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Commit e3a1b32a authored by Christian König's avatar Christian König Committed by Alex Deucher
Browse files

drm/amdgpu: avoid the modulo in amdgpu_vm_get_entry 



We can do this with a simple mask as well.

Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Reviewed-by: default avatarChunming Zhou <david1.zhou@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 2ffe31de

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c

+3 −3
Original line number Diff line number Diff line
@@ -1285,11 +1285,11 @@ void amdgpu_vm_get_entry(struct amdgpu_pte_update_params *p, uint64_t addr, 
	*parent = NULL;

	*entry = &p->vm->root;

	while ((*entry)->entries) {

		unsigned idx = addr >> amdgpu_vm_level_shift(p->adev, level++);

		unsigned shift = amdgpu_vm_level_shift(p->adev, level++);



		idx %= amdgpu_bo_size((*entry)->base.bo) / 8;

		*parent = *entry;

		*entry = &(*entry)->entries[idx];

		*entry = &(*entry)->entries[addr >> shift];

		addr &= (1ULL << shift) - 1;

	}



	if (level != p->adev->vm_manager.num_level)