From: jsg <jsg@openbsd.org>
Date: Tue, 13 Aug 2024 04:04:53 +0000 (+0000)
Subject: drm/i915/mtl: Wake GT before sending H2G message
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=2da3df3d913daf2c6ec560ac3d74d00c92bb0576;p=openbsd

drm/i915/mtl: Wake GT before sending H2G message

From Vinay Belgaumkar
6d46d09a0d7dd412c5b76f74f89fe4448ba2117e in mainline linux
---

diff --git a/sys/dev/pci/drm/i915/intel_uncore.c b/sys/dev/pci/drm/i915/intel_uncore.c
index abff10e16f2..a1d42953045 100644
--- a/sys/dev/pci/drm/i915/intel_uncore.c
+++ b/sys/dev/pci/drm/i915/intel_uncore.c
@@ -1833,7 +1833,10 @@ static const struct intel_forcewake_range __mtl_fw_ranges[] = {
 	GEN_FW_RANGE(0x24000, 0x2ffff, 0), /*
 		0x24000 - 0x2407f: always on
 		0x24080 - 0x2ffff: reserved */
-	GEN_FW_RANGE(0x30000, 0x3ffff, FORCEWAKE_GT)
+	GEN_FW_RANGE(0x30000, 0x3ffff, FORCEWAKE_GT),
+	GEN_FW_RANGE(0x40000, 0x1901ef, 0),
+	GEN_FW_RANGE(0x1901f0, 0x1901f3, FORCEWAKE_GT)
+		/* FIXME: WA to wake GT while triggering H2G */
 };
 
 /*