source: trunk/tools/arch_info/arch_info.h @ 1

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[1]1/*
2 * archinfo.h - Hardware Architecture Information structures
3 *
4 * Author  Alain Greiner (2016)
5 *
6 * Copyright (c)  UPMC Sorbonne Universites
7 *
8 * This file is part of ALMOS-MKH.
9 *
10 * ALMOS-MKH is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; version 2.0 of the License.
13 *
14 * ALMOS-MKH is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with ALMOS-MKH; if not, write to the Free Software Foundation,
21 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24#ifndef _ARCHINFO_H_
25#define _ARCHINFO_H_
26
27/****************************************************************************************
28 * The ARCHINFO data structure describes a generic manycore hardware architecture:
29 * - The number of cluster is variable (can be one).
30 * - The cluster topology is variable (2D mesh or vector)
31 * - The number of cores per cluster is variable (can be zero).
32 * - The number of addressable component per cluster is variable.
33 * - The size of the physical memory bank per cluster is variable.
34 * An adressable device componentcan can be a physical memory bank or a peripheral.
35 * Each cluster cover a fixed size segment in physical address space.
36 *
37 * It is loaded from the block device by the ALMOS-MKH bootloader as a BLOB.
38 * The ARCHINFO structure has a three levels hierarchical organisation:
39 * - the architecture contains a variable number of clusters.
40 * - each cluster contains a variable number of cores and a variable number of devices.
41 * - some device contains a variable number of input IRQs.
42
43 * The BLOB is organised as the concatenation of a fixed size header,
44 * and 4 variable size arrays of fixed size objects in the following order:
45 * 1 : archinfo_core_t     core[] 
46 * 2 : archinfo_cluster_t  cluster[] 
47 * 3 : archinfo_device_t   device[]
48 * 4 : archinfo_irq_t      irq[]   
49 ***************************************************************************************/
50
51#include <hal_types.h>
52
53#define ARCHINFO_HEADER_SIZE   sizeof(archinfo_header_t)
54#define ARCHINFO_CLUSTER_SIZE  sizeof(archinfo_cluster_t)
55#define ARCHINFO_CORE_SIZE     sizeof(archinfo_core_t)
56#define ARCHINFO_IRQ_SIZE      sizeof(archinfo_irq_t)
57#define ARCHINFO_DEVICE_SIZE   sizeof(archinfo_device_t)
58
59#define ARCHINFO_SIGNATURE   0xBABE2016
60
61/****************************************************************************************
62 * This enum defines the supported device types.
63 * The 16 MSB bits define the functionnal type.
64 * The 16 LSB bits define the implementation type.
65 * It must be consistent with values defined in file arch_class.py
66 ***************************************************************************************/
67
68enum deviceTypes
69{
70    DEV_TYPE_RAM       = 0x00000000,
71    DEV_TYPE_DMA       = 0x00010000,
72    DEV_TYPE_FBF       = 0x00020000,
73    DEV_TYPE_IOB       = 0x00030000,
74    DEV_TYPE_IOC_BDV   = 0x00040000,
75    DEV_TYPE_IOC_HBA   = 0x00040001,
76    DEV_TYPE_IOC_SDC   = 0x00040002,
77    DEV_TYPE_IOC_SPI   = 0x00040003,
78    DEV_TYPE_IOC_RDK   = 0x00040004,
79    DEV_TYPE_MMC       = 0x00050000,
80    DEV_TYPE_MWR_CPY   = 0x00060000,
81    DEV_TYPE_MWR_GCD   = 0x00060001,
82    DEV_TYPE_MWR_DCT   = 0x00060002,
83    DEV_TYPE_NIC       = 0x00070000,
84    DEV_TYPE_ROM       = 0x00080000,
85    DEV_TYPE_SIM       = 0x00090000,
86    DEV_TYPE_TIM       = 0x000A0000,
87    DEV_TYPE_TTY       = 0x000B0000,
88    DEV_TYPE_XCU       = 0x000C0000,
89    DEV_TYPE_PIC       = 0x000D0000,
90    DEV_TYPE_CMA       = 0x000E0000,
91};
92
93/****************************************************************************************
94 * This structure defines the ARCHINFO header.
95 * WARNING: the size of this structure (128 bytes) is used by the ALMOS-MKH bootloader.
