, 0xCA, 0x57);
|
|
pci_write_config_byte(dev, 0xCB, disable | 0x02);
|
|
pci_write_config_byte(dev, 0xCA, write_enable);
|
|
|
|
pci_notice(dev, "proprietary Ricoh MMC controller disabled (via FireWire function)\n");
|
|
pci_notice(dev, "MMC cards are now supported by standard SDHCI controller\n");
|
|
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
|
|
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
|
|
#endif /*CONFIG_MMC_RICOH_MMC*/
|
|
|
|
#ifdef CONFIG_DMAR_TABLE
|
|
#define VTUNCERRMSK_REG 0x1ac
|
|
#define VTD_MSK_SPEC_ERRORS (1 << 31)
|
|
/*
|
|
* This is a quirk for masking VT-d spec-defined errors to platform error
|
|
* handling logic. Without this, platforms using Intel 7500, 5500 chipsets
|
|
* (and the derivative chipsets like X58 etc) seem to generate NMI/SMI (based
|
|
* on the RAS config settings of the platform) when a VT-d fault happens.
|
|
* The resulting SMI caused the system to hang.
|
|
*
|
|
* VT-d spec-related errors are already handled by the VT-d OS code, so no
|
|
* need to report the same error through other channels.
|
|
*/
|
|
static void vtd_mask_spec_errors(struct pci_dev *dev)
|
|
{
|
|
u32 word;
|
|
|
|
pci_read_config_dword(dev, VTUNCERRMSK_REG, &word);
|
|
pci_write_config_dword(dev, VTUNCERRMSK_REG, word | VTD_MSK_SPEC_ERRORS);
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x342e, vtd_mask_spec_errors);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x3c28, vtd_mask_spec_errors);
|
|
#endif
|
|
|
|
static void fixup_ti816x_class(struct pci_dev *dev)
|
|
{
|
|
u32 class = dev->class;
|
|
|
|
/* TI 816x devices do not have class code set when in PCIe boot mode */
|
|
dev->class = PCI_CLASS_MULTIMEDIA_VIDEO << 8;
|
|
pci_info(dev, "PCI class overridden (%#08x -> %#08x)\n",
|
|
class, dev->class);
|
|
}
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_TI, 0xb800,
|
|
PCI_CLASS_NOT_DEFINED, 8, fixup_ti816x_class);
|
|
|
|
/*
|
|
* Some PCIe devices do not work reliably with the claimed maximum
|
|
* payload size supported.
|
|
*/
|
|
static void fixup_mpss_256(struct pci_dev *dev)
|
|
{
|
|
dev->pcie_mpss = 1; /* 256 bytes */
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SOLARFLARE,
|
|
PCI_DEVICE_ID_SOLARFLARE_SFC4000A_0, fixup_mpss_256);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SOLARFLARE,
|
|
PCI_DEVICE_ID_SOLARFLARE_SFC4000A_1, fixup_mpss_256);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SOLARFLARE,
|
|
PCI_DEVICE_ID_SOLARFLARE_SFC4000B, fixup_mpss_256);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ASMEDIA, 0x0612, fixup_mpss_256);
|
|
|
|
/*
|
|
* Intel 5000 and 5100 Memory controllers have an erratum with read completion
|
|
* coalescing (which is enabled by default on some BIOSes) and MPS of 256B.
|
|
* Since there is no way of knowing what the PCIe MPS on each fabric will be
|
|
* until all of the devices are discovered and buses walked, read completion
|
|
* coalescing must be disabled. Unfortunately, it cannot be re-enabled because
|
|
* it is possible to hotplug a device with MPS of 256B.
|
|
*/
|
|
static void quirk_intel_mc_errata(struct pci_dev *dev)
|
|
{
|
|
int err;
|
|
u16 rcc;
|
|
|
|
if (pcie_bus_config == PCIE_BUS_TUNE_OFF ||
|
|
pcie_bus_config == PCIE_BUS_DEFAULT)
|
|
return;
|
|
|
|
/*
|
|
* Intel erratum specifies bits to change but does not say what
|
|
* they are. Keeping them magical until such time as the registers
|
|
* and values can be explained.
|
|
*/
|
|
err = pci_read_config_word(dev, 0x48, &rcc);
|
|
if (err) {
|
|
pci_err(dev, "Error attempting to read the read completion coalescing register\n");
|
|
return;
|
|
}
|
|
|
|
if (!(rcc & (1 << 10)))
|
|
return;
|
|
|
|
rcc &= ~(1 << 10);
|
|
|
|
err = pci_write_config_word(dev, 0x48, rcc);
|
|
if (err) {
|
|
pci_err(dev, "Error attempting to write the read completion coalescing register\n");
|
|
return;
|
|
}
|
|
|
|
pr_info_once("Read completion coalescing disabled due to hardware erratum relating to 256B MPS\n");
|
|
}
|
|
/* Intel 5000 series memory controllers and ports 2-7 */
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25c0, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d0, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d4, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d8, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_mc_errata);
|
|
/* Intel 5100 series memory controllers and ports 2-7 */
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65c0, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e2, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e3, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e4, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e5, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e6, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e7, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f7, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f8, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f9, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65fa, quirk_intel_mc_errata);
|
|
|
|
/*
|
|
* Ivytown NTB BAR sizes are misreported by the hardware due to an erratum.
|
|
* To work around this, query the size it should be configured to by the
|
|
* device and modify the resource end to correspond to this new size.
|
|
*/
|
|
static void quirk_intel_ntb(struct pci_dev *dev)
|
|
{
|
|
int rc;
|
|
u8 val;
|
|
|
|
rc = pci_read_config_byte(dev, 0x00D0, &val);
|
|
if (rc)
|
|
return;
|
|
|
|
dev->resource[2].end = dev->resource[2].start + ((u64) 1 << val) - 1;
|
|
|
|
rc = pci_read_config_byte(dev, 0x00D1, &val);
|
|
if (rc)
|
|
return;
|
|
|
|
dev->resource[4].end = dev->resource[4].start + ((u64) 1 << val) - 1;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e08, quirk_intel_ntb);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e0d, quirk_intel_ntb);
|
|
|
|
/*
|
|
* Some BIOS implementations leave the Intel GPU interrupts enabled, even
|
|
* though no one is handling them (e.g., if the i915 driver is never
|
|
* loaded). Additionally the interrupt destination is not set up properly
|
|
* and the interrupt ends up -somewhere-.
|
|
*
|
|
* These spurious interrupts are "sticky" and the kernel disables the
|
|
* (shared) interrupt line after 100,000+ generated interrupts.
|
|
*
|
|
* Fix it by disabling the still enabled interrupts. This resolves crashes
|
|
* often seen on monitor unplug.
|
|
*/
|
|
#define I915_DEIER_REG 0x4400c
|
|
static void disable_igfx_irq(struct pci_dev *dev)
|
|
{
|
|
void __iomem *regs = pci_iomap(dev, 0, 0);
|
|
if (regs == NULL) {
|
|
pci_warn(dev, "igfx quirk: Can't iomap PCI device\n");
|
|
return;
|
|
}
|
|
|
|
/* Check if any interrupt line is still enabled */
|
|
if (readl(regs + I915_DEIER_REG) != 0) {
|
|
pci_warn(dev, "BIOS left Intel GPU interrupts enabled; disabling\n");
|
|
|
|
writel(0, regs + I915_DEIER_REG);
|
|
}
|
|
|
|
pci_iounmap(dev, regs);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0042, disable_igfx_irq);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0046, disable_igfx_irq);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x004a, disable_igfx_irq);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0102, disable_igfx_irq);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0106, disable_igfx_irq);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0152, disable_igfx_irq);
|
|
|
|
/*
|
|
* PCI devices which are on Intel chips can skip the 10ms delay
|
|
* before entering D3 mode.
|
|
*/
|
|
static void quirk_remove_d3hot_delay(struct pci_dev *dev)
|
|
{
|
|
dev->d3hot_delay = 0;
|
|
}
|
|
/* C600 Series devices do not need 10ms d3hot_delay */
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0412, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c00, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c0c, quirk_remove_d3hot_delay);
|
|
/* Lynxpoint-H PCH devices do not need 10ms d3hot_delay */
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c02, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c18, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c1c, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c20, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c22, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c26, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c2d, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c31, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3a, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3d, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c4e, quirk_remove_d3hot_delay);
|
|
/* Intel Cherrytrail devices do not need 10ms d3hot_delay */
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2280, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2298, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x229c, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b0, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b5, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b7, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b8, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22d8, quirk_remove_d3hot_delay);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22dc, quirk_remove_d3hot_delay);
|
|
|
|
/*
|
|
* Some devices may pass our check in pci_intx_mask_supported() if
|
|
* PCI_COMMAND_INTX_DISABLE works though they actually do not properly
|
|
* support this feature.
|
|
*/
|
|
static void quirk_broken_intx_masking(struct pci_dev *dev)
|
|
{
|
|
dev->broken_intx_masking = 1;
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x0030,
|
|
quirk_broken_intx_masking);
|
|
DECLARE_PCI_FIXUP_FINAL(0x1814, 0x0601, /* Ralink RT2800 802.11n PCI */
|
|
quirk_broken_intx_masking);
|
|
DECLARE_PCI_FIXUP_FINAL(0x1b7c, 0x0004, /* Ceton InfiniTV4 */
|
|
quirk_broken_intx_masking);
|
|
|
|
/*
|
|
* Realtek RTL8169 PCI Gigabit Ethernet Controller (rev 10)
|
|
* Subsystem: Realtek RTL8169/8110 Family PCI Gigabit Ethernet NIC
|
|
*
|
|
* RTL8110SC - Fails under PCI device assignment using DisINTx masking.
|
|
*/
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_REALTEK, 0x8169,
|
|
quirk_broken_intx_masking);
|
|
|
|
/*
|
|
* Intel i40e (XL710/X710) 10/20/40GbE NICs all have broken INTx masking,
|
|
* DisINTx can be set but the interrupt status bit is non-functional.
|
|
*/
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1572, quirk_broken_intx_masking);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1574, quirk_broken_intx_masking);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1580, quirk_broken_intx_masking);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1581, quirk_broken_intx_masking);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1583, quirk_broken_intx_masking);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1584, quirk_broken_intx_masking);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1585, quirk_broken_intx_masking);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1586, quirk_broken_intx_masking);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1587, quirk_broken_intx_masking);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1588, quirk_broken_intx_masking);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1589, quirk_broken_intx_masking);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x158a, quirk_broken_intx_masking);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x158b, quirk_broken_intx_masking);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x37d0, quirk_broken_intx_masking);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x37d1, quirk_broken_intx_masking);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x37d2, quirk_broken_intx_masking);
|
|
|
|
static u16 mellanox_broken_intx_devs[] = {
|
|
PCI_DEVICE_ID_MELLANOX_HERMON_SDR,
|
|
PCI_DEVICE_ID_MELLANOX_HERMON_DDR,
|
|
PCI_DEVICE_ID_MELLANOX_HERMON_QDR,
|
|
PCI_DEVICE_ID_MELLANOX_HERMON_DDR_GEN2,
|
|
PCI_DEVICE_ID_MELLANOX_HERMON_QDR_GEN2,
|
|
PCI_DEVICE_ID_MELLANOX_HERMON_EN,
|
|
PCI_DEVICE_ID_MELLANOX_HERMON_EN_GEN2,
|
|
PCI_DEVICE_ID_MELLANOX_CONNECTX_EN,
|
|
PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_T_GEN2,
|
|
PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_GEN2,
|
|
PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_5_GEN2,
|
|
PCI_DEVICE_ID_MELLANOX_CONNECTX2,
|
|
PCI_DEVICE_ID_MELLANOX_CONNECTX3,
|
|
PCI_DEVICE_ID_MELLANOX_CONNECTX3_PRO,
|
|
};
|
|
|
|
#define CONNECTX_4_CURR_MAX_MINOR 99
|
|
#define CONNECTX_4_INTX_SUPPORT_MINOR 14
|
|
|
|
/*
|
|
* Check ConnectX-4/LX FW version to see if it supports legacy interrupts.
|
|
* If so, don't mark it as broken.
|
|
* FW minor > 99 means older FW version format and no INTx masking support.
|
|
* FW minor < 14 means new FW version format and no INTx masking support.
|
|
*/
|
|
static void mellanox_check_broken_intx_masking(struct pci_dev *pdev)
|
|
{
|
|
__be32 __iomem *fw_ver;
|
|
u16 fw_major;
|
|
u16 fw_minor;
|
|
u16 fw_subminor;
|
|
u32 fw_maj_min;
|
|
u32 fw_sub_min;
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(mellanox_broken_intx_devs); i++) {
|
|
if (pdev->device == mellanox_broken_intx_devs[i]) {
|
|
pdev->broken_intx_masking = 1;
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Getting here means Connect-IB cards and up. Connect-IB has no INTx
|
|
* support so shouldn't be checked further
|
|
*/
|
|
if (pdev->device == PCI_DEVICE_ID_MELLANOX_CONNECTIB)
|
|
return;
|
|
|
|
if (pdev->device != PCI_DEVICE_ID_MELLANOX_CONNECTX4 &&
|
|
pdev->device != PCI_DEVICE_ID_MELLANOX_CONNECTX4_LX)
|
|
return;
|
|
|
|
/* For ConnectX-4 and ConnectX-4LX, need to check FW support */
|
|
if (pci_enable_device_mem(pdev)) {
|
|
pci_warn(pdev, "Can't enable device memory\n");
|
|
return;
|
|
}
|
|
|
|
fw_ver = ioremap(pci_resource_start(pdev, 0), 4);
|
|
if (!fw_ver) {
|
|
pci_warn(pdev, "Can't map ConnectX-4 initialization segment\n");
|
|
goto out;
|
|
}
|
|
|
|
/* Reading from resource space should be 32b aligned */
|
|
fw_maj_min = ioread32be(fw_ver);
|
|
fw_sub_min = ioread32be(fw_ver + 1);
|
|
fw_major = fw_maj_min & 0xffff;
|
|
fw_minor = fw_maj_min >> 16;
|
|
fw_subminor = fw_sub_min & 0xffff;
|
|
if (fw_minor > CONNECTX_4_CURR_MAX_MINOR ||
|
|
fw_minor < CONNECTX_4_INTX_SUPPORT_MINOR) {
|
|
pci_warn(pdev, "ConnectX-4: FW %u.%u.%u doesn't support INTx masking, disabling. Please upgrade FW to %d.14.1100 and up for INTx support\n",
|
|
fw_major, fw_minor, fw_subminor, pdev->device ==
|
|
PCI_DEVICE_ID_MELLANOX_CONNECTX4 ? 12 : 14);
|
|
pdev->broken_intx_masking = 1;
|
|
}
|
|
|
|
iounmap(fw_ver);
|
|
|
|
out:
|
|
pci_disable_device(pdev);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX, PCI_ANY_ID,
|
|
mellanox_check_broken_intx_masking);
|
|
|
|
static void quirk_no_bus_reset(struct pci_dev *dev)
|
|
{
|
|
dev->dev_flags |= PCI_DEV_FLAGS_NO_BUS_RESET;
|
|
}
|
|
|
|
/*
|
|
* Some NVIDIA GPU devices do not work with bus reset, SBR needs to be
|
|
* prevented for those affected devices.
|
|
*/
|
|
static void quirk_nvidia_no_bus_reset(struct pci_dev *dev)
|
|
{
|
|
if ((dev->device & 0xffc0) == 0x2340)
|
|
quirk_no_bus_reset(dev);
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
|
|
quirk_nvidia_no_bus_reset);
|
|
|
|
/*
|
|
* Some Atheros AR9xxx and QCA988x chips do not behave after a bus reset.
|
|
* The device will throw a Link Down error on AER-capable systems and
|
|
* regardless of AER, config space of the device is never accessible again
|
|
* and typically causes the system to hang or reset when access is attempted.
