AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-24 15:20:58 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

asm-generic: introduce asm/bitsperlong.h

Browse Source 
This provides a reliable way for asm-generic/types.h and other
files to find out if it is running on a 32 or 64 bit platform.

We cannot use CONFIG_64BIT for this in headers that are included
from user space because CONFIG symbols are not available there.
We also cannot do it inside of asm/types.h because some headers
need the word size but cannot include types.h.

The solution is to introduce a new header <asm/bitsperlong.h>
that defines both __BITS_PER_LONG for user space and
BITS_PER_LONG for usage in the kernel. The asm-generic
version falls back to 32 bit unless the architecture overrides
it, which I did for all 64 bit platforms.

Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2009-05-13 22:56:25 +00:00 committed by Arnd Bergmann
parent 63b852a6b6
commit c31ae4bb4a
33 changed files with 145 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
arch/alpha/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1,8 @@
#ifndef __ASM_ALPHA_BITSPERLONG_H
#define __ASM_ALPHA_BITSPERLONG_H
#define __BITS_PER_LONG 64
#include <asm-generic/bitsperlong.h>
#endif /* __ASM_ALPHA_BITSPERLONG_H */

3
arch/alpha/include/asm/types.h
View File

@ -25,9 +25,6 @@ typedef unsigned int umode_t;
* These aren't exported outside the kernel to avoid name space clashes
*/
#ifdef __KERNEL__
#define BITS_PER_LONG 64
#ifndef __ASSEMBLY__
typedef u64 dma_addr_t;

1
arch/arm/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1 @@
#include <asm-generic/bitsperlong.h>

1
arch/avr32/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1 @@
#include <asm-generic/bitsperlong.h>

1
arch/blackfin/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1 @@
#include <asm-generic/bitsperlong.h>

1
arch/cris/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1 @@
#include <asm-generic/bitsperlong.h>

1
arch/frv/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1 @@
#include <asm-generic/bitsperlong.h>

1
arch/h8300/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1 @@
#include <asm-generic/bitsperlong.h>

8
arch/ia64/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1,8 @@
#ifndef __ASM_IA64_BITSPERLONG_H
#define __ASM_IA64_BITSPERLONG_H
#define __BITS_PER_LONG 64
#include <asm-generic/bitsperlong.h>
#endif /* __ASM_IA64_BITSPERLONG_H */

7
arch/ia64/include/asm/types.h
View File

@ -19,10 +19,6 @@
# define __IA64_UL(x) (x)
# define __IA64_UL_CONST(x) x
# ifdef __KERNEL__
# define BITS_PER_LONG 64
# endif
#else
# define __IA64_UL(x) ((unsigned long)(x))
# define __IA64_UL_CONST(x) x##UL
@ -34,10 +30,7 @@ typedef unsigned int umode_t;
*/
# ifdef __KERNEL__
#define BITS_PER_LONG 64
/* DMA addresses are 64-bits wide, in general. */
typedef u64 dma_addr_t;
# endif /* __KERNEL__ */

1
arch/m32r/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1 @@
#include <asm-generic/bitsperlong.h>

1
arch/m68k/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1 @@
#include <asm-generic/bitsperlong.h>

1
arch/microblaze/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1 @@
#include <asm-generic/bitsperlong.h>

8
arch/mips/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1,8 @@
#ifndef __ASM_MIPS_BITSPERLONG_H
#define __ASM_MIPS_BITSPERLONG_H
#define __BITS_PER_LONG _MIPS_SZLONG
#include <asm-generic/bitsperlong.h>
#endif /* __ASM_MIPS_BITSPERLONG_H */

3
arch/mips/include/asm/types.h
View File

@ -31,9 +31,6 @@ typedef unsigned short umode_t;
* These aren't exported outside the kernel to avoid name space clashes
*/
#ifdef __KERNEL__
#define BITS_PER_LONG _MIPS_SZLONG
#ifndef __ASSEMBLY__
#if (defined(CONFIG_HIGHMEM) && defined(CONFIG_64BIT_PHYS_ADDR)) \

1
arch/mn10300/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1 @@
#include <asm-generic/bitsperlong.h>

20
arch/parisc/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1,20 @@
#ifndef __ASM_PARISC_BITSPERLONG_H
#define __ASM_PARISC_BITSPERLONG_H
/*
* using CONFIG_* outside of __KERNEL__ is wrong,
* __LP64__ was also removed from headers, so what
* is the right approach on parisc?
* -arnd
*/
#if (defined(__KERNEL__) && defined(CONFIG_64BIT)) || defined (__LP64__)
#define __BITS_PER_LONG 64
#define SHIFT_PER_LONG 6
#else
#define __BITS_PER_LONG 32
#define SHIFT_PER_LONG 5
#endif
#include <asm-generic/bitsperlong.h>
#endif /* __ASM_PARISC_BITSPERLONG_H */

8
arch/parisc/include/asm/types.h
View File

@ -14,14 +14,6 @@ typedef unsigned short umode_t;
*/
#ifdef __KERNEL__
#ifdef CONFIG_64BIT
#define BITS_PER_LONG 64
#define SHIFT_PER_LONG 6
#else
#define BITS_PER_LONG 32
#define SHIFT_PER_LONG 5
#endif
#ifndef __ASSEMBLY__
/* Dma addresses are 32-bits wide. */

12
arch/powerpc/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1,12 @@
#ifndef __ASM_POWERPC_BITSPERLONG_H
#define __ASM_POWERPC_BITSPERLONG_H
#if defined(__powerpc64__)
# define __BITS_PER_LONG 64
#else
# define __BITS_PER_LONG 32
#endif
#include <asm-generic/bitsperlong.h>
#endif /* __ASM_POWERPC_BITSPERLONG_H */

