[PATCH 2/3] drm/i915/tgl: allow the reg_read ioctl to read the RCS TIMESTAMP register

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From: Jordan Justen <jordan.l.justen@xxxxxxxxx>

This enables the Mesa driver to advertise support for ARB_timer_query,
and thus an OpenGL version higher than 3.2.

Based on the ICL patch by Paulo Zanoni and CNL patch by Nanley Chery.

Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Signed-off-by: Jordan Justen <jordan.l.justen@xxxxxxxxx>
Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
---
 drivers/gpu/drm/i915/intel_uncore.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 475ab3d4d91d..2b839acfa0f6 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -1776,7 +1776,7 @@ static const struct reg_whitelist {
 } reg_read_whitelist[] = { {
 	.offset_ldw = RING_TIMESTAMP(RENDER_RING_BASE),
 	.offset_udw = RING_TIMESTAMP_UDW(RENDER_RING_BASE),
-	.gen_mask = INTEL_GEN_MASK(4, 11),
+	.gen_mask = INTEL_GEN_MASK(4, 12),
 	.size = 8
 } };
 
-- 
2.21.0

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