diff options
| author | Christian König <christian.koenig@amd.com> | 2018-09-07 15:21:15 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-09-13 23:14:10 +0300 |
| commit | 1b1d5c43db58d236d4a6c9700ef9395b3fc129fb (patch) | |
| tree | 2ab3fdfba88ec0629935b583044feaf4b9bf247f /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | |
| parent | dfcd99f6273e7ae9aae10eafacc5521018bee143 (diff) | |
| download | linux-1b1d5c43db58d236d4a6c9700ef9395b3fc129fb.tar.xz | |
drm/amdgpu: use the maximum possible fragment size on Vega/Raven
The fragment size controls only the L1 on Vega/Raven and we now don't
have any extra overhead any more because of larger fragments.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 45343501c1f3..2d2d6197c3dc 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -1540,8 +1540,16 @@ static void amdgpu_vm_fragment(struct amdgpu_pte_update_params *params, * larger. Thus, we try to use large fragments wherever possible. * Userspace can support this by aligning virtual base address and * allocation size to the fragment size. + * + * Starting with Vega10 the fragment size only controls the L1. The L2 + * is now directly feed with small/huge/giant pages from the walker. */ - unsigned max_frag = params->adev->vm_manager.fragment_size; + unsigned max_frag; + + if (params->adev->asic_type < CHIP_VEGA10) + max_frag = params->adev->vm_manager.fragment_size; + else + max_frag = 31; /* system pages are non continuously */ if (params->src || !(flags & AMDGPU_PTE_VALID)) { |