drm/i915/kbl: Add WaDisableSbeCacheDispatchPortSharing

This is needed for all kbl revision.

v2: Don't add revid checks to generic gen9 init (Arun)

References: HSD#2135593
Signed-off-by: Mika Kuoppala <[email protected]>
Reviewed-by: Matthew Auld <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index b6b181befa91ab212dacad9a2318deefc8b81810..9169f589cfcb05a3534ead58b454ff21b4713375 100644 (file)
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1230,6 +1230,11 @@ static int kbl_init_workarounds(struct intel_engine_cs *engine)
        /* WaDisableGafsUnitClkGating:kbl */
        WA_SET_BIT(GEN7_UCGCTL4, GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE);
 
+       /* WaDisableSbeCacheDispatchPortSharing:kbl */
+       WA_SET_BIT_MASKED(
+               GEN7_HALF_SLICE_CHICKEN1,
+               GEN7_SBE_SS_CACHE_DISPATCH_PORT_SHARING_DISABLE);
+
        /* WaDisableLSQCROPERFforOCL:kbl */
        ret = wa_ring_whitelist_reg(engine, GEN8_L3SQCREG4);
        if (ret)