1 files changed, 178 insertions, 0 deletions

diff --git a/arch/avr32/include/asm/processor.h b/arch/avr32/include/asm/processor.h
new file mode 100644
index 000000000000..49a88f5a9d2f
--- /dev/null
+++ b/arch/avr32/include/asm/processor.h
@@ -0,0 +1,178 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * 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.
+ */
+#ifndef __ASM_AVR32_PROCESSOR_H
+#define __ASM_AVR32_PROCESSOR_H
+
+#include <asm/page.h>
+#include <asm/cache.h>
+
+#define TASK_SIZE       0x80000000
+
+#ifdef __KERNEL__
+#define STACK_TOP       TASK_SIZE
+#define STACK_TOP_MAX   STACK_TOP
+#endif
+
+#ifndef __ASSEMBLY__
+
+static inline void *current_text_addr(void)
+{
+        register void *pc asm("pc");
+        return pc;
+}
+
+enum arch_type {
+        ARCH_AVR32A,
+        ARCH_AVR32B,
+        ARCH_MAX
+};
+
+enum cpu_type {
+        CPU_MORGAN,
+        CPU_AT32AP,
+        CPU_MAX
+};
+
+enum tlb_config {
+        TLB_NONE,
+        TLB_SPLIT,
+        TLB_UNIFIED,
+        TLB_INVALID
+};
+
+#define AVR32_FEATURE_RMW       (1 << 0)
+#define AVR32_FEATURE_DSP       (1 << 1)
+#define AVR32_FEATURE_SIMD      (1 << 2)
+#define AVR32_FEATURE_OCD       (1 << 3)
+#define AVR32_FEATURE_PCTR      (1 << 4)
+#define AVR32_FEATURE_JAVA      (1 << 5)
+#define AVR32_FEATURE_FPU       (1 << 6)
+
+struct avr32_cpuinfo {
+        struct clk *clk;
+        unsigned long loops_per_jiffy;
+        enum arch_type arch_type;
+        enum cpu_type cpu_type;
+        unsigned short arch_revision;
+        unsigned short cpu_revision;
+        enum tlb_config tlb_config;
+        unsigned long features;
+        u32 device_id;
+
+        struct cache_info icache;
+        struct cache_info dcache;
+};
+
+static inline unsigned int avr32_get_manufacturer_id(struct avr32_cpuinfo *cpu)
+{
+        return (cpu->device_id >> 1) & 0x7f;
+}
+static inline unsigned int avr32_get_product_number(struct avr32_cpuinfo *cpu)
+{
+        return (cpu->device_id >> 12) & 0xffff;
+}
+static inline unsigned int avr32_get_chip_revision(struct avr32_cpuinfo *cpu)
+{
+        return (cpu->device_id >> 28) & 0x0f;
+}
+
+extern struct avr32_cpuinfo boot_cpu_data;
+
+#ifdef CONFIG_SMP
+extern struct avr32_cpuinfo cpu_data[];
+#define current_cpu_data cpu_data[smp_processor_id()]
+#else
+#define cpu_data (&boot_cpu_data)
+#define current_cpu_data boot_cpu_data
+#endif
+
+/* This decides where the kernel will search for a free chunk of vm
+ * space during mmap's
+ */
+#define TASK_UNMAPPED_BASE      (PAGE_ALIGN(TASK_SIZE / 3))
+
+#define cpu_relax()             barrier()
+#define cpu_sync_pipeline()     asm volatile("sub pc, -2" : : : "memory")
+
+struct cpu_context {
+        unsigned long sr;
+        unsigned long pc;
+        unsigned long ksp;      /* Kernel stack pointer */
+        unsigned long r7;
+        unsigned long r6;
+        unsigned long r5;
+        unsigned long r4;
+        unsigned long r3;
+        unsigned long r2;
+        unsigned long r1;
+        unsigned long r0;
+};
+
+/* This struct contains the CPU context as stored by switch_to() */
+struct thread_struct {
+        struct cpu_context cpu_context;
+        unsigned long single_step_addr;
+        u16 single_step_insn;
+};
+
+#define INIT_THREAD {                                           \
+        .cpu_context = {                                        \
+                .ksp = sizeof(init_stack) + (long)&init_stack,  \
+        },                                                      \
+}
+
+/*
+ * Do necessary setup to start up a newly executed thread.
+ */
+#define start_thread(regs, new_pc, new_sp)       \
+        do {                                     \
+                set_fs(USER_DS);                 \
+                memset(regs, 0, sizeof(*regs));  \
+                regs->sr = MODE_USER;            \
+                regs->pc = new_pc & ~1;          \
+                regs->sp = new_sp;               \
+        } while(0)
+
+struct task_struct;
+
+/* Free all resources held by a thread */
+extern void release_thread(struct task_struct *);
+
+/* Create a kernel thread without removing it from tasklists */
+extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
+
+/* Prepare to copy thread state - unlazy all lazy status */
+#define prepare_to_copy(tsk) do { } while(0)
+
+/* Return saved PC of a blocked thread */
+#define thread_saved_pc(tsk)    ((tsk)->thread.cpu_context.pc)
+
+struct pt_regs;
+extern unsigned long get_wchan(struct task_struct *p);
+extern void show_regs_log_lvl(struct pt_regs *regs, const char *log_lvl);
+extern void show_stack_log_lvl(struct task_struct *tsk, unsigned long sp,
+                               struct pt_regs *regs, const char *log_lvl);
+
+#define task_pt_regs(p) \
+        ((struct pt_regs *)(THREAD_SIZE + task_stack_page(p)) - 1)
+
+#define KSTK_EIP(tsk)   ((tsk)->thread.cpu_context.pc)
+#define KSTK_ESP(tsk)   ((tsk)->thread.cpu_context.ksp)
+
+#define ARCH_HAS_PREFETCH
+
+static inline void prefetch(const void *x)
+{
+        const char *c = x;
+        asm volatile("pref %0" : : "r"(c));
+}
+#define PREFETCH_STRIDE L1_CACHE_BYTES
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_AVR32_PROCESSOR_H */