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