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kernel-ark/arch/sparc64/kernel/sparc64_ksyms.c
Ingo Molnar fb1c8f93d8 [PATCH] spinlock consolidation 
This patch (written by me and also containing many suggestions of Arjan van
de Ven) does a major cleanup of the spinlock code.  It does the following
things:

 - consolidates and enhances the spinlock/rwlock debugging code

 - simplifies the asm/spinlock.h files

 - encapsulates the raw spinlock type and moves generic spinlock
   features (such as ->break_lock) into the generic code.

 - cleans up the spinlock code hierarchy to get rid of the spaghetti.

Most notably there's now only a single variant of the debugging code,
located in lib/spinlock_debug.c.  (previously we had one SMP debugging
variant per architecture, plus a separate generic one for UP builds)

Also, i've enhanced the rwlock debugging facility, it will now track
write-owners.  There is new spinlock-owner/CPU-tracking on SMP builds too.
All locks have lockup detection now, which will work for both soft and hard
spin/rwlock lockups.

The arch-level include files now only contain the minimally necessary
subset of the spinlock code - all the rest that can be generalized now
lives in the generic headers:

 include/asm-i386/spinlock_types.h       |   16
 include/asm-x86_64/spinlock_types.h     |   16

I have also split up the various spinlock variants into separate files,
making it easier to see which does what. The new layout is:

   SMP                         |  UP
   ----------------------------|-----------------------------------
   asm/spinlock_types_smp.h    |  linux/spinlock_types_up.h
   linux/spinlock_types.h      |  linux/spinlock_types.h
   asm/spinlock_smp.h          |  linux/spinlock_up.h
   linux/spinlock_api_smp.h    |  linux/spinlock_api_up.h
   linux/spinlock.h            |  linux/spinlock.h

/*
 * here's the role of the various spinlock/rwlock related include files:
 *
 * on SMP builds:
 *
 *  asm/spinlock_types.h: contains the raw_spinlock_t/raw_rwlock_t and the
 *                        initializers
 *
 *  linux/spinlock_types.h:
 *                        defines the generic type and initializers
 *
 *  asm/spinlock.h:       contains the __raw_spin_*()/etc. lowlevel
 *                        implementations, mostly inline assembly code
 *
 *   (also included on UP-debug builds:)
 *
 *  linux/spinlock_api_smp.h:
 *                        contains the prototypes for the _spin_*() APIs.
 *
 *  linux/spinlock.h:     builds the final spin_*() APIs.
 *
 * on UP builds:
 *
 *  linux/spinlock_type_up.h:
 *                        contains the generic, simplified UP spinlock type.
 *                        (which is an empty structure on non-debug builds)
 *
 *  linux/spinlock_types.h:
 *                        defines the generic type and initializers
 *
 *  linux/spinlock_up.h:
 *                        contains the __raw_spin_*()/etc. version of UP
 *                        builds. (which are NOPs on non-debug, non-preempt
 *                        builds)
 *
 *   (included on UP-non-debug builds:)
 *
 *  linux/spinlock_api_up.h:
 *                        builds the _spin_*() APIs.
 *
 *  linux/spinlock.h:     builds the final spin_*() APIs.
 */

All SMP and UP architectures are converted by this patch.

arm, i386, ia64, ppc, ppc64, s390/s390x, x64 was build-tested via
crosscompilers.  m32r, mips, sh, sparc, have not been tested yet, but should
be mostly fine.

From: Grant Grundler <grundler@parisc-linux.org>

  Booted and lightly tested on a500-44 (64-bit, SMP kernel, dual CPU).
  Builds 32-bit SMP kernel (not booted or tested).  I did not try to build
  non-SMP kernels.  That should be trivial to fix up later if necessary.

  I converted bit ops atomic_hash lock to raw_spinlock_t.  Doing so avoids
  some ugly nesting of linux/*.h and asm/*.h files.  Those particular locks
  are well tested and contained entirely inside arch specific code.  I do NOT
  expect any new issues to arise with them.

 If someone does ever need to use debug/metrics with them, then they will
  need to unravel this hairball between spinlocks, atomic ops, and bit ops
  that exist only because parisc has exactly one atomic instruction: LDCW
  (load and clear word).

