what's the easiest way to build this to test on 2.6?
Rudolf Marek wrote:
>>Yes, use 100. That's already what MDS did if I'm not mistaking.
>
>
> done
>
>
>>Yes, it's definitely compile-time stuff. You compile for a given
>>architecture anyway! So what you did is fine.
>
>
> Ok in attach, version that can be used for testing. It is using the
> numerical VRM, "while" instead of "for" in lookup func and other changes
> proposed by you. I think this is the end of email storm :)
>
>
> Regards
>
> Rudolf
>
>
> ------------------------------------------------------------------------
>
> #include <linux/init.h>
> #include <linux/module.h>
> #include <linux/kernel.h>
>
> typedef struct {
> u8 vendor;
> u8 eff_family;
> u8 eff_model;
> int vrm_type;
> } vrm_models_t;
> #define ANY 0xFF
>
> #ifdef CONFIG_X86
>
> vrm_models_t vrm_models[] = {
> {X86_VENDOR_AMD,0x6,ANY,90}, /*athlon duron etc*/
> {X86_VENDOR_AMD,0xF,0x4,90}, /*Athlon 64*/
> {X86_VENDOR_AMD,0xF,0x5,24}, /* Opteron*/
> {X86_VENDOR_INTEL,0x6,0x9,85}, /* 0.13um too */
> {X86_VENDOR_INTEL,0x6,0xB,85}, /* 0xB Tualatin */
> {X86_VENDOR_INTEL,0x6,ANY,82}, /* any P6 */
> {X86_VENDOR_INTEL,0x7,ANY,00}, /* Itanium */
> {X86_VENDOR_INTEL,0xF,0x3,100}, /* P4 Prescott */
> {X86_VENDOR_INTEL,0xF,ANY,90}, /* P4 before Prescott */
> {X86_VENDOR_INTEL,0x10,ANY,00}, /*Itanium 2*/
> {X86_VENDOR_UNKNOWN,ANY,ANY,00} /* stop here */
> };
>
> static int find_vrm(u8 eff_family,u8 eff_model,u8 vendor) {
> int i=0;
>
> while (vrm_models[i].vendor!=X86_VENDOR_UNKNOWN) {
> if (vrm_models[i].vendor==vendor)
> if ((vrm_models[i].eff_family==eff_family)&& \
> ((vrm_models[i].eff_model==eff_model)|| \
> (vrm_models[i].eff_model==ANY))) return vrm_models[i].vrm_type;
> i++;
> }
>
> return 00;
> }
>
>
> int which_vrm(void) {
> struct cpuinfo_x86 *c = cpu_data;
> u32 eax;
> u8 eff_family,eff_model;
>
> if (c->x86 < 6) return 00; /* any CPU with familly lower than 6
> dont have VID and/or CPUID*/
>
> eax = cpuid_eax(1);
> eff_family = ((eax & 0x00000F00)>>8);
> eff_model = ((eax & 0x000000F0)>>4);
> if (eff_family == 0xF) { /* use extended model & familly */
> eff_family+=((eax & 0x00F00000)>>20); /*compute effective family */
> eff_model+= ((eax & 0x000F0000)>>16)<<4; /*compute effective model */
> }
> return find_vrm(eff_family,eff_model,c->x86_vendor);
>
> }
> /* and now something completely different for Non-x86 world*/
> #else
> int which_vrm(void) {
> return 00;
> }
> #endif
>
> static int hello_init(void)
> {
> printk(KERN_ALERT "Hello, world %d\n",which_vrm());
> return 0;
> }
>
> static void hello_exit(void)
> {
> printk(KERN_ALERT "Goodbye, cruel world\n");
> }
>
> module_init(hello_init);
> module_exit(hello_exit);
> MODULE_LICENSE("GPL");
