159 lines
4.2 KiB
C
159 lines
4.2 KiB
C
/*
|
|
* Copyright 2014 Advanced Micro Devices, Inc.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
*/
|
|
#include <linux/types.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/log2.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/device.h>
|
|
|
|
#include "kfd_priv.h"
|
|
#include "cik_regs.h"
|
|
#include "kfd_pm4_headers.h"
|
|
#include "kfd_pm4_headers_diq.h"
|
|
#include "kfd_dbgmgr.h"
|
|
#include "kfd_dbgdev.h"
|
|
#include "kfd_device_queue_manager.h"
|
|
|
|
static DEFINE_MUTEX(kfd_dbgmgr_mutex);
|
|
|
|
struct mutex *kfd_get_dbgmgr_mutex(void)
|
|
{
|
|
return &kfd_dbgmgr_mutex;
|
|
}
|
|
|
|
|
|
static void kfd_dbgmgr_uninitialize(struct kfd_dbgmgr *pmgr)
|
|
{
|
|
kfree(pmgr->dbgdev);
|
|
|
|
pmgr->dbgdev = NULL;
|
|
pmgr->pasid = 0;
|
|
pmgr->dev = NULL;
|
|
}
|
|
|
|
void kfd_dbgmgr_destroy(struct kfd_dbgmgr *pmgr)
|
|
{
|
|
if (pmgr) {
|
|
kfd_dbgmgr_uninitialize(pmgr);
|
|
kfree(pmgr);
|
|
}
|
|
}
|
|
|
|
bool kfd_dbgmgr_create(struct kfd_dbgmgr **ppmgr, struct kfd_dev *pdev)
|
|
{
|
|
enum DBGDEV_TYPE type = DBGDEV_TYPE_DIQ;
|
|
struct kfd_dbgmgr *new_buff;
|
|
|
|
if (WARN_ON(!pdev->init_complete))
|
|
return false;
|
|
|
|
new_buff = kfd_alloc_struct(new_buff);
|
|
if (!new_buff) {
|
|
pr_err("Failed to allocate dbgmgr instance\n");
|
|
return false;
|
|
}
|
|
|
|
new_buff->pasid = 0;
|
|
new_buff->dev = pdev;
|
|
new_buff->dbgdev = kfd_alloc_struct(new_buff->dbgdev);
|
|
if (!new_buff->dbgdev) {
|
|
pr_err("Failed to allocate dbgdev instance\n");
|
|
kfree(new_buff);
|
|
return false;
|
|
}
|
|
|
|
/* get actual type of DBGDevice cpsch or not */
|
|
if (pdev->dqm->sched_policy == KFD_SCHED_POLICY_NO_HWS)
|
|
type = DBGDEV_TYPE_NODIQ;
|
|
|
|
kfd_dbgdev_init(new_buff->dbgdev, pdev, type);
|
|
*ppmgr = new_buff;
|
|
|
|
return true;
|
|
}
|
|
|
|
long kfd_dbgmgr_register(struct kfd_dbgmgr *pmgr, struct kfd_process *p)
|
|
{
|
|
if (pmgr->pasid != 0) {
|
|
pr_debug("H/W debugger is already active using pasid 0x%x\n",
|
|
pmgr->pasid);
|
|
return -EBUSY;
|
|
}
|
|
|
|
/* remember pasid */
|
|
pmgr->pasid = p->pasid;
|
|
|
|
/* provide the pqm for diq generation */
|
|
pmgr->dbgdev->pqm = &p->pqm;
|
|
|
|
/* activate the actual registering */
|
|
pmgr->dbgdev->dbgdev_register(pmgr->dbgdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
long kfd_dbgmgr_unregister(struct kfd_dbgmgr *pmgr, struct kfd_process *p)
|
|
{
|
|
/* Is the requests coming from the already registered process? */
|
|
if (pmgr->pasid != p->pasid) {
|
|
pr_debug("H/W debugger is not registered by calling pasid 0x%x\n",
|
|
p->pasid);
|
|
return -EINVAL;
|
|
}
|
|
|
|
pmgr->dbgdev->dbgdev_unregister(pmgr->dbgdev);
|
|
|
|
pmgr->pasid = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
long kfd_dbgmgr_wave_control(struct kfd_dbgmgr *pmgr,
|
|
struct dbg_wave_control_info *wac_info)
|
|
{
|
|
/* Is the requests coming from the already registered process? */
|
|
if (pmgr->pasid != wac_info->process->pasid) {
|
|
pr_debug("H/W debugger support was not registered for requester pasid 0x%x\n",
|
|
wac_info->process->pasid);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return (long) pmgr->dbgdev->dbgdev_wave_control(pmgr->dbgdev, wac_info);
|
|
}
|
|
|
|
long kfd_dbgmgr_address_watch(struct kfd_dbgmgr *pmgr,
|
|
struct dbg_address_watch_info *adw_info)
|
|
{
|
|
/* Is the requests coming from the already registered process? */
|
|
if (pmgr->pasid != adw_info->process->pasid) {
|
|
pr_debug("H/W debugger support was not registered for requester pasid 0x%x\n",
|
|
adw_info->process->pasid);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return (long) pmgr->dbgdev->dbgdev_address_watch(pmgr->dbgdev,
|
|
adw_info);
|
|
}
|
|
|