-----Original Message----- From: Hajda, Andrzej <[email protected]> Sent: Friday, October 20, 2023 5:09 AM To: [email protected] Cc: Nirmoy Das <[email protected]>; Shyti, Andi <[email protected]>; Cavitt, Jonathan <[email protected]>; Das, Nirmoy <[email protected]> Subject: [PATCH v2 4/4] drm/i915: Set copy engine arbitration for Wa_16018031267 / Wa_16018063123 > > From: Jonathan Cavitt <[email protected]> > > Set copy engine arbitration into round robin mode > for part of Wa_16018031267 / Wa_16018063123 mitigation. > > Signed-off-by: Nirmoy Das <[email protected]> > Signed-off-by: Jonathan Cavitt <[email protected]>
Reviewed-by: Jonathan Cavitt <[email protected]> -Jonathan Cavitt > --- > drivers/gpu/drm/i915/gt/intel_engine_regs.h | 3 +++ > drivers/gpu/drm/i915/gt/intel_workarounds.c | 5 +++++ > 2 files changed, 8 insertions(+) > > diff --git a/drivers/gpu/drm/i915/gt/intel_engine_regs.h > b/drivers/gpu/drm/i915/gt/intel_engine_regs.h > index b8618ee3e3041a..c0c8c12edea104 100644 > --- a/drivers/gpu/drm/i915/gt/intel_engine_regs.h > +++ b/drivers/gpu/drm/i915/gt/intel_engine_regs.h > @@ -124,6 +124,9 @@ > #define RING_INDIRECT_CTX(base) _MMIO((base) + 0x1c4) > /* gen8+ */ > #define RING_INDIRECT_CTX_OFFSET(base) _MMIO((base) + 0x1c8) > /* gen8+ */ > #define ECOSKPD(base) _MMIO((base) + 0x1d0) > +#define XEHP_BLITTER_SCHEDULING_MODE_MASK REG_GENMASK(12, 11) > +#define XEHP_BLITTER_ROUND_ROBIN_MODE \ > + REG_FIELD_PREP(XEHP_BLITTER_SCHEDULING_MODE_MASK, 1) > #define ECO_CONSTANT_BUFFER_SR_DISABLE REG_BIT(4) > #define ECO_GATING_CX_ONLY REG_BIT(3) > #define GEN6_BLITTER_FBC_NOTIFY REG_BIT(3) > diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c > b/drivers/gpu/drm/i915/gt/intel_workarounds.c > index 192ac0e59afa13..108d9326735910 100644 > --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c > +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c > @@ -2782,6 +2782,11 @@ xcs_engine_wa_init(struct intel_engine_cs *engine, > struct i915_wa_list *wal) > RING_SEMA_WAIT_POLL(engine->mmio_base), > 1); > } > + /* Wa_16018031267, Wa_16018063123 */ > + if (NEEDS_FASTCOLOR_BLT_WABB(engine)) > + wa_masked_field_set(wal, ECOSKPD(engine->mmio_base), > + XEHP_BLITTER_SCHEDULING_MODE_MASK, > + XEHP_BLITTER_ROUND_ROBIN_MODE); > } > > static void > -- > 2.34.1 > >
