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drm/amdkfd: Support process XNACK mode dynamic change

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Update queue qpd is done for the first queue creation of the process,
if the device support XNACK mode per process, update qpd setup
sh_mem_config based on the process XNACK mode, to support the process
destroy all queues, change XNACK mode, and then create queues.

Add helper macro KFD_SUPPORT_XNACK_PER_PROCESS to remove duplicate code
and add new ASICs support in future.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Philip Yang 2023-01-12 14:08:36 -05:00 committed by Alex Deucher
parent ced6950276
commit 24294e7b15
3 changed files with 15 additions and 16 deletions
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27
drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v9.c
View File

@ -59,30 +59,27 @@ static int update_qpd_v9(struct device_queue_manager *dqm,
/* check if sh_mem_config register already configured */
if (qpd->sh_mem_config == 0) {
qpd->sh_mem_config =
SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
qpd->sh_mem_config = SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT;
if (KFD_GC_VERSION(dqm->dev) == IP_VERSION(9, 4, 2)) {
/* Aldebaran can safely support different XNACK modes
* per process
*/
if (!pdd->process->xnack_enabled)
qpd->sh_mem_config |=
1 << SH_MEM_CONFIG__RETRY_DISABLE__SHIFT;
} else if (dqm->dev->noretry &&
!dqm->dev->use_iommu_v2) {
qpd->sh_mem_config |=
1 << SH_MEM_CONFIG__RETRY_DISABLE__SHIFT;
}
if (dqm->dev->noretry && !dqm->dev->use_iommu_v2)
qpd->sh_mem_config |= 1 << SH_MEM_CONFIG__RETRY_DISABLE__SHIFT;
qpd->sh_mem_ape1_limit = 0;
qpd->sh_mem_ape1_base = 0;
}
if (KFD_SUPPORT_XNACK_PER_PROCESS(dqm->dev)) {
if (!pdd->process->xnack_enabled)
qpd->sh_mem_config |= 1 << SH_MEM_CONFIG__RETRY_DISABLE__SHIFT;
else
qpd->sh_mem_config &= ~(1 << SH_MEM_CONFIG__RETRY_DISABLE__SHIFT);
}
qpd->sh_mem_bases = compute_sh_mem_bases_64bit(pdd);
pr_debug("sh_mem_bases 0x%X\n", qpd->sh_mem_bases);
pr_debug("sh_mem_bases 0x%X sh_mem_config 0x%X\n", qpd->sh_mem_bases,
qpd->sh_mem_config);
return 0;
}

2
drivers/gpu/drm/amd/amdkfd/kfd_priv.h
View File

@ -206,6 +206,8 @@ enum cache_policy {
#define KFD_GC_VERSION(dev) ((dev)->adev->ip_versions[GC_HWIP][0])
#define KFD_IS_SOC15(dev) ((KFD_GC_VERSION(dev)) >= (IP_VERSION(9, 0, 1)))
#define KFD_SUPPORT_XNACK_PER_PROCESS(dev)\
(KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 2))
struct kfd_event_interrupt_class {
bool (*interrupt_isr)(struct kfd_dev *dev,

2
drivers/gpu/drm/amd/amdkfd/kfd_process.c
View File

@ -1330,7 +1330,7 @@ bool kfd_process_xnack_mode(struct kfd_process *p, bool supported)
* per-process XNACK mode selection. But let the dev->noretry
* setting still influence the default XNACK mode.
*/
if (supported && KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 2))
if (supported && KFD_SUPPORT_XNACK_PER_PROCESS(dev))
continue;
/* GFXv10 and later GPUs do not support shader preemption