Commit graph

25298 commits

Author SHA1 Message Date
Sam Ravnborg
7c4285d836 sparc: Merge asm-sparc{,64}/setup.h
COMMAND_LINE_SIZE differ for 32 and 64 bit.
256 versus 2048

:$ diff -u include/asm-sparc/setup.h include/asm-sparc64/setup.h
:-- include/asm-sparc/setup.h	2008-06-13 06:42:07.000000000 +0200
:++ include/asm-sparc64/setup.h	2008-06-13 06:42:07.000000000 +0200
:@@ -2,9 +2,9 @@
:  *	Just a place holder.
:  */
:
:-#ifndef _SPARC_SETUP_H
:-#define _SPARC_SETUP_H
:+#ifndef _SPARC64_SETUP_H
:+#define _SPARC64_SETUP_H
:
:-#define COMMAND_LINE_SIZE	256
:+#define COMMAND_LINE_SIZE	2048
:
:-#endif /* _SPARC_SETUP_H */
:+#endif /* _SPARC64_SETUP_H */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-17 21:42:09 -07:00
Sam Ravnborg
68a61c8d87 sparc: Merge asm-sparc{,64}/resource.h
RLIM_INFINITY differ from 32 and 64 bit.
The rest is equal.

:$ diff -u include/asm-sparc/resource.h include/asm-sparc64/resource.h
:-- include/asm-sparc/resource.h	2008-06-13 06:46:39.000000000 +0200
:++ include/asm-sparc64/resource.h	2008-06-13 06:46:39.000000000 +0200
:@@ -1,11 +1,11 @@
: /*
:  * resource.h: Resource definitions.
:  *
:- * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
:+ * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
:  */
:
:-#ifndef _SPARC_RESOURCE_H
:-#define _SPARC_RESOURCE_H
:+#ifndef _SPARC64_RESOURCE_H
:+#define _SPARC64_RESOURCE_H
:
: /*
:  * These two resource limit IDs have a Sparc/Linux-specific ordering,
:@@ -14,13 +14,6 @@
: #define RLIMIT_NOFILE		6	/* max number of open files */
: #define RLIMIT_NPROC		7	/* max number of processes */
:
:-/*
:- * SuS says limits have to be unsigned.
:- * We make this unsigned, but keep the
:- * old value for compatibility:
:- */
:-#define RLIM_INFINITY		0x7fffffff
:-
: #include <asm-generic/resource.h>
:
:-#endif /* !(_SPARC_RESOURCE_H) */
:+#endif /* !(_SPARC64_RESOURCE_H) */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-17 21:42:07 -07:00
Sam Ravnborg
7acc483d21 sparc: Merge asm-sparc{,64}/fbio.h
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-17 21:42:04 -07:00
Sam Ravnborg
fc86029910 sparc: copy asm-sparc64/fbio.h to asm-sparc
There were only a few trivial changes and a few additions
in the sparc64 variant of this file.
This patch copies the sparc64 specific bits to the sparc version
of fbio.h so they are equal. A later patch will merge the two.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-17 21:41:55 -07:00
Sam Ravnborg
f92ffa12f4 sparc: Merge asm-sparc{,64}/mman.h
Renaming the function sparc64_mmap_check() to
sparc_mmap_check() was enough to make the two
header files identical.

:$ diff -u include/asm-sparc/mman.h include/asm-sparc64/mman.h
:-- include/asm-sparc/mman.h	2008-06-13 06:46:39.000000000 +0200
:++ include/asm-sparc64/mman.h	2008-06-13 06:46:39.000000000 +0200
:@@ -1,5 +1,5 @@
:-#ifndef __SPARC_MMAN_H__
:-#define __SPARC_MMAN_H__
:+#ifndef __SPARC64_MMAN_H__
:+#define __SPARC64_MMAN_H__
:
: #include <asm-generic/mman.h>
:
:@@ -23,9 +23,9 @@
:
: #ifdef __KERNEL__
: #ifndef __ASSEMBLY__
:-#define arch_mmap_check(addr,len,flags)	sparc_mmap_check(addr,len)
:-int sparc_mmap_check(unsigned long addr, unsigned long len);
:+#define arch_mmap_check(addr,len,flags)	sparc64_mmap_check(addr,len)
:+int sparc64_mmap_check(unsigned long addr, unsigned long len);
: #endif
: #endif
:
:-#endif /* __SPARC_MMAN_H__ */
:+#endif /* __SPARC64_MMAN_H__ */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-17 21:41:51 -07:00
Sam Ravnborg
2d1419624c sparc: Merge asm-sparc{,64}/shmbuf.h
Padding in the shmbuf structure made conditional
as only 32 bit sparc did so.

