1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
/*
* 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) 1992-1999,2001-2004 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_ADDRS_H
#define _ASM_IA64_SN_ADDRS_H
#include <asm/percpu.h>
#include <asm/sn/types.h>
#include <asm/sn/arch.h>
#include <asm/sn/pda.h>
/*
* Memory/SHUB Address Format:
* +-+---------+--+--------------+
* |0| NASID |AS| NodeOffset |
* +-+---------+--+--------------+
*
* NASID: (low NASID bit is 0) Memory and SHUB MMRs
* AS: 2-bit Address Space Identifier. Used only if low NASID bit is 0
* 00: Local Resources and MMR space
* Top bit of NodeOffset
* 0: Local resources space
* node id:
* 0: IA64/NT compatibility space
* 2: Local MMR Space
* 4: Local memory, regardless of local node id
* 1: Global MMR space
* 01: GET space.
* 10: AMO space.
* 11: Cacheable memory space.
*
* NodeOffset: byte offset
*
*
* TIO address format:
* +-+----------+--+--------------+
* |0| NASID |AS| Nodeoffset |
* +-+----------+--+--------------+
*
* NASID: (low NASID bit is 1) TIO
* AS: 2-bit Chiplet Identifier
* 00: TIO LB (Indicates TIO MMR access.)
* 01: TIO ICE (indicates coretalk space access.)
*
* NodeOffset: top bit must be set.
*
*
* Note that in both of the above address formats, the low
* NASID bit indicates if the reference is to the SHUB or TIO MMRs.
*/
/*
* Define basic shift & mask constants for manipulating NASIDs and AS values.
*/
#define NASID_BITMASK (sn_hub_info->nasid_bitmask)
#define NASID_SHIFT (sn_hub_info->nasid_shift)
#define AS_SHIFT (sn_hub_info->as_shift)
#define AS_BITMASK 0x3UL
#define NASID_MASK ((u64)NASID_BITMASK << NASID_SHIFT)
#define AS_MASK ((u64)AS_BITMASK << AS_SHIFT)
#define REGION_BITS 0xe000000000000000UL
/*
* AS values. These are the same on both SHUB1 & SHUB2.
*/
#define AS_GET_VAL 1UL
#define AS_AMO_VAL 2UL
#define AS_CAC_VAL 3UL
#define AS_GET_SPACE (AS_GET_VAL << AS_SHIFT)
#define AS_AMO_SPACE (AS_AMO_VAL << AS_SHIFT)
#define AS_CAC_SPACE (AS_CAC_VAL << AS_SHIFT)
/*
* Base addresses for various address ranges.
*/
#define CACHED 0xe000000000000000UL
#define UNCACHED 0xc000000000000000UL
#define UNCACHED_PHYS 0x8000000000000000UL
/*
* Virtual Mode Local & Global MMR space.
*/
#define SH1_LOCAL_MMR_OFFSET 0x8000000000UL
#define SH2_LOCAL_MMR_OFFSET 0x0200000000UL
#define LOCAL_MMR_OFFSET (is_shub2() ? SH2_LOCAL_MMR_OFFSET : SH1_LOCAL_MMR_OFFSET)
#define LOCAL_MMR_SPACE (UNCACHED | LOCAL_MMR_OFFSET)
#define LOCAL_PHYS_MMR_SPACE (UNCACHED_PHYS | LOCAL_MMR_OFFSET)
#define SH1_GLOBAL_MMR_OFFSET 0x0800000000UL
#define SH2_GLOBAL_MMR_OFFSET 0x0300000000UL
#define GLOBAL_MMR_OFFSET (is_shub2() ? SH2_GLOBAL_MMR_OFFSET : SH1_GLOBAL_MMR_OFFSET)
#define GLOBAL_MMR_SPACE (UNCACHED | GLOBAL_MMR_OFFSET)
/*
* Physical mode addresses
*/
#define GLOBAL_PHYS_MMR_SPACE (UNCACHED_PHYS | GLOBAL_MMR_OFFSET)
/*
* Clear region & AS bits.
*/
#define TO_PHYS_MASK (~(REGION_BITS | AS_MASK))
/*
* Misc NASID manipulation.
*/
#define NASID_SPACE(n) ((u64)(n) << NASID_SHIFT)
#define REMOTE_ADDR(n,a) (NASID_SPACE(n) | (a))
#define NODE_OFFSET(x) ((x) & (NODE_ADDRSPACE_SIZE - 1))
#define NODE_ADDRSPACE_SIZE (1UL << AS_SHIFT)
#define NASID_GET(x) (int) (((u64) (x) >> NASID_SHIFT) & NASID_BITMASK)
#define LOCAL_MMR_ADDR(a) (LOCAL_MMR_SPACE | (a))
#define GLOBAL_MMR_ADDR(n,a) (GLOBAL_MMR_SPACE | REMOTE_ADDR(n,a))
#define GLOBAL_MMR_PHYS_ADDR(n,a) (GLOBAL_PHYS_MMR_SPACE | REMOTE_ADDR(n,a))
#define GLOBAL_CAC_ADDR(n,a) (CAC_BASE | REMOTE_ADDR(n,a))
#define CHANGE_NASID(n,x) ((void *)(((u64)(x) & ~NASID_MASK) | NASID_SPACE(n)))
/* non-II mmr's start at top of big window space (4G) */
#define BWIN_TOP 0x0000000100000000UL
/*
* general address defines
*/
#define CAC_BASE (CACHED | AS_CAC_SPACE)
#define AMO_BASE (UNCACHED | AS_AMO_SPACE)
#define GET_BASE (CACHED | AS_GET_SPACE)
/*
* Convert Memory addresses between various addressing modes.
