Am 28.05.21 um 12:56 schrieb Nirmoy Das:
Allocate PD/PT entries while allocating VM BOs and use that instead of allocating those entries separately. v2: create a new var for num entries. Signed-off-by: Nirmoy Das <nirmoy....@amd.com> --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 34 +++++++++++++++----------- 1 file changed, 20 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 223c63342ecd..7e478ffb7fdf 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -877,6 +877,7 @@ static int amdgpu_vm_pt_create(struct amdgpu_device *adev, struct amdgpu_bo *bo; struct dma_resv *resv; int r; + unsigned int num_entries;
Move that a more up, variables like r and i should be always declared last. Apart from that Reviewed-by: Christian König <christian.koe...@amd.com> Next step should probably be to remove entry->entries. Regards, Christian.
memset(&bp, 0, sizeof(bp)); @@ -886,7 +887,14 @@ static int amdgpu_vm_pt_create(struct amdgpu_device *adev, bp.domain = amdgpu_bo_get_preferred_pin_domain(adev, bp.domain); bp.flags = AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS | AMDGPU_GEM_CREATE_CPU_GTT_USWC; - bp.bo_ptr_size = sizeof(struct amdgpu_bo_vm); + + if (level < AMDGPU_VM_PTB) + num_entries = amdgpu_vm_num_entries(adev, level); + else + num_entries = 0; + + bp.bo_ptr_size = struct_size((*vmbo), entries, num_entries); + if (vm->use_cpu_for_update) bp.flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED; @@ -957,19 +965,14 @@ static int amdgpu_vm_alloc_pts(struct amdgpu_device *adev, struct amdgpu_bo_vm *pt; int r; - if (cursor->level < AMDGPU_VM_PTB && !entry->entries) { - unsigned num_entries; - - num_entries = amdgpu_vm_num_entries(adev, cursor->level); - entry->entries = kvmalloc_array(num_entries, - sizeof(*entry->entries), - GFP_KERNEL | __GFP_ZERO); - if (!entry->entries) - return -ENOMEM; - } - - if (entry->base.bo) + if (entry->base.bo) { + if (cursor->level < AMDGPU_VM_PTB) + entry->entries = + to_amdgpu_bo_vm(entry->base.bo)->entries; + else + entry->entries = NULL; return 0; + } r = amdgpu_vm_pt_create(adev, vm, cursor->level, immediate, &pt); if (r) @@ -981,6 +984,10 @@ static int amdgpu_vm_alloc_pts(struct amdgpu_device *adev, pt_bo = &pt->bo; pt_bo->parent = amdgpu_bo_ref(cursor->parent->base.bo); amdgpu_vm_bo_base_init(&entry->base, vm, pt_bo); + if (cursor->level < AMDGPU_VM_PTB) + entry->entries = pt->entries; + else + entry->entries = NULL; r = amdgpu_vm_clear_bo(adev, vm, pt, immediate); if (r) @@ -1010,7 +1017,6 @@ static void amdgpu_vm_free_table(struct amdgpu_vm_pt *entry) amdgpu_bo_unref(&shadow); amdgpu_bo_unref(&entry->base.bo); } - kvfree(entry->entries); entry->entries = NULL; } -- 2.31.1
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