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-rw-r--r--src/amd/vulkan/radv_device.c2
-rw-r--r--src/amd/vulkan/radv_radeon_winsys.h3
-rw-r--r--src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c6
3 files changed, 8 insertions, 3 deletions
diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index b64a02380d6..ae0a76137e7 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -2789,7 +2789,7 @@ VkResult radv_CreateEvent(
event->bo = device->ws->buffer_create(device->ws, 8, 8,
RADEON_DOMAIN_GTT,
- RADEON_FLAG_CPU_ACCESS);
+ RADEON_FLAG_VA_UNCACHED | RADEON_FLAG_CPU_ACCESS);
if (!event->bo) {
vk_free2(&device->alloc, pAllocator, event);
return VK_ERROR_OUT_OF_DEVICE_MEMORY;
diff --git a/src/amd/vulkan/radv_radeon_winsys.h b/src/amd/vulkan/radv_radeon_winsys.h
index 8e2ba7431a7..a9c1f54c238 100644
--- a/src/amd/vulkan/radv_radeon_winsys.h
+++ b/src/amd/vulkan/radv_radeon_winsys.h
@@ -51,7 +51,8 @@ enum radeon_bo_flag { /* bitfield */
RADEON_FLAG_GTT_WC = (1 << 0),
RADEON_FLAG_CPU_ACCESS = (1 << 1),
RADEON_FLAG_NO_CPU_ACCESS = (1 << 2),
- RADEON_FLAG_VIRTUAL = (1 << 3)
+ RADEON_FLAG_VIRTUAL = (1 << 3),
+ RADEON_FLAG_VA_UNCACHED = (1 << 4),
};
enum radeon_bo_usage { /* bitfield */
diff --git a/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c b/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c
index 95290a468e7..325f8752874 100644
--- a/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c
+++ b/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_bo.c
@@ -340,7 +340,11 @@ radv_amdgpu_winsys_bo_create(struct radeon_winsys *_ws,
goto error_bo_alloc;
}
- r = radv_amdgpu_bo_va_op(ws->dev, buf_handle, 0, size, va, 0, AMDGPU_VA_OP_MAP);
+
+ uint32_t va_flags = 0;
+ if (flags & RADEON_FLAG_VA_UNCACHED)
+ va_flags |= AMDGPU_VM_MTYPE_UC;
+ r = radv_amdgpu_bo_va_op(ws->dev, buf_handle, 0, size, va, flags, AMDGPU_VA_OP_MAP);
if (r)
goto error_va_map;