linux-kernel - linux-next: manual merge of the tip tree with the pm tree

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Date:	Mon, 19 Aug 2013 14:09:21 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Stratos Karafotis <stratosk@...aphore.gr>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Jason Wang <jasowang@...hat.com>
Subject: linux-next: manual merge of the tip tree with the pm tree

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@...b.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);
  

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