diff options
Diffstat (limited to 'drivers/video/vesafb.c')
| -rw-r--r-- | drivers/video/vesafb.c | 44 |
1 files changed, 29 insertions, 15 deletions
diff --git a/drivers/video/vesafb.c b/drivers/video/vesafb.c index 6a069d04791..a99bbe86db1 100644 --- a/drivers/video/vesafb.c +++ b/drivers/video/vesafb.c @@ -303,19 +303,6 @@ static int __init vesafb_probe(struct platform_device *dev) info->apertures->ranges[0].base = screen_info.lfb_base; info->apertures->ranges[0].size = size_total; - info->screen_base = ioremap(vesafb_fix.smem_start, vesafb_fix.smem_len); - if (!info->screen_base) { - printk(KERN_ERR - "vesafb: abort, cannot ioremap video memory 0x%x @ 0x%lx\n", - vesafb_fix.smem_len, vesafb_fix.smem_start); - err = -EIO; - goto err; - } - - printk(KERN_INFO "vesafb: framebuffer at 0x%lx, mapped to 0x%p, " - "using %dk, total %dk\n", - vesafb_fix.smem_start, info->screen_base, - size_remap/1024, size_total/1024); printk(KERN_INFO "vesafb: mode is %dx%dx%d, linelength=%d, pages=%d\n", vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel, vesafb_fix.line_length, screen_info.pages); @@ -438,8 +425,7 @@ static int __init vesafb_probe(struct platform_device *dev) int rc; /* Find the largest power-of-two */ - while (temp_size & (temp_size - 1)) - temp_size &= (temp_size - 1); + temp_size = roundup_pow_of_two(temp_size); /* Try and find a power of two to add */ do { @@ -451,6 +437,34 @@ static int __init vesafb_probe(struct platform_device *dev) } #endif + switch (mtrr) { + case 1: /* uncachable */ + info->screen_base = ioremap_nocache(vesafb_fix.smem_start, vesafb_fix.smem_len); + break; + case 2: /* write-back */ + info->screen_base = ioremap_cache(vesafb_fix.smem_start, vesafb_fix.smem_len); + break; + case 3: /* write-combining */ + info->screen_base = ioremap_wc(vesafb_fix.smem_start, vesafb_fix.smem_len); + break; + case 4: /* write-through */ + default: + info->screen_base = ioremap(vesafb_fix.smem_start, vesafb_fix.smem_len); + break; + } + if (!info->screen_base) { + printk(KERN_ERR + "vesafb: abort, cannot ioremap video memory 0x%x @ 0x%lx\n", + vesafb_fix.smem_len, vesafb_fix.smem_start); + err = -EIO; + goto err; + } + + printk(KERN_INFO "vesafb: framebuffer at 0x%lx, mapped to 0x%p, " + "using %dk, total %dk\n", + vesafb_fix.smem_start, info->screen_base, + size_remap/1024, size_total/1024); + info->fbops = &vesafb_ops; info->var = vesafb_defined; info->fix = vesafb_fix; |