From: Imre Deak Date: Tue, 19 May 2015 12:04:59 +0000 (+0300) Subject: drm/i915/bxt: limit WaDisableMaskBasedCammingInRCC to stepping A X-Git-Tag: v4.14-rc1~5108^2~64 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5a2ae95e0b80d1769c24a0c7fbc7ae766cb706c1;p=platform%2Fkernel%2Flinux-rpi.git drm/i915/bxt: limit WaDisableMaskBasedCammingInRCC to stepping A Also make the WA comment consistent with the rest, where the stepping info is not shown. Signed-off-by: Imre Deak Reviewed-by: Damien Lespiau Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 9b96ed7..461b9be 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -961,12 +961,9 @@ static int gen9_init_workarounds(struct intel_engine_cs *ring) WA_CLR_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN5, GEN9_CCS_TLB_PREFETCH_ENABLE); - /* - * FIXME: don't apply the following on BXT for stepping C. On BXT A0 - * the flag reads back as 0. - */ - /* WaDisableMaskBasedCammingInRCC:sklC,bxtA */ - if (INTEL_REVID(dev) == SKL_REVID_C0 || IS_BROXTON(dev)) + /* WaDisableMaskBasedCammingInRCC:skl,bxt */ + if ((IS_SKYLAKE(dev) && INTEL_REVID(dev) == SKL_REVID_C0) || + (IS_BROXTON(dev) && INTEL_REVID(dev) < BXT_REVID_B0)) WA_SET_BIT_MASKED(SLICE_ECO_CHICKEN0, PIXEL_MASK_CAMMING_DISABLE);