diff options
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index b7525f78ac51..bee0a45082e2 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -752,8 +752,14 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM); dev_priv->active_master = &dev_priv->fbdev_master; - dev_priv->mmio_virt = ioremap_cache(dev_priv->mmio_start, - dev_priv->mmio_size); + /* + * Force __iomem for this mapping until the implied compiler + * barriers and {READ|WRITE}_ONCE semantics from the + * io{read|write}32() accessors can be replaced with explicit + * barriers. + */ + dev_priv->mmio_virt = (void __iomem *) memremap(dev_priv->mmio_start, + dev_priv->mmio_size, MEMREMAP_WB); if (unlikely(dev_priv->mmio_virt == NULL)) { ret = -ENOMEM; @@ -907,7 +913,7 @@ out_no_irq: out_no_device: ttm_object_device_release(&dev_priv->tdev); out_err4: - iounmap(dev_priv->mmio_virt); + memunmap((void __force *) dev_priv->mmio_virt); out_err3: vmw_ttm_global_release(dev_priv); out_err0: @@ -958,7 +964,7 @@ static int vmw_driver_unload(struct drm_device *dev) pci_release_regions(dev->pdev); ttm_object_device_release(&dev_priv->tdev); - iounmap(dev_priv->mmio_virt); + memunmap((void __force *) dev_priv->mmio_virt); if (dev_priv->ctx.staged_bindings) vmw_binding_state_free(dev_priv->ctx.staged_bindings); vmw_ttm_global_release(dev_priv); |