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authorChris Wilson <chris@chris-wilson.co.uk>2012-05-11 14:29:30 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2012-05-19 22:39:53 +0200
commitb4519513e8ca3bd82eabff9874d69166b58b6db9 (patch)
tree0663ffbb209263fe2305a296b40bc11f54beff51 /drivers/gpu/drm/i915/intel_ringbuffer.h
parente7e164db6db292d6f804ec6cd25f29ff62dd0618 (diff)
drm/i915: Introduce for_each_ring() macro
In many places we wish to iterate over the rings associated with the GPU, so refactor them to use a common macro. Along the way, there are a few code removals that should be side-effect free and some rearrangement which should only have a cosmetic impact, such as error-state. Note that this slightly changes the semantics in the hangcheck code: We now always cycle through all enabled rings instead of short-circuiting the logic. v2: Pull in a couple of suggestions from Ben and Daniel for intel_ring_initialized() and not removing the warning (just moving them to a new home, closer to the error). Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Ben Widawsky <ben@bwidawsk.net> [danvet: Added note to commit message about the small behaviour change, suggested by Ben Widawsky.] 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.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index baba7571457..55d3da26bae 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -119,6 +119,12 @@ struct intel_ring_buffer {
void *private;
};
+static inline bool
+intel_ring_initialized(struct intel_ring_buffer *ring)
+{
+ return ring->obj != NULL;
+}
+
static inline unsigned
intel_ring_flag(struct intel_ring_buffer *ring)
{