1*4882a593Smuzhiyun #ifndef _ASM_IA64_SN_SN_SAL_H
2*4882a593Smuzhiyun #define _ASM_IA64_SN_SN_SAL_H
3*4882a593Smuzhiyun
4*4882a593Smuzhiyun /*
5*4882a593Smuzhiyun * System Abstraction Layer definitions for IA64
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * This file is subject to the terms and conditions of the GNU General Public
8*4882a593Smuzhiyun * License. See the file "COPYING" in the main directory of this archive
9*4882a593Smuzhiyun * for more details.
10*4882a593Smuzhiyun *
11*4882a593Smuzhiyun * Copyright (c) 2000-2006 Silicon Graphics, Inc. All rights reserved.
12*4882a593Smuzhiyun */
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun #include <linux/types.h>
15*4882a593Smuzhiyun #include <asm/sal.h>
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun // SGI Specific Calls
18*4882a593Smuzhiyun #define SN_SAL_GET_PARTITION_ADDR 0x02000009
19*4882a593Smuzhiyun #define SN_SAL_MEMPROTECT 0x0200003e
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun #define SN_SAL_WATCHLIST_ALLOC 0x02000070
22*4882a593Smuzhiyun #define SN_SAL_WATCHLIST_FREE 0x02000071
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun /*
25*4882a593Smuzhiyun * SAL Error Codes
26*4882a593Smuzhiyun */
27*4882a593Smuzhiyun #define SALRET_MORE_PASSES 1
28*4882a593Smuzhiyun #define SALRET_OK 0
29*4882a593Smuzhiyun #define SALRET_NOT_IMPLEMENTED (-1)
30*4882a593Smuzhiyun #define SALRET_INVALID_ARG (-2)
31*4882a593Smuzhiyun #define SALRET_ERROR (-3)
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun /*
34*4882a593Smuzhiyun * Returns the physical address of the partition's reserved page through
35*4882a593Smuzhiyun * an iterative number of calls.
36*4882a593Smuzhiyun *
37*4882a593Smuzhiyun * On first call, 'cookie' and 'len' should be set to 0, and 'addr'
38*4882a593Smuzhiyun * set to the nasid of the partition whose reserved page's address is
39*4882a593Smuzhiyun * being sought.
40*4882a593Smuzhiyun * On subsequent calls, pass the values, that were passed back on the
41*4882a593Smuzhiyun * previous call.
42*4882a593Smuzhiyun *
43*4882a593Smuzhiyun * While the return status equals SALRET_MORE_PASSES, keep calling
44*4882a593Smuzhiyun * this function after first copying 'len' bytes starting at 'addr'
45*4882a593Smuzhiyun * into 'buf'. Once the return status equals SALRET_OK, 'addr' will
46*4882a593Smuzhiyun * be the physical address of the partition's reserved page. If the
47*4882a593Smuzhiyun * return status equals neither of these, an error as occurred.
48*4882a593Smuzhiyun */
49*4882a593Smuzhiyun static inline s64
sn_partition_reserved_page_pa(u64 buf,u64 * cookie,u64 * addr,u64 * len)50*4882a593Smuzhiyun sn_partition_reserved_page_pa(u64 buf, u64 *cookie, u64 *addr, u64 *len)
51*4882a593Smuzhiyun {
52*4882a593Smuzhiyun struct ia64_sal_retval rv;
53*4882a593Smuzhiyun ia64_sal_oemcall_reentrant(&rv, SN_SAL_GET_PARTITION_ADDR, *cookie,
54*4882a593Smuzhiyun *addr, buf, *len, 0, 0, 0);
55*4882a593Smuzhiyun *cookie = rv.v0;
56*4882a593Smuzhiyun *addr = rv.v1;
57*4882a593Smuzhiyun *len = rv.v2;
58*4882a593Smuzhiyun return rv.status;
59*4882a593Smuzhiyun }
60*4882a593Smuzhiyun
61*4882a593Smuzhiyun /*
62*4882a593Smuzhiyun * Change memory access protections for a physical address range.
63*4882a593Smuzhiyun * nasid_array is not used on Altix, but may be in future architectures.
64*4882a593Smuzhiyun * Available memory protection access classes are defined after the function.
