Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 131 insertions, 0 deletions

diff --git a/include/asm-m68knommu/processor.h b/include/asm-m68knommu/processor.h
new file mode 100644
index 000000000000..85a054e758b1
--- /dev/null
+++ b/include/asm-m68knommu/processor.h
@@ -0,0 +1,131 @@
+/*
+ * include/asm-m68k/processor.h
+ *
+ * Copyright (C) 1995 Hamish Macdonald
+ */
+
+#ifndef __ASM_M68K_PROCESSOR_H
+#define __ASM_M68K_PROCESSOR_H
+
+/*
+ * Default implementation of macro that returns current
+ * instruction pointer ("program counter").
+ */
+#define current_text_addr() ({ __label__ _l; _l: &&_l;})
+
+#include <linux/config.h>
+#include <linux/threads.h>
+#include <asm/types.h>
+#include <asm/segment.h>
+#include <asm/fpu.h>
+#include <asm/ptrace.h>
+#include <asm/current.h>
+
+extern inline unsigned long rdusp(void)
+{
+#ifdef CONFIG_COLDFIRE
+        extern unsigned int sw_usp;
+        return(sw_usp);
+#else
+        unsigned long usp;
+        __asm__ __volatile__("move %/usp,%0" : "=a" (usp));
+        return usp;
+#endif
+}
+
+extern inline void wrusp(unsigned long usp)
+{
+#ifdef CONFIG_COLDFIRE
+        extern unsigned int sw_usp;
+        sw_usp = usp;
+#else
+        __asm__ __volatile__("move %0,%/usp" : : "a" (usp));
+#endif
+}
+
+/*
+ * User space process size: 3.75GB. This is hardcoded into a few places,
+ * so don't change it unless you know what you are doing.
+ */
+#define TASK_SIZE       (0xF0000000UL)
+
+/*
+ * This decides where the kernel will search for a free chunk of vm
+ * space during mmap's. We won't be using it
+ */
+#define TASK_UNMAPPED_BASE      0
+
+/* 
+ * if you change this structure, you must change the code and offsets
+ * in m68k/machasm.S
+ */
+   
+struct thread_struct {
+        unsigned long  ksp;             /* kernel stack pointer */
+        unsigned long  usp;             /* user stack pointer */
+        unsigned short sr;              /* saved status register */
+        unsigned short fs;              /* saved fs (sfc, dfc) */
+        unsigned long  crp[2];          /* cpu root pointer */
+        unsigned long  esp0;            /* points to SR of stack frame */
+        unsigned long  fp[8*3];
+        unsigned long  fpcntl[3];       /* fp control regs */
+        unsigned char  fpstate[FPSTATESIZE];  /* floating point state */
+};
+
+#define INIT_THREAD  { \
+        sizeof(init_stack) + (unsigned long) init_stack, 0, \
+        PS_S, __KERNEL_DS, \
+        {0, 0}, 0, {0,}, {0, 0, 0}, {0,}, \
+}
+
+/*
+ * Do necessary setup to start up a newly executed thread.
+ *
+ * pass the data segment into user programs if it exists,
+ * it can't hurt anything as far as I can tell
+ */
+#define start_thread(_regs, _pc, _usp)           \
+do {                                             \
+        set_fs(USER_DS); /* reads from user space */ \
+        (_regs)->pc = (_pc);                         \
+        if (current->mm)                             \
+                (_regs)->d5 = current->mm->start_data;   \
+        (_regs)->sr &= ~0x2000;                      \
+        wrusp(_usp);                                 \
+} while(0)
+
+/* Forward declaration, a strange C thing */
+struct task_struct;
+
+/* Free all resources held by a thread. */
+static inline void release_thread(struct task_struct *dead_task)
+{
+}
+
+/* Prepare to copy thread state - unlazy all lazy status */
+#define prepare_to_copy(tsk)    do { } while (0)
+
+extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
+
+/*
+ * Free current thread data structures etc..
+ */
+static inline void exit_thread(void)
+{
+}
+
+unsigned long thread_saved_pc(struct task_struct *tsk);
+unsigned long get_wchan(struct task_struct *p);
+
+#define KSTK_EIP(tsk)   \
+    ({                  \
+        unsigned long eip = 0;   \
+        if ((tsk)->thread.esp0 > PAGE_SIZE && \
+            (virt_addr_valid((tsk)->thread.esp0))) \
+              eip = ((struct pt_regs *) (tsk)->thread.esp0)->pc; \
+        eip; })
+#define KSTK_ESP(tsk)   ((tsk) == current ? rdusp() : (tsk)->thread.usp)
+
+#define cpu_relax()    do { } while (0)
+
+#endif