From: "Luck, Tony" <tony.luck@intel.com>

   ia64 fix

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjanv@infradead.org>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Cc: Matthew Wilcox <willy@debian.org>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Mikael Pettersson <mikpe@csd.uu.se>
Signed-off-by: Benoit Boissinot <benoit.boissinot@ens-lyon.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-10 10:06:21 -07:00

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/* $Id: sparc64_ksyms.c,v 1.121 2002/02/09 19:49:31 davem Exp $
* arch/sparc64/kernel/sparc64_ksyms.c: Sparc64 specific ksyms support.
*
* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
* Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be)
* Copyright (C) 1999 Jakub Jelinek (jj@ultra.linux.cz)
*/
/* Tell string.h we don't want memcpy etc. as cpp defines */
#define EXPORT_SYMTAB_STROPS
#define PROMLIB_INTERNAL
#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/sched.h>
#include <linux/in6.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/fs_struct.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/socket.h>
#include <linux/syscalls.h>
#include <linux/percpu.h>
#include <linux/init.h>
#include <net/compat.h>
#include <asm/oplib.h>
#include <asm/delay.h>
#include <asm/system.h>
#include <asm/auxio.h>
#include <asm/pgtable.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/idprom.h>
#include <asm/svr4.h>
#include <asm/elf.h>
#include <asm/head.h>
#include <asm/smp.h>
#include <asm/mostek.h>
#include <asm/ptrace.h>
#include <asm/user.h>
#include <asm/uaccess.h>
#include <asm/checksum.h>
#include <asm/fpumacro.h>
#include <asm/pgalloc.h>
#include <asm/cacheflush.h>
#ifdef CONFIG_SBUS
#include <asm/sbus.h>
#include <asm/dma.h>
#endif
#ifdef CONFIG_PCI
#include <asm/ebus.h>
#include <asm/isa.h>
#endif
#include <asm/a.out.h>
#include <asm/ns87303.h>
#include <asm/timer.h>
#include <asm/cpudata.h>
#include <asm/rwsem.h>
struct poll {
int fd;
short events;
short revents;
};
extern void die_if_kernel(char *str, struct pt_regs *regs);
extern pid_t kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
void _sigpause_common (unsigned int set, struct pt_regs *);
extern void *__bzero(void *, size_t);
extern void *__memscan_zero(void *, size_t);
extern void *__memscan_generic(void *, int, size_t);
extern int __memcmp(const void *, const void *, __kernel_size_t);
extern __kernel_size_t strlen(const char *);
extern void linux_sparc_syscall(void);
extern void rtrap(void);
extern void show_regs(struct pt_regs *);
extern void solaris_syscall(void);
extern void syscall_trace(struct pt_regs *, int);
extern u32 sunos_sys_table[], sys_call_table32[];
extern void tl0_solaris(void);
extern void sys_sigsuspend(void);
extern int svr4_getcontext(svr4_ucontext_t *uc, struct pt_regs *regs);
