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| author | Dongwon Kim <dongwon.kim@intel.com> | 2019-04-25 06:50:05 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-05-24 10:06:26 +0100 |
| commit | 397049a03022702defa65694c23643f96d5fa113 (patch) | |
| tree | f72f5657e7f3ca3c159e8889401061032575962e /drivers/gpu | |
| parent | 63e8dcdb4f8e596f2a290af4278e0bca3304a1f1 (diff) | |
| download | linux-397049a03022702defa65694c23643f96d5fa113.tar.gz linux-397049a03022702defa65694c23643f96d5fa113.tar.bz2 linux-397049a03022702defa65694c23643f96d5fa113.zip | |
drm/i915/gen11: enable support for headerless msgs
Setting bit5 (headerless msg for preemptible GPGPU context) of SAMPLER_MODE
register to enable support for the headless msgs on gen11. None of existing
use cases will be affected by this as this change makes both types of
message - headerless and w/ header supported at the same time. It also
complies with the new recommendation for the default bit value for the
next gen.
v2: rewrote commit message to include more information
v3: setting the bit in icl_ctx_workarounds_init()
Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190425055005.21790-1-chris@chris-wilson.co.uk
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_workarounds.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 1 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index 990b278a36d1..ce4bcca3f83c 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -573,6 +573,10 @@ static void icl_ctx_workarounds_init(struct intel_engine_cs *engine, WA_SET_FIELD_MASKED(GEN8_CS_CHICKEN1, GEN9_PREEMPT_GPGPU_LEVEL_MASK, GEN9_PREEMPT_GPGPU_THREAD_GROUP_LEVEL); + + /* allow headerless messages for preemptible GPGPU context */ + WA_SET_BIT_MASKED(GEN10_SAMPLER_MODE, + GEN11_SAMPLER_ENABLE_HEADLESS_MSG); } static void diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index bba420aaa4ab..49dce04dd688 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -8866,6 +8866,7 @@ enum { #define GEN11_LSN_UNSLCVC_GAFS_HALF_SF_MAXALLOC (1 << 7) #define GEN10_SAMPLER_MODE _MMIO(0xE18C) +#define GEN11_SAMPLER_ENABLE_HEADLESS_MSG REG_BIT(5) /* IVYBRIDGE DPF */ #define GEN7_L3CDERRST1(slice) _MMIO(0xB008 + (slice) * 0x200) /* L3CD Error Status 1 */ |