|
|
* https://lore.kernel.org/r/20140923210318.498dacbd@dualc.maya.org/
|
|
*/
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0032, quirk_no_bus_reset);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003c, quirk_no_bus_reset);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0033, quirk_no_bus_reset);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0034, quirk_no_bus_reset);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003e, quirk_no_bus_reset);
|
|
|
|
/*
|
|
* Root port on some Cavium CN8xxx chips do not successfully complete a bus
|
|
* reset when used with certain child devices. After the reset, config
|
|
* accesses to the child may fail.
|
|
*/
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_CAVIUM, 0xa100, quirk_no_bus_reset);
|
|
|
|
/*
|
|
* Some TI KeyStone C667X devices do not support bus/hot reset. The PCIESS
|
|
* automatically disables LTSSM when Secondary Bus Reset is received and
|
|
* the device stops working. Prevent bus reset for these devices. With
|
|
* this change, the device can be assigned to VMs with VFIO, but it will
|
|
* leak state between VMs. Reference
|
|
* https://e2e.ti.com/support/processors/f/791/t/954382
|
|
*/
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TI, 0xb005, quirk_no_bus_reset);
|
|
|
|
static void quirk_no_pm_reset(struct pci_dev *dev)
|
|
{
|
|
/*
|
|
* We can't do a bus reset on root bus devices, but an ineffective
|
|
* PM reset may be better than nothing.
|
|
*/
|
|
if (!pci_is_root_bus(dev->bus))
|
|
dev->dev_flags |= PCI_DEV_FLAGS_NO_PM_RESET;
|
|
}
|
|
|
|
/*
|
|
* Some AMD/ATI GPUS (HD8570 - Oland) report that a D3hot->D0 transition
|
|
* causes a reset (i.e., they advertise NoSoftRst-). This transition seems
|
|
* to have no effect on the device: it retains the framebuffer contents and
|
|
* monitor sync. Advertising this support makes other layers, like VFIO,
|
|
* assume pci_reset_function() is viable for this device. Mark it as
|
|
* unavailable to skip it when testing reset methods.
|
|
*/
|
|
DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_ATI, PCI_ANY_ID,
|
|
PCI_CLASS_DISPLAY_VGA, 8, quirk_no_pm_reset);
|
|
|
|
/*
|
|
* Spectrum-{1,2,3,4} devices report that a D3hot->D0 transition causes a reset
|
|
* (i.e., they advertise NoSoftRst-). However, this transition does not have
|
|
* any effect on the device: It continues to be operational and network ports
|
|
* remain up. Advertising this support makes it seem as if a PM reset is viable
|
|
* for these devices. Mark it as unavailable to skip it when testing reset
|
|
* methods.
|
|
*/
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MELLANOX, 0xcb84, quirk_no_pm_reset);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MELLANOX, 0xcf6c, quirk_no_pm_reset);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MELLANOX, 0xcf70, quirk_no_pm_reset);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MELLANOX, 0xcf80, quirk_no_pm_reset);
|
|
|
|
/*
|
|
* Thunderbolt controllers with broken MSI hotplug signaling:
|
|
* Entire 1st generation (Light Ridge, Eagle Ridge, Light Peak) and part
|
|
* of the 2nd generation (Cactus Ridge 4C up to revision 1, Port Ridge).
|
|
*/
|
|
static void quirk_thunderbolt_hotplug_msi(struct pci_dev *pdev)
|
|
{
|
|
if (pdev->is_hotplug_bridge &&
|
|
(pdev->device != PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C ||
|
|
pdev->revision <= 1))
|
|
pdev->no_msi = 1;
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LIGHT_RIDGE,
|
|
quirk_thunderbolt_hotplug_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EAGLE_RIDGE,
|
|
quirk_thunderbolt_hotplug_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LIGHT_PEAK,
|
|
quirk_thunderbolt_hotplug_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C,
|
|
quirk_thunderbolt_hotplug_msi);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PORT_RIDGE,
|
|
quirk_thunderbolt_hotplug_msi);
|
|
|
|
#ifdef CONFIG_ACPI
|
|
/*
|
|
* Apple: Shutdown Cactus Ridge Thunderbolt controller.
|
|
*
|
|
* On Apple hardware the Cactus Ridge Thunderbolt controller needs to be
|
|
* shutdown before suspend. Otherwise the native host interface (NHI) will not
|
|
* be present after resume if a device was plugged in before suspend.
|
|
*
|
|
* The Thunderbolt controller consists of a PCIe switch with downstream
|
|
* bridges leading to the NHI and to the tunnel PCI bridges.
|
|
*
|
|
* This quirk cuts power to the whole chip. Therefore we have to apply it
|
|
* during suspend_noirq of the upstream bridge.
|
|
*
|
|
* Power is automagically restored before resume. No action is needed.
|
|
*/
|
|
static void quirk_apple_poweroff_thunderbolt(struct pci_dev *dev)
|
|
{
|
|
acpi_handle bridge, SXIO, SXFP, SXLV;
|
|
|
|
if (!x86_apple_machine)
|
|
return;
|
|
if (pci_pcie_type(dev) != PCI_EXP_TYPE_UPSTREAM)
|
|
return;
|
|
|
|
/*
|
|
* SXIO/SXFP/SXLF turns off power to the Thunderbolt controller.
|
|
* We don't know how to turn it back on again, but firmware does,
|
|
* so we can only use SXIO/SXFP/SXLF if we're suspending via
|
|
* firmware.
|
|
*/
|
|
if (!pm_suspend_via_firmware())
|
|
return;
|
|
|
|
bridge = ACPI_HANDLE(&dev->dev);
|
|
if (!bridge)
|
|
return;
|
|
|
|
/*
|
|
* SXIO and SXLV are present only on machines requiring this quirk.
|
|
* Thunderbolt bridges in external devices might have the same
|
|
* device ID as those on the host, but they will not have the
|
|
* associated ACPI methods. This implicitly checks that we are at
|
|
* the right bridge.
|
|
*/
|
|
if (ACPI_FAILURE(acpi_get_handle(bridge, "DSB0.NHI0.SXIO", &SXIO))
|
|
|| ACPI_FAILURE(acpi_get_handle(bridge, "DSB0.NHI0.SXFP", &SXFP))
|
|
|| ACPI_FAILURE(acpi_get_handle(bridge, "DSB0.NHI0.SXLV", &SXLV)))
|
|
return;
|
|
pci_info(dev, "quirk: cutting power to Thunderbolt controller...\n");
|
|
|
|
/* magic sequence */
|
|
acpi_execute_simple_method(SXIO, NULL, 1);
|
|
acpi_execute_simple_method(SXFP, NULL, 0);
|
|
msleep(300);
|
|
acpi_execute_simple_method(SXLV, NULL, 0);
|
|
acpi_execute_simple_method(SXIO, NULL, 0);
|
|
acpi_execute_simple_method(SXLV, NULL, 0);
|
|
}
|
|
DECLARE_PCI_FIXUP_SUSPEND_LATE(PCI_VENDOR_ID_INTEL,
|
|
PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C,
|
|
quirk_apple_poweroff_thunderbolt);
|
|
#endif
|
|
|
|
/*
|
|
* Following are device-specific reset methods which can be used to
|
|
* reset a single function if other methods (e.g. FLR, PM D0->D3) are
|
|
* not available.
|
|
*/
|
|
static int reset_intel_82599_sfp_virtfn(struct pci_dev *dev, bool probe)
|
|
{
|
|
/*
|
|
* http://www.intel.com/content/dam/doc/datasheet/82599-10-gbe-controller-datasheet.pdf
|
|
*
|
|
* The 82599 supports FLR on VFs, but FLR support is reported only
|
|
* in the PF DEVCAP (sec 9.3.10.4), not in the VF DEVCAP (sec 9.5).
|
|
* Thus we must call pcie_flr() directly without first checking if it is
|
|
* supported.
|
|
*/
|
|
if (!probe)
|
|
pcie_flr(dev);
|
|
return 0;
|
|
}
|
|
|
|
#define SOUTH_CHICKEN2 0xc2004
|
|
#define PCH_PP_STATUS 0xc7200
|
|
#define PCH_PP_CONTROL 0xc7204
|
|
#define MSG_CTL 0x45010
|
|
#define NSDE_PWR_STATE 0xd0100
|
|
#define IGD_OPERATION_TIMEOUT 10000 /* set timeout 10 seconds */
|
|
|
|
static int reset_ivb_igd(struct pci_dev *dev, bool probe)
|
|
{
|
|
void __iomem *mmio_base;
|
|
unsigned long timeout;
|
|
u32 val;
|
|
|
|
if (probe)
|
|
return 0;
|
|
|
|
mmio_base = pci_iomap(dev, 0, 0);
|
|
if (!mmio_base)
|
|
return -ENOMEM;
|
|
|
|
iowrite32(0x00000002, mmio_base + MSG_CTL);
|
|
|
|
/*
|
|
* Clobbering SOUTH_CHICKEN2 register is fine only if the next
|
|
* driver loaded sets the right bits. However, this's a reset and
|
|
* the bits have been set by i915 previously, so we clobber
|
|
* SOUTH_CHICKEN2 register directly here.
|
|
*/
|
|
iowrite32(0x00000005, mmio_base + SOUTH_CHICKEN2);
|
|
|
|
val = ioread32(mmio_base + PCH_PP_CONTROL) & 0xfffffffe;
|
|
iowrite32(val, mmio_base + PCH_PP_CONTROL);
|
|
|
|
timeout = jiffies + msecs_to_jiffies(IGD_OPERATION_TIMEOUT);
|
|
do {
|
|
val = ioread32(mmio_base + PCH_PP_STATUS);
|
|
if ((val & 0xb0000000) == 0)
|
|
goto reset_complete;
|
|
msleep(10);
|
|
} while (time_before(jiffies, timeout));
|
|
pci_warn(dev, "timeout during reset\n");
|
|
|
|
reset_complete:
|
|
iowrite32(0x00000002, mmio_base + NSDE_PWR_STATE);
|
|
|
|
pci_iounmap(dev, mmio_base);
|
|
return 0;
|
|
}
|
|
|
|
/* Device-specific reset method for Chelsio T4-based adapters */
|
|
static int reset_chelsio_generic_dev(struct pci_dev *dev, bool probe)
|
|
{
|
|
u16 old_command;
|
|
u16 msix_flags;
|
|
|
|
/*
|
|
* If this isn't a Chelsio T4-based device, return -ENOTTY indicating
|
|
* that we have no device-specific reset method.
|
|
*/
|
|
if ((dev->device & 0xf000) != 0x4000)
|
|
return -ENOTTY;
|
|
|
|
/*
|
|
* If this is the "probe" phase, return 0 indicating that we can
|
|
* reset this device.
|
|
*/
|
|
if (probe)
|
|
return 0;
|
|
|
|
/*
|
|
* T4 can wedge if there are DMAs in flight within the chip and Bus
|
|
* Master has been disabled. We need to have it on till the Function
|
|
* Level Reset completes. (BUS_MASTER is disabled in
|
|
* pci_reset_function()).
|
|
*/
|
|
pci_read_config_word(dev, PCI_COMMAND, &old_command);
|
|
pci_write_config_word(dev, PCI_COMMAND,
|
|
old_command | PCI_COMMAND_MASTER);
|
|
|
|
/*
|
|
* Perform the actual device function reset, saving and restoring
|
|
* configuration information around the reset.
|
|
*/
|
|
pci_save_state(dev);
|
|
|
|
/*
|
|
* T4 also suffers a Head-Of-Line blocking problem if MSI-X interrupts
|
|
* are disabled when an MSI-X interrupt message needs to be delivered.
|
|
* So we briefly re-enable MSI-X interrupts for the duration of the
|
|
* FLR. The pci_restore_state() below will restore the original
|
|
* MSI-X state.
|
|
*/
|
|
pci_read_config_word(dev, dev->msix_cap+PCI_MSIX_FLAGS, &msix_flags);
|
|
if ((msix_flags & PCI_MSIX_FLAGS_ENABLE) == 0)
|
|
pci_write_config_word(dev, dev->msix_cap+PCI_MSIX_FLAGS,
|
|
msix_flags |
|
|
PCI_MSIX_FLAGS_ENABLE |
|
|
PCI_MSIX_FLAGS_MASKALL);
|
|
|
|
pcie_flr(dev);
|
|
|
|
/*
|
|
* Restore the configuration information (BAR values, etc.) including
|
|
* the original PCI Configuration Space Command word, and return
|
|
* success.
|
|
*/
|
|
pci_restore_state(dev);
|
|
pci_write_config_word(dev, PCI_COMMAND, old_command);
|
|
return 0;
|
|
}
|
|
|
|
#define PCI_DEVICE_ID_INTEL_82599_SFP_VF 0x10ed
|
|
#define PCI_DEVICE_ID_INTEL_IVB_M_VGA 0x0156
|
|
#define PCI_DEVICE_ID_INTEL_IVB_M2_VGA 0x0166
|
|
|
|
/*
|
|
* The Samsung SM961/PM961 controller can sometimes enter a fatal state after
|
|
* FLR where config space reads from the device return -1. We seem to be
|
|
* able to avoid this condition if we disable the NVMe controller prior to
|
|
* FLR. This quirk is generic for any NVMe class device requiring similar
|
|
* assistance to quiesce the device prior to FLR.
|
|
*
|
|
* NVMe specification: https://nvmexpress.org/resources/specifications/
|
|
* Revision 1.0e:
|
|
* Chapter 2: Required and optional PCI config registers
|
|
* Chapter 3: NVMe control registers
|
|
* Chapter 7.3: Reset behavior
|
|
*/
|
|
static int nvme_disable_and_flr(struct pci_dev *dev, bool probe)
|
|
{
|
|
void __iomem *bar;
|
|
u16 cmd;
|
|
u32 cfg;
|
|
|
|
if (dev->class != PCI_CLASS_STORAGE_EXPRESS ||
|
|
pcie_reset_flr(dev, PCI_RESET_PROBE) || !pci_resource_start(dev, 0))
|
|
return -ENOTTY;
|
|
|
|
if (probe)
|
|
return 0;
|
|
|
|
bar = pci_iomap(dev, 0, NVME_REG_CC + sizeof(cfg));
|
|
if (!bar)
|
|
return -ENOTTY;
|
|
|
|
pci_read_config_word(dev, PCI_COMMAND, &cmd);
|
|
pci_write_config_word(dev, PCI_COMMAND, cmd | PCI_COMMAND_MEMORY);
|
|
|
|
cfg = readl(bar + NVME_REG_CC);
|
|
|
|
/* Disable controller if enabled */
|
|
if (cfg & NVME_CC_ENABLE) {
|
|
u32 cap = readl(bar + NVME_REG_CAP);
|
|
unsigned long timeout;
|
|
|
|
/*
|
|
* Per nvme_disable_ctrl() skip shutdown notification as it
|
|
* could complete commands to the admin queue. We only intend
|
|
* to quiesce the device before reset.
|
|
*/
|
|
cfg &= ~(NVME_CC_SHN_MASK | NVME_CC_ENABLE);
|
|
|
|
writel(cfg, bar + NVME_REG_CC);
|
|
|
|
/*
|
|
* Some controllers require an additional delay here, see
|
|
* NVME_QUIRK_DELAY_BEFORE_CHK_RDY. None of those are yet
|
|
* supported by this quirk.
|
|
*/
|
|
|
|
/* Cap register provides max timeout in 500ms increments */
|
|
timeout = ((NVME_CAP_TIMEOUT(cap) + 1) * HZ / 2) + jiffies;
|
|
|
|
for (;;) {
|
|
u32 status = readl(bar + NVME_REG_CSTS);
|
|
|
|
/* Ready status becomes zero on disable complete */
|
|
if (!(status & NVME_CSTS_RDY))
|
|
break;
|
|
|
|
msleep(100);
|
|
|
|
if (time_after(jiffies, timeout)) {
|
|
pci_warn(dev, "Timeout waiting for NVMe ready status to clear after disable\n");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
pci_iounmap(dev, bar);
|
|
|
|
pcie_flr(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Intel DC P3700 NVMe controller will timeout waiting for ready status
|
|
* to change after NVMe enable if the driver starts interacting with the
|
|
* device too soon after FLR. A 250ms delay after FLR has heuristically
|
|
* proven to produce reliably working results for device assignment cases.
