diff options
Diffstat (limited to 'src/cpu/p6/cpufixup.c')
| -rw-r--r-- | src/cpu/p6/cpufixup.c | 43 |
1 files changed, 27 insertions, 16 deletions
diff --git a/src/cpu/p6/cpufixup.c b/src/cpu/p6/cpufixup.c index f3d614b734..e5cd3fc017 100644 --- a/src/cpu/p6/cpufixup.c +++ b/src/cpu/p6/cpufixup.c @@ -1,18 +1,13 @@ /* microcode.c: Microcode update for PIII and later CPUS * - * $Id$ */ - -#ifndef lint -static char rcsid[] = "$Id$"; -#endif - -#include <pciconf.h> -#include <subr.h> +#include <console/console.h> +#include <mem.h> #include <cpu/p6/msr.h> -#include <printk.h> #include <cpu/p5/cpuid.h> -#include <cpu/cpufixup.h> +#include <cpu/k8/mtrr.h> +#include <device/device.h> +#include <device/chip.h> struct microcode { unsigned int hdrver; @@ -300,24 +295,33 @@ unsigned int microcode_updates [] = { 0x57688086, 0x218e4005, 0xca054e3d, 0xc1a3c3ec, }; + static void display_cpuid_update_microcode(void) { unsigned int eax, ebx, ecx, edx; unsigned int pf, rev, sig, val[2]; unsigned int x86_model, x86_family, i; struct microcode *m; - + msr_t msr; /* cpuid sets msr 0x8B iff a microcode update has been loaded. */ - wrmsr(0x8B, 0, 0); + //wrmsr(0x8B, 0, 0); + msr.lo = msr.hi = 0; + wrmsr(0x8b, msr); cpuid(1, &eax, &ebx, &ecx, &edx); - rdmsr(0x8B, val[0], rev); + //rdmsr(0x8B, val[0], rev); + msr = rdmsr(0x8b); + val[0] = msr.lo; + rev = msr.hi; x86_model = (eax >>4) & 0x0f; x86_family = (eax >>8) & 0x0f; sig = eax; pf = 0; if ((x86_model >= 5)||(x86_family>6)) { - rdmsr(0x17, val[0], val[1]); + //rdmsr(0x17, val[0], val[1]); + msr = rdmsr(0x17); + val[0] = msr.lo; + val[1] = msr.hi; pf = 1 << ((val[1] >> 18) & 7); } printk_debug("microcode_info: sig = 0x%08x pf=0x%08x rev = 0x%08x\n", @@ -326,9 +330,16 @@ static void display_cpuid_update_microcode(void) m = (void *)µcode_updates; for(i = 0; i < sizeof(microcode_updates)/sizeof(struct microcode); i++) { if ((m[i].sig == sig) && (m[i].pf == pf)) { - wrmsr(0x79, (unsigned int)&m[i].bits, 0); + //wrmsr(0x79, (unsigned int)&m[i].bits, 0); + msr.lo = (unsigned int)&m[i].bits; + msr.hi = 0; + wrmsr(0x79, msr); + __asm__ __volatile__ ("cpuid" : : : "ax", "bx", "cx", "dx"); - rdmsr(0x8B, val[0], val[1]); + //rdmsr(0x8B, val[0], val[1]); + msr = rdmsr(0x8b); + val[0] = msr.lo; + val[1] = msr.hi; printk_info("microcode updated from revision %d to %d\n", rev, val[1]); } |