Re: [PATCHv5 3/4] tracing: Add register read/write tracing support

From: kernel test robot
Date: Mon Dec 06 2021 - 11:39:20 EST

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Hi Sai,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on arm64/for-next/core]
[also build test ERROR on rostedt-trace/for-next arnd-asm-generic/master v5.16-rc4 next-20211206]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url: https://github.com/0day-ci/linux/commits/Sai-Prakash-Ranjan/tracing-rwmmio-arm64-Add-support-to-trace-register-reads-writes/20211206-163212
base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
config: parisc-allyesconfig (https://download.01.org/0day-ci/archive/20211207/202112070036.AVohI56z-lkp@xxxxxxxxx/config)
compiler: hppa-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/0day-ci/linux/commit/1b255eef866824f8925cc46d6b127d641f1c8982
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Sai-Prakash-Ranjan/tracing-rwmmio-arm64-Add-support-to-trace-register-reads-writes/20211206-163212
git checkout 1b255eef866824f8925cc46d6b127d641f1c8982
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=parisc SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

In file included from kernel/trace/trace_readwrite.c:10:
>> include/asm-generic/io.h:74:21: error: redefinition of '__raw_readb'
74 | #define __raw_readb __raw_readb
| ^~~~~~~~~~~
include/asm-generic/io.h:75:18: note: in expansion of macro '__raw_readb'
75 | static inline u8 __raw_readb(const volatile void __iomem *addr)
| ^~~~~~~~~~~
In file included from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
arch/parisc/include/asm/io.h:136:29: note: previous definition of '__raw_readb' with type 'unsigned char(const volatile void *)'
136 | static inline unsigned char __raw_readb(const volatile void __iomem *addr)
| ^~~~~~~~~~~
In file included from kernel/trace/trace_readwrite.c:10:
>> include/asm-generic/io.h:82:21: error: redefinition of '__raw_readw'
82 | #define __raw_readw __raw_readw
| ^~~~~~~~~~~
include/asm-generic/io.h:83:19: note: in expansion of macro '__raw_readw'
83 | static inline u16 __raw_readw(const volatile void __iomem *addr)
| ^~~~~~~~~~~
In file included from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
arch/parisc/include/asm/io.h:140:30: note: previous definition of '__raw_readw' with type 'short unsigned int(const volatile void *)'
140 | static inline unsigned short __raw_readw(const volatile void __iomem *addr)
| ^~~~~~~~~~~
In file included from kernel/trace/trace_readwrite.c:10:
>> include/asm-generic/io.h:90:21: error: redefinition of '__raw_readl'
90 | #define __raw_readl __raw_readl
| ^~~~~~~~~~~
include/asm-generic/io.h:91:19: note: in expansion of macro '__raw_readl'
91 | static inline u32 __raw_readl(const volatile void __iomem *addr)
| ^~~~~~~~~~~
In file included from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
arch/parisc/include/asm/io.h:144:28: note: previous definition of '__raw_readl' with type 'unsigned int(const volatile void *)'
144 | static inline unsigned int __raw_readl(const volatile void __iomem *addr)
| ^~~~~~~~~~~
In file included from kernel/trace/trace_readwrite.c:10:
>> include/asm-generic/io.h:108:22: error: redefinition of '__raw_writeb'
108 | #define __raw_writeb __raw_writeb
| ^~~~~~~~~~~~
include/asm-generic/io.h:109:20: note: in expansion of macro '__raw_writeb'
109 | static inline void __raw_writeb(u8 value, volatile void __iomem *addr)
| ^~~~~~~~~~~~
