Merge commit '900cfa46191a7d87cf1891924cb90499287fd235'; branches 'timers/nohz',...

[cascardo/linux.git] / drivers / char / drm / radeon_ioc32.c

diff --git a/drivers/char/drm/radeon_ioc32.c b/drivers/char/drm/radeon_ioc32.c
index 0ccfd36..56decda 100644 (file)
--- a/drivers/char/drm/radeon_ioc32.c
+++ b/drivers/char/drm/radeon_ioc32.c
@@ -92,7 +92,7 @@ static int compat_radeon_cp_init(struct file *file, unsigned int cmd,
                          &init->gart_textures_offset))
                return -EFAULT;
 
-       return drm_ioctl(file->f_dentry->d_inode, file,
+       return drm_ioctl(file->f_path.dentry->d_inode, file,
                         DRM_IOCTL_RADEON_CP_INIT, (unsigned long)init);
 }
 
@@ -125,7 +125,7 @@ static int compat_radeon_cp_clear(struct file *file, unsigned int cmd,
                          &clr->depth_boxes))
                return -EFAULT;
 
-       return drm_ioctl(file->f_dentry->d_inode, file,
+       return drm_ioctl(file->f_path.dentry->d_inode, file,
                         DRM_IOCTL_RADEON_CLEAR, (unsigned long)clr);
 }
 
@@ -149,7 +149,7 @@ static int compat_radeon_cp_stipple(struct file *file, unsigned int cmd,
                          &request->mask))
                return -EFAULT;
 
-       return drm_ioctl(file->f_dentry->d_inode, file,
+       return drm_ioctl(file->f_path.dentry->d_inode, file,
                         DRM_IOCTL_RADEON_STIPPLE, (unsigned long)request);
 }
 
@@ -204,7 +204,7 @@ static int compat_radeon_cp_texture(struct file *file, unsigned int cmd,
                          &image->data))
                return -EFAULT;
 
-       return drm_ioctl(file->f_dentry->d_inode, file,
+       return drm_ioctl(file->f_path.dentry->d_inode, file,
                         DRM_IOCTL_RADEON_TEXTURE, (unsigned long)request);
 }
 
@@ -238,7 +238,7 @@ static int compat_radeon_cp_vertex2(struct file *file, unsigned int cmd,
                          &request->prim))
                return -EFAULT;
 
-       return drm_ioctl(file->f_dentry->d_inode, file,
+       return drm_ioctl(file->f_path.dentry->d_inode, file,
                         DRM_IOCTL_RADEON_VERTEX2, (unsigned long)request);
 }
 
@@ -268,7 +268,7 @@ static int compat_radeon_cp_cmdbuf(struct file *file, unsigned int cmd,
                          &request->boxes))
                return -EFAULT;
 
-       return drm_ioctl(file->f_dentry->d_inode, file,
+       return drm_ioctl(file->f_path.dentry->d_inode, file,
                         DRM_IOCTL_RADEON_CMDBUF, (unsigned long)request);
 }
 
@@ -293,7 +293,7 @@ static int compat_radeon_cp_getparam(struct file *file, unsigned int cmd,
                          &request->value))
                return -EFAULT;
 
-       return drm_ioctl(file->f_dentry->d_inode, file,
+       return drm_ioctl(file->f_path.dentry->d_inode, file,
                         DRM_IOCTL_RADEON_GETPARAM, (unsigned long)request);
 }
 
@@ -322,7 +322,7 @@ static int compat_radeon_mem_alloc(struct file *file, unsigned int cmd,
                          &request->region_offset))
                return -EFAULT;
 
-       return drm_ioctl(file->f_dentry->d_inode, file,
+       return drm_ioctl(file->f_path.dentry->d_inode, file,
                         DRM_IOCTL_RADEON_ALLOC, (unsigned long)request);
 }
 
@@ -345,10 +345,40 @@ static int compat_radeon_irq_emit(struct file *file, unsigned int cmd,
                          &request->irq_seq))
                return -EFAULT;
 
-       return drm_ioctl(file->f_dentry->d_inode, file,
+       return drm_ioctl(file->f_path.dentry->d_inode, file,
                         DRM_IOCTL_RADEON_IRQ_EMIT, (unsigned long)request);
 }
 
+/* The two 64-bit arches where alignof(u64)==4 in 32-bit code */
+#if defined (CONFIG_X86_64) || defined(CONFIG_IA64)
+typedef struct drm_radeon_setparam32 {
+       int param;
+       u64 value;
+} __attribute__((packed)) drm_radeon_setparam32_t;
+
+static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd,
+                                    unsigned long arg)
+{
+       drm_radeon_setparam32_t req32;
+       drm_radeon_setparam_t __user *request;
+
+       if (copy_from_user(&req32, (void __user *) arg, sizeof(req32)))
+               return -EFAULT;
+
+       request = compat_alloc_user_space(sizeof(*request));
+       if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
+           || __put_user(req32.param, &request->param)
+           || __put_user((void __user *)(unsigned long)req32.value,
+                         &request->value))
+               return -EFAULT;
+
+       return drm_ioctl(file->f_dentry->d_inode, file,
+                        DRM_IOCTL_RADEON_SETPARAM, (unsigned long) request);
+}
+#else
+#define compat_radeon_cp_setparam NULL
+#endif /* X86_64 || IA64 */
+
 drm_ioctl_compat_t *radeon_compat_ioctls[] = {
        [DRM_RADEON_CP_INIT] = compat_radeon_cp_init,
        [DRM_RADEON_CLEAR] = compat_radeon_cp_clear,
@@ -357,6 +387,7 @@ drm_ioctl_compat_t *radeon_compat_ioctls[] = {
        [DRM_RADEON_VERTEX2] = compat_radeon_cp_vertex2,
        [DRM_RADEON_CMDBUF] = compat_radeon_cp_cmdbuf,
        [DRM_RADEON_GETPARAM] = compat_radeon_cp_getparam,
+       [DRM_RADEON_SETPARAM] = compat_radeon_cp_setparam,
        [DRM_RADEON_ALLOC] = compat_radeon_mem_alloc,
        [DRM_RADEON_IRQ_EMIT] = compat_radeon_irq_emit,
 };
@@ -386,7 +417,7 @@ long radeon_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
        if (fn != NULL)
                ret = (*fn) (filp, cmd, arg);
        else
-               ret = drm_ioctl(filp->f_dentry->d_inode, filp, cmd, arg);
+               ret = drm_ioctl(filp->f_path.dentry->d_inode, filp, cmd, arg);
        unlock_kernel();
 
        return ret;