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radv: make shader BOs read-only for the GPU

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Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Samuel Pitoiset 2018-01-04 15:19:47 +01:00
parent 6e3459eaf4
commit a3c2a86757
3 changed files with 7 additions and 1 deletions
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2
src/amd/vulkan/radv_device.c
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@ -263,6 +263,8 @@ radv_physical_device_init(struct radv_physical_device *device,
*/
device->has_clear_state = device->rad_info.chip_class >= CIK;
device->cpdma_prefetch_writes_memory = device->rad_info.chip_class <= VI;
radv_physical_device_init_mem_types(device);
result = radv_init_wsi(device);

1
src/amd/vulkan/radv_private.h
View file

@ -272,6 +272,7 @@ struct radv_physical_device {
bool has_rbplus; /* if RB+ register exist */
bool rbplus_allowed; /* if RB+ is allowed */
bool has_clear_state;
bool cpdma_prefetch_writes_memory;
/* This is the drivers on-disk cache used as a fallback as opposed to
* the pipeline cache defined by apps.

5
src/amd/vulkan/radv_shader.c
View file

@ -330,7 +330,10 @@ radv_alloc_shader_memory(struct radv_device *device,
slab->size = 256 * 1024;
slab->bo = device->ws->buffer_create(device->ws, slab->size, 256,
RADEON_DOMAIN_VRAM, RADEON_FLAG_NO_INTERPROCESS_SHARING);
RADEON_DOMAIN_VRAM,
RADEON_FLAG_NO_INTERPROCESS_SHARING |
device->physical_device->cpdma_prefetch_writes_memory ?
0 : RADEON_FLAG_READ_ONLY);
slab->ptr = (char*)device->ws->buffer_map(slab->bo);
list_inithead(&slab->shaders);