1 #ifndef _ASM_IA64_SN_SN_SAL_H 2 #define _ASM_IA64_SN_SN_SAL_H 3 4 /* 5 * System Abstraction Layer definitions for IA64 6 * 7 * This file is subject to the terms and conditions of the GNU General Public 8 * License. See the file "COPYING" in the main directory of this archive 9 * for more details. 10 * 11 * Copyright (c) 2000-2006 Silicon Graphics, Inc. All rights reserved. 12 */ 13 14 #include <linux/types.h> 15 #include <asm/sal.h> 16 17 // SGI Specific Calls 18 #define SN_SAL_GET_PARTITION_ADDR 0x02000009 19 #define SN_SAL_MEMPROTECT 0x0200003e 20 21 #define SN_SAL_WATCHLIST_ALLOC 0x02000070 22 #define SN_SAL_WATCHLIST_FREE 0x02000071 23 24 /* 25 * SAL Error Codes 26 */ 27 #define SALRET_MORE_PASSES 1 28 #define SALRET_OK 0 29 #define SALRET_NOT_IMPLEMENTED (-1) 30 #define SALRET_INVALID_ARG (-2) 31 #define SALRET_ERROR (-3) 32 33 /* 34 * Returns the physical address of the partition's reserved page through 35 * an iterative number of calls. 36 * 37 * On first call, 'cookie' and 'len' should be set to 0, and 'addr' 38 * set to the nasid of the partition whose reserved page's address is 39 * being sought. 40 * On subsequent calls, pass the values, that were passed back on the 41 * previous call. 42 * 43 * While the return status equals SALRET_MORE_PASSES, keep calling 44 * this function after first copying 'len' bytes starting at 'addr' 45 * into 'buf'. Once the return status equals SALRET_OK, 'addr' will 46 * be the physical address of the partition's reserved page. If the 47 * return status equals neither of these, an error as occurred. 48 */ 49 static inline s64 50 sn_partition_reserved_page_pa(u64 buf, u64 *cookie, u64 *addr, u64 *len) 51 { 52 struct ia64_sal_retval rv; 53 ia64_sal_oemcall_reentrant(&rv, SN_SAL_GET_PARTITION_ADDR, *cookie, 54 *addr, buf, *len, 0, 0, 0); 55 *cookie = rv.v0; 56 *addr = rv.v1; 57 *len = rv.v2; 58 return rv.status; 59 } 60 61 /* 62 * Change memory access protections for a physical address range. 63 * nasid_array is not used on Altix, but may be in future architectures. 64 * Available memory protection access classes are defined after the function. 65 */ 66 static inline int 67 sn_change_memprotect(u64 paddr, u64 len, u64 perms, u64 *nasid_array) 68 { 69 struct ia64_sal_retval ret_stuff; 70 71 ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_MEMPROTECT, paddr, len, 72 (u64)nasid_array, perms, 0, 0, 0); 73 return ret_stuff.status; 74 } 75 #define SN_MEMPROT_ACCESS_CLASS_0 0x14a080 76 #define SN_MEMPROT_ACCESS_CLASS_1 0x2520c2 77 #define SN_MEMPROT_ACCESS_CLASS_2 0x14a1ca 78 #define SN_MEMPROT_ACCESS_CLASS_3 0x14a290 79 #define SN_MEMPROT_ACCESS_CLASS_6 0x084080 80 #define SN_MEMPROT_ACCESS_CLASS_7 0x021080 81 82 union sn_watchlist_u { 83 u64 val; 84 struct { 85 u64 blade : 16, 86 size : 32, 87 filler : 16; 88 }; 89 }; 90 91 static inline int 92 sn_mq_watchlist_alloc(int blade, void *mq, unsigned int mq_size, 93 unsigned long *intr_mmr_offset) 94 { 95 struct ia64_sal_retval rv; 96 unsigned long addr; 97 union sn_watchlist_u size_blade; 98 int watchlist; 99 100 addr = (unsigned long)mq; 101 size_blade.size = mq_size; 102 size_blade.blade = blade; 103 104 /* 105 * bios returns watchlist number or negative error number. 106 */ 107 ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_ALLOC, addr, 108 size_blade.val, (u64)intr_mmr_offset, 109 (u64)&watchlist, 0, 0, 0); 110 if (rv.status < 0) 111 return rv.status; 112 113 return watchlist; 114 } 115 116 static inline int 117 sn_mq_watchlist_free(int blade, int watchlist_num) 118 { 119 struct ia64_sal_retval rv; 120 ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_FREE, blade, 121 watchlist_num, 0, 0, 0, 0, 0); 122 return rv.status; 123 } 124 #endif /* _ASM_IA64_SN_SN_SAL_H */ 125