toshiba: use ioremap_cached
Alan Cox [Tue, 29 Apr 2008 13:20:23 +0000 (14:20 +0100)]
The switch of ioremap to default to uncached doesn't break this driver
but it does needlessly slow it down as BIOS space is cachable and this
driver is quite happy scanning cached ROM space.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

drivers/char/toshiba.c

index 64f1cee..663cd15 100644 (file)
@@ -426,7 +426,7 @@ static int tosh_probe(void)
        int i,major,minor,day,year,month,flag;
        unsigned char signature[7] = { 0x54,0x4f,0x53,0x48,0x49,0x42,0x41 };
        SMMRegisters regs;
-       void __iomem *bios = ioremap(0xf0000, 0x10000);
+       void __iomem *bios = ioremap_cache(0xf0000, 0x10000);
 
        if (!bios)
                return -ENOMEM;