[Intel-gfx] [PATCH] drm/i915: Skip Bit12 fw domain reset for gen12+

[Radhakrishna Sripada]

Bit12 of the Forcewake request register should not be cleared post
gen12. Do not touch this bit while clearing during fw domain reset.

Bspec: 52542

Signed-off-by: Sushma Venkatesh Reddy <sushma.venkatesh.reddy at intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada at intel.com>
---
 drivers/gpu/drm/i915/intel_uncore.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index a852c471d1b3..c85e2b686c95 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -113,7 +113,10 @@ fw_domain_reset(const struct intel_uncore_forcewake_domain *d)
 	 * off in ICL+), so no waiting for acks
 	 */
 	/* WaRsClearFWBitsAtReset:bdw,skl */
-	fw_clear(d, 0xffff);
+	if (GRAPHICS_VER(d->uncore->i915) >= 12)
+		fw_clear(d, 0xefff);
+	else
+		fw_clear(d, 0xffff);
 }
 
 static inline void
-- 
2.25.1