diff options
| author | Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> | 2018-11-26 03:28:05 +0100 |
|---|---|---|
| committer | Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> | 2018-11-27 22:17:42 +0100 |
| commit | 6569644bb6e1f58fd739d83bd4dc42e6af6b6097 (patch) | |
| tree | 992479e82a10c7f075f37340f04b13b40ba11b7a | |
| parent | 76945e4140833128759747dcd9cd335e423ebd25 (diff) | |
radv: Align large buffers to the fragment size.
Improves performance in Talos by about 15% (and significant improvements
in RotR and possibly other but did not bench with final patch) on
kernel 4.19 and earlier.
On 4.20+ a similar effect comes from
433ca054949a "drm/amdgpu: try allocating VRAM as power of two"
v2: Do not impact the alignment of the physical memory.
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
CC: <mesa-stable@lists.freedesktop.org>
| -rw-r--r-- | src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c b/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c index 25764d93f6a..482cf0f6659 100644 --- a/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c +++ b/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c @@ -304,8 +304,12 @@ radv_amdgpu_winsys_bo_create(struct radeon_winsys *_ws, return NULL; } + unsigned virt_alignment = alignment; + if (size >= ws->info.pte_fragment_size) + virt_alignment = MAX2(virt_alignment, ws->info.pte_fragment_size); + r = amdgpu_va_range_alloc(ws->dev, amdgpu_gpu_va_range_general, - size, alignment, 0, &va, &va_handle, + size, virt_alignment, 0, &va, &va_handle, (flags & RADEON_FLAG_32BIT ? AMDGPU_VA_RANGE_32_BIT : 0) | AMDGPU_VA_RANGE_HIGH); if (r) |