|
|
*/
|
|
static int delay_250ms_after_flr(struct pci_dev *dev, bool probe)
|
|
{
|
|
if (probe)
|
|
return pcie_reset_flr(dev, PCI_RESET_PROBE);
|
|
|
|
pcie_reset_flr(dev, PCI_RESET_DO_RESET);
|
|
|
|
msleep(250);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define PCI_DEVICE_ID_HINIC_VF 0x375E
|
|
#define HINIC_VF_FLR_TYPE 0x1000
|
|
#define HINIC_VF_FLR_CAP_BIT (1UL << 30)
|
|
#define HINIC_VF_OP 0xE80
|
|
#define HINIC_VF_FLR_PROC_BIT (1UL << 18)
|
|
#define HINIC_OPERATION_TIMEOUT 15000 /* 15 seconds */
|
|
|
|
/* Device-specific reset method for Huawei Intelligent NIC virtual functions */
|
|
static int reset_hinic_vf_dev(struct pci_dev *pdev, bool probe)
|
|
{
|
|
unsigned long timeout;
|
|
void __iomem *bar;
|
|
u32 val;
|
|
|
|
if (probe)
|
|
return 0;
|
|
|
|
bar = pci_iomap(pdev, 0, 0);
|
|
if (!bar)
|
|
return -ENOTTY;
|
|
|
|
/* Get and check firmware capabilities */
|
|
val = ioread32be(bar + HINIC_VF_FLR_TYPE);
|
|
if (!(val & HINIC_VF_FLR_CAP_BIT)) {
|
|
pci_iounmap(pdev, bar);
|
|
return -ENOTTY;
|
|
}
|
|
|
|
/* Set HINIC_VF_FLR_PROC_BIT for the start of FLR */
|
|
val = ioread32be(bar + HINIC_VF_OP);
|
|
val = val | HINIC_VF_FLR_PROC_BIT;
|
|
iowrite32be(val, bar + HINIC_VF_OP);
|
|
|
|
pcie_flr(pdev);
|
|
|
|
/*
|
|
* The device must recapture its Bus and Device Numbers after FLR
|
|
* in order generate Completions. Issue a config write to let the
|
|
* device capture this information.
|
|
*/
|
|
pci_write_config_word(pdev, PCI_VENDOR_ID, 0);
|
|
|
|
/* Firmware clears HINIC_VF_FLR_PROC_BIT when reset is complete */
|
|
timeout = jiffies + msecs_to_jiffies(HINIC_OPERATION_TIMEOUT);
|
|
do {
|
|
val = ioread32be(bar + HINIC_VF_OP);
|
|
if (!(val & HINIC_VF_FLR_PROC_BIT))
|
|
goto reset_complete;
|
|
msleep(20);
|
|
} while (time_before(jiffies, timeout));
|
|
|
|
val = ioread32be(bar + HINIC_VF_OP);
|
|
if (!(val & HINIC_VF_FLR_PROC_BIT))
|
|
goto reset_complete;
|
|
|
|
pci_warn(pdev, "Reset dev timeout, FLR ack reg: %#010x\n", val);
|
|
|
|
reset_complete:
|
|
pci_iounmap(pdev, bar);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct pci_dev_reset_methods pci_dev_reset_methods[] = {
|
|
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82599_SFP_VF,
|
|
reset_intel_82599_sfp_virtfn },
|
|
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IVB_M_VGA,
|
|
reset_ivb_igd },
|
|
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IVB_M2_VGA,
|
|
reset_ivb_igd },
|
|
{ PCI_VENDOR_ID_SAMSUNG, 0xa804, nvme_disable_and_flr },
|
|
{ PCI_VENDOR_ID_INTEL, 0x0953, delay_250ms_after_flr },
|
|
{ PCI_VENDOR_ID_INTEL, 0x0a54, delay_250ms_after_flr },
|
|
{ PCI_VENDOR_ID_CHELSIO, PCI_ANY_ID,
|
|
reset_chelsio_generic_dev },
|
|
{ PCI_VENDOR_ID_HUAWEI, PCI_DEVICE_ID_HINIC_VF,
|
|
reset_hinic_vf_dev },
|
|
{ 0 }
|
|
};
|
|
|
|
/*
|
|
* These device-specific reset methods are here rather than in a driver
|
|
* because when a host assigns a device to a guest VM, the host may need
|
|
* to reset the device but probably doesn't have a driver for it.
|
|
*/
|
|
int pci_dev_specific_reset(struct pci_dev *dev, bool probe)
|
|
{
|
|
const struct pci_dev_reset_methods *i;
|
|
|
|
for (i = pci_dev_reset_methods; i->reset; i++) {
|
|
if ((i->vendor == dev->vendor ||
|
|
i->vendor == (u16)PCI_ANY_ID) &&
|
|
(i->device == dev->device ||
|
|
i->device == (u16)PCI_ANY_ID))
|
|
return i->reset(dev, probe);
|
|
}
|
|
|
|
return -ENOTTY;
|
|
}
|
|
|
|
static void quirk_dma_func0_alias(struct pci_dev *dev)
|
|
{
|
|
if (PCI_FUNC(dev->devfn) != 0)
|
|
pci_add_dma_alias(dev, PCI_DEVFN(PCI_SLOT(dev->devfn), 0), 1);
|
|
}
|
|
|
|
/*
|
|
* https://bugzilla.redhat.com/show_bug.cgi?id=605888
|
|
*
|
|
* Some Ricoh devices use function 0 as the PCIe requester ID for DMA.
|
|
*/
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_RICOH, 0xe832, quirk_dma_func0_alias);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_RICOH, 0xe476, quirk_dma_func0_alias);
|
|
|
|
static void quirk_dma_func1_alias(struct pci_dev *dev)
|
|
{
|
|
if (PCI_FUNC(dev->devfn) != 1)
|
|
pci_add_dma_alias(dev, PCI_DEVFN(PCI_SLOT(dev->devfn), 1), 1);
|
|
}
|
|
|
|
/*
|
|
* Marvell 88SE9123 uses function 1 as the requester ID for DMA. In some
|
|
* SKUs function 1 is present and is a legacy IDE controller, in other
|
|
* SKUs this function is not present, making this a ghost requester.
|
|
* https://bugzilla.kernel.org/show_bug.cgi?id=42679
|
|
*/
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9120,
|
|
quirk_dma_func1_alias);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9123,
|
|
quirk_dma_func1_alias);
|
|
/* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c136 */
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9125,
|
|
quirk_dma_func1_alias);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9128,
|
|
quirk_dma_func1_alias);
|
|
/* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c14 */
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9130,
|
|
quirk_dma_func1_alias);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9170,
|
|
quirk_dma_func1_alias);
|
|
/* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c47 + c57 */
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9172,
|
|
quirk_dma_func1_alias);
|
|
/* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c59 */
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x917a,
|
|
quirk_dma_func1_alias);
|
|
/* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c78 */
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9182,
|
|
quirk_dma_func1_alias);
|
|
/* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c134 */
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9183,
|
|
quirk_dma_func1_alias);
|
|
/* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c46 */
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0,
|
|
quirk_dma_func1_alias);
|
|
/* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c135 */
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9215,
|
|
quirk_dma_func1_alias);
|
|
/* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c127 */
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9220,
|
|
quirk_dma_func1_alias);
|
|
/* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c49 */
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9230,
|
|
quirk_dma_func1_alias);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9235,
|
|
quirk_dma_func1_alias);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TTI, 0x0642,
|
|
quirk_dma_func1_alias);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TTI, 0x0645,
|
|
quirk_dma_func1_alias);
|
|
/* https://bugs.gentoo.org/show_bug.cgi?id=497630 */
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_JMICRON,
|
|
PCI_DEVICE_ID_JMICRON_JMB388_ESD,
|
|
quirk_dma_func1_alias);
|
|
/* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c117 */
|
|
DECLARE_PCI_FIXUP_HEADER(0x1c28, /* Lite-On */
|
|
0x0122, /* Plextor M6E (Marvell 88SS9183)*/
|
|
quirk_dma_func1_alias);
|
|
|
|
/*
|
|
* Some devices DMA with the wrong devfn, not just the wrong function.
|
|
* quirk_fixed_dma_alias() uses this table to create fixed aliases, where
|
|
* the alias is "fixed" and independent of the device devfn.
|
|
*
|
|
* For example, the Adaptec 3405 is a PCIe card with an Intel 80333 I/O
|
|
* processor. To software, this appears as a PCIe-to-PCI/X bridge with a
|
|
* single device on the secondary bus. In reality, the single exposed
|
|
* device at 0e.0 is the Address Translation Unit (ATU) of the controller
|
|
* that provides a bridge to the internal bus of the I/O processor. The
|
|
* controller supports private devices, which can be hidden from PCI config
|
|
* space. In the case of the Adaptec 3405, a private device at 01.0
|
|
* appears to be the DMA engine, which therefore needs to become a DMA
|
|
* alias for the device.
|
|
*/
|
|
static const struct pci_device_id fixed_dma_alias_tbl[] = {
|
|
{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x0285,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x02bb), /* Adaptec 3405 */
|
|
.driver_data = PCI_DEVFN(1, 0) },
|
|
{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x0285,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x02bc), /* Adaptec 3805 */
|
|
.driver_data = PCI_DEVFN(1, 0) },
|
|
{ 0 }
|
|
};
|
|
|
|
static void quirk_fixed_dma_alias(struct pci_dev *dev)
|
|
{
|
|
const struct pci_device_id *id;
|
|
|
|
id = pci_match_id(fixed_dma_alias_tbl, dev);
|
|
if (id)
|
|
pci_add_dma_alias(dev, id->driver_data, 1);
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ADAPTEC2, 0x0285, quirk_fixed_dma_alias);
|
|
|
|
/*
|
|
* A few PCIe-to-PCI bridges fail to expose a PCIe capability, resulting in
|
|
* using the wrong DMA alias for the device. Some of these devices can be
|
|
* used as either forward or reverse bridges, so we need to test whether the
|
|
* device is operating in the correct mode. We could probably apply this
|
|
* quirk to PCI_ANY_ID, but for now we'll just use known offenders. The test
|
|
* is for a non-root, non-PCIe bridge where the upstream device is PCIe and
|
|
* is not a PCIe-to-PCI bridge, then @pdev is actually a PCIe-to-PCI bridge.
|
|
*/
|
|
static void quirk_use_pcie_bridge_dma_alias(struct pci_dev *pdev)
|
|
{
|
|
if (!pci_is_root_bus(pdev->bus) &&
|
|
pdev->hdr_type == PCI_HEADER_TYPE_BRIDGE &&
|
|
!pci_is_pcie(pdev) && pci_is_pcie(pdev->bus->self) &&
|
|
pci_pcie_type(pdev->bus->self) != PCI_EXP_TYPE_PCI_BRIDGE)
|
|
pdev->dev_flags |= PCI_DEV_FLAG_PCIE_BRIDGE_ALIAS;
|
|
}
|
|
/* ASM1083/1085, https://bugzilla.kernel.org/show_bug.cgi?id=44881#c46 */
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ASMEDIA, 0x1080,
|
|
quirk_use_pcie_bridge_dma_alias);
|
|
/* Tundra 8113, https://bugzilla.kernel.org/show_bug.cgi?id=44881#c43 */
|
|
DECLARE_PCI_FIXUP_HEADER(0x10e3, 0x8113, quirk_use_pcie_bridge_dma_alias);
|
|
/* ITE 8892, https://bugzilla.kernel.org/show_bug.cgi?id=73551 */
|
|
DECLARE_PCI_FIXUP_HEADER(0x1283, 0x8892, quirk_use_pcie_bridge_dma_alias);
|
|
/* ITE 8893 has the same problem as the 8892 */
|
|
DECLARE_PCI_FIXUP_HEADER(0x1283, 0x8893, quirk_use_pcie_bridge_dma_alias);
|
|
/* Intel 82801, https://bugzilla.kernel.org/show_bug.cgi?id=44881#c49 */
|
|
DECLARE_PCI_FIXUP_HEADER(0x8086, 0x244e, quirk_use_pcie_bridge_dma_alias);
|
|
|
|
/*
|
|
* MIC x200 NTB forwards PCIe traffic using multiple alien RIDs. They have to
|
|
* be added as aliases to the DMA device in order to allow buffer access
|
|
* when IOMMU is enabled. Following devfns have to match RIT-LUT table
|
|
* programmed in the EEPROM.
|
|
*/
|
|
static void quirk_mic_x200_dma_alias(struct pci_dev *pdev)
|
|
{
|
|
pci_add_dma_alias(pdev, PCI_DEVFN(0x10, 0x0), 1);
|
|
pci_add_dma_alias(pdev, PCI_DEVFN(0x11, 0x0), 1);
|
|
pci_add_dma_alias(pdev, PCI_DEVFN(0x12, 0x3), 1);
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2260, quirk_mic_x200_dma_alias);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2264, quirk_mic_x200_dma_alias);
|
|
|
|
/*
|
|
* Intel Visual Compute Accelerator (VCA) is a family of PCIe add-in devices
|
|
* exposing computational units via Non Transparent Bridges (NTB, PEX 87xx).
|
|
*
|
|
* Similarly to MIC x200, we need to add DMA aliases to allow buffer access
|
|
* when IOMMU is enabled. These aliases allow computational unit access to
|
|
* host memory. These aliases mark the whole VCA device as one IOMMU
|
|
* group.
|
|
*
|
|
* All possible slot numbers (0x20) are used, since we are unable to tell
|
|
* what slot is used on other side. This quirk is intended for both host
|
|
* and computational unit sides. The VCA devices have up to five functions
|
|
* (four for DMA channels and one additional).
|
|
*/
|
|
static void quirk_pex_vca_alias(struct pci_dev *pdev)
|
|
{
|
|
const unsigned int num_pci_slots = 0x20;
|
|
unsigned int slot;
|
|
|
|
for (slot = 0; slot < num_pci_slots; slot++)
|
|
pci_add_dma_alias(pdev, PCI_DEVFN(slot, 0x0), 5);
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2954, quirk_pex_vca_alias);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2955, quirk_pex_vca_alias);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2956, quirk_pex_vca_alias);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2958, quirk_pex_vca_alias);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2959, quirk_pex_vca_alias);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x295A, quirk_pex_vca_alias);
|
|
|
|
/*
|
|
* The IOMMU and interrupt controller on Broadcom Vulcan/Cavium ThunderX2 are
|
|
* associated not at the root bus, but at a bridge below. This quirk avoids
|
|
* generating invalid DMA aliases.
|
|
*/
|
|
static void quirk_bridge_cavm_thrx2_pcie_root(struct pci_dev *pdev)
|
|
{
|
|
pdev->dev_flags |= PCI_DEV_FLAGS_BRIDGE_XLATE_ROOT;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, 0x9000,
|
|
quirk_bridge_cavm_thrx2_pcie_root);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, 0x9084,
|
|
quirk_bridge_cavm_thrx2_pcie_root);
|
|
|
|
/*
|
|
* Intersil/Techwell TW686[4589]-based video capture cards have an empty (zero)
|
|
* class code. Fix it.
|
|
*/
|
|
static void quirk_tw686x_class(struct pci_dev *pdev)
|
|
{
|
|
u32 class = pdev->class;
|
|
|
|
/* Use "Multimedia controller" class */
|
|
pdev->class = (PCI_CLASS_MULTIMEDIA_OTHER << 8) | 0x01;
|
|
pci_info(pdev, "TW686x PCI class overridden (%#08x -> %#08x)\n",
|
|
class, pdev->class);
|
|
}
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(0x1797, 0x6864, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_tw686x_class);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(0x1797, 0x6865, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_tw686x_class);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(0x1797, 0x6868, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_tw686x_class);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(0x1797, 0x6869, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_tw686x_class);
|
|
|
|
/*
|
|
* Some devices have problems with Transaction Layer Packets with the Relaxed
|
|
* Ordering Attribute set. Such devices should mark themselves and other
|
|
* device drivers should check before sending TLPs with RO set.
