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drm/amdgpu: have bos for PDs/PTS cpu accessible when kfd uses cpu to update vm

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When kfd uses cpu to update vm iterates all current PDs/PTs bos, adds
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED flag and kmap them to kernel virtual
address space before kfd updates the vm that was created by gfx.

Signed-off-by: Xiaogang Chen <Xiaogang.Chen@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Xiaogang Chen
2023-06-30 11:38:35 -05:00
committed by Alex Deucher
parent 9041b53a59
commit eb58ad143d
4 changed files with 35 additions and 7 deletions
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1
drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c
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@@ -31,6 +31,7 @@
*/
static int amdgpu_vm_cpu_map_table(struct amdgpu_bo_vm *table)
{
table->bo.flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
return amdgpu_bo_kmap(&table->bo, NULL);
}