drm/i915: Mark up "sentinel" requests

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Sometimes we want to emit a terminator request, a request that flushes
the pipeline and allows no request to come after it. This can be used
for a "preempt-to-idle" to ensure that upon processing the
context-switch to that request, all other active contexts have been
flushed.

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/20191012070136.32058-1-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2019-10-12 08:01:36 +01:00

parent d8ad5f5261

commit c3eb54aad9

2 changed files with 13 additions and 3 deletions

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6

drivers/gpu/drm/i915/gt/intel_lrc.c

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10

drivers/gpu/drm/i915/i915_request.h

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