CRED: Wrap task credential accesses in the JFS filesystem

[linux-2.6.git] / drivers / video / leo.c

diff --git a/drivers/video/leo.c b/drivers/video/leo.c
index 465459e5eae656085876e3532c91b167d812d14d..7c7e8c2da9d911081f68d3b94d46f2effd69e496 100644 (file)
--- a/drivers/video/leo.c
+++ b/drivers/video/leo.c
@@ -33,6 +33,7 @@ static int leo_blank(int, struct fb_info *);
 
 static int leo_mmap(struct fb_info *, struct vm_area_struct *);
 static int leo_ioctl(struct fb_info *, unsigned int, unsigned long);
+static int leo_pan_display(struct fb_var_screeninfo *, struct fb_info *);
 
 /*
  *  Frame buffer operations
@@ -42,6 +43,7 @@ static struct fb_ops leo_ops = {
        .owner                  = THIS_MODULE,
        .fb_setcolreg           = leo_setcolreg,
        .fb_blank               = leo_blank,
+       .fb_pan_display         = leo_pan_display,
        .fb_fillrect            = cfb_fillrect,
        .fb_copyarea            = cfb_copyarea,
        .fb_imageblit           = cfb_imageblit,
@@ -206,6 +208,60 @@ static void leo_wait(struct leo_lx_krn __iomem *lx_krn)
        return;
 }
 
+static void leo_switch_from_graph(struct fb_info *info)
+{
+       struct leo_par *par = (struct leo_par *) info->par;
+       struct leo_ld_ss0 __iomem *ss = par->ld_ss0;
+       struct leo_cursor __iomem *cursor = par->cursor;
+       unsigned long flags;
+       u32 val;
+
+       spin_lock_irqsave(&par->lock, flags);
+
+       par->extent = ((info->var.xres - 1) |
+                      ((info->var.yres - 1) << 16));
+
+       sbus_writel(0xffffffff, &ss->wid);
+       sbus_writel(0xffff, &ss->wmask);
+       sbus_writel(0, &ss->vclipmin);
+       sbus_writel(par->extent, &ss->vclipmax);
+       sbus_writel(0, &ss->fg);
+       sbus_writel(0xff000000, &ss->planemask);
+       sbus_writel(0x310850, &ss->rop);
+       sbus_writel(0, &ss->widclip);
+       sbus_writel((info->var.xres-1) | ((info->var.yres-1) << 11),
+                   &par->lc_ss0_usr->extent);
+       sbus_writel(4, &par->lc_ss0_usr->addrspace);
+       sbus_writel(0x80000000, &par->lc_ss0_usr->fill);
+       sbus_writel(0, &par->lc_ss0_usr->fontt);
+       do {
+               val = sbus_readl(&par->lc_ss0_usr->csr);
+       } while (val & 0x20000000);
+
+       /* setup screen buffer for cfb_* functions */
+       sbus_writel(1, &ss->wid);
+       sbus_writel(0x00ffffff, &ss->planemask);
+       sbus_writel(0x310b90, &ss->rop);
+       sbus_writel(0, &par->lc_ss0_usr->addrspace);
+
+       /* hide cursor */
+       sbus_writel(sbus_readl(&cursor->cur_misc) & ~LEO_CUR_ENABLE, &cursor->cur_misc);
+
+       spin_unlock_irqrestore(&par->lock, flags);
+}
+
+static int leo_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+       /* We just use this to catch switches out of
+        * graphics mode.
+        */
+       leo_switch_from_graph(info);
+
+       if (var->xoffset || var->yoffset || var->vmode)
+               return -EINVAL;
+       return 0;
+}
+
 /**
  *      leo_setcolreg - Optional function. Sets a color register.
  *      @regno: boolean, 0 copy local, 1 get_user() function
@@ -454,44 +510,6 @@ static void leo_init_wids(struct fb_info *info)
        leo_wid_put(info, &wl);
 }
 
-static void leo_switch_from_graph(struct fb_info *info)
-{
-       struct leo_par *par = (struct leo_par *) info->par;
-       struct leo_ld_ss0 __iomem *ss = par->ld_ss0;
-       unsigned long flags;
-       u32 val;
-
-       spin_lock_irqsave(&par->lock, flags);
-
-       par->extent = ((info->var.xres - 1) |
-                      ((info->var.yres - 1) << 16));
-
-       sbus_writel(0xffffffff, &ss->wid);
-       sbus_writel(0xffff, &ss->wmask);
-       sbus_writel(0, &ss->vclipmin);
-       sbus_writel(par->extent, &ss->vclipmax);
-       sbus_writel(0, &ss->fg);
-       sbus_writel(0xff000000, &ss->planemask);
-       sbus_writel(0x310850, &ss->rop);
-       sbus_writel(0, &ss->widclip);
-       sbus_writel((info->var.xres-1) | ((info->var.yres-1) << 11),
-                   &par->lc_ss0_usr->extent);
-       sbus_writel(4, &par->lc_ss0_usr->addrspace);
-       sbus_writel(0x80000000, &par->lc_ss0_usr->fill);
-       sbus_writel(0, &par->lc_ss0_usr->fontt);
-       do {
-               val = sbus_readl(&par->lc_ss0_usr->csr);
-       } while (val & 0x20000000);
-
-       /* setup screen buffer for cfb_* functions */
-       sbus_writel(1, &ss->wid);
-       sbus_writel(0x00ffffff, &ss->planemask);
-       sbus_writel(0x310b90, &ss->rop);
-       sbus_writel(0, &par->lc_ss0_usr->addrspace);
-
-       spin_unlock_irqrestore(&par->lock, flags);
-}
-
 static void leo_init_hw(struct fb_info *info)
 {
        struct leo_par *par = (struct leo_par *) info->par;