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drm/amdkfd: new range accessible by all GPUs

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If xnack is on, new range is created to recover retry vm fault or
created by SVM API calls, set all GPUs have access to the range.

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 2021-05-05 10:32:27 -04:00 committed by Alex Deucher
parent 6e6fe7c928
commit a9a76beed2
1 changed files with 8 additions and 4 deletions
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12
drivers/gpu/drm/amd/amdkfd/kfd_svm.c
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@ -258,6 +258,7 @@ svm_range *svm_range_new(struct svm_range_list *svms, uint64_t start,
{
uint64_t size = last - start + 1;
struct svm_range *prange;
struct kfd_process *p;
prange = kzalloc(sizeof(*prange), GFP_KERNEL);
if (!prange)
@ -277,6 +278,11 @@ svm_range *svm_range_new(struct svm_range_list *svms, uint64_t start,
prange->validate_timestamp = 0;
mutex_init(&prange->migrate_mutex);
mutex_init(&prange->lock);
p = container_of(svms, struct kfd_process, svms);
if (p->xnack_enabled)
bitmap_fill(prange->bitmap_access, MAX_GPU_INSTANCE);
svm_range_set_default_attributes(&prange->preferred_loc,
&prange->prefetch_loc,
&prange->granularity, &prange->flags);
@ -2246,7 +2252,7 @@ svm_range *svm_range_create_unregistered_range(struct amdgpu_device *adev,
prange = svm_range_new(&p->svms, start, last);
if (!prange) {
pr_debug("Failed to create prange in address [0x%llx]\\n", addr);
pr_debug("Failed to create prange in address [0x%llx]\n", addr);
return NULL;
}
if (kfd_process_gpuid_from_kgd(p, adev, &gpuid, &gpuidx)) {
@ -2254,9 +2260,7 @@ svm_range *svm_range_create_unregistered_range(struct amdgpu_device *adev,
svm_range_free(prange);
return NULL;
}
prange->preferred_loc = gpuid;
prange->actual_loc = 0;
/* Gurantee prange is migrate it */
svm_range_add_to_svms(prange);
svm_range_add_notifier_locked(mm, prange);