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authorDavid S. Miller <davem@davemloft.net>2014-07-16 14:09:34 -0700
committerDavid S. Miller <davem@davemloft.net>2014-07-16 14:09:34 -0700
commit1a98c69af1ecd97bfd1f4e4539924a9192434e36 (patch)
treea243defcf921ea174f8e43fce11d06830a6a9c36 /arch/arm64
parent7a575f6b907ea5d207d2b5010293c189616eae34 (diff)
parentb6603fe574af289dbe9eb9fb4c540bca04f5a053 (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/arm64')
-rw-r--r--arch/arm64/include/asm/memory.h2
-rw-r--r--arch/arm64/include/asm/pgtable.h2
-rw-r--r--arch/arm64/include/asm/ptrace.h4
-rw-r--r--arch/arm64/kernel/efi-entry.S3
-rw-r--r--arch/arm64/kernel/head.S3
-rw-r--r--arch/arm64/mm/copypage.c2
-rw-r--r--arch/arm64/mm/flush.c3
7 files changed, 13 insertions, 6 deletions
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index 993bce527b85..902eb708804a 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -56,6 +56,8 @@
#define TASK_SIZE_32 UL(0x100000000)
#define TASK_SIZE (test_thread_flag(TIF_32BIT) ? \
TASK_SIZE_32 : TASK_SIZE_64)
+#define TASK_SIZE_OF(tsk) (test_tsk_thread_flag(tsk, TIF_32BIT) ? \
+ TASK_SIZE_32 : TASK_SIZE_64)
#else
#define TASK_SIZE TASK_SIZE_64
#endif /* CONFIG_COMPAT */
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 579702086488..e0ccceb317d9 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -292,7 +292,7 @@ extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
#define pmd_sect(pmd) ((pmd_val(pmd) & PMD_TYPE_MASK) == \
PMD_TYPE_SECT)
-#ifdef ARM64_64K_PAGES
+#ifdef CONFIG_ARM64_64K_PAGES
#define pud_sect(pud) (0)
#else
#define pud_sect(pud) ((pud_val(pud) & PUD_TYPE_MASK) == \
diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h
index a429b5940be2..501000fadb6f 100644
--- a/arch/arm64/include/asm/ptrace.h
+++ b/arch/arm64/include/asm/ptrace.h
@@ -21,6 +21,10 @@
#include <uapi/asm/ptrace.h>
+/* Current Exception Level values, as contained in CurrentEL */
+#define CurrentEL_EL1 (1 << 2)
+#define CurrentEL_EL2 (2 << 2)
+
/* AArch32-specific ptrace requests */
#define COMPAT_PTRACE_GETREGS 12
#define COMPAT_PTRACE_SETREGS 13
diff --git a/arch/arm64/kernel/efi-entry.S b/arch/arm64/kernel/efi-entry.S
index 66716c9b9e5f..619b1dd7bcde 100644
--- a/arch/arm64/kernel/efi-entry.S
+++ b/arch/arm64/kernel/efi-entry.S
@@ -78,8 +78,7 @@ ENTRY(efi_stub_entry)
/* Turn off Dcache and MMU */
mrs x0, CurrentEL
- cmp x0, #PSR_MODE_EL2t
- ccmp x0, #PSR_MODE_EL2h, #0x4, ne
+ cmp x0, #CurrentEL_EL2
b.ne 1f
mrs x0, sctlr_el2
bic x0, x0, #1 << 0 // clear SCTLR.M
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index a96d3a6a63f6..a2c1195abb7f 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -270,8 +270,7 @@ ENDPROC(stext)
*/
ENTRY(el2_setup)
mrs x0, CurrentEL
- cmp x0, #PSR_MODE_EL2t
- ccmp x0, #PSR_MODE_EL2h, #0x4, ne
+ cmp x0, #CurrentEL_EL2
b.ne 1f
mrs x0, sctlr_el2
CPU_BE( orr x0, x0, #(1 << 25) ) // Set the EE bit for EL2
diff --git a/arch/arm64/mm/copypage.c b/arch/arm64/mm/copypage.c
index 9aecbace4128..13bbc3be6f5a 100644
--- a/arch/arm64/mm/copypage.c
+++ b/arch/arm64/mm/copypage.c
@@ -27,8 +27,10 @@ void __cpu_copy_user_page(void *kto, const void *kfrom, unsigned long vaddr)
copy_page(kto, kfrom);
__flush_dcache_area(kto, PAGE_SIZE);
}
+EXPORT_SYMBOL_GPL(__cpu_copy_user_page);
void __cpu_clear_user_page(void *kaddr, unsigned long vaddr)
{
clear_page(kaddr);
}
+EXPORT_SYMBOL_GPL(__cpu_clear_user_page);
diff --git a/arch/arm64/mm/flush.c b/arch/arm64/mm/flush.c
index e4193e3adc7f..0d64089d28b5 100644
--- a/arch/arm64/mm/flush.c
+++ b/arch/arm64/mm/flush.c
@@ -79,7 +79,8 @@ void __sync_icache_dcache(pte_t pte, unsigned long addr)
return;
if (!test_and_set_bit(PG_dcache_clean, &page->flags)) {
- __flush_dcache_area(page_address(page), PAGE_SIZE);
+ __flush_dcache_area(page_address(page),
+ PAGE_SIZE << compound_order(page));
__flush_icache_all();
} else if (icache_is_aivivt()) {
__flush_icache_all();