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authorLinus Torvalds <torvalds@linux-foundation.org>2011-10-28 05:03:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-10-28 05:03:12 -0700
commite34eb39c1c791fe79da6aae0d9057f0c74c2f0ed (patch)
treecfc27d987b2c888f189f35326702220b694596cc /arch/x86/include
parent396e6e49c58bb23d1814d3c240c736c9f01523c5 (diff)
parent910b2c5122ab787179a790ca1dec616fc80f0173 (diff)
downloadlinux-e34eb39c1c791fe79da6aae0d9057f0c74c2f0ed.tar.bz2
Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, amd: Include linux/elf.h since we use stuff from asm/elf.h x86: cache_info: Update calculation of AMD L3 cache indices x86: cache_info: Kill the atomic allocation in amd_init_l3_cache() x86: cache_info: Kill the moronic shadow struct x86: cache_info: Remove bogus free of amd_l3_cache data x86, amd: Include elf.h explicitly, prepare the code for the module.h split x86-32, amd: Move va_align definition to unbreak 32-bit build x86, amd: Move BSP code to cpu_dev helper x86: Add a BSP cpu_dev helper x86, amd: Avoid cache aliasing penalties on AMD family 15h
Diffstat (limited to 'arch/x86/include')
-rw-r--r--arch/x86/include/asm/amd_nb.h6
-rw-r--r--arch/x86/include/asm/elf.h31
2 files changed, 37 insertions, 0 deletions
diff --git a/arch/x86/include/asm/amd_nb.h b/arch/x86/include/asm/amd_nb.h
index 67f87f257611..8e41071704a5 100644
--- a/arch/x86/include/asm/amd_nb.h
+++ b/arch/x86/include/asm/amd_nb.h
@@ -19,9 +19,15 @@ extern int amd_numa_init(void);
extern int amd_get_subcaches(int);
extern int amd_set_subcaches(int, int);
+struct amd_l3_cache {
+ unsigned indices;
+ u8 subcaches[4];
+};
+
struct amd_northbridge {
struct pci_dev *misc;
struct pci_dev *link;
+ struct amd_l3_cache l3_cache;
};
struct amd_northbridge_info {
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index f2ad2163109d..5f962df30d0f 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -4,6 +4,7 @@
/*
* ELF register definitions..
*/
+#include <linux/thread_info.h>
#include <asm/ptrace.h>
#include <asm/user.h>
@@ -320,4 +321,34 @@ extern int syscall32_setup_pages(struct linux_binprm *, int exstack);
extern unsigned long arch_randomize_brk(struct mm_struct *mm);
#define arch_randomize_brk arch_randomize_brk
+/*
+ * True on X86_32 or when emulating IA32 on X86_64
+ */
+static inline 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;
+}
+
+/* The first two values are special, do not change. See align_addr() */
+enum align_flags {
+ ALIGN_VA_32 = BIT(0),
+ ALIGN_VA_64 = BIT(1),
+ ALIGN_VDSO = BIT(2),
+ ALIGN_TOPDOWN = BIT(3),
+};
+
+struct va_alignment {
+ int flags;
+ unsigned long mask;
+} ____cacheline_aligned;
+
+extern struct va_alignment va_align;
+extern unsigned long align_addr(unsigned long, struct file *, enum align_flags);
#endif /* _ASM_X86_ELF_H */