diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_device.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_device.c | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index d0826fb0434c..21c44b2293bc 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -630,6 +630,23 @@ void radeon_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc) /* * GPU helpers function. */ + +/** + * radeon_device_is_virtual - check if we are running is a virtual environment + * + * Check if the asic has been passed through to a VM (all asics). + * Used at driver startup. + * Returns true if virtual or false if not. + */ +static bool radeon_device_is_virtual(void) +{ +#ifdef CONFIG_X86 + return boot_cpu_has(X86_FEATURE_HYPERVISOR); +#else + return false; +#endif +} + /** * radeon_card_posted - check if the hw has already been initialized * @@ -643,6 +660,10 @@ bool radeon_card_posted(struct radeon_device *rdev) { uint32_t reg; + /* for pass through, always force asic_init */ + if (radeon_device_is_virtual()) + return false; + /* required for EFI mode on macbook2,1 which uses an r5xx asic */ if (efi_enabled(EFI_BOOT) && (rdev->pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE) && @@ -1230,7 +1251,7 @@ static void radeon_switcheroo_set_state(struct pci_dev *pdev, enum vga_switchero printk(KERN_INFO "radeon: switched off\n"); drm_kms_helper_poll_disable(dev); dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; - radeon_suspend_kms(dev, true, true); + radeon_suspend_kms(dev, true, true, false); dev->switch_power_state = DRM_SWITCH_POWER_OFF; } } @@ -1555,7 +1576,8 @@ void radeon_device_fini(struct radeon_device *rdev) * Returns 0 for success or an error on failure. * Called at driver suspend. */ -int radeon_suspend_kms(struct drm_device *dev, bool suspend, bool fbcon) +int radeon_suspend_kms(struct drm_device *dev, bool suspend, + bool fbcon, bool freeze) { struct radeon_device *rdev; struct drm_crtc *crtc; @@ -1630,7 +1652,10 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend, bool fbcon) radeon_agp_suspend(rdev); pci_save_state(dev->pdev); - if (suspend) { + if (freeze && rdev->family >= CHIP_CEDAR) { + rdev->asic->asic_reset(rdev, true); + pci_restore_state(dev->pdev); + } else if (suspend) { /* Shut down the device */ pci_disable_device(dev->pdev); pci_set_power_state(dev->pdev, PCI_D3hot); |
