alistair23-linux/drivers/dma-buf
Chris Wilson a009e975da dma-fence: Introduce drm_fence_set_error() helper
The dma_fence.error field (formerly known as dma_fence.status) is an
optional field that may be set by drivers before calling
dma_fence_signal(). The field can be used to indicate that the fence was
completed in err rather than with success, and is visible to other
consumers of the fence and to userspace via sync_file.

This patch renames the field from status to error so that its meaning is
hopefully more clear (and distinct from dma_fence_get_status() which is
a composite between the error state and signal state) and adds a helper
that validates the preconditions of when it is suitable to adjust the
error field.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170104141222.6992-3-chris@chris-wilson.co.uk
2017-01-09 21:13:49 +05:30
..
dma-buf.c dma-buf: Use recommended structure member reference 2016-12-30 13:34:16 +01:00
dma-fence-array.c dma-buf: Rename struct fence to dma_fence 2016-10-25 14:40:39 +02:00
dma-fence.c dma-fence: Introduce drm_fence_set_error() helper 2017-01-09 21:13:49 +05:30
Kconfig dma-buf: Rename struct fence to dma_fence 2016-10-25 14:40:39 +02:00
Makefile dma-buf: Rename struct fence to dma_fence 2016-10-25 14:40:39 +02:00
reservation.c reservation: revert "wait only with non-zero timeout specified (v3)" v2 2016-11-09 00:48:57 +05:30
seqno-fence.c dma-buf: Rename struct fence to dma_fence 2016-10-25 14:40:39 +02:00
sw_sync.c dma-buf/sw_sync: put fence reference from the fence creation 2016-11-08 23:57:40 +05:30
sync_debug.c dma-fence: Wrap querying the fence->status 2017-01-09 20:06:58 +05:30
sync_debug.h dma-buf: Rename struct fence to dma_fence 2016-10-25 14:40:39 +02:00
sync_file.c dma-fence: Wrap querying the fence->status 2017-01-09 20:06:58 +05:30
sync_trace.h dma-buf/sw_sync: de-stage SW_SYNC 2016-08-15 16:41:46 +02:00