diff options
| -rw-r--r-- | src/gallium/winsys/amdgpu/drm/amdgpu_bo.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c b/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c index e1b80971327..c2e237bb599 100644 --- a/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c +++ b/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c @@ -489,12 +489,22 @@ static struct amdgpu_winsys_bo *amdgpu_create_bo(struct amdgpu_winsys *ws, va_gap_size = ws->check_vm ? MAX2(4 * alignment, 64 * 1024) : 0; - unsigned vm_alignment = alignment; + uint64_t vm_alignment = alignment; /* Increase the VM alignment for faster address translation. */ if (size >= ws->info.pte_fragment_size) vm_alignment = MAX2(vm_alignment, ws->info.pte_fragment_size); + /* Gfx9: Increase the VM alignment to the most significant bit set + * in the size for faster address translation. + */ + if (ws->info.chip_class >= GFX9) { + unsigned msb = util_last_bit64(size); /* 0 = no bit is set */ + uint64_t msb_alignment = msb ? 1ull << (msb - 1) : 0; + + vm_alignment = MAX2(vm_alignment, msb_alignment); + } + r = amdgpu_va_range_alloc(ws->dev, amdgpu_gpu_va_range_general, size + va_gap_size, vm_alignment, 0, &va, &va_handle, (flags & RADEON_FLAG_32BIT ? AMDGPU_VA_RANGE_32_BIT : 0) | |