In file included from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
arch/parisc/include/asm/io.h:153:20: note: previous definition of '__raw_writeb' with type 'void(unsigned char, volatile void *)'
153 | static inline void __raw_writeb(unsigned char b, volatile void __iomem *addr)
| ^~~~~~~~~~~~
In file included from kernel/trace/trace_readwrite.c:10:
>> include/asm-generic/io.h:116:22: error: redefinition of '__raw_writew'
116 | #define __raw_writew __raw_writew
| ^~~~~~~~~~~~
include/asm-generic/io.h:117:20: note: in expansion of macro '__raw_writew'
117 | static inline void __raw_writew(u16 value, volatile void __iomem *addr)
| ^~~~~~~~~~~~
In file included from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
arch/parisc/include/asm/io.h:157:20: note: previous definition of '__raw_writew' with type 'void(short unsigned int, volatile void *)'
157 | static inline void __raw_writew(unsigned short b, volatile void __iomem *addr)
| ^~~~~~~~~~~~
In file included from kernel/trace/trace_readwrite.c:10:
>> include/asm-generic/io.h:124:22: error: redefinition of '__raw_writel'
124 | #define __raw_writel __raw_writel
| ^~~~~~~~~~~~
include/asm-generic/io.h:125:20: note: in expansion of macro '__raw_writel'
125 | static inline void __raw_writel(u32 value, volatile void __iomem *addr)
| ^~~~~~~~~~~~
In file included from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
arch/parisc/include/asm/io.h:161:20: note: previous definition of '__raw_writel' with type 'void(unsigned int, volatile void *)'
161 | static inline void __raw_writel(unsigned int b, volatile void __iomem *addr)
| ^~~~~~~~~~~~
In file included from kernel/trace/trace_readwrite.c:10:
include/asm-generic/io.h:606:14: error: conflicting types for 'insb'; have 'void(long unsigned int, void *, unsigned int)'
606 | #define insb insb
| ^~~~
include/asm-generic/io.h:607:20: note: in expansion of macro 'insb'
607 | static inline void insb(unsigned long addr, void *buffer, unsigned int count)
| ^~~~
In file included from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
arch/parisc/include/asm/io.h:284:13: note: previous declaration of 'insb' with type 'void(long unsigned int, void *, long unsigned int)'
284 | extern void insb (unsigned long port, void *dst, unsigned long count);
| ^~~~
In file included from kernel/trace/trace_readwrite.c:10:
include/asm-generic/io.h:614:14: error: conflicting types for 'insw'; have 'void(long unsigned int, void *, unsigned int)'
614 | #define insw insw
| ^~~~
include/asm-generic/io.h:615:20: note: in expansion of macro 'insw'
615 | static inline void insw(unsigned long addr, void *buffer, unsigned int count)
| ^~~~
In file included from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
arch/parisc/include/asm/io.h:285:13: note: previous declaration of 'insw' with type 'void(long unsigned int, void *, long unsigned int)'
285 | extern void insw (unsigned long port, void *dst, unsigned long count);
| ^~~~
In file included from kernel/trace/trace_readwrite.c:10:
include/asm-generic/io.h:622:14: error: conflicting types for 'insl'; have 'void(long unsigned int, void *, unsigned int)'
622 | #define insl insl
| ^~~~
include/asm-generic/io.h:623:20: note: in expansion of macro 'insl'
623 | static inline void insl(unsigned long addr, void *buffer, unsigned int count)
| ^~~~
In file included from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
arch/parisc/include/asm/io.h:286:13: note: previous declaration of 'insl' with type 'void(long unsigned int, void *, long unsigned int)'
