Signed-off-by: Samuel Pitoiset <samuel.pitoi...@gmail.com>
---
src/amd/vulkan/radv_device.c | 2 ++
src/amd/vulkan/radv_private.h | 1 +
src/amd/vulkan/radv_shader.c | 5 ++++-
3 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index 5f78af624b..528d3539c9 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -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);
diff --git a/src/amd/vulkan/radv_private.h b/src/amd/vulkan/radv_private.h
index bae353c0e5..6a19394ad5 100644
--- a/src/amd/vulkan/radv_private.h
+++ b/src/amd/vulkan/radv_private.h
@@ -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.
diff --git a/src/amd/vulkan/radv_shader.c b/src/amd/vulkan/radv_shader.c
index ab8ba42511..74f2384a64 100644
--- a/src/amd/vulkan/radv_shader.c
+++ b/src/amd/vulkan/radv_shader.c
@@ -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);
--
2.15.1
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