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authorRadhakrishna Sripada <radhakrishna.sripada@intel.com>2019-11-13 15:19:53 -0800
committerChris Wilson <chris@chris-wilson.co.uk>2019-11-13 23:33:28 +0000
commit5ba2bb587d89f0d44fbe4b74492c20dbf840cbfe (patch)
treedc42815ec8dc13d54334203f2b3ac0048b06c90c /drivers/gpu/drm/i915/gt/intel_workarounds.c
parent48715f7001742e0d1cb20cffab1a0d75f5f7ad72 (diff)
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
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_workarounds.c')
-rw-r--r--drivers/gpu/drm/i915/gt/intel_workarounds.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index e4bccc14602f..399acae2f33f 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -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)) {