summaryrefslogtreecommitdiffstats
path: root/drivers/dma/ioat/registers.h
blob: 1391798542b66756b9ac0e811e64a683a65b77e8 (plain)
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
240
241
242
243
244
245
246
247
248
249
/*
 * Copyright(c) 2004 - 2009 Intel Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59
 * Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * The full GNU General Public License is included in this distribution in the
 * file called COPYING.
 */
#ifndef _IOAT_REGISTERS_H_
#define _IOAT_REGISTERS_H_

#define IOAT_PCI_DMACTRL_OFFSET			0x48
#define IOAT_PCI_DMACTRL_DMA_EN			0x00000001
#define IOAT_PCI_DMACTRL_MSI_EN			0x00000002

#define IOAT_PCI_DEVICE_ID_OFFSET		0x02
#define IOAT_PCI_DMAUNCERRSTS_OFFSET		0x148
#define IOAT_PCI_CHANERR_INT_OFFSET		0x180
#define IOAT_PCI_CHANERRMASK_INT_OFFSET		0x184

/* MMIO Device Registers */
#define IOAT_CHANCNT_OFFSET			0x00	/*  8-bit */

#define IOAT_XFERCAP_OFFSET			0x01	/*  8-bit */
#define IOAT_XFERCAP_4KB			12
#define IOAT_XFERCAP_8KB			13
#define IOAT_XFERCAP_16KB			14
#define IOAT_XFERCAP_32KB			15
#define IOAT_XFERCAP_32GB			0

#define IOAT_GENCTRL_OFFSET			0x02	/*  8-bit */
#define IOAT_GENCTRL_DEBUG_EN			0x01

#define IOAT_INTRCTRL_OFFSET			0x03	/*  8-bit */
#define IOAT_INTRCTRL_MASTER_INT_EN		0x01	/* Master Interrupt Enable */
#define IOAT_INTRCTRL_INT_STATUS		0x02	/* ATTNSTATUS -or- Channel Int */
#define IOAT_INTRCTRL_INT			0x04	/* INT_STATUS -and- MASTER_INT_EN */
#define IOAT_INTRCTRL_MSIX_VECTOR_CONTROL	0x08	/* Enable all MSI-X vectors */

#define IOAT_ATTNSTATUS_OFFSET			0x04	/* Each bit is a channel */

#define IOAT_VER_OFFSET				0x08	/*  8-bit */
#define IOAT_VER_MAJOR_MASK			0xF0
#define IOAT_VER_MINOR_MASK			0x0F
#define GET_IOAT_VER_MAJOR(x)			(((x) & IOAT_VER_MAJOR_MASK) >> 4)
#define GET_IOAT_VER_MINOR(x)			((x) & IOAT_VER_MINOR_MASK)

#define IOAT_PERPORTOFFSET_OFFSET		0x0A	/* 16-bit */

#define IOAT_INTRDELAY_OFFSET			0x0C	/* 16-bit */
#define IOAT_INTRDELAY_MASK			0x3FFF	/* Interrupt Delay Time */
#define IOAT_INTRDELAY_COALESE_SUPPORT		0x8000	/* Interrupt Coalescing Supported */

#define IOAT_DEVICE_STATUS_OFFSET		0x0E	/* 16-bit */
#define IOAT_DEVICE_STATUS_DEGRADED_MODE	0x0001
#define IOAT_DEVICE_MMIO_RESTRICTED		0x0002
#define IOAT_DEVICE_MEMORY_BYPASS		0x0004
#define IOAT_DEVICE_ADDRESS_REMAPPING		0x0008

#define IOAT_DMA_CAP_OFFSET			0x10	/* 32-bit */
#define IOAT_CAP_PAGE_BREAK			0x00000001
#define IOAT_CAP_CRC				0x00000002
#define IOAT_CAP_SKIP_MARKER			0x00000004
#define IOAT_CAP_DCA				0x00000010
#define IOAT_CAP_CRC_MOVE			0x00000020
#define IOAT_CAP_FILL_BLOCK			0x00000040
#define IOAT_CAP_APIC				0x00000080
#define IOAT_CAP_XOR				0x00000100
#define IOAT_CAP_PQ				0x00000200

