diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_dma.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_vgpu.h | 4 |
2 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 1a46787129e7..5804aa5f9df0 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -36,6 +36,7 @@ #include "intel_drv.h" #include <drm/i915_drm.h> #include "i915_drv.h" +#include "i915_vgpu.h" #include "i915_trace.h" #include <linux/pci.h> #include <linux/console.h> @@ -842,6 +843,13 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) } } + /* + * Notify a valid surface after modesetting, + * when running inside a VM. + */ + if (intel_vgpu_active(dev)) + I915_WRITE(vgtif_reg(display_ready), VGT_DRV_DISPLAY_READY); + i915_setup_sysfs(dev); if (INTEL_INFO(dev)->num_pipes) { diff --git a/drivers/gpu/drm/i915/i915_vgpu.h b/drivers/gpu/drm/i915/i915_vgpu.h index 3ed01a7ac48e..0db9ccf32605 100644 --- a/drivers/gpu/drm/i915/i915_vgpu.h +++ b/drivers/gpu/drm/i915/i915_vgpu.h @@ -80,6 +80,10 @@ struct vgt_if { #define vgtif_reg(x) \ (VGT_PVINFO_PAGE + (long)&((struct vgt_if *)NULL)->x) +/* vGPU display status to be used by the host side */ +#define VGT_DRV_DISPLAY_NOT_READY 0 +#define VGT_DRV_DISPLAY_READY 1 /* ready for display switch */ + extern void i915_check_vgpu(struct drm_device *dev); extern int intel_vgt_balloon(struct drm_device *dev); extern void intel_vgt_deballoon(void); |