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| author | Ben Widawsky <ben@bwidawsk.net> | 2013-05-29 06:22:17 +0400 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-05-31 22:54:08 +0400 |
| commit | 5586181fce2b2e89a0e281d78ffbdfa103bb0dde (patch) | |
| tree | ce5d6d12c1e7efbdb54334d56fcb50e10c73f955 /drivers/gpu/drm/i915/intel_ringbuffer.h | |
| parent | 40ccc72b84a848e6fcbdb38fe716f0ac6939609e (diff) | |
| download | linux-5586181fce2b2e89a0e281d78ffbdfa103bb0dde.tar.xz | |
drm/i915: Comments for semaphore clarification
Semaphores are tied very closely to the rings in the GPU. Trivial patch
adds comments to the existing code so that when we add new rings we can
include comments there as well. It also helps distinguish the ring to
semaphore mailbox interactions by using the ringname in the semaphore
data structures.
This patch should have no functional impact.
v2: The English parts (as opposed to register names) of the comments
were reversed. (Damien)
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index ef374a892105..24268fbe6855 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -105,8 +105,8 @@ struct intel_ring_buffer { int (*sync_to)(struct intel_ring_buffer *ring, struct intel_ring_buffer *to, u32 seqno); - - u32 semaphore_register[3]; /*our mbox written by others */ + /* our mbox written by others */ + u32 semaphore_register[I915_NUM_RINGS]; u32 signal_mbox[2]; /* mboxes this ring signals to */ /** * List of objects currently involved in rendering from the |