drm: Replace DRM_IOCTL_ARGS with (dev, data, file_priv) and remove DRM_DEVICE.

The data is now in kernel space, copied in/out as appropriate according to t
This results in DRM_COPY_{TO,FROM}_USER going away, and error paths to deal
with those failures.  This also means that XFree86 4.2.0 support for i810 DR
is lost.

Signed-off-by: Dave Airlie <airlied@linux.ie>

1 files changed, 16 insertions, 28 deletions

diff --git a/drivers/char/drm/radeon_mem.c b/drivers/char/drm/radeon_mem.c
index 966d521cf27c..a29acfe2f973 100644
--- a/drivers/char/drm/radeon_mem.c
+++ b/drivers/char/drm/radeon_mem.c
@@ -217,11 +217,10 @@ static struct mem_block **get_heap(drm_radeon_private_t * dev_priv, int region)
         }
 }
 
-int radeon_mem_alloc(DRM_IOCTL_ARGS)
+int radeon_mem_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv)
 {
-        DRM_DEVICE;
         drm_radeon_private_t *dev_priv = dev->dev_private;
-        drm_radeon_mem_alloc_t alloc;
+        drm_radeon_mem_alloc_t *alloc = data;
         struct mem_block *block, **heap;
 
         if (!dev_priv) {
@@ -229,25 +228,23 @@ int radeon_mem_alloc(DRM_IOCTL_ARGS)
                 return -EINVAL;
         }
 
-        DRM_COPY_FROM_USER_IOCTL(alloc, (drm_radeon_mem_alloc_t __user *) data,
-                                 sizeof(alloc));
-
-        heap = get_heap(dev_priv, alloc.region);
+        heap = get_heap(dev_priv, alloc->region);
         if (!heap || !*heap)
                 return -EFAULT;
 
         /* Make things easier on ourselves: all allocations at least
          * 4k aligned.
          */
-        if (alloc.alignment < 12)
-                alloc.alignment = 12;
+        if (alloc->alignment < 12)
+                alloc->alignment = 12;
 
-        block = alloc_block(*heap, alloc.size, alloc.alignment, file_priv);
+        block = alloc_block(*heap, alloc->size, alloc->alignment, file_priv);
 
         if (!block)
                 return -ENOMEM;
 
-        if (DRM_COPY_TO_USER(alloc.region_offset, &block->start, sizeof(int))) {
+        if (DRM_COPY_TO_USER(alloc->region_offset, &block->start,
+                             sizeof(int))) {
                 DRM_ERROR("copy_to_user\n");
                 return -EFAULT;
         }
@@ -255,11 +252,10 @@ int radeon_mem_alloc(DRM_IOCTL_ARGS)
         return 0;
 }
 
-int radeon_mem_free(DRM_IOCTL_ARGS)
+int radeon_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv)
 {
-        DRM_DEVICE;
         drm_radeon_private_t *dev_priv = dev->dev_private;
-        drm_radeon_mem_free_t memfree;
+        drm_radeon_mem_free_t *memfree = data;
         struct mem_block *block, **heap;
 
         if (!dev_priv) {
@@ -267,14 +263,11 @@ int radeon_mem_free(DRM_IOCTL_ARGS)
                 return -EINVAL;
         }
 
-        DRM_COPY_FROM_USER_IOCTL(memfree, (drm_radeon_mem_free_t __user *) data,
-                                 sizeof(memfree));
-
-        heap = get_heap(dev_priv, memfree.region);
+        heap = get_heap(dev_priv, memfree->region);
         if (!heap || !*heap)
                 return -EFAULT;
 
-        block = find_block(*heap, memfree.region_offset);
+        block = find_block(*heap, memfree->region_offset);
         if (!block)
                 return -EFAULT;
 
@@ -285,11 +278,10 @@ int radeon_mem_free(DRM_IOCTL_ARGS)
         return 0;
 }
 
-int radeon_mem_init_heap(DRM_IOCTL_ARGS)
+int radeon_mem_init_heap(struct drm_device *dev, void *data, struct drm_file *file_priv)
 {
-        DRM_DEVICE;
         drm_radeon_private_t *dev_priv = dev->dev_private;
-        drm_radeon_mem_init_heap_t initheap;
+        drm_radeon_mem_init_heap_t *initheap = data;
         struct mem_block **heap;
 
         if (!dev_priv) {
@@ -297,11 +289,7 @@ int radeon_mem_init_heap(DRM_IOCTL_ARGS)
                 return -EINVAL;
         }
 
-        DRM_COPY_FROM_USER_IOCTL(initheap,
-                                 (drm_radeon_mem_init_heap_t __user *) data,
-                                 sizeof(initheap));
-
-        heap = get_heap(dev_priv, initheap.region);
+        heap = get_heap(dev_priv, initheap->region);
         if (!heap)
                 return -EFAULT;
 
@@ -310,5 +298,5 @@ int radeon_mem_init_heap(DRM_IOCTL_ARGS)
                 return -EFAULT;
         }
 
-        return init_heap(heap, initheap.start, initheap.size);
+        return init_heap(heap, initheap->start, initheap->size);
 }