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1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2005 MIPS Technologies, Inc. All rights reserved.
7 * Copyright (C) 2013 Imagination Technologies Ltd.
8 */
9#ifndef _ASM_VPE_H
10#define _ASM_VPE_H
11
12#include <linux/init.h>
13#include <linux/list.h>
14#include <linux/smp.h>
15#include <linux/spinlock.h>
16
17#define VPE_MODULE_NAME "vpe"
18#define VPE_MODULE_MINOR 1
19
20/* grab the likely amount of memory we will need. */
21#ifdef CONFIG_MIPS_VPE_LOADER_TOM
22#define P_SIZE (2 * 1024 * 1024)
23#else
24/* add an overhead to the max kmalloc size for non-striped symbols/etc */
25#define P_SIZE (256 * 1024)
26#endif
27
28#define MAX_VPES 16
29
30static inline int aprp_cpu_index(void)
31{
32#ifdef CONFIG_MIPS_CMP
33 return setup_max_cpus;
34#else
35 extern int tclimit;
36 return tclimit;
37#endif
38}
39
40enum vpe_state {
41 VPE_STATE_UNUSED = 0,
42 VPE_STATE_INUSE,
43 VPE_STATE_RUNNING
44};
45
46enum tc_state {
47 TC_STATE_UNUSED = 0,
48 TC_STATE_INUSE,
49 TC_STATE_RUNNING,
50 TC_STATE_DYNAMIC
51};
52
53struct vpe {
54 enum vpe_state state;
55
56 /* (device) minor associated with this vpe */
57 int minor;
58
59 /* elfloader stuff */
60 void *load_addr;
61 unsigned long len;
62 char *pbuffer;
63 unsigned long plen;
64
65 unsigned long __start;
66
67 /* tc's associated with this vpe */
68 struct list_head tc;
69
70 /* The list of vpe's */
71 struct list_head list;
72
73 /* shared symbol address */
74 void *shared_ptr;
75
76 /* the list of who wants to know when something major happens */
77 struct list_head notify;
78
79 unsigned int ntcs;
80};
81
82struct tc {
83 enum tc_state state;
84 int index;
85
86 struct vpe *pvpe; /* parent VPE */
87 struct list_head tc; /* The list of TC's with this VPE */
88 struct list_head list; /* The global list of tc's */
89};
90
91struct vpe_notifications {
92 void (*start)(int vpe);
93 void (*stop)(int vpe);
94
95 struct list_head list;
96};
97
98struct vpe_control {
99 spinlock_t vpe_list_lock;
100 struct list_head vpe_list; /* Virtual processing elements */
101 spinlock_t tc_list_lock;
102 struct list_head tc_list; /* Thread contexts */
103};
104
105extern unsigned long physical_memsize;
106extern struct vpe_control vpecontrol;
107extern const struct file_operations vpe_fops;
108
109int vpe_notify(int index, struct vpe_notifications *notify);
110
111void *vpe_get_shared(int index);
112
113struct vpe *get_vpe(int minor);
114struct tc *get_tc(int index);
115struct vpe *alloc_vpe(int minor);
116struct tc *alloc_tc(int index);
117void release_vpe(struct vpe *v);
118
119void *alloc_progmem(unsigned long len);
120void release_progmem(void *ptr);
121
122int vpe_run(struct vpe *v);
123void cleanup_tc(struct tc *tc);
124
125int __init vpe_module_init(void);
126void __exit vpe_module_exit(void);
127#endif /* _ASM_VPE_H */
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2005 MIPS Technologies, Inc. All rights reserved.
7 * Copyright (C) 2013 Imagination Technologies Ltd.
8 */
9#ifndef _ASM_VPE_H
10#define _ASM_VPE_H
11
12#include <linux/init.h>
13#include <linux/list.h>
14#include <linux/smp.h>
15#include <linux/spinlock.h>
16
17#define VPE_MODULE_NAME "vpe"
18#define VPE_MODULE_MINOR 1
19
20/* grab the likely amount of memory we will need. */
21#ifdef CONFIG_MIPS_VPE_LOADER_TOM
22#define P_SIZE (2 * 1024 * 1024)
23#else
24/* add an overhead to the max kmalloc size for non-striped symbols/etc */
25#define P_SIZE (256 * 1024)
26#endif
27
28#define MAX_VPES 16
29
30static inline int aprp_cpu_index(void)
31{
32#ifdef CONFIG_MIPS_CMP
33 return setup_max_cpus;
34#else
35 extern int tclimit;
36 return tclimit;
37#endif
38}
39
40enum vpe_state {
41 VPE_STATE_UNUSED = 0,
42 VPE_STATE_INUSE,
43 VPE_STATE_RUNNING
44};
45
46enum tc_state {
47 TC_STATE_UNUSED = 0,
48 TC_STATE_INUSE,
49 TC_STATE_RUNNING,
50 TC_STATE_DYNAMIC
51};
52
53struct vpe {
54 enum vpe_state state;
55
56 /* (device) minor associated with this vpe */
57 int minor;
58
59 /* elfloader stuff */
60 void *load_addr;
61 unsigned long len;
62 char *pbuffer;
63 unsigned long plen;
64
65 unsigned long __start;
66
67 /* tc's associated with this vpe */
68 struct list_head tc;
69
70 /* The list of vpe's */
71 struct list_head list;
72
73 /* shared symbol address */
74 void *shared_ptr;
75
76 /* the list of who wants to know when something major happens */
77 struct list_head notify;
78
79 unsigned int ntcs;
80};
81
82struct tc {
83 enum tc_state state;
84 int index;
85
86 struct vpe *pvpe; /* parent VPE */
87 struct list_head tc; /* The list of TC's with this VPE */
88 struct list_head list; /* The global list of tc's */
89};
90
91struct vpe_notifications {
92 void (*start)(int vpe);
93 void (*stop)(int vpe);
94
95 struct list_head list;
96};
97
98struct vpe_control {
99 spinlock_t vpe_list_lock;
100 struct list_head vpe_list; /* Virtual processing elements */
101 spinlock_t tc_list_lock;
102 struct list_head tc_list; /* Thread contexts */
103};
104
105extern unsigned long physical_memsize;
106extern struct vpe_control vpecontrol;
107extern const struct file_operations vpe_fops;
108
109int vpe_notify(int index, struct vpe_notifications *notify);
110
111void *vpe_get_shared(int index);
112
113struct vpe *get_vpe(int minor);
114struct tc *get_tc(int index);
115struct vpe *alloc_vpe(int minor);
116struct tc *alloc_tc(int index);
117void release_vpe(struct vpe *v);
118
119void *alloc_progmem(unsigned long len);
120void release_progmem(void *ptr);
121
122int vpe_run(struct vpe *v);
123void cleanup_tc(struct tc *tc);
124
125int __init vpe_module_init(void);
126void __exit vpe_module_exit(void);
127#endif /* _ASM_VPE_H */