Linux-2.6.12-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!
diff --git a/include/asm-sh64/system.h b/include/asm-sh64/system.h
new file mode 100644
index 0000000..42510e4
--- /dev/null
+++ b/include/asm-sh64/system.h
@@ -0,0 +1,195 @@
+#ifndef __ASM_SH64_SYSTEM_H
+#define __ASM_SH64_SYSTEM_H
+
+/*
+ * 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.
+ *
+ * include/asm-sh64/system.h
+ *
+ * Copyright (C) 2000, 2001 Paolo Alberelli
+ * Copyright (C) 2003 Paul Mundt
+ * Copyright (C) 2004 Richard Curnow
+ *
+ */
+
+#include <linux/config.h>
+#include <asm/registers.h>
+#include <asm/processor.h>
+
+/*
+ * switch_to() should switch tasks to task nr n, first
+ */
+
+typedef struct {
+ unsigned long seg;
+} mm_segment_t;
+
+extern struct task_struct *sh64_switch_to(struct task_struct *prev,
+ struct thread_struct *prev_thread,
+ struct task_struct *next,
+ struct thread_struct *next_thread);
+
+#define switch_to(prev,next,last) \
+ do {\
+ if (last_task_used_math != next) {\
+ struct pt_regs *regs = next->thread.uregs;\
+ if (regs) regs->sr |= SR_FD;\
+ }\
+ last = sh64_switch_to(prev, &prev->thread, next, &next->thread);\
+ } while(0)
+
+#define nop() __asm__ __volatile__ ("nop")
+
+#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
+
+#define tas(ptr) (xchg((ptr), 1))
+
+extern void __xchg_called_with_bad_pointer(void);
+
+#define mb() __asm__ __volatile__ ("synco": : :"memory")
+#define rmb() mb()
+#define wmb() __asm__ __volatile__ ("synco": : :"memory")
+#define read_barrier_depends() do { } while (0)
+
+#ifdef CONFIG_SMP
+#define smp_mb() mb()
+#define smp_rmb() rmb()
+#define smp_wmb() wmb()
+#define smp_read_barrier_depends() read_barrier_depends()
+#else
+#define smp_mb() barrier()
+#define smp_rmb() barrier()
+#define smp_wmb() barrier()
+#define smp_read_barrier_depends() do { } while (0)
+#endif /* CONFIG_SMP */
+
+#define set_rmb(var, value) do { xchg(&var, value); } while (0)
+#define set_mb(var, value) set_rmb(var, value)
+#define set_wmb(var, value) do { var = value; wmb(); } while (0)
+
+/* Interrupt Control */
+#ifndef HARD_CLI
+#define SR_MASK_L 0x000000f0L
+#define SR_MASK_LL 0x00000000000000f0LL
+#else
+#define SR_MASK_L 0x10000000L
+#define SR_MASK_LL 0x0000000010000000LL
+#endif
+
+static __inline__ void local_irq_enable(void)
+{
+ /* cli/sti based on SR.BL */
+ unsigned long long __dummy0, __dummy1=~SR_MASK_LL;
+
+ __asm__ __volatile__("getcon " __SR ", %0\n\t"
+ "and %0, %1, %0\n\t"
+ "putcon %0, " __SR "\n\t"
+ : "=&r" (__dummy0)
+ : "r" (__dummy1));
+}
+
+static __inline__ void local_irq_disable(void)
+{
+ /* cli/sti based on SR.BL */
+ unsigned long long __dummy0, __dummy1=SR_MASK_LL;
+ __asm__ __volatile__("getcon " __SR ", %0\n\t"
+ "or %0, %1, %0\n\t"
+ "putcon %0, " __SR "\n\t"
+ : "=&r" (__dummy0)
+ : "r" (__dummy1));
+}
+
+#define local_save_flags(x) \
+(__extension__ ({ unsigned long long __dummy=SR_MASK_LL; \
+ __asm__ __volatile__( \
+ "getcon " __SR ", %0\n\t" \
+ "and %0, %1, %0" \
+ : "=&r" (x) \
+ : "r" (__dummy));}))
+
+#define local_irq_save(x) \
+(__extension__ ({ unsigned long long __d2=SR_MASK_LL, __d1; \
+ __asm__ __volatile__( \
+ "getcon " __SR ", %1\n\t" \
+ "or %1, r63, %0\n\t" \
+ "or %1, %2, %1\n\t" \
+ "putcon %1, " __SR "\n\t" \
+ "and %0, %2, %0" \
+ : "=&r" (x), "=&r" (__d1) \
+ : "r" (__d2));}));
+
+#define local_irq_restore(x) do { \
+ if ( ((x) & SR_MASK_L) == 0 ) /* dropping to 0 ? */ \
+ local_irq_enable(); /* yes...re-enable */ \
+} while (0)
+
+#define irqs_disabled() \
+({ \
+ unsigned long flags; \
+ local_save_flags(flags); \
+ (flags != 0); \
+})
+
+extern __inline__ unsigned long xchg_u32(volatile int * m, unsigned long val)
+{
+ unsigned long flags, retval;
+
+ local_irq_save(flags);
+ retval = *m;
+ *m = val;
+ local_irq_restore(flags);
+ return retval;
+}
+
+extern __inline__ unsigned long xchg_u8(volatile unsigned char * m, unsigned long val)
+{
+ unsigned long flags, retval;
+
+ local_irq_save(flags);
+ retval = *m;
+ *m = val & 0xff;
+ local_irq_restore(flags);
+ return retval;
+}
+
+static __inline__ unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
+{
+ switch (size) {
+ case 4:
+ return xchg_u32(ptr, x);
+ break;
+ case 1:
+ return xchg_u8(ptr, x);
+ break;
+ }
+ __xchg_called_with_bad_pointer();
+ return x;
+}
+
+/* XXX
+ * disable hlt during certain critical i/o operations
+ */
+#define HAVE_DISABLE_HLT
+void disable_hlt(void);
+void enable_hlt(void);
+
+
+#define smp_mb() barrier()
+#define smp_rmb() barrier()
+#define smp_wmb() barrier()
+
+#ifdef CONFIG_SH_ALPHANUMERIC
+/* This is only used for debugging. */
+extern void print_seg(char *file,int line);
+#define PLS() print_seg(__FILE__,__LINE__)
+#else /* CONFIG_SH_ALPHANUMERIC */
+#define PLS()
+#endif /* CONFIG_SH_ALPHANUMERIC */
+
+#define PL() printk("@ <%s,%s:%d>\n",__FILE__,__FUNCTION__,__LINE__)
+
+#define arch_align_stack(x) (x)
+
+#endif /* __ASM_SH64_SYSTEM_H */