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winsys/amdgpu: use 128KB BOs for suballocations of up to 64KB BOs

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This decreases the number of BOs, but might also increase memory usage.
It's better for small textures.

The gameplay is on the far right:
https://people.freedesktop.org/~mareko/suballoc.svg

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This commit is contained in:
Marek Olšák 2017-06-27 21:54:20 +02:00
parent c784015643
commit 0591df025b
2 changed files with 5 additions and 3 deletions
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3
src/gallium/winsys/amdgpu/drm/amdgpu_bo.c
View file

@ -502,8 +502,9 @@ struct pb_slab *amdgpu_bo_slab_alloc(void *priv, unsigned heap,
if (!slab)
return NULL;
unsigned slab_size = 1 << AMDGPU_SLAB_BO_SIZE_LOG2;
slab->buffer = amdgpu_winsys_bo(amdgpu_bo_create(&ws->base,
64 * 1024, 64 * 1024,
slab_size, slab_size,
domains, flags));
if (!slab->buffer)
goto fail;

5
src/gallium/winsys/amdgpu/drm/amdgpu_winsys.h
View file

@ -41,8 +41,9 @@
struct amdgpu_cs;
#define AMDGPU_SLAB_MIN_SIZE_LOG2 9
#define AMDGPU_SLAB_MAX_SIZE_LOG2 14
#define AMDGPU_SLAB_MIN_SIZE_LOG2 9 /* 512 bytes */
#define AMDGPU_SLAB_MAX_SIZE_LOG2 16 /* 64 KB */
#define AMDGPU_SLAB_BO_SIZE_LOG2 17 /* 128 KB */
struct amdgpu_winsys {
struct radeon_winsys base;