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| author | Thomas Hellstrom <thellstrom@vmware.com> | 2015-10-28 12:44:04 +0300 |
|---|---|---|
| committer | Thomas Hellstrom <thellstrom@vmware.com> | 2015-11-02 11:16:05 +0300 |
| commit | b76ff5ea1cf6fe648e7ce2b84e636f8a95849a0b (patch) | |
| tree | aa98933f03015d9841574bd386f3f650eb407adf /drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | |
| parent | 53c1e53571b1552204b2111b9fff5086f091bc9a (diff) | |
| download | linux-b76ff5ea1cf6fe648e7ce2b84e636f8a95849a0b.tar.xz | |
drm/vmwgfx: Replace iowrite/ioread with volatile memory accesses
Now that we use memremap instead of ioremap, Use WRITE_ONCE / READ_ONCE
instead of iowrite / ioread.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_drv.c')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index bee0a45082e2..d1c34aba7abd 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -752,14 +752,8 @@ 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; - /* - * 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); + dev_priv->mmio_virt = memremap(dev_priv->mmio_start, + dev_priv->mmio_size, MEMREMAP_WB); if (unlikely(dev_priv->mmio_virt == NULL)) { ret = -ENOMEM; @@ -913,7 +907,7 @@ out_no_irq: out_no_device: ttm_object_device_release(&dev_priv->tdev); out_err4: - memunmap((void __force *) dev_priv->mmio_virt); + memunmap(dev_priv->mmio_virt); out_err3: vmw_ttm_global_release(dev_priv); out_err0: @@ -964,7 +958,7 @@ static int vmw_driver_unload(struct drm_device *dev) pci_release_regions(dev->pdev); ttm_object_device_release(&dev_priv->tdev); - memunmap((void __force *) dev_priv->mmio_virt); + memunmap(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); |