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| author | Michał Winiarski | 2019-03-05 13:48:26 +0100 |
|---|---|---|
| committer | Chris Wilson | 2019-03-05 19:55:06 +0100 |
| commit | d846325ad0e5cd06f441299cdbec6ab8ba3a3c45 (patch) | |
| tree | 10ed62a47fe74d6a36e8a092aa323b1fcc1025b7 /drivers/gpu/drm/i915/intel_workarounds.c | |
| parent | drm/i915: Move find_active_request() to the engine (diff) | |
| download | kernel-qcow2-linux-d846325ad0e5cd06f441299cdbec6ab8ba3a3c45.tar.gz kernel-qcow2-linux-d846325ad0e5cd06f441299cdbec6ab8ba3a3c45.tar.xz kernel-qcow2-linux-d846325ad0e5cd06f441299cdbec6ab8ba3a3c45.zip | |
drm/i915/icl: Default to Thread Group preemption for compute workloads
We assumed that the default preemption granularity is fine for ICL.
Unfortunately, it turns out that some drivers don't support mid-thread
preemption for compute workloads.
If a workload that doesn't support mid-thread preemption gets mid-thread
preempted, we're going to observe a GPU hang.
While I'm here, let's also update the "workaround" naming.
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Cc: Anuj Phogat <anuj.phogat@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Rafael Antognolli <rafael.antognolli@intel.com>
Tested-by: Anuj Phogat <anuj.phogat@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Rafael Antognolli <rafael.antognolli@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190305124827.23446-1-michal.winiarski@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_workarounds.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_workarounds.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c index 2ff54950891e..283e9a4ef3ca 100644 --- a/drivers/gpu/drm/i915/intel_workarounds.c +++ b/drivers/gpu/drm/i915/intel_workarounds.c @@ -555,6 +555,11 @@ static void icl_ctx_workarounds_init(struct intel_engine_cs *engine) GEN10_CACHE_MODE_SS, 0, /* write-only, so skip validation */ _MASKED_BIT_ENABLE(FLOAT_BLEND_OPTIMIZATION_ENABLE)); + + /* WaDisableGPGPUMidThreadPreemption:icl */ + WA_SET_FIELD_MASKED(GEN8_CS_CHICKEN1, + GEN9_PREEMPT_GPGPU_LEVEL_MASK, + GEN9_PREEMPT_GPGPU_THREAD_GROUP_LEVEL); } void intel_engine_init_ctx_wa(struct intel_engine_cs *engine) @@ -1162,8 +1167,8 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal) GEN7_DISABLE_SAMPLER_PREFETCH); } - if (IS_GEN(i915, 9) || IS_CANNONLAKE(i915)) { - /* WaEnablePreemptionGranularityControlByUMD:skl,bxt,kbl,cfl,cnl */ + if (IS_GEN_RANGE(i915, 9, 11)) { + /* FtrPerCtxtPreemptionGranularityControl:skl,bxt,kbl,cfl,cnl,icl */ wa_masked_en(wal, GEN7_FF_SLICE_CS_CHICKEN1, GEN9_FFSC_PERCTX_PREEMPT_CTRL); |