diff options
| author | Mika Kuoppala <[email protected]> | 2020-02-07 17:51:37 +0200 |
|---|---|---|
| committer | Chris Wilson <[email protected]> | 2020-02-07 20:51:19 +0000 |
| commit | 561db8296d8b88ac21e76f99ba95f8de2c830359 (patch) | |
| tree | 9e061e0d1f2a2c17a9f13825dc8ceb0ba37c8ceb | |
| parent | fb5970da1b428b6c0f89441b7d3015328da92cb6 (diff) | |
drm/i915: Disable tesselation clock gating on tgl A0
Disable TEDOP clock gating flow by programming 0x20A0[19] = 1
References: HSDES#1407928979
Signed-off-by: Mika Kuoppala <[email protected]>
Reviewed-by: Chris Wilson <[email protected]>
Signed-off-by: Chris Wilson <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_workarounds.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 1 |
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index 61106129287f..4bbea781c142 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -1352,6 +1352,11 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal) wa_write_or(wal, GEN7_SARCHKMD, GEN7_DISABLE_SAMPLER_PREFETCH); + + /* Wa_1407928979:tgl */ + wa_write_or(wal, + GEN7_FF_THREAD_MODE, + GEN12_FF_TESSELATION_DOP_GATE_DISABLE); } if (IS_GEN(i915, 11)) { diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index dc206723f25e..b62029a10ed6 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3165,6 +3165,7 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) #define GEN7_FF_THREAD_MODE _MMIO(0x20a0) #define GEN7_FF_SCHED_MASK 0x0077070 #define GEN8_FF_DS_REF_CNT_FFME (1 << 19) +#define GEN12_FF_TESSELATION_DOP_GATE_DISABLE BIT(19) #define GEN7_FF_TS_SCHED_HS1 (0x5 << 16) #define GEN7_FF_TS_SCHED_HS0 (0x3 << 16) #define GEN7_FF_TS_SCHED_LOAD_BALANCE (0x1 << 16) |