[Intel-gfx] [PATCH 05/11] drm/i915/icl: WaSendPushConstantsFromMMIO

[Oscar Mateo]

Allows UMDs to set 'Disable Gather at Set Shader Common Slice'.

Do Linux UMDs make use of this? This change has been security
reviewed and the whitelisting approved. Virtualization of other
OSes could certainly use it...

v2: Rebased
v3: Rebased on top of the WA refactoring
v4: Rebased on top of the WA whitelist reg refactoring (Michel)
v5: Added References (Mika)

References: HSDES#1405764967
Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo at intel.com>
---
 drivers/gpu/drm/i915/intel_workarounds.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c
index e9c00b0..804de04 100644
--- a/drivers/gpu/drm/i915/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/intel_workarounds.c
@@ -963,6 +963,8 @@ static void cnl_whitelist_build(struct whitelist *w)
 
 static void icl_whitelist_build(struct whitelist *w)
 {
+	/* WaSendPushConstantsFromMMIO:icl */
+	whitelist_reg(w, COMMON_SLICE_CHICKEN2);
 }
 
 static struct whitelist *whitelist_build(struct intel_engine_cs *engine,
-- 
1.9.1