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drm/i915/ringbuffer: EMIT_INVALIDATE after switch context

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The recommend procedure was to switch contexts (and mm) then invalidate
the TLBs. Make it so.

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/20181207090213.14352-2-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2018-12-07 09:02:12 +00:00
parent 5f5800a765
commit f2253bd985
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/i915/intel_ringbuffer.c
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@ -1827,12 +1827,12 @@ static int ring_request_alloc(struct i915_request *request)
*/
request->reserved_space += LEGACY_REQUEST_SIZE;
/* Unconditionally invalidate GPU caches and TLBs. */
ret = request->engine->emit_flush(request, EMIT_INVALIDATE);
ret = switch_context(request);
if (ret)
return ret;
ret = switch_context(request);
/* Unconditionally invalidate GPU caches and TLBs. */
ret = request->engine->emit_flush(request, EMIT_INVALIDATE);
if (ret)
return ret;