|
|
*/
|
|
static void quirk_relaxedordering_disable(struct pci_dev *dev)
|
|
{
|
|
dev->dev_flags |= PCI_DEV_FLAGS_NO_RELAXED_ORDERING;
|
|
pci_info(dev, "Disable Relaxed Ordering Attributes to avoid PCIe Completion erratum\n");
|
|
}
|
|
|
|
/*
|
|
* Intel Xeon processors based on Broadwell/Haswell microarchitecture Root
|
|
* Complex have a Flow Control Credit issue which can cause performance
|
|
* problems with Upstream Transaction Layer Packets with Relaxed Ordering set.
|
|
*/
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f01, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f02, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f03, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f04, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f05, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f06, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f07, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f08, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f09, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f0a, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f0b, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f0c, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f0d, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f0e, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f01, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f02, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f03, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f04, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f05, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f06, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f07, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f08, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f09, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f0a, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f0b, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f0c, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f0d, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f0e, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
|
|
/*
|
|
* The AMD ARM A1100 (aka "SEATTLE") SoC has a bug in its PCIe Root Complex
|
|
* where Upstream Transaction Layer Packets with the Relaxed Ordering
|
|
* Attribute clear are allowed to bypass earlier TLPs with Relaxed Ordering
|
|
* set. This is a violation of the PCIe 3.0 Transaction Ordering Rules
|
|
* outlined in Section 2.4.1 (PCI Express(r) Base Specification Revision 3.0
|
|
* November 10, 2010). As a result, on this platform we can't use Relaxed
|
|
* Ordering for Upstream TLPs.
|
|
*/
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_AMD, 0x1a00, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_AMD, 0x1a01, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_AMD, 0x1a02, PCI_CLASS_NOT_DEFINED, 8,
|
|
quirk_relaxedordering_disable);
|
|
|
|
/*
|
|
* Per PCIe r3.0, sec 2.2.9, "Completion headers must supply the same
|
|
* values for the Attribute as were supplied in the header of the
|
|
* corresponding Request, except as explicitly allowed when IDO is used."
|
|
*
|
|
* If a non-compliant device generates a completion with a different
|
|
* attribute than the request, the receiver may accept it (which itself
|
|
* seems non-compliant based on sec 2.3.2), or it may handle it as a
|
|
* Malformed TLP or an Unexpected Completion, which will probably lead to a
|
|
* device access timeout.
|
|
*
|
|
* If the non-compliant device generates completions with zero attributes
|
|
* (instead of copying the attributes from the request), we can work around
|
|
* this by disabling the "Relaxed Ordering" and "No Snoop" attributes in
|
|
* upstream devices so they always generate requests with zero attributes.
|
|
*
|
|
* This affects other devices under the same Root Port, but since these
|
|
* attributes are performance hints, there should be no functional problem.
|
|
*
|
|
* Note that Configuration Space accesses are never supposed to have TLP
|
|
* Attributes, so we're safe waiting till after any Configuration Space
|
|
* accesses to do the Root Port fixup.
|
|
*/
|
|
static void quirk_disable_root_port_attributes(struct pci_dev *pdev)
|
|
{
|
|
struct pci_dev *root_port = pcie_find_root_port(pdev);
|
|
|
|
if (!root_port) {
|
|
pci_warn(pdev, "PCIe Completion erratum may cause device errors\n");
|
|
return;
|
|
}
|
|
|
|
pci_info(root_port, "Disabling No Snoop/Relaxed Ordering Attributes to avoid PCIe Completion erratum in %s\n",
|
|
dev_name(&pdev->dev));
|
|
pcie_capability_clear_and_set_word(root_port, PCI_EXP_DEVCTL,
|
|
PCI_EXP_DEVCTL_RELAX_EN |
|
|
PCI_EXP_DEVCTL_NOSNOOP_EN, 0);
|
|
}
|
|
|
|
/*
|
|
* The Chelsio T5 chip fails to copy TLP Attributes from a Request to the
|
|
* Completion it generates.
|
|
*/
|
|
static void quirk_chelsio_T5_disable_root_port_attributes(struct pci_dev *pdev)
|
|
{
|
|
/*
|
|
* This mask/compare operation selects for Physical Function 4 on a
|
|
* T5. We only need to fix up the Root Port once for any of the
|
|
* PFs. PF[0..3] have PCI Device IDs of 0x50xx, but PF4 is uniquely
|
|
* 0x54xx so we use that one.
|
|
*/
|
|
if ((pdev->device & 0xff00) == 0x5400)
|
|
quirk_disable_root_port_attributes(pdev);
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_CHELSIO, PCI_ANY_ID,
|
|
quirk_chelsio_T5_disable_root_port_attributes);
|
|
|
|
/*
|
|
* pci_acs_ctrl_enabled - compare desired ACS controls with those provided
|
|
* by a device
|
|
* @acs_ctrl_req: Bitmask of desired ACS controls
|
|
* @acs_ctrl_ena: Bitmask of ACS controls enabled or provided implicitly by
|
|
* the hardware design
|
|
*
|
|
* Return 1 if all ACS controls in the @acs_ctrl_req bitmask are included
|
|
* in @acs_ctrl_ena, i.e., the device provides all the access controls the
|
|
* caller desires. Return 0 otherwise.
|
|
*/
|
|
static int pci_acs_ctrl_enabled(u16 acs_ctrl_req, u16 acs_ctrl_ena)
|
|
{
|
|
if ((acs_ctrl_req & acs_ctrl_ena) == acs_ctrl_req)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* AMD has indicated that the devices below do not support peer-to-peer
|
|
* in any system where they are found in the southbridge with an AMD
|
|
* IOMMU in the system. Multifunction devices that do not support
|
|
* peer-to-peer between functions can claim to support a subset of ACS.
|
|
* Such devices effectively enable request redirect (RR) and completion
|
|
* redirect (CR) since all transactions are redirected to the upstream
|
|
* root complex.
|
|
*
|
|
* https://lore.kernel.org/r/201207111426.q6BEQTbh002928@mail.maya.org/
|
|
* https://lore.kernel.org/r/20120711165854.GM25282@amd.com/
|
|
* https://lore.kernel.org/r/20121005130857.GX4009@amd.com/
|
|
*
|
|
* 1002:4385 SBx00 SMBus Controller
|
|
* 1002:439c SB7x0/SB8x0/SB9x0 IDE Controller
|
|
* 1002:4383 SBx00 Azalia (Intel HDA)
|
|
* 1002:439d SB7x0/SB8x0/SB9x0 LPC host controller
|
|
* 1002:4384 SBx00 PCI to PCI Bridge
|
|
* 1002:4399 SB7x0/SB8x0/SB9x0 USB OHCI2 Controller
|
|
*
|
|
* https://bugzilla.kernel.org/show_bug.cgi?id=81841#c15
|
|
*
|
|
* 1022:780f [AMD] FCH PCI Bridge
|
|
* 1022:7809 [AMD] FCH USB OHCI Controller
|
|
*/
|
|
static int pci_quirk_amd_sb_acs(struct pci_dev *dev, u16 acs_flags)
|
|
{
|
|
#ifdef CONFIG_ACPI
|
|
struct acpi_table_header *header = NULL;
|
|
acpi_status status;
|
|
|
|
/* Targeting multifunction devices on the SB (appears on root bus) */
|
|
if (!dev->multifunction || !pci_is_root_bus(dev->bus))
|
|
return -ENODEV;
|
|
|
|
/* The IVRS table describes the AMD IOMMU */
|
|
status = acpi_get_table("IVRS", 0, &header);
|
|
if (ACPI_FAILURE(status))
|
|
return -ENODEV;
|
|
|
|
acpi_put_table(header);
|
|
|
|
/* Filter out flags not applicable to multifunction */
|
|
acs_flags &= (PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_EC | PCI_ACS_DT);
|
|
|
|
return pci_acs_ctrl_enabled(acs_flags, PCI_ACS_RR | PCI_ACS_CR);
|
|
#else
|
|
return -ENODEV;
|
|
#endif
|
|
}
|
|
|
|
static bool pci_quirk_cavium_acs_match(struct pci_dev *dev)
|
|
{
|
|
if (!pci_is_pcie(dev) || pci_pcie_type(dev) != PCI_EXP_TYPE_ROOT_PORT)
|
|
return false;
|
|
|
|
switch (dev->device) {
|
|
/*
|
|
* Effectively selects all downstream ports for whole ThunderX1
|
|
* (which represents 8 SoCs).
|
|
*/
|
|
case 0xa000 ... 0xa7ff: /* ThunderX1 */
|
|
case 0xaf84: /* ThunderX2 */
|
|
case 0xb884: /* ThunderX3 */
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static int pci_quirk_cavium_acs(struct pci_dev *dev, u16 acs_flags)
|
|
{
|
|
if (!pci_quirk_cavium_acs_match(dev))
|
|
return -ENOTTY;
|
|
|
|
/*
|
|
* Cavium Root Ports don't advertise an ACS capability. However,
|
|
* the RTL internally implements similar protection as if ACS had
|
|
* Source Validation, Request Redirection, Completion Redirection,
|
|
* and Upstream Forwarding features enabled. Assert that the
|
|
* hardware implements and enables equivalent ACS functionality for
|
|
* these flags.
|
|
*/
|
|
return pci_acs_ctrl_enabled(acs_flags,
|
|
PCI_ACS_SV | PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF);
|
|
}
|
|
|
|
static int pci_quirk_xgene_acs(struct pci_dev *dev, u16 acs_flags)
|
|
{
|
|
/*
|
|
* X-Gene Root Ports matching this quirk do not allow peer-to-peer
|
|
* transactions with others, allowing masking out these bits as if they
|
|
* were unimplemented in the ACS capability.
|
|
*/
|
|
return pci_acs_ctrl_enabled(acs_flags,
|
|
PCI_ACS_SV | PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF);
|
|
}
|
|
|
|
/*
|
|
* Many Zhaoxin Root Ports and Switch Downstream Ports have no ACS capability.
|
|
* But the implementation could block peer-to-peer transactions between them
|
|
* and provide ACS-like functionality.
|
|
*/
|
|
static int pci_quirk_zhaoxin_pcie_ports_acs(struct pci_dev *dev, u16 acs_flags)
|
|
{
|
|
if (!pci_is_pcie(dev) ||
|
|
((pci_pcie_type(dev) != PCI_EXP_TYPE_ROOT_PORT) &&
|
|
(pci_pcie_type(dev) != PCI_EXP_TYPE_DOWNSTREAM)))
|
|
return -ENOTTY;
|
|
|
|
/*
|
|
* Future Zhaoxin Root Ports and Switch Downstream Ports will
|
|
* implement ACS capability in accordance with the PCIe Spec.
|
|
*/
|
|
switch (dev->device) {
|
|
case 0x0710 ... 0x071e:
|
|
case 0x0721:
|
|
case 0x0723 ... 0x0752:
|
|
return pci_acs_ctrl_enabled(acs_flags,
|
|
PCI_ACS_SV | PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Many Intel PCH Root Ports do provide ACS-like features to disable peer
|
|
* transactions and validate bus numbers in requests, but do not provide an
|
|
* actual PCIe ACS capability. This is the list of device IDs known to fall
|
|
* into that category as provided by Intel in Red Hat bugzilla 1037684.
|
|
*/
|
|
static const u16 pci_quirk_intel_pch_acs_ids[] = {
|
|
/* Ibexpeak PCH */
|
|
0x3b42, 0x3b43, 0x3b44, 0x3b45, 0x3b46, 0x3b47, 0x3b48, 0x3b49,
|
|
0x3b4a, 0x3b4b, 0x3b4c, 0x3b4d, 0x3b4e, 0x3b4f, 0x3b50, 0x3b51,
|
|
/* Cougarpoint PCH */
|
|
0x1c10, 0x1c11, 0x1c12, 0x1c13, 0x1c14, 0x1c15, 0x1c16, 0x1c17,
|
|
0x1c18, 0x1c19, 0x1c1a, 0x1c1b, 0x1c1c, 0x1c1d, 0x1c1e, 0x1c1f,
|
|
/* Pantherpoint PCH */
|
|
0x1e10, 0x1e11, 0x1e12, 0x1e13, 0x1e14, 0x1e15, 0x1e16, 0x1e17,
|
|
0x1e18, 0x1e19, 0x1e1a, 0x1e1b, 0x1e1c, 0x1e1d, 0x1e1e, 0x1e1f,
|
|
/* Lynxpoint-H PCH */
|
|
0x8c10, 0x8c11, 0x8c12, 0x8c13, 0x8c14, 0x8c15, 0x8c16, 0x8c17,
|
|
0x8c18, 0x8c19, 0x8c1a, 0x8c1b, 0x8c1c, 0x8c1d, 0x8c1e, 0x8c1f,
|
|
/* Lynxpoint-LP PCH */
|
|
0x9c10, 0x9c11, 0x9c12, 0x9c13, 0x9c14, 0x9c15, 0x9c16, 0x9c17,
|
|
0x9c18, 0x9c19, 0x9c1a, 0x9c1b,
|
|
/* Wildcat PCH */
|
|
0x9c90, 0x9c91, 0x9c92, 0x9c93, 0x9c94, 0x9c95, 0x9c96, 0x9c97,
|
|
0x9c98, 0x9c99, 0x9c9a, 0x9c9b,
|
|
/* Patsburg (X79) PCH */
|
|
0x1d10, 0x1d12, 0x1d14, 0x1d16, 0x1d18, 0x1d1a, 0x1d1c, 0x1d1e,
|
|
/* Wellsburg (X99) PCH */
|
|
0x8d10, 0x8d11, 0x8d12, 0x8d13, 0x8d14, 0x8d15, 0x8d16, 0x8d17,
|
|
0x8d18, 0x8d19, 0x8d1a, 0x8d1b, 0x8d1c, 0x8d1d, 0x8d1e,
|
|
/* Lynx Point (9 series) PCH */
|
|
0x8c90, 0x8c92, 0x8c94, 0x8c96, 0x8c98, 0x8c9a, 0x8c9c, 0x8c9e,
|
|
};
|
|
|
|
static bool pci_quirk_intel_pch_acs_match(struct pci_dev *dev)
|
|
{
|
|
int i;
|
|
|
|
/* Filter out a few obvious non-matches first */
|
|
if (!pci_is_pcie(dev) || pci_pcie_type(dev) != PCI_EXP_TYPE_ROOT_PORT)
|
|
return false;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(pci_quirk_intel_pch_acs_ids); i++)
|
|
if (pci_quirk_intel_pch_acs_ids[i] == dev->device)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
static int pci_quirk_intel_pch_acs(struct pci_dev *dev, u16 acs_flags)
|
|
{
|
|
if (!pci_quirk_intel_pch_acs_match(dev))
|
|
return -ENOTTY;
|
|
|
|
if (dev->dev_flags & PCI_DEV_FLAGS_ACS_ENABLED_QUIRK)
|
|
return pci_acs_ctrl_enabled(acs_flags,
|
|
PCI_ACS_SV | PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF);
|
|
|
|
return pci_acs_ctrl_enabled(acs_flags, 0);
|
|
}
|
|
|
|
/*
|
|
* These QCOM Root Ports do provide ACS-like features to disable peer
|
|
* transactions and validate bus numbers in requests, but do not provide an
|
|
* actual PCIe ACS capability. Hardware supports source validation but it
|
|
* will report the issue as Completer Abort instead of ACS Violation.
|
|
* Hardware doesn't support peer-to-peer and each Root Port is a Root
|
|
* Complex with unique segment numbers. It is not possible for one Root
|
|
* Port to pass traffic to another Root Port. All PCIe transactions are
|
|
* terminated inside the Root Port.
|
|
*/
|
|
static int pci_quirk_qcom_rp_acs(struct pci_dev *dev, u16 acs_flags)
|
|
{
|
|
return pci_acs_ctrl_enabled(acs_flags,
|
|
PCI_ACS_SV | PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF);
|
|
}
|
|
|
|
/*
|
|
* Each of these NXP Root Ports is in a Root Complex with a unique segment
|
|
* number and does provide isolation features to disable peer transactions
|
|
* and validate bus numbers in requests, but does not provide an ACS
|
|
* capability.