286 | extern void insl (unsigned long port, void *dst, unsigned long count);
| ^~~~
In file included from kernel/trace/trace_readwrite.c:10:
include/asm-generic/io.h:630:15: error: conflicting types for 'outsb'; have 'void(long unsigned int, const void *, unsigned int)'
630 | #define outsb outsb
| ^~~~~
include/asm-generic/io.h:631:20: note: in expansion of macro 'outsb'
631 | static inline void outsb(unsigned long addr, const void *buffer,
| ^~~~~
In file included from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
arch/parisc/include/asm/io.h:287:13: note: previous declaration of 'outsb' with type 'void(long unsigned int, const void *, long unsigned int)'
287 | extern void outsb (unsigned long port, const void *src, unsigned long count);
| ^~~~~
In file included from kernel/trace/trace_readwrite.c:10:
include/asm-generic/io.h:639:15: error: conflicting types for 'outsw'; have 'void(long unsigned int, const void *, unsigned int)'
639 | #define outsw outsw
| ^~~~~
include/asm-generic/io.h:640:20: note: in expansion of macro 'outsw'
640 | static inline void outsw(unsigned long addr, const void *buffer,
| ^~~~~
In file included from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
--
from kernel/trace/trace_readwrite.c:8:
include/asm-generic/iomap.h:82:13: note: previous declaration of 'ioread8_rep' with type 'void(const void *, void *, long unsigned int)'
82 | extern void ioread8_rep(const void __iomem *port, void *buf, unsigned long count);
| ^~~~~~~~~~~
In file included from kernel/trace/trace_readwrite.c:10:
include/asm-generic/io.h:838:22: error: conflicting types for 'ioread16_rep'; have 'void(const volatile void *, void *, unsigned int)'
838 | #define ioread16_rep ioread16_rep
| ^~~~~~~~~~~~
include/asm-generic/io.h:839:20: note: in expansion of macro 'ioread16_rep'
839 | static inline void ioread16_rep(const volatile void __iomem *addr,
| ^~~~~~~~~~~~
In file included from arch/parisc/include/asm/io.h:311,
from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
include/asm-generic/iomap.h:83:13: note: previous declaration of 'ioread16_rep' with type 'void(const void *, void *, long unsigned int)'
83 | extern void ioread16_rep(const void __iomem *port, void *buf, unsigned long count);
| ^~~~~~~~~~~~
In file included from kernel/trace/trace_readwrite.c:10:
include/asm-generic/io.h:847:22: error: conflicting types for 'ioread32_rep'; have 'void(const volatile void *, void *, unsigned int)'
847 | #define ioread32_rep ioread32_rep
| ^~~~~~~~~~~~
include/asm-generic/io.h:848:20: note: in expansion of macro 'ioread32_rep'
848 | static inline void ioread32_rep(const volatile void __iomem *addr,
| ^~~~~~~~~~~~
In file included from arch/parisc/include/asm/io.h:311,
from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
include/asm-generic/iomap.h:84:13: note: previous declaration of 'ioread32_rep' with type 'void(const void *, void *, long unsigned int)'
84 | extern void ioread32_rep(const void __iomem *port, void *buf, unsigned long count);
| ^~~~~~~~~~~~
In file included from kernel/trace/trace_readwrite.c:10:
include/asm-generic/io.h:867:22: error: conflicting types for 'iowrite8_rep'; have 'void(volatile void *, const void *, unsigned int)'
867 | #define iowrite8_rep iowrite8_rep
| ^~~~~~~~~~~~
include/asm-generic/io.h:868:20: note: in expansion of macro 'iowrite8_rep'
868 | static inline void iowrite8_rep(volatile void __iomem *addr,
| ^~~~~~~~~~~~
