From 6294b61ba769ba2cc4a182c32410aa4a75808fea Mon Sep 17 00:00:00 2001 From: Changbin Du Date: Tue, 14 Feb 2017 14:50:18 +0800 Subject: [PATCH] drm/i915/gvt: add missing display part reset for vGPU reset 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 Cc: Ping Gao Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/display.c | 12 ++++++++++++ drivers/gpu/drm/i915/gvt/display.h | 1 + drivers/gpu/drm/i915/gvt/vgpu.c | 1 + 3 files changed, 14 insertions(+) diff --git a/drivers/gpu/drm/i915/gvt/display.c b/drivers/gpu/drm/i915/gvt/display.c index 1a4430724069..6d8fde880c39 100644 --- a/drivers/gpu/drm/i915/gvt/display.c +++ b/drivers/gpu/drm/i915/gvt/display.c @@ -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); +} diff --git a/drivers/gpu/drm/i915/gvt/display.h b/drivers/gpu/drm/i915/gvt/display.h index 7a60cb848268..8b234ea961f6 100644 --- a/drivers/gpu/drm/i915/gvt/display.h +++ b/drivers/gpu/drm/i915/gvt/display.h @@ -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 diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c index 67d471cee79e..95a97aa0051e 100644 --- a/drivers/gpu/drm/i915/gvt/vgpu.c +++ b/drivers/gpu/drm/i915/gvt/vgpu.c @@ -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); -- 2.39.5