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Diffstat (limited to 'include/asm-ia64/sn/fetchop.h')
-rw-r--r-- | include/asm-ia64/sn/fetchop.h | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/include/asm-ia64/sn/fetchop.h b/include/asm-ia64/sn/fetchop.h deleted file mode 100644 index 5f4ad8f4b5d2..000000000000 --- a/include/asm-ia64/sn/fetchop.h +++ /dev/null @@ -1,85 +0,0 @@ -/* - * - * 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) 2001-2004 Silicon Graphics, Inc. All rights reserved. - */ - -#ifndef _ASM_IA64_SN_FETCHOP_H -#define _ASM_IA64_SN_FETCHOP_H - -#include <linux/config.h> - -#define FETCHOP_BASENAME "sgi_fetchop" -#define FETCHOP_FULLNAME "/dev/sgi_fetchop" - - - -#define FETCHOP_VAR_SIZE 64 /* 64 byte per fetchop variable */ - -#define FETCHOP_LOAD 0 -#define FETCHOP_INCREMENT 8 -#define FETCHOP_DECREMENT 16 -#define FETCHOP_CLEAR 24 - -#define FETCHOP_STORE 0 -#define FETCHOP_AND 24 -#define FETCHOP_OR 32 - -#define FETCHOP_CLEAR_CACHE 56 - -#define FETCHOP_LOAD_OP(addr, op) ( \ - *(volatile long *)((char*) (addr) + (op))) - -#define FETCHOP_STORE_OP(addr, op, x) ( \ - *(volatile long *)((char*) (addr) + (op)) = (long) (x)) - -#ifdef __KERNEL__ - -/* - * Convert a region 6 (kaddr) address to the address of the fetchop variable - */ -#define FETCHOP_KADDR_TO_MSPEC_ADDR(kaddr) TO_MSPEC(kaddr) - - -/* - * Each Atomic Memory Operation (AMO formerly known as fetchop) - * variable is 64 bytes long. The first 8 bytes are used. The - * remaining 56 bytes are unaddressable due to the operation taking - * that portion of the address. - * - * NOTE: The AMO_t _MUST_ be placed in either the first or second half - * of the cache line. The cache line _MUST NOT_ be used for anything - * other than additional AMO_t entries. This is because there are two - * addresses which reference the same physical cache line. One will - * be a cached entry with the memory type bits all set. This address - * may be loaded into processor cache. The AMO_t will be referenced - * uncached via the memory special memory type. If any portion of the - * cached cache-line is modified, when that line is flushed, it will - * overwrite the uncached value in physical memory and lead to - * inconsistency. - */ -typedef struct { - u64 variable; - u64 unused[7]; -} AMO_t; - - -/* - * The following APIs are externalized to the kernel to allocate/free pages of - * fetchop variables. - * fetchop_kalloc_page - Allocate/initialize 1 fetchop page on the - * specified cnode. - * fetchop_kfree_page - Free a previously allocated fetchop page - */ - -unsigned long fetchop_kalloc_page(int nid); -void fetchop_kfree_page(unsigned long maddr); - - -#endif /* __KERNEL__ */ - -#endif /* _ASM_IA64_SN_FETCHOP_H */ - |