Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
[sfrench/cifs-2.6.git] / drivers / gpu / drm / vmwgfx / vmwgfx_drv.c
index 1db1ef30be2b2b87fbef3ee08df4f98c345421bb..b793c8c9acb3162049fabe03b7cf43cfab1939fb 100644 (file)
@@ -88,6 +88,9 @@
 #define DRM_IOCTL_VMW_FENCE_WAIT                               \
        DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_WAIT,         \
                 struct drm_vmw_fence_wait_arg)
+#define DRM_IOCTL_VMW_UPDATE_LAYOUT                            \
+       DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT,      \
+                struct drm_vmw_update_layout_arg)
 
 
 /**
@@ -135,7 +138,9 @@ static struct drm_ioctl_desc vmw_ioctls[] = {
        VMW_IOCTL_DEF(DRM_IOCTL_VMW_FIFO_DEBUG, vmw_fifo_debug_ioctl,
                      DRM_AUTH | DRM_ROOT_ONLY | DRM_MASTER | DRM_UNLOCKED),
        VMW_IOCTL_DEF(DRM_IOCTL_VMW_FENCE_WAIT, vmw_fence_wait_ioctl,
-                     DRM_AUTH | DRM_UNLOCKED)
+                     DRM_AUTH | DRM_UNLOCKED),
+       VMW_IOCTL_DEF(DRM_IOCTL_VMW_UPDATE_LAYOUT, vmw_kms_update_layout_ioctl,
+                     DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED)
 };
 
 static struct pci_device_id vmw_pci_id_list[] = {
@@ -147,6 +152,8 @@ 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 +214,7 @@ 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 +225,7 @@ 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 +245,16 @@ 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) {
@@ -304,6 +323,15 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
                goto out_err3;
        }
 
+       /* Need mmio memory to check for fifo pitchlock cap. */
+       if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) &&
+           !(dev_priv->capabilities & SVGA_CAP_PITCHLOCK) &&
+           !vmw_fifo_have_pitchlock(dev_priv)) {
+               ret = -ENOSYS;
+               DRM_ERROR("Hardware has no pitchlock\n");
+               goto out_err4;
+       }
+
        dev_priv->tdev = ttm_object_device_init
            (dev_priv->mem_global_ref.object, 12);
 
@@ -334,22 +362,24 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
                 */
 
                DRM_INFO("It appears like vesafb is loaded. "
-                        "Ignore above error if any. Entering stealth mode.\n");
+                        "Ignore above error if any.\n");
                ret = pci_request_region(dev->pdev, 2, "vmwgfx stealth probe");
                if (unlikely(ret != 0)) {
                        DRM_ERROR("Failed reserving the SVGA MMIO resource.\n");
                        goto out_no_device;
                }
-               vmw_kms_init(dev_priv);
-               vmw_overlay_init(dev_priv);
-       } else {
-               ret = vmw_request_device(dev_priv);
-               if (unlikely(ret != 0))
-                       goto out_no_device;
-               vmw_kms_init(dev_priv);
-               vmw_overlay_init(dev_priv);
-               vmw_fb_init(dev_priv);
        }
+       ret = vmw_request_device(dev_priv);
+       if (unlikely(ret != 0))
+               goto out_no_device;
+       vmw_kms_init(dev_priv);
+       vmw_overlay_init(dev_priv);
+       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;
 
@@ -383,19 +413,17 @@ static int vmw_driver_unload(struct drm_device *dev)
 {
        struct vmw_private *dev_priv = vmw_priv(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);
-               vmw_overlay_close(dev_priv);
-               vmw_release_device(dev_priv);
-               pci_release_regions(dev->pdev);
-       } else {
-               vmw_kms_close(dev_priv);
-               vmw_overlay_close(dev_priv);
+       vmw_fb_close(dev_priv);
+       vmw_kms_close(dev_priv);
+       vmw_overlay_close(dev_priv);
+       vmw_release_device(dev_priv);
+       if (dev_priv->stealth)
                pci_release_region(dev->pdev, 2);
-       }
+       else
+               pci_release_regions(dev->pdev);
+
        if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
                drm_irq_uninstall(dev_priv->dev);
        if (dev->devname == vmw_devname)
@@ -530,7 +558,6 @@ static int vmw_master_create(struct drm_device *dev,
 {
        struct vmw_master *vmaster;
 
-       DRM_INFO("Master create.\n");
        vmaster = kzalloc(sizeof(*vmaster), GFP_KERNEL);
        if (unlikely(vmaster == NULL))
                return -ENOMEM;
@@ -547,7 +574,6 @@ static void vmw_master_destroy(struct drm_device *dev,
 {
        struct vmw_master *vmaster = vmw_master(master);
 
-       DRM_INFO("Master destroy.\n");
        master->driver_priv = NULL;
        kfree(vmaster);
 }
@@ -563,13 +589,6 @@ static int vmw_master_set(struct drm_device *dev,
        struct vmw_master *vmaster = vmw_master(file_priv->master);
        int ret = 0;
 
-       DRM_INFO("Master set.\n");
-       if (dev_priv->stealth) {
-               ret = vmw_request_device(dev_priv);
-               if (unlikely(ret != 0))
-                       return ret;
-       }
-
        if (active) {
                BUG_ON(active != &dev_priv->fbdev_master);
                ret = ttm_vt_lock(&active->lock, false, vmw_fp->tfile);
@@ -611,8 +630,6 @@ static void vmw_master_drop(struct drm_device *dev,
        struct vmw_master *vmaster = vmw_master(file_priv->master);
        int ret;
 
-       DRM_INFO("Master drop.\n");
-
        /**
         * Make sure the master doesn't disappear while we have
         * it locked.
@@ -628,18 +645,11 @@ static void vmw_master_drop(struct drm_device *dev,
 
        ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
 
-       if (dev_priv->stealth) {
-               ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM);
-               if (unlikely(ret != 0))
-                       DRM_ERROR("Unable to clean VRAM on master drop.\n");
-               vmw_release_device(dev_priv);
-       }
        dev_priv->active_master = &dev_priv->fbdev_master;
        ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
        ttm_vt_unlock(&dev_priv->fbdev_master.lock);
 
-       if (!dev_priv->stealth)
-               vmw_fb_on(dev_priv);
+       vmw_fb_on(dev_priv);
 }
 
 
@@ -650,6 +660,57 @@ 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 +750,9 @@ 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,