[Intel-gfx] [PATCH 2/8] drm/i915/gt: Rearrange ivb workarounds
Chris Wilson
chris at chris-wilson.co.uk
Tue Jan 5 00:54:33 UTC 2021
Some rcs0 workarounds were being incorrectly applied to the GT, and so
we failed to restore the expected register settings after a reset.
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
drivers/gpu/drm/i915/gt/intel_workarounds.c | 118 ++++++++------------
1 file changed, 47 insertions(+), 71 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 3d5122301f64..7c18893f5164 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -829,18 +829,6 @@ snb_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
static void
ivb_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
{
- /* WaDisableEarlyCull:ivb */
- wa_masked_en(wal, _3D_CHICKEN3, _3D_CHICKEN_SF_DISABLE_OBJEND_CULL);
-
- /* WaDisablePSDDualDispatchEnable:ivb */
- if (IS_IVB_GT1(i915))
- wa_masked_en(wal,
- GEN7_HALF_SLICE_CHICKEN1,
- GEN7_PSD_SINGLE_PORT_DISPATCH_ENABLE);
-
- /* WaDisable_RenderCache_OperationalFlush:ivb */
- wa_masked_dis(wal, CACHE_MODE_0_GEN7, RC_OP_FLUSH_ENABLE);
-
/* Apply the WaDisableRHWOOptimizationForRenderHang:ivb workaround. */
wa_masked_dis(wal,
GEN7_COMMON_SLICE_CHICKEN1,
@@ -852,38 +840,6 @@ ivb_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
/* WaForceL3Serialization:ivb */
wa_write_clr(wal, GEN7_L3SQCREG4, L3SQ_URB_READ_CAM_MATCH_DISABLE);
-
- /*
- * WaVSThreadDispatchOverride:ivb,vlv
- *
- * This actually overrides the dispatch
- * mode for all thread types.
- */
- wa_write_clr_set(wal, GEN7_FF_THREAD_MODE,
- GEN7_FF_SCHED_MASK,
- GEN7_FF_TS_SCHED_HW |
- GEN7_FF_VS_SCHED_HW |
- GEN7_FF_DS_SCHED_HW);
-
- if (0) { /* causes HiZ corruption on ivb:gt1 */
- /* enable HiZ Raw Stall Optimization */
- wa_masked_dis(wal, CACHE_MODE_0_GEN7, HIZ_RAW_STALL_OPT_DISABLE);
- }
-
- /* WaDisable4x2SubspanOptimization:ivb */
- wa_masked_en(wal, CACHE_MODE_1, PIXEL_SUBSPAN_COLLECT_OPT_DISABLE);
-
- /*
- * BSpec recommends 8x4 when MSAA is used,
- * however in practice 16x4 seems fastest.
- *
- * Note that PS/WM thread counts depend on the WIZ hashing
- * disable bit, which we don't touch here, but it's good
- * to keep in mind (see 3DSTATE_PS and 3DSTATE_WM).
- */
- wa_add(wal, GEN7_GT_MODE, 0,
- _MASKED_FIELD(GEN6_WIZ_HASHING_MASK, GEN6_WIZ_HASHING_16x4),
- GEN6_WIZ_HASHING_16x4);
}
static void
@@ -1886,34 +1842,53 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
wa_masked_dis(wal,
CACHE_MODE_0_GEN7,
- /* WaDisable_RenderCache_OperationalFlush:hsw */
- RC_OP_FLUSH_ENABLE |
/* enable HiZ Raw Stall Optimization */
HIZ_RAW_STALL_OPT_DISABLE);
/* WaDisable4x2SubspanOptimization:hsw */
wa_masked_en(wal, CACHE_MODE_1, PIXEL_SUBSPAN_COLLECT_OPT_DISABLE);
+ }
+
+ if (IS_VALLEYVIEW(i915)) {
+ /* WaDisableEarlyCull:vlv */
+ wa_masked_en(wal,
+ _3D_CHICKEN3,
+ _3D_CHICKEN_SF_DISABLE_OBJEND_CULL);
/*
- * BSpec recommends 8x4 when MSAA is used,
- * however in practice 16x4 seems fastest.
