diff options
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_drv.c')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 76 |
1 files changed, 75 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 1db1ef30be2b..a6e8f687fa64 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -147,6 +147,8 @@ static char *vmw_devname = "vmwgfx"; static int vmw_probe(struct pci_dev *, const struct pci_device_id *); static void vmw_master_init(struct vmw_master *); +static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val, + void *ptr); static void vmw_print_capabilities(uint32_t capabilities) { @@ -207,6 +209,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) { struct vmw_private *dev_priv; int ret; + uint32_t svga_id; dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL); if (unlikely(dev_priv == NULL)) { @@ -217,6 +220,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) dev_priv->dev = dev; dev_priv->vmw_chipset = chipset; + dev_priv->last_read_sequence = (uint32_t) -100; mutex_init(&dev_priv->hw_mutex); mutex_init(&dev_priv->cmdbuf_mutex); rwlock_init(&dev_priv->resource_lock); @@ -236,6 +240,16 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) dev_priv->mmio_start = pci_resource_start(dev->pdev, 2); mutex_lock(&dev_priv->hw_mutex); + + vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2); + svga_id = vmw_read(dev_priv, SVGA_REG_ID); + if (svga_id != SVGA_ID_2) { + ret = -ENOSYS; + DRM_ERROR("Unsuported SVGA ID 0x%x\n", svga_id); + mutex_unlock(&dev_priv->hw_mutex); + goto out_err0; + } + dev_priv->capabilities = vmw_read(dev_priv, SVGA_REG_CAPABILITIES); if (dev_priv->capabilities & SVGA_CAP_GMR) { @@ -351,6 +365,11 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) vmw_fb_init(dev_priv); } + dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier; + register_pm_notifier(&dev_priv->pm_nb); + + DRM_INFO("%s", vmw_fifo_have_3d(dev_priv) ? "Have 3D\n" : "No 3D\n"); + return 0; out_no_device: @@ -385,6 +404,8 @@ static int vmw_driver_unload(struct drm_device *dev) DRM_INFO(VMWGFX_DRIVER_NAME " unload.\n"); + unregister_pm_notifier(&dev_priv->pm_nb); + if (!dev_priv->stealth) { vmw_fb_close(dev_priv); vmw_kms_close(dev_priv); @@ -650,6 +671,57 @@ static void vmw_remove(struct pci_dev *pdev) drm_put_dev(dev); } +static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val, + void *ptr) +{ + struct vmw_private *dev_priv = + container_of(nb, struct vmw_private, pm_nb); + struct vmw_master *vmaster = dev_priv->active_master; + + switch (val) { + case PM_HIBERNATION_PREPARE: + case PM_SUSPEND_PREPARE: + ttm_suspend_lock(&vmaster->lock); + + /** + * This empties VRAM and unbinds all GMR bindings. + * Buffer contents is moved to swappable memory. + */ + ttm_bo_swapout_all(&dev_priv->bdev); + break; + case PM_POST_HIBERNATION: + case PM_POST_SUSPEND: + ttm_suspend_unlock(&vmaster->lock); + break; + case PM_RESTORE_PREPARE: + break; + case PM_POST_RESTORE: + break; + default: + break; + } + return 0; +} + +/** + * These might not be needed with the virtual SVGA device. + */ + +int vmw_pci_suspend(struct pci_dev *pdev, pm_message_t state) +{ + pci_save_state(pdev); + pci_disable_device(pdev); + pci_set_power_state(pdev, PCI_D3hot); + return 0; +} + +int vmw_pci_resume(struct pci_dev *pdev) +{ + pci_set_power_state(pdev, PCI_D0); + pci_restore_state(pdev); + return pci_enable_device(pdev); +} + static struct drm_driver driver = { .driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_MODESET, @@ -689,7 +761,9 @@ static struct drm_driver driver = { .name = VMWGFX_DRIVER_NAME, .id_table = vmw_pci_id_list, .probe = vmw_probe, - .remove = vmw_remove + .remove = vmw_remove, + .suspend = vmw_pci_suspend, + .resume = vmw_pci_resume }, .name = VMWGFX_DRIVER_NAME, .desc = VMWGFX_DRIVER_DESC, |