* 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>
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;
off = vma->vm_pgoff << PAGE_SHIFT;
/* To stop the swapper from even considering these pages */
- vma->vm_flags |= (VM_SHM | VM_IO | VM_LOCKED);
+ 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;
}
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;
{
switch(cmd) {
case FBIOGTYPE: {
- struct fbtype *f = (struct fbtype *) arg;
+ struct fbtype __user *f = (struct fbtype __user *) arg;
if (put_user(type, &f->fb_type) ||
__put_user(info->var.yres, &f->fb_height) ||
return 0;
}
case FBIOPUTCMAP_SPARC: {
- struct fbcmap *c = (struct fbcmap *) arg;
+ struct fbcmap __user *c = (struct fbcmap __user *) arg;
struct fb_cmap cmap;
u16 red, green, blue;
- unsigned char *ured, *ugreen, *ublue;
+ u8 red8, green8, blue8;
+ unsigned char __user *ured;
+ unsigned char __user *ugreen;
+ unsigned char __user *ublue;
int index, count, i;
if (get_user(index, &c->index) ||
cmap.red = &red;
cmap.green = &green;
cmap.blue = &blue;
+ cmap.transp = NULL;
for (i = 0; i < count; i++) {
int err;
- if (get_user(red, &ured[i]) ||
- get_user(green, &ugreen[i]) ||
- get_user(blue, &ublue[i]))
+ if (get_user(red8, &ured[i]) ||
+ get_user(green8, &ugreen[i]) ||
+ get_user(blue8, &ublue[i]))
return -EFAULT;
+ red = red8 << 8;
+ green = green8 << 8;
+ blue = blue8 << 8;
+
cmap.start = index + i;
- err = fb_set_cmap(&cmap, 0, info);
+ err = fb_set_cmap(&cmap, info);
if (err)
return err;
}
return 0;
}
case FBIOGETCMAP_SPARC: {
- struct fbcmap *c = (struct fbcmap *) arg;
- unsigned char *ured, *ugreen, *ublue;
+ struct fbcmap __user *c = (struct fbcmap __user *) arg;
+ unsigned char __user *ured;
+ unsigned char __user *ugreen;
+ unsigned char __user *ublue;
struct fb_cmap *cmap = &info->cmap;
int index, count, i;
+ u8 red, green, blue;
if (get_user(index, &c->index) ||
__get_user(count, &c->count) ||
return -EINVAL;
for (i = 0; i < count; i++) {
- if (put_user(cmap->red[index + i], &ured[i]) ||
- put_user(cmap->green[index + i], &ugreen[i]) ||
- put_user(cmap->blue[index + i], &ublue[i]))
+ red = cmap->red[index + i] >> 8;
+ green = cmap->green[index + i] >> 8;
+ blue = cmap->blue[index + i] >> 8;
+ if (put_user(red, &ured[i]) ||
+ put_user(green, &ugreen[i]) ||
+ put_user(blue, &ublue[i]))
return -EFAULT;
}
return 0;
};
}
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
git://git.onelab.eu / linux-2.6.git / blobdiff