From 35605a1027ac630f85a1b95684f7e86b82498cd6 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Mon, 24 Mar 2008 16:02:01 -0700 Subject: x86: enable PAT for amd k8 and fam10h make known_pat_cpu to think amd k8 and fam10h is ok too. also make tom2 below to be WRBACK Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- arch/x86/mm/pat.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/x86/mm') diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index 57a2af36d6e..0648a2225b0 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -47,6 +47,12 @@ static int pat_known_cpu(void) return 1; } } + if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD && + boot_cpu_data.x86 >= 0xf && boot_cpu_data.x86 <= 0x11) { + if (cpu_has_pat) { + return 1; + } + } pat_wc_enabled = 0; printk(KERN_INFO "CPU and/or kernel does not support PAT.\n"); -- cgit v1.2.3