drm/i915/gvt: Fix cmd parser error for Passmark9

This is to add one new register required for windows guest driver
update when running Passmark9, otherwise cmd parser would complain
and fail guest workload.

Cc: Terrence Xu <terrence.xu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20211011043329.3519093-1-zhenyuw@linux.intel.com
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>

diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c
index cde0a477fb497ef02c6d8a31f24be496fb00c722..805fee4e91efae197dbbdb561e7487d553c88e2c 100644 (file)
--- a/drivers/gpu/drm/i915/gvt/handlers.c
+++ b/drivers/gpu/drm/i915/gvt/handlers.c
@@ -3436,6 +3436,7 @@ static int init_skl_mmio_info(struct intel_gvt *gvt)
 
        MMIO_DFH(GAMT_CHKN_BIT_REG, D_KBL | D_CFL, F_CMD_ACCESS, NULL, NULL);
        MMIO_D(GEN9_CTX_PREEMPT_REG, D_SKL_PLUS & ~D_BXT);
+       MMIO_DFH(_MMIO(0xe4cc), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
 
        return 0;
 }