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drm/i915/gvt: add missing display part reset for vGPU reset

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We also need reset vGPU virtual display emulation. Since all vreg has
been cleared, we need reset display related vreg to reflect our display
setting.

Signed-off-by: Changbin Du <changbin.du@intel.com>
Cc: Ping Gao <ping.a.gao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
This commit is contained in:
Changbin Du 2017-02-14 14:50:18 +08:00 committed by Zhenyu Wang
parent 03806edc35
commit 6294b61ba7
3 changed files with 14 additions and 0 deletions
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12
drivers/gpu/drm/i915/gvt/display.c
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@ -333,3 +333,15 @@ int intel_vgpu_init_display(struct intel_vgpu *vgpu)
else
return setup_virtual_dp_monitor(vgpu, PORT_B, GVT_DP_B);
}
/**
* intel_vgpu_reset_display- reset vGPU virtual display emulation
* @vgpu: a vGPU
*
* This function is used to reset vGPU virtual display emulation stuffs
*
*/
void intel_vgpu_reset_display(struct intel_vgpu *vgpu)
{
emulate_monitor_status_change(vgpu);
}

1
drivers/gpu/drm/i915/gvt/display.h
View File

@ -158,6 +158,7 @@ void intel_gvt_emulate_vblank(struct intel_gvt *gvt);
void intel_gvt_check_vblank_emulation(struct intel_gvt *gvt);
int intel_vgpu_init_display(struct intel_vgpu *vgpu);
void intel_vgpu_reset_display(struct intel_vgpu *vgpu);
void intel_vgpu_clean_display(struct intel_vgpu *vgpu);
#endif

1
drivers/gpu/drm/i915/gvt/vgpu.c
View File

@ -385,6 +385,7 @@ void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr,
intel_vgpu_reset_resource(vgpu);
intel_vgpu_reset_mmio(vgpu);
populate_pvinfo_page(vgpu);
intel_vgpu_reset_display(vgpu);
if (dmlr)
intel_vgpu_reset_cfg_space(vgpu);