65*4882a593Smuzhiyun */
66*4882a593Smuzhiyun static inline int
sn_change_memprotect(u64 paddr,u64 len,u64 perms,u64 * nasid_array)67*4882a593Smuzhiyun sn_change_memprotect(u64 paddr, u64 len, u64 perms, u64 *nasid_array)
68*4882a593Smuzhiyun {
69*4882a593Smuzhiyun struct ia64_sal_retval ret_stuff;
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_MEMPROTECT, paddr, len,
72*4882a593Smuzhiyun (u64)nasid_array, perms, 0, 0, 0);
73*4882a593Smuzhiyun return ret_stuff.status;
74*4882a593Smuzhiyun }
75*4882a593Smuzhiyun #define SN_MEMPROT_ACCESS_CLASS_0 0x14a080
76*4882a593Smuzhiyun #define SN_MEMPROT_ACCESS_CLASS_1 0x2520c2
77*4882a593Smuzhiyun #define SN_MEMPROT_ACCESS_CLASS_2 0x14a1ca
78*4882a593Smuzhiyun #define SN_MEMPROT_ACCESS_CLASS_3 0x14a290
79*4882a593Smuzhiyun #define SN_MEMPROT_ACCESS_CLASS_6 0x084080
80*4882a593Smuzhiyun #define SN_MEMPROT_ACCESS_CLASS_7 0x021080
81*4882a593Smuzhiyun
82*4882a593Smuzhiyun union sn_watchlist_u {
83*4882a593Smuzhiyun u64 val;
84*4882a593Smuzhiyun struct {
85*4882a593Smuzhiyun u64 blade : 16,
86*4882a593Smuzhiyun size : 32,
87*4882a593Smuzhiyun filler : 16;
88*4882a593Smuzhiyun };
89*4882a593Smuzhiyun };
90*4882a593Smuzhiyun
91*4882a593Smuzhiyun static inline int
sn_mq_watchlist_alloc(int blade,void * mq,unsigned int mq_size,unsigned long * intr_mmr_offset)92*4882a593Smuzhiyun sn_mq_watchlist_alloc(int blade, void *mq, unsigned int mq_size,
93*4882a593Smuzhiyun unsigned long *intr_mmr_offset)
94*4882a593Smuzhiyun {
95*4882a593Smuzhiyun struct ia64_sal_retval rv;
96*4882a593Smuzhiyun unsigned long addr;
97*4882a593Smuzhiyun union sn_watchlist_u size_blade;
98*4882a593Smuzhiyun int watchlist;
99*4882a593Smuzhiyun
100*4882a593Smuzhiyun addr = (unsigned long)mq;
101*4882a593Smuzhiyun size_blade.size = mq_size;
102*4882a593Smuzhiyun size_blade.blade = blade;
103*4882a593Smuzhiyun
104*4882a593Smuzhiyun /*
105*4882a593Smuzhiyun * bios returns watchlist number or negative error number.
106*4882a593Smuzhiyun */
107*4882a593Smuzhiyun ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_ALLOC, addr,
108*4882a593Smuzhiyun size_blade.val, (u64)intr_mmr_offset,
109*4882a593Smuzhiyun (u64)&watchlist, 0, 0, 0);
110*4882a593Smuzhiyun if (rv.status < 0)
111*4882a593Smuzhiyun return rv.status;
112*4882a593Smuzhiyun
113*4882a593Smuzhiyun return watchlist;
114*4882a593Smuzhiyun }
115*4882a593Smuzhiyun
116*4882a593Smuzhiyun static inline int
sn_mq_watchlist_free(int blade,int watchlist_num)117*4882a593Smuzhiyun sn_mq_watchlist_free(int blade, int watchlist_num)
118*4882a593Smuzhiyun {
119*4882a593Smuzhiyun struct ia64_sal_retval rv;
120*4882a593Smuzhiyun ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_FREE, blade,
121*4882a593Smuzhiyun watchlist_num, 0, 0, 0, 0, 0);
122*4882a593Smuzhiyun return rv.status;
123*4882a593Smuzhiyun }
124*4882a593Smuzhiyun #endif /* _ASM_IA64_SN_SN_SAL_H */
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