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drm/syncobj: add transition iotcls between binary and timeline v2

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we need to import/export timeline point.

v2: unify to one transfer ioctl

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/295790/?series=58813&rev=1
This commit is contained in:
Chunming Zhou 2019-04-01 17:51:01 +08:00 committed by Christian König
parent bc9c80fe01
commit ea569910cb
4 changed files with 88 additions and 0 deletions
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2
drivers/gpu/drm/drm_internal.h
View File

@ -180,6 +180,8 @@ int drm_syncobj_handle_to_fd_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private);
int drm_syncobj_fd_to_handle_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private);
int drm_syncobj_transfer_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private);
int drm_syncobj_wait_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private);
int drm_syncobj_timeline_wait_ioctl(struct drm_device *dev, void *data,

2
drivers/gpu/drm/drm_ioctl.c
View File

@ -686,6 +686,8 @@ static const struct drm_ioctl_desc drm_ioctls[] = {
DRM_UNLOCKED|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF(DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE, drm_syncobj_fd_to_handle_ioctl,
DRM_UNLOCKED|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF(DRM_IOCTL_SYNCOBJ_TRANSFER, drm_syncobj_transfer_ioctl,
DRM_UNLOCKED|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF(DRM_IOCTL_SYNCOBJ_WAIT, drm_syncobj_wait_ioctl,
DRM_UNLOCKED|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF(DRM_IOCTL_SYNCOBJ_TIMELINE_WAIT, drm_syncobj_timeline_wait_ioctl,

74
drivers/gpu/drm/drm_syncobj.c
View File

@ -680,6 +680,80 @@ drm_syncobj_fd_to_handle_ioctl(struct drm_device *dev, void *data,
&args->handle);
}
static int drm_syncobj_transfer_to_timeline(struct drm_file *file_private,
struct drm_syncobj_transfer *args)
{
struct drm_syncobj *timeline_syncobj = NULL;
struct dma_fence *fence;
struct dma_fence_chain *chain;
int ret;
timeline_syncobj = drm_syncobj_find(file_private, args->dst_handle);
if (!timeline_syncobj) {
return -ENOENT;
}
ret = drm_syncobj_find_fence(file_private, args->src_handle,
args->src_point, args->flags,
&fence);
if (ret)
goto err;
chain = kzalloc(sizeof(struct dma_fence_chain), GFP_KERNEL);
if (!chain) {
ret = -ENOMEM;
goto err1;
}
drm_syncobj_add_point(timeline_syncobj, chain, fence, args->dst_point);
err1:
dma_fence_put(fence);
err:
drm_syncobj_put(timeline_syncobj);
return ret;
}
static int
drm_syncobj_transfer_to_binary(struct drm_file *file_private,
struct drm_syncobj_transfer *args)
{
struct drm_syncobj *binary_syncobj = NULL;
struct dma_fence *fence;
int ret;
binary_syncobj = drm_syncobj_find(file_private, args->dst_handle);
if (!binary_syncobj)
return -ENOENT;
ret = drm_syncobj_find_fence(file_private, args->src_handle,
args->src_point, args->flags, &fence);
if (ret)
goto err;
drm_syncobj_replace_fence(binary_syncobj, fence);
dma_fence_put(fence);
err:
drm_syncobj_put(binary_syncobj);
return ret;
}
int
drm_syncobj_transfer_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private)
{
struct drm_syncobj_transfer *args = data;
int ret;
if (!drm_core_check_feature(dev, DRIVER_SYNCOBJ))
return -ENODEV;
if (args->pad)
return -EINVAL;
if (args->dst_point)
ret = drm_syncobj_transfer_to_timeline(file_private, args);
else
ret = drm_syncobj_transfer_to_binary(file_private, args);
return ret;
}
static void syncobj_wait_fence_func(struct dma_fence *fence,
struct dma_fence_cb *cb)
{

10
include/uapi/drm/drm.h
View File

@ -735,6 +735,15 @@ struct drm_syncobj_handle {
__u32 pad;
};
struct drm_syncobj_transfer {
__u32 src_handle;
__u32 dst_handle;
__u64 src_point;
__u64 dst_point;
__u32 flags;
__u32 pad;
};
#define DRM_SYNCOBJ_WAIT_FLAGS_WAIT_ALL (1 << 0)
#define DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT (1 << 1)
#define DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE (1 << 2) /* wait for time point to become available */
@ -933,6 +942,7 @@ extern "C" {
#define DRM_IOCTL_SYNCOBJ_TIMELINE_WAIT DRM_IOWR(0xCA, struct drm_syncobj_timeline_wait)
#define DRM_IOCTL_SYNCOBJ_QUERY DRM_IOWR(0xCB, struct drm_syncobj_timeline_array)
#define DRM_IOCTL_SYNCOBJ_TRANSFER DRM_IOWR(0xCC, struct drm_syncobj_transfer)
/**
* Device specific ioctls should only be in their respective headers