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!

1 files changed, 197 insertions, 0 deletions

diff --git a/include/asm-sparc64/processor.h b/include/asm-sparc64/processor.h
new file mode 100644
index 000000000000..bc1445b904ef
--- /dev/null
+++ b/include/asm-sparc64/processor.h
@@ -0,0 +1,197 @@
+/* $Id: processor.h,v 1.83 2002/02/10 06:04:33 davem Exp $
+ * include/asm-sparc64/processor.h
+ *
+ * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
+ */
+
+#ifndef __ASM_SPARC64_PROCESSOR_H
+#define __ASM_SPARC64_PROCESSOR_H
+
+/*
+ * Sparc64 implementation of macro that returns current
+ * instruction pointer ("program counter").
+ */
+#define current_text_addr() ({ void *pc; __asm__("rd %%pc, %0" : "=r" (pc)); pc; })
+
+#include <linux/config.h>
+#include <asm/asi.h>
+#include <asm/a.out.h>
+#include <asm/pstate.h>
+#include <asm/ptrace.h>
+#include <asm/segment.h>
+#include <asm/page.h>
+
+/* The sparc has no problems with write protection */
+#define wp_works_ok 1
+#define wp_works_ok__is_a_macro /* for versions in ksyms.c */
+
+/*
+ * User lives in his very own context, and cannot reference us. Note
+ * that TASK_SIZE is a misnomer, it really gives maximum user virtual 
+ * address that the kernel will allocate out.
+ */
+#define VA_BITS		44
+#ifndef __ASSEMBLY__
+#define VPTE_SIZE	(1UL << (VA_BITS - PAGE_SHIFT + 3))
+#else
+#define VPTE_SIZE	(1 << (VA_BITS - PAGE_SHIFT + 3))
+#endif
+#define TASK_SIZE	((unsigned long)-VPTE_SIZE)
+
+/*
+ * The vpte base must be able to hold the entire vpte, half
+ * of which lives above, and half below, the base. And it
+ * is placed as close to the highest address range as possible.
+ */
+#define VPTE_BASE_SPITFIRE	(-(VPTE_SIZE/2))
+#if 1
+#define VPTE_BASE_CHEETAH	VPTE_BASE_SPITFIRE
+#else
+#define VPTE_BASE_CHEETAH	0xffe0000000000000
+#endif
+
+#ifndef __ASSEMBLY__
+
+typedef struct {
+	unsigned char seg;
+} mm_segment_t;
+
+/* The Sparc processor specific thread struct. */
+/* XXX This should die, everything can go into thread_info now. */
+struct thread_struct {
+#ifdef CONFIG_DEBUG_SPINLOCK
+	/* How many spinlocks held by this thread.
+	 * Used with spin lock debugging to catch tasks
+	 * sleeping illegally with locks held.
+	 */
+	int smp_lock_count;
+	unsigned int smp_lock_pc;
+#else
+	int dummy; /* f'in gcc bug... */
+#endif
+};
+
+#endif /* !(__ASSEMBLY__) */
+
+#ifndef CONFIG_DEBUG_SPINLOCK
+#define INIT_THREAD  {			\
+	0,				\
+}
+#else /* CONFIG_DEBUG_SPINLOCK */
+#define INIT_THREAD  {					\
+/* smp_lock_count, smp_lock_pc, */			\
+   0,		   0,					\
+}
+#endif /* !(CONFIG_DEBUG_SPINLOCK) */
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+
+/* Return saved PC of a blocked thread. */
+struct task_struct;
+extern unsigned long thread_saved_pc(struct task_struct *);
+
+/* On Uniprocessor, even in RMO processes see TSO semantics */
+#ifdef CONFIG_SMP
+#define TSTATE_INITIAL_MM	TSTATE_TSO
+#else
+#define TSTATE_INITIAL_MM	TSTATE_RMO
+#endif
+
+/* Do necessary setup to start up a newly executed thread. */
+#define start_thread(regs, pc, sp) \
+do { \
+	regs->tstate = (regs->tstate & (TSTATE_CWP)) | (TSTATE_INITIAL_MM|TSTATE_IE) | (ASI_PNF << 24); \
+	regs->tpc = ((pc & (~3)) - 4); \
+	regs->tnpc = regs->tpc + 4; \
+	regs->y = 0; \
+	set_thread_wstate(1 << 3); \
+	if (current_thread_info()->utraps) { \
+		if (*(current_thread_info()->utraps) < 2) \
+			kfree(current_thread_info()->utraps); \
+		else \
+			(*(current_thread_info()->utraps))--; \
+		current_thread_info()->utraps = NULL; \
+	} \
+	__asm__ __volatile__( \
+	"stx		%%g0, [%0 + %2 + 0x00]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x08]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x10]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x18]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x20]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x28]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x30]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x38]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x40]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x48]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x50]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x58]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x60]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x68]\n\t" \
+	"stx		%1,   [%0 + %2 + 0x70]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x78]\n\t" \
+	"wrpr		%%g0, (1 << 3), %%wstate\n\t" \
+	: \
+	: "r" (regs), "r" (sp - sizeof(struct reg_window) - STACK_BIAS), \
+	  "i" ((const unsigned long)(&((struct pt_regs *)0)->u_regs[0]))); \
+} while (0)
+
+#define start_thread32(regs, pc, sp) \
+do { \
+	pc &= 0x00000000ffffffffUL; \
+	sp &= 0x00000000ffffffffUL; \
+\
+	regs->tstate = (regs->tstate & (TSTATE_CWP))|(TSTATE_INITIAL_MM|TSTATE_IE|TSTATE_AM); \
+	regs->tpc = ((pc & (~3)) - 4); \
+	regs->tnpc = regs->tpc + 4; \
+	regs->y = 0; \
+	set_thread_wstate(2 << 3); \
+	if (current_thread_info()->utraps) { \
+		if (*(current_thread_info()->utraps) < 2) \
+			kfree(current_thread_info()->utraps); \
+		else \
+			(*(current_thread_info()->utraps))--; \
+		current_thread_info()->utraps = NULL; \
+	} \
+	__asm__ __volatile__( \
+	"stx		%%g0, [%0 + %2 + 0x00]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x08]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x10]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x18]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x20]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x28]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x30]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x38]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x40]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x48]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x50]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x58]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x60]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x68]\n\t" \
+	"stx		%1,   [%0 + %2 + 0x70]\n\t" \
+	"stx		%%g0, [%0 + %2 + 0x78]\n\t" \
+	"wrpr		%%g0, (2 << 3), %%wstate\n\t" \
+	: \
+	: "r" (regs), "r" (sp - sizeof(struct reg_window32)), \
+	  "i" ((const unsigned long)(&((struct pt_regs *)0)->u_regs[0]))); \
+} while (0)
+
+/* Free all resources held by a thread. */
+#define release_thread(tsk)		do { } while (0)
+
+/* Prepare to copy thread state - unlazy all lazy status */
+#define prepare_to_copy(tsk)	do { } while (0)
+
+extern pid_t kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
+
+extern unsigned long get_wchan(struct task_struct *task);
+
+#define KSTK_EIP(tsk)  ((tsk)->thread_info->kregs->tpc)
+#define KSTK_ESP(tsk)  ((tsk)->thread_info->kregs->u_regs[UREG_FP])
+
+#define cpu_relax()	barrier()
+
+#endif /* !(__ASSEMBLY__) */
+
+#endif /* !(__ASM_SPARC64_PROCESSOR_H) */