+ * WaVSThreadDispatchOverride:ivb,vlv
*
- * Note that PS/WM thread counts depend on the WIZ hashing
- * disable bit, which we don't touch here, but it's good
- * to keep in mind (see 3DSTATE_PS and 3DSTATE_WM).
+ * This actually overrides the dispatch
+ * mode for all thread types.
*/
- wa_add(wal, GEN7_GT_MODE, 0,
- _MASKED_FIELD(GEN6_WIZ_HASHING_MASK,
- GEN6_WIZ_HASHING_16x4),
- GEN6_WIZ_HASHING_16x4);
+ wa_write_clr_set(wal,
+ GEN7_FF_THREAD_MODE,
+ GEN7_FF_SCHED_MASK,
+ GEN7_FF_TS_SCHED_HW |
+ GEN7_FF_VS_SCHED_HW |
+ GEN7_FF_DS_SCHED_HW);
+
+ /* WaPsdDispatchEnable:vlv */
+ /* WaDisablePSDDualDispatchEnable:vlv */
+ wa_masked_en(wal,
+ GEN7_HALF_SLICE_CHICKEN1,
+ GEN7_MAX_PS_THREAD_DEP |
+ GEN7_PSD_SINGLE_PORT_DISPATCH_ENABLE);
}
- if (IS_VALLEYVIEW(i915)) {
- /* WaDisableEarlyCull:vlv */
+ if (IS_IVYBRIDGE(i915)) {
+ /* WaDisableEarlyCull:ivb */
wa_masked_en(wal,
_3D_CHICKEN3,
_3D_CHICKEN_SF_DISABLE_OBJEND_CULL);
+ if (0) { /* causes HiZ corruption on ivb:gt1 */
+ /* enable HiZ Raw Stall Optimization */
+ wa_masked_dis(wal,
+ CACHE_MODE_0_GEN7,
+ HIZ_RAW_STALL_OPT_DISABLE);
+ }
+
/*
* WaVSThreadDispatchOverride:ivb,vlv
*
@@ -1927,11 +1902,25 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
GEN7_FF_VS_SCHED_HW |
GEN7_FF_DS_SCHED_HW);
- /* WaDisable_RenderCache_OperationalFlush:vlv */
+ /* WaDisablePSDDualDispatchEnable:ivb */
+ if (IS_IVB_GT1(i915))
+ wa_masked_en(wal,
+ GEN7_HALF_SLICE_CHICKEN1,
+ GEN7_PSD_SINGLE_PORT_DISPATCH_ENABLE);
+ }
+
+ if (IS_GEN(i915, 7)) {
+ /* WaBCSVCSTlbInvalidationMode:ivb,vlv,hsw */
+ wa_masked_en(wal,
+ GFX_MODE_GEN7,
+ GFX_TLB_INVALIDATE_EXPLICIT | GFX_REPLAY_MODE);
+
+ /* WaDisable_RenderCache_OperationalFlush:ivb,vlv,hsw */
wa_masked_dis(wal, CACHE_MODE_0_GEN7, RC_OP_FLUSH_ENABLE);
/*
* BSpec says this must be set, even though
+ * WaDisable4x2SubspanOptimization:ivb,hsw
* WaDisable4x2SubspanOptimization isn't listed for VLV.
*/
wa_masked_en(wal,
@@ -1950,21 +1939,8 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
_MASKED_FIELD(GEN6_WIZ_HASHING_MASK,
GEN6_WIZ_HASHING_16x4),
GEN6_WIZ_HASHING_16x4);
-
- /* WaPsdDispatchEnable:vlv */
- /* WaDisablePSDDualDispatchEnable:vlv */
- wa_masked_en(wal,
- GEN7_HALF_SLICE_CHICKEN1,
- GEN7_MAX_PS_THREAD_DEP |
- GEN7_PSD_SINGLE_PORT_DISPATCH_ENABLE);
}
- if (IS_GEN(i915, 7))
- /* WaBCSVCSTlbInvalidationMode:ivb,vlv,hsw */
- wa_masked_en(wal,
- GFX_MODE_GEN7,
- GFX_TLB_INVALIDATE_EXPLICIT | GFX_REPLAY_MODE);
-
if (IS_GEN_RANGE(i915, 6, 7))
/*
* We need to disable the AsyncFlip performance optimisations in
--
2.20.1
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