1 files changed, 107 insertions, 0 deletions

diff --git a/arch/i386/kernel/cpu/transmeta.c b/arch/i386/kernel/cpu/transmeta.c
new file mode 100644
index 000000000000..f57e5ee94943
--- /dev/null
+++ b/arch/i386/kernel/cpu/transmeta.c
@@ -0,0 +1,107 @@
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <asm/processor.h>
+#include <asm/msr.h>
+#include "cpu.h"
+
+static void __init 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, cpu_flags, new_cpu_rev;
+        char cpu_info[65];
+
+        get_model_name(c);      /* Same as AMD/Cyrix */
+        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);
+        
+        /* If we can run i686 user-space code, call us an i686 */
+#define USER686 (X86_FEATURE_TSC|X86_FEATURE_CX8|X86_FEATURE_CMOV)
+        if ( c->x86 == 5 && (c->x86_capability[0] & USER686) == USER686 )
+                c->x86 = 6;
+}
+
+static void transmeta_identify(struct cpuinfo_x86 * c)
+{
+        u32 xlvl;
+        generic_identify(c);
+
+        /* Transmeta-defined flags: level 0x80860001 */
+        xlvl = cpuid_eax(0x80860000);
+        if ( (xlvl & 0xffff0000) == 0x80860000 ) {
+                if (  xlvl >= 0x80860001 )
+                        c->x86_capability[2] = cpuid_edx(0x80860001);
+        }
+}
+
+static struct cpu_dev transmeta_cpu_dev __initdata = {
+        .c_vendor       = "Transmeta",
+        .c_ident        = { "GenuineTMx86", "TransmetaCPU" },
+        .c_init         = init_transmeta,
+        .c_identify     = transmeta_identify,
+};
+
+int __init transmeta_init_cpu(void)
+{
+        cpu_devs[X86_VENDOR_TRANSMETA] = &transmeta_cpu_dev;
+        return 0;
+}
+
+//early_arch_initcall(transmeta_init_cpu);