Merge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[sfrench/cifs-2.6.git] / drivers / gpu / drm / vmwgfx / vmwgfx_drv.c

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index dedd121d8fe7153381942922581a20e413037582..a6e8f687fa64cc14980600ecc2fa5c4f7486f8ad 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -209,6 +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)) {
@@ -239,6 +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) {
@@ -357,6 +368,8 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
        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: