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
6 * Copyright (C) 2005 MIPS Technologies, Inc. All rights reserved.
7 * Copyright (C) 2013 Imagination Technologies Ltd.
12 #include <linux/init.h>
13 #include <linux/list.h>
14 #include <linux/smp.h>
15 #include <linux/spinlock.h>
17 #define VPE_MODULE_NAME "vpe"
18 #define VPE_MODULE_MINOR 1
20 /* grab the likely amount of memory we will need. */
21 #ifdef CONFIG_MIPS_VPE_LOADER_TOM
22 #define P_SIZE (2 * 1024 * 1024)
24 /* add an overhead to the max kmalloc size for non-striped symbols/etc */
25 #define P_SIZE (256 * 1024)
30 static inline int aprp_cpu_index(void)
32 #ifdef CONFIG_MIPS_CMP
33 return setup_max_cpus;
56 /* (device) minor associated with this vpe */
65 unsigned long __start;
67 /* tc's associated with this vpe */
70 /* The list of vpe's */
71 struct list_head list;
73 /* shared symbol address */
76 /* the list of who wants to know when something major happens */
77 struct list_head notify;
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 */
91 struct vpe_notifications {
92 void (*start)(int vpe);
93 void (*stop)(int vpe);
95 struct list_head list;
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 */
105 extern unsigned long physical_memsize;
106 extern struct vpe_control vpecontrol;
107 extern const struct file_operations vpe_fops;
109 int vpe_notify(int index, struct vpe_notifications *notify);
111 void *vpe_get_shared(int index);
113 struct vpe *get_vpe(int minor);
114 struct tc *get_tc(int index);
115 struct vpe *alloc_vpe(int minor);
116 struct tc *alloc_tc(int index);
117 void release_vpe(struct vpe *v);
119 void *alloc_progmem(unsigned long len);
120 void release_progmem(void *ptr);
122 int vpe_run(struct vpe *v);
123 void cleanup_tc(struct tc *tc);
125 int __init vpe_module_init(void);
126 void __exit vpe_module_exit(void);
127 #endif /* _ASM_VPE_H */