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-rw-r--r--arch/arm/include/asm/assembler.h12
-rw-r--r--arch/arm/include/asm/cacheflush.h38
-rw-r--r--arch/arm/include/asm/clkdev.h1
-rw-r--r--arch/arm/include/asm/futex.h16
-rw-r--r--arch/arm/include/asm/highmem.h15
-rw-r--r--arch/arm/include/asm/irq.h1
-rw-r--r--arch/arm/include/asm/kmap_types.h1
-rw-r--r--arch/arm/include/asm/outercache.h75
-rw-r--r--arch/arm/include/asm/system.h16
-rw-r--r--arch/arm/include/asm/uaccess.h40
-rw-r--r--arch/arm/include/asm/ucontext.h23
-rw-r--r--arch/arm/include/asm/user.h12
12 files changed, 159 insertions, 91 deletions
diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index 00f46d9ce29..6e8f05c8a1c 100644
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -149,10 +149,10 @@
#define USER(x...) \
9999: x; \
- .section __ex_table,"a"; \
+ .pushsection __ex_table,"a"; \
.align 3; \
.long 9999b,9001f; \
- .previous
+ .popsection
/*
* SMP data memory barrier
@@ -193,10 +193,10 @@
.error "Unsupported inc macro argument"
.endif
- .section __ex_table,"a"
+ .pushsection __ex_table,"a"
.align 3
.long 9999b, \abort
- .previous
+ .popsection
.endm
.macro usracc, instr, reg, ptr, inc, cond, rept, abort
@@ -234,10 +234,10 @@
.error "Unsupported inc macro argument"
.endif
- .section __ex_table,"a"
+ .pushsection __ex_table,"a"
.align 3
.long 9999b, \abort
- .previous
+ .popsection
.endr
.endm
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 72da7e045c6..0d08d4170b6 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -15,6 +15,7 @@
#include <asm/glue.h>
#include <asm/shmparam.h>
#include <asm/cachetype.h>
+#include <asm/outercache.h>
#define CACHE_COLOUR(vaddr) ((vaddr & (SHMLBA - 1)) >> PAGE_SHIFT)
@@ -219,12 +220,6 @@ struct cpu_cache_fns {
void (*dma_flush_range)(const void *, const void *);
};
-struct outer_cache_fns {
- void (*inv_range)(unsigned long, unsigned long);
- void (*clean_range)(unsigned long, unsigned long);
- void (*flush_range)(unsigned long, unsigned long);
-};
-
/*
* Select the calling method
*/
@@ -281,37 +276,6 @@ extern void dmac_flush_range(const void *, const void *);
#endif
-#ifdef CONFIG_OUTER_CACHE
-
-extern struct outer_cache_fns outer_cache;
-
-static inline void outer_inv_range(unsigned long start, unsigned long end)
-{
- if (outer_cache.inv_range)
- outer_cache.inv_range(start, end);
-}
-static inline void outer_clean_range(unsigned long start, unsigned long end)
-{
- if (outer_cache.clean_range)
- outer_cache.clean_range(start, end);
-}
-static inline void outer_flush_range(unsigned long start, unsigned long end)
-{
- if (outer_cache.flush_range)
- outer_cache.flush_range(start, end);
-}
-
-#else
-
-static inline void outer_inv_range(unsigned long start, unsigned long end)
-{ }
-static inline void outer_clean_range(unsigned long start, unsigned long end)
-{ }
-static inline void outer_flush_range(unsigned long start, unsigned long end)
-{ }
-
-#endif
-
/*
* Copy user data from/to a page which is mapped into a different
* processes address space. Really, we want to allow our "user
diff --git a/arch/arm/include/asm/clkdev.h b/arch/arm/include/asm/clkdev.h
index 7a0690da5e6..b56c1389b6f 100644
--- a/arch/arm/include/asm/clkdev.h
+++ b/arch/arm/include/asm/clkdev.h
@@ -13,6 +13,7 @@
#define __ASM_CLKDEV_H
struct clk;
+struct device;