|
|
*/
|
|
static int pci_quirk_nxp_rp_acs(struct pci_dev *dev, u16 acs_flags)
|
|
{
|
|
return pci_acs_ctrl_enabled(acs_flags,
|
|
PCI_ACS_SV | PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF);
|
|
}
|
|
|
|
static int pci_quirk_al_acs(struct pci_dev *dev, u16 acs_flags)
|
|
{
|
|
if (pci_pcie_type(dev) != PCI_EXP_TYPE_ROOT_PORT)
|
|
return -ENOTTY;
|
|
|
|
/*
|
|
* Amazon's Annapurna Labs root ports don't include an ACS capability,
|
|
* but do include ACS-like functionality. The hardware doesn't support
|
|
* peer-to-peer transactions via the root port and each has a unique
|
|
* segment number.
|
|
*
|
|
* Additionally, the root ports cannot send traffic to each other.
|
|
*/
|
|
acs_flags &= ~(PCI_ACS_SV | PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF);
|
|
|
|
return acs_flags ? 0 : 1;
|
|
}
|
|
|
|
/*
|
|
* Sunrise Point PCH root ports implement ACS, but unfortunately as shown in
|
|
* the datasheet (Intel 100 Series Chipset Family PCH Datasheet, Vol. 2,
|
|
* 12.1.46, 12.1.47)[1] this chipset uses dwords for the ACS capability and
|
|
* control registers whereas the PCIe spec packs them into words (Rev 3.0,
|
|
* 7.16 ACS Extended Capability). The bit definitions are correct, but the
|
|
* control register is at offset 8 instead of 6 and we should probably use
|
|
* dword accesses to them. This applies to the following PCI Device IDs, as
|
|
* found in volume 1 of the datasheet[2]:
|
|
*
|
|
* 0xa110-0xa11f Sunrise Point-H PCI Express Root Port #{0-16}
|
|
* 0xa167-0xa16a Sunrise Point-H PCI Express Root Port #{17-20}
|
|
*
|
|
* N.B. This doesn't fix what lspci shows.
|
|
*
|
|
* The 100 series chipset specification update includes this as errata #23[3].
|
|
*
|
|
* The 200 series chipset (Union Point) has the same bug according to the
|
|
* specification update (Intel 200 Series Chipset Family Platform Controller
|
|
* Hub, Specification Update, January 2017, Revision 001, Document# 335194-001,
|
|
* Errata 22)[4]. Per the datasheet[5], root port PCI Device IDs for this
|
|
* chipset include:
|
|
*
|
|
* 0xa290-0xa29f PCI Express Root port #{0-16}
|
|
* 0xa2e7-0xa2ee PCI Express Root port #{17-24}
|
|
*
|
|
* Mobile chipsets are also affected, 7th & 8th Generation
|
|
* Specification update confirms ACS errata 22, status no fix: (7th Generation
|
|
* Intel Processor Family I/O for U/Y Platforms and 8th Generation Intel
|
|
* Processor Family I/O for U Quad Core Platforms Specification Update,
|
|
* August 2017, Revision 002, Document#: 334660-002)[6]
|
|
* Device IDs from I/O datasheet: (7th Generation Intel Processor Family I/O
|
|
* for U/Y Platforms and 8th Generation Intel ® Processor Family I/O for U
|
|
* Quad Core Platforms, Vol 1 of 2, August 2017, Document#: 334658-003)[7]
|
|
*
|
|
* 0x9d10-0x9d1b PCI Express Root port #{1-12}
|
|
*
|
|
* [1] https://www.intel.com/content/www/us/en/chipsets/100-series-chipset-datasheet-vol-2.html
|
|
* [2] https://www.intel.com/content/www/us/en/chipsets/100-series-chipset-datasheet-vol-1.html
|
|
* [3] https://www.intel.com/content/www/us/en/chipsets/100-series-chipset-spec-update.html
|
|
* [4] https://www.intel.com/content/www/us/en/chipsets/200-series-chipset-pch-spec-update.html
|
|
* [5] https://www.intel.com/content/www/us/en/chipsets/200-series-chipset-pch-datasheet-vol-1.html
|
|
* [6] https://www.intel.com/content/www/us/en/processors/core/7th-gen-core-family-mobile-u-y-processor-lines-i-o-spec-update.html
|
|
* [7] https://www.intel.com/content/www/us/en/processors/core/7th-gen-core-family-mobile-u-y-processor-lines-i-o-datasheet-vol-1.html
|
|
*/
|
|
static bool pci_quirk_intel_spt_pch_acs_match(struct pci_dev *dev)
|
|
{
|
|
if (!pci_is_pcie(dev) || pci_pcie_type(dev) != PCI_EXP_TYPE_ROOT_PORT)
|
|
return false;
|
|
|
|
switch (dev->device) {
|
|
case 0xa110 ... 0xa11f: case 0xa167 ... 0xa16a: /* Sunrise Point */
|
|
case 0xa290 ... 0xa29f: case 0xa2e7 ... 0xa2ee: /* Union Point */
|
|
case 0x9d10 ... 0x9d1b: /* 7th & 8th Gen Mobile */
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
#define INTEL_SPT_ACS_CTRL (PCI_ACS_CAP + 4)
|
|
|
|
static int pci_quirk_intel_spt_pch_acs(struct pci_dev *dev, u16 acs_flags)
|
|
{
|
|
int pos;
|
|
u32 cap, ctrl;
|
|
|
|
if (!pci_quirk_intel_spt_pch_acs_match(dev))
|
|
return -ENOTTY;
|
|
|
|
pos = dev->acs_cap;
|
|
if (!pos)
|
|
return -ENOTTY;
|
|
|
|
/* see pci_acs_flags_enabled() */
|
|
pci_read_config_dword(dev, pos + PCI_ACS_CAP, &cap);
|
|
acs_flags &= (cap | PCI_ACS_EC);
|
|
|
|
pci_read_config_dword(dev, pos + INTEL_SPT_ACS_CTRL, &ctrl);
|
|
|
|
return pci_acs_ctrl_enabled(acs_flags, ctrl);
|
|
}
|
|
|
|
static int pci_quirk_mf_endpoint_acs(struct pci_dev *dev, u16 acs_flags)
|
|
{
|
|
/*
|
|
* SV, TB, and UF are not relevant to multifunction endpoints.
|
|
*
|
|
* Multifunction devices are only required to implement RR, CR, and DT
|
|
* in their ACS capability if they support peer-to-peer transactions.
|
|
* Devices matching this quirk have been verified by the vendor to not
|
|
* perform peer-to-peer with other functions, allowing us to mask out
|
|
* these bits as if they were unimplemented in the ACS capability.
|
|
*/
|
|
return pci_acs_ctrl_enabled(acs_flags,
|
|
PCI_ACS_SV | PCI_ACS_TB | PCI_ACS_RR |
|
|
PCI_ACS_CR | PCI_ACS_UF | PCI_ACS_DT);
|
|
}
|
|
|
|
static int pci_quirk_rciep_acs(struct pci_dev *dev, u16 acs_flags)
|
|
{
|
|
/*
|
|
* Intel RCiEP's are required to allow p2p only on translated
|
|
* addresses. Refer to Intel VT-d specification, r3.1, sec 3.16,
|
|
* "Root-Complex Peer to Peer Considerations".
|
|
*/
|
|
if (pci_pcie_type(dev) != PCI_EXP_TYPE_RC_END)
|
|
return -ENOTTY;
|
|
|
|
return pci_acs_ctrl_enabled(acs_flags,
|
|
PCI_ACS_SV | PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF);
|
|
}
|
|
|
|
static int pci_quirk_brcm_acs(struct pci_dev *dev, u16 acs_flags)
|
|
{
|
|
/*
|
|
* iProc PAXB Root Ports don't advertise an ACS capability, but
|
|
* they do not allow peer-to-peer transactions between Root Ports.
|
|
* Allow each Root Port to be in a separate IOMMU group by masking
|
|
* SV/RR/CR/UF bits.
|
|
*/
|
|
return pci_acs_ctrl_enabled(acs_flags,
|
|
PCI_ACS_SV | PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF);
|
|
}
|
|
|
|
/*
|
|
* Wangxun 10G/1G NICs have no ACS capability, and on multi-function
|
|
* devices, peer-to-peer transactions are not be used between the functions.
|
|
* So add an ACS quirk for below devices to isolate functions.
|
|
* SFxxx 1G NICs(em).
|
|
* RP1000/RP2000 10G NICs(sp).
|
|
*/
|
|
static int pci_quirk_wangxun_nic_acs(struct pci_dev *dev, u16 acs_flags)
|
|
{
|
|
switch (dev->device) {
|
|
case 0x0100 ... 0x010F:
|
|
case 0x1001:
|
|
case 0x2001:
|
|
return pci_acs_ctrl_enabled(acs_flags,
|
|
PCI_ACS_SV | PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static const struct pci_dev_acs_enabled {
|
|
u16 vendor;
|
|
u16 device;
|
|
int (*acs_enabled)(struct pci_dev *dev, u16 acs_flags);
|
|
} pci_dev_acs_enabled[] = {
|
|
{ PCI_VENDOR_ID_ATI, 0x4385, pci_quirk_amd_sb_acs },
|
|
{ PCI_VENDOR_ID_ATI, 0x439c, pci_quirk_amd_sb_acs },
|
|
{ PCI_VENDOR_ID_ATI, 0x4383, pci_quirk_amd_sb_acs },
|
|
{ PCI_VENDOR_ID_ATI, 0x439d, pci_quirk_amd_sb_acs },
|
|
{ PCI_VENDOR_ID_ATI, 0x4384, pci_quirk_amd_sb_acs },
|
|
{ PCI_VENDOR_ID_ATI, 0x4399, pci_quirk_amd_sb_acs },
|
|
{ PCI_VENDOR_ID_AMD, 0x780f, pci_quirk_amd_sb_acs },
|
|
{ PCI_VENDOR_ID_AMD, 0x7809, pci_quirk_amd_sb_acs },
|
|
{ PCI_VENDOR_ID_SOLARFLARE, 0x0903, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_SOLARFLARE, 0x0923, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_SOLARFLARE, 0x0A03, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x10C6, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x10DB, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x10DD, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x10E1, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x10F1, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x10F7, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x10F8, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x10F9, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x10FA, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x10FB, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x10FC, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x1507, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x1514, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x151C, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x1529, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x152A, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x154D, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x154F, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x1551, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x1558, pci_quirk_mf_endpoint_acs },
|
|
/* 82580 */
|
|
{ PCI_VENDOR_ID_INTEL, 0x1509, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x150E, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x150F, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x1510, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x1511, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x1516, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x1527, pci_quirk_mf_endpoint_acs },
|
|
/* 82576 */
|
|
{ PCI_VENDOR_ID_INTEL, 0x10C9, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x10E6, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x10E7, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x10E8, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x150A, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x150D, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x1518, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x1526, pci_quirk_mf_endpoint_acs },
|
|
/* 82575 */
|
|
{ PCI_VENDOR_ID_INTEL, 0x10A7, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x10A9, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x10D6, pci_quirk_mf_endpoint_acs },
|
|
/* I350 */
|
|
{ PCI_VENDOR_ID_INTEL, 0x1521, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x1522, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x1523, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x1524, pci_quirk_mf_endpoint_acs },
|
|
/* 82571 (Quads omitted due to non-ACS switch) */
|
|
{ PCI_VENDOR_ID_INTEL, 0x105E, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x105F, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x1060, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x10D9, pci_quirk_mf_endpoint_acs },
|
|
/* I219 */
|
|
{ PCI_VENDOR_ID_INTEL, 0x15b7, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, 0x15b8, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_rciep_acs },
|
|
/* QCOM QDF2xxx root ports */
|
|
{ PCI_VENDOR_ID_QCOM, 0x0400, pci_quirk_qcom_rp_acs },
|
|
{ PCI_VENDOR_ID_QCOM, 0x0401, pci_quirk_qcom_rp_acs },
|
|
/* HXT SD4800 root ports. The ACS design is same as QCOM QDF2xxx */
|
|
{ PCI_VENDOR_ID_HXT, 0x0401, pci_quirk_qcom_rp_acs },
|
|
/* Intel PCH root ports */
|
|
{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_pch_acs },
|
|
{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_spt_pch_acs },
|
|
{ 0x19a2, 0x710, pci_quirk_mf_endpoint_acs }, /* Emulex BE3-R */
|
|
{ 0x10df, 0x720, pci_quirk_mf_endpoint_acs }, /* Emulex Skyhawk-R */
|
|
/* Cavium ThunderX */
|
|
{ PCI_VENDOR_ID_CAVIUM, PCI_ANY_ID, pci_quirk_cavium_acs },
|
|
/* Cavium multi-function devices */
|
|
{ PCI_VENDOR_ID_CAVIUM, 0xA026, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_CAVIUM, 0xA059, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_CAVIUM, 0xA060, pci_quirk_mf_endpoint_acs },
|
|
/* APM X-Gene */
|
|
{ PCI_VENDOR_ID_AMCC, 0xE004, pci_quirk_xgene_acs },
|
|
/* Ampere Computing */
|
|
{ PCI_VENDOR_ID_AMPERE, 0xE005, pci_quirk_xgene_acs },
|
|
{ PCI_VENDOR_ID_AMPERE, 0xE006, pci_quirk_xgene_acs },
|
|
{ PCI_VENDOR_ID_AMPERE, 0xE007, pci_quirk_xgene_acs },
|
|
{ PCI_VENDOR_ID_AMPERE, 0xE008, pci_quirk_xgene_acs },
|
|
{ PCI_VENDOR_ID_AMPERE, 0xE009, pci_quirk_xgene_acs },
|
|
{ PCI_VENDOR_ID_AMPERE, 0xE00A, pci_quirk_xgene_acs },
|
|
{ PCI_VENDOR_ID_AMPERE, 0xE00B, pci_quirk_xgene_acs },
|
|
{ PCI_VENDOR_ID_AMPERE, 0xE00C, pci_quirk_xgene_acs },
|
|
/* Broadcom multi-function device */
|
|
{ PCI_VENDOR_ID_BROADCOM, 0x16D7, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_BROADCOM, 0x1750, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_BROADCOM, 0x1751, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_BROADCOM, 0x1752, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_BROADCOM, 0xD714, pci_quirk_brcm_acs },
|
|
/* Amazon Annapurna Labs */
|
|
{ PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031, pci_quirk_al_acs },
|
|
/* Zhaoxin multi-function devices */
|
|
{ PCI_VENDOR_ID_ZHAOXIN, 0x3038, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_ZHAOXIN, 0x3104, pci_quirk_mf_endpoint_acs },
|
|
{ PCI_VENDOR_ID_ZHAOXIN, 0x9083, pci_quirk_mf_endpoint_acs },
|
|
/* NXP root ports, xx=16, 12, or 08 cores */
|
|
/* LX2xx0A : without security features + CAN-FD */
|
|
{ PCI_VENDOR_ID_NXP, 0x8d81, pci_quirk_nxp_rp_acs },
|
|
{ PCI_VENDOR_ID_NXP, 0x8da1, pci_quirk_nxp_rp_acs },
|
|
{ PCI_VENDOR_ID_NXP, 0x8d83, pci_quirk_nxp_rp_acs },
|
|
/* LX2xx0C : security features + CAN-FD */
|
|
{ PCI_VENDOR_ID_NXP, 0x8d80, pci_quirk_nxp_rp_acs },
|
|
{ PCI_VENDOR_ID_NXP, 0x8da0, pci_quirk_nxp_rp_acs },
|
|
{ PCI_VENDOR_ID_NXP, 0x8d82, pci_quirk_nxp_rp_acs },
|
|
/* LX2xx0E : security features + CAN */
|
|
{ PCI_VENDOR_ID_NXP, 0x8d90, pci_quirk_nxp_rp_acs },
|
|
{ PCI_VENDOR_ID_NXP, 0x8db0, pci_quirk_nxp_rp_acs },
|
|
{ PCI_VENDOR_ID_NXP, 0x8d92, pci_quirk_nxp_rp_acs },
|
|
/* LX2xx0N : without security features + CAN */
|
|
{ PCI_VENDOR_ID_NXP, 0x8d91, pci_quirk_nxp_rp_acs },
|
|
{ PCI_VENDOR_ID_NXP, 0x8db1, pci_quirk_nxp_rp_acs },
|
|
{ PCI_VENDOR_ID_NXP, 0x8d93, pci_quirk_nxp_rp_acs },
|
|
/* LX2xx2A : without security features + CAN-FD */
|
|
{ PCI_VENDOR_ID_NXP, 0x8d89, pci_quirk_nxp_rp_acs },
|
|
{ PCI_VENDOR_ID_NXP, 0x8da9, pci_quirk_nxp_rp_acs },
|
|
{ PCI_VENDOR_ID_NXP, 0x8d8b, pci_quirk_nxp_rp_acs },
|
|
/* LX2xx2C : security features + CAN-FD */
|
|
{ PCI_VENDOR_ID_NXP, 0x8d88, pci_quirk_nxp_rp_acs },
|
|
{ PCI_VENDOR_ID_NXP, 0x8da8, pci_quirk_nxp_rp_acs },
|
|
{ PCI_VENDOR_ID_NXP, 0x8d8a, pci_quirk_nxp_rp_acs },
|
|
/* LX2xx2E : security features + CAN */
|
|
{ PCI_VENDOR_ID_NXP, 0x8d98, pci_quirk_nxp_rp_acs },
|
|
{ PCI_VENDOR_ID_NXP, 0x8db8, pci_quirk_nxp_rp_acs },
|
|
{ PCI_VENDOR_ID_NXP, 0x8d9a, pci_quirk_nxp_rp_acs },
|
|
/* LX2xx2N : without security features + CAN */
|
|
{ PCI_VENDOR_ID_NXP, 0x8d99, pci_quirk_nxp_rp_acs },
|
|
{ PCI_VENDOR_ID_NXP, 0x8db9, pci_quirk_nxp_rp_acs },
|
|
{ PCI_VENDOR_ID_NXP, 0x8d9b, pci_quirk_nxp_rp_acs },
|
|
/* Zhaoxin Root/Downstream Ports */
|
|
{ PCI_VENDOR_ID_ZHAOXIN, PCI_ANY_ID, pci_quirk_zhaoxin_pcie_ports_acs },
|
|
/* Wangxun nics */
|
|
{ PCI_VENDOR_ID_WANGXUN, PCI_ANY_ID, pci_quirk_wangxun_nic_acs },
|
|
{ 0 }
|
|
};
|
|
|
|
/*
|
|
* pci_dev_specific_acs_enabled - check whether device provides ACS controls
|
|
* @dev: PCI device
|
|
* @acs_flags: Bitmask of desired ACS controls
|
|
*
|
|
* Returns:
|
|
* -ENOTTY: No quirk applies to this device; we can't tell whether the
|
|
* device provides the desired controls
|
|
* 0: Device does not provide all the desired controls
|
|
* >0: Device provides all the controls in @acs_flags
|
|
*/
|
|
int pci_dev_specific_acs_enabled(struct pci_dev *dev, u16 acs_flags)
|
|
{
|
|
const struct pci_dev_acs_enabled *i;
|
|
int ret;
|
|
|
|
/*
|
|
* Allow devices that do not expose standard PCIe ACS capabilities
|
|
* or control to indicate their support here. Multi-function express
|
|
* devices which do not allow internal peer-to-peer between functions,
|
|
* but do not implement PCIe ACS may wish to return true here.
