This w/a is fixed in B0 stepping and needs to be restricted for
A0 stepping only.
Bspec: 33451
Signed-off-by: Swathi Dhanavanthri <swathi.dhanavanthri@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/intel_workarounds.c | 11 +++++++----
drivers/gpu/drm/i915/i915_drv.h | 5 +++++
2 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index aa90e6b7a118..90a2b9e399b0 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -917,10 +917,13 @@ icl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
GAMT_CHKN_BIT_REG,
GAMT_CHKN_DISABLE_L3_COH_PIPE);
- /* Wa_1607087056:icl */
- wa_write_or(wal,
- SLICE_UNIT_LEVEL_CLKGATE,
- L3_CLKGATE_DIS | L3_CR2X_CLKGATE_DIS);
+ /* Wa_1607087056:icl,ehl,jsl */
+ if (IS_ICELAKE(i915) ||
+ IS_EHL_REVID(i915, EHL_REVID_A0, EHL_REVID_A0)) {
+ wa_write_or(wal,
+ SLICE_UNIT_LEVEL_CLKGATE,
+ L3_CLKGATE_DIS | L3_CR2X_CLKGATE_DIS);
+ }
}
static void
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 8656f1e0d97f..98dc8cdf2c38 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1517,6 +1517,11 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
#define IS_ICL_REVID(p, since, until) \
(IS_ICELAKE(p) && IS_REVID(p, since, until))
+#define EHL_REVID_A0 0x0
+
+#define IS_EHL_REVID(p, since, until) \
+ (IS_ELKHARTLAKE(p) && IS_REVID(p, since, until))
+
#define TGL_REVID_A0 0x0
#define TGL_REVID_B0 0x1
#define TGL_REVID_C0 0x2
--
2.20.1
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