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drm/i915/bxt: Add WaForceContextSaveRestoreNonCoherent
author
Nick Hoath
<nicholas.hoath@intel.com>
Fri, 10 Apr 2015 12:12:26 +0000
(13:12 +0100)
committer
Daniel Vetter
<daniel.vetter@ffwll.ch>
Fri, 8 May 2015 11:03:45 +0000
(13:03 +0200)
Note that we also need this for skl.
Signed-off-by: Nick Hoath <nicholas.hoath@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
[danvet: Note that we also need this for skl, requested by Imre.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_ringbuffer.c
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diff --git
a/drivers/gpu/drm/i915/intel_ringbuffer.c
b/drivers/gpu/drm/i915/intel_ringbuffer.c
index
b0bd9bb
..
7ef9a29
100644
(file)
--- a/
drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/
drivers/gpu/drm/i915/intel_ringbuffer.c
@@
-1057,6
+1057,10
@@
static int bxt_init_workarounds(struct intel_engine_cs *ring)
GEN7_SBE_SS_CACHE_DISPATCH_PORT_SHARING_DISABLE);
}
+ /* WaForceContextSaveRestoreNonCoherent:bxt */
+ WA_SET_BIT_MASKED(HDC_CHICKEN0,
+ HDC_FORCE_CONTEXT_SAVE_RESTORE_NON_COHERENT);
+
return 0;
}