diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/c6x/include/asm/unaligned.h')
| -rw-r--r-- | ANDROID_3.4.5/arch/c6x/include/asm/unaligned.h | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/ANDROID_3.4.5/arch/c6x/include/asm/unaligned.h b/ANDROID_3.4.5/arch/c6x/include/asm/unaligned.h deleted file mode 100644 index b976cb74..00000000 --- a/ANDROID_3.4.5/arch/c6x/include/asm/unaligned.h +++ /dev/null @@ -1,170 +0,0 @@ -/* - * Port on Texas Instruments TMS320C6x architecture - * - * Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated - * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) - * Rewritten for 2.6.3x: Mark Salter <msalter@redhat.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. - */ -#ifndef _ASM_C6X_UNALIGNED_H -#define _ASM_C6X_UNALIGNED_H - -#include <linux/swab.h> - -/* - * The C64x+ can do unaligned word and dword accesses in hardware - * using special load/store instructions. - */ - -static inline u16 get_unaligned_le16(const void *p) -{ - const u8 *_p = p; - return _p[0] | _p[1] << 8; -} - -static inline u16 get_unaligned_be16(const void *p) -{ - const u8 *_p = p; - return _p[0] << 8 | _p[1]; -} - -static inline void put_unaligned_le16(u16 val, void *p) -{ - u8 *_p = p; - _p[0] = val; - _p[1] = val >> 8; -} - -static inline void put_unaligned_be16(u16 val, void *p) -{ - u8 *_p = p; - _p[0] = val >> 8; - _p[1] = val; -} - -static inline u32 get_unaligned32(const void *p) -{ - u32 val = (u32) p; - asm (" ldnw .d1t1 *%0,%0\n" - " nop 4\n" - : "+a"(val)); - return val; -} - -static inline void put_unaligned32(u32 val, void *p) -{ - asm volatile (" stnw .d2t1 %0,*%1\n" - : : "a"(val), "b"(p) : "memory"); -} - -static inline u64 get_unaligned64(const void *p) -{ - u64 val; - asm volatile (" ldndw .d1t1 *%1,%0\n" - " nop 4\n" - : "=a"(val) : "a"(p)); - return val; -} - -static inline void put_unaligned64(u64 val, const void *p) -{ - asm volatile (" stndw .d2t1 %0,*%1\n" - : : "a"(val), "b"(p) : "memory"); -} - -#ifdef CONFIG_CPU_BIG_ENDIAN - -#define get_unaligned_le32(p) __swab32(get_unaligned32(p)) -#define get_unaligned_le64(p) __swab64(get_unaligned64(p)) -#define get_unaligned_be32(p) get_unaligned32(p) -#define get_unaligned_be64(p) get_unaligned64(p) -#define put_unaligned_le32(v, p) put_unaligned32(__swab32(v), (p)) -#define put_unaligned_le64(v, p) put_unaligned64(__swab64(v), (p)) -#define put_unaligned_be32(v, p) put_unaligned32((v), (p)) -#define put_unaligned_be64(v, p) put_unaligned64((v), (p)) -#define get_unaligned __get_unaligned_be -#define put_unaligned __put_unaligned_be - -#else - -#define get_unaligned_le32(p) get_unaligned32(p) -#define get_unaligned_le64(p) get_unaligned64(p) -#define get_unaligned_be32(p) __swab32(get_unaligned32(p)) -#define get_unaligned_be64(p) __swab64(get_unaligned64(p)) -#define put_unaligned_le32(v, p) put_unaligned32((v), (p)) -#define put_unaligned_le64(v, p) put_unaligned64((v), (p)) -#define put_unaligned_be32(v, p) put_unaligned32(__swab32(v), (p)) -#define put_unaligned_be64(v, p) put_unaligned64(__swab64(v), (p)) -#define get_unaligned __get_unaligned_le -#define put_unaligned __put_unaligned_le - -#endif - -/* - * Cause a link-time error if we try an unaligned access other than - * 1,2,4 or 8 bytes long - */ -extern int __bad_unaligned_access_size(void); - -#define __get_unaligned_le(ptr) (typeof(*(ptr)))({ \ - sizeof(*(ptr)) == 1 ? *(ptr) : \ - (sizeof(*(ptr)) == 2 ? get_unaligned_le16((ptr)) : \ - (sizeof(*(ptr)) == 4 ? get_unaligned_le32((ptr)) : \ - (sizeof(*(ptr)) == 8 ? get_unaligned_le64((ptr)) : \ - __bad_unaligned_access_size()))); \ - }) - -#define __get_unaligned_be(ptr) (__force typeof(*(ptr)))({ \ - sizeof(*(ptr)) == 1 ? *(ptr) : \ - (sizeof(*(ptr)) == 2 ? get_unaligned_be16((ptr)) : \ - (sizeof(*(ptr)) == 4 ? get_unaligned_be32((ptr)) : \ - (sizeof(*(ptr)) == 8 ? get_unaligned_be64((ptr)) : \ - __bad_unaligned_access_size()))); \ - }) - -#define __put_unaligned_le(val, ptr) ({ \ - void *__gu_p = (ptr); \ - switch (sizeof(*(ptr))) { \ - case 1: \ - *(u8 *)__gu_p = (__force u8)(val); \ - break; \ - case 2: \ - put_unaligned_le16((__force u16)(val), __gu_p); \ - break; \ - case 4: \ - put_unaligned_le32((__force u32)(val), __gu_p); \ - break; \ - case 8: \ - put_unaligned_le64((__force u64)(val), __gu_p); \ - break; \ - default: \ - __bad_unaligned_access_size(); \ - break; \ - } \ - (void)0; }) - -#define __put_unaligned_be(val, ptr) ({ \ - void *__gu_p = (ptr); \ - switch (sizeof(*(ptr))) { \ - case 1: \ - *(u8 *)__gu_p = (__force u8)(val); \ - break; \ - case 2: \ - put_unaligned_be16((__force u16)(val), __gu_p); \ - break; \ - case 4: \ - put_unaligned_be32((__force u32)(val), __gu_p); \ - break; \ - case 8: \ - put_unaligned_be64((__force u64)(val), __gu_p); \ - break; \ - default: \ - __bad_unaligned_access_size(); \ - break; \ - } \ - (void)0; }) - -#endif /* _ASM_C6X_UNALIGNED_H */ |