|
|
*/
|
|
for (i = pci_dev_acs_enabled; i->acs_enabled; i++) {
|
|
if ((i->vendor == dev->vendor ||
|
|
i->vendor == (u16)PCI_ANY_ID) &&
|
|
(i->device == dev->device ||
|
|
i->device == (u16)PCI_ANY_ID)) {
|
|
ret = i->acs_enabled(dev, acs_flags);
|
|
if (ret >= 0)
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return -ENOTTY;
|
|
}
|
|
|
|
/* Config space offset of Root Complex Base Address register */
|
|
#define INTEL_LPC_RCBA_REG 0xf0
|
|
/* 31:14 RCBA address */
|
|
#define INTEL_LPC_RCBA_MASK 0xffffc000
|
|
/* RCBA Enable */
|
|
#define INTEL_LPC_RCBA_ENABLE (1 << 0)
|
|
|
|
/* Backbone Scratch Pad Register */
|
|
#define INTEL_BSPR_REG 0x1104
|
|
/* Backbone Peer Non-Posted Disable */
|
|
#define INTEL_BSPR_REG_BPNPD (1 << 8)
|
|
/* Backbone Peer Posted Disable */
|
|
#define INTEL_BSPR_REG_BPPD (1 << 9)
|
|
|
|
/* Upstream Peer Decode Configuration Register */
|
|
#define INTEL_UPDCR_REG 0x1014
|
|
/* 5:0 Peer Decode Enable bits */
|
|
#define INTEL_UPDCR_REG_MASK 0x3f
|
|
|
|
static int pci_quirk_enable_intel_lpc_acs(struct pci_dev *dev)
|
|
{
|
|
u32 rcba, bspr, updcr;
|
|
void __iomem *rcba_mem;
|
|
|
|
/*
|
|
* Read the RCBA register from the LPC (D31:F0). PCH root ports
|
|
* are D28:F* and therefore get probed before LPC, thus we can't
|
|
* use pci_get_slot()/pci_read_config_dword() here.
|
|
*/
|
|
pci_bus_read_config_dword(dev->bus, PCI_DEVFN(31, 0),
|
|
INTEL_LPC_RCBA_REG, &rcba);
|
|
if (!(rcba & INTEL_LPC_RCBA_ENABLE))
|
|
return -EINVAL;
|
|
|
|
rcba_mem = ioremap(rcba & INTEL_LPC_RCBA_MASK,
|
|
PAGE_ALIGN(INTEL_UPDCR_REG));
|
|
if (!rcba_mem)
|
|
return -ENOMEM;
|
|
|
|
/*
|
|
* The BSPR can disallow peer cycles, but it's set by soft strap and
|
|
* therefore read-only. If both posted and non-posted peer cycles are
|
|
* disallowed, we're ok. If either are allowed, then we need to use
|
|
* the UPDCR to disable peer decodes for each port. This provides the
|
|
* PCIe ACS equivalent of PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF
|
|
*/
|
|
bspr = readl(rcba_mem + INTEL_BSPR_REG);
|
|
bspr &= INTEL_BSPR_REG_BPNPD | INTEL_BSPR_REG_BPPD;
|
|
if (bspr != (INTEL_BSPR_REG_BPNPD | INTEL_BSPR_REG_BPPD)) {
|
|
updcr = readl(rcba_mem + INTEL_UPDCR_REG);
|
|
if (updcr & INTEL_UPDCR_REG_MASK) {
|
|
pci_info(dev, "Disabling UPDCR peer decodes\n");
|
|
updcr &= ~INTEL_UPDCR_REG_MASK;
|
|
writel(updcr, rcba_mem + INTEL_UPDCR_REG);
|
|
}
|
|
}
|
|
|
|
iounmap(rcba_mem);
|
|
return 0;
|
|
}
|
|
|
|
/* Miscellaneous Port Configuration register */
|
|
#define INTEL_MPC_REG 0xd8
|
|
/* MPC: Invalid Receive Bus Number Check Enable */
|
|
#define INTEL_MPC_REG_IRBNCE (1 << 26)
|
|
|
|
static void pci_quirk_enable_intel_rp_mpc_acs(struct pci_dev *dev)
|
|
{
|
|
u32 mpc;
|
|
|
|
/*
|
|
* When enabled, the IRBNCE bit of the MPC register enables the
|
|
* equivalent of PCI ACS Source Validation (PCI_ACS_SV), which
|
|
* ensures that requester IDs fall within the bus number range
|
|
* of the bridge. Enable if not already.
|
|
*/
|
|
pci_read_config_dword(dev, INTEL_MPC_REG, &mpc);
|
|
if (!(mpc & INTEL_MPC_REG_IRBNCE)) {
|
|
pci_info(dev, "Enabling MPC IRBNCE\n");
|
|
mpc |= INTEL_MPC_REG_IRBNCE;
|
|
pci_write_config_word(dev, INTEL_MPC_REG, mpc);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Currently this quirk does the equivalent of
|
|
* PCI_ACS_SV | PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF
|
|
*
|
|
* TODO: This quirk also needs to do equivalent of PCI_ACS_TB,
|
|
* if dev->external_facing || dev->untrusted
|
|
*/
|
|
static int pci_quirk_enable_intel_pch_acs(struct pci_dev *dev)
|
|
{
|
|
if (!pci_quirk_intel_pch_acs_match(dev))
|
|
return -ENOTTY;
|
|
|
|
if (pci_quirk_enable_intel_lpc_acs(dev)) {
|
|
pci_warn(dev, "Failed to enable Intel PCH ACS quirk\n");
|
|
return 0;
|
|
}
|
|
|
|
pci_quirk_enable_intel_rp_mpc_acs(dev);
|
|
|
|
dev->dev_flags |= PCI_DEV_FLAGS_ACS_ENABLED_QUIRK;
|
|
|
|
pci_info(dev, "Intel PCH root port ACS workaround enabled\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pci_quirk_enable_intel_spt_pch_acs(struct pci_dev *dev)
|
|
{
|
|
int pos;
|
|
u32 cap, ctrl;
|
|
|
|
if (!pci_quirk_intel_spt_pch_acs_match(dev))
|
|
return -ENOTTY;
|
|
|
|
pos = dev->acs_cap;
|
|
if (!pos)
|
|
return -ENOTTY;
|
|
|
|
pci_read_config_dword(dev, pos + PCI_ACS_CAP, &cap);
|
|
pci_read_config_dword(dev, pos + INTEL_SPT_ACS_CTRL, &ctrl);
|
|
|
|
ctrl |= (cap & PCI_ACS_SV);
|
|
ctrl |= (cap & PCI_ACS_RR);
|
|
ctrl |= (cap & PCI_ACS_CR);
|
|
ctrl |= (cap & PCI_ACS_UF);
|
|
|
|
if (pci_ats_disabled() || dev->external_facing || dev->untrusted)
|
|
ctrl |= (cap & PCI_ACS_TB);
|
|
|
|
pci_write_config_dword(dev, pos + INTEL_SPT_ACS_CTRL, ctrl);
|
|
|
|
pci_info(dev, "Intel SPT PCH root port ACS workaround enabled\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pci_quirk_disable_intel_spt_pch_acs_redir(struct pci_dev *dev)
|
|
{
|
|
int pos;
|
|
u32 cap, ctrl;
|
|
|
|
if (!pci_quirk_intel_spt_pch_acs_match(dev))
|
|
return -ENOTTY;
|
|
|
|
pos = dev->acs_cap;
|
|
if (!pos)
|
|
return -ENOTTY;
|
|
|
|
pci_read_config_dword(dev, pos + PCI_ACS_CAP, &cap);
|
|
pci_read_config_dword(dev, pos + INTEL_SPT_ACS_CTRL, &ctrl);
|
|
|
|
ctrl &= ~(PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_EC);
|
|
|
|
pci_write_config_dword(dev, pos + INTEL_SPT_ACS_CTRL, ctrl);
|
|
|
|
pci_info(dev, "Intel SPT PCH root port workaround: disabled ACS redirect\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct pci_dev_acs_ops {
|
|
u16 vendor;
|
|
u16 device;
|
|
int (*enable_acs)(struct pci_dev *dev);
|
|
int (*disable_acs_redir)(struct pci_dev *dev);
|
|
} pci_dev_acs_ops[] = {
|
|
{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
|
|
.enable_acs = pci_quirk_enable_intel_pch_acs,
|
|
},
|
|
{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
|
|
.enable_acs = pci_quirk_enable_intel_spt_pch_acs,
|
|
.disable_acs_redir = pci_quirk_disable_intel_spt_pch_acs_redir,
|
|
},
|
|
};
|
|
|
|
int pci_dev_specific_enable_acs(struct pci_dev *dev)
|
|
{
|
|
const struct pci_dev_acs_ops *p;
|
|
int i, ret;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(pci_dev_acs_ops); i++) {
|
|
p = &pci_dev_acs_ops[i];
|
|
if ((p->vendor == dev->vendor ||
|
|
p->vendor == (u16)PCI_ANY_ID) &&
|
|
(p->device == dev->device ||
|
|
p->device == (u16)PCI_ANY_ID) &&
|
|
p->enable_acs) {
|
|
ret = p->enable_acs(dev);
|
|
if (ret >= 0)
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return -ENOTTY;
|
|
}
|
|
|
|
int pci_dev_specific_disable_acs_redir(struct pci_dev *dev)
|
|
{
|
|
const struct pci_dev_acs_ops *p;
|
|
int i, ret;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(pci_dev_acs_ops); i++) {
|
|
p = &pci_dev_acs_ops[i];
|
|
if ((p->vendor == dev->vendor ||
|
|
p->vendor == (u16)PCI_ANY_ID) &&
|
|
(p->device == dev->device ||
|
|
p->device == (u16)PCI_ANY_ID) &&
|
|
p->disable_acs_redir) {
|
|
ret = p->disable_acs_redir(dev);
|
|
if (ret >= 0)
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return -ENOTTY;
|
|
}
|
|
|
|
/*
|
|
* The PCI capabilities list for Intel DH895xCC VFs (device ID 0x0443) with
|
|
* QuickAssist Technology (QAT) is prematurely terminated in hardware. The
|
|
* Next Capability pointer in the MSI Capability Structure should point to
|
|
* the PCIe Capability Structure but is incorrectly hardwired as 0 terminating
|
|
* the list.
|
|
*/
|
|
static void quirk_intel_qat_vf_cap(struct pci_dev *pdev)
|
|
{
|
|
int pos, i = 0;
|
|
u8 next_cap;
|
|
u16 reg16, *cap;
|
|
struct pci_cap_saved_state *state;
|
|
|
|
/* Bail if the hardware bug is fixed */
|
|
if (pdev->pcie_cap || pci_find_capability(pdev, PCI_CAP_ID_EXP))
|
|
return;
|
|
|
|
/* Bail if MSI Capability Structure is not found for some reason */
|
|
pos = pci_find_capability(pdev, PCI_CAP_ID_MSI);
|
|
if (!pos)
|
|
return;
|
|
|
|
/*
|
|
* Bail if Next Capability pointer in the MSI Capability Structure
|
|
* is not the expected incorrect 0x00.
|
|
*/
|
|
pci_read_config_byte(pdev, pos + 1, &next_cap);
|
|
if (next_cap)
|
|
return;
|
|
|
|
/*
|
|
* PCIe Capability Structure is expected to be at 0x50 and should
|
|
* terminate the list (Next Capability pointer is 0x00). Verify
|
|
* Capability Id and Next Capability pointer is as expected.
|
|
* Open-code some of set_pcie_port_type() and pci_cfg_space_size_ext()
|
|
* to correctly set kernel data structures which have already been
|
|
* set incorrectly due to the hardware bug.
