Hi all, Today's linux-next merge of the tip tree got a conflict in arch/x86/include/asm/processor.h between commit 61c63e5ed3b9 ("cpufreq: Remove unused APERF/MPERF support") from the pm tree and commit 96e39ac0e9d1 ("x86: Introduce hypervisor_cpuid_base()") from the tip tree. I fixed it up (see below) and can carry the fix as necessary (no action is required). -- Cheers, Stephen Rothwell sfr@canb.auug.org.au diff --cc arch/x86/include/asm/processor.h index 4f4a3d9,61a5533..0000000 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@@ -942,6 -942,50 +942,21 @@@ extern int set_tsc_mode(unsigned int va extern u16 amd_get_nb_id(int cpu); -struct aperfmperf { - u64 aperf, mperf; -}; - -static inline void get_aperfmperf(struct aperfmperf *am) -{ - WARN_ON_ONCE(!boot_cpu_has(X86_FEATURE_APERFMPERF)); - - rdmsrl(MSR_IA32_APERF, am->aperf); - rdmsrl(MSR_IA32_MPERF, am->mperf); -} - -#define APERFMPERF_SHIFT 10 - -static inline -unsigned long calc_aperfmperf_ratio(struct aperfmperf *old, - struct aperfmperf *new) -{ - u64 aperf = new->aperf - old->aperf; - u64 mperf = new->mperf - old->mperf; - unsigned long ratio = aperf; - - mperf >>= APERFMPERF_SHIFT; - if (mperf) - ratio = div64_u64(aperf, mperf); - - return ratio; -} - + static inline uint32_t hypervisor_cpuid_base(const char *sig, uint32_t leaves) + { + uint32_t base, eax, signature[3]; + + for (base = 0x40000000; base < 0x40010000; base += 0x100) { + cpuid(base, &eax, &signature[0], &signature[1], &signature[2]); + + if (!memcmp(sig, signature, 12) && + (leaves == 0 || ((eax - base) >= leaves))) + return base; + } + + return 0; + } + extern unsigned long arch_align_stack(unsigned long sp); extern void free_init_pages(char *what, unsigned long begin, unsigned long end);