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drm/i915: Add flag to i915_add_request() to skip the cache flush

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In order to explcitly track all GPU work (and completely remove the outstanding
lazy request), it is necessary to add extra i915_add_request() calls to various
places. Some of these do not need the implicit cache flush done as part of the
standard batch buffer submission process.

This patch adds a flag to _add_request() to specify whether the flush is
required or not.

For: VIZ-5115
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Tomas Elf <tomas.elf@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
John Harrison
2015-05-29 17:43:34 +01:00
committed by Daniel Vetter
parent 8a8edb5917
commit 5b4a60c276
5 changed files with 18 additions and 12 deletions
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drivers/gpu/drm/i915/i915_gem_execbuffer.c
+1 -1
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@@ -1066,7 +1066,7 @@ i915_gem_execbuffer_retire_commands(struct i915_execbuffer_params *params)
params->ring->gpu_caches_dirty = true;
/* Add a breadcrumb for the completion of the batch buffer */
__i915_add_request(params->ring, params->file, params->batch_obj);
__i915_add_request(params->ring, params->file, params->batch_obj, true);
}
static int