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authorLinus Torvalds <torvalds@linux-foundation.org>2014-01-23 22:11:50 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-23 22:11:50 -0500
commit3aacd625f20129f5a41ea3ff3b5353b0e4dabd01 (patch)
tree7cf4ea65397f80098b30494df31cfc8f5fa26d63 /include/asm-generic
parent7e21774db5cc9cf8fe93a64a2f0c6cf47db8ab24 (diff)
parent2a1d689c9ba42a6066540fb221b6ecbd6298b728 (diff)
Merge branch 'akpm' (incoming from Andrew)
Merge second patch-bomb from Andrew Morton: - various misc bits - the rest of MM - add generic fixmap.h, use it - backlight updates - dynamic_debug updates - printk() updates - checkpatch updates - binfmt_elf - ramfs - init/ - autofs4 - drivers/rtc - nilfs - hfsplus - Documentation/ - coredump - procfs - fork - exec - kexec - kdump - partitions - rapidio - rbtree - userns - memstick - w1 - decompressors * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (197 commits) lib/decompress_unlz4.c: always set an error return code on failures romfs: fix returm err while getting inode in fill_super drivers/w1/masters/w1-gpio.c: add strong pullup emulation drivers/memstick/host/rtsx_pci_ms.c: fix ms card data transfer bug userns: relax the posix_acl_valid() checks arch/sh/kernel/dwarf.c: use rbtree postorder iteration helper instead of solution using repeated rb_erase() fs-ext3-use-rbtree-postorder-iteration-helper-instead-of-opencoding-fix fs/ext3: use rbtree postorder iteration helper instead of opencoding fs/jffs2: use rbtree postorder iteration helper instead of opencoding fs/ext4: use rbtree postorder iteration helper instead of opencoding fs/ubifs: use rbtree postorder iteration helper instead of opencoding net/netfilter/ipset/ip_set_hash_netiface.c: use rbtree postorder iteration instead of opencoding rbtree/test: test rbtree_postorder_for_each_entry_safe() rbtree/test: move rb_node to the middle of the test struct rapidio: add modular rapidio core build into powerpc and mips branches partitions/efi: complete documentation of gpt kernel param purpose kdump: add /sys/kernel/vmcoreinfo ABI documentation kdump: fix exported size of vmcoreinfo note kexec: add sysctl to disable kexec_load fs/exec.c: call arch_pick_mmap_layout() only once ...
Diffstat (limited to 'include/asm-generic')
-rw-r--r--include/asm-generic/fixmap.h97
-rw-r--r--include/asm-generic/int-l64.h49
2 files changed, 97 insertions, 49 deletions
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 @@
1/*
2 * fixmap.h: compile-time virtual memory allocation
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 *
8 * Copyright (C) 1998 Ingo Molnar
9 *
10 * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999
11 * x86_32 and x86_64 integration by Gustavo F. Padovan, February 2009
12 * Break out common bits to asm-generic by Mark Salter, November 2013
13 */
14
15#ifndef __ASM_GENERIC_FIXMAP_H
16#define __ASM_GENERIC_FIXMAP_H
17
18#include <linux/bug.h>
19
20#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
21#define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)
22
23#ifndef __ASSEMBLY__
24/*
25 * 'index to address' translation. If anyone tries to use the idx
26 * directly without translation, we catch the bug with a NULL-deference
27 * kernel oops. Illegal ranges of incoming indices are caught too.
28 */
29static __always_inline unsigned long fix_to_virt(const unsigned int idx)
30{
31 BUILD_BUG_ON(idx >= __end_of_fixed_addresses);
32 return __fix_to_virt(idx);
33}
34
35static inline unsigned long virt_to_fix(const unsigned long vaddr)
36{
37 BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);
38 return __virt_to_fix(vaddr);
39}
40
41/*
42 * Provide some reasonable defaults for page flags.
43 * Not all architectures use all of these different types and some
44 * architectures use different names.
45 */
46#ifndef FIXMAP_PAGE_NORMAL
47#define FIXMAP_PAGE_NORMAL PAGE_KERNEL
48#endif
49#ifndef FIXMAP_PAGE_NOCACHE
50#define FIXMAP_PAGE_NOCACHE PAGE_KERNEL_NOCACHE
51#endif
52#ifndef FIXMAP_PAGE_IO
53#define FIXMAP_PAGE_IO PAGE_KERNEL_IO
54#endif
55#ifndef FIXMAP_PAGE_CLEAR
56#define FIXMAP_PAGE_CLEAR __pgprot(0)
57#endif
58
59#ifndef set_fixmap
60#define set_fixmap(idx, phys) \
61 __set_fixmap(idx, phys, FIXMAP_PAGE_NORMAL)
62#endif
63
64#ifndef clear_fixmap
65#define clear_fixmap(idx) \
66 __set_fixmap(idx, 0, FIXMAP_PAGE_CLEAR)
67#endif
68
69/* Return a pointer with offset calculated */
70#define __set_fixmap_offset(idx, phys, flags) \
71({ \
72 unsigned long addr; \
73 __set_fixmap(idx, phys, flags); \
74 addr = fix_to_virt(idx) + ((phys) & (PAGE_SIZE - 1)); \
75 addr; \
76})
77
78#define set_fixmap_offset(idx, phys) \
79 __set_fixmap_offset(idx, phys, FIXMAP_PAGE_NORMAL)
80
81/*
82 * Some hardware wants to get fixmapped without caching.
83 */
84#define set_fixmap_nocache(idx, phys) \
85 __set_fixmap(idx, phys, FIXMAP_PAGE_NOCACHE)
86
87#define set_fixmap_offset_nocache(idx, phys) \
88 __set_fixmap_offset(idx, phys, FIXMAP_PAGE_NOCACHE)
89
90/*
91 * Some fixmaps are for IO
92 */
93#define set_fixmap_io(idx, phys) \
94 __set_fixmap(idx, phys, FIXMAP_PAGE_IO)
95
96#endif /* __ASSEMBLY__ */
97#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 @@
1/*
2 * asm-generic/int-l64.h
3 *
4 * Integer declarations for architectures which use "long"
5 * for 64-bit types.
6 */
7#ifndef _ASM_GENERIC_INT_L64_H
8#define _ASM_GENERIC_INT_L64_H
9
10#include <uapi/asm-generic/int-l64.h>
11
12
13#ifndef __ASSEMBLY__
14
15typedef signed char s8;
16typedef unsigned char u8;
17
18typedef signed short s16;
19typedef unsigned short u16;
20
21typedef signed int s32;
22typedef unsigned int u32;
23
24typedef signed long s64;
25typedef unsigned long u64;
26
27#define S8_C(x) x
28#define U8_C(x) x ## U
29#define S16_C(x) x
30#define U16_C(x) x ## U
31#define S32_C(x) x
32#define U32_C(x) x ## U
33#define S64_C(x) x ## L
34#define U64_C(x) x ## UL
35
36#else /* __ASSEMBLY__ */
37
38#define S8_C(x) x
39#define U8_C(x) x
40#define S16_C(x) x
41#define U16_C(x) x
42#define S32_C(x) x
43#define U32_C(x) x
44#define S64_C(x) x
45#define U64_C(x) x
46
47#endif /* __ASSEMBLY__ */
48
49#endif /* _ASM_GENERIC_INT_L64_H */