diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-02 22:50:25 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-02 22:58:19 +0100 |
| commit | 7c9cf4e33a72c36a62471709d85d096eaac86dc6 (patch) | |
| tree | 355a158bbb6db7d4fe3867bbe3806945a494cbda /drivers/gpu/drm/i915/intel_ringbuffer.h | |
| parent | c7fe7d25ed6036ff16b1c112463baff21c3b205d (diff) | |
drm/i915: Reduce engine->emit_flush() to a single mode parameter
Rather than passing a complete set of GPU cache domains for either
invalidation or for flushing, or even both, just pass a single parameter
to the engine->emit_flush to determine the required operations.
engine->emit_flush(GPU, 0) -> engine->emit_flush(EMIT_INVALIDATE)
engine->emit_flush(0, GPU) -> engine->emit_flush(EMIT_FLUSH)
engine->emit_flush(GPU, GPU) -> engine->emit_flush(EMIT_FLUSH | EMIT_INVALIDATE)
This allows us to extend the behaviour easily in future, for example if
we want just a command barrier without the overhead of flushing.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Dave Gordon <david.s.gordon@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470174640-18242-8-git-send-email-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index 00723401f98c..76d0495943c3 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -292,8 +292,10 @@ struct intel_engine_cs { u32 ctx_desc_template; int (*emit_request)(struct drm_i915_gem_request *request); int (*emit_flush)(struct drm_i915_gem_request *request, - u32 invalidate_domains, - u32 flush_domains); + u32 mode); +#define EMIT_INVALIDATE BIT(0) +#define EMIT_FLUSH BIT(1) +#define EMIT_BARRIER (EMIT_INVALIDATE | EMIT_FLUSH) int (*emit_bb_start)(struct drm_i915_gem_request *req, u64 offset, unsigned dispatch_flags); |