538 lines
12 KiB
C
538 lines
12 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family
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* of PCI-SCSI IO processors.
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*
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* Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr>
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*
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* This driver is derived from the Linux sym53c8xx driver.
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* Copyright (C) 1998-2000 Gerard Roudier
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*
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* The sym53c8xx driver is derived from the ncr53c8xx driver that had been
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* a port of the FreeBSD ncr driver to Linux-1.2.13.
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*
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* The original ncr driver has been written for 386bsd and FreeBSD by
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* Wolfgang Stanglmeier <wolf@cologne.de>
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* Stefan Esser <se@mi.Uni-Koeln.de>
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* Copyright (C) 1994 Wolfgang Stanglmeier
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*
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* Other major contributions:
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*
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* NVRAM detection and reading.
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* Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk>
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*
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*-----------------------------------------------------------------------------
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*/
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#include "sym_glue.h"
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/*
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* Macros used for all firmwares.
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*/
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#define SYM_GEN_A(s, label) ((short) offsetof(s, label)),
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#define SYM_GEN_B(s, label) ((short) offsetof(s, label)),
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#define SYM_GEN_Z(s, label) ((short) offsetof(s, label)),
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#define PADDR_A(label) SYM_GEN_PADDR_A(struct SYM_FWA_SCR, label)
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#define PADDR_B(label) SYM_GEN_PADDR_B(struct SYM_FWB_SCR, label)
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#if SYM_CONF_GENERIC_SUPPORT
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/*
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* Allocate firmware #1 script area.
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*/
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#define SYM_FWA_SCR sym_fw1a_scr
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#define SYM_FWB_SCR sym_fw1b_scr
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#define SYM_FWZ_SCR sym_fw1z_scr
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#include "sym_fw1.h"
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static struct sym_fwa_ofs sym_fw1a_ofs = {
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SYM_GEN_FW_A(struct SYM_FWA_SCR)
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};
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static struct sym_fwb_ofs sym_fw1b_ofs = {
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SYM_GEN_FW_B(struct SYM_FWB_SCR)
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};
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static struct sym_fwz_ofs sym_fw1z_ofs = {
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SYM_GEN_FW_Z(struct SYM_FWZ_SCR)
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};
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#undef SYM_FWA_SCR
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#undef SYM_FWB_SCR
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#undef SYM_FWZ_SCR
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#endif /* SYM_CONF_GENERIC_SUPPORT */
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/*
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* Allocate firmware #2 script area.
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*/
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#define SYM_FWA_SCR sym_fw2a_scr
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#define SYM_FWB_SCR sym_fw2b_scr
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#define SYM_FWZ_SCR sym_fw2z_scr
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#include "sym_fw2.h"
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static struct sym_fwa_ofs sym_fw2a_ofs = {
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SYM_GEN_FW_A(struct SYM_FWA_SCR)
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};
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static struct sym_fwb_ofs sym_fw2b_ofs = {
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SYM_GEN_FW_B(struct SYM_FWB_SCR)
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SYM_GEN_B(struct SYM_FWB_SCR, start64)
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SYM_GEN_B(struct SYM_FWB_SCR, pm_handle)
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};
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static struct sym_fwz_ofs sym_fw2z_ofs = {
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SYM_GEN_FW_Z(struct SYM_FWZ_SCR)
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};
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#undef SYM_FWA_SCR
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#undef SYM_FWB_SCR
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#undef SYM_FWZ_SCR
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#undef SYM_GEN_A
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#undef SYM_GEN_B
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#undef SYM_GEN_Z
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#undef PADDR_A
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#undef PADDR_B
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#if SYM_CONF_GENERIC_SUPPORT
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/*
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* Patch routine for firmware #1.
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*/
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static void
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sym_fw1_patch(struct Scsi_Host *shost)
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{
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struct sym_hcb *np = sym_get_hcb(shost);
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struct sym_fw1a_scr *scripta0;
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struct sym_fw1b_scr *scriptb0;
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scripta0 = (struct sym_fw1a_scr *) np->scripta0;
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scriptb0 = (struct sym_fw1b_scr *) np->scriptb0;
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/*
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* Remove LED support if not needed.
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*/
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if (!(np->features & FE_LED0)) {
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scripta0->idle[0] = cpu_to_scr(SCR_NO_OP);
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scripta0->reselected[0] = cpu_to_scr(SCR_NO_OP);
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scripta0->start[0] = cpu_to_scr(SCR_NO_OP);
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}
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#ifdef SYM_CONF_IARB_SUPPORT
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/*
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* If user does not want to use IMMEDIATE ARBITRATION
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* when we are reselected while attempting to arbitrate,
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* patch the SCRIPTS accordingly with a SCRIPT NO_OP.
