X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fvideo%2Fsbuslib.c;h=34ef859ee41440ec80492e70038307f7e08cc8c1;hb=refs%2Fheads%2Fvserver;hp=70e875aaa2f5645ae8eb67756410f500c83b8dd2;hpb=6a77f38946aaee1cd85eeec6cf4229b204c15071;p=linux-2.6.git

diff --git a/drivers/video/sbuslib.c b/drivers/video/sbuslib.c
index 70e875aaa..34ef859ee 100644
--- a/drivers/video/sbuslib.c
+++ b/drivers/video/sbuslib.c
@@ -3,6 +3,7 @@
  * Copyright (C) 2003 David S. Miller (davem@redhat.com)
  */
 
+#include <linux/compat.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/string.h>
@@ -45,6 +46,9 @@ int sbusfb_mmap_helper(struct sbus_mmap_map *map,
 	unsigned long off;
 	int i;
                                         
+	if (!(vma->vm_flags & (VM_SHARED | VM_MAYSHARE)))
+		return -EINVAL;
+
 	size = vma->vm_end - vma->vm_start;
 	if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT))
 		return -EINVAL;
@@ -54,6 +58,8 @@ int sbusfb_mmap_helper(struct sbus_mmap_map *map,
 	/* To stop the swapper from even considering these pages */
 	vma->vm_flags |= (VM_IO | VM_RESERVED);
 	
+	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+
 	/* Each page, see which map applies */
 	for (page = 0; page < size; ){
 		map_size = 0;
@@ -74,10 +80,12 @@ int sbusfb_mmap_helper(struct sbus_mmap_map *map,
 		}
 		if (page + map_size > size)
 			map_size = size - page;
-		r = io_remap_page_range(vma,
+		r = io_remap_pfn_range(vma,
 					vma->vm_start + page,
-					map_offset, map_size,
-					vma->vm_page_prot, iospace);
+					MK_IOSPACE_PFN(iospace,
+						map_offset >> PAGE_SHIFT),
+					map_size,
+					vma->vm_page_prot);
 		if (r)
 			return -EAGAIN;
 		page += map_size;
@@ -180,3 +188,104 @@ int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg,
 	};
 }
 EXPORT_SYMBOL(sbusfb_ioctl_helper);
+
+#ifdef CONFIG_COMPAT
+struct  fbcmap32 {
+	int             index;          /* first element (0 origin) */
+	int             count;
+	u32		red;
+	u32		green;
+	u32		blue;
+};
+
+#define FBIOPUTCMAP32	_IOW('F', 3, struct fbcmap32)
+#define FBIOGETCMAP32	_IOW('F', 4, struct fbcmap32)
+
+static int fbiogetputcmap(struct fb_info *info, unsigned int cmd, unsigned long arg)
+{
+	struct fbcmap32 __user *argp = (void __user *)arg;
+	struct fbcmap __user *p = compat_alloc_user_space(sizeof(*p));
+	u32 addr;
+	int ret;
+
+	ret = copy_in_user(p, argp, 2 * sizeof(int));
+	ret |= get_user(addr, &argp->red);
+	ret |= put_user(compat_ptr(addr), &p->red);
+	ret |= get_user(addr, &argp->green);
+	ret |= put_user(compat_ptr(addr), &p->green);
+	ret |= get_user(addr, &argp->blue);
+	ret |= put_user(compat_ptr(addr), &p->blue);
+	if (ret)
+		return -EFAULT;
+	return info->fbops->fb_ioctl(info,
+			(cmd == FBIOPUTCMAP32) ?
+			FBIOPUTCMAP_SPARC : FBIOGETCMAP_SPARC,
+			(unsigned long)p);
+}
+
+struct fbcursor32 {
+	short set;		/* what to set, choose from the list above */
+	short enable;		/* cursor on/off */
+	struct fbcurpos pos;	/* cursor position */
+	struct fbcurpos hot;	/* cursor hot spot */
+	struct fbcmap32 cmap;	/* color map info */
+	struct fbcurpos size;	/* cursor bit map size */
+	u32	image;		/* cursor image bits */
+	u32	mask;		/* cursor mask bits */
+};
+
+#define FBIOSCURSOR32	_IOW('F', 24, struct fbcursor32)
+#define FBIOGCURSOR32	_IOW('F', 25, struct fbcursor32)
+
+static int fbiogscursor(struct fb_info *info, unsigned long arg)
+{
+	struct fbcursor __user *p = compat_alloc_user_space(sizeof(*p));
+	struct fbcursor32 __user *argp =  (void __user *)arg;
+	compat_uptr_t addr;
+	int ret;
+
+	ret = copy_in_user(p, argp,
+			      2 * sizeof (short) + 2 * sizeof(struct fbcurpos));
+	ret |= copy_in_user(&p->size, &argp->size, sizeof(struct fbcurpos));
+	ret |= copy_in_user(&p->cmap, &argp->cmap, 2 * sizeof(int));
+	ret |= get_user(addr, &argp->cmap.red);
+	ret |= put_user(compat_ptr(addr), &p->cmap.red);
+	ret |= get_user(addr, &argp->cmap.green);
+	ret |= put_user(compat_ptr(addr), &p->cmap.green);
+	ret |= get_user(addr, &argp->cmap.blue);
+	ret |= put_user(compat_ptr(addr), &p->cmap.blue);
+	ret |= get_user(addr, &argp->mask);
+	ret |= put_user(compat_ptr(addr), &p->mask);
+	ret |= get_user(addr, &argp->image);
+	ret |= put_user(compat_ptr(addr), &p->image);
+	if (ret)
+		return -EFAULT;
+	return info->fbops->fb_ioctl(info, FBIOSCURSOR, (unsigned long)p);
+}
+
+int sbusfb_compat_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
+{
+	switch (cmd) {
+	case FBIOGTYPE:
+	case FBIOSATTR:
+	case FBIOGATTR:
+	case FBIOSVIDEO:
+	case FBIOGVIDEO:
+	case FBIOGCURSOR32:	/* This is not implemented yet.
+				   Later it should be converted... */
+	case FBIOSCURPOS:
+	case FBIOGCURPOS:
+	case FBIOGCURMAX:
+		return info->fbops->fb_ioctl(info, cmd, arg);
+	case FBIOPUTCMAP32:
+		return fbiogetputcmap(info, cmd, arg);
+	case FBIOGETCMAP32:
+		return fbiogetputcmap(info, cmd, arg);
+	case FBIOSCURSOR32:
+		return fbiogscursor(info, arg);
+	default:
+		return -ENOIOCTLCMD;
+	}
+}
+EXPORT_SYMBOL(sbusfb_compat_ioctl);
+#endif