|
|
*/
|
|
pos = 0x50;
|
|
pci_read_config_word(pdev, pos, ®16);
|
|
if (reg16 == (0x0000 | PCI_CAP_ID_EXP)) {
|
|
u32 status;
|
|
#ifndef PCI_EXP_SAVE_REGS
|
|
#define PCI_EXP_SAVE_REGS 7
|
|
#endif
|
|
int size = PCI_EXP_SAVE_REGS * sizeof(u16);
|
|
|
|
pdev->pcie_cap = pos;
|
|
pci_read_config_word(pdev, pos + PCI_EXP_FLAGS, ®16);
|
|
pdev->pcie_flags_reg = reg16;
|
|
pci_read_config_word(pdev, pos + PCI_EXP_DEVCAP, ®16);
|
|
pdev->pcie_mpss = reg16 & PCI_EXP_DEVCAP_PAYLOAD;
|
|
|
|
pdev->cfg_size = PCI_CFG_SPACE_EXP_SIZE;
|
|
if (pci_read_config_dword(pdev, PCI_CFG_SPACE_SIZE, &status) !=
|
|
PCIBIOS_SUCCESSFUL || (status == 0xffffffff))
|
|
pdev->cfg_size = PCI_CFG_SPACE_SIZE;
|
|
|
|
if (pci_find_saved_cap(pdev, PCI_CAP_ID_EXP))
|
|
return;
|
|
|
|
/* Save PCIe cap */
|
|
state = kzalloc(sizeof(*state) + size, GFP_KERNEL);
|
|
if (!state)
|
|
return;
|
|
|
|
state->cap.cap_nr = PCI_CAP_ID_EXP;
|
|
state->cap.cap_extended = 0;
|
|
state->cap.size = size;
|
|
cap = (u16 *)&state->cap.data[0];
|
|
pcie_capability_read_word(pdev, PCI_EXP_DEVCTL, &cap[i++]);
|
|
pcie_capability_read_word(pdev, PCI_EXP_LNKCTL, &cap[i++]);
|
|
pcie_capability_read_word(pdev, PCI_EXP_SLTCTL, &cap[i++]);
|
|
pcie_capability_read_word(pdev, PCI_EXP_RTCTL, &cap[i++]);
|
|
pcie_capability_read_word(pdev, PCI_EXP_DEVCTL2, &cap[i++]);
|
|
pcie_capability_read_word(pdev, PCI_EXP_LNKCTL2, &cap[i++]);
|
|
pcie_capability_read_word(pdev, PCI_EXP_SLTCTL2, &cap[i++]);
|
|
hlist_add_head(&state->next, &pdev->saved_cap_space);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x443, quirk_intel_qat_vf_cap);
|
|
|
|
/*
|
|
* FLR may cause the following to devices to hang:
|
|
*
|
|
* AMD Starship/Matisse HD Audio Controller 0x1487
|
|
* AMD Starship USB 3.0 Host Controller 0x148c
|
|
* AMD Matisse USB 3.0 Host Controller 0x149c
|
|
* Intel 82579LM Gigabit Ethernet Controller 0x1502
|
|
* Intel 82579V Gigabit Ethernet Controller 0x1503
|
|
*
|
|
*/
|
|
static void quirk_no_flr(struct pci_dev *dev)
|
|
{
|
|
dev->dev_flags |= PCI_DEV_FLAGS_NO_FLR_RESET;
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AMD, 0x1487, quirk_no_flr);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AMD, 0x148c, quirk_no_flr);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AMD, 0x149c, quirk_no_flr);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AMD, 0x7901, quirk_no_flr);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1502, quirk_no_flr);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1503, quirk_no_flr);
|
|
|
|
static void quirk_no_ext_tags(struct pci_dev *pdev)
|
|
{
|
|
struct pci_host_bridge *bridge = pci_find_host_bridge(pdev->bus);
|
|
|
|
if (!bridge)
|
|
return;
|
|
|
|
bridge->no_ext_tags = 1;
|
|
pci_info(pdev, "disabling Extended Tags (this device can't handle them)\n");
|
|
|
|
pci_walk_bus(bridge->bus, pci_configure_extended_tags, NULL);
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_3WARE, 0x1004, quirk_no_ext_tags);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0132, quirk_no_ext_tags);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0140, quirk_no_ext_tags);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0141, quirk_no_ext_tags);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0142, quirk_no_ext_tags);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0144, quirk_no_ext_tags);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0420, quirk_no_ext_tags);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0422, quirk_no_ext_tags);
|
|
|
|
#ifdef CONFIG_PCI_ATS
|
|
static void quirk_no_ats(struct pci_dev *pdev)
|
|
{
|
|
pci_info(pdev, "disabling ATS\n");
|
|
pdev->ats_cap = 0;
|
|
}
|
|
|
|
/*
|
|
* Some devices require additional driver setup to enable ATS. Don't use
|
|
* ATS for those devices as ATS will be enabled before the driver has had a
|
|
* chance to load and configure the device.
|
|
*/
|
|
static void quirk_amd_harvest_no_ats(struct pci_dev *pdev)
|
|
{
|
|
if (pdev->device == 0x15d8) {
|
|
if (pdev->revision == 0xcf &&
|
|
pdev->subsystem_vendor == 0xea50 &&
|
|
(pdev->subsystem_device == 0xce19 ||
|
|
pdev->subsystem_device == 0xcc10 ||
|
|
pdev->subsystem_device == 0xcc08))
|
|
quirk_no_ats(pdev);
|
|
} else {
|
|
quirk_no_ats(pdev);
|
|
}
|
|
}
|
|
|
|
/* AMD Stoney platform GPU */
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x98e4, quirk_amd_harvest_no_ats);
|
|
/* AMD Iceland dGPU */
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_amd_harvest_no_ats);
|
|
/* AMD Navi10 dGPU */
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7310, quirk_amd_harvest_no_ats);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, quirk_amd_harvest_no_ats);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7318, quirk_amd_harvest_no_ats);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7319, quirk_amd_harvest_no_ats);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x731a, quirk_amd_harvest_no_ats);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x731b, quirk_amd_harvest_no_ats);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x731e, quirk_amd_harvest_no_ats);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x731f, quirk_amd_harvest_no_ats);
|
|
/* AMD Navi14 dGPU */
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, quirk_amd_harvest_no_ats);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7341, quirk_amd_harvest_no_ats);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7347, quirk_amd_harvest_no_ats);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x734f, quirk_amd_harvest_no_ats);
|
|
/* AMD Raven platform iGPU */
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x15d8, quirk_amd_harvest_no_ats);
|
|
|
|
/*
|
|
* Intel IPU E2000 revisions before C0 implement incorrect endianness
|
|
* in ATS Invalidate Request message body. Disable ATS for those devices.
|
|
*/
|
|
static void quirk_intel_e2000_no_ats(struct pci_dev *pdev)
|
|
{
|
|
if (pdev->revision < 0x20)
|
|
quirk_no_ats(pdev);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1451, quirk_intel_e2000_no_ats);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1452, quirk_intel_e2000_no_ats);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1453, quirk_intel_e2000_no_ats);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1454, quirk_intel_e2000_no_ats);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1455, quirk_intel_e2000_no_ats);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1457, quirk_intel_e2000_no_ats);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1459, quirk_intel_e2000_no_ats);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x145a, quirk_intel_e2000_no_ats);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x145c, quirk_intel_e2000_no_ats);
|
|
#endif /* CONFIG_PCI_ATS */
|
|
|
|
/* Freescale PCIe doesn't support MSI in RC mode */
|
|
static void quirk_fsl_no_msi(struct pci_dev *pdev)
|
|
{
|
|
if (pci_pcie_type(pdev) == PCI_EXP_TYPE_ROOT_PORT)
|
|
pdev->no_msi = 1;
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_FREESCALE, PCI_ANY_ID, quirk_fsl_no_msi);
|
|
|
|
/*
|
|
* Although not allowed by the spec, some multi-function devices have
|
|
* dependencies of one function (consumer) on another (supplier). For the
|
|
* consumer to work in D0, the supplier must also be in D0. Create a
|
|
* device link from the consumer to the supplier to enforce this
|
|
* dependency. Runtime PM is allowed by default on the consumer to prevent
|
|
* it from permanently keeping the supplier awake.
|
|
*/
|
|
static void pci_create_device_link(struct pci_dev *pdev, unsigned int consumer,
|
|
unsigned int supplier, unsigned int class,
|
|
unsigned int class_shift)
|
|
{
|
|
struct pci_dev *supplier_pdev;
|
|
|
|
if (PCI_FUNC(pdev->devfn) != consumer)
|
|
return;
|
|
|
|
supplier_pdev = pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus),
|
|
pdev->bus->number,
|
|
PCI_DEVFN(PCI_SLOT(pdev->devfn), supplier));
|
|
if (!supplier_pdev || (supplier_pdev->class >> class_shift) != class) {
|
|
pci_dev_put(supplier_pdev);
|
|
return;
|
|
}
|
|
|
|
if (device_link_add(&pdev->dev, &supplier_pdev->dev,
|
|
DL_FLAG_STATELESS | DL_FLAG_PM_RUNTIME))
|
|
pci_info(pdev, "D0 power state depends on %s\n",
|
|
pci_name(supplier_pdev));
|
|
else
|
|
pci_err(pdev, "Cannot enforce power dependency on %s\n",
|
|
pci_name(supplier_pdev));
|
|
|
|
pm_runtime_allow(&pdev->dev);
|
|
pci_dev_put(supplier_pdev);
|
|
}
|
|
|
|
/*
|
|
* Create device link for GPUs with integrated HDA controller for streaming
|
|
* audio to attached displays.
|
|
*/
|
|
static void quirk_gpu_hda(struct pci_dev *hda)
|
|
{
|
|
pci_create_device_link(hda, 1, 0, PCI_BASE_CLASS_DISPLAY, 16);
|
|
}
|
|
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_ATI, PCI_ANY_ID,
|
|
PCI_CLASS_MULTIMEDIA_HD_AUDIO, 8, quirk_gpu_hda);
|
|
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_AMD, PCI_ANY_ID,
|
|
PCI_CLASS_MULTIMEDIA_HD_AUDIO, 8, quirk_gpu_hda);
|
|
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
|
|
PCI_CLASS_MULTIMEDIA_HD_AUDIO, 8, quirk_gpu_hda);
|
|
|
|
/*
|
|
* Create device link for GPUs with integrated USB xHCI Host
|
|
* controller to VGA.
|
|
*/
|
|
static void quirk_gpu_usb(struct pci_dev *usb)
|
|
{
|
|
pci_create_device_link(usb, 2, 0, PCI_BASE_CLASS_DISPLAY, 16);
|
|
}
|
|
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
|
|
PCI_CLASS_SERIAL_USB, 8, quirk_gpu_usb);
|
|
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_ATI, PCI_ANY_ID,
|
|
PCI_CLASS_SERIAL_USB, 8, quirk_gpu_usb);
|
|
|
|
/*
|
|
* Create device link for GPUs with integrated Type-C UCSI controller
|
|
* to VGA. Currently there is no class code defined for UCSI device over PCI
|
|
* so using UNKNOWN class for now and it will be updated when UCSI
|
|
* over PCI gets a class code.
|
|
*/
|
|
#define PCI_CLASS_SERIAL_UNKNOWN 0x0c80
|
|
static void quirk_gpu_usb_typec_ucsi(struct pci_dev *ucsi)
|
|
{
|
|
pci_create_device_link(ucsi, 3, 0, PCI_BASE_CLASS_DISPLAY, 16);
|
|
}
|
|
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
|
|
PCI_CLASS_SERIAL_UNKNOWN, 8,
|
|
quirk_gpu_usb_typec_ucsi);
|
|
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_ATI, PCI_ANY_ID,
|
|
PCI_CLASS_SERIAL_UNKNOWN, 8,
|
|
quirk_gpu_usb_typec_ucsi);
|
|
|
|
/*
|
|
* Enable the NVIDIA GPU integrated HDA controller if the BIOS left it
|
|
* disabled. https://devtalk.nvidia.com/default/topic/1024022
|
|
*/
|
|
static void quirk_nvidia_hda(struct pci_dev *gpu)
|
|
{
|
|
u8 hdr_type;
|
|
u32 val;
|
|
|
|
/* There was no integrated HDA controller before MCP89 */
|
|
if (gpu->device < PCI_DEVICE_ID_NVIDIA_GEFORCE_320M)
|
|
return;
|
|
|
|
/* Bit 25 at offset 0x488 enables the HDA controller */
|
|
pci_read_config_dword(gpu, 0x488, &val);
|
|
if (val & BIT(25))
|
|
return;
|
|
|
|
pci_info(gpu, "Enabling HDA controller\n");
|
|
pci_write_config_dword(gpu, 0x488, val | BIT(25));
|
|
|
|
/* The GPU becomes a multi-function device when the HDA is enabled */
|
|
pci_read_config_byte(gpu, PCI_HEADER_TYPE, &hdr_type);
|
|
gpu->multifunction = !!(hdr_type & 0x80);
|
|
}
|
|
DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
|
|
PCI_BASE_CLASS_DISPLAY, 16, quirk_nvidia_hda);
|
|
DECLARE_PCI_FIXUP_CLASS_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
|
|
PCI_BASE_CLASS_DISPLAY, 16, quirk_nvidia_hda);
|
|
|
|
/*
|
|
* Some IDT switches incorrectly flag an ACS Source Validation error on
|
|
* completions for config read requests even though PCIe r4.0, sec
|
|
* 6.12.1.1, says that completions are never affected by ACS Source
|
|
* Validation. Here's the text of IDT 89H32H8G3-YC, erratum #36:
|
|
*
|
|
* Item #36 - Downstream port applies ACS Source Validation to Completions
|
|
* Section 6.12.1.1 of the PCI Express Base Specification 3.1 states that
|
|
* completions are never affected by ACS Source Validation. However,
|
|
* completions received by a downstream port of the PCIe switch from a
|
|
* device that has not yet captured a PCIe bus number are incorrectly
|
|
* dropped by ACS Source Validation by the switch downstream port.
|
|
*
|
|
* The workaround suggested by IDT is to issue a config write to the
|
|
* downstream device before issuing the first config read. This allows the
|
|
* downstream device to capture its bus and device numbers (see PCIe r4.0,
|
|
* sec 2.2.9), thus avoiding the ACS error on the completion.
|
|
*
|
|
* However, we don't know when the device is ready to accept the config
|
|
* write, so we do config reads until we receive a non-Config Request Retry
|
|
* Status, then do the config write.
|
|
*
|
|
* To avoid hitting the erratum when doing the config reads, we disable ACS
|
|
* SV around this process.
|
|
*/
|
|
int pci_idt_bus_quirk(struct pci_bus *bus, int devfn, u32 *l, int timeout)
|
|
{
|
|
int pos;
|
|
u16 ctrl = 0;
|
|
bool found;
|
|
struct pci_dev *bridge = bus->self;
|
|
|
|
pos = bridge->acs_cap;
|
|
|
|
/* Disable ACS SV before initial config reads */
|
|
if (pos) {
|
|
pci_read_config_word(bridge, pos + PCI_ACS_CTRL, &ctrl);
|
|
if (ctrl & PCI_ACS_SV)
|
|
pci_write_config_word(bridge, pos + PCI_ACS_CTRL,
|
|
ctrl & ~PCI_ACS_SV);
|
|
}
|
|
|
|
found = pci_bus_generic_read_dev_vendor_id(bus, devfn, l, timeout);
|
|
|
|
/* Write Vendor ID (read-only) so the endpoint latches its bus/dev */
|
|
if (found)
|
|
pci_bus_write_config_word(bus, devfn, PCI_VENDOR_ID, 0);
|
|
|
|
/* Re-enable ACS_SV if it was previously enabled */
|
|
if (ctrl & PCI_ACS_SV)
|
|
pci_write_config_word(bridge, pos + PCI_ACS_CTRL, ctrl);
|
|
|
|
return found;
|
|
}
|
|
|
|
/*
|
|
* Microsemi Switchtec NTB uses devfn proxy IDs to move TLPs between
|
|
* NT endpoints via the internal switch fabric. These IDs replace the
|
|
* originating requestor ID TLPs which access host memory on peer NTB
|
|
* ports. Therefore, all proxy IDs must be aliased to the NTB device
|
|
* to permit access when the IOMMU is turned on.