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*/
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if (!SYM_CONF_SET_IARB_ON_ARB_LOST)
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scripta0->ungetjob[0] = cpu_to_scr(SCR_NO_OP);
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#endif
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/*
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* Patch some data in SCRIPTS.
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* - start and done queue initial bus address.
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* - target bus address table bus address.
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*/
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scriptb0->startpos[0] = cpu_to_scr(np->squeue_ba);
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scriptb0->done_pos[0] = cpu_to_scr(np->dqueue_ba);
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scriptb0->targtbl[0] = cpu_to_scr(np->targtbl_ba);
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}
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#endif /* SYM_CONF_GENERIC_SUPPORT */
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/*
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* Patch routine for firmware #2.
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*/
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static void
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sym_fw2_patch(struct Scsi_Host *shost)
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{
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struct sym_data *sym_data = shost_priv(shost);
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struct pci_dev *pdev = sym_data->pdev;
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struct sym_hcb *np = sym_data->ncb;
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struct sym_fw2a_scr *scripta0;
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struct sym_fw2b_scr *scriptb0;
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scripta0 = (struct sym_fw2a_scr *) np->scripta0;
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scriptb0 = (struct sym_fw2b_scr *) np->scriptb0;
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/*
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* Remove LED support if not needed.
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*/
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if (!(np->features & FE_LED0)) {
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scripta0->idle[0] = cpu_to_scr(SCR_NO_OP);
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scripta0->reselected[0] = cpu_to_scr(SCR_NO_OP);
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scripta0->start[0] = cpu_to_scr(SCR_NO_OP);
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}
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#if SYM_CONF_DMA_ADDRESSING_MODE == 2
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/*
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* Remove useless 64 bit DMA specific SCRIPTS,
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* when this feature is not available.
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*/
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if (!use_dac(np)) {
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scripta0->is_dmap_dirty[0] = cpu_to_scr(SCR_NO_OP);
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scripta0->is_dmap_dirty[1] = 0;
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scripta0->is_dmap_dirty[2] = cpu_to_scr(SCR_NO_OP);
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scripta0->is_dmap_dirty[3] = 0;
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}
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#endif
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#ifdef SYM_CONF_IARB_SUPPORT
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/*
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* If user does not want to use IMMEDIATE ARBITRATION
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* when we are reselected while attempting to arbitrate,
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* patch the SCRIPTS accordingly with a SCRIPT NO_OP.
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*/
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if (!SYM_CONF_SET_IARB_ON_ARB_LOST)
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scripta0->ungetjob[0] = cpu_to_scr(SCR_NO_OP);
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#endif
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/*
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* Patch some variable in SCRIPTS.
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* - start and done queue initial bus address.
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* - target bus address table bus address.
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*/
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scriptb0->startpos[0] = cpu_to_scr(np->squeue_ba);
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scriptb0->done_pos[0] = cpu_to_scr(np->dqueue_ba);
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scriptb0->targtbl[0] = cpu_to_scr(np->targtbl_ba);
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/*
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* Remove the load of SCNTL4 on reselection if not a C10.
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*/
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if (!(np->features & FE_C10)) {
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scripta0->resel_scntl4[0] = cpu_to_scr(SCR_NO_OP);
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scripta0->resel_scntl4[1] = cpu_to_scr(0);
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}
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/*
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* Remove a couple of work-arounds specific to C1010 if
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* they are not desirable. See `sym_fw2.h' for more details.
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*/
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if (!(pdev->device == PCI_DEVICE_ID_LSI_53C1010_66 &&
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pdev->revision < 0x1 &&
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np->pciclk_khz < 60000)) {
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scripta0->datao_phase[0] = cpu_to_scr(SCR_NO_OP);
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scripta0->datao_phase[1] = cpu_to_scr(0);
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}
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if (!(pdev->device == PCI_DEVICE_ID_LSI_53C1010_33 /* &&
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pdev->revision < 0xff */)) {
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scripta0->sel_done[0] = cpu_to_scr(SCR_NO_OP);
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scripta0->sel_done[1] = cpu_to_scr(0);
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}
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/*
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* Patch some other variables in SCRIPTS.
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* These ones are loaded by the SCRIPTS processor.
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*/
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scriptb0->pm0_data_addr[0] =
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cpu_to_scr(np->scripta_ba +
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offsetof(struct sym_fw2a_scr, pm0_data));
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scriptb0->pm1_data_addr[0] =
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cpu_to_scr(np->scripta_ba +
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offsetof(struct sym_fw2a_scr, pm1_data));
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}
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/*
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* Fill the data area in scripts.