*/
#define TO_PHYS(x) (TO_PHYS_MASK & (x))
#define TO_CAC(x) (CAC_BASE | TO_PHYS(x))
#define TO_AMO(x) (AMO_BASE | TO_PHYS(x))
#define TO_GET(x) (GET_BASE | TO_PHYS(x))
/*
* Covert from processor physical address to II/TIO physical address:
* II - squeeze out the AS bits
* TIO- requires a chiplet id in bits 38-39. For DMA to memory,
* the chiplet id is zero. If we implement TIO-TIO dma, we might need
* to insert a chiplet id into this macro. However, it is our belief
* right now that this chiplet id will be ICE, which is also zero.
* Nasid starts on bit 40.
*/
#define PHYS_TO_TIODMA(x) ( (((u64)(NASID_GET(x))) << 40) | NODE_OFFSET(x))
#define PHYS_TO_DMA(x) ( (((u64)(x) & NASID_MASK) >> 2) | NODE_OFFSET(x))
/*
* The following definitions pertain to the IO special address
* space. They define the location of the big and little windows
* of any given node.
*/
#define BWIN_SIZE_BITS 29 /* big window size: 512M */
#define TIO_BWIN_SIZE_BITS 30 /* big window size: 1G */
#define NODE_SWIN_BASE(n, w) ((w == 0) ? NODE_BWIN_BASE((n), SWIN0_BIGWIN) \
: RAW_NODE_SWIN_BASE(n, w))
#define NODE_IO_BASE(n) (GLOBAL_MMR_SPACE | NASID_SPACE(n))
#define BWIN_SIZE (1UL << BWIN_SIZE_BITS)
#define NODE_BWIN_BASE0(n) (NODE_IO_BASE(n) + BWIN_SIZE)
#define NODE_BWIN_BASE(n, w) (NODE_BWIN_BASE0(n) + ((u64) (w) << BWIN_SIZE_BITS))
#define RAW_NODE_SWIN_BASE(n, w) (NODE_IO_BASE(n) + ((u64) (w) << SWIN_SIZE_BITS))
#define BWIN_WIDGET_MASK 0x7
#define BWIN_WINDOWNUM(x) (((x) >> BWIN_SIZE_BITS) & BWIN_WIDGET_MASK)
#define TIO_BWIN_WINDOW_SELECT_MASK 0x7
#define TIO_BWIN_WINDOWNUM(x) (((x) >> TIO_BWIN_SIZE_BITS) & TIO_BWIN_WINDOW_SELECT_MASK)
/*
* The following definitions pertain to the IO special address
* space. They define the location of the big and little windows
* of any given node.
*/
#define SWIN_SIZE_BITS 24
#define SWIN_WIDGET_MASK 0xF
#define TIO_SWIN_SIZE_BITS 28
#define TIO_SWIN_SIZE (1UL << TIO_SWIN_SIZE_BITS)
#define TIO_SWIN_WIDGET_MASK 0x3
/*
* Convert smallwindow address to xtalk address.
*
* 'addr' can be physical or virtual address, but will be converted
* to Xtalk address in the range 0 -> SWINZ_SIZEMASK
*/
#define SWIN_WIDGETNUM(x) (((x) >> SWIN_SIZE_BITS) & SWIN_WIDGET_MASK)
#define TIO_SWIN_WIDGETNUM(x) (((x) >> TIO_SWIN_SIZE_BITS) & TIO_SWIN_WIDGET_MASK)
/*
* The following macros produce the correct base virtual address for
* the hub registers. The REMOTE_HUB_* macro produce
* the address for the specified hub's registers. The intent is
* that the appropriate PI, MD, NI, or II register would be substituted
* for x.
*
* WARNING:
* When certain Hub chip workaround are defined, it's not sufficient
* to dereference the *_HUB_ADDR() macros. You should instead use
* HUB_L() and HUB_S() if you must deal with pointers to hub registers.
* Otherwise, the recommended approach is to use *_HUB_L() and *_HUB_S().
* They're always safe.
*/
#define REMOTE_HUB_ADDR(n,x) \
((n & 1) ? \
/* TIO: */ \
((volatile u64 *)(GLOBAL_MMR_ADDR(n,x))) \
: /* SHUB: */ \
(((x) & BWIN_TOP) ? ((volatile u64 *)(GLOBAL_MMR_ADDR(n,x)))\
: ((volatile u64 *)(NODE_SWIN_BASE(n,1) + 0x800000 + (x)))))
#define HUB_L(x) (*((volatile typeof(*x) *)x))
#define HUB_S(x,d) (*((volatile typeof(*x) *)x) = (d))
#define REMOTE_HUB_L(n, a) HUB_L(REMOTE_HUB_ADDR((n), (a)))
#define REMOTE_HUB_S(n, a, d) HUB_S(REMOTE_HUB_ADDR((n), (a)), (d))
#endif /* _ASM_IA64_SN_ADDRS_H */
|