|
|
*/
|
|
static void quirk_switchtec_ntb_dma_alias(struct pci_dev *pdev)
|
|
{
|
|
void __iomem *mmio;
|
|
struct ntb_info_regs __iomem *mmio_ntb;
|
|
struct ntb_ctrl_regs __iomem *mmio_ctrl;
|
|
u64 partition_map;
|
|
u8 partition;
|
|
int pp;
|
|
|
|
if (pci_enable_device(pdev)) {
|
|
pci_err(pdev, "Cannot enable Switchtec device\n");
|
|
return;
|
|
}
|
|
|
|
mmio = pci_iomap(pdev, 0, 0);
|
|
if (mmio == NULL) {
|
|
pci_disable_device(pdev);
|
|
pci_err(pdev, "Cannot iomap Switchtec device\n");
|
|
return;
|
|
}
|
|
|
|
pci_info(pdev, "Setting Switchtec proxy ID aliases\n");
|
|
|
|
mmio_ntb = mmio + SWITCHTEC_GAS_NTB_OFFSET;
|
|
mmio_ctrl = (void __iomem *) mmio_ntb + SWITCHTEC_NTB_REG_CTRL_OFFSET;
|
|
|
|
partition = ioread8(&mmio_ntb->partition_id);
|
|
|
|
partition_map = ioread32(&mmio_ntb->ep_map);
|
|
partition_map |= ((u64) ioread32(&mmio_ntb->ep_map + 4)) << 32;
|
|
partition_map &= ~(1ULL << partition);
|
|
|
|
for (pp = 0; pp < (sizeof(partition_map) * 8); pp++) {
|
|
struct ntb_ctrl_regs __iomem *mmio_peer_ctrl;
|
|
u32 table_sz = 0;
|
|
int te;
|
|
|
|
if (!(partition_map & (1ULL << pp)))
|
|
continue;
|
|
|
|
pci_dbg(pdev, "Processing partition %d\n", pp);
|
|
|
|
mmio_peer_ctrl = &mmio_ctrl[pp];
|
|
|
|
table_sz = ioread16(&mmio_peer_ctrl->req_id_table_size);
|
|
if (!table_sz) {
|
|
pci_warn(pdev, "Partition %d table_sz 0\n", pp);
|
|
continue;
|
|
}
|
|
|
|
if (table_sz > 512) {
|
|
pci_warn(pdev,
|
|
"Invalid Switchtec partition %d table_sz %d\n",
|
|
pp, table_sz);
|
|
continue;
|
|
}
|
|
|
|
for (te = 0; te < table_sz; te++) {
|
|
u32 rid_entry;
|
|
u8 devfn;
|
|
|
|
rid_entry = ioread32(&mmio_peer_ctrl->req_id_table[te]);
|
|
devfn = (rid_entry >> 1) & 0xFF;
|
|
pci_dbg(pdev,
|
|
"Aliasing Partition %d Proxy ID %02x.%d\n",
|
|
pp, PCI_SLOT(devfn), PCI_FUNC(devfn));
|
|
pci_add_dma_alias(pdev, devfn, 1);
|
|
}
|
|
}
|
|
|
|
pci_iounmap(pdev, mmio);
|
|
pci_disable_device(pdev);
|
|
}
|
|
#define SWITCHTEC_QUIRK(vid) \
|
|
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_MICROSEMI, vid, \
|
|
PCI_CLASS_BRIDGE_OTHER, 8, quirk_switchtec_ntb_dma_alias)
|
|
|
|
SWITCHTEC_QUIRK(0x8531); /* PFX 24xG3 */
|
|
SWITCHTEC_QUIRK(0x8532); /* PFX 32xG3 */
|
|
SWITCHTEC_QUIRK(0x8533); /* PFX 48xG3 */
|
|
SWITCHTEC_QUIRK(0x8534); /* PFX 64xG3 */
|
|
SWITCHTEC_QUIRK(0x8535); /* PFX 80xG3 */
|
|
SWITCHTEC_QUIRK(0x8536); /* PFX 96xG3 */
|
|
SWITCHTEC_QUIRK(0x8541); /* PSX 24xG3 */
|
|
SWITCHTEC_QUIRK(0x8542); /* PSX 32xG3 */
|
|
SWITCHTEC_QUIRK(0x8543); /* PSX 48xG3 */
|
|
SWITCHTEC_QUIRK(0x8544); /* PSX 64xG3 */
|
|
SWITCHTEC_QUIRK(0x8545); /* PSX 80xG3 */
|
|
SWITCHTEC_QUIRK(0x8546); /* PSX 96xG3 */
|
|
SWITCHTEC_QUIRK(0x8551); /* PAX 24XG3 */
|
|
SWITCHTEC_QUIRK(0x8552); /* PAX 32XG3 */
|
|
SWITCHTEC_QUIRK(0x8553); /* PAX 48XG3 */
|
|
SWITCHTEC_QUIRK(0x8554); /* PAX 64XG3 */
|
|
SWITCHTEC_QUIRK(0x8555); /* PAX 80XG3 */
|
|
SWITCHTEC_QUIRK(0x8556); /* PAX 96XG3 */
|
|
SWITCHTEC_QUIRK(0x8561); /* PFXL 24XG3 */
|
|
SWITCHTEC_QUIRK(0x8562); /* PFXL 32XG3 */
|
|
SWITCHTEC_QUIRK(0x8563); /* PFXL 48XG3 */
|
|
SWITCHTEC_QUIRK(0x8564); /* PFXL 64XG3 */
|
|
SWITCHTEC_QUIRK(0x8565); /* PFXL 80XG3 */
|
|
SWITCHTEC_QUIRK(0x8566); /* PFXL 96XG3 */
|
|
SWITCHTEC_QUIRK(0x8571); /* PFXI 24XG3 */
|
|
SWITCHTEC_QUIRK(0x8572); /* PFXI 32XG3 */
|
|
SWITCHTEC_QUIRK(0x8573); /* PFXI 48XG3 */
|
|
SWITCHTEC_QUIRK(0x8574); /* PFXI 64XG3 */
|
|
SWITCHTEC_QUIRK(0x8575); /* PFXI 80XG3 */
|
|
SWITCHTEC_QUIRK(0x8576); /* PFXI 96XG3 */
|
|
SWITCHTEC_QUIRK(0x4000); /* PFX 100XG4 */
|
|
SWITCHTEC_QUIRK(0x4084); /* PFX 84XG4 */
|
|
SWITCHTEC_QUIRK(0x4068); /* PFX 68XG4 */
|
|
SWITCHTEC_QUIRK(0x4052); /* PFX 52XG4 */
|
|
SWITCHTEC_QUIRK(0x4036); /* PFX 36XG4 */
|
|
SWITCHTEC_QUIRK(0x4028); /* PFX 28XG4 */
|
|
SWITCHTEC_QUIRK(0x4100); /* PSX 100XG4 */
|
|
SWITCHTEC_QUIRK(0x4184); /* PSX 84XG4 */
|
|
SWITCHTEC_QUIRK(0x4168); /* PSX 68XG4 */
|
|
SWITCHTEC_QUIRK(0x4152); /* PSX 52XG4 */
|
|
SWITCHTEC_QUIRK(0x4136); /* PSX 36XG4 */
|
|
SWITCHTEC_QUIRK(0x4128); /* PSX 28XG4 */
|
|
SWITCHTEC_QUIRK(0x4200); /* PAX 100XG4 */
|
|
SWITCHTEC_QUIRK(0x4284); /* PAX 84XG4 */
|
|
SWITCHTEC_QUIRK(0x4268); /* PAX 68XG4 */
|
|
SWITCHTEC_QUIRK(0x4252); /* PAX 52XG4 */
|
|
SWITCHTEC_QUIRK(0x4236); /* PAX 36XG4 */
|
|
SWITCHTEC_QUIRK(0x4228); /* PAX 28XG4 */
|
|
|
|
/*
|
|
* The PLX NTB uses devfn proxy IDs to move TLPs between NT endpoints.
|
|
* These IDs are used to forward responses to the originator on the other
|
|
* side of the NTB. Alias all possible IDs to the NTB to permit access when
|
|
* the IOMMU is turned on.
|
|
*/
|
|
static void quirk_plx_ntb_dma_alias(struct pci_dev *pdev)
|
|
{
|
|
pci_info(pdev, "Setting PLX NTB proxy ID aliases\n");
|
|
/* PLX NTB may use all 256 devfns */
|
|
pci_add_dma_alias(pdev, 0, 256);
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PLX, 0x87b0, quirk_plx_ntb_dma_alias);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PLX, 0x87b1, quirk_plx_ntb_dma_alias);
|
|
|
|
/*
|
|
* On Lenovo Thinkpad P50 SKUs with a Nvidia Quadro M1000M, the BIOS does
|
|
* not always reset the secondary Nvidia GPU between reboots if the system
|
|
* is configured to use Hybrid Graphics mode. This results in the GPU
|
|
* being left in whatever state it was in during the *previous* boot, which
|
|
* causes spurious interrupts from the GPU, which in turn causes us to
|
|
* disable the wrong IRQ and end up breaking the touchpad. Unsurprisingly,
|
|
* this also completely breaks nouveau.
|
|
*
|
|
* Luckily, it seems a simple reset of the Nvidia GPU brings it back to a
|
|
* clean state and fixes all these issues.
|
|
*
|
|
* When the machine is configured in Dedicated display mode, the issue
|
|
* doesn't occur. Fortunately the GPU advertises NoReset+ when in this
|
|
* mode, so we can detect that and avoid resetting it.
|
|
*/
|
|
static void quirk_reset_lenovo_thinkpad_p50_nvgpu(struct pci_dev *pdev)
|
|
{
|
|
void __iomem *map;
|
|
int ret;
|
|
|
|
if (pdev->subsystem_vendor != PCI_VENDOR_ID_LENOVO ||
|
|
pdev->subsystem_device != 0x222e ||
|
|
!pci_reset_supported(pdev))
|
|
return;
|
|
|
|
if (pci_enable_device_mem(pdev))
|
|
return;
|
|
|
|
/*
|
|
* Based on nvkm_device_ctor() in
|
|
* drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
|
|
*/
|
|
map = pci_iomap(pdev, 0, 0x23000);
|
|
if (!map) {
|
|
pci_err(pdev, "Can't map MMIO space\n");
|
|
goto out_disable;
|
|
}
|
|
|
|
/*
|
|
* Make sure the GPU looks like it's been POSTed before resetting
|
|
* it.
|
|
*/
|
|
if (ioread32(map + 0x2240c) & 0x2) {
|
|
pci_info(pdev, FW_BUG "GPU left initialized by EFI, resetting\n");
|
|
ret = pci_reset_bus(pdev);
|
|
if (ret < 0)
|
|
pci_err(pdev, "Failed to reset GPU: %d\n", ret);
|
|
}
|
|
|
|
iounmap(map);
|
|
out_disable:
|
|
pci_disable_device(pdev);
|
|
}
|
|
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, 0x13b1,
|
|
PCI_CLASS_DISPLAY_VGA, 8,
|
|
quirk_reset_lenovo_thinkpad_p50_nvgpu);
|
|
|
|
/*
|
|
* Device [1b21:2142]
|
|
* When in D0, PME# doesn't get asserted when plugging USB 3.0 device.
|
|
*/
|
|
static void pci_fixup_no_d0_pme(struct pci_dev *dev)
|
|
{
|
|
pci_info(dev, "PME# does not work under D0, disabling it\n");
|
|
dev->pme_support &= ~(PCI_PM_CAP_PME_D0 >> PCI_PM_CAP_PME_SHIFT);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ASMEDIA, 0x2142, pci_fixup_no_d0_pme);
|
|
|
|
/*
|
|
* Device 12d8:0x400e [OHCI] and 12d8:0x400f [EHCI]
|
|
*
|
|
* These devices advertise PME# support in all power states but don't
|
|
* reliably assert it.
|
|
*
|
|
* These devices also advertise MSI, but documentation (PI7C9X440SL.pdf)
|
|
* says "The MSI Function is not implemented on this device" in chapters
|
|
* 7.3.27, 7.3.29-7.3.31.
|
|
*/
|
|
static void pci_fixup_no_msi_no_pme(struct pci_dev *dev)
|
|
{
|
|
#ifdef CONFIG_PCI_MSI
|
|
pci_info(dev, "MSI is not implemented on this device, disabling it\n");
|
|
dev->no_msi = 1;
|
|
#endif
|
|
pci_info(dev, "PME# is unreliable, disabling it\n");
|
|
dev->pme_support = 0;
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_PERICOM, 0x400e, pci_fixup_no_msi_no_pme);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_PERICOM, 0x400f, pci_fixup_no_msi_no_pme);
|
|
|
|
static void apex_pci_fixup_class(struct pci_dev *pdev)
|
|
{
|
|
pdev->class = (PCI_CLASS_SYSTEM_OTHER << 8) | pdev->class;
|
|
}
|
|
DECLARE_PCI_FIXUP_CLASS_HEADER(0x1ac1, 0x089a,
|
|
PCI_CLASS_NOT_DEFINED, 8, apex_pci_fixup_class);
|
|
|
|
static void nvidia_ion_ahci_fixup(struct pci_dev *pdev)
|
|
{
|
|
pdev->dev_flags |= PCI_DEV_FLAGS_HAS_MSI_MASKING;
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, 0x0ab8, nvidia_ion_ahci_fixup);
|
|
|
|
static void rom_bar_overlap_defect(struct pci_dev *dev)
|
|
{
|
|
pci_info(dev, "working around ROM BAR overlap defect\n");
|
|
dev->rom_bar_overlap = 1;
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1533, rom_bar_overlap_defect);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1536, rom_bar_overlap_defect);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1537, rom_bar_overlap_defect);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1538, rom_bar_overlap_defect);
|
|
|
|
#ifdef CONFIG_PCIEASPM
|
|
/*
|
|
* Several Intel DG2 graphics devices advertise that they can only tolerate
|
|
* 1us latency when transitioning from L1 to L0, which may prevent ASPM L1
|
|
* from being enabled. But in fact these devices can tolerate unlimited
|
|
* latency. Override their Device Capabilities value to allow ASPM L1 to
|
|
* be enabled.
|
|
*/
|
|
static void aspm_l1_acceptable_latency(struct pci_dev *dev)
|
|
{
|
|
u32 l1_lat = FIELD_GET(PCI_EXP_DEVCAP_L1, dev->devcap);
|
|
|
|
if (l1_lat < 7) {
|
|
dev->devcap |= FIELD_PREP(PCI_EXP_DEVCAP_L1, 7);
|
|
pci_info(dev, "ASPM: overriding L1 acceptable latency from %#x to 0x7\n",
|
|
l1_lat);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x4f80, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x4f81, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x4f82, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x4f83, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x4f84, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x4f85, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x4f86, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x4f87, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x4f88, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x5690, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x5691, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x5692, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x5693, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x5694, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x5695, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x56a0, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x56a1, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x56a2, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x56a3, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x56a4, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x56a5, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x56a6, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x56b0, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x56b1, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x56c0, aspm_l1_acceptable_latency);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x56c1, aspm_l1_acceptable_latency);
|
|
#endif
|
|
|
|
#ifdef CONFIG_PCIE_DPC
|
|
/*
|
|
* Intel Ice Lake, Tiger Lake and Alder Lake BIOS has a bug that clears
|
|
* the DPC RP PIO Log Size of the integrated Thunderbolt PCIe Root
|
|
* Ports.
|
|
*/
|
|
static void dpc_log_size(struct pci_dev *dev)
|
|
{
|
|
u16 dpc, val;
|
|
|
|
dpc = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_DPC);
|
|
if (!dpc)
|
|
return;
|
|
|
|
pci_read_config_word(dev, dpc + PCI_EXP_DPC_CAP, &val);
|
|
if (!(val & PCI_EXP_DPC_CAP_RP_EXT))
|
|
return;
|
|
|
|
if (!((val & PCI_EXP_DPC_RP_PIO_LOG_SIZE) >> 8)) {
|
|
pci_info(dev, "Overriding RP PIO Log Size to 4\n");
|
|
dev->dpc_rp_log_size = 4;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x461f, dpc_log_size);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x462f, dpc_log_size);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x463f, dpc_log_size);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x466e, dpc_log_size);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x8a1d, dpc_log_size);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x8a1f, dpc_log_size);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x8a21, dpc_log_size);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x8a23, dpc_log_size);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a23, dpc_log_size);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a25, dpc_log_size);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a27, dpc_log_size);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a29, dpc_log_size);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a2b, dpc_log_size);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a2d, dpc_log_size);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a2f, dpc_log_size);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a31, dpc_log_size);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0xa73f, dpc_log_size);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0xa76e, dpc_log_size);
|
|
#endif
|