In file included from arch/parisc/include/asm/io.h:311,
from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
include/asm-generic/iomap.h:86:13: note: previous declaration of 'iowrite8_rep' with type 'void(void *, const void *, long unsigned int)'
86 | extern void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count);
| ^~~~~~~~~~~~
In file included from kernel/trace/trace_readwrite.c:10:
include/asm-generic/io.h:877:23: error: conflicting types for 'iowrite16_rep'; have 'void(volatile void *, const void *, unsigned int)'
877 | #define iowrite16_rep iowrite16_rep
| ^~~~~~~~~~~~~
include/asm-generic/io.h:878:20: note: in expansion of macro 'iowrite16_rep'
878 | static inline void iowrite16_rep(volatile void __iomem *addr,
| ^~~~~~~~~~~~~
In file included from arch/parisc/include/asm/io.h:311,
from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
include/asm-generic/iomap.h:87:13: note: previous declaration of 'iowrite16_rep' with type 'void(void *, const void *, long unsigned int)'
87 | extern void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count);
| ^~~~~~~~~~~~~
In file included from kernel/trace/trace_readwrite.c:10:
include/asm-generic/io.h:887:23: error: conflicting types for 'iowrite32_rep'; have 'void(volatile void *, const void *, unsigned int)'
887 | #define iowrite32_rep iowrite32_rep
| ^~~~~~~~~~~~~
include/asm-generic/io.h:888:20: note: in expansion of macro 'iowrite32_rep'
888 | static inline void iowrite32_rep(volatile void __iomem *addr,
| ^~~~~~~~~~~~~
In file included from arch/parisc/include/asm/io.h:311,
from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
include/asm-generic/iomap.h:88:13: note: previous declaration of 'iowrite32_rep' with type 'void(void *, const void *, long unsigned int)'
88 | extern void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count);
| ^~~~~~~~~~~~~
In file included from kernel/trace/trace_readwrite.c:10:
>> include/asm-generic/io.h:1020:20: error: static declaration of 'ioport_map' follows non-static declaration
1020 | #define ioport_map ioport_map
| ^~~~~~~~~~
include/asm-generic/io.h:1021:29: note: in expansion of macro 'ioport_map'
1021 | static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
| ^~~~~~~~~~
In file included from arch/parisc/include/asm/io.h:311,
from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
include/asm-generic/iomap.h:92:22: note: previous declaration of 'ioport_map' with type 'void *(long unsigned int, unsigned int)'
92 | extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
| ^~~~~~~~~~
In file included from kernel/trace/trace_readwrite.c:10:
>> include/asm-generic/io.h:1030:22: error: static declaration of 'ioport_unmap' follows non-static declaration
1030 | #define ioport_unmap ioport_unmap
| ^~~~~~~~~~~~
include/asm-generic/io.h:1031:20: note: in expansion of macro 'ioport_unmap'
1031 | static inline void ioport_unmap(void __iomem *p)
| ^~~~~~~~~~~~
In file included from arch/parisc/include/asm/io.h:311,
from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
include/asm-generic/iomap.h:93:13: note: previous declaration of 'ioport_unmap' with type 'void(void *)'
93 | extern void ioport_unmap(void __iomem *);
| ^~~~~~~~~~~~
In file included from kernel/trace/trace_readwrite.c:10:
include/asm-generic/io.h:1077:19: error: conflicting types for 'memset_io'; have 'void(volatile void *, int, size_t)' {aka 'void(volatile void *, int, unsigned int)'}
1077 | #define memset_io memset_io
| ^~~~~~~~~
