1
Commit Graph

824 Commits

Author SHA1 Message Date
David S. Miller
b1422401f2 [SPARC64]: More sparse warning fixes in process.c
arch/sparc64/kernel/process.c:504:17: warning: symbol 'sparc_do_fork' was not declared. Should it be static?
arch/sparc64/kernel/process.c:655:5: warning: symbol 'dump_fpu' was not declared. Should it be static?
arch/sparc64/kernel/process.c:708:16: warning: symbol 'sparc_execve' was not declared. Should it be static?

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-19 21:25:50 -08:00
David S. Miller
02947ecb0d [SPARC64]: Kill show_regs32().
Unused, noticed via sparse.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-19 21:18:08 -08:00
David S. Miller
3ac1da338b [SPARC64]: Fix sparse warnings wrt. __show_regs().
arch/sparc64/kernel/process.c:219:6: warning: symbol '__show_regs' was not declared. Should it be static?

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-19 20:48:58 -08:00
David S. Miller
5bbdb48d4c [SPARC64]: Kill show_stackframe{,32}().
Noticed via sparse:

arch/sparc64/kernel/process.c:215:6: warning: symbol 'show_stackframe' was not declared. Should it be static?
arch/sparc64/kernel/process.c:243:6: warning: symbol 'show_stackframe32' was not declared. Should it be static?

It is totally unused.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-19 20:42:11 -08:00
David S. Miller
c3c2524031 [SPARC64]: Fix sparse warnings wrt. machine_alt_power_off().
arch/sparc64/kernel/process.c:123:6: warning: symbol 'machine_alt_power_off' was not declared. Should it be static?

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-19 20:39:18 -08:00
David S. Miller
8c5b4a3f43 [SPARC64]: Kill pcic_present().
And also it's helper function pci_is_controller().  Both
are unused.

I can't remove the equivalent from sparc32 yet as some
ancient bus probing code still uses that platform's version.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-18 16:40:10 -08:00
David S. Miller
667bc389c7 [SPARC]: Kill 'prom_palette'.
The idea of this thing is we could save/restore the firmware's
palette when breaking in and out of the firmware prompt.

Only one driver implemented this (atyfb) and it's value is
questionable.  If you're just debugging you don't really
care that the characters end up being purple or whatever.

And we can provide better debugging and firmware command
facilities with minimal in-kernel console I/O drivers.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-18 15:28:16 -08:00
David S. Miller
101788b0ab [SPARC64]: Kill 'prom_keyboard'.
Nothing ever sets it, so it just takes up space.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-18 15:21:30 -08:00
David S. Miller
1d5509aa69 [SPARC]: Kill extern decl of 'panic_setup'.
This was made static in kernel/panic.c a long time ago.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-18 15:17:58 -08:00
David S. Miller
9a2f258ad5 [SPARC64]: Delete 'boot_flags'.
It is write-only, nothing tests it's value.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-18 15:16:20 -08:00
David S. Miller
a3d41704d4 [SPARC64]: Kill unused function 'kernel_enter_debugger'.
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-18 15:13:48 -08:00
S.Çağlar Onur
cbc9fc5dec [SPARC64] arch/sparc64/kernel/unaligned.c: Use time_* macros
The functions time_before, time_before_eq, time_after, and
time_after_eq are more robust for comparing jiffies against other
values.

So following patch implements usage of the time_after() macro, defined
at linux/jiffies.h, which deals with wrapping correctly

Signed-off-by: S.Çağlar Onur <caglar@pardus.org.tr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-17 23:24:10 -08:00
David S. Miller
3c62a2d347 [SPARC64]: Always register a PROM based early console.
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-17 23:22:50 -08:00
Robert P. J. Day
b83ebf566b [SPARC64]: Use shorter "get_zeroed_page" call.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-12 22:09:29 -08:00
Stephen Rothwell
7b98ac24ef [SPARC]: Remove of_platform_device_create
There are no callers of this on the Sparc platforms.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-09 03:49:58 -08:00
David S. Miller
d38f122066 [SPARC64]: Add kretprobe support.
Passes the smoke tests at least, powerpc implementation was used
as a guide.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-09 03:42:22 -08:00
David S. Miller
13fa14e185 [SPARC64]: Add SG merging support back into IOMMU code.
Mimicks almost perfectly the powerpc IOMMU code, except that it
doesn't have the IOMMU_PAGE_SIZE != PAGE_SIZE handling, and it also
lacks the device dma mask support bits.

