aboutsummaryrefslogtreecommitdiffstats
path: root/arch/x86/kernel
diff options
context:
space:
mode:
authorIngo Molnar <mingo@kernel.org>2014-11-12 09:10:12 -0500
committerIngo Molnar <mingo@kernel.org>2014-11-12 09:10:12 -0500
commit29cc3730370f5fef9762a90fb515a8b1cd5fd7a6 (patch)
tree6cc7faf5284a4fe6626a724791f92c41d244f689 /arch/x86/kernel
parent890ca861f868a10617029ffc87eae7d48ea6876c (diff)
parent6f9b63a0ae0d694e3d8e6f673e1e8e2638526b97 (diff)
Merge tag 'x86_queue_for_3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp into x86/cleanups
Pull two minor cleanups from Borislav Petkov. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/cpu/amd.c23
-rw-r--r--arch/x86/kernel/espfix_64.c3
2 files changed, 11 insertions, 15 deletions
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 813d29d00a17..15c5df92f74e 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -566,6 +566,17 @@ static void init_amd_k8(struct cpuinfo_x86 *c)
566 566
567 if (!c->x86_model_id[0]) 567 if (!c->x86_model_id[0])
568 strcpy(c->x86_model_id, "Hammer"); 568 strcpy(c->x86_model_id, "Hammer");
569
570#ifdef CONFIG_SMP
571 /*
572 * Disable TLB flush filter by setting HWCR.FFDIS on K8
573 * bit 6 of msr C001_0015
574 *
575 * Errata 63 for SH-B3 steppings
576 * Errata 122 for all steppings (F+ have it disabled by default)
577 */
578 msr_set_bit(MSR_K7_HWCR, 6);
579#endif
569} 580}
570 581
571static void init_amd_gh(struct cpuinfo_x86 *c) 582static void init_amd_gh(struct cpuinfo_x86 *c)
@@ -636,18 +647,6 @@ static void init_amd(struct cpuinfo_x86 *c)
636{ 647{
637 u32 dummy; 648 u32 dummy;
638 649
639#ifdef CONFIG_SMP
640 /*
641 * Disable TLB flush filter by setting HWCR.FFDIS on K8
642 * bit 6 of msr C001_0015
643 *
644 * Errata 63 for SH-B3 steppings
645 * Errata 122 for all steppings (F+ have it disabled by default)
646 */
647 if (c->x86 == 0xf)
648 msr_set_bit(MSR_K7_HWCR, 6);
649#endif
650
651 early_init_amd(c); 650 early_init_amd(c);
652 651
653 /* 652 /*
diff --git a/arch/x86/kernel/espfix_64.c b/arch/x86/kernel/espfix_64.c
index 94d857fb1033..f5d0730e7b08 100644
--- a/arch/x86/kernel/espfix_64.c
+++ b/arch/x86/kernel/espfix_64.c
@@ -122,9 +122,6 @@ static void init_espfix_random(void)
122void __init init_espfix_bsp(void) 122void __init init_espfix_bsp(void)
123{ 123{
124 pgd_t *pgd_p; 124 pgd_t *pgd_p;
125 pteval_t ptemask;
126
127 ptemask = __supported_pte_mask;
128 125
129 /* Install the espfix pud into the kernel page directory */ 126 /* Install the espfix pud into the kernel page directory */
130 pgd_p = &init_level4_pgt[pgd_index(ESPFIX_BASE_ADDR)]; 127 pgd_p = &init_level4_pgt[pgd_index(ESPFIX_BASE_ADDR)];