include/asm-generic/io.h:1086:20: note: in expansion of macro 'memset_io'
1086 | static inline void memset_io(volatile void __iomem *addr, int value,
| ^~~~~~~~~
In file included from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
arch/parisc/include/asm/io.h:222:6: note: previous declaration of 'memset_io' with type 'void(volatile void *, unsigned char, int)'
222 | void memset_io(volatile void __iomem *addr, unsigned char val, int count);
| ^~~~~~~~~
In file included from kernel/trace/trace_readwrite.c:10:
include/asm-generic/io.h:1094:23: error: conflicting types for 'memcpy_fromio'; have 'void(void *, const volatile void *, size_t)' {aka 'void(void *, const volatile void *, unsigned int)'}
1094 | #define memcpy_fromio memcpy_fromio
| ^~~~~~~~~~~~~
include/asm-generic/io.h:1103:20: note: in expansion of macro 'memcpy_fromio'
1103 | static inline void memcpy_fromio(void *buffer,
| ^~~~~~~~~~~~~
In file included from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
arch/parisc/include/asm/io.h:223:6: note: previous declaration of 'memcpy_fromio' with type 'void(void *, const volatile void *, int)'
223 | void memcpy_fromio(void *dst, const volatile void __iomem *src, int count);
| ^~~~~~~~~~~~~
In file included from kernel/trace/trace_readwrite.c:10:
include/asm-generic/io.h:1112:21: error: conflicting types for 'memcpy_toio'; have 'void(volatile void *, const void *, size_t)' {aka 'void(volatile void *, const void *, unsigned int)'}
1112 | #define memcpy_toio memcpy_toio
| ^~~~~~~~~~~
include/asm-generic/io.h:1121:20: note: in expansion of macro 'memcpy_toio'
1121 | static inline void memcpy_toio(volatile void __iomem *addr, const void *buffer,
| ^~~~~~~~~~~
In file included from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/trace_readwrite.c:8:
arch/parisc/include/asm/io.h:224:6: note: previous declaration of 'memcpy_toio' with type 'void(volatile void *, const void *, int)'
224 | void memcpy_toio(volatile void __iomem *dst, const void *src, int count);
| ^~~~~~~~~~~
kernel/trace/trace_readwrite.c:16:6: warning: no previous prototype for 'log_write_mmio' [-Wmissing-prototypes]
16 | void log_write_mmio(u64 val, u8 width, volatile void __iomem *addr)
| ^~~~~~~~~~~~~~
kernel/trace/trace_readwrite.c:23:6: warning: no previous prototype for 'log_read_mmio' [-Wmissing-prototypes]
23 | void log_read_mmio(u8 width, const volatile void __iomem *addr)
| ^~~~~~~~~~~~~

vim +/__raw_readb +74 include/asm-generic/io.h

64e2c6738b4d49 Sinan Kaya 2018-04-05 63
64e2c6738b4d49 Sinan Kaya 2018-04-05 64
3f7e212df82ca0 Arnd Bergmann 2009-05-13 65 /*
9216efafc52ff9 Thierry Reding 2014-10-01 66 * __raw_{read,write}{b,w,l,q}() access memory in native endianness.
9216efafc52ff9 Thierry Reding 2014-10-01 67 *
9216efafc52ff9 Thierry Reding 2014-10-01 68 * On some architectures memory mapped IO needs to be accessed differently.
9216efafc52ff9 Thierry Reding 2014-10-01 69 * On the simple architectures, we just read/write the memory location
9216efafc52ff9 Thierry Reding 2014-10-01 70 * directly.
3f7e212df82ca0 Arnd Bergmann 2009-05-13 71 */
9216efafc52ff9 Thierry Reding 2014-10-01 72
35dbc0e020c658 Mike Frysinger 2010-10-18 73 #ifndef __raw_readb
9216efafc52ff9 Thierry Reding 2014-10-01 @74 #define __raw_readb __raw_readb
3f7e212df82ca0 Arnd Bergmann 2009-05-13 75 static inline u8 __raw_readb(const volatile void __iomem *addr)
3f7e212df82ca0 Arnd Bergmann 2009-05-13 76 {
3f7e212df82ca0 Arnd Bergmann 2009-05-13 77 return *(const volatile u8 __force *)addr;