#define IOAT_CHANNEL_MMIO_SIZE			0x80	/* Each Channel MMIO space is this size */

/* DMA Channel Registers */
#define IOAT_CHANCTRL_OFFSET			0x00	/* 16-bit Channel Control Register */
#define IOAT_CHANCTRL_CHANNEL_PRIORITY_MASK	0xF000
#define IOAT3_CHANCTRL_COMPL_DCA_EN		0x0200
#define IOAT_CHANCTRL_CHANNEL_IN_USE		0x0100
#define IOAT_CHANCTRL_DESCRIPTOR_ADDR_SNOOP_CONTROL	0x0020
#define IOAT_CHANCTRL_ERR_INT_EN		0x0010
#define IOAT_CHANCTRL_ANY_ERR_ABORT_EN		0x0008
#define IOAT_CHANCTRL_ERR_COMPLETION_EN		0x0004
#define IOAT_CHANCTRL_INT_REARM			0x0001
#define IOAT_CHANCTRL_RUN			(IOAT_CHANCTRL_INT_REARM |\
						 IOAT_CHANCTRL_ANY_ERR_ABORT_EN)

#define IOAT_DMA_COMP_OFFSET			0x02	/* 16-bit DMA channel compatibility */
#define IOAT_DMA_COMP_V1			0x0001	/* Compatibility with DMA version 1 */
#define IOAT_DMA_COMP_V2			0x0002	/* Compatibility with DMA version 2 */


#define IOAT1_CHANSTS_OFFSET		0x04	/* 64-bit Channel Status Register */
#define IOAT2_CHANSTS_OFFSET		0x08	/* 64-bit Channel Status Register */
#define IOAT_CHANSTS_OFFSET(ver)		((ver) < IOAT_VER_2_0 \
						? IOAT1_CHANSTS_OFFSET : IOAT2_CHANSTS_OFFSET)
#define IOAT1_CHANSTS_OFFSET_LOW	0x04
#define IOAT2_CHANSTS_OFFSET_LOW	0x08
#define IOAT_CHANSTS_OFFSET_LOW(ver)		((ver) < IOAT_VER_2_0 \
						? IOAT1_CHANSTS_OFFSET_LOW : IOAT2_CHANSTS_OFFSET_LOW)
#define IOAT1_CHANSTS_OFFSET_HIGH	0x08
#define IOAT2_CHANSTS_OFFSET_HIGH	0x0C
#define IOAT_CHANSTS_OFFSET_HIGH(ver)		((ver) < IOAT_VER_2_0 \
						? IOAT1_CHANSTS_OFFSET_HIGH : IOAT2_CHANSTS_OFFSET_HIGH)
#define IOAT_CHANSTS_COMPLETED_DESCRIPTOR_ADDR	(~0x3fULL)
#define IOAT_CHANSTS_SOFT_ERR			0x10ULL
#define IOAT_CHANSTS_UNAFFILIATED_ERR		0x8ULL
#define IOAT_CHANSTS_STATUS	0x7ULL
#define IOAT_CHANSTS_ACTIVE	0x0
#define IOAT_CHANSTS_DONE	0x1
#define IOAT_CHANSTS_SUSPENDED	0x2
#define IOAT_CHANSTS_HALTED	0x3



#define IOAT_CHAN_DMACOUNT_OFFSET	0x06    /* 16-bit DMA Count register */

#define IOAT_DCACTRL_OFFSET         0x30   /* 32 bit Direct Cache Access Control Register */
#define IOAT_DCACTRL_CMPL_WRITE_ENABLE 0x10000
#define IOAT_DCACTRL_TARGET_CPU_MASK   0xFFFF /* APIC ID */

