From: Linus Torvalds Date: Fri, 28 Oct 2011 12:14:48 +0000 (-0700) Subject: Merge branch 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel... X-Git-Tag: v3.2-rc1~140 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8237eb946a1a23c600fb289cf8dd3b399b10604e;p=profile%2Fcommon%2Fkernel-common.git Merge branch 'x86-microcode-for-linus' of git://git./linux/kernel/git/tip/tip * 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, microcode, AMD: Add microcode revision to /proc/cpuinfo x86, microcode: Correct microcode revision format coretemp: Get microcode revision from cpu_data x86, intel: Use c->microcode for Atom errata check x86, intel: Output microcode revision in /proc/cpuinfo x86, microcode: Don't request microcode from userspace unnecessarily Fix up trivial conflicts in arch/x86/kernel/cpu/amd.c (conflict between moving AMD BSP code to cpu_dev helper function and adding AMD microcode revision to /proc/cpuinfo code) --- 8237eb946a1a23c600fb289cf8dd3b399b10604e diff --cc arch/x86/kernel/cpu/amd.c index 13c6ec8,d898fab..46ae4f6 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@@ -411,36 -410,10 +411,38 @@@ static void __cpuinit early_init_amd_mc #endif } +static void __cpuinit bsp_init_amd(struct cpuinfo_x86 *c) +{ + if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) { + + if (c->x86 > 0x10 || + (c->x86 == 0x10 && c->x86_model >= 0x2)) { + u64 val; + + rdmsrl(MSR_K7_HWCR, val); + if (!(val & BIT(24))) + printk(KERN_WARNING FW_BUG "TSC doesn't count " + "with P0 frequency!\n"); + } + } + + if (c->x86 == 0x15) { + unsigned long upperbit; + u32 cpuid, assoc; + + cpuid = cpuid_edx(0x80000005); + assoc = cpuid >> 16 & 0xff; + upperbit = ((cpuid >> 24) << 10) / assoc; + + va_align.mask = (upperbit - 1) & PAGE_MASK; + va_align.flags = ALIGN_VA_32 | ALIGN_VA_64; + } +} + static void __cpuinit early_init_amd(struct cpuinfo_x86 *c) { + u32 dummy; + early_init_amd_mc(c); /* @@@ -470,6 -443,25 +472,8 @@@ set_cpu_cap(c, X86_FEATURE_EXTD_APICID); } #endif + + rdmsr_safe(MSR_AMD64_PATCH_LEVEL, &c->microcode, &dummy); - - /* We need to do the following only once */ - if (c != &boot_cpu_data) - return; - - if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) { - - if (c->x86 > 0x10 || - (c->x86 == 0x10 && c->x86_model >= 0x2)) { - u64 val; - - rdmsrl(MSR_K7_HWCR, val); - if (!(val & BIT(24))) - printk(KERN_WARNING FW_BUG "TSC doesn't count " - "with P0 frequency!\n"); - } - } } static void __cpuinit init_amd(struct cpuinfo_x86 *c)