[tip:x86/cpu] x86/cpufeature: Remove cpu_has_xmm2

[tip-bot for Borislav Petkov <tipbot@zytor.com>]

Commit-ID:  054efb6467f84490bdf92afab6d9dbd5102e620a
Gitweb:     http://git.kernel.org/tip/054efb6467f84490bdf92afab6d9dbd5102e620a
Author:     Borislav Petkov <bp@suse.de>
AuthorDate: Tue, 29 Mar 2016 17:42:00 +0200
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Thu, 31 Mar 2016 13:35:09 +0200

x86/cpufeature: Remove cpu_has_xmm2

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-crypto@vger.kernel.org
Link: http://lkml.kernel.org/r/1459266123-21878-8-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/crypto/poly1305_glue.c     | 2 +-
 arch/x86/crypto/serpent_sse2_glue.c | 2 +-
 arch/x86/include/asm/cpufeature.h   | 1 -
 arch/x86/kernel/cpu/amd.c           | 2 +-
 arch/x86/kernel/cpu/intel.c         | 2 +-
 arch/x86/lib/usercopy_32.c          | 4 ++--
 6 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/arch/x86/crypto/poly1305_glue.c b/arch/x86/crypto/poly1305_glue.c
index 4264a3d..b283868 100644
--- a/arch/x86/crypto/poly1305_glue.c
+++ b/arch/x86/crypto/poly1305_glue.c
@@ -179,7 +179,7 @@ static struct shash_alg alg = {
 
 static int __init poly1305_simd_mod_init(void)
 {
-	if (!cpu_has_xmm2)
+	if (!boot_cpu_has(X86_FEATURE_XMM2))
 		return -ENODEV;
 
 #ifdef CONFIG_AS_AVX2
diff --git a/arch/x86/crypto/serpent_sse2_glue.c b/arch/x86/crypto/serpent_sse2_glue.c
index 8943407..644f97a 100644
--- a/arch/x86/crypto/serpent_sse2_glue.c
+++ b/arch/x86/crypto/serpent_sse2_glue.c
@@ -600,7 +600,7 @@ static struct crypto_alg serpent_algs[10] = { {
 
 static int __init serpent_sse2_init(void)
 {
-	if (!cpu_has_xmm2) {
+	if (!boot_cpu_has(X86_FEATURE_XMM2)) {
 		printk(KERN_INFO "SSE2 instructions are not detected.\n");
 		return -ENODEV;
 	}
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index a751542..5e02bc2 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -125,7 +125,6 @@ extern const char * const x86_bug_flags[NBUGINTS*32];
 #define cpu_has_apic		boot_cpu_has(X86_FEATURE_APIC)
 #define cpu_has_fxsr		boot_cpu_has(X86_FEATURE_FXSR)
 #define cpu_has_xmm		boot_cpu_has(X86_FEATURE_XMM)
-#define cpu_has_xmm2		boot_cpu_has(X86_FEATURE_XMM2)
 #define cpu_has_aes		boot_cpu_has(X86_FEATURE_AES)
 #define cpu_has_avx		boot_cpu_has(X86_FEATURE_AVX)
 #define cpu_has_avx2		boot_cpu_has(X86_FEATURE_AVX2)
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 6e47e3a..ea8f88a 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -750,7 +750,7 @@ static void init_amd(struct cpuinfo_x86 *c)
 	if (c->x86 >= 0xf)
 		set_cpu_cap(c, X86_FEATURE_K8);
 
-	if (cpu_has_xmm2) {
+	if (cpu_has(c, X86_FEATURE_XMM2)) {
 		/* MFENCE stops RDTSC speculation */
 		set_cpu_cap(c, X86_FEATURE_MFENCE_RDTSC);
 	}
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 628a9f8..1dba36f 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -456,7 +456,7 @@ static void init_intel(struct cpuinfo_x86 *c)
 			set_cpu_cap(c, X86_FEATURE_ARCH_PERFMON);
 	}
 
-	if (cpu_has_xmm2)
+	if (cpu_has(c, X86_FEATURE_XMM2))
 		set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);
 
 	if (boot_cpu_has(X86_FEATURE_DS)) {
diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
index 91d93b9..b559d92 100644
--- a/arch/x86/lib/usercopy_32.c
+++ b/arch/x86/lib/usercopy_32.c
@@ -612,7 +612,7 @@ unsigned long __copy_from_user_ll_nocache(void *to, const void __user *from,
 {
 	stac();
 #ifdef CONFIG_X86_INTEL_USERCOPY
-	if (n > 64 && cpu_has_xmm2)
+	if (n > 64 && static_cpu_has(X86_FEATURE_XMM2))
 		n = __copy_user_zeroing_intel_nocache(to, from, n);
 	else
 		__copy_user_zeroing(to, from, n);
@@ -629,7 +629,7 @@ unsigned long __copy_from_user_ll_nocache_nozero(void *to, const void __user *fr
 {
 	stac();
 #ifdef CONFIG_X86_INTEL_USERCOPY
-	if (n > 64 && cpu_has_xmm2)
+	if (n > 64 && static_cpu_has(X86_FEATURE_XMM2))
 		n = __copy_user_intel_nocache(to, from, n);
 	else
 		__copy_user(to, from, n);