vserver 1.9.5.x5
[linux-2.6.git] / drivers / video / fbmem.c
index ef5cea5..92f4a97 100644 (file)
@@ -35,6 +35,7 @@
 #include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/device.h>
+#include <linux/efi.h>
 
 #if defined(__mc68000__) || defined(CONFIG_APUS)
 #include <asm/setup.h>
@@ -51,7 +52,7 @@
      *  Frame buffer device initialization and setup routines
      */
 
-#define FBPIXMAPSIZE   16384
+#define FBPIXMAPSIZE   (1024 * 8)
 
 static struct notifier_block *fb_notifier_list;
 struct fb_info *registered_fb[FB_MAX];
@@ -368,6 +369,9 @@ int fb_prepare_logo(struct fb_info *info)
 
        memset(&fb_logo, 0, sizeof(struct logo_data));
 
+       if (info->flags & FBINFO_MISC_TILEBLITTING)
+               return 0;
+
        if (info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
                depth = info->var.blue.length;
                if (info->var.red.length < depth)
@@ -504,7 +508,8 @@ fb_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
        struct inode *inode = file->f_dentry->d_inode;
        int fbidx = iminor(inode);
        struct fb_info *info = registered_fb[fbidx];
-       u32 *buffer, *dst, *src;
+       u32 *buffer, *dst;
+       u32 __iomem *src;
        int c, i, cnt = 0, err = 0;
        unsigned long total_size;
 
@@ -534,7 +539,7 @@ fb_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
        if (!buffer)
                return -ENOMEM;
 
-       src = (u32 *) (info->screen_base + p);
+       src = (u32 __iomem *) (info->screen_base + p);
 
        if (info->fbops->fb_sync)
                info->fbops->fb_sync(info);
@@ -546,12 +551,12 @@ fb_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
                        *dst++ = fb_readl(src++);
                if (c & 3) {
                        u8 *dst8 = (u8 *) dst;
-                       u8 *src8 = (u8 *) src;
+                       u8 __iomem *src8 = (u8 __iomem *) src;
 
                        for (i = c & 3; i--;)
                                *dst8++ = fb_readb(src8++);
 
-                       src = (u32 *) src8;
+                       src = (u32 __iomem *) src8;
                }
 
                if (copy_to_user(buf, buffer, c)) {
@@ -575,7 +580,8 @@ fb_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
        struct inode *inode = file->f_dentry->d_inode;
        int fbidx = iminor(inode);
        struct fb_info *info = registered_fb[fbidx];
-       u32 *buffer, *dst, *src;
+       u32 *buffer, *src;
+       u32 __iomem *dst;
        int c, i, cnt = 0, err;
        unsigned long total_size;
 
@@ -607,7 +613,7 @@ fb_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
        if (!buffer)
                return -ENOMEM;
 
-       dst = (u32 *) (info->screen_base + p);
+       dst = (u32 __iomem *) (info->screen_base + p);
 
        if (info->fbops->fb_sync)
                info->fbops->fb_sync(info);
@@ -623,12 +629,12 @@ fb_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
                        fb_writel(*src++, dst++);
                if (c & 3) {
                        u8 *src8 = (u8 *) src;
-                       u8 *dst8 = (u8 *) dst;
+                       u8 __iomem *dst8 = (u8 __iomem *) dst;
 
                        for (i = c & 3; i--; )
                                fb_writeb(*src8++, dst8++);
 
-                       dst = (u32 *) dst8;
+                       dst = (u32 __iomem *) dst8;
                }
                *ppos += c;
                buf += c;
@@ -647,114 +653,6 @@ static void try_to_load(int fb)
 }
 #endif /* CONFIG_KMOD */
 
