diff options
Diffstat (limited to 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/audit_change_attr.h | 4 | ||||
| -rw-r--r-- | include/asm-generic/audit_write.h | 6 | ||||
| -rw-r--r-- | include/asm-generic/barrier.h | 55 | ||||
| -rw-r--r-- | include/asm-generic/fixmap.h | 97 | ||||
| -rw-r--r-- | include/asm-generic/int-l64.h | 49 | ||||
| -rw-r--r-- | include/asm-generic/uaccess.h | 2 |
6 files changed, 150 insertions, 63 deletions
diff --git a/include/asm-generic/audit_change_attr.h b/include/asm-generic/audit_change_attr.h index 89b73e5d0fd0..a1865537339b 100644 --- a/include/asm-generic/audit_change_attr.h +++ b/include/asm-generic/audit_change_attr.h @@ -4,9 +4,11 @@ __NR_chmod, __NR_fchmod, #ifdef __NR_chown __NR_chown, -__NR_fchown, __NR_lchown, #endif +#ifdef __NR_fchown +__NR_fchown, +#endif __NR_setxattr, __NR_lsetxattr, __NR_fsetxattr, diff --git a/include/asm-generic/audit_write.h b/include/asm-generic/audit_write.h index e7020c57b13b..274575d7129f 100644 --- a/include/asm-generic/audit_write.h +++ b/include/asm-generic/audit_write.h @@ -10,6 +10,12 @@ __NR_truncate, #ifdef __NR_truncate64 __NR_truncate64, #endif +#ifdef __NR_ftruncate +__NR_ftruncate, +#endif +#ifdef __NR_ftruncate64 +__NR_ftruncate64, +#endif #ifdef __NR_bind __NR_bind, /* bind can affect fs object only in one way... */ #endif diff --git a/include/asm-generic/barrier.h b/include/asm-generic/barrier.h index 639d7a4d033b..6f692f8ac664 100644 --- a/include/asm-generic/barrier.h +++ b/include/asm-generic/barrier.h @@ -1,4 +1,5 @@ -/* Generic barrier definitions, based on MN10300 definitions. +/* + * Generic barrier definitions, originally based on MN10300 definitions. * * It should be possible to use these on really simple architectures, * but it serves more as a starting point for new ports. @@ -16,35 +17,65 @@ #ifndef __ASSEMBLY__ -#define nop() asm volatile ("nop") +#include <linux/compiler.h> + +#ifndef nop +#define nop() asm volatile ("nop") +#endif /* - * Force strict CPU ordering. - * And yes, this is required on UP too when we're talking - * to devices. + * Force strict CPU ordering. And yes, this is required on UP too when we're + * talking to devices. * - * This implementation only contains a compiler barrier. + * Fall back to compiler barriers if nothing better is provided. */ -#define mb() asm volatile ("": : :"memory") +#ifndef mb +#define mb() barrier() +#endif + +#ifndef rmb #define rmb() mb() -#define wmb() asm volatile ("": : :"memory") +#endif + +#ifndef wmb +#define wmb() mb() +#endif + +#ifndef read_barrier_depends +#define read_barrier_depends() do { } while (0) +#endif #ifdef CONFIG_SMP #define smp_mb() mb() #define smp_rmb() rmb() #define smp_wmb() wmb() +#define smp_read_barrier_depends() read_barrier_depends() #else #define smp_mb() barrier() #define smp_rmb() barrier() #define smp_wmb() barrier() +#define smp_read_barrier_depends() do { } while (0) +#endif + +#ifndef set_mb +#define set_mb(var, value) do { (var) = (value); mb(); } while (0) #endif -#define set_mb(var, value) do { var = value; mb(); } while (0) -#define set_wmb(var, value) do { var = value; wmb(); } while (0) +#define smp_store_release(p, v) \ +do { \ + compiletime_assert_atomic_type(*p); \ + smp_mb(); \ + ACCESS_ONCE(*p) = (v); \ +} while (0) -#define read_barrier_depends() do {} while (0) -#define smp_read_barrier_depends() do {} while (0) +#define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1 = ACCESS_ONCE(*p); \ + compiletime_assert_atomic_type(*p); \ + smp_mb(); \ + ___p1; \ +}) #endif /* !