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* fix file specification in commentsUwe Zeisberger2006-10-035-5/+5
| | | | | | | Many files include the filename at the beginning, serveral used a wrong one. Signed-off-by: Uwe Zeisberger <Uwe_Zeisberger@digi.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* sh: Fixup __raw_read_trylock().Paul Mundt2006-10-031-1/+8
| | | | | | | | generic__raw_read_trylock() was broken, fix up the __raw_read_trylock() implementation for something sensible. Taken from m32r, which has the same use cases. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Kill off remaining config.h references.Paul Mundt2006-10-031-2/+0
| | | | | | | A few of these managed to sneak back in, get rid of them once and for all. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Initial gitignore listPaul Mundt2006-10-031-0/+3
| | | | | | Ignore build-time generated files. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: build fixes for defconfigs.Paul Mundt2006-10-033-5/+14
| | | | | | Get all of the defconfigs building again. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Kill off more dead headers.Paul Mundt2006-10-034-126/+0
| | | | | | Some old rtc and io headers were left hanging around, kill them off.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* [PATCH] remove remaining errno and __KERNEL_SYSCALLS__ referencesArnd Bergmann2006-10-021-70/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The last in-kernel user of errno is gone, so we should remove the definition and everything referring to it. This also removes the now-unused lib/execve.c file that was introduced earlier. Also remove every trace of __KERNEL_SYSCALLS__ that still remained in the kernel. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Andi Kleen <ak@muc.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ian Molton <spyro@f2s.com> Cc: Mikael Starvik <starvik@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Hirokazu Takata <takata.hirokazu@renesas.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Cc: Richard Curnow <rc@rc0.org.uk> Cc: William Lee Irwin III <wli@holomorphy.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp> Cc: Chris Zankel <chris@zankel.net> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] namespaces: utsname: use init_utsname when appropriateSerge E. Hallyn2006-10-021-1/+1
| | | | | | | | | | | | | | | | | | | | | In some places, particularly drivers and __init code, the init utsns is the appropriate one to use. This patch replaces those with a the init_utsname helper. Changes: Removed several uses of init_utsname(). Hope I picked all the right ones in net/ipv4/ipconfig.c. These are now changed to utsname() (the per-process namespace utsname) in the previous patch (2/7) [akpm@osdl.org: CIFS fix] Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> Cc: Kirill Korotaev <dev@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Herbert Poetzl <herbert@13thfloor.at> Cc: Andrey Savochkin <saw@sw.ru> Cc: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] remove SYSRQ_KEY and related defines from ppc/sh/h8300Olaf Hering2006-10-012-6/+0
| | | | | | | | | | | | | | Remove unused global SYSRQ_KEY from ppc and powerpc Remove unused define SYSRQ_KEY from sh/sh64 and h8300 Remove unused pckbd_sysrq_xlate and kbd_sysrq_xlate usage Signed-off-by: Olaf Hering <olaf@aepfle.de> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locksMartin Schwidefsky2006-10-011-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | On systems running with virtual cpus there is optimization potential in regard to spinlocks and rw-locks. If the virtual cpu that has taken a lock is known to a cpu that wants to acquire the same lock it is beneficial to yield the timeslice of the virtual cpu in favour of the cpu that has the lock (directed yield). With CONFIG_PREEMPT="n" this can be implemented by the architecture without common code changes. Powerpc already does this. With CONFIG_PREEMPT="y" the lock loops are coded with _raw_spin_trylock, _raw_read_trylock and _raw_write_trylock in kernel/spinlock.c. If the lock could not be taken cpu_relax is called. A directed yield is not possible because cpu_relax doesn't know anything about the lock. To be able to yield the lock in favour of the current lock holder variants of cpu_relax for spinlocks and rw-locks are needed. The new _raw_spin_relax, _raw_read_relax and _raw_write_relax primitives differ from cpu_relax insofar that they have an argument: a pointer to the lock structure. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds2006-09-2799-1436/+2127
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: (108 commits) sh: Fix occasional flush_cache_4096() stack corruption. sh: Calculate shm alignment at runtime. sh: dma-mapping compile fixes. sh: Initial vsyscall page support. sh: Clean up PAGE_SIZE definition for assembly use. sh: Selective flush_cache_mm() flushing. sh: More intelligent entry_mask/way_size calculation. sh: Support for L2 cache on newer SH-4A CPUs. sh: Update kexec support for API changes. sh: Optimized readsl()/writesl() support. sh: Report movli.l/movco.l capabilities. sh: CPU flags in AT_HWCAP in ELF auxvt. sh: Add support for 4K stacks. sh: Enable /proc/kcore support. sh: stack debugging support. sh: select CONFIG_EMBEDDED. sh: machvec rework. sh: Solution Engine SH7343 board support. sh: SH7710VoIPGW board support. sh: Enable verbose BUG() support. ...
