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usr
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linux-headers-5.4.0-113
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arch
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ia64
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include
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asm
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sn
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Filename :
sn_sal.h
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#ifndef _ASM_IA64_SN_SN_SAL_H #define _ASM_IA64_SN_SN_SAL_H /* * System Abstraction Layer definitions for IA64 * * 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) 2000-2006 Silicon Graphics, Inc. All rights reserved. */ #include <linux/types.h> #include <asm/sal.h> // SGI Specific Calls #define SN_SAL_GET_PARTITION_ADDR 0x02000009 #define SN_SAL_MEMPROTECT 0x0200003e #define SN_SAL_WATCHLIST_ALLOC 0x02000070 #define SN_SAL_WATCHLIST_FREE 0x02000071 /* * SAL Error Codes */ #define SALRET_MORE_PASSES 1 #define SALRET_OK 0 #define SALRET_NOT_IMPLEMENTED (-1) #define SALRET_INVALID_ARG (-2) #define SALRET_ERROR (-3) /* * Returns the physical address of the partition's reserved page through * an iterative number of calls. * * On first call, 'cookie' and 'len' should be set to 0, and 'addr' * set to the nasid of the partition whose reserved page's address is * being sought. * On subsequent calls, pass the values, that were passed back on the * previous call. * * While the return status equals SALRET_MORE_PASSES, keep calling * this function after first copying 'len' bytes starting at 'addr' * into 'buf'. Once the return status equals SALRET_OK, 'addr' will * be the physical address of the partition's reserved page. If the * return status equals neither of these, an error as occurred. */ static inline s64 sn_partition_reserved_page_pa(u64 buf, u64 *cookie, u64 *addr, u64 *len) { struct ia64_sal_retval rv; ia64_sal_oemcall_reentrant(&rv, SN_SAL_GET_PARTITION_ADDR, *cookie, *addr, buf, *len, 0, 0, 0); *cookie = rv.v0; *addr = rv.v1; *len = rv.v2; return rv.status; } /* * Change memory access protections for a physical address range. * nasid_array is not used on Altix, but may be in future architectures. * Available memory protection access classes are defined after the function. */ static inline int sn_change_memprotect(u64 paddr, u64 len, u64 perms, u64 *nasid_array) { struct ia64_sal_retval ret_stuff; ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_MEMPROTECT, paddr, len, (u64)nasid_array, perms, 0, 0, 0); return ret_stuff.status; } #define SN_MEMPROT_ACCESS_CLASS_0 0x14a080 #define SN_MEMPROT_ACCESS_CLASS_1 0x2520c2 #define SN_MEMPROT_ACCESS_CLASS_2 0x14a1ca #define SN_MEMPROT_ACCESS_CLASS_3 0x14a290 #define SN_MEMPROT_ACCESS_CLASS_6 0x084080 #define SN_MEMPROT_ACCESS_CLASS_7 0x021080 union sn_watchlist_u { u64 val; struct { u64 blade : 16, size : 32, filler : 16; }; }; static inline int sn_mq_watchlist_alloc(int blade, void *mq, unsigned int mq_size, unsigned long *intr_mmr_offset) { struct ia64_sal_retval rv; unsigned long addr; union sn_watchlist_u size_blade; int watchlist; addr = (unsigned long)mq; size_blade.size = mq_size; size_blade.blade = blade; /* * bios returns watchlist number or negative error number. */ ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_ALLOC, addr, size_blade.val, (u64)intr_mmr_offset, (u64)&watchlist, 0, 0, 0); if (rv.status < 0) return rv.status; return watchlist; } static inline int sn_mq_watchlist_free(int blade, int watchlist_num) { struct ia64_sal_retval rv; ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_FREE, blade, watchlist_num, 0, 0, 0, 0, 0); return rv.status; } #endif /* _ASM_IA64_SN_SN_SAL_H */