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drm/i915: WaEnableForceRestoreInCtxtDescForVCS is for video engines only 

Also check for correct revision id in each Gen9 platform (SKL until B0
and BXT until A0).

Cc: Nick Hoath <nicholas.hoath@intel.com>
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Reviewed-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Tested-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Michel Thierry 2015-09-04 12:59:14 +01:00 committed by Daniel Vetter
parent 6764e9f872
commit ec72d5884c
1 changed files with 4 additions and 4 deletions
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8
drivers/gpu/drm/i915/intel_lrc.c
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@ -301,10 +301,10 @@ uint64_t intel_lr_context_descriptor(struct intel_context *ctx,
/* desc |= GEN8_CTX_FORCE_RESTORE; */
/* WaEnableForceRestoreInCtxtDescForVCS:skl */
if (IS_GEN9(dev) &&
INTEL_REVID(dev) <= SKL_REVID_B0 &&
(ring->id == BCS || ring->id == VCS ||
ring->id == VECS || ring->id == VCS2))
/* WaEnableForceRestoreInCtxtDescForVCS:bxt */
if (((IS_SKYLAKE(dev) && INTEL_REVID(dev) <= SKL_REVID_B0) ||
(IS_BROXTON(dev) && INTEL_REVID(dev) == BXT_REVID_A0)) &&
(ring->id == VCS || ring->id == VCS2))
desc |= GEN8_CTX_FORCE_RESTORE;
return desc;