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drm/amdkfd: Enable SVM on Native mode

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This patch enables SVM capability on GFX9.4.3 when
run in Native mode. It also sets best_prefetch and
best_restore locations to CPU as there is no VRAM.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Acked-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mukul Joshi
2023-01-31 11:23:50 -05:00
committed by Alex Deucher
parent 01ef47477d
commit f4d8b6f5c6
2 changed files with 10 additions and 1 deletions
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8
drivers/gpu/drm/amd/amdkfd/kfd_svm.c
View File

@@ -2543,6 +2543,9 @@ svm_range_best_restore_location(struct svm_range *prange,
return -1;
}
if (node->adev->gmc.is_app_apu)
return 0;
if (prange->preferred_loc == gpuid ||
prange->preferred_loc == KFD_IOCTL_SVM_LOCATION_SYSMEM) {
return prange->preferred_loc;
@@ -3256,6 +3259,11 @@ svm_range_best_prefetch_location(struct svm_range *prange)
goto out;
}
if (bo_node->adev->gmc.is_app_apu) {
best_loc = 0;
goto out;
}
if (p->xnack_enabled)
bitmap_copy(bitmap, prange->bitmap_aip, MAX_GPU_INSTANCE);
else

3
drivers/gpu/drm/amd/amdkfd/kfd_svm.h
View File

@@ -200,7 +200,8 @@ void svm_range_list_lock_and_flush_work(struct svm_range_list *svms, struct mm_s
/* SVM API and HMM page migration work together, device memory type
* is initialized to not 0 when page migration register device memory.
*/
#define KFD_IS_SVM_API_SUPPORTED(dev) ((dev)->pgmap.type != 0)
#define KFD_IS_SVM_API_SUPPORTED(dev) ((dev)->pgmap.type != 0 ||\
(dev)->adev->gmc.is_app_apu)
void svm_range_bo_unref_async(struct svm_range_bo *svm_bo);