Commit Graph

19 Commits

Author SHA1 Message Date
Helge Deller
c84c3a698f parisc: document light weight syscall ABI
Document the LWS ABI including implementation notes for
userspace, and comment cleanup.

Remove extraneous .align 16 after lws_lock_start.

Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-03-31 02:51:35 +00:00
Kyle McMartin
dfcf753bd3 Revert "parisc: fix trivial section name warnings"
This reverts commit bd3bb8c15b.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2008-06-13 10:49:45 -04:00
Helge Deller
bd3bb8c15b parisc: fix trivial section name warnings
This trivial patch fixes the following section warnings on PARISC:
> WARNING: vmlinux.o (.text.1): unexpected section name.
>The (.[number]+) following section name are ld generated and not expected.
> Did you forget to use "ax"/"aw" in a .S file?
> Note that for example <linux/init.h> contains
> section definitions for use in .S files.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2008-05-15 10:38:54 -04:00
Kyle McMartin
873d50e2e5 [PARISC] Remove hardcoded uses of PAGE_SIZE
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18 00:59:27 -07:00
Sam Ravnborg
1c59357109 [PARISC] Kill off ASM_PAGE_SIZE use
We have the macro _AC() generally available now
so the calculation of PAGE_SIZE can be made
assembler compatible.
Introduce use of _AC() and kill all users of
ASM_PAGE_SIZE.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18 00:59:15 -07:00
Kyle McMartin
3bb457af4f [PARISC] Fix bug when syscall nr is __NR_Linux_syscalls
The bug was that we were comparing __NR_syscalls to be greater or equal
to the syscall number stored in %r20. __NR_syscalls is one greater than
the last syscall though, so we're loading one entry beyond the end of the
syscall table, and trying to jump to it.

Fix this by only checking that we're greater, alternatively, we could
have compared to (__NR_Linux_syscalls - 1)

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-06-03 17:53:45 -04:00
Kyle McMartin
376e210b71 [PARISC] fix "reduce size of task_struct on 64-bit machines" fallout
Amazingly, parisc was the only arch effected by this...
Convert register-sized loads/stores to always be 32-bit for these fields.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-05-30 02:27:46 -04:00
Aurelien Jarno
b5e8b733a1 [PARISC] Disable LWS debugging
The LWS debugging code on parisc is wrongly enabled due to a bug in the
use of the preprocessor directives. This debugging code is not thread
safe and causes problems with a recent glibc on SMP kernels.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-05-22 22:44:11 -04:00
Helge Deller
0b3d643f9e [PARISC] add ASM_EXCEPTIONTABLE_ENTRY() macro
- this macro unifies the code to add exception table entries
- additionally use ENTRY()/ENDPROC() at more places

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17 01:16:26 -05:00
Helge Deller
8e9e9844b4 [PARISC] more ENTRY(), ENDPROC(), END() conversions
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-02-17 01:16:12 -05:00
Dave Jones
038b0a6d8d Remove all inclusions of <linux/config.h>
kbuild explicitly includes this at build time.

Signed-off-by: Dave Jones <davej@redhat.com>
2006-10-04 03:38:54 -04:00
Kyle McMartin
667baef53f [PARISC] Remove unused macro fixup_branch in syscall.S
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-06-27 23:28:40 +00:00
Kyle McMartin
64f495323c [PARISC] Ensure all ldcw uses are ldcw,co on pa2.0
ldcw,co should always be used on pa2.0, otherwise the strict cache
width alignment requirement is not relaxed.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-06-27 23:28:32 +00:00
Helge Deller
2fd8303816 [PARISC] Further work for multiple page sizes
More work towards supporing multiple page sizes on 64-bit. Convert
some assumptions that 64bit uses 3 level page tables into testing
PT_NLEVELS. Also some BUG() to BUG_ON() conversions and some cleanups
to assembler.

Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-04-21 22:20:34 +00:00
Helge Deller
1bcdd85482 [PARISC] Add CONFIG_DEBUG_RODATA to protect read-only data
Add the parisc version of the "mark rodata section read only" patches.
Based on code from and Signed-off-by Arjan van de Ven
<arjan@infradead.org>, Ingo Molnar <mingo@elte.hu>, Andi Kleen <ak@muc.de>,
Andrew Morton <akpm@osdl.org>, Linus Torvalds <torvalds@osdl.org>.

Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-01-22 20:26:54 -05:00
Carlos O'Donell
aa0eecb07f [PARISC] Document some register usages in assembly files
Document clobbers and args in entry.S and syscall.S.

entry.S: Add comment to indicate that cr27 may recycle and EDEADLOCK
detection is not 100% correct. Since this is only enabled when using
ENABLE_LWS_DEBUG, the user is warned by the comment.

Signed-off-by: Carlos O'Donell <carlos@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-11-17 16:32:46 -05:00
Grant Grundler
413059f28e [PARISC] Replace uses of __LP64__ with CONFIG_64BIT
2.6.12-rc4-pa3 s/__LP64__/CONFIG_64BIT/ and fixup config.h usage

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:46:48 -04:00
Sam Ravnborg
0013a85454 kbuild: m68k,parisc,ppc,ppc64,s390,xtensa use generic asm-offsets.h support
Delete obsoleted parts form arch makefiles and rename to asm-offsets.h

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2005-09-09 20:57:26 +02:00
Linus Torvalds
1da177e4c3 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!
2005-04-16 15:20:36 -07:00