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Diffstat (limited to 'include/asm-arm/proc-armv/processor.h')
-rw-r--r--include/asm-arm/proc-armv/processor.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/include/asm-arm/proc-armv/processor.h b/include/asm-arm/proc-armv/processor.h
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+++ b/include/asm-arm/proc-armv/processor.h
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+/*
+ * linux/include/asm-arm/proc-armv/processor.h
+ *
+ * Copyright (C) 1996-1999 Russell King.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Changelog:
+ * 20-09-1996 RMK Created
+ * 26-09-1996 RMK Added 'EXTRA_THREAD_STRUCT*'
+ * 28-09-1996 RMK Moved start_thread into the processor dependencies
+ * 09-09-1998 PJB Delete redundant `wp_works_ok'
+ * 30-05-1999 PJB Save sl across context switches
+ * 31-07-1999 RMK Added 'domain' stuff
+ */
+#ifndef __ASM_PROC_PROCESSOR_H
+#define __ASM_PROC_PROCESSOR_H
+
+#include <asm/proc/domain.h>
+
+#define KERNEL_STACK_SIZE PAGE_SIZE
+
+struct context_save_struct {
+ unsigned long cpsr;
+ unsigned long r4;
+ unsigned long r5;
+ unsigned long r6;
+ unsigned long r7;
+ unsigned long r8;
+ unsigned long r9;
+ unsigned long sl;
+ unsigned long fp;
+ unsigned long pc;
+};
+
+#define INIT_CSS (struct context_save_struct){ SVC_MODE, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
+
+#define EXTRA_THREAD_STRUCT \
+ unsigned int domain;
+
+#define EXTRA_THREAD_STRUCT_INIT \
+ domain: domain_val(DOMAIN_USER, DOMAIN_CLIENT) | \
+ domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \
+ domain_val(DOMAIN_IO, DOMAIN_CLIENT)
+
+#define start_thread(regs,pc,sp) \
+({ \
+ unsigned long *stack = (unsigned long *)sp; \
+ set_fs(USER_DS); \
+ memzero(regs->uregs, sizeof(regs->uregs)); \
+ if (current->personality & ADDR_LIMIT_32BIT) \
+ regs->ARM_cpsr = USR_MODE; \
+ else \
+ regs->ARM_cpsr = USR26_MODE; \
+ regs->ARM_pc = pc; /* pc */ \
+ regs->ARM_sp = sp; /* sp */ \
+ regs->ARM_r2 = stack[2]; /* r2 (envp) */ \
+ regs->ARM_r1 = stack[1]; /* r1 (argv) */ \
+ regs->ARM_r0 = stack[0]; /* r0 (argc) */ \
+})
+
+#define KSTK_EIP(tsk) (((unsigned long *)(4096+(unsigned long)(tsk)))[1019])
+#define KSTK_ESP(tsk) (((unsigned long *)(4096+(unsigned long)(tsk)))[1017])
+
+/* Allocation and freeing of basic task resources. */
+/*
+ * NOTE! The task struct and the stack go together
+ */
+#define ll_alloc_task_struct() ((struct task_struct *) __get_free_pages(GFP_KERNEL,1))
+#define ll_free_task_struct(p) free_pages((unsigned long)(p),1)
+
+#endif