diff options
Diffstat (limited to 'arch/x86/mm')
| -rw-r--r-- | arch/x86/mm/fault.c | 9 | ||||
| -rw-r--r-- | arch/x86/mm/gup.c | 10 | ||||
| -rw-r--r-- | arch/x86/mm/init.c | 3 | ||||
| -rw-r--r-- | arch/x86/mm/mmap.c | 20 | ||||
| -rw-r--r-- | arch/x86/mm/mmio-mod.c | 1 |
5 files changed, 13 insertions, 30 deletions
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index 247aae3dc00..5db0490deb0 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -17,6 +17,7 @@ #include <asm/traps.h> /* dotraplinkage, ... */ #include <asm/pgalloc.h> /* pgd_*(), ... */ #include <asm/kmemcheck.h> /* kmemcheck_*(), ... */ +#include <asm/fixmap.h> /* VSYSCALL_START */ /* * Page fault error code bits: @@ -419,12 +420,14 @@ static noinline __kprobes int vmalloc_fault(unsigned long address) return 0; } +#ifdef CONFIG_CPU_SUP_AMD static const char errata93_warning[] = KERN_ERR "******* Your BIOS seems to not contain a fix for K8 errata #93\n" "******* Working around it, but it may cause SEGVs or burn power.\n" "******* Please consider a BIOS update.\n" "******* Disabling USB legacy in the BIOS may also help.\n"; +#endif /* * No vm86 mode in 64-bit mode: @@ -504,7 +507,11 @@ bad: */ static int is_errata93(struct pt_regs *regs, unsigned long address) { -#ifdef CONFIG_X86_64 +#if defined(CONFIG_X86_64) && defined(CONFIG_CPU_SUP_AMD) + if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD + || boot_cpu_data.x86 != 0xf) + return 0; + if (address != regs->ip) return 0; diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c index dbe34b93137..ea305856151 100644 --- a/arch/x86/mm/gup.c +++ b/arch/x86/mm/gup.c @@ -108,16 +108,6 @@ static inline void get_head_page_multiple(struct page *page, int nr) SetPageReferenced(page); } -static inline void get_huge_page_tail(struct page *page) -{ - /* - * __split_huge_page_refcount() cannot run - * from under us. - */ - VM_BUG_ON(atomic_read(&page->_count) < 0); - atomic_inc(&page->_count); -} - static noinline int gup_huge_pmd(pmd_t pmd, unsigned long addr, unsigned long end, int write, struct page **pages, int *nr) { diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 30326443ab8..87488b93a65 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -63,9 +63,8 @@ static void __init find_early_table_space(unsigned long end, int use_pse, #ifdef CONFIG_X86_32 /* for fixmap */ tables += roundup(__end_of_fixed_addresses * sizeof(pte_t), PAGE_SIZE); - - good_end = max_pfn_mapped << PAGE_SHIFT; #endif + good_end = max_pfn_mapped << PAGE_SHIFT; base = memblock_find_in_range(start, good_end, tables, PAGE_SIZE); if (base == MEMBLOCK_ERROR) diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c index 1dab5194fd9..4b5ba85eb5c 100644 --- a/arch/x86/mm/mmap.c +++ b/arch/x86/mm/mmap.c @@ -31,6 +31,10 @@ #include <linux/sched.h> #include <asm/elf.h> +struct __read_mostly va_alignment va_align = { + .flags = -1, +}; + static unsigned int stack_maxrandom_size(void) { unsigned int max = 0; @@ -42,7 +46,6 @@ static unsigned int stack_maxrandom_size(void) return max; } - /* * Top of mmap area (just below the process stack). * @@ -51,21 +54,6 @@ static unsigned int stack_maxrandom_size(void) #define MIN_GAP (128*1024*1024UL + stack_maxrandom_size()) #define MAX_GAP (TASK_SIZE/6*5) -/* - * True on X86_32 or when emulating IA32 on X86_64 - */ -static int mmap_is_ia32(void) -{ -#ifdef CONFIG_X86_32 - return 1; -#endif -#ifdef CONFIG_IA32_EMULATION - if (test_thread_flag(TIF_IA32)) - return 1; -#endif - return 0; -} - static int mmap_is_legacy(void) { if (current->personality & ADDR_COMPAT_LAYOUT) diff --git a/arch/x86/mm/mmio-mod.c b/arch/x86/mm/mmio-mod.c index 67421f38a21..de54b9b278a 100644 --- a/arch/x86/mm/mmio-mod.c +++ b/arch/x86/mm/mmio-mod.c @@ -29,7 +29,6 @@ #include <linux/slab.h> #include <linux/uaccess.h> #include <linux/io.h> -#include <linux/version.h> #include <linux/kallsyms.h> #include <asm/pgtable.h> #include <linux/mmiotrace.h> |