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freedreno: add dmabuf import/export helpers 

Signed-off-by: Rob Clark <robclark@freedesktop.org>
main
Rob Clark 2014-09-16 16:26:50 -04:00
parent 77dce9a012
commit 666788a606
3 changed files with 46 additions and 0 deletions
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43
freedreno/freedreno_bo.c
View File

@ -209,6 +209,25 @@ fd_bo_from_handle(struct fd_device *dev, uint32_t handle, uint32_t size)
return bo;
}
drm_public struct fd_bo *
fd_bo_from_dmabuf(struct fd_device *dev, int fd)
{
struct drm_prime_handle req = {
.fd = fd,
};
int ret, size;
ret = drmIoctl(dev->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &req);
if (ret) {
return NULL;
}
/* hmm, would be nice if we had a way to figure out the size.. */
size = 0;
return fd_bo_from_handle(dev, req.handle, size);
}
drm_public struct fd_bo * fd_bo_from_name(struct fd_device *dev, uint32_t name)
{
struct drm_gem_open req = {
@ -255,6 +274,11 @@ drm_public void fd_bo_del(struct fd_bo *bo)
if (!atomic_dec_and_test(&bo->refcnt))
return;
if (bo->fd) {
close(bo->fd);
bo->fd = 0;
}
pthread_mutex_lock(&table_lock);
if (bo->bo_reuse) {
@ -335,6 +359,25 @@ drm_public uint32_t fd_bo_handle(struct fd_bo *bo)
return bo->handle;
}
drm_public int fd_bo_dmabuf(struct fd_bo *bo)
{
if (!bo->fd) {
struct drm_prime_handle req = {
.handle = bo->handle,
.flags = DRM_CLOEXEC,
};
int ret;
ret = drmIoctl(bo->dev->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &req);
if (ret) {
return ret;
}
bo->fd = req.fd;
}
return dup(bo->fd);
}
drm_public uint32_t fd_bo_size(struct fd_bo *bo)
{
return bo->size;

2
freedreno/freedreno_drmif.h
View File

@ -98,10 +98,12 @@ struct fd_bo * fd_bo_from_fbdev(struct fd_pipe *pipe,
struct fd_bo *fd_bo_from_handle(struct fd_device *dev,
uint32_t handle, uint32_t size);
struct fd_bo * fd_bo_from_name(struct fd_device *dev, uint32_t name);
struct fd_bo * fd_bo_from_dmabuf(struct fd_device *dev, int fd);
struct fd_bo * fd_bo_ref(struct fd_bo *bo);
void fd_bo_del(struct fd_bo *bo);
int fd_bo_get_name(struct fd_bo *bo, uint32_t *name);
uint32_t fd_bo_handle(struct fd_bo *bo);
int fd_bo_dmabuf(struct fd_bo *bo);
uint32_t fd_bo_size(struct fd_bo *bo);
void * fd_bo_map(struct fd_bo *bo);
int fd_bo_cpu_prep(struct fd_bo *bo, struct fd_pipe *pipe, uint32_t op);

1
freedreno/freedreno_priv.h
View File

@ -139,6 +139,7 @@ struct fd_bo {
uint32_t size;
uint32_t handle;
uint32_t name;
int fd; /* dmabuf handle */
void *map;
atomic_t refcnt;
struct fd_bo_funcs *funcs;