96 ***************************************************************************************/
97
98typedef struct __attribute__((packed))  archinfo_header_s
99{
100    uint32_t    signature;       // must contain ARCH_INFO_SIGNATURE
101    uint32_t    x_size;          // number of clusters in a row
102    uint32_t    y_size;          // number of clusters in a column
103    uint32_t    paddr_width;     // number of bits for physical address
104    uint32_t    x_width;         // number of bits for x coordinate
105    uint32_t    y_width;         // number of bits for y coordinate
106    uint32_t    cores_max;       // max number of cores per cluster
107    uint32_t    devices_max;     // max number of devices per cluster
108
109    uint32_t    cores;           // total number of cores
110    uint32_t    devices;         // total number of devices
111    uint32_t    irqs;            // total number of irqs
112    uint32_t    io_cxy;          // io_cluster identifier
113    uint32_t    boot_cxy;        // boot_cluster identifier
114    uint32_t    irqs_per_core;   // number of IRQs per core
115    uint32_t    cache_line_size; // number of bytes
116    uint32_t    reserved;        // reserved
117
118    char        name[64];        // architecture name
119} 
120archinfo_header_t;
121
122
123/****************************************************************************************
124 * This structure defines the ARCHINFO cluster.
125 ***************************************************************************************/
126
127typedef struct __attribute__((packed))  archinfo_cluster_s
128{
129    uint32_t    cxy;             // cluster identifier
130    uint32_t    cores;           // number of cores in cluster
131    uint32_t    core_offset;     // global index of first core in cluster
132    uint32_t    devices;         // number of devices in cluster
133    uint32_t    device_offset;   // global index of first device in cluster
134} 
135archinfo_cluster_t;
136
137/****************************************************************************************
138 * This structure defines the ARCHINFO core descriptor.
139 * WARNING: the size of this structure (8 bytes) is used by the ALMOS-MKH bootloader.
140 ***************************************************************************************/
141
142typedef struct __attribute__((packed))  archinfo_core_s
143{
144    uint32_t    gid;             // core hardware identifier
145    uint16_t    lid;             // core local index in cluster
146    uint16_t    cxy;             // cluster identifier         
147} 
148archinfo_core_t;
149
150/****************************************************************************************
151 * This structure defines the ARCHINFO device descriptor.
152 ***************************************************************************************/
153
154typedef struct __attribute__((packed))  archinfo_device_s
155{
156    uint32_t    type;            // supported values defined above
157    uint64_t    base;            // base address in physical space
158    uint64_t    size;            // size (bytes)
159    uint32_t    channels;        // number of channels
160    uint32_t    arg0;            // semantic depends on device type
161    uint32_t    arg1;            // semantic depends on device type
162    uint32_t    arg2;            // semantic depends on device type
163    uint32_t    arg3;            // semantic depends on device type
164    uint32_t    irqs;            // number of input IRQs (for XCU or PIC)
165    uint32_t    irq_offset;      // global index of first IRQ
166} 
167archinfo_device_t; 
168
169/****************************************************************************************
170 * This structure defines the ARCHINFO input IRQs for XCU or PIC components.
171 * It describes the hardware connection from one device output IRQ (identified
172 * by the source device type, channel, and direction) to a PIC or XCU iput port.
173 ***************************************************************************************/
174
175typedef struct __attribute__((packed))  archinfo_irq_s
176{
177    uint32_t    dev_type;        // source device type index
178    uint8_t     channel;         // source device channel
179    uint8_t     is_rx;           // source device direction
180    uint8_t     port;            // input IRQ index (in XCU/PIC)
181    uint8_t     reserved;        // padding
182} 
183archinfo_irq_t; 
184
185/****************************************************************************
186 * These functions allows the boot-loader to get to the starting address    *
187 * of various ARCHINFO tables.                                              *
188 ****************************************************************************/
189
190inline archinfo_core_t* archinfo_get_core_base(archinfo_header_t* header)
191{
192    return (archinfo_core_t*)((char*)header                                 + 
193                              ARCHINFO_HEADER_SIZE);
194}
195
196inline archinfo_cluster_t* archinfo_get_cluster_base(archinfo_header_t* header)
197{
198    return (archinfo_cluster_t*)((char*)header                              + 
199                                 ARCHINFO_HEADER_SIZE                       +
200                                 ARCHINFO_CORE_SIZE * header->cores); 
201}
202                                 
203inline archinfo_device_t* archinfo_get_device_base(archinfo_header_t* header)
204{
205    return (archinfo_device_t*)((char*)header                               + 
206                                 ARCHINFO_HEADER_SIZE                       +
207                                 ARCHINFO_CORE_SIZE * header->cores         + 
208                                 ARCHINFO_CLUSTER_SIZE * header->x_size * 
209                                                         header->y_size);
210}
211
212inline archinfo_irq_t* archinfo_get_irq_base(archinfo_header_t* header)
213{
214    return (archinfo_irq_t*)((char*)header                                  + 
215                             ARCHINFO_HEADER_SIZE                           +
216                             ARCHINFO_CORE_SIZE * header->cores             + 
217                             ARCHINFO_CLUSTER_SIZE * header->x_size * 
218                                                     header->y_size         +
219                             ARCHINFO_DEVICE_SIZE * header->devices);
220}
221
222#endif  /* _ARCHINFO_H_ */
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