[PATCH 5.19 017/155] drm/i915/gvt: Fix Comet Lake

Greg Kroah-Hartman
2022-09-06T13:57:51Z

From: Alex Williamson <alex.williamson@redhat.com>

[ Upstream commit b75ef35bb57791a5d675699ed4a40c870d1da12f ]

Prior to the commit below the GAMT_CHKN_BIT_REG address was setup for
devices matching (D_KBL | D_CFL), where intel_gvt_get_device_type()
returns D_CFL for either Coffee Lake or Comet Lake. Include the missed
platform.`

Link: https://lore.kernel.org/all/20220808142711.02d16782.alex.williamson@redhat.com
Fixes: e0f74ed4634d ("i915/gvt: Separate the MMIO tracking table from GVT-g")
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/166016852965.780835.10366587502693016900.stgit@omen
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/i915/intel_gvt_mmio_table.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_gvt_mmio_table.c b/drivers/gpu/drm/i915/intel_gvt_mmio_table.c
index 72dac1718f3e7..6163aeaee9b98 100644
--- a/drivers/gpu/drm/i915/intel_gvt_mmio_table.c
+++ b/drivers/gpu/drm/i915/intel_gvt_mmio_table.c
@@ -1074,7 +1074,8 @@ static int iterate_skl_plus_mmio(struct intel_gvt_mmio_table_iter *iter)
MMIO_D(GEN8_HDC_CHICKEN1);
MMIO_D(GEN9_WM_CHICKEN3);

- if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv))
+ if (IS_KABYLAKE(dev_priv) ||
+ IS_COFFEELAKE(dev_priv) || IS_COMETLAKE(dev_priv))
MMIO_D(GAMT_CHKN_BIT_REG);
if (!IS_BROXTON(dev_priv))
MMIO_D(GEN9_CTX_PREEMPT_REG);
--
2.35.1