:$ diff -u include/asm-sparc/shmbuf.h include/asm-sparc64/shmbuf.h
:-- include/asm-sparc/shmbuf.h	2008-06-13 06:42:07.000000000 +0200
:++ include/asm-sparc64/shmbuf.h	2008-06-13 06:42:07.000000000 +0200
:@@ -1,23 +1,19 @@
:-#ifndef _SPARC_SHMBUF_H
:-#define _SPARC_SHMBUF_H
:+#ifndef _SPARC64_SHMBUF_H
:+#define _SPARC64_SHMBUF_H
:
: /*
:- * The shmid64_ds structure for sparc architecture.
:+ * The shmid64_ds structure for sparc64 architecture.
:  * Note extra padding because this structure is passed back and forth
:  * between kernel and user space.
:  *
:  * Pad space is left for:
:- * - 64-bit time_t to solve y2038 problem
:- * - 2 miscellaneous 32-bit values
:+ * - 2 miscellaneous 64-bit values
:  */
:
: struct shmid64_ds {
: 	struct ipc64_perm	shm_perm;	/* operation perms */
:-	unsigned int		__pad1;
: 	__kernel_time_t		shm_atime;	/* last attach time */
:-	unsigned int		__pad2;
: 	__kernel_time_t		shm_dtime;	/* last detach time */
:-	unsigned int		__pad3;
: 	__kernel_time_t		shm_ctime;	/* last change time */
: 	size_t			shm_segsz;	/* size of segment (bytes) */
: 	__kernel_pid_t		shm_cpid;	/* pid of creator */
:@@ -39,4 +35,4 @@
: 	unsigned long	__unused4;
: };
:
:-#endif /* _SPARC_SHMBUF_H */
:+#endif /* _SPARC64_SHMBUF_H */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-17 21:41:48 -07:00
Sam Ravnborg
fcb07081f2 sparc: Merge asm-sparc{,64}/sembuf.h
Padding in the sembuf structure made conditional
as only 32 bit sparc did so.

:$ diff -u include/asm-sparc/sembuf.h include/asm-sparc64/sembuf.h
:-- include/asm-sparc/sembuf.h	2008-06-13 06:42:07.000000000 +0200
:++ include/asm-sparc64/sembuf.h	2008-06-13 06:42:07.000000000 +0200
:@@ -1,21 +1,18 @@
:-#ifndef _SPARC_SEMBUF_H
:-#define _SPARC_SEMBUF_H
:+#ifndef _SPARC64_SEMBUF_H
:+#define _SPARC64_SEMBUF_H
:
: /*
:- * The semid64_ds structure for sparc architecture.
:+ * The semid64_ds structure for sparc64 architecture.
:  * Note extra padding because this structure is passed back and forth
:  * between kernel and user space.
:  *
:  * Pad space is left for:
:- * - 64-bit time_t to solve y2038 problem
:- * - 2 miscellaneous 32-bit values
:+ * - 2 miscellaneous 64-bit values
:  */
:
: struct semid64_ds {
: 	struct ipc64_perm sem_perm;		/* permissions .. see ipc.h */
:-	unsigned int	__pad1;
: 	__kernel_time_t	sem_otime;		/* last semop time */
:-	unsigned int	__pad2;
: 	__kernel_time_t	sem_ctime;		/* last change time */
: 	unsigned long	sem_nsems;		/* no. of semaphores in array */
: 	unsigned long	__unused1;

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-17 21:41:44 -07:00
Sam Ravnborg
100b10d752 sparc: Merge asm-sparc{,64}/msgbuf.h
Padding from 32 bit sparc kept using preprocessor magic