/* CB DCA Memory Space Registers */
#define IOAT_DCAOFFSET_OFFSET       0x14
/* CB_BAR + IOAT_DCAOFFSET value */
#define IOAT_DCA_VER_OFFSET         0x00
#define IOAT_DCA_VER_MAJOR_MASK     0xF0
#define IOAT_DCA_VER_MINOR_MASK     0x0F

#define IOAT_DCA_COMP_OFFSET        0x02
#define IOAT_DCA_COMP_V1            0x1

#define IOAT_FSB_CAPABILITY_OFFSET  0x04
#define IOAT_FSB_CAPABILITY_PREFETCH    0x1

#define IOAT_PCI_CAPABILITY_OFFSET  0x06
#define IOAT_PCI_CAPABILITY_MEMWR   0x1

#define IOAT_FSB_CAP_ENABLE_OFFSET  0x08
#define IOAT_FSB_CAP_ENABLE_PREFETCH    0x1

#define IOAT_PCI_CAP_ENABLE_OFFSET  0x0A
#define IOAT_PCI_CAP_ENABLE_MEMWR   0x1

#define IOAT_APICID_TAG_MAP_OFFSET  0x0C
#define IOAT_APICID_TAG_MAP_TAG0    0x0000000F
#define IOAT_APICID_TAG_MAP_TAG0_SHIFT 0
#define IOAT_APICID_TAG_MAP_TAG1    0x000000F0
#define IOAT_APICID_TAG_MAP_TAG1_SHIFT 4
#define IOAT_APICID_TAG_MAP_TAG2    0x00000F00
#define IOAT_APICID_TAG_MAP_TAG2_SHIFT 8
#define IOAT_APICID_TAG_MAP_TAG3    0x0000F000
#define IOAT_APICID_TAG_MAP_TAG3_SHIFT 12
#define IOAT_APICID_TAG_MAP_TAG4    0x000F0000
#define IOAT_APICID_TAG_MAP_TAG4_SHIFT 16
#define IOAT_APICID_TAG_CB2_VALID   0x8080808080

#define IOAT_DCA_GREQID_OFFSET      0x10
#define IOAT_DCA_GREQID_SIZE        0x04
#define IOAT_DCA_GREQID_MASK        0xFFFF
#define IOAT_DCA_GREQID_IGNOREFUN   0x10000000
#define IOAT_DCA_GREQID_VALID       0x20000000
#define IOAT_DCA_GREQID_LASTID      0x80000000

#define IOAT3_CSI_CAPABILITY_OFFSET 0x08
#define IOAT3_CSI_CAPABILITY_PREFETCH    0x1

#define IOAT3_PCI_CAPABILITY_OFFSET 0x0A
#define IOAT3_PCI_CAPABILITY_MEMWR  0x1

#define IOAT3_CSI_CONTROL_OFFSET    0x0C
#define IOAT3_CSI_CONTROL_PREFETCH  0x1

#define IOAT3_PCI_CONTROL_OFFSET    0x0E
#define IOAT3_PCI_CONTROL_MEMWR     0x1

#define IOAT3_APICID_TAG_MAP_OFFSET 0x10
#define IOAT3_APICID_TAG_MAP_OFFSET_LOW  0x10
#define IOAT3_APICID_TAG_MAP_OFFSET_HIGH 0x14

#define IOAT3_DCA_GREQID_OFFSET     0x02

#define IOAT1_CHAINADDR_OFFSET		0x0C	/* 64-bit Descriptor Chain Address Register */
#define IOAT2_CHAINADDR_OFFSET		0x10	/* 64-bit Descriptor Chain Address Register */
#define IOAT_CHAINADDR_OFFSET(ver)		((ver) < IOAT_VER_2_0 \
						? IOAT1_CHAINADDR_OFFSET : IOAT2_CHAINADDR_OFFSET)
#define IOAT1_CHAINADDR_OFFSET_LOW	0x0C
#define IOAT2_CHAINADDR_OFFSET_LOW	0x10
#define IOAT_CHAINADDR_OFFSET_LOW(ver)		((ver) < IOAT_VER_2_0 \
						? IOAT1_CHAINADDR_OFFSET_LOW : IOAT2_CHAINADDR_OFFSET_LOW)
#define IOAT1_CHAINADDR_OFFSET_HIGH	0x10
#define IOAT2_CHAINADDR_OFFSET_HIGH	0x14
#define IOAT_CHAINADDR_OFFSET_HIGH(ver)		((ver) < IOAT_VER_2_0 \
						? IOAT1_CHAINADDR_OFFSET_HIGH : IOAT2_CHAINADDR_OFFSET_HIGH)

