summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorBorislav Petkov <bp@suse.de>2016-03-29 17:42:00 +0200
committerIngo Molnar <mingo@kernel.org>2016-03-31 13:35:09 +0200
commit054efb6467f84490bdf92afab6d9dbd5102e620a (patch)
tree0cd41e8f6f42f8eb7e3061998192fdc8e19cde39
parent906bf7fda2c9cf5c1762ec607943ed54b6c5b203 (diff)
downloadop-kernel-dev-054efb6467f84490bdf92afab6d9dbd5102e620a.zip
op-kernel-dev-054efb6467f84490bdf92afab6d9dbd5102e620a.tar.gz
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>
-rw-r--r--arch/x86/crypto/poly1305_glue.c2
-rw-r--r--arch/x86/crypto/serpent_sse2_glue.c2
-rw-r--r--arch/x86/include/asm/cpufeature.h1
-rw-r--r--arch/x86/kernel/cpu/amd.c2
-rw-r--r--arch/x86/kernel/cpu/intel.c2
-rw-r--r--arch/x86/lib/usercopy_32.c4
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);
OpenPOWER on IntegriCloud