9
arch/powerpc/include/asm/types.h
View File

@ -40,15 +40,6 @@ typedef struct {
#endif /* __ASSEMBLY__ */
#ifdef __KERNEL__
/*
* These aren't exported outside the kernel to avoid name space clashes
*/
#ifdef __powerpc64__
#define BITS_PER_LONG 64
#else
#define BITS_PER_LONG 32
#endif
#ifndef __ASSEMBLY__
typedef __vector128 vector128;

13
arch/s390/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1,13 @@
#ifndef __ASM_S390_BITSPERLONG_H
#define __ASM_S390_BITSPERLONG_H
#ifndef __s390x__
#define __BITS_PER_LONG 32
#else
#define __BITS_PER_LONG 64
#endif
#include <asm-generic/bitsperlong.h>
#endif /* __ASM_S390_BITSPERLONG_H */

6
arch/s390/include/asm/types.h
View File

@ -28,12 +28,6 @@ typedef __signed__ long saddr_t;
*/
#ifdef __KERNEL__
#ifndef __s390x__
#define BITS_PER_LONG 32
#else
#define BITS_PER_LONG 64
#endif
#ifndef __ASSEMBLY__
typedef u64 dma64_addr_t;

1
arch/sh/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1 @@
#include <asm-generic/bitsperlong.h>

13
arch/sparc/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1,13 @@
#ifndef __ASM_ALPHA_BITSPERLONG_H
#define __ASM_ALPHA_BITSPERLONG_H
#if defined(__sparc__) && defined(__arch64__)
#define __BITS_PER_LONG 64
#else
#define __BITS_PER_LONG 32
#endif
#include <asm-generic/bitsperlong.h>
#endif /* __ASM_ALPHA_BITSPERLONG_H */

4
arch/sparc/include/asm/types.h
View File

@ -21,8 +21,6 @@ typedef unsigned short umode_t;
#ifdef __KERNEL__
#define BITS_PER_LONG 64
#ifndef __ASSEMBLY__
/* Dma addresses come in generic and 64-bit flavours. */
@ -46,8 +44,6 @@ typedef unsigned short umode_t;
#ifdef __KERNEL__
#define BITS_PER_LONG 32
#ifndef __ASSEMBLY__
typedef u32 dma_addr_t;

13
arch/x86/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1,13 @@
#ifndef __ASM_X86_BITSPERLONG_H
#define __ASM_X86_BITSPERLONG_H
#ifdef __x86_64__
# define __BITS_PER_LONG 64
#else
# define __BITS_PER_LONG 32
#endif
#include <asm-generic/bitsperlong.h>
#endif /* __ASM_X86_BITSPERLONG_H */

6
arch/x86/include/asm/types.h
View File

@ -14,12 +14,6 @@ typedef unsigned short umode_t;
*/
#ifdef __KERNEL__
#ifdef CONFIG_X86_32
# define BITS_PER_LONG 32
#else
# define BITS_PER_LONG 64
#endif
#ifndef __ASSEMBLY__
typedef u64 dma64_addr_t;

1
arch/xtensa/include/asm/bitsperlong.h Normal file
View File

@ -0,0 +1 @@
#include <asm-generic/bitsperlong.h>

1
include/asm-generic/Kbuild
View File

@ -1,3 +1,4 @@
header-y += bitsperlong.h
header-y += errno-base.h
header-y += errno.h
header-y += fcntl.h

1
include/asm-generic/Kbuild.asm
View File

@ -9,6 +9,7 @@ unifdef-y += a.out.h
endif
unifdef-y += auxvec.h
unifdef-y += byteorder.h
unifdef-y += bitsperlong.h
unifdef-y += errno.h
unifdef-y += fcntl.h
unifdef-y += ioctl.h

32
include/asm-generic/bitsperlong.h Normal file
View File

@ -0,0 +1,32 @@
#ifndef __ASM_GENERIC_BITS_PER_LONG
#define __ASM_GENERIC_BITS_PER_LONG
/*
* There seems to be no way of detecting this automatically from user
* space, so 64 bit architectures should override this in their
* bitsperlong.h. In particular, an architecture that supports
* both 32 and 64 bit user space must not rely on CONFIG_64BIT
* to decide it, but rather check a compiler provided macro.
*/
#ifndef __BITS_PER_LONG
#define __BITS_PER_LONG 32
#endif
#ifdef __KERNEL__
#ifdef CONFIG_64BIT
#define BITS_PER_LONG 64
#else
#define BITS_PER_LONG 32
#endif /* CONFIG_64BIT */
/*
* FIXME: The check currently breaks x86-64 build, so it's
* temporarily disabled. Please fix x86-64 and reenable
*/
#if 0 && BITS_PER_LONG != __BITS_PER_LONG
#error Inconsistent word size. Check asm/bitsperlong.h
#endif
#endif /* __KERNEL__ */
#endif /* __ASM_GENERIC_BITS_PER_LONG */

2
include/asm-generic/int-l64.h
View File

@ -8,6 +8,8 @@
#ifndef _ASM_GENERIC_INT_L64_H
#define _ASM_GENERIC_INT_L64_H
#include <asm/bitsperlong.h>
#ifndef __ASSEMBLY__
/*
* __xx is ok: it doesn't pollute the POSIX namespace. Use these in the

2
include/asm-generic/int-ll64.h
View File

@ -8,6 +8,8 @@
#ifndef _ASM_GENERIC_INT_LL64_H
#define _ASM_GENERIC_INT_LL64_H
#include <asm/bitsperlong.h>
#ifndef __ASSEMBLY__
/*
* __xx is ok: it doesn't pollute the POSIX namespace. Use these in the