struct clk_lookup {
struct list_head node;
diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h
index bfcc15929a7..540a044153a 100644
--- a/arch/arm/include/asm/futex.h
+++ b/arch/arm/include/asm/futex.h
@@ -21,14 +21,14 @@
"2: strt %0, [%2]\n" \
" mov %0, #0\n" \
"3:\n" \
- " .section __ex_table,\"a\"\n" \
+ " .pushsection __ex_table,\"a\"\n" \
" .align 3\n" \
" .long 1b, 4f, 2b, 4f\n" \
- " .previous\n" \
- " .section .fixup,\"ax\"\n" \
+ " .popsection\n" \
+ " .pushsection .fixup,\"ax\"\n" \
"4: mov %0, %4\n" \
" b 3b\n" \
- " .previous" \
+ " .popsection" \
: "=&r" (ret), "=&r" (oldval) \
: "r" (uaddr), "r" (oparg), "Ir" (-EFAULT) \
: "cc", "memory")
@@ -102,14 +102,14 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
" it eq @ explicit IT needed for the 2b label\n"
"2: streqt %2, [%3]\n"
"3:\n"
- " .section __ex_table,\"a\"\n"
+ " .pushsection __ex_table,\"a\"\n"
" .align 3\n"
" .long 1b, 4f, 2b, 4f\n"
- " .previous\n"
- " .section .fixup,\"ax\"\n"
+ " .popsection\n"
+ " .pushsection .fixup,\"ax\"\n"
"4: mov %0, %4\n"
" b 3b\n"
- " .previous"
+ " .popsection"
: "=&r" (val)
: "r" (oldval), "r" (newval), "r" (uaddr), "Ir" (-EFAULT)
: "cc", "memory");
diff --git a/arch/arm/include/asm/highmem.h b/arch/arm/include/asm/highmem.h
index 7f36d00600b..feb988a7ec3 100644
--- a/arch/arm/include/asm/highmem.h
+++ b/arch/arm/include/asm/highmem.h
@@ -11,7 +11,11 @@
#define kmap_prot PAGE_KERNEL
-#define flush_cache_kmaps() flush_cache_all()
+#define flush_cache_kmaps() \
+ do { \
+ if (cache_is_vivt()) \
+ flush_cache_all(); \
+ } while (0)
extern pte_t *pkmap_page_table;
@@ -21,11 +25,20 @@ extern void *kmap_high(struct page *page);
extern void *kmap_high_get(struct page *page);
extern void kunmap_high(struct page *page);
+extern void *kmap_high_l1_vipt(struct page *page, pte_t *saved_pte);
+extern void kunmap_high_l1_vipt(struct page *page, pte_t saved_pte);
+
+/*
+ * The following functions are already defined by <linux/highmem.h>
+ * when CONFIG_HIGHMEM is not set.
+ */
+#ifdef CONFIG_HIGHMEM
extern void *kmap(struct page *page);
extern void kunmap(struct page *page);
extern void *kmap_atomic(struct page *page, enum km_type type);
extern void kunmap_atomic(void *kvaddr, enum km_type type);
extern void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
extern struct page *kmap_atomic_to_page(const void *ptr);
+#endif
#endif
diff --git a/arch/arm/include/asm/irq.h b/arch/arm/include/asm/irq.h
index 328f14a8b79..237282f7c76 100644
--- a/arch/arm/include/asm/irq.h
+++ b/arch/arm/include/asm/irq.h
@@ -17,6 +17,7 @@
#ifndef __ASSEMBLY__
struct irqaction;
+struct pt_regs;
extern void migrate_irqs(void);
extern void asm_do_IRQ(unsigned int, struct pt_regs *);
diff --git a/arch/arm/include/asm/kmap_types.h b/arch/arm/include/asm/kmap_types.h
index c019949a518..c4b2ea3fbe4 100644
--- a/arch/arm/include/asm/kmap_types.h
+++ b/arch/arm/include/asm/kmap_types.h
@@ -18,6 +18,7 @@ enum km_type {
KM_IRQ1,
KM_SOFTIRQ0,
KM_SOFTIRQ1,
+ KM_L1_CACHE,
KM_L2_CACHE,
KM_TYPE_NR
};
diff --git a/arch/arm/include/asm/outercache.h b/arch/arm/include/asm/outercache.h
new file mode 100644
index 00000000000..25f76bae57a
--- /dev/null
+++ b/arch/arm/include/asm/outercache.h
@@ -0,0 +1,75 @@
+/*
+ * arch/arm/include/asm/outercache.h
+ *
+ * Copyright (C) 2010 ARM Ltd.
