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authorOscar Mateo <oscar.mateo@intel.com>2018-05-08 14:29:30 -0700
committerMika Kuoppala <mika.kuoppala@linux.intel.com>2018-05-11 15:56:28 +0300
commit908ae05173637e9b39545636a12c244314d6fce1 (patch)
tree67f72431fea4eaaacfe030b06463b1805dc390b1 /drivers/gpu
parent6b967dc392090831954644549676409ca22fe8bf (diff)
downloadop-kernel-dev-908ae05173637e9b39545636a12c244314d6fce1.zip
op-kernel-dev-908ae05173637e9b39545636a12c244314d6fce1.tar.gz
drm/i915/icl: WaDisCtxReload
Revert to the legacy implementation to avoid a system hang. v2: Correct the address for GAMW_ECO_DEV_RW_IA_REG v3: Renamed to Wa_220166154 v4: Rebased on top of the WA refactoring v5: Added References (Mika) v6: - Rebased - C, not lisp (Chris) References: HSDES#220166154 Signed-off-by: Oscar Mateo <oscar.mateo@intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1525814984-20039-9-git-send-email-oscar.mateo@intel.com
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/i915/i915_reg.h3
-rw-r--r--drivers/gpu/drm/i915/intel_workarounds.c6
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index d325fad..dd23af3 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -8273,6 +8273,9 @@ enum {
#define GEN11_LSN_UNSLCVC_GAFS_HALF_CL2_MAXALLOC (1 << 9)
#define GEN11_LSN_UNSLCVC_GAFS_HALF_SF_MAXALLOC (1 << 7)
+#define GAMW_ECO_DEV_RW_IA_REG _MMIO(0x4080)
+#define GAMW_ECO_DEV_CTX_RELOAD_DISABLE (1 << 7)
+
/* IVYBRIDGE DPF */
#define GEN7_L3CDERRST1(slice) _MMIO(0xB008 + (slice) * 0x200) /* L3CD Error Status 1 */
#define GEN7_L3CDERRST1_ROW_MASK (0x7ff<<14)
diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c
index a6758bd..3547403 100644
--- a/drivers/gpu/drm/i915/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/intel_workarounds.c
@@ -733,6 +733,12 @@ static void icl_gt_workarounds_apply(struct drm_i915_private *dev_priv)
I915_WRITE(GEN11_LSN_UNSLCVC, I915_READ(GEN11_LSN_UNSLCVC) |
GEN11_LSN_UNSLCVC_GAFS_HALF_SF_MAXALLOC |
GEN11_LSN_UNSLCVC_GAFS_HALF_CL2_MAXALLOC);
+
+ /* Wa_220166154:icl
+ * Formerly known as WaDisCtxReload
+ */
+ I915_WRITE(GAMW_ECO_DEV_RW_IA_REG, I915_READ(GAMW_ECO_DEV_RW_IA_REG) |
+ GAMW_ECO_DEV_CTX_RELOAD_DISABLE);
}
void intel_gt_workarounds_apply(struct drm_i915_private *dev_priv)
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