__ASSEMBLY__ */ #endif /* __ASM_GENERIC_BARRIER_H */ diff --git a/include/asm-generic/fixmap.h b/include/asm-generic/fixmap.h new file mode 100644 index 000000000000..5a64ca4621f3 --- /dev/null +++ b/include/asm-generic/fixmap.h @@ -0,0 +1,97 @@ +/* + * fixmap.h: compile-time virtual memory allocation + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1998 Ingo Molnar + * + * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999 + * x86_32 and x86_64 integration by Gustavo F. Padovan, February 2009 + * Break out common bits to asm-generic by Mark Salter, November 2013 + */ + +#ifndef __ASM_GENERIC_FIXMAP_H +#define __ASM_GENERIC_FIXMAP_H + +#include <linux/bug.h> + +#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT)) +#define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT) + +#ifndef __ASSEMBLY__ +/* + * 'index to address' translation. If anyone tries to use the idx + * directly without translation, we catch the bug with a NULL-deference + * kernel oops. Illegal ranges of incoming indices are caught too. + */ +static __always_inline unsigned long fix_to_virt(const unsigned int idx) +{ + BUILD_BUG_ON(idx >= __end_of_fixed_addresses); + return __fix_to_virt(idx); +} + +static inline unsigned long virt_to_fix(const unsigned long vaddr) +{ + BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START); + return __virt_to_fix(vaddr); +} + +/* + * Provide some reasonable defaults for page flags. + * Not all architectures use all of these different types and some + * architectures use different names. + */ +#ifndef FIXMAP_PAGE_NORMAL +#define FIXMAP_PAGE_NORMAL PAGE_KERNEL +#endif +#ifndef FIXMAP_PAGE_NOCACHE +#define FIXMAP_PAGE_NOCACHE PAGE_KERNEL_NOCACHE +#endif +#ifndef FIXMAP_PAGE_IO +#define FIXMAP_PAGE_IO PAGE_KERNEL_IO +#endif +#ifndef FIXMAP_PAGE_CLEAR +#define FIXMAP_PAGE_CLEAR __pgprot(0) +#endif + +#ifndef set_fixmap +#define set_fixmap(idx, phys) \ + __set_fixmap(idx, phys, FIXMAP_PAGE_NORMAL) +#endif + +#ifndef clear_fixmap +#define clear_fixmap(idx) \ + __set_fixmap(idx, 0, FIXMAP_PAGE_CLEAR) +#endif + +/* Return a pointer with offset calculated */ +#define __set_fixmap_offset(idx, phys, flags) \ +({ \ + unsigned long addr; \ + __set_fixmap(idx, phys, flags); \ + addr = fix_to_virt(idx) + ((phys) & (PAGE_SIZE - 1)); \ + addr; \ +}) + +#define set_fixmap_offset(idx, phys) \ + __set_fixmap_offset(idx, phys, FIXMAP_PAGE_NORMAL) + +/* + * Some hardware wants to get fixmapped without caching. + */ +#define set_fixmap_nocache(idx, phys) \ + __set_fixmap(idx, phys, FIXMAP_PAGE_NOCACHE) + +#define set_fixmap_offset_nocache(idx, phys) \ + __set_fixmap_offset(idx, phys, FIXMAP_PAGE_NOCACHE) + +/* + * Some fixmaps are for IO + */ +#define set_fixmap_io(idx, phys) \ + __set_fixmap(idx, phys, FIXMAP_PAGE_IO) + +#endif /* __ASSEMBLY__ */ +#endif /* __ASM_GENERIC_FIXMAP_H */ diff --git a/include/asm-generic/int-l64.h b/include/asm-generic/int-l64.h deleted file mode 100644 index 27d4ec0dfce0..000000000000 --- a/include/asm-generic/int-l64.h +++ /dev/null @@ -1,49 +0,0 @@ -/* - * asm-generic/int-l64.h - * - * Integer declarations for architectures which use "long" - * for 64-bit types. - */ -#ifndef _ASM_GENERIC_INT_L64_H -#define _ASM_GENERIC_INT_L64_H - -#include <uapi/asm-generic/int-l64.h> - - -#ifndef __ASSEMBLY__ - -typedef signed char s8; -typedef unsigned char u8; - -typedef signed short s16; -typedef unsigned short u16; - -typedef signed int s32; -typedef unsigned int u32; - -typedef signed long s64; -typedef unsigned long u64; - -#define S8_C(x) x -#define U8_C(x) x ## U -#define S16_C(x) x -#define U16_C(x) x ## U -#define S32_C(x) x -#define U32_C(x) x ## U -#define S64_C(x) x ## L -#define U64_C(x) x ## UL - -#else /* __ASSEMBLY__ */ - -#define S8_C(x) x -#define U8_C(x) x -#define S16_C(x) x -#define U16_C(x) x -#define S32_C(x) x -#define U32_C(x) x -#define S64_C(x) x -#define U64_C(x) x - -#endif /* __ASSEMBLY__ */ - -#endif /* _ASM_GENERIC_INT_L64_H */ diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h index dc1269c74a52..72d8803832ff 100644 --- a/include/asm-generic/uaccess.h +++ b/include/asm-generic/uaccess.h @@ -3,7 +3,7 @@ /* * User space memory access functions, these should work - * on a ny machine that has kernel and user data in the same + * on any machine that has kernel and user data in the same * address space, e.g. all NOMMU machines. */ #include <linux/sched.h> |