-void
-fb_load_cursor_image(struct fb_info *info)
-{
-       unsigned int width = (info->cursor.image.width + 7) >> 3;
-       u8 *data = (u8 *) info->cursor.image.data;
-
-       if (info->sprite.outbuf)
-           info->sprite.outbuf(info, info->sprite.addr, data, width);
-       else
-           memcpy(info->sprite.addr, data, width);
-}
-
-int
-fb_cursor(struct fb_info *info, struct fb_cursor_user __user *sprite)
-{
-       struct fb_cursor_user cursor_user;
-       struct fb_cursor cursor;
-       char *data = NULL, *mask = NULL, *info_mask = NULL;
-       u16 *red = NULL, *green = NULL, *blue = NULL, *transp = NULL;
-       int err = -EINVAL;
-       
-       if (copy_from_user(&cursor_user, sprite, sizeof(struct fb_cursor_user)))
-               return -EFAULT;
-
-       memcpy(&cursor, &cursor_user, sizeof(cursor_user));
-       cursor.mask = info->cursor.mask;
-       cursor.image.data = info->cursor.image.data;
-       cursor.image.cmap.red = info->cursor.image.cmap.red;
-       cursor.image.cmap.green = info->cursor.image.cmap.green;
-       cursor.image.cmap.blue = info->cursor.image.cmap.blue;
-       cursor.image.cmap.transp = info->cursor.image.cmap.transp;
-       cursor.data = NULL;
-
-       if (cursor.set & FB_CUR_SETCUR)
-               info->cursor.enable = 1;
-       
-       if (cursor.set & FB_CUR_SETCMAP) {
-               unsigned len = cursor.image.cmap.len;
-               if ((int)len <= 0)
-                       goto out;
-               len *= 2;
-               err = -ENOMEM;
-               red = kmalloc(len, GFP_USER);
-               green = kmalloc(len, GFP_USER);
-               blue = kmalloc(len, GFP_USER);
-               if (!red || !green || !blue)
-                       goto out;
-               if (cursor_user.image.cmap.transp) {
-                       transp = kmalloc(len, GFP_USER);
-                       if (!transp)
-                               goto out;
-               }
-               err = -EFAULT;
-               if (copy_from_user(red, cursor_user.image.cmap.red, len))
-                       goto out;
-               if (copy_from_user(green, cursor_user.image.cmap.green, len))
-                       goto out;
-               if (copy_from_user(blue, cursor_user.image.cmap.blue, len))
-                       goto out;
-               if (transp) {
-                       if (copy_from_user(transp,
-                                          cursor_user.image.cmap.transp, len))
-                               goto out;
-               }
-               cursor.image.cmap.red = red;
-               cursor.image.cmap.green = green;
-               cursor.image.cmap.blue = blue;
-               cursor.image.cmap.transp = transp;
-       }
-       
-       if (cursor.set & FB_CUR_SETSHAPE) {
-               int size = ((cursor.image.width + 7) >> 3) * cursor.image.height;               
-
-               if ((cursor.image.height != info->cursor.image.height) ||
-                   (cursor.image.width != info->cursor.image.width))
-                       cursor.set |= FB_CUR_SETSIZE;
-               
-               err = -ENOMEM;
-               data = kmalloc(size, GFP_USER);
-               mask = kmalloc(size, GFP_USER);
-               if (!mask || !data)
-                       goto out;
-               
-               err = -EFAULT;
-               if (copy_from_user(data, cursor_user.image.data, size) ||
-                   copy_from_user(mask, cursor_user.mask, size))
-                       goto out;
-               
-               cursor.image.data = data;
-               cursor.mask = mask;
-               info_mask = (char *) info->cursor.mask;
-               info->cursor.mask = mask;
-       }
-       info->cursor.set = cursor.set;
-       info->cursor.rop = cursor.rop;
-       err = info->fbops->fb_cursor(info, &cursor);
-out:
-       kfree(data);
-       kfree(mask);
-       kfree(red);
-       kfree(green);
-       kfree(blue);
-       kfree(transp);
-       if (info_mask)
-               info->cursor.mask = info_mask;
-       return err;
-}
-
 int
 fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var)
 {
@@ -818,8 +716,9 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var)
 
                if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) {
                        struct fb_videomode mode;
-                       info->var = *var;
+                       int err = 0;
 
+                       info->var = *var;
                        if (info->fbops->fb_set_par)
                                info->fbops->fb_set_par(info);
 
@@ -828,15 +727,19 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var)
                        fb_set_cmap(&info->cmap, info);
 
                        fb_var_to_videomode(&mode, &info->var);
-                       fb_add_videomode(&mode, &info->modelist);
 
-                       if (info->flags & FBINFO_MISC_MODECHANGEUSER) {
+                       if (info->modelist.prev && info->modelist.next &&
+                           !list_empty(&info->modelist))
+                               err = fb_add_videomode(&mode, &info->modelist);
+
+                       if (!err && info->flags & FBINFO_MISC_USEREVENT) {
                                struct fb_event event;
 
-                               info->flags &= ~FBINFO_MISC_MODECHANGEUSER;
+                               info->flags &= ~FBINFO_MISC_USEREVENT;
                                event.info = info;
                                notifier_call_chain(&fb_notifier_list,
-                                                   FB_EVENT_MODE_CHANGE, &event);
+                                                   FB_EVENT_MODE_CHANGE,
+                                                   &event);
                        }
                }
        }
@@ -846,21 +749,23 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var)
 int
 fb_blank(struct fb_info *info, int blank)
 {      
-       /* ??? Variable sized stack allocation.  */
-       u16 black[info->cmap.len];
-       struct fb_cmap cmap;
-       
-       if (info->fbops->fb_blank && !info->fbops->fb_blank(blank, info))
-               return 0;
-       if (blank) { 
-               memset(black, 0, info->cmap.len * sizeof(u16));
-               cmap.red = cmap.green = cmap.blue = black;
-               cmap.transp = info->cmap.transp ? black : NULL;
-               cmap.start = info->cmap.start;
-               cmap.len = info->cmap.len;
-       } else
-               cmap = info->cmap;
-       return fb_set_cmap(&cmap, info);
+       int ret = -EINVAL;
+
+       if (blank > FB_BLANK_POWERDOWN)
+               blank = FB_BLANK_POWERDOWN;
+
+       if (info->fbops->fb_blank)
+               ret = info->fbops->fb_blank(blank, info);
+
+       if (!ret) {
+               struct fb_event event;
+
+               event.info = info;
+               event.data = &blank;
+               notifier_call_chain(&fb_notifier_list, FB_EVENT_BLANK, &event);
+       }
+
+       return ret;
 }
 
