From: Christian König <christian.koe...@amd.com>
BOs larger than the minimum fragment size should have their VA
alignet to at least the fragment size for optimal performance.
Signed-off-by: Christian König <christian.koe...@amd.com>
---
src/amd/common/ac_gpu_info.c | 1 +
src/amd/common/ac_gpu_info.h | 1 +
src/gallium/winsys/amdgpu/drm/amdgpu_bo.c | 2 ++
src/gallium/winsys/amdgpu/drm/amdgpu_winsys.h | 1 +
4 files changed, 5 insertions(+)
diff --git a/src/amd/common/ac_gpu_info.c b/src/amd/common/ac_gpu_info.c
index cf5d6e1..0b4933e 100644
--- a/src/amd/common/ac_gpu_info.c
+++ b/src/amd/common/ac_gpu_info.c
@@ -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)
diff --git a/src/amd/common/ac_gpu_info.h b/src/amd/common/ac_gpu_info.h
index d8029ef..3785eb4 100644
--- a/src/amd/common/ac_gpu_info.h
+++ b/src/amd/common/ac_gpu_info.h
@@ -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;
diff --git a/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c
b/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c
index 6bdcce5..4017411 100644
--- a/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c
+++ b/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c
@@ -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)
diff --git a/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.h
b/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.h
index 896a463..88975e2 100644
--- a/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.h
+++ b/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.h
@@ -73,6 +73,7 @@ struct amdgpu_winsys {
struct amdgpu_gpu_info amdinfo;
ADDR_HANDLE addrlib;
+ struct amdgpu_buffer_size_alignments alignments;
bool check_vm;
--
2.7.4
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