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path: root/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
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Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_drv.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_drv.c76
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 1db1ef30be2..a6e8f687fa6 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,