I'll add that later as time permits, but this gets us at least back to
where we were beforehand.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-09 03:15:36 -08:00
David S. Miller
d284142cba [SPARC64]: IOMMU allocations using iommu-helper layer.
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-09 03:15:04 -08:00
David S. Miller
19814ea24e [SPARC64]: iommu_common.h tidy ups...
Add missing multiple-include guards and update copyright.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-09 03:15:04 -08:00
David S. Miller
0507468a80 [SPARC64]: Remove unused declarations from iommu_common.h
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-09 03:15:03 -08:00
Linus Torvalds
f3aafa6c25 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Make use of the new fs/compat_binfmt_elf.c
  [SPARC64]: Make use of compat_sys_ptrace()

Manually fixed trivial delete/modift conflict in arch/sparc64/kernel/binfmt_elf32.c
2008-02-08 09:29:39 -08:00
Harvey Harrison
edde08f2a8 misc: removal of final callers using fastcall
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:31 -08:00
David Howells
1eb1141123 aout: remove unnecessary inclusions of {asm, linux}/a.out.h
Remove now unnecessary inclusions of {asm,linux}/a.out.h.

[akpm@linux-foundation.org: fix alpha build]
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:30 -08:00
David Howells
7fa3031500 aout: suppress A.OUT library support if !CONFIG_ARCH_SUPPORTS_AOUT
Suppress A.OUT library support if CONFIG_ARCH_SUPPORTS_AOUT is not set.

Not all architectures support the A.OUT binfmt, so the ELF binfmt should not
be permitted to go looking for A.OUT libraries to load in such a case.  Not
only that, but under such conditions A.OUT core dumps are not produced either.

To make this work, this patch also does the following:

 (1) Makes the existence of the contents of linux/a.out.h contingent on
     CONFIG_ARCH_SUPPORTS_AOUT.

 (2) Renames dump_thread() to aout_dump_thread() as it's only called by A.OUT
     core dumping code.

 (3) Moves aout_dump_thread() into asm/a.out-core.h and makes it inline.  This
     is then included only where needed.  This means that this bit of arch
     code will be stored in the appropriate A.OUT binfmt module rather than
     the core kernel.

 (4) Drops A.OUT support for Blackfin (according to Mike Frysinger it's not
     needed) and FRV.

This patch depends on the previous patch to move STACK_TOP[_MAX] out of
asm/a.out.h and into asm/processor.h as they're required whether or not A.OUT
format is available.

[jdike@addtoit.com: uml: re-remove accidentally restored code]
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08 09:22:30 -08:00
David S. Miller
48c946a482 [SPARC64]: Make use of the new fs/compat_binfmt_elf.c
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-08 00:08:10 -08:00
David S. Miller
2ba85f3a58 [SPARC64]: Make use of compat_sys_ptrace()
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-07 22:46:09 -08:00
David S. Miller
9473272af3 [SPARC64]: Use regsets in arch_ptrace().
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-07 05:06:12 -08:00
David S. Miller
3389742f3c [SPARC64]: Use regsets for ELF core dumping.
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-07 04:19:34 -08:00
David S. Miller
e72d71c405 [SPARC64]: Remove unintentional ptrace debugging messages.
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-07 03:30:21 -08:00
David S. Miller
9775369ec0 [SPARC]: Move over to arch_ptrace().
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-07 03:00:17 -08:00
David S. Miller
190aa9f60f [SPARC]: Remove PTRACE_SUN* handling.
Supporting SunOS ptrace() is pretty pointless and these
kinds of quirks keep us from being able to share more
code with other platforms.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-07 02:59:22 -08:00
David S. Miller
38282764e3 [SPARC]: Kill DEBUG_PTRACE code.
It has long exceeded it's usefulness.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-07 02:59:08 -08:00
David S. Miller
d09c2a23ee [SPARC64]: Add user regsets.
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-07 02:58:58 -08:00
David S. Miller
ce22e1d394 [SPARC64]: Fix booting on non-zero cpu.
The early per-cpu handling needs a slight tweak to work when booting
on a non-zero cpu.