3f7e212df82ca0 Arnd Bergmann 2009-05-13 78 }
35dbc0e020c658 Mike Frysinger 2010-10-18 79 #endif
3f7e212df82ca0 Arnd Bergmann 2009-05-13 80
35dbc0e020c658 Mike Frysinger 2010-10-18 81 #ifndef __raw_readw
9216efafc52ff9 Thierry Reding 2014-10-01 @82 #define __raw_readw __raw_readw
3f7e212df82ca0 Arnd Bergmann 2009-05-13 83 static inline u16 __raw_readw(const volatile void __iomem *addr)
3f7e212df82ca0 Arnd Bergmann 2009-05-13 84 {
3f7e212df82ca0 Arnd Bergmann 2009-05-13 85 return *(const volatile u16 __force *)addr;
3f7e212df82ca0 Arnd Bergmann 2009-05-13 86 }
35dbc0e020c658 Mike Frysinger 2010-10-18 87 #endif
3f7e212df82ca0 Arnd Bergmann 2009-05-13 88
35dbc0e020c658 Mike Frysinger 2010-10-18 89 #ifndef __raw_readl
9216efafc52ff9 Thierry Reding 2014-10-01 @90 #define __raw_readl __raw_readl
3f7e212df82ca0 Arnd Bergmann 2009-05-13 91 static inline u32 __raw_readl(const volatile void __iomem *addr)
3f7e212df82ca0 Arnd Bergmann 2009-05-13 92 {
3f7e212df82ca0 Arnd Bergmann 2009-05-13 93 return *(const volatile u32 __force *)addr;
3f7e212df82ca0 Arnd Bergmann 2009-05-13 94 }
35dbc0e020c658 Mike Frysinger 2010-10-18 95 #endif
3f7e212df82ca0 Arnd Bergmann 2009-05-13 96
9216efafc52ff9 Thierry Reding 2014-10-01 97 #ifdef CONFIG_64BIT
9216efafc52ff9 Thierry Reding 2014-10-01 98 #ifndef __raw_readq
9216efafc52ff9 Thierry Reding 2014-10-01 99 #define __raw_readq __raw_readq
9216efafc52ff9 Thierry Reding 2014-10-01 100 static inline u64 __raw_readq(const volatile void __iomem *addr)
7292e7e01cc98f Heiko Carstens 2013-01-07 101 {
9216efafc52ff9 Thierry Reding 2014-10-01 102 return *(const volatile u64 __force *)addr;
7292e7e01cc98f Heiko Carstens 2013-01-07 103 }
9216efafc52ff9 Thierry Reding 2014-10-01 104 #endif
9216efafc52ff9 Thierry Reding 2014-10-01 105 #endif /* CONFIG_64BIT */
3f7e212df82ca0 Arnd Bergmann 2009-05-13 106
35dbc0e020c658 Mike Frysinger 2010-10-18 107 #ifndef __raw_writeb
9216efafc52ff9 Thierry Reding 2014-10-01 @108 #define __raw_writeb __raw_writeb
9216efafc52ff9 Thierry Reding 2014-10-01 109 static inline void __raw_writeb(u8 value, volatile void __iomem *addr)
3f7e212df82ca0 Arnd Bergmann 2009-05-13 110 {
9216efafc52ff9 Thierry Reding 2014-10-01 111 *(volatile u8 __force *)addr = value;
3f7e212df82ca0 Arnd Bergmann 2009-05-13 112 }
35dbc0e020c658 Mike Frysinger 2010-10-18 113 #endif
3f7e212df82ca0 Arnd Bergmann 2009-05-13 114
35dbc0e020c658 Mike Frysinger 2010-10-18 115 #ifndef __raw_writew
9216efafc52ff9 Thierry Reding 2014-10-01 @116 #define __raw_writew __raw_writew
9216efafc52ff9 Thierry Reding 2014-10-01 117 static inline void __raw_writew(u16 value, volatile void __iomem *addr)
3f7e212df82ca0 Arnd Bergmann 2009-05-13 118 {
9216efafc52ff9 Thierry Reding 2014-10-01 119 *(volatile u16 __force *)addr = value;
3f7e212df82ca0 Arnd Bergmann 2009-05-13 120 }
35dbc0e020c658 Mike Frysinger 2010-10-18 121 #endif
3f7e212df82ca0 Arnd Bergmann 2009-05-13 122
35dbc0e020c658 Mike Frysinger 2010-10-18 123 #ifndef __raw_writel
9216efafc52ff9 Thierry Reding 2014-10-01 @124 #define __raw_writel __raw_writel
9216efafc52ff9 Thierry Reding 2014-10-01 125 static inline void __raw_writel(u32 value, volatile void __iomem *addr)
3f7e212df82ca0 Arnd Bergmann 2009-05-13 126 {
9216efafc52ff9 Thierry Reding 2014-10-01 127 *(volatile u32 __force *)addr = value;
3f7e212df82ca0 Arnd Bergmann 2009-05-13 128 }
35dbc0e020c658 Mike Frysinger 2010-10-18 129 #endif
3f7e212df82ca0 Arnd Bergmann 2009-05-13 130

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