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* To be done for all firmwares.
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*/
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static void
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sym_fw_fill_data (u32 *in, u32 *out)
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{
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int i;
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for (i = 0; i < SYM_CONF_MAX_SG; i++) {
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*in++ = SCR_CHMOV_TBL ^ SCR_DATA_IN;
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*in++ = offsetof (struct sym_dsb, data[i]);
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*out++ = SCR_CHMOV_TBL ^ SCR_DATA_OUT;
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*out++ = offsetof (struct sym_dsb, data[i]);
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}
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}
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/*
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* Setup useful script bus addresses.
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* To be done for all firmwares.
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*/
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static void
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sym_fw_setup_bus_addresses(struct sym_hcb *np, struct sym_fw *fw)
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{
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u32 *pa;
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u_short *po;
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int i;
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/*
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* Build the bus address table for script A
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* from the script A offset table.
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*/
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po = (u_short *) fw->a_ofs;
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pa = (u32 *) &np->fwa_bas;
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for (i = 0 ; i < sizeof(np->fwa_bas)/sizeof(u32) ; i++)
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pa[i] = np->scripta_ba + po[i];
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/*
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* Same for script B.
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*/
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po = (u_short *) fw->b_ofs;
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pa = (u32 *) &np->fwb_bas;
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for (i = 0 ; i < sizeof(np->fwb_bas)/sizeof(u32) ; i++)
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pa[i] = np->scriptb_ba + po[i];
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/*
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* Same for script Z.
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*/
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po = (u_short *) fw->z_ofs;
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pa = (u32 *) &np->fwz_bas;
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for (i = 0 ; i < sizeof(np->fwz_bas)/sizeof(u32) ; i++)
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pa[i] = np->scriptz_ba + po[i];
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}
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#if SYM_CONF_GENERIC_SUPPORT
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/*
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* Setup routine for firmware #1.
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*/
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static void
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sym_fw1_setup(struct sym_hcb *np, struct sym_fw *fw)
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{
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struct sym_fw1a_scr *scripta0;
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scripta0 = (struct sym_fw1a_scr *) np->scripta0;
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/*
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* Fill variable parts in scripts.
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*/
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sym_fw_fill_data(scripta0->data_in, scripta0->data_out);
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/*
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* Setup bus addresses used from the C code..
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*/
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sym_fw_setup_bus_addresses(np, fw);
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}
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#endif /* SYM_CONF_GENERIC_SUPPORT */
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/*
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* Setup routine for firmware #2.
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*/
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static void
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sym_fw2_setup(struct sym_hcb *np, struct sym_fw *fw)
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{
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struct sym_fw2a_scr *scripta0;
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scripta0 = (struct sym_fw2a_scr *) np->scripta0;
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/*
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* Fill variable parts in scripts.
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*/
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sym_fw_fill_data(scripta0->data_in, scripta0->data_out);
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/*
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* Setup bus addresses used from the C code..
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*/
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sym_fw_setup_bus_addresses(np, fw);
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}
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/*
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* Allocate firmware descriptors.
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*/
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#if SYM_CONF_GENERIC_SUPPORT
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static struct sym_fw sym_fw1 = SYM_FW_ENTRY(sym_fw1, "NCR-generic");
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#endif /* SYM_CONF_GENERIC_SUPPORT */
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static struct sym_fw sym_fw2 = SYM_FW_ENTRY(sym_fw2, "LOAD/STORE-based");
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/*
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* Find the most appropriate firmware for a chip.
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*/
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struct sym_fw *
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sym_find_firmware(struct sym_chip *chip)
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{
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if (chip->features & FE_LDSTR)
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return &sym_fw2;
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#if SYM_CONF_GENERIC_SUPPORT
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else if (!(chip->features & (FE_PFEN|FE_NOPM|FE_DAC)))
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return &sym_fw1;
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#endif
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else
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return NULL;
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}
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/*
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* Bind a script to physical addresses.
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*/
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void sym_fw_bind_script(struct sym_hcb *np, u32 *start, int len)
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{
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u32 opcode, new, old, tmp1, tmp2;
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u32 *end, *cur;
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int relocs;
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cur = start;
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end = start + len/4;
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while (cur < end) {
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opcode = *cur;
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/*
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* If we forget to change the length
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* in scripts, a field will be
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* padded with 0. This is an illegal
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* command.
