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authorLinus Torvalds <torvalds@linux-foundation.org>2016-05-16 17:17:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-16 17:17:24 -0700
commitbe092017b6ffbd013f481f915632db6aa9fc3ca3 (patch)
tree56f37b2b232ef41c0202c4f57d8e83e93d9168f4 /include
parentfb6363e9f4eeb37323feb8253b93854195942b8b (diff)
parente6d9a52543338603e25e71e0e4942f05dae0dd8a (diff)
downloadlinux-be092017b6ffbd013f481f915632db6aa9fc3ca3.tar.bz2
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon: - virt_to_page/page_address optimisations - support for NUMA systems described using device-tree - support for hibernate/suspend-to-disk - proper support for maxcpus= command line parameter - detection and graceful handling of AArch64-only CPUs - miscellaneous cleanups and non-critical fixes * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (92 commits) arm64: do not enforce strict 16 byte alignment to stack pointer arm64: kernel: Fix incorrect brk randomization arm64: cpuinfo: Missing NULL terminator in compat_hwcap_str arm64: secondary_start_kernel: Remove unnecessary barrier arm64: Ensure pmd_present() returns false after pmd_mknotpresent() arm64: Replace hard-coded values in the pmd/pud_bad() macros arm64: Implement pmdp_set_access_flags() for hardware AF/DBM arm64: Fix typo in the pmdp_huge_get_and_clear() definition arm64: mm: remove unnecessary EXPORT_SYMBOL_GPL arm64: always use STRICT_MM_TYPECHECKS arm64: kvm: Fix kvm teardown for systems using the extended idmap arm64: kaslr: increase randomization granularity arm64: kconfig: drop CONFIG_RTC_LIB dependency arm64: make ARCH_SUPPORTS_DEBUG_PAGEALLOC depend on !HIBERNATION arm64: hibernate: Refuse to hibernate if the boot cpu is offline arm64: kernel: Add support for hibernate/suspend-to-disk PM / Hibernate: Call flush_icache_range() on pages restored in-place arm64: Add new asm macro copy_page arm64: Promote KERNEL_START/KERNEL_END definitions to a header file arm64: kernel: Include _AC definition in page.h ...
Diffstat (limited to 'include')
-rw-r--r--include/linux/mm.h6
-rw-r--r--include/linux/of.h9
2 files changed, 14 insertions, 1 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 8f468e0d2534..727f799757ab 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -72,6 +72,10 @@ extern int mmap_rnd_compat_bits __read_mostly;
#define __pa_symbol(x) __pa(RELOC_HIDE((unsigned long)(x), 0))
#endif
+#ifndef page_to_virt
+#define page_to_virt(x) __va(PFN_PHYS(page_to_pfn(x)))
+#endif
+
/*
* To prevent common memory management code establishing
* a zero page mapping on a read fault.
@@ -957,7 +961,7 @@ static inline struct mem_cgroup *page_memcg(struct page *page)
static __always_inline void *lowmem_page_address(const struct page *page)
{
- return __va(PFN_PHYS(page_to_pfn(page)));
+ return page_to_virt(page);
}
#if defined(CONFIG_HIGHMEM) && !defined(WANT_PAGE_VIRTUAL)
diff --git a/include/linux/of.h b/include/linux/of.h
index 31758036787c..77ddace575e8 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -685,6 +685,15 @@ static inline int of_node_to_nid(struct device_node *device)
}
#endif
+#ifdef CONFIG_OF_NUMA
+extern int of_numa_init(void);
+#else
+static inline int of_numa_init(void)
+{
+ return -ENOSYS;
+}
+#endif
+
static inline struct device_node *of_find_matching_node(
struct device_node *from,
const struct of_device_id *matches)