Chris Wilson <[email protected]> writes: > From: Dongwon Kim <[email protected]> > > Setting bit5 (headerless msg for preemptable 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 <[email protected]>
Reviewed-by: Mika Kuoppala <[email protected]> > --- > Merely kicking CI. > --- > drivers/gpu/drm/i915/gt/intel_workarounds.c | 4 ++++ > drivers/gpu/drm/i915/i915_reg.h | 1 + > 2 files changed, 5 insertions(+) > > diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c > b/drivers/gpu/drm/i915/gt/intel_workarounds.c > index 364696221fd7..e03181aeb451 100644 > --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c > +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c > @@ -575,6 +575,10 @@ 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 preemptable GPGPU context */ > + WA_SET_BIT_MASKED(GEN10_SAMPLER_MODE, > + GEN11_SAMPLER_ENABLE_HEADLESS_MSG); > } > > void intel_engine_init_ctx_wa(struct intel_engine_cs *engine) > diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h > index b74824f0b5b1..b45042f71c0a 100644 > --- a/drivers/gpu/drm/i915/i915_reg.h > +++ b/drivers/gpu/drm/i915/i915_reg.h > @@ -8862,6 +8862,7 @@ enum { > #define GEN11_LSN_UNSLCVC_GAFS_HALF_SF_MAXALLOC (1 << 7) > > #define GEN10_SAMPLER_MODE _MMIO(0xE18C) > +#define GEN11_SAMPLER_ENABLE_HEADLESS_MSG (1 << 5) > > /* IVYBRIDGE DPF */ > #define GEN7_L3CDERRST1(slice) _MMIO(0xB008 + (slice) * 0x200) > /* L3CD Error Status 1 */ > -- > 2.20.1 > > _______________________________________________ > Intel-gfx mailing list > [email protected] > https://lists.freedesktop.org/mailman/listinfo/intel-gfx _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