:$ diff -u include/asm-sparc/msgbuf.h include/asm-sparc64/msgbuf.h
:-- include/asm-sparc/msgbuf.h	2008-06-13 06:42:07.000000000 +0200
:++ include/asm-sparc64/msgbuf.h	2008-06-13 06:42:07.000000000 +0200
:@@ -7,17 +7,13 @@
:  * between kernel and user space.
:  *
:  * Pad space is left for:
:- * - 64-bit time_t to solve y2038 problem
:- * - 2 miscellaneous 32-bit values
:+ * - 2 miscellaneous 64-bit values
:  */
:
: struct msqid64_ds {
: 	struct ipc64_perm msg_perm;
:-	unsigned int   __pad1;
: 	__kernel_time_t msg_stime;	/* last msgsnd time */
:-	unsigned int   __pad2;
: 	__kernel_time_t msg_rtime;	/* last msgrcv time */
:-	unsigned int   __pad3;
: 	__kernel_time_t msg_ctime;	/* last change time */
: 	unsigned long  msg_cbytes;	/* current number of bytes on queue */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-17 21:41:42 -07:00
Sam Ravnborg
6d1f4b88ee sparc: Merge asm-sparc{,64}/fcntl.h
The definition of O_NDELAY differed - the rest was equal

:$ diff -u include/asm-sparc/fcntl.h include/asm-sparc64/fcntl.h
:-- include/asm-sparc/fcntl.h	2008-06-13 06:46:39.000000000 +0200
:++ include/asm-sparc64/fcntl.h	2008-06-13 06:46:39.000000000 +0200
:@@ -1,8 +1,9 @@
:-#ifndef _SPARC_FCNTL_H
:-#define _SPARC_FCNTL_H
:+#ifndef _SPARC64_FCNTL_H
:+#define _SPARC64_FCNTL_H
:
: /* open/fcntl - O_SYNC is only implemented on blocks devices and on files
:    located on an ext2 file system */
:+#define O_NDELAY	0x0004
: #define O_APPEND	0x0008
: #define FASYNC		0x0040	/* fcntl, for BSD compatibility */
: #define O_CREAT		0x0200	/* not fcntl */
:@@ -10,7 +11,6 @@
: #define O_EXCL		0x0800	/* not fcntl */
: #define O_SYNC		0x2000
: #define O_NONBLOCK	0x4000
:-#define O_NDELAY	(0x0004 | O_NONBLOCK)
: #define O_NOCTTY	0x8000	/* not fcntl */
: #define O_LARGEFILE	0x40000
: #define O_DIRECT        0x100000 /* direct disk access hint */
:@@ -29,8 +29,7 @@
: #define F_UNLCK		3
:
: #define __ARCH_FLOCK_PAD	short __unused;
:-#define __ARCH_FLOCK64_PAD	short __unused;
:
: #include <asm-generic/fcntl.h>
:
:-#endif
:+#endif /* !(_SPARC64_FCNTL_H) */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-17 21:41:39 -07:00
Sam Ravnborg
e880e8701c sparc: Merge asm-sparc{,64}/sockios.h
:$ diff -u include/asm-sparc/sockios.h include/asm-sparc64/sockios.h
:-- include/asm-sparc/sockios.h	2008-06-13 06:42:07.000000000 +0200
:++ include/asm-sparc64/sockios.h	2008-06-13 06:42:07.000000000 +0200
:@@ -1,5 +1,5 @@
:-#ifndef _ASM_SPARC_SOCKIOS_H
:-#define _ASM_SPARC_SOCKIOS_H
:+#ifndef _ASM_SPARC64_SOCKIOS_H
:+#define _ASM_SPARC64_SOCKIOS_H
:
: /* Socket-level I/O control calls. */
: #define FIOSETOWN 	0x8901
:@@ -10,5 +10,5 @@
: #define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
: #define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
:
:-#endif /* !(_ASM_SPARC_SOCKIOS_H) */
:+#endif /* !(_ASM_SPARC64_SOCKIOS_H) */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-17 21:41:35 -07:00
Sam Ravnborg
c8b8be5427 sparc: Merge asm-sparc{,64}/socket.h
:$ diff -u include/asm-sparc/socket.h include/asm-sparc64/socket.h
:-- include/asm-sparc/socket.h	2008-06-13 06:46:39.000000000 +0200
:++ include/asm-sparc64/socket.h	2008-06-13 06:46:39.000000000 +0200
:@@ -48,11 +48,10 @@
: #define SO_TIMESTAMPNS		0x0021
: #define SCM_TIMESTAMPNS		SO_TIMESTAMPNS
:
:-#define SO_MARK			0x0022
:-
: /* Security levels - as per NRL IPv6 - don't actually do anything */
: #define SO_SECURITY_AUTHENTICATION		0x5001
: #define SO_SECURITY_ENCRYPTION_TRANSPORT	0x5002
: #define SO_SECURITY_ENCRYPTION_NETWORK		0x5004
:
:+#define SO_MARK			0x0022
: #endif /* _ASM_SOCKET_H */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-17 21:41:27 -07:00
Sam Ravnborg
62e612f0ab sparc: Merge asm-sparc{,64}/poll.h
:$ diff -u include/asm-sparc/poll.h include/asm-sparc64/poll.h
:-- include/asm-sparc/poll.h	2008-06-13 06:42:07.000000000 +0200
:++ include/asm-sparc64/poll.h	2008-06-13 06:42:07.000000000 +0200
:@@ -1,5 +1,5 @@
:-#ifndef __SPARC_POLL_H
:-#define __SPARC_POLL_H
:+#ifndef __SPARC64_POLL_H
:+#define __SPARC64_POLL_H
:
: #define POLLWRNORM	POLLOUT
: #define POLLWRBAND	256

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-17 21:41:24 -07:00
Sam Ravnborg
4835bd988e sparc: Merge asm-sparc{,64}/param.h
:$ diff -u include/asm-sparc/param.h include/asm-sparc64/param.h
:-- include/asm-sparc/param.h	2008-06-13 06:46:39.000000000 +0200
:++ include/asm-sparc64/param.h	2008-06-13 06:42:07.000000000 +0200
:@@ -1,5 +1,6 @@
:-#ifndef _ASMSPARC_PARAM_H
:-#define _ASMSPARC_PARAM_H
:+#ifndef _ASMSPARC64_PARAM_H
:+#define _ASMSPARC64_PARAM_H
:+
:
: #ifdef __KERNEL__
: # define HZ		CONFIG_HZ	/* Internal kernel timer frequency */
:@@ -19,4 +20,4 @@
:
: #define MAXHOSTNAMELEN	64	/* max length of hostname */
:
:-#endif
:+#endif /* _ASMSPARC64_PARAM_H */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-17 21:41:20 -07:00
Sam Ravnborg
f1ba03cac2 sparc: Merge asm-sparc{,64}/ioctls.h
Trivial differenses in comments - used the version from sparc64

:$ diff -u include/asm-sparc/ioctls.h include/asm-sparc64/ioctls.h
:-- include/asm-sparc/ioctls.h	2008-06-13 08:46:29.000000000 +0200
:++ include/asm-sparc64/ioctls.h	2008-06-13 08:46:29.000000000 +0200
:@@ -1,5 +1,5 @@
:-#ifndef _ASM_SPARC_IOCTLS_H
:-#define _ASM_SPARC_IOCTLS_H
:+#ifndef _ASM_SPARC64_IOCTLS_H
:+#define _ASM_SPARC64_IOCTLS_H
:
: #include <asm/ioctl.h>
:
:@@ -22,7 +22,7 @@
:
: /* Note that all the ioctls that are not available in Linux have a
:  * double underscore on the front to: a) avoid some programs to
:- * thing we support some ioctls under Linux (autoconfiguration stuff)
:+ * think we support some ioctls under Linux (autoconfiguration stuff)
:  */
: /* Little t */
: #define TIOCGETD	_IOR('t', 0, int)
:@@ -110,7 +110,7 @@
: #define TIOCSERGETLSR   0x5459 /* Get line status register */
: #define TIOCSERGETMULTI 0x545A /* Get multiport config  */
: #define TIOCSERSETMULTI 0x545B /* Set multiport config */
:-#define TIOCMIWAIT	0x545C /* Wait input */
:+#define TIOCMIWAIT	0x545C /* Wait for change on serial input line(s) */
: #define TIOCGICOUNT	0x545D /* Read serial port inline interrupt counts */
:
: /* Kernel definitions */
:@@ -133,4 +133,4 @@
: #define TIOCPKT_NOSTOP		16
: #define TIOCPKT_DOSTOP		32
:
:-#endif /* !(_ASM_SPARC_IOCTLS_H) */
:+#endif /* !(_ASM_SPARC64_IOCTLS_H) */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-17 21:41:16 -07:00
Sam Ravnborg
278864fac7 sparc: Merge asm-sparc{,64}/ioctl.h
:$ diff -u include/asm-sparc/ioctl.h include/asm-sparc64/ioctl.h
:-- include/asm-sparc/ioctl.h	2008-06-13 06:46:39.000000000 +0200
:++ include/asm-sparc64/ioctl.h	2008-06-13 08:46:29.000000000 +0200
:@@ -1,5 +1,5 @@
:-#ifndef _SPARC_IOCTL_H
:-#define _SPARC_IOCTL_H
:+#ifndef _SPARC64_IOCTL_H
:+#define _SPARC64_IOCTL_H
:
:/*
:* Our DIR and SIZE overlap in order to simulteneously provide
:@@ -64,4 +64,4 @@
:#define IOCSIZE_MASK    (_IOC_XSIZEMASK << _IOC_SIZESHIFT)
:#define IOCSIZE_SHIFT   (_IOC_SIZESHIFT)
:
:-#endif /* !(_SPARC_IOCTL_H) */
:+#endif /* !(_SPARC64_IOCTL_H) */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-17 21:41:06 -07:00
Sam Ravnborg
09d3e1baa1 sparc: copy exported sparc64 specific header files to asm-sparc
Copy was done using the following simple script:

set -e
SPARC64="h display7seg.h envctrl.h psrcompat.h pstate.h uctx.h utrap.h watchdog.h"
for FILE in ${SPARC64}; do
	if [ -f asm-sparc/$FILE ]; then
		echo $FILE exist in asm-sparc
	fi
	cat asm-sparc64/$FILE > asm-sparc/$FILE
	printf "#include <asm-sparc/$FILE>\n" > asm-sparc64/$FILE
done

The name of the copied files are added to asm-sparc/Kbuild
to keep "make headers_check" functional.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-17 21:40:49 -07:00
David S. Miller
597631f2ea sparc64 Kbuild: apb.h and bbc.h should not be exported to userspace
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 21:38:47 -07:00
Sam Ravnborg
3f261e829f sparc: Merge include/asm-sparc{,64}/perfctr.h
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 21:38:42 -07:00
Sam Ravnborg
fc491d7da8 sparc: Merge include/asm-sparc{,64}/openpromio.h
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 21:38:36 -07:00
Adrian Bunk
d6eaadfbbd sparc: remove PROM_AP1000
This seems to be left from the long gone AP1000 support.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 21:38:24 -07:00
Adrian Bunk
908f5162ca sparc64/kernel/: make code static
This patch makes the following needlessly global code static:
- central.c: struct central_bus
- central.c: struct fhc_list
- central.c: apply_fhc_ranges()
- central.c: apply_central_ranges()
- ds.c: struct ds_states_template[]
- pci_msi.c: sparc64_setup_msi_irq()
- pci_msi.c: sparc64_teardown_msi_irq()
- pci_sun4v.c: struct sun4v_dma_ops
- sys_sparc32.c: cp_compat_stat64()

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 21:38:08 -07:00
Adrian Bunk
50215d6511 sparc/mm/: possible cleanups
This patch contains the following possible cleanups:
- make the following needlessly global code static:
  - fault.c: force_user_fault()
  - init.c: calc_max_low_pfn()
  - init.c: pgt_cache_water[]
  - init.c: map_high_region()
  - srmmu.c: hwbug_bitmask
  - srmmu.c: srmmu_swapper_pg_dir
  - srmmu.c: srmmu_context_table
  - srmmu.c: is_hypersparc
  - srmmu.c: srmmu_cache_pagetables
  - srmmu.c: srmmu_nocache_size
  - srmmu.c: srmmu_nocache_end
  - srmmu.c: srmmu_get_nocache()
  - srmmu.c: srmmu_free_nocache()
  - srmmu.c: srmmu_early_allocate_ptable_skeleton()
  - srmmu.c: srmmu_nocache_calcsize()
  - srmmu.c: srmmu_nocache_init()
  - srmmu.c: srmmu_alloc_thread_info()
  - srmmu.c: early_pgtable_allocfail()
  - srmmu.c: srmmu_early_allocate_ptable_skeleton()
  - srmmu.c: srmmu_allocate_ptable_skeleton()
  - srmmu.c: srmmu_inherit_prom_mappings()
  - sunami.S: tsunami_copy_1page
- remove the following unused code:
  - init.c: struct sparc_aliases

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 21:38:01 -07:00
Adrian Bunk
c61c65cdcd sparc/kernel/: possible cleanups
This patch contains the following possible cleanups:
- make the following needlessly global code static:
  - apc.c: apc_swift_idle()
  - ebus.c: ebus_blacklist_irq()
  - ebus.c: fill_ebus_child()
  - ebus.c: fill_ebus_device()
  - entry.S: syscall_is_too_hard
  - etra: tsetup_sun4c_stackchk
  - head.S: cputyp
  - head.S: prom_vector_p
  - idprom.c: Sun_Machines[]
  - ioport.c: _sparc_find_resource()
  - ioport.c: create_proc_read_entry()
  - irq.c: struct sparc_irq[]
  - rtrap.S: sun4c_rett_stackchk
  - setup.c: prom_sync_me()
  - setup.c: boot_flags
  - sun4c_irq.c: sun4c_sbint_to_irq()
  - sun4d_irq.c: sbus_tid[]
  - sun4d_irq.c: struct sbus_actions
  - sun4d_irq.c: sun4d_sbint_to_irq()
  - sun4m_irq.c: sun4m_sbint_to_irq()
  - sun4m_irq.c: sun4m_get_irqmask()
  - sun4m_irq.c: sun4m_timers
  - sun4m_smp.c: smp4m_cross_call()
  - sun4m_smp.c: smp4m_blackbox_id()
  - sun4m_smp.c: smp4m_blackbox_current()
  - time.c: sp_clock_typ
  - time.c: sbus_time_init()
  - traps.c: instruction_dump()
  - wof.S: spwin_sun4c_stackchk
  - wuf.S: sun4c_fwin_stackchk
- #if 0 the following unused code:
  - process.c: sparc_backtrace_lock
  - process.c: __show_backtrace()
  - process.c: show_backtrace()
  - process.c: smp_show_backtrace_all_cpus()
- remove the following unused code:
  - entry.S: __handle_exception
  - smp.c: smp_num_cpus
  - smp.c: smp_activated
  - smp.c: __cpu_number_map[]
  - smp.c: __cpu_logical_map[]
  - smp.c: bitops_spinlock
  - traps.c: trap_curbuf
  - traps.c: trapbuf[]
  - traps.c: linux_smp_still_initting
  - traps.c: thiscpus_tbr
  - traps.c: thiscpus_mid

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 21:37:46 -07:00
David S. Miller
93245dd6d3 pkt_sched: Don't used locked skb_queue_purge() in __qdisc_reset_queue()
We have to have exclusive access to the given qdisc anyways, so
doing even more locking is superfluous.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:32 -07:00
David S. Miller
8387400092 pkt_sched: Kill netdev_queue lock.
We can simply use the qdisc->q.lock for all of the
qdisc tree synchronization.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:30 -07:00
David S. Miller
c7e4f3bbb4 pkt_sched: Kill qdisc_lock_tree and qdisc_unlock_tree.
No longer used.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:29 -07:00
David S. Miller
78a5b30b73 pkt_sched: Rework {sch,tbf}_tree_lock().
Make sch_tree_lock() lock the qdisc's root.  All of the
users hold the RTNL semaphore and the root qdisc is not
changing.

Implement tbf_tree_{lock,unlock}() simply in terms of
sch_tree_{lock,unlock}().

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:28 -07:00
David S. Miller
ead81cc5fc netdevice: Move qdisc_list back into net_device proper.
And give it it's own lock.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:26 -07:00
David S. Miller
37437bb2e1 pkt_sched: Schedule qdiscs instead of netdev_queue.
When we have shared qdiscs, packets come out of the qdiscs
for multiple transmit queues.

Therefore it doesn't make any sense to schedule the transmit
queue when logically we cannot know ahead of time the TX
queue of the SKB that the qdisc->dequeue() will give us.

Just for sanity I added a BUG check to make sure we never
get into a state where the noop_qdisc is scheduled.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:20 -07:00
David S. Miller
7698b4fcab pkt_sched: Add and use qdisc_root() and qdisc_root_lock().
When code wants to lock the qdisc tree state, the logic
operation it's doing is locking the top-level qdisc that
sits of the root of the netdev_queue.

Add qdisc_root_lock() to represent this and convert the
easiest cases.

In order for this to work out in all cases, we have to
hook up the noop_qdisc to a dummy netdev_queue.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:19 -07:00
David S. Miller
e2627c8c22 pkt_sched: Make QDISC_RUNNING a qdisc state.
Currently it is associated with a netdev_queue, but when we have
qdisc sharing that no longer makes any sense.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:18 -07:00
David S. Miller
d3b753db7c pkt_sched: Move gso_skb into Qdisc.
We liberate any dangling gso_skb during qdisc destruction.

It really only matters for the root qdisc.  But when qdiscs
can be shared by multiple netdev_queue objects, we can't
have the gso_skb in the netdev_queue any more.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:18 -07:00
David S. Miller
92831bc395 netdev: Kill plain netif_schedule()
No more users.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:16 -07:00
David S. Miller
51cb6db0f5 mac80211: Reimplement WME using ->select_queue().
The only behavior change is that we do not drop packets under any
circumstances.  If that is absolutely needed, we could easily add it
back.

With cleanups and help from Johannes Berg.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:12 -07:00
David S. Miller
eae792b722 netdev: Add netdev->select_queue() method.
Devices or device layers can set this to control the queue selection
performed by dev_pick_tx().

This function runs under RCU protection, which allows overriding
functions to have some way of synchronizing with things like dynamic
->real_num_tx_queues adjustments.

This makes the spinlock prefetch in dev_queue_xmit() a little bit
less effective, but that's the price right now for correctness.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:10 -07:00
David S. Miller
e3c50d5d25 netdev: netdev_priv() can now be sane again.
The private area of a netdev is now at a fixed offset once more.

Unfortunately, some assumptions that netdev_priv() == netdev->priv
crept back into the tree.  In particular this happened in the
loopback driver.  Make it use netdev->ml_priv.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:09 -07:00
David S. Miller
6b0fb1261a netdev: Kill struct net_device_subqueue and netdev->egress_subqueue*
No longer used.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:08 -07:00
David S. Miller
fd2ea0a79f net: Use queue aware tests throughout.
This effectively "flips the switch" by making the core networking
and multiqueue-aware drivers use the new TX multiqueue structures.

Non-multiqueue drivers need no changes.  The interfaces they use such
as netif_stop_queue() degenerate into an operation on TX queue zero.
So everything "just works" for them.

Code that really wants to do "X" to all TX queues now invokes a
routine that does so, such as netif_tx_wake_all_queues(),
netif_tx_stop_all_queues(), etc.

pktgen and netpoll required a little bit more surgery than the others.

In particular the pktgen changes, whilst functional, could be largely
improved.  The initial check in pktgen_xmit() will sometimes check the
wrong queue, which is mostly harmless.  The thing to do is probably to
invoke fill_packet() earlier.

The bulk of the netpoll changes is to make the code operate solely on
the TX queue indicated by by the SKB queue mapping.

Setting of the SKB queue mapping is entirely confined inside of
net/core/dev.c:dev_pick_tx().  If we end up needing any kind of
special semantics (drops, for example) it will be implemented here.

Finally, we now have a "real_num_tx_queues" which is where the driver
indicates how many TX queues are actually active.

With IGB changes from Jeff Kirsher.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:07 -07:00
David S. Miller
1d8ae3fdeb pkt_sched: Remove RR scheduler.
This actually fixes a bug added by the RR scheduler changes.  The
->bands and ->prio2band parameters were being set outside of the
sch_tree_lock() and thus could result in strange behavior and
inconsistencies.

It might be possible, in the new design (where there will be one qdisc
per device TX queue) to allow similar functionality via a TX hash
algorithm for RR but I really see no reason to export this aspect of
how these multiqueue cards actually implement the scheduling of the
the individual DMA TX rings and the single physical MAC/PHY port.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:04 -07:00
David S. Miller
09e83b5d7d netdev: Kill NETIF_F_MULTI_QUEUE.
There is no need for a feature bit for something that
can be tested by simply checking the TX queue count.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:03 -07:00
David S. Miller
e8a0464cc9 netdev: Allocate multiple queues for TX.
alloc_netdev_mq() now allocates an array of netdev_queue
structures for TX, based upon the queue_count argument.

Furthermore, all accesses to the TX queues are now vectored
through the netdev_get_tx_queue() and netdev_for_each_tx_queue()
interfaces.  This makes it easy to grep the tree for all
things that want to get to a TX queue of a net device.

Problem spots which are not really multiqueue aware yet, and
only work with one queue, can easily be spotted by grepping
for all netdev_get_tx_queue() calls that pass in a zero index.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-17 19:21:00 -07:00
Dan Williams
2a46fa13d7 iop_adma: cleanup iop_chan_xor_slot_count
- use a table for iop13xx, trade text for data
- shrink the iop3xx to a cache line

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-17 17:59:56 -07:00
Dan Williams
0839875e0c async_tx: make async_tx_test_ack a boolean routine
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-17 17:59:56 -07:00
Dan Williams
3dce017137 async_tx: remove depend_tx from async_tx_sync_epilog
All callers of async_tx_sync_epilog have called async_tx_quiesce on the
depend_tx, so async_tx_sync_epilog need only call the callback to
complete the operation.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-17 17:59:55 -07:00
Dan Williams
d2c52b7983 async_tx: export async_tx_quiesce
Replace open coded "wait and acknowledge" instances with async_tx_quiesce.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-07-17 17:59:55 -07:00
Joel Becker
a6795e9ebb configfs: Allow ->make_item() and ->make_group() to return detailed errors.
The configfs operations ->make_item() and ->make_group() currently
return a new item/group.  A return of NULL signifies an error.  Because
of this, -ENOMEM is the only return code bubbled up the stack.

Multiple folks have requested the ability to return specific error codes
when these operations fail.  This patch adds that ability by changing the
->make_item/group() ops to return ERR_PTR() values.  These errors are
bubbled up appropriately.  NULL returns are changed to -ENOMEM for
compatibility.

Also updated are the in-kernel users of configfs.

This is a rework of reverted commit 11c3b79218.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
2008-07-17 15:21:29 -07:00
Ingo Molnar
393d81aa02 Merge branch 'linus' into xen-64bit 2008-07-17 23:57:20 +02:00
Joel Becker
f89ab8619e Revert "configfs: Allow ->make_item() and ->make_group() to return detailed errors."
This reverts commit 11c3b79218.  The code
will move to PTR_ERR().

Signed-off-by: Joel Becker <joel.becker@oracle.com>
2008-07-17 14:53:48 -07:00
H. Peter Anvin
4fdf08b5bf x86: unify and correct the GDT_ENTRY() macro
Merge the GDT_ENTRY() macro between arch/x86/boot/pm.c and
arch/x86/kernel/acpi/sleep.c and put the new one in
<asm-x86/segment.h>.

While we're at it, correct the bitmasks for the limit and flags.  The
new version relies on using ULL constants in order to cause type
promotion rather than explicit casts; this avoids having to include
<linux/types.h> in <asm-x86/segments.h>.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-07-17 11:29:24 -07:00
Dimitri Sivanich
8cac39b99b [IA64] Update ia64 mmr list for SGI uv
This patch updates the ia64 mmr list for SGI uv.

Signed-off-by: Dimitri Sivanich <sivanich@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-07-17 11:27:05 -07:00