extern int svr4_setcontext(svr4_ucontext_t *uc, struct pt_regs *regs);
extern int compat_sys_ioctl(unsigned int fd, unsigned int cmd, u32 arg);
extern int (*handle_mathemu)(struct pt_regs *, struct fpustate *);
extern long sparc32_open(const char __user * filename, int flags, int mode);
extern int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
unsigned long pfn, unsigned long size, pgprot_t prot);
extern void (*prom_palette)(int);
extern int __ashrdi3(int, int);
extern void dump_thread(struct pt_regs *, struct user *);
extern int dump_fpu (struct pt_regs * regs, elf_fpregset_t * fpregs);
extern unsigned long phys_base;
extern unsigned long pfn_base;
extern unsigned int sys_call_table[];
extern void xor_vis_2(unsigned long, unsigned long *, unsigned long *);
extern void xor_vis_3(unsigned long, unsigned long *, unsigned long *,
unsigned long *);
extern void xor_vis_4(unsigned long, unsigned long *, unsigned long *,
unsigned long *, unsigned long *);
extern void xor_vis_5(unsigned long, unsigned long *, unsigned long *,
unsigned long *, unsigned long *, unsigned long *);
/* Per-CPU information table */
EXPORT_PER_CPU_SYMBOL(__cpu_data);
/* used by various drivers */
#ifdef CONFIG_SMP
/* Out of line rw-locking implementation. */
EXPORT_SYMBOL(__read_lock);
EXPORT_SYMBOL(__read_unlock);
EXPORT_SYMBOL(__write_lock);
EXPORT_SYMBOL(__write_unlock);
EXPORT_SYMBOL(__write_trylock);
/* Hard IRQ locking */
EXPORT_SYMBOL(synchronize_irq);
#if defined(CONFIG_MCOUNT)
extern void _mcount(void);
EXPORT_SYMBOL(_mcount);
#endif
/* CPU online map and active count. */
EXPORT_SYMBOL(cpu_online_map);
EXPORT_SYMBOL(phys_cpu_present_map);
EXPORT_SYMBOL(smp_call_function);
#endif /* CONFIG_SMP */
EXPORT_SYMBOL(sparc64_get_clock_tick);
/* semaphores */
EXPORT_SYMBOL(down);
EXPORT_SYMBOL(down_trylock);
EXPORT_SYMBOL(down_interruptible);
EXPORT_SYMBOL(up);
/* RW semaphores */
EXPORT_SYMBOL(__down_read);
EXPORT_SYMBOL(__down_read_trylock);
EXPORT_SYMBOL(__down_write);
EXPORT_SYMBOL(__down_write_trylock);
EXPORT_SYMBOL(__up_read);
EXPORT_SYMBOL(__up_write);
EXPORT_SYMBOL(__downgrade_write);
/* Atomic counter implementation. */
EXPORT_SYMBOL(atomic_add);
EXPORT_SYMBOL(atomic_add_ret);
EXPORT_SYMBOL(atomic_sub);
EXPORT_SYMBOL(atomic_sub_ret);
EXPORT_SYMBOL(atomic64_add);
EXPORT_SYMBOL(atomic64_add_ret);
EXPORT_SYMBOL(atomic64_sub);
EXPORT_SYMBOL(atomic64_sub_ret);
#ifdef CONFIG_SMP
EXPORT_SYMBOL(_atomic_dec_and_lock);
#endif
/* Atomic bit operations. */
EXPORT_SYMBOL(test_and_set_bit);
EXPORT_SYMBOL(test_and_clear_bit);
EXPORT_SYMBOL(test_and_change_bit);
EXPORT_SYMBOL(set_bit);
EXPORT_SYMBOL(clear_bit);
EXPORT_SYMBOL(change_bit);
/* Bit searching */
EXPORT_SYMBOL(find_next_bit);
EXPORT_SYMBOL(find_next_zero_bit);
EXPORT_SYMBOL(find_next_zero_le_bit);
EXPORT_SYMBOL(ivector_table);
