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drm/i915: Consolidate gen8_emit_pipe_control

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We have a few open coded instances in the execlists code and an
almost suitable helper in intel_ringbuf.c

We can consolidate to a single helper if we change the existing
helper to emit directly to ring buffer memory and move the space
reservation outside it.

v2: Drop memcpy for memset. (Chris Wilson)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170216122325.31391-2-tvrtko.ursulin@linux.intel.com
This commit is contained in:
Tvrtko Ursulin
2017-02-16 12:23:25 +00:00
parent 097d4f1c12
commit 9f235dfa49
3 changed files with 52 additions and 81 deletions
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11
drivers/gpu/drm/i915/intel_ringbuffer.h
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@@ -631,4 +631,15 @@ void intel_engine_reset_breadcrumbs(struct intel_engine_cs *engine);
void intel_engine_fini_breadcrumbs(struct intel_engine_cs *engine);
unsigned int intel_breadcrumbs_busy(struct drm_i915_private *i915);
static inline u32 *gen8_emit_pipe_control(u32 *batch, u32 flags, u32 offset)
{
memset(batch, 0, 6 * sizeof(u32));
batch[0] = GFX_OP_PIPE_CONTROL(6);
batch[1] = flags;
batch[2] = offset;
return batch + 6;
}
#endif /* _INTEL_RINGBUFFER_H_ */