#define IOAT1_CHANCMD_OFFSET		0x14	/*  8-bit DMA Channel Command Register */
#define IOAT2_CHANCMD_OFFSET		0x04	/*  8-bit DMA Channel Command Register */
#define IOAT_CHANCMD_OFFSET(ver)		((ver) < IOAT_VER_2_0 \
						? IOAT1_CHANCMD_OFFSET : IOAT2_CHANCMD_OFFSET)
#define IOAT_CHANCMD_RESET			0x20
#define IOAT_CHANCMD_RESUME			0x10
#define IOAT_CHANCMD_ABORT			0x08
#define IOAT_CHANCMD_SUSPEND			0x04
#define IOAT_CHANCMD_APPEND			0x02
#define IOAT_CHANCMD_START			0x01

#define IOAT_CHANCMP_OFFSET			0x18	/* 64-bit Channel Completion Address Register */
#define IOAT_CHANCMP_OFFSET_LOW			0x18
#define IOAT_CHANCMP_OFFSET_HIGH		0x1C

#define IOAT_CDAR_OFFSET			0x20	/* 64-bit Current Descriptor Address Register */
#define IOAT_CDAR_OFFSET_LOW			0x20
#define IOAT_CDAR_OFFSET_HIGH			0x24

#define IOAT_CHANERR_OFFSET			0x28	/* 32-bit Channel Error Register */
#define IOAT_CHANERR_SRC_ADDR_ERR	0x0001
#define IOAT_CHANERR_DEST_ADDR_ERR	0x0002
#define IOAT_CHANERR_NEXT_ADDR_ERR	0x0004
#define IOAT_CHANERR_NEXT_DESC_ALIGN_ERR	0x0008
#define IOAT_CHANERR_CHAIN_ADDR_VALUE_ERR	0x0010
#define IOAT_CHANERR_CHANCMD_ERR		0x0020
#define IOAT_CHANERR_CHIPSET_UNCORRECTABLE_DATA_INTEGRITY_ERR	0x0040
#define IOAT_CHANERR_DMA_UNCORRECTABLE_DATA_INTEGRITY_ERR	0x0080
#define IOAT_CHANERR_READ_DATA_ERR		0x0100
#define IOAT_CHANERR_WRITE_DATA_ERR		0x0200
#define IOAT_CHANERR_CONTROL_ERR	0x0400
#define IOAT_CHANERR_LENGTH_ERR	0x0800
#define IOAT_CHANERR_COMPLETION_ADDR_ERR	0x1000
#define IOAT_CHANERR_INT_CONFIGURATION_ERR	0x2000
#define IOAT_CHANERR_SOFT_ERR			0x4000
#define IOAT_CHANERR_UNAFFILIATED_ERR		0x8000
#define IOAT_CHANERR_XOR_P_OR_CRC_ERR		0x10000
#define IOAT_CHANERR_XOR_Q_ERR			0x20000
#define IOAT_CHANERR_DESCRIPTOR_COUNT_ERR	0x40000

#define IOAT_CHANERR_HANDLE_MASK (IOAT_CHANERR_XOR_P_OR_CRC_ERR | IOAT_CHANERR_XOR_Q_ERR)

#define IOAT_CHANERR_MASK_OFFSET		0x2C	/* 32-bit Channel Error Register */

#endif /* _IOAT_REGISTERS_H_ */
OpenPOWER on IntegriCloud