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venus: fix AHB VkBuffer memory requirement 

Layering AHB on top of dma_buf_fd requires venus to combine the memory
type bits internally for VkBuffer.

Signed-off-by: Yiwei Zhang <zzyiwei@chromium.org>
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11661>
This commit is contained in:
Yiwei Zhang 2021-06-30 18:39:00 +00:00 committed by Marge Bot
parent 4f2b98dc40
commit 73c71a37f4
1 changed files with 43 additions and 1 deletions
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44
src/virtio/vulkan/vn_android.c
View File

@ -1133,8 +1133,50 @@ vn_android_buffer_from_ahb(struct vn_device *dev,
const VkAllocationCallbacks *alloc,
struct vn_buffer **out_buf)
{
const uint32_t format = AHARDWAREBUFFER_FORMAT_BLOB;
/* ensure dma_buf_memory_type_bits covers host visible usage */
const uint64_t usage = AHARDWAREBUFFER_USAGE_GPU_DATA_BUFFER |
AHARDWAREBUFFER_USAGE_CPU_READ_RARELY |
AHARDWAREBUFFER_USAGE_CPU_WRITE_RARELY;
AHardwareBuffer *ahb = NULL;
int dma_buf_fd = -1;
uint64_t alloc_size = 0;
uint32_t mem_type_bits = 0;
struct vn_android_buffer_create_info local_info;
VkResult result;
ahb = vn_android_ahb_allocate(4096, 1, 1, format, usage);
if (!ahb)
return VK_ERROR_OUT_OF_HOST_MEMORY;
result = vn_android_get_dma_buf_from_native_handle(
AHardwareBuffer_getNativeHandle(ahb), &dma_buf_fd);
if (result != VK_SUCCESS) {
AHardwareBuffer_release(ahb);
return result;
}
result = vn_get_memory_dma_buf_properties(dev, dma_buf_fd, &alloc_size,
&mem_type_bits);
AHardwareBuffer_release(ahb);
if (result != VK_SUCCESS)
return result;
create_info = vn_android_fix_buffer_create_info(create_info, &local_info);
return vn_buffer_create(dev, create_info, alloc, out_buf);
result = vn_buffer_create(dev, create_info, alloc, out_buf);
if (result != VK_SUCCESS)
return result;
/* AHB backed buffer layers on top of dma_buf, so here we must comine the
* queried type bits from both buffer memory requirement and dma_buf fd
* properties.
*/
(*out_buf)->memory_requirements.memoryRequirements.memoryTypeBits &=
mem_type_bits;
assert((*out_buf)->memory_requirements.memoryRequirements.memoryTypeBits);
return VK_SUCCESS;
}