 static int 
@@ -888,9 +793,9 @@ fb_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
                if (copy_from_user(&var, argp, sizeof(var)))
                        return -EFAULT;
                acquire_console_sem();
-               info->flags |= FBINFO_MISC_MODECHANGEUSER;
+               info->flags |= FBINFO_MISC_USEREVENT;
                i = fb_set_var(info, &var);
-               info->flags &= ~FBINFO_MISC_MODECHANGEUSER;
+               info->flags &= ~FBINFO_MISC_USEREVENT;
                release_console_sem();
                if (i) return i;
                if (copy_to_user(argp, &var, sizeof(var)))
@@ -919,10 +824,7 @@ fb_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
                        return -EFAULT;
                return 0;
        case FBIO_CURSOR:
-               acquire_console_sem();
-               i = fb_cursor(info, argp);
-               release_console_sem();
-               return i;
+               return -EINVAL;
        case FBIOGET_CON2FBMAP:
                if (copy_from_user(&con2fb, argp, sizeof(con2fb)))
                        return -EFAULT;
@@ -948,17 +850,16 @@ fb_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
 #endif /* CONFIG_KMOD */
                if (!registered_fb[con2fb.framebuffer])
                    return -EINVAL;
-               if (con2fb.console > 0 && con2fb.console < MAX_NR_CONSOLES) {
-                       event.info = info;
-                       event.data = &con2fb;
-                       return notifier_call_chain(&fb_notifier_list,
-                                                  FB_EVENT_SET_CONSOLE_MAP,
-                                                  &event);
-               }
-               return -EINVAL;
+               event.info = info;
+               event.data = &con2fb;
+               return notifier_call_chain(&fb_notifier_list,
+                                          FB_EVENT_SET_CONSOLE_MAP,
+                                          &event);
        case FBIOBLANK:
                acquire_console_sem();
+               info->flags |= FBINFO_MISC_USEREVENT;
                i = fb_blank(info, arg);
+               info->flags &= ~FBINFO_MISC_USEREVENT;
                release_console_sem();
                return i;
        default:
@@ -968,6 +869,23 @@ fb_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
        }
 }
 
+#ifdef CONFIG_COMPAT
+static long
+fb_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+       int fbidx = iminor(file->f_dentry->d_inode);
+       struct fb_info *info = registered_fb[fbidx];
+       struct fb_ops *fb = info->fbops;
+       int ret;
+       if (fb->fb_compat_ioctl == NULL)
+               return -ENOIOCTLCMD;
+       lock_kernel();
+       ret = fb->fb_compat_ioctl(file, cmd, arg, info);
+       unlock_kernel();
+       return ret;
+}
+#endif
+
 static int 
 fb_mmap(struct file *file, struct vm_area_struct * vma)
 {
@@ -1021,9 +939,8 @@ fb_mmap(struct file *file, struct vm_area_struct * vma)
        off += start;
        vma->vm_pgoff = off >> PAGE_SHIFT;
        /* This is an IO map - tell maydump to skip this VMA */
-       vma->vm_flags |= VM_IO;
+       vma->vm_flags |= VM_IO | VM_RESERVED;
 #if defined(__sparc_v9__)
-       vma->vm_flags |= (VM_SHM | VM_LOCKED);
        if (io_remap_page_range(vma, vma->vm_start, off,
                                vma->vm_end - vma->vm_start, vma->vm_page_prot, 0))
                return -EAGAIN;
@@ -1051,8 +968,13 @@ fb_mmap(struct file *file, struct vm_area_struct * vma)
        vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 #elif defined(__hppa__)
        pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
-#elif defined(__ia64__) || defined(__arm__) || defined(__sh__)
+#elif defined(__arm__) || defined(__sh__) || defined(__m32r__)
        vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+#elif defined(__ia64__)
+       if (efi_range_is_wc(vma->vm_start, vma->vm_end - vma->vm_start))
+               vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+       else
+               vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 #else
 #warning What do we have to do here??
 #endif
@@ -1109,6 +1031,9 @@ static struct file_operations fb_fops = {
        .read =         fb_read,
        .write =        fb_write,
        .ioctl =        fb_ioctl,
+#ifdef CONFIG_COMPAT
+       .compat_ioctl = fb_compat_ioctl,
+#endif
        .mmap =         fb_mmap,
        .open =         fb_open,
        .release =      fb_release,
@@ -1144,7 +1069,8 @@ register_framebuffer(struct fb_info *fb_info)
                        break;
        fb_info->node = i;
 
