Commit 5ba2bb58 authored Nov 13, 2019 by Radhakrishna Sripada Committed by Chris Wilson Nov 13, 2019

drm/i915/tgl: Wa_1606679103



Extend disabling SAMPLER_STATE prefetch workaround to gen12.

v2: Limit the WA to TGL A0 and update the WA no(Chris)

BSpec: 52890
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191113231953.24853-1-radhakrishna.sripada@intel.com

parent 48715f70

drivers/gpu/drm/i915/gt/intel_workarounds.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -1315,6 +1315,14 @@ rcs_engine_wa_init(struct intel_engine_cs engine, struct i915_wa_list wal)
		GEN6_RC_SLEEP_PSMI_CONTROL,
		GEN12_WAIT_FOR_EVENT_POWER_DOWN_DISABLE \|
		GEN8_RC_SEMA_IDLE_MSG_DISABLE);

		/*
		* Wa_1606679103:tgl
		* (see also Wa_1606682166:icl)
		*/
		wa_write_or(wal,
		GEN7_SARCHKMD,
		GEN7_DISABLE_SAMPLER_PREFETCH);
		}

		if (IS_GEN(i915, 11)) {

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