diff options
| author |   Colin Xu <colin.xu@intel.com> | 2020-08-19 09:09:00 +0800 |
|---|---|---|
| committer |   Zhenyu Wang <zhenyuw@linux.intel.com> | 2020-09-10 13:49:05 +0800 |
| commit | df398e33b8fd3ac28b3c7166de555e38d26e7391 (patch) | |
| tree | 3c6fc55259483ebef17b3cdc05ef15bf81bc0064 /drivers/gpu/drm/i915/gvt/mmio.c | |
| parent | drm/i915/gvt: Add F_CMD_ACCESS for some GEN9 SKU WA MMIO access (diff) | |
| download | linux-dev-df398e33b8fd3ac28b3c7166de555e38d26e7391.tar.xz linux-dev-df398e33b8fd3ac28b3c7166de555e38d26e7391.zip | |
drm/i915/gvt: Init vreg GUC_STATUS to GS_MIA_IN_RESET
Although GVT doesn't support guest GuC, MIA core is still expected
to be GS_MIA_IN_RESET after uc HW reset.
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Colin Xu <colin.xu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200819010900.54598-1-colin.xu@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/mmio.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/mmio.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/mmio.c b/drivers/gpu/drm/i915/gvt/mmio.c index 291993615af9..b6811f6a230d 100644 --- a/drivers/gpu/drm/i915/gvt/mmio.c +++ b/drivers/gpu/drm/i915/gvt/mmio.c @@ -251,6 +251,9 @@ void intel_vgpu_reset_mmio(struct intel_vgpu *vgpu, bool dmlr) /* set the bit 0:2(Core C-State ) to C0 */ vgpu_vreg_t(vgpu, GEN6_GT_CORE_STATUS) = 0; + /* uc reset hw expect GS_MIA_IN_RESET */ + vgpu_vreg_t(vgpu, GUC_STATUS) |= GS_MIA_IN_RESET; + if (IS_BROXTON(vgpu->gvt->gt->i915)) { vgpu_vreg_t(vgpu, BXT_P_CR_GT_DISP_PWRON) &= ~(BIT(0) | BIT(1)); |