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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-03-08 09:36:56 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-03-08 10:57:08 +0000 |
| commit | c6eeb4797eb94ad14bb34adfccbc6addad2cfd48 (patch) | |
| tree | ec32a5bc5b8c8e3ce3abfb529eb0b5b8365e4ab7 /drivers/gpu/drm/i915/i915_gem_context.h | |
| parent | 604c37d76689d6a0e5492f5ff71886ab83817208 (diff) | |
| download | linux-c6eeb4797eb94ad14bb34adfccbc6addad2cfd48.tar.bz2 | |
drm/i915: Reduce presumption of request ordering for barriers
Currently we assume that we know the order in which requests run and so
can determine if we need to reissue a switch-to-kernel-context prior to
idling. That assumption does not hold for the future, so instead of
tracking which barriers have been used, simply determine if we have ever
switched away from the kernel context by using the engine and before
idling ensure that all engines that have been used since the last idle
are synchronously switched back to the kernel context for safety (and
else of shrinking memory while idle).
v2: Use intel_engine_mask_t and ALL_ENGINES
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190308093657.8640-3-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_context.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_context.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_context.h b/drivers/gpu/drm/i915/i915_gem_context.h index 2f9ef333acaa..e1188d77a23d 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.h +++ b/drivers/gpu/drm/i915/i915_gem_context.h @@ -372,7 +372,8 @@ int i915_gem_context_open(struct drm_i915_private *i915, void i915_gem_context_close(struct drm_file *file); int i915_switch_context(struct i915_request *rq); -int i915_gem_switch_to_kernel_context(struct drm_i915_private *dev_priv); +int i915_gem_switch_to_kernel_context(struct drm_i915_private *i915, + unsigned long engine_mask); void i915_gem_context_release(struct kref *ctx_ref); struct i915_gem_context * |