Some of the workarounds are not required to be applied in later
revisions so restrict them based on revision.
For: VIZ-4090
Signed-off-by: Arun Siluvery <arun.siluv...@linux.intel.com>
---
drivers/gpu/drm/i915/i915_drv.h | 2 ++
drivers/gpu/drm/i915/intel_ringbuffer.c | 20 ++++++++++++--------
2 files changed, 14 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 059330c..b80d7ec 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2107,6 +2107,8 @@ struct drm_i915_cmd_table {
((INTEL_DEVID(dev) & 0xf) == 0x2 || \
(INTEL_DEVID(dev) & 0xf) == 0x6 || \
(INTEL_DEVID(dev) & 0xf) == 0xe))
+#define IS_BDW_GT2(dev) (IS_BROADWELL(dev) && \
+ (INTEL_DEVID(dev) & 0x00F0) == 0x0010)
#define IS_BDW_GT3(dev) (IS_BROADWELL(dev) && \
(INTEL_DEVID(dev) & 0x00F0) == 0x0020)
#define IS_HSW_ULT(dev) (IS_HASWELL(dev) && \
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c
b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 2c07a02..e527c74 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -746,7 +746,8 @@ static int bdw_init_workarounds(struct intel_engine_cs
*ring)
/* WaDisableThreadStallDopClockGating:bdw (pre-production) */
WA_SET_BIT_MASKED(GEN8_ROW_CHICKEN,
PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE |
- STALL_DOP_GATING_DISABLE);
+ (IS_BDW_GT2(dev) && dev->pdev->revision < 0x06) ?
+ STALL_DOP_GATING_DISABLE : 0);
/* WaDisableDopClockGating:bdw */
WA_SET_BIT_MASKED(GEN7_ROW_CHICKEN2,
@@ -756,13 +757,16 @@ static int bdw_init_workarounds(struct intel_engine_cs
*ring)
GEN8_SAMPLER_POWER_BYPASS_DIS);
/* Use Force Non-Coherent whenever executing a 3D context. This is a
- * workaround for for a possible hang in the unlikely event a TLB
+ * workaround for a possible hang in the unlikely event a TLB
* invalidation occurs during a PSD flush.
*/
/* WaDisableFenceDestinationToSLM:bdw (GT3 pre-production) */
WA_SET_BIT_MASKED(HDC_CHICKEN0,
HDC_FORCE_NON_COHERENT |
- (IS_BDW_GT3(dev) ? HDC_FENCE_DEST_SLM_DISABLE : 0));
+ ((IS_BDW_GT3(dev) &&
+ (dev->pdev->revision == 0x08 ||
+ dev->pdev->revision == 0x09))
+ ? HDC_FENCE_DEST_SLM_DISABLE : 0));
/* Wa4x4STCOptimizationDisable:bdw */
WA_SET_BIT_MASKED(CACHE_MODE_1,
@@ -812,12 +816,12 @@ static int chv_init_workarounds(struct intel_engine_cs
*ring)
HDC_FENCE_DEST_SLM_DISABLE : 0));
/* WaDisableRowChickenDopClockGating:chv (pre-production hw) */
- WA_SET_BIT_MASKED(GEN7_ROW_CHICKEN2,
- DOP_CLOCK_GATING_DISABLE);
-
/* WaDisableSamplerPowerBypass:chv (pre-production hw) */
- WA_SET_BIT_MASKED(HALF_SLICE_CHICKEN3,
- GEN8_SAMPLER_POWER_BYPASS_DIS);
+ if (dev->pdev->revision < 0x06) {
+ WA_SET_BIT_MASKED(GEN7_ROW_CHICKEN2, DOP_CLOCK_GATING_DISABLE);
+ WA_SET_BIT_MASKED(HALF_SLICE_CHICKEN3,
+ GEN8_SAMPLER_POWER_BYPASS_DIS);
+ }
return 0;
}
--
2.1.2
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