We got away with this for a long time, but can't any longer as now
even printk() calls functions (cpu_clock() for example) that thus make
early references to per-cpu variables.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-07 02:58:40 -08:00
Linus Torvalds
e33f6635da Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Temporarily remove IOMMU merging code.
  [SPARC64]: Update defconfig.
  [SPARC]: Add new timerfd syscall entries.
2008-02-06 10:46:58 -08:00
Adrian Bunk
6c81c32f96 calibrate_delay() must be __cpuinit
calibrate_delay() must be __cpuinit, not __{dev,}init.

I've verified that this is correct for all users.

While doing the latter, I also did the following cleanups:
- remove pointless additional prototypes in C files
- ensure all users #include <linux/delay.h>

This fixes the following section mismatches with CONFIG_HOTPLUG=n,
CONFIG_HOTPLUG_CPU=y:

WARNING: vmlinux.o(.text+0x1128d): Section mismatch: reference to .init.text.1:calibrate_delay (between 'check_cx686_slop' and 'set_cx86_reorder')
WARNING: vmlinux.o(.text+0x25102): Section mismatch: reference to .init.text.1:calibrate_delay (between 'smp_callin' and 'cpu_coregroup_map')

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Christian Zankel <chris@zankel.net>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:08 -08:00
Eric Dumazet
9cfe015aa4 get rid of NR_OPEN and introduce a sysctl_nr_open
NR_OPEN (historically set to 1024*1024) actually forbids processes to open
more than 1024*1024 handles.

Unfortunatly some production servers hit the not so 'ridiculously high
value' of 1024*1024 file descriptors per process.

Changing NR_OPEN is not considered safe because of vmalloc space potential
exhaust.

This patch introduces a new sysctl (/proc/sys/fs/nr_open) wich defaults to
1024*1024, so that admins can decide to change this limit if their workload
needs it.

[akpm@linux-foundation.org: export it for sparc64]
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:06 -08:00
Andrew Morton
941e492bdb read_current_timer() cleanups
- All implementations can be __devinit

- The function prototypes were in asm/timex.h but they all must be the same,
  so create a single declaration in linux/timex.h.

- uninline the sparc64 version to match the other architectures

- Don't bother #defining ARCH_HAS_READ_CURRENT_TIMER to a particular value.

[ezk@cs.sunysb.edu: fix build]
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:02 -08:00
David S. Miller
38192d52f1 [SPARC64]: Temporarily remove IOMMU merging code.
Changeset fde6a3c82d ("iommu sg merging:
sparc64: make iommu respect the segment size limits") broke sparc64
because whilst it added the segment limiting code to the first pass of
SG mapping (in prepare_sg()) it did not add matching code to the
second pass handling (in fill_sg())

As a result the two passes disagree where the segment boundaries
should be, resulting in OOPSes, DMA corruption, and corrupted
superblocks.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-06 04:12:25 -08:00
David S. Miller
3db1d97a81 [SPARC]: Add new timerfd syscall entries.
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-06 04:12:23 -08:00
Linus Torvalds
3098a1801f Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]  pci_sun4v.c: Section fixes.
2008-02-05 10:08:47 -08:00
FUJITA Tomonori
fde6a3c82d iommu sg merging: sparc64: make iommu respect the segment size limits
This patch makes iommu respect segment size limits when merging sg
lists.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:10 -08:00
Davide Libenzi
4d672e7ac7 timerfd: new timerfd API
This is the new timerfd API as it is implemented by the following patch:

int timerfd_create(int clockid, int flags);
int timerfd_settime(int ufd, int flags,
		    const struct itimerspec *utmr,
		    struct itimerspec *otmr);
int timerfd_gettime(int ufd, struct itimerspec *otmr);

The timerfd_create() API creates an un-programmed timerfd fd.  The "clockid"
parameter can be either CLOCK_MONOTONIC or CLOCK_REALTIME.

The timerfd_settime() API give new settings by the timerfd fd, by optionally
retrieving the previous expiration time (in case the "otmr" parameter is not
NULL).

The time value specified in "utmr" is absolute, if the TFD_TIMER_ABSTIME bit
is set in the "flags" parameter.  Otherwise it's a relative time.

The timerfd_gettime() API returns the next expiration time of the timer, or
{0, 0} if the timerfd has not been set yet.

Like the previous timerfd API implementation, read(2) and poll(2) are
supported (with the same interface).  Here's a simple test program I used to
exercise the new timerfd APIs:

http://www.xmailserver.org/timerfd-test2.c

[akpm@linux-foundation.org: coding-style cleanups]
[akpm@linux-foundation.org: fix ia64 build]
[akpm@linux-foundation.org: fix m68k build]
[akpm@linux-foundation.org: fix mips build]
[akpm@linux-foundation.org: fix alpha, arm, blackfin, cris, m68k, s390, sparc and sparc64 builds]
[heiko.carstens@de.ibm.com: fix s390]
[akpm@linux-foundation.org: fix powerpc build]
[akpm@linux-foundation.org: fix sparc64 more]
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:07 -08:00
Adrian Bunk
4c62225871 [SPARC64] pci_sun4v.c: Section fixes.
WARNING: vmlinux.o(.text+0x39be4): Section mismatch in reference from the function probe_existing_entries() to the function .init.text:page_in_phys_avail()

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-05 03:01:43 -08:00
Adrian Bunk
3ff6eecca4 remove __attribute_used__
Remove the deprecated __attribute_used__.

[Introduce __section in a few places to silence checkpatch /sam]

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-28 23:21:18 +01:00
Sam Ravnborg
01ba2bdc6b all archs: consolidate init and exit sections in vmlinux.lds.h
This patch consolidate all definitions of .init.text, .init.data
and .exit.text, .exit.data section definitions in
the generic vmlinux.lds.h.

This is a preparational patch - alone it does not buy
us much good.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-28 23:21:17 +01:00
Jan Engelhardt
872e2be7c4 [SPARC]: Constify function pointer tables.
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-22 18:29:20 -08:00
Sam Ravnborg
a1f35ba374 [SPARC64]: Fix of section mismatch warnings.
Fix following Section mismatch warning in sparc64:

WARNING: arch/sparc64/kernel/built-in.o(.text+0x13dec): Section mismatch: reference to .devinit.text:pci_scan_one_pbm (between 'psycho_scan_bus' and 'psycho_pbm_init')
WARNING: arch/sparc64/kernel/built-in.o(.text+0x14b58): Section mismatch: reference to .devinit.text:pci_scan_one_pbm (between 'sabre_scan_bus' and 'sabre_init')
WARNING: arch/sparc64/kernel/built-in.o(.text+0x15ea4): Section mismatch: reference to .devinit.text:pci_scan_one_pbm (between 'schizo_scan_bus' and 'schizo_pbm_init')
WARNING: arch/sparc64/kernel/built-in.o(.text+0x17780): Section mismatch: reference to .devinit.text:pci_scan_one_pbm (between 'pci_sun4v_scan_bus' and 'pci_sun4v_get_head')
WARNING: arch/sparc64/kernel/built-in.o(.text+0x17d5c): Section mismatch: reference to .devinit.text:pci_scan_one_pbm (between 'pci_fire_scan_bus' and 'pci_fire_get_head')
WARNING: arch/sparc64/kernel/built-in.o(.text+0x23860): Section mismatch: reference to .devinit.text:vio_dev_release (between 'vio_create_one' and 'vio_add')
WARNING: arch/sparc64/kernel/built-in.o(.text+0x23868): Section mismatch: reference to .devinit.text:vio_dev_release (between 'vio_create_one' and 'vio_add')

The pci_* were all missing __init annotations.
For the vio.c case it was a function with a wrong annotation which was removed.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-21 22:34:30 -08:00
David S. Miller
6320bcebc0 [SPARC64]: Fix hypervisor TLB operation error reporting.
1) Trap level wasn't being passed down properly, we need to
   move it from %l4 into the correct outgoing arg register.

2) Although the TPC often provides the most direct clue, we
   have the caller PC so we should provide that as well.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-17 06:26:55 -08:00
David S. Miller
bf4a7972d6 [SPARC64]: Fix build with SPARSEMEM_VMEMMAP disabled.
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-12 21:52:16 -08:00