+ * Written by Catalin Marinas <catalin.marinas@arm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef __ASM_OUTERCACHE_H
+#define __ASM_OUTERCACHE_H
+
+struct outer_cache_fns {
+ void (*inv_range)(unsigned long, unsigned long);
+ void (*clean_range)(unsigned long, unsigned long);
+ void (*flush_range)(unsigned long, unsigned long);
+#ifdef CONFIG_OUTER_CACHE_SYNC
+ void (*sync)(void);
+#endif
+};
+
+#ifdef CONFIG_OUTER_CACHE
+
+extern struct outer_cache_fns outer_cache;
+
+static inline void outer_inv_range(unsigned long start, unsigned long end)
+{
+ if (outer_cache.inv_range)
+ outer_cache.inv_range(start, end);
+}
+static inline void outer_clean_range(unsigned long start, unsigned long end)
+{
+ if (outer_cache.clean_range)
+ outer_cache.clean_range(start, end);
+}
+static inline void outer_flush_range(unsigned long start, unsigned long end)
+{
+ if (outer_cache.flush_range)
+ outer_cache.flush_range(start, end);
+}
+
+#else
+
+static inline void outer_inv_range(unsigned long start, unsigned long end)
+{ }
+static inline void outer_clean_range(unsigned long start, unsigned long end)
+{ }
+static inline void outer_flush_range(unsigned long start, unsigned long end)
+{ }
+
+#endif
+
+#ifdef CONFIG_OUTER_CACHE_SYNC
+static inline void outer_sync(void)
+{
+ if (outer_cache.sync)
+ outer_cache.sync();
+}
+#else
+static inline void outer_sync(void)
+{ }
+#endif
+
+#endif /* __ASM_OUTERCACHE_H */
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index ca88e6a8470..4ace45ec3ef 100644
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -60,6 +60,8 @@
#include <linux/linkage.h>
#include <linux/irqflags.h>
+#include <asm/outercache.h>
+
#define __exception __attribute__((section(".exception.text")))
struct thread_info;
@@ -137,10 +139,12 @@ extern unsigned int user_debug;
#define dmb() __asm__ __volatile__ ("" : : : "memory")
#endif
-#if __LINUX_ARM_ARCH__ >= 7 || defined(CONFIG_SMP)
-#define mb() dmb()
+#ifdef CONFIG_ARCH_HAS_BARRIERS
+#include <mach/barriers.h>
+#elif __LINUX_ARM_ARCH__ >= 7 || defined(CONFIG_SMP)
+#define mb() do { dsb(); outer_sync(); } while (0)
#define rmb() dmb()
-#define wmb() dmb()
+#define wmb() mb()
#else
#define mb() do { if (arch_is_coherent()) dmb(); else barrier(); } while (0)
#define rmb() do { if (arch_is_coherent()) dmb(); else barrier(); } while (0)
@@ -152,9 +156,9 @@ extern unsigned int user_debug;
#define smp_rmb() barrier()
#define smp_wmb() barrier()
#else
-#define smp_mb() mb()
-#define smp_rmb() rmb()
-#define smp_wmb() wmb()
+#define smp_mb() dmb()
+#define smp_rmb() dmb()
+#define smp_wmb() dmb()
#endif
#define read_barrier_depends() do { } while(0)
diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
index 1d6bd40a432..33e4a48fe10 100644
--- a/arch/arm/include/asm/uaccess.h
+++ b/arch/arm/include/asm/uaccess.h
@@ -229,16 +229,16 @@ do { \
__asm__ __volatile__( \
"1: ldrbt %1,[%2]\n" \
"2:\n" \
- " .section .fixup,\"ax\"\n" \
+ " .pushsection .fixup,\"ax\"\n" \
" .align 2\n" \
"3: mov %0, %3\n" \
" mov %1, #0\n" \
" b 2b\n" \
- " .previous\n" \
- " .section __ex_table,\"a\"\n" \
+ " .popsection\n" \
+ " .pushsection __ex_table,\"a\"\n" \
" .align 3\n" \
" .long 1b, 3b\n" \
- " .previous" \
+ " .popsection" \
: "+r" (err), "=&r" (x) \
: "r" (addr), "i" (-EFAULT) \
: "cc")
@@ -265,16 +265,16 @@ do { \
__asm__ __volatile__( \
"1: ldrt %1,[%2]\n" \
"2:\n" \
- " .section .fixup,\"ax\"\n" \
+ " .pushsection .fixup,\"ax\"\n" \
" .align 2\n" \
"3: mov %0, %3\n" \
" mov %1, #0\n" \
" b 2b\n" \
- " .previous\n" \
- " .section __ex_table,\"a\"\n" \
+ " .popsection\n" \
+ " .pushsection __ex_table,\"a\"\n" \