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*/
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if (opcode == 0) {
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printf ("%s: ERROR0 IN SCRIPT at %d.\n",
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sym_name(np), (int) (cur-start));
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++cur;
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continue;
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}
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/*
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* We use the bogus value 0xf00ff00f ;-)
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* to reserve data area in SCRIPTS.
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*/
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if (opcode == SCR_DATA_ZERO) {
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*cur++ = 0;
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continue;
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}
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if (DEBUG_FLAGS & DEBUG_SCRIPT)
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printf ("%d: <%x>\n", (int) (cur-start),
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(unsigned)opcode);
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/*
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* We don't have to decode ALL commands
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*/
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switch (opcode >> 28) {
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case 0xf:
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/*
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* LOAD / STORE DSA relative, don't relocate.
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*/
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relocs = 0;
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break;
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case 0xe:
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/*
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* LOAD / STORE absolute.
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*/
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relocs = 1;
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break;
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case 0xc:
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/*
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* COPY has TWO arguments.
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*/
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relocs = 2;
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tmp1 = cur[1];
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tmp2 = cur[2];
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if ((tmp1 ^ tmp2) & 3) {
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printf ("%s: ERROR1 IN SCRIPT at %d.\n",
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sym_name(np), (int) (cur-start));
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}
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/*
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* If PREFETCH feature not enabled, remove
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* the NO FLUSH bit if present.
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*/
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if ((opcode & SCR_NO_FLUSH) &&
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!(np->features & FE_PFEN)) {
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opcode = (opcode & ~SCR_NO_FLUSH);
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}
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break;
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case 0x0:
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/*
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* MOVE/CHMOV (absolute address)
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*/
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if (!(np->features & FE_WIDE))
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opcode = (opcode | OPC_MOVE);
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relocs = 1;
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break;
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case 0x1:
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/*
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* MOVE/CHMOV (table indirect)
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*/
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if (!(np->features & FE_WIDE))
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opcode = (opcode | OPC_MOVE);
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relocs = 0;
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break;
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#ifdef SYM_CONF_TARGET_ROLE_SUPPORT
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case 0x2:
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/*
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* MOVE/CHMOV in target role (absolute address)
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*/
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opcode &= ~0x20000000;
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if (!(np->features & FE_WIDE))
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opcode = (opcode & ~OPC_TCHMOVE);
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relocs = 1;
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break;
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case 0x3:
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/*
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* MOVE/CHMOV in target role (table indirect)
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*/
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opcode &= ~0x20000000;
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if (!(np->features & FE_WIDE))
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opcode = (opcode & ~OPC_TCHMOVE);
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relocs = 0;
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break;
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#endif
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case 0x8:
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/*
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* JUMP / CALL
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* don't relocate if relative :-)
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*/
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if (opcode & 0x00800000)
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relocs = 0;
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else if ((opcode & 0xf8400000) == 0x80400000)/*JUMP64*/
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relocs = 2;
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else
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relocs = 1;
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break;
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case 0x4:
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case 0x5:
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case 0x6:
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case 0x7:
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relocs = 1;
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break;
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default:
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relocs = 0;
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break;
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}
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/*
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* Scriptify:) the opcode.
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*/
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*cur++ = cpu_to_scr(opcode);
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/*
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* If no relocation, assume 1 argument
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* and just scriptize:) it.
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*/
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if (!relocs) {
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*cur = cpu_to_scr(*cur);
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++cur;
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continue;
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}
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/*
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* Otherwise performs all needed relocations.
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*/
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while (relocs--) {
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old = *cur;
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switch (old & RELOC_MASK) {
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case RELOC_REGISTER:
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new = (old & ~RELOC_MASK) + np->mmio_ba;
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break;
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case RELOC_LABEL_A:
|
|
new = (old & ~RELOC_MASK) + np->scripta_ba;
|
|
break;
|
|
case RELOC_LABEL_B:
|
|
new = (old & ~RELOC_MASK) + np->scriptb_ba;
|
|
break;
|
|
case RELOC_SOFTC:
|
|
new = (old & ~RELOC_MASK) + np->hcb_ba;
|
|
break;
|
|
case 0:
|
|
/*
|
|
* Don't relocate a 0 address.
|
|
* They are mostly used for patched or
|
|
* script self-modified areas.
|
|
*/
|
|
if (old == 0) {
|
|
new = old;
|
|
break;
|
|
}
|
|
fallthrough;
|
|
default:
|
|
new = 0;
|
|
panic("sym_fw_bind_script: "
|
|
"weird relocation %x\n", old);
|
|
break;
|
|
}
|
|
|
|
*cur++ = cpu_to_scr(new);
|
|
}
|
|
}
|
|
}
|