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winsys/amdgpu: align VA allocations to fragment size v2 

BOs larger than the minimum fragment size should have their VA
alignet to at least the fragment size for optimal performance.

v2: drop unused leftover from initial implementation

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Christian König 2017-05-23 18:40:18 +02:00
parent 51dc5e3df3
commit 5318870f54
3 changed files with 4 additions and 0 deletions
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1
src/amd/common/ac_gpu_info.c
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@ -281,6 +281,7 @@ bool ac_query_gpu_info(int fd, amdgpu_device_handle dev,
memcpy(info->cik_macrotile_mode_array, amdinfo->gb_macro_tile_mode,
sizeof(amdinfo->gb_macro_tile_mode));
info->pte_fragment_size = alignment_info.size_local;
info->gart_page_size = alignment_info.size_remote;
if (info->chip_class == SI)

1
src/amd/common/ac_gpu_info.h
View File

@ -45,6 +45,7 @@ struct radeon_info {
uint32_t pci_id;
enum radeon_family family;
enum chip_class chip_class;
uint32_t pte_fragment_size;
uint32_t gart_page_size;
uint64_t gart_size;
uint64_t vram_size;

2
src/gallium/winsys/amdgpu/drm/amdgpu_bo.c
View File

@ -415,6 +415,8 @@ static struct amdgpu_winsys_bo *amdgpu_create_bo(struct amdgpu_winsys *ws,
}
va_gap_size = ws->check_vm ? MAX2(4 * alignment, 64 * 1024) : 0;
if (size > ws->info.pte_fragment_size)
alignment = MAX2(alignment, ws->info.pte_fragment_size);
r = amdgpu_va_range_alloc(ws->dev, amdgpu_gpu_va_range_general,
size + va_gap_size, alignment, 0, &va, &va_handle, 0);
if (r)