EXPORT_SYMBOL(enable_irq);
EXPORT_SYMBOL(disable_irq);
EXPORT_SYMBOL(__flushw_user);
EXPORT_SYMBOL(tlb_type);
EXPORT_SYMBOL(get_fb_unmapped_area);
EXPORT_SYMBOL(flush_icache_range);
EXPORT_SYMBOL(flush_dcache_page);
#ifdef DCACHE_ALIASING_POSSIBLE
EXPORT_SYMBOL(__flush_dcache_range);
#endif
EXPORT_SYMBOL(mostek_lock);
EXPORT_SYMBOL(mstk48t02_regs);
#ifdef CONFIG_SUN_AUXIO
EXPORT_SYMBOL(auxio_set_led);
EXPORT_SYMBOL(auxio_set_lte);
#endif
#ifdef CONFIG_SBUS
EXPORT_SYMBOL(sbus_root);
EXPORT_SYMBOL(dma_chain);
EXPORT_SYMBOL(sbus_set_sbus64);
EXPORT_SYMBOL(sbus_alloc_consistent);
EXPORT_SYMBOL(sbus_free_consistent);
EXPORT_SYMBOL(sbus_map_single);
EXPORT_SYMBOL(sbus_unmap_single);
EXPORT_SYMBOL(sbus_map_sg);
EXPORT_SYMBOL(sbus_unmap_sg);
EXPORT_SYMBOL(sbus_dma_sync_single_for_cpu);
EXPORT_SYMBOL(sbus_dma_sync_single_for_device);
EXPORT_SYMBOL(sbus_dma_sync_sg_for_cpu);
EXPORT_SYMBOL(sbus_dma_sync_sg_for_device);
#endif
EXPORT_SYMBOL(outsb);
EXPORT_SYMBOL(outsw);
EXPORT_SYMBOL(outsl);
EXPORT_SYMBOL(insb);
EXPORT_SYMBOL(insw);
EXPORT_SYMBOL(insl);
#ifdef CONFIG_PCI
EXPORT_SYMBOL(ebus_chain);
EXPORT_SYMBOL(isa_chain);
EXPORT_SYMBOL(pci_memspace_mask);
EXPORT_SYMBOL(pci_alloc_consistent);
EXPORT_SYMBOL(pci_free_consistent);
EXPORT_SYMBOL(pci_map_single);
EXPORT_SYMBOL(pci_unmap_single);
EXPORT_SYMBOL(pci_map_sg);
EXPORT_SYMBOL(pci_unmap_sg);
EXPORT_SYMBOL(pci_dma_sync_single_for_cpu);
EXPORT_SYMBOL(pci_dma_sync_sg_for_cpu);
EXPORT_SYMBOL(pci_dma_supported);
#endif
/* I/O device mmaping on Sparc64. */
EXPORT_SYMBOL(io_remap_pfn_range);
/* Solaris/SunOS binary compatibility */
EXPORT_SYMBOL(_sigpause_common);
EXPORT_SYMBOL(verify_compat_iovec);
EXPORT_SYMBOL(dump_thread);
EXPORT_SYMBOL(dump_fpu);
EXPORT_SYMBOL(pte_alloc_one_kernel);
#ifndef CONFIG_SMP
EXPORT_SYMBOL(pgt_quicklists);
#endif
EXPORT_SYMBOL(put_fs_struct);
/* math-emu wants this */
EXPORT_SYMBOL(die_if_kernel);
/* Kernel thread creation. */
EXPORT_SYMBOL(kernel_thread);
/* prom symbols */
EXPORT_SYMBOL(idprom);
EXPORT_SYMBOL(prom_root_node);
EXPORT_SYMBOL(prom_getchild);
EXPORT_SYMBOL(prom_getsibling);
EXPORT_SYMBOL(prom_searchsiblings);
EXPORT_SYMBOL(prom_firstprop);
EXPORT_SYMBOL(prom_nextprop);
EXPORT_SYMBOL(prom_getproplen);
EXPORT_SYMBOL(prom_getproperty);
EXPORT_SYMBOL(prom_node_has_property);
EXPORT_SYMBOL(prom_setprop);
EXPORT_SYMBOL(saved_command_line);
EXPORT_SYMBOL(prom_getname);
EXPORT_SYMBOL(prom_finddevice);
EXPORT_SYMBOL(prom_feval);
EXPORT_SYMBOL(prom_getbool);
EXPORT_SYMBOL(prom_getstring);
EXPORT_SYMBOL(prom_getint);
EXPORT_SYMBOL(prom_getintdefault);
EXPORT_SYMBOL(__prom_getchild);
EXPORT_SYMBOL(__prom_getsibling);
/* sparc library symbols */
EXPORT_SYMBOL(strlen);
EXPORT_SYMBOL(strnlen);
EXPORT_SYMBOL(__strlen_user);
EXPORT_SYMBOL(__strnlen_user);
EXPORT_SYMBOL(strcpy);
EXPORT_SYMBOL(strncpy);
EXPORT_SYMBOL(strcat);
