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nvk: support exporting buffers

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24326>
This commit is contained in:
Karol Herbst 2022-06-10 19:37:17 +02:00 • committed by Marge Bot
parent e2d0be7d08
commit 32830a2d07
3 changed files with 27 additions and 0 deletions
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19
src/nouveau/vulkan/nvk_device_memory.c
View file

@ -283,3 +283,22 @@ nvk_GetDeviceMemoryCommitment(VkDevice device,
*pCommittedMemoryInBytes = mem->bo->size;
}
VKAPI_ATTR VkResult VKAPI_CALL
nvk_GetMemoryFdKHR(VkDevice _device,
const VkMemoryGetFdInfoKHR *pGetFdInfo,
int *pFD)
{
VK_FROM_HANDLE(nvk_device, device, _device);
VK_FROM_HANDLE(nvk_device_memory, memory, pGetFdInfo->memory);
switch (pGetFdInfo->handleType) {
case VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT:
if (nouveau_ws_bo_dma_buf(memory->bo, pFD))
return vk_error(device, VK_ERROR_OUT_OF_DEVICE_MEMORY);
return VK_SUCCESS;
default:
assert(!"unsupported handle type");
return vk_error(device, VK_ERROR_FEATURE_NOT_PRESENT);
}
}

7
src/nouveau/winsys/nouveau_bo.c
View file

@ -3,6 +3,7 @@
#include <nouveau_drm.h>
#include <xf86drm.h>
#include <fcntl.h>
#include <stddef.h>
#include <sys/mman.h>
@ -121,3 +122,9 @@ nouveau_ws_bo_wait(struct nouveau_ws_bo *bo, enum nouveau_ws_bo_map_flags flags)
return !drmCommandWrite(bo->fd, DRM_NOUVEAU_GEM_CPU_PREP, &req, sizeof(req));
}
int
nouveau_ws_bo_dma_buf(struct nouveau_ws_bo *bo, int *fd)
{
return drmPrimeHandleToFD(bo->fd, bo->handle, DRM_CLOEXEC, fd);
}

1
src/nouveau/winsys/nouveau_bo.h
View file

@ -57,6 +57,7 @@ struct nouveau_ws_bo *nouveau_ws_bo_new_tiled(struct nouveau_ws_device *,
void nouveau_ws_bo_destroy(struct nouveau_ws_bo *);
void *nouveau_ws_bo_map(struct nouveau_ws_bo *, enum nouveau_ws_bo_map_flags);
bool nouveau_ws_bo_wait(struct nouveau_ws_bo *, enum nouveau_ws_bo_map_flags flags);
int nouveau_ws_bo_dma_buf(struct nouveau_ws_bo *, int *fd);
static inline void
nouveau_ws_bo_ref(struct nouveau_ws_bo *bo)