From 259170cb4c84f4165a36c0b05811eb74c495412c Mon Sep 17 00:00:00 2001 From: Tina Zhang Date: Thu, 27 Feb 2020 09:00:41 +0800 Subject: [PATCH] drm/i915/gvt: Fix dma-buf display blur issue on CFL Commit c3b5a8430daad ("drm/i915/gvt: Enable gfx virtualiztion for CFL") added the support on CFL. The vgpu emulation hotplug support on CFL was supposed to be included in that patch. Without the vgpu emulation hotplug support, the dma-buf based display gives us a blur face. So fix this issue by adding the vgpu emulation hotplug support on CFL. Fixes: c3b5a8430daad ("drm/i915/gvt: Enable gfx virtualiztion for CFL") Signed-off-by: Tina Zhang Acked-by: Zhenyu Wang Signed-off-by: Zhenyu Wang Link: http://patchwork.freedesktop.org/patch/msgid/20200227010041.32248-1-tina.zhang@intel.com (cherry picked from commit 135dde8853c7e00f6002e710f7e4787ed8585c0e) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/gvt/display.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gvt/display.c b/drivers/gpu/drm/i915/gvt/display.c index e1c313da6c00..a62bdf9be682 100644 --- a/drivers/gpu/drm/i915/gvt/display.c +++ b/drivers/gpu/drm/i915/gvt/display.c @@ -457,7 +457,8 @@ void intel_vgpu_emulate_hotplug(struct intel_vgpu *vgpu, bool connected) struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; /* TODO: add more platforms support */ - if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) { + if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv) || + IS_COFFEELAKE(dev_priv)) { if (connected) { vgpu_vreg_t(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDID_DETECTED;