Commit 4ba9c1f7 authored by Mika Kuoppala's avatar Mika Kuoppala Committed by Joonas Lahtinen

drm/i915/gen9: Add WaInPlaceDecompressionHang

Add this workaround to prevent hang when in place compression
is used.

References: HSD#2135774
Cc: stable@vger.kernel.org
Signed-off-by: default avatarMika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: default avatarArun Siluvery <arun.siluvery@linux.intel.com>
Signed-off-by: default avatarJoonas Lahtinen <joonas.lahtinen@linux.intel.com>
parent 39df9190
...@@ -2629,6 +2629,8 @@ struct drm_i915_cmd_table { ...@@ -2629,6 +2629,8 @@ struct drm_i915_cmd_table {
#define SKL_REVID_D0 0x3 #define SKL_REVID_D0 0x3
#define SKL_REVID_E0 0x4 #define SKL_REVID_E0 0x4
#define SKL_REVID_F0 0x5 #define SKL_REVID_F0 0x5
#define SKL_REVID_G0 0x6
#define SKL_REVID_H0 0x7
#define IS_SKL_REVID(p, since, until) (IS_SKYLAKE(p) && IS_REVID(p, since, until)) #define IS_SKL_REVID(p, since, until) (IS_SKYLAKE(p) && IS_REVID(p, since, until))
......
...@@ -1686,6 +1686,9 @@ enum skl_disp_power_wells { ...@@ -1686,6 +1686,9 @@ enum skl_disp_power_wells {
#define GEN7_TLB_RD_ADDR _MMIO(0x4700) #define GEN7_TLB_RD_ADDR _MMIO(0x4700)
#define GEN9_GAMT_ECO_REG_RW_IA _MMIO(0x4ab0)
#define GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS (1<<18)
#define GAMT_CHKN_BIT_REG _MMIO(0x4ab8) #define GAMT_CHKN_BIT_REG _MMIO(0x4ab8)
#define GAMT_CHKN_DISABLE_DYNAMIC_CREDIT_SHARING (1<<28) #define GAMT_CHKN_DISABLE_DYNAMIC_CREDIT_SHARING (1<<28)
......
...@@ -1104,6 +1104,11 @@ static int skl_init_workarounds(struct intel_engine_cs *engine) ...@@ -1104,6 +1104,11 @@ static int skl_init_workarounds(struct intel_engine_cs *engine)
/* WaDisableGafsUnitClkGating:skl */ /* WaDisableGafsUnitClkGating:skl */
WA_SET_BIT(GEN7_UCGCTL4, GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE); WA_SET_BIT(GEN7_UCGCTL4, GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE);
/* WaInPlaceDecompressionHang:skl */
if (IS_SKL_REVID(dev_priv, SKL_REVID_H0, REVID_FOREVER))
WA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA,
GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
/* WaDisableLSQCROPERFforOCL:skl */ /* WaDisableLSQCROPERFforOCL:skl */
ret = wa_ring_whitelist_reg(engine, GEN8_L3SQCREG4); ret = wa_ring_whitelist_reg(engine, GEN8_L3SQCREG4);
if (ret) if (ret)
...@@ -1173,6 +1178,11 @@ static int bxt_init_workarounds(struct intel_engine_cs *engine) ...@@ -1173,6 +1178,11 @@ static int bxt_init_workarounds(struct intel_engine_cs *engine)
WA_SET_BIT_MASKED(COMMON_SLICE_CHICKEN2, WA_SET_BIT_MASKED(COMMON_SLICE_CHICKEN2,
GEN8_SBE_DISABLE_REPLAY_BUF_OPTIMIZATION); GEN8_SBE_DISABLE_REPLAY_BUF_OPTIMIZATION);
/* WaInPlaceDecompressionHang:bxt */
if (IS_BXT_REVID(dev_priv, BXT_REVID_C0, REVID_FOREVER))
WA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA,
GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
return 0; return 0;
} }
...@@ -1220,6 +1230,10 @@ static int kbl_init_workarounds(struct intel_engine_cs *engine) ...@@ -1220,6 +1230,10 @@ static int kbl_init_workarounds(struct intel_engine_cs *engine)
GEN7_HALF_SLICE_CHICKEN1, GEN7_HALF_SLICE_CHICKEN1,
GEN7_SBE_SS_CACHE_DISPATCH_PORT_SHARING_DISABLE); GEN7_SBE_SS_CACHE_DISPATCH_PORT_SHARING_DISABLE);
/* WaInPlaceDecompressionHang:kbl */
WA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA,
GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
/* WaDisableLSQCROPERFforOCL:kbl */ /* WaDisableLSQCROPERFforOCL:kbl */
ret = wa_ring_whitelist_reg(engine, GEN8_L3SQCREG4); ret = wa_ring_whitelist_reg(engine, GEN8_L3SQCREG4);
if (ret) if (ret)
......
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