" .align 3\n" \
" .long 1b, 3b\n" \
- " .previous" \
+ " .popsection" \
: "+r" (err), "=&r" (x) \
: "r" (addr), "i" (-EFAULT) \
: "cc")
@@ -310,15 +310,15 @@ do { \
__asm__ __volatile__( \
"1: strbt %1,[%2]\n" \
"2:\n" \
- " .section .fixup,\"ax\"\n" \
+ " .pushsection .fixup,\"ax\"\n" \
" .align 2\n" \
"3: mov %0, %3\n" \
" b 2b\n" \
- " .previous\n" \
- " .section __ex_table,\"a\"\n" \
+ " .popsection\n" \
+ " .pushsection __ex_table,\"a\"\n" \
" .align 3\n" \
" .long 1b, 3b\n" \
- " .previous" \
+ " .popsection" \
: "+r" (err) \
: "r" (x), "r" (__pu_addr), "i" (-EFAULT) \
: "cc")
@@ -343,15 +343,15 @@ do { \
__asm__ __volatile__( \
"1: strt %1,[%2]\n" \
"2:\n" \
- " .section .fixup,\"ax\"\n" \
+ " .pushsection .fixup,\"ax\"\n" \
" .align 2\n" \
"3: mov %0, %3\n" \
" b 2b\n" \
- " .previous\n" \
- " .section __ex_table,\"a\"\n" \
+ " .popsection\n" \
+ " .pushsection __ex_table,\"a\"\n" \
" .align 3\n" \
" .long 1b, 3b\n" \
- " .previous" \
+ " .popsection" \
: "+r" (err) \
: "r" (x), "r" (__pu_addr), "i" (-EFAULT) \
: "cc")
@@ -371,16 +371,16 @@ do { \
THUMB( "1: strt " __reg_oper1 ", [%1]\n" ) \
THUMB( "2: strt " __reg_oper0 ", [%1, #4]\n" ) \
"3:\n" \
- " .section .fixup,\"ax\"\n" \
+ " .pushsection .fixup,\"ax\"\n" \
" .align 2\n" \
"4: mov %0, %3\n" \
" b 3b\n" \
- " .previous\n" \
- " .section __ex_table,\"a\"\n" \
+ " .popsection\n" \
+ " .pushsection __ex_table,\"a\"\n" \
" .align 3\n" \
" .long 1b, 4b\n" \
" .long 2b, 4b\n" \
- " .previous" \
+ " .popsection" \
: "+r" (err), "+r" (__pu_addr) \
: "r" (x), "i" (-EFAULT) \
: "cc")
diff --git a/arch/arm/include/asm/ucontext.h b/arch/arm/include/asm/ucontext.h
index bf65e9f4525..47f023aa849 100644
--- a/arch/arm/include/asm/ucontext.h
+++ b/arch/arm/include/asm/ucontext.h
@@ -59,23 +59,22 @@ struct iwmmxt_sigframe {
#endif /* CONFIG_IWMMXT */
#ifdef CONFIG_VFP
-#if __LINUX_ARM_ARCH__ < 6
-/* For ARM pre-v6, we use fstmiax and fldmiax. This adds one extra
- * word after the registers, and a word of padding at the end for
- * alignment. */
#define VFP_MAGIC 0x56465001
-#define VFP_STORAGE_SIZE 152
-#else
-#define VFP_MAGIC 0x56465002
-#define VFP_STORAGE_SIZE 144
-#endif
struct vfp_sigframe
{
unsigned long magic;
unsigned long size;
- union vfp_state storage;
-};
+ struct user_vfp ufp;
+ struct user_vfp_exc ufp_exc;
+} __attribute__((__aligned__(8)));
+
+/*
+ * 8 byte for magic and size, 264 byte for ufp, 12 bytes for ufp_exc,
+ * 4 bytes padding.
+ */
+#define VFP_STORAGE_SIZE sizeof(struct vfp_sigframe)
+
#endif /* CONFIG_VFP */
/*
@@ -91,7 +90,7 @@ struct aux_sigframe {
#ifdef CONFIG_IWMMXT
struct iwmmxt_sigframe iwmmxt;
#endif
-#if 0 && defined CONFIG_VFP /* Not yet saved. */
+#ifdef CONFIG_VFP
struct vfp_sigframe vfp;
#endif
/* Something that isn't a valid magic number for any coprocessor. */
diff --git a/arch/arm/include/asm/user.h b/arch/arm/include/asm/user.h
index df95e050f9d..05ac4b06876 100644
--- a/arch/arm/include/asm/user.h
+++ b/arch/arm/include/asm/user.h
@@ -83,11 +83,21 @@ struct user{
/*
* User specific VFP registers. If only VFPv2 is present, registers 16 to 31
- * are ignored by the ptrace system call.
+ * are ignored by the ptrace system call and the signal handler.
*/
struct user_vfp {
unsigned long long fpregs[32];
unsigned long fpscr;
};
+/*
+ * VFP exception registers exposed to user space during signal delivery.
+ * Fields not relavant to the current VFP architecture are ignored.
+ */
+struct user_vfp_exc {
+ unsigned long fpexc;
+ unsigned long fpinst;
+ unsigned long fpinst2;
+};
+
#endif /* _ARM_USER_H */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-18 09:28:31 +0000