source: trunk/tools/arch_info/boot_info.h @ 257

Last change on this file since 257 was 219, checked in by max@…, 7 years ago

update comment
File size: 7.3 KB
Line 
1/*
2 * boot_info.h - informations passed by the bootloader to the kernel in each cluster.
3 *
4 * Author  Alain Greiner (june 2016,2017)
5 *
6 * Copyright (c) UPMC Sorbonne Universites
7 *
8 * This file is part of ALMOS-MKH
9 *
10 * ALMOS-kernel 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-kernel 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-kernel; if not, write to the Free Software Foundation,
21 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24#ifndef _BOOT_INFO_H_
25#define _BOOT_INFO_H_
26
27#include <hal_types.h>
28#include <kernel_config.h>
29
30/*********************************************************************************************
31 * Boot-Info binary file signature
32 ********************************************************************************************/
33
34#define BOOT_INFO_SIGNATURE    0x12344321
35
36/*********************************************************************************************
37 * This structure defines the mapping between the hard-wired core identifier,
38 * and the composite index (cluster_identifier , local index).
39 ********************************************************************************************/
40
41typedef struct boot_core_s
42{
43    gid_t    gid;                     /*! hardware identifier                               */
44    lid_t    lid;                     /*! local index in cluster                            */
45    cxy_t    cxy;                     /*! cluster identifier                                */
46}
47boot_core_t;
48
49/*********************************************************************************************
50 * This structure defines the hardware connexion from one source device (identified by
51 * the tuple (dev_type/channel/is_rx), to a PIC or XCU component (input IRQ index).
52 ********************************************************************************************/
53
54typedef struct boot_irq_s
55{
56    uint32_t    dev_type;             /*! source device functional type                     */
57    uint8_t     channel;              /*! source device channel index                       */
58    uint8_t     is_rx;                /*! source device direction                           */
59    uint8_t     valid;                /*! Boolean :input IRQ connected                      */
60    uint8_t     reserved;             /*! padding                                           */
61} 
62boot_irq_t; 
63
64/*********************************************************************************************
65 * This structure defines all informations associated to a device in a given cluster.
66 * There is one device descriptor per peripheral channel.
67 * The base address can be physical or virtual depending on the hardware architecture.
68 ********************************************************************************************/
69
70typedef struct boot_device_s
71{
72    uint64_t    base;                 /*! segment base address                              */
73    uint32_t    type;                 /*! peripheral type (func | impl)                     */
74    uint32_t    channels;             /*! number of channels                                */
75    uint32_t    param0;               /*! semantic depends on peripherat type               */
76    uint32_t    param1;               /*! semantic depends on peripherat type               */
77    uint32_t    param2;               /*! semantic depends on peripherat type               */
78    uint32_t    param3;               /*! semantic depends on peripherat type               */
79    uint32_t    irqs;                 /*! number of input IRQs (PIC only)                   */
80    boot_irq_t  irq[32];              /*! array of input IRQS (PIC only)                    */
81}
82boot_device_t;
83
84/*********************************************************************************************
85 * This structure defines a reserved zone in the physical address space of a given cluster.
86 * A reserved zone is described as a set of contiguous small pages (4 Kbytes) covering the
87 * reserved zone, that must be considered already allocated.
88 ********************************************************************************************/
89
90typedef struct boot_rsvd_s
91{
92    ppn_t      first_page;            /*! first physical page index in cluster              */ 
93    uint32_t   npages;                /*! number of small pages                             */
94}
95boot_rsvd_t;
96
97/*********************************************************************************************
98 * This structure defines the interface between the boot-loader and the kernel.
99 * In each cluster, the boot core build a local boot_info_t structure containing
100 * both global (trans-clusters) informations, and cluster specific informations.
101 ********************************************************************************************/
102
103typedef struct boot_info_s
104{
105    uint32_t      signature;                     /*! boot info signature                    */
106
107    // global platform parameters
108
109        uint32_t      paddr_width;                   /*! number of bits in physical address     */
110    uint32_t      x_width;                       /*! number of bits to code X coordinate    */
111    uint32_t      y_width;                       /*! number of bits to code Y coordinate    */
112        uint32_t      x_size;                        /*! number of cluster in a row             */
113        uint32_t      y_size;                        /*! number of cluster in a column          */
114        uint32_t      io_cxy;                        /*! IO cluster identifier                  */
115
116    // shared resources
117
118    uint32_t      ext_dev_nr;                    /*! number of external peripherals         */
119    boot_device_t ext_dev[CONFIG_MAX_EXT_DEV];   /*! array of external peripherals          */
120
121    // private resources (per cluster)
122
123        uint32_t      cxy;                           /*! cluster identifier                     */
124        uint32_t      cores_nr;                      /*! number of local cores in               */
125    boot_core_t   core[CONFIG_MAX_LOCAL_CORES];  /*! array of core descriptors              */ 
126    uint32_t      rsvd_nr;                       /*! number of reserved zones               */
127    boot_rsvd_t   rsvd[CONFIG_PPM_MAX_RSVD];     /*! array of reserved zones                */
128
129    uint32_t      int_dev_nr;                    /*! number of internal peripherals         */
130    boot_device_t int_dev[CONFIG_MAX_INT_DEV];   /*! array of internal peripherals          */
131
132    uint32_t      pages_offset;                  /*! first free page index (after kernel)   */
133    uint32_t      pages_nr;                      /*! total number of physical pages in RAM  */
134
135    // kernel segments
136
137    intptr_t      kernel_code_start;             /*! kernel code base paddr                 */
138    intptr_t      kernel_code_end;               /*! kernel code last paddr (excluded)      */
139    intptr_t      kernel_data_start;             /*! kernel data base paddr                 */
140    intptr_t      kernel_data_end;               /*! kernel data last paddr (excluded)      */
141}
142boot_info_t;
143
144#endif  /* _BOOT_INFO_H_ */
Note: See TracBrowser for help on using the repository browser.