| * sh: Calculate shm alignment at runtime.Paul Mundt2006-09-275-13/+4
| | | | | | | | | | | | | | Set the SHM alignment at runtime, based off of probed cache desc. Optimize get_unmapped_area() to only colour align shared mappings. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: dma-mapping compile fixes.Paul Mundt2006-09-271-17/+25
| | | | | | | | | | | | Silly bug, make it build again.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Initial vsyscall page support.Paul Mundt2006-09-276-5/+55
| | | | | | | | | | | | | | | | | | | | This implements initial support for the vsyscall page on SH. At the moment we leave it configurable due to having nommu to support from the same code base. We hook it up for the signal trampoline return at present, with more to be added later, once uClibc catches up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Clean up PAGE_SIZE definition for assembly use.Paul Mundt2006-09-271-0/+6
| | | | | | | | | | | | | | We want to be able to use PAGE_SIZE all over the place, this is the same approach adopted by other architectures.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Support for L2 cache on newer SH-4A CPUs.Paul Mundt2006-09-272-4/+6
| | | | | | | | | | | | | | This implements preliminary support for the L2 caches found on newer SH-4A CPUs. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Update kexec support for API changes.Paul Mundt2006-09-271-6/+3
| | | | | | | | | | | | This was falling a bit behind.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Optimized readsl()/writesl() support.Paul Mundt2006-09-271-0/+6
| | | | | | | | | | | | Implement optimized copies of readsl()/writesl(). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Report movli.l/movco.l capabilities.Paul Mundt2006-09-271-0/+8
| | | | | | | | | | | | | | Add llsc to cpu_flags[] and comment cpu-features.h. Signed-off-by: Jamie Lenehan <nynaeve@twibble.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: CPU flags in AT_HWCAP in ELF auxvt.Paul Mundt2006-09-273-15/+22
| | | | | | | | | | | | Encode processor flags in AT_HWCAP in the ELF auxiliary vector. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Add support for 4K stacks.Paul Mundt2006-09-272-1/+20
| | | | | | | | | | | | | | | | | | This enables support for 4K stacks on SH. Currently this depends on DEBUG_KERNEL, but likely all boards will switch to this as the default in the future. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: stack debugging support.Paul Mundt2006-09-272-5/+9
| | | | | | | | | | | | This adds a DEBUG_STACK_USAGE and DEBUG_STACKOVERFLOW for SH. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: machvec rework.Paul Mundt2006-09-271-2/+5
| | | | | | | | | | | | | | | | | | Some more machvec overhauling and setup code cleanup. Kill off get_system_type() and platform_setup(), we can do these both through the machvec. While we're add it, kill off more useless mach.c's and drop some legacy cruft from setup.c. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Solution Engine SH7343 board support.Paul Mundt2006-09-272-0/+84
| | | | | | | | | | | | This adds support for the SE7343 board. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Kill off dead boards.Paul Mundt2006-09-2711-457/+0
| | | | | | | | | | | | | | None of these have been maintained in years, and no one seems to be interested in doing so, so just get rid of them. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: New atomic ops for SH-4A movli.l/movco.lPaul Mundt2006-09-271-9/+96
| | | | | | | | | | | | | | SH-4A implements LL/SC instructions, so we implement a simple set of atomic operations using these. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Kill off the rest of the legacy rtc mess.Paul Mundt2006-09-272-190/+0
| | | | | | | | | | | | | | With the new RTC class driver, we can get rid of most of the old left over cruft. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: SHMIN board support.Takashi YOSHII2006-09-271-0/+9
| | | | | | | | | | | | | | This adds support for the SHMIN SH7706 board. Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Add support for SH7706/SH7710/SH7343 CPUs.Paul Mundt2006-09-278-15/+459
| | | | | | | | | | | | | | This adds support for the aforementioned CPU subtypes, and cleans up some build issues encountered as a result. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * serial: Add SERIAL_SH_SCI_NR_UARTS for sh-sci.Paul Mundt2006-09-271-0/+34
| | | | | | | | | | | | | | | | sh-sci needs to be able to define its number of ports to support, we do this with a config option, like most other ports do. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: pselect6 and ppoll, along with signal trampoline rework.Paul Mundt2006-09-272-32/+36
| | | | | | | | | | | | This implements support for ppoll() and pselect6().. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: __addr_ok() and other misc nommu fixups.Yoshinori Sato2006-09-273-5/+13
| | | | | | | | | | | | | | A few more outstanding nommu fixups.. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Various nommu fixes.Yoshinori Sato2006-09-275-13/+28
| | | | | | | | | | | | | | | | This fixes up some of the various outstanding nommu bugs on SH. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Make PAGE_OFFSET configurable.Paul Mundt2006-09-271-1/+1
| | | | | | | | | | | | | | | | nommu needs to be able to shift PAGE_OFFSET, so we switch it to a non-user-visible CONFