This is a note to let you know that I've just added the patch titled
drm/i915: Tidy workaround definitions
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-i915-tidy-workaround-definitions.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 65faed6ed2afa25e38d57dd8c0a25144228feeb7
Author: Matt Roper <matthew.d.roper@xxxxxxxxx>
Date: Wed Aug 16 14:42:06 2023 -0700
drm/i915: Tidy workaround definitions
[ Upstream commit f1c805716516f9e648e13f0108cea8096e0c7023 ]
Removal of the DG2 pre-production workarounds has left duplicate
condition blocks in a couple places, as well as some inconsistent
platform ordering. Reshuffle and consolidate some of the workarounds to
reduce the number of condition blocks and to more consistently follow
the "newest platform first" convention. Code movement only; no
functional change.
Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
Acked-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Reviewed-by: Matt Atwood <matthew.s.atwood@xxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20230816214201.534095-11-matthew.d.roper@xxxxxxxxx
Stable-dep-of: 186bce682772 ("drm/i915/mtl: Update workaround 14018575942")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 7b426f3015b34..69973dc518280 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -2337,6 +2337,19 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
true);
}
+ if (IS_DG2(i915) || IS_ALDERLAKE_P(i915) || IS_ALDERLAKE_S(i915) ||
+ IS_DG1(i915) || IS_ROCKETLAKE(i915) || IS_TIGERLAKE(i915)) {
+ /*
+ * Wa_1606700617:tgl,dg1,adl-p
+ * Wa_22010271021:tgl,rkl,dg1,adl-s,adl-p
+ * Wa_14010826681:tgl,dg1,rkl,adl-p
+ * Wa_18019627453:dg2
+ */
+ wa_masked_en(wal,
+ GEN9_CS_DEBUG_MODE1,
+ FF_DOP_CLOCK_GATE_DISABLE);
+ }
+
if (IS_ALDERLAKE_P(i915) || IS_ALDERLAKE_S(i915) || IS_DG1(i915) ||
IS_ROCKETLAKE(i915) || IS_TIGERLAKE(i915)) {
/* Wa_1606931601:tgl,rkl,dg1,adl-s,adl-p */
@@ -2350,19 +2363,11 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
*/
wa_write_or(wal, GEN7_FF_THREAD_MODE,
GEN12_FF_TESSELATION_DOP_GATE_DISABLE);
- }
- if (IS_ALDERLAKE_P(i915) || IS_DG2(i915) || IS_ALDERLAKE_S(i915) ||
- IS_DG1(i915) || IS_ROCKETLAKE(i915) || IS_TIGERLAKE(i915)) {
- /*
- * Wa_1606700617:tgl,dg1,adl-p
- * Wa_22010271021:tgl,rkl,dg1,adl-s,adl-p
- * Wa_14010826681:tgl,dg1,rkl,adl-p
- * Wa_18019627453:dg2
- */
- wa_masked_en(wal,
- GEN9_CS_DEBUG_MODE1,
- FF_DOP_CLOCK_GATE_DISABLE);
+ /* Wa_1406941453:tgl,rkl,dg1,adl-s,adl-p */
+ wa_mcr_masked_en(wal,
+ GEN10_SAMPLER_MODE,
+ ENABLE_SMALLPL);
}
if (IS_ALDERLAKE_P(i915) || IS_ALDERLAKE_S(i915) ||
@@ -2389,14 +2394,6 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
GEN8_RC_SEMA_IDLE_MSG_DISABLE);
}
- if (IS_DG1(i915) || IS_ROCKETLAKE(i915) || IS_TIGERLAKE(i915) ||
- IS_ALDERLAKE_S(i915) || IS_ALDERLAKE_P(i915)) {
- /* Wa_1406941453:tgl,rkl,dg1,adl-s,adl-p */
- wa_mcr_masked_en(wal,
- GEN10_SAMPLER_MODE,
- ENABLE_SMALLPL);
- }
-
if (GRAPHICS_VER(i915) == 11) {
/* This is not an Wa. Enable for better image quality */
wa_masked_en(wal,
@@ -2877,6 +2874,9 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
/* Wa_22013037850 */
wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0_UDW,
DISABLE_128B_EVICTION_COMMAND_UDW);
+
+ /* Wa_18017747507 */
+ wa_masked_en(wal, VFG_PREEMPTION_CHICKEN, POLYGON_TRIFAN_LINELOOP_DISABLE);
}
if (IS_MTL_GRAPHICS_STEP(i915, M, STEP_A0, STEP_B0) ||
@@ -2887,11 +2887,20 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0, DISABLE_D8_D16_COASLESCE);
}
- if (IS_MTL_GRAPHICS_STEP(i915, M, STEP_A0, STEP_B0) ||
- IS_MTL_GRAPHICS_STEP(i915, P, STEP_A0, STEP_B0) ||
- IS_DG2(i915)) {
- /* Wa_18017747507 */
- wa_masked_en(wal, VFG_PREEMPTION_CHICKEN, POLYGON_TRIFAN_LINELOOP_DISABLE);
+ if (IS_PONTEVECCHIO(i915) || IS_DG2(i915)) {
+ /* Wa_14015227452:dg2,pvc */
+ wa_mcr_masked_en(wal, GEN9_ROW_CHICKEN4, XEHP_DIS_BBL_SYSPIPE);
+
+ /* Wa_16015675438:dg2,pvc */
+ wa_masked_en(wal, FF_SLICE_CS_CHICKEN2, GEN12_PERF_FIX_BALANCING_CFE_DISABLE);
+ }
+
+ if (IS_DG2(i915)) {
+ /*
+ * Wa_16011620976:dg2_g11
+ * Wa_22015475538:dg2
+ */
+ wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0_UDW, DIS_CHAIN_2XSIMD8);
}
if (IS_DG2_G11(i915)) {
@@ -2906,6 +2915,18 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
/* Wa_22013059131:dg2 */
wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0,
FORCE_1_SUB_MESSAGE_PER_FRAGMENT);
+
+ /*
+ * Wa_22012654132
+ *
+ * Note that register 0xE420 is write-only and cannot be read
+ * back for verification on DG2 (due to Wa_14012342262), so
+ * we need to explicitly skip the readback.
+ */
+ wa_mcr_add(wal, GEN10_CACHE_MODE_SS, 0,
+ _MASKED_BIT_ENABLE(ENABLE_PREFETCH_INTO_IC),
+ 0 /* write-only, so skip validation */,
+ true);
}
if (IS_XEHPSDV(i915)) {
@@ -2923,35 +2944,6 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
wa_mcr_masked_en(wal, GEN8_HALF_SLICE_CHICKEN1,
GEN7_PSD_SINGLE_PORT_DISPATCH_ENABLE);
}
-
- if (IS_DG2(i915) || IS_PONTEVECCHIO(i915)) {
- /* Wa_14015227452:dg2,pvc */
- wa_mcr_masked_en(wal, GEN9_ROW_CHICKEN4, XEHP_DIS_BBL_SYSPIPE);
-
- /* Wa_16015675438:dg2,pvc */
- wa_masked_en(wal, FF_SLICE_CS_CHICKEN2, GEN12_PERF_FIX_BALANCING_CFE_DISABLE);
- }
-
- if (IS_DG2(i915)) {
- /*
- * Wa_16011620976:dg2_g11
- * Wa_22015475538:dg2
- */
- wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0_UDW, DIS_CHAIN_2XSIMD8);
- }
-
- if (IS_DG2_G11(i915))
- /*
- * Wa_22012654132
- *
- * Note that register 0xE420 is write-only and cannot be read
- * back for verification on DG2 (due to Wa_14012342262), so
- * we need to explicitly skip the readback.
- */
- wa_mcr_add(wal, GEN10_CACHE_MODE_SS, 0,
- _MASKED_BIT_ENABLE(ENABLE_PREFETCH_INTO_IC),
- 0 /* write-only, so skip validation */,
- true);
}
static void
