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-rw-r--r--arch/mips/include/asm/vpe.h130
1 files changed, 130 insertions, 0 deletions
diff --git a/arch/mips/include/asm/vpe.h b/arch/mips/include/asm/vpe.h
new file mode 100644
index 000000000..7849f3978
--- /dev/null
+++ b/arch/mips/include/asm/vpe.h
@@ -0,0 +1,130 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2005 MIPS Technologies, Inc. All rights reserved.
+ * Copyright (C) 2013 Imagination Technologies Ltd.
+ */
+#ifndef _ASM_VPE_H
+#define _ASM_VPE_H
+
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/smp.h>
+#include <linux/spinlock.h>
+
+#define VPE_MODULE_NAME "vpe"
+#define VPE_MODULE_MINOR 1
+
+/* grab the likely amount of memory we will need. */
+#ifdef CONFIG_MIPS_VPE_LOADER_TOM
+#define P_SIZE (2 * 1024 * 1024)
+#else
+/* add an overhead to the max kmalloc size for non-striped symbols/etc */
+#define P_SIZE (256 * 1024)
+#endif
+
+#define MAX_VPES 16
+#define VPE_PATH_MAX 256
+
+static inline int aprp_cpu_index(void)
+{
+#ifdef CONFIG_MIPS_CMP
+ return setup_max_cpus;
+#else
+ extern int tclimit;
+ return tclimit;
+#endif
+}
+
+enum vpe_state {
+ VPE_STATE_UNUSED = 0,
+ VPE_STATE_INUSE,
+ VPE_STATE_RUNNING
+};
+
+enum tc_state {
+ TC_STATE_UNUSED = 0,
+ TC_STATE_INUSE,
+ TC_STATE_RUNNING,
+ TC_STATE_DYNAMIC
+};
+
+struct vpe {
+ enum vpe_state state;
+
+ /* (device) minor associated with this vpe */
+ int minor;
+
+ /* elfloader stuff */
+ void *load_addr;
+ unsigned long len;
+ char *pbuffer;
+ unsigned long plen;
+ char cwd[VPE_PATH_MAX];
+
+ unsigned long __start;
+
+ /* tc's associated with this vpe */
+ struct list_head tc;
+
+ /* The list of vpe's */
+ struct list_head list;
+
+ /* shared symbol address */
+ void *shared_ptr;
+
+ /* the list of who wants to know when something major happens */
+ struct list_head notify;
+
+ unsigned int ntcs;
+};
+
+struct tc {
+ enum tc_state state;
+ int index;
+
+ struct vpe *pvpe; /* parent VPE */
+ struct list_head tc; /* The list of TC's with this VPE */
+ struct list_head list; /* The global list of tc's */
+};
+
+struct vpe_notifications {
+ void (*start)(int vpe);
+ void (*stop)(int vpe);
+
+ struct list_head list;
+};
+
+struct vpe_control {
+ spinlock_t vpe_list_lock;
+ struct list_head vpe_list; /* Virtual processing elements */
+ spinlock_t tc_list_lock;
+ struct list_head tc_list; /* Thread contexts */
+};
+
+extern unsigned long physical_memsize;
+extern struct vpe_control vpecontrol;
+extern const struct file_operations vpe_fops;
+
+int vpe_notify(int index, struct vpe_notifications *notify);
+
+void *vpe_get_shared(int index);
+char *vpe_getcwd(int index);
+
+struct vpe *get_vpe(int minor);
+struct tc *get_tc(int index);
+struct vpe *alloc_vpe(int minor);
+struct tc *alloc_tc(int index);
+void release_vpe(struct vpe *v);
+
+void *alloc_progmem(unsigned long len);
+void release_progmem(void *ptr);
+
+int __weak vpe_run(struct vpe *v);
+void cleanup_tc(struct tc *tc);
+
+int __init vpe_module_init(void);
+void __exit vpe_module_exit(void);
+#endif /* _ASM_VPE_H */