EXPORT_SYMBOL(strncat);
EXPORT_SYMBOL(strcmp);
EXPORT_SYMBOL(strchr);
EXPORT_SYMBOL(strrchr);
EXPORT_SYMBOL(strpbrk);
EXPORT_SYMBOL(strstr);
#ifdef CONFIG_SOLARIS_EMUL_MODULE
EXPORT_SYMBOL(linux_sparc_syscall);
EXPORT_SYMBOL(rtrap);
EXPORT_SYMBOL(show_regs);
EXPORT_SYMBOL(solaris_syscall);
EXPORT_SYMBOL(syscall_trace);
EXPORT_SYMBOL(sunos_sys_table);
EXPORT_SYMBOL(sys_call_table32);
EXPORT_SYMBOL(tl0_solaris);
EXPORT_SYMBOL(sys_sigsuspend);
EXPORT_SYMBOL(sys_getppid);
EXPORT_SYMBOL(sys_getpid);
EXPORT_SYMBOL(sys_geteuid);
EXPORT_SYMBOL(sys_getuid);
EXPORT_SYMBOL(sys_getegid);
EXPORT_SYMBOL(sys_getgid);
EXPORT_SYMBOL(svr4_getcontext);
EXPORT_SYMBOL(svr4_setcontext);
EXPORT_SYMBOL(compat_sys_ioctl);
EXPORT_SYMBOL(sparc32_open);
EXPORT_SYMBOL(sys_close);
#endif
/* Special internal versions of library functions. */
EXPORT_SYMBOL(_clear_page);
EXPORT_SYMBOL(clear_user_page);
EXPORT_SYMBOL(copy_user_page);
EXPORT_SYMBOL(__bzero);
EXPORT_SYMBOL(__memscan_zero);
EXPORT_SYMBOL(__memscan_generic);
EXPORT_SYMBOL(__memcmp);
EXPORT_SYMBOL(__memset);
EXPORT_SYMBOL(memchr);
EXPORT_SYMBOL(csum_partial);
EXPORT_SYMBOL(csum_partial_copy_nocheck);
EXPORT_SYMBOL(__csum_partial_copy_from_user);
EXPORT_SYMBOL(__csum_partial_copy_to_user);
EXPORT_SYMBOL(ip_fast_csum);
/* Moving data to/from/in userspace. */
EXPORT_SYMBOL(___copy_to_user);
EXPORT_SYMBOL(___copy_from_user);
EXPORT_SYMBOL(___copy_in_user);
EXPORT_SYMBOL(copy_to_user_fixup);
EXPORT_SYMBOL(copy_from_user_fixup);
EXPORT_SYMBOL(copy_in_user_fixup);
EXPORT_SYMBOL(__strncpy_from_user);
EXPORT_SYMBOL(__bzero_noasi);
/* Various address conversion macros use this. */
EXPORT_SYMBOL(phys_base);
EXPORT_SYMBOL(pfn_base);
EXPORT_SYMBOL(sparc64_valid_addr_bitmap);
EXPORT_SYMBOL(page_to_pfn);
EXPORT_SYMBOL(pfn_to_page);
/* No version information on this, heavily used in inline asm,
* and will always be 'void __ret_efault(void)'.
*/
EXPORT_SYMBOL(__ret_efault);
/* No version information on these, as gcc produces such symbols. */
EXPORT_SYMBOL(memcmp);
EXPORT_SYMBOL(memcpy);
EXPORT_SYMBOL(memset);
EXPORT_SYMBOL(memmove);
EXPORT_SYMBOL(strncmp);
/* Delay routines. */
EXPORT_SYMBOL(__udelay);
EXPORT_SYMBOL(__ndelay);
EXPORT_SYMBOL(__const_udelay);
EXPORT_SYMBOL(__delay);
void VISenter(void);
/* RAID code needs this */
EXPORT_SYMBOL(VISenter);
/* for input/keybdev */
EXPORT_SYMBOL(sun_do_break);
EXPORT_SYMBOL(serial_console);
EXPORT_SYMBOL(stop_a_enabled);
#ifdef CONFIG_DEBUG_BUGVERBOSE
EXPORT_SYMBOL(do_BUG);
#endif
/* for ns8703 */
EXPORT_SYMBOL(ns87303_lock);
/* for solaris compat module */
EXPORT_SYMBOL_GPL(sys_call_table);
EXPORT_SYMBOL(tick_ops);
EXPORT_SYMBOL(xor_vis_2);
EXPORT_SYMBOL(xor_vis_3);
EXPORT_SYMBOL(xor_vis_4);
EXPORT_SYMBOL(xor_vis_5);
EXPORT_SYMBOL(prom_palette);
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