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drm/i915/icl: Wa_1406463099 

Prevents an error in the GAM unit. Also known as WaGamTlbPendError

References: HSDES#1406463099
References: HSDES#1406465643
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/1527285939-20113-12-git-send-email-oscar.mateo@intel.com
This commit is contained in:
Oscar Mateo 2018-05-25 15:05:39 -07:00 committed by Mika Kuoppala
parent 0bf059f353
commit 4ece66b149
2 changed files with 10 additions and 2 deletions
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5
drivers/gpu/drm/i915/i915_reg.h
View File

@ -2306,8 +2306,9 @@ enum i915_power_well_id {
#define GAMW_ECO_ENABLE_64K_IPS_FIELD 0xF
#define GAMT_CHKN_BIT_REG _MMIO(0x4ab8)
#define GAMT_CHKN_DISABLE_DYNAMIC_CREDIT_SHARING (1<<28)
#define GAMT_CHKN_DISABLE_I2M_CYCLE_ON_WR_PORT (1<<24)
#define GAMT_CHKN_DISABLE_L3_COH_PIPE (1 << 31)
#define GAMT_CHKN_DISABLE_DYNAMIC_CREDIT_SHARING (1 << 28)
#define GAMT_CHKN_DISABLE_I2M_CYCLE_ON_WR_PORT (1 << 24)
#if 0
#define PRB0_TAIL _MMIO(0x2030)

7
drivers/gpu/drm/i915/intel_workarounds.c
View File

@ -859,6 +859,13 @@ static void icl_gt_workarounds_apply(struct drm_i915_private *dev_priv)
PMFLUSHDONE_LNICRSDROP |
PMFLUSH_GAPL3UNBLOCK |
PMFLUSHDONE_LNEBLK);
/* Wa_1406463099:icl
* Formerly known as WaGamTlbPendError
*/
I915_WRITE(GAMT_CHKN_BIT_REG,
I915_READ(GAMT_CHKN_BIT_REG) |
GAMT_CHKN_DISABLE_L3_COH_PIPE);
}
void intel_gt_workarounds_apply(struct drm_i915_private *dev_priv)