root/arch/x86/kernel/cpu/transmeta.c

DEFINITIONS

1. early_init_transmeta
2. init_transmeta

#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <asm/processor.h>
#include <asm/msr.h>
#include "cpu.h"

static void __cpuinit early_init_transmeta(struct cpuinfo_x86 *c)
{
        u32 xlvl;

        /* Transmeta-defined flags: level 0x80860001 */
        xlvl = cpuid_eax(0x80860000);
        if ((xlvl & 0xffff0000) == 0x80860000) {
                if (xlvl >= 0x80860001)
                        c->x86_capability[2] = cpuid_edx(0x80860001);
        }
}

static void __cpuinit init_transmeta(struct cpuinfo_x86 *c)
{
        unsigned int cap_mask, uk, max, dummy;
        unsigned int cms_rev1, cms_rev2;
        unsigned int cpu_rev, cpu_freq = 0, cpu_flags, new_cpu_rev;
        char cpu_info[65];

        early_init_transmeta(c);

        display_cacheinfo(c);

        /* Print CMS and CPU revision */
        max = cpuid_eax(0x80860000);
        cpu_rev = 0;
        if (max >= 0x80860001) {
                cpuid(0x80860001, &dummy, &cpu_rev, &cpu_freq, &cpu_flags);
                if (cpu_rev != 0x02000000) {
                        printk(KERN_INFO "CPU: Processor revision %u.%u.%u.%u, %u MHz\n",
                                (cpu_rev >> 24) & 0xff,
                                (cpu_rev >> 16) & 0xff,
                                (cpu_rev >> 8) & 0xff,
                                cpu_rev & 0xff,
                                cpu_freq);
                }
        }
        if (max >= 0x80860002) {
                cpuid(0x80860002, &new_cpu_rev, &cms_rev1, &cms_rev2, &dummy);
                if (cpu_rev == 0x02000000) {
                        printk(KERN_INFO "CPU: Processor revision %08X, %u MHz\n",
                                new_cpu_rev, cpu_freq);
                }
                printk(KERN_INFO "CPU: Code Morphing Software revision %u.%u.%u-%u-%u\n",
                       (cms_rev1 >> 24) & 0xff,
                       (cms_rev1 >> 16) & 0xff,
                       (cms_rev1 >> 8) & 0xff,
                       cms_rev1 & 0xff,
                       cms_rev2);
        }
        if (max >= 0x80860006) {
                cpuid(0x80860003,
                      (void *)&cpu_info[0],
                      (void *)&cpu_info[4],
                      (void *)&cpu_info[8],
                      (void *)&cpu_info[12]);
                cpuid(0x80860004,
                      (void *)&cpu_info[16],
                      (void *)&cpu_info[20],
                      (void *)&cpu_info[24],
                      (void *)&cpu_info[28]);
                cpuid(0x80860005,
                      (void *)&cpu_info[32],
                      (void *)&cpu_info[36],
                      (void *)&cpu_info[40],
                      (void *)&cpu_info[44]);
                cpuid(0x80860006,
                      (void *)&cpu_info[48],
                      (void *)&cpu_info[52],
                      (void *)&cpu_info[56],
                      (void *)&cpu_info[60]);
                cpu_info[64] = '\0';
                printk(KERN_INFO "CPU: %s\n", cpu_info);
        }

        /* Unhide possibly hidden capability flags */
        rdmsr(0x80860004, cap_mask, uk);
        wrmsr(0x80860004, ~0, uk);
        c->x86_capability[0] = cpuid_edx(0x00000001);
        wrmsr(0x80860004, cap_mask, uk);

        /* All Transmeta CPUs have a constant TSC */
        set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);

#ifdef CONFIG_SYSCTL
        /*
         * randomize_va_space slows us down enormously;
         * it probably triggers retranslation of x86->native bytecode
         */
        randomize_va_space = 0;
#endif
}

static struct cpu_dev transmeta_cpu_dev __cpuinitdata = {
        .c_vendor       = "Transmeta",
        .c_ident        = { "GenuineTMx86", "TransmetaCPU" },
        .c_early_init   = early_init_transmeta,
        .c_init         = init_transmeta,
        .c_x86_vendor   = X86_VENDOR_TRANSMETA,
};

cpu_dev_register(transmeta_cpu_dev);