-       c = class_simple_device_add(fb_class, MKDEV(FB_MAJOR, i), NULL, "fb%d", i);
+       c = class_simple_device_add(fb_class, MKDEV(FB_MAJOR, i),
+                                   fb_info->device, "fb%d", i);
        if (IS_ERR(c)) {
                /* Not fatal */
                printk(KERN_WARNING "Unable to create class_device for framebuffer %d; errno = %ld\n", i, PTR_ERR(c));
@@ -1162,18 +1088,6 @@ register_framebuffer(struct fb_info *fb_info)
        }       
        fb_info->pixmap.offset = 0;
 
-       if (fb_info->sprite.addr == NULL) {
-               fb_info->sprite.addr = kmalloc(FBPIXMAPSIZE, GFP_KERNEL);
-               if (fb_info->sprite.addr) {
-                       fb_info->sprite.size = FBPIXMAPSIZE;
-                       fb_info->sprite.buf_align = 1;
-                       fb_info->sprite.scan_align = 1;
-                       fb_info->sprite.access_align = 4;
-                       fb_info->sprite.flags = FB_PIXMAP_DEFAULT;
-               }
-       }
-       fb_info->sprite.offset = 0;
-
        if (!fb_info->modelist.prev ||
            !fb_info->modelist.next ||
            list_empty(&fb_info->modelist)) {
@@ -1217,8 +1131,6 @@ unregister_framebuffer(struct fb_info *fb_info)
 
        if (fb_info->pixmap.addr && (fb_info->pixmap.flags & FB_PIXMAP_DEFAULT))
                kfree(fb_info->pixmap.addr);
-       if (fb_info->sprite.addr && (fb_info->sprite.flags & FB_PIXMAP_DEFAULT))
-               kfree(fb_info->sprite.addr);
        fb_destroy_modelist(&fb_info->modelist);
        registered_fb[i]=NULL;
        num_registered_fb--;
@@ -1292,10 +1204,9 @@ fbmem_init(void)
        }
        return 0;
 }
-module_init(fbmem_init);
+subsys_initcall(fbmem_init);
 
-#define NR_FB_DRIVERS 64
-static char *video_options[NR_FB_DRIVERS];
+static char *video_options[FB_MAX];
 static int ofonly;
 
 /**
@@ -1316,7 +1227,7 @@ int fb_get_options(char *name, char **option)
                retval = 1;
 
        if (name_len && !retval) {
-               for (i = 0; i < NR_FB_DRIVERS; i++) {
+               for (i = 0; i < FB_MAX; i++) {
                        if (video_options[i] == NULL)
                                continue;
                        opt_len = strlen(video_options[i]);
@@ -1351,19 +1262,32 @@ int fb_get_options(char *name, char **option)
  *
  */
 
+extern const char *global_mode_option;
+
 int __init video_setup(char *options)
 {
-       int i;
+       int i, global = 0;
 
        if (!options || !*options)
-               return 0;
+               global = 1;
+
+       if (!global && !strncmp(options, "ofonly", 6)) {
+               ofonly = 1;
+               global = 1;
+       }
+
+       if (!global && !strstr(options, "fb:")) {
+               global_mode_option = options;
+               global = 1;
+       }
+
+       if (!global) {
+               for (i = 0; i < FB_MAX; i++) {
+                       if (video_options[i] == NULL) {
+                               video_options[i] = options;
+                               break;
+                       }
 
-       for (i = 0; i < NR_FB_DRIVERS; i++) {
-               if (!strncmp(options, "ofonly", 6))
-                       ofonly = 1;
-               if (video_options[i] == NULL) {
-                       video_options[i] = options;
-                       break;
                }
        }
 
@@ -1389,7 +1313,6 @@ EXPORT_SYMBOL(fb_iomove_buf_unaligned);
 EXPORT_SYMBOL(fb_iomove_buf_aligned);
 EXPORT_SYMBOL(fb_sysmove_buf_unaligned);
 EXPORT_SYMBOL(fb_sysmove_buf_aligned);
-EXPORT_SYMBOL(fb_load_cursor_image);
 EXPORT_SYMBOL(fb_set_suspend);
 EXPORT_SYMBOL(fb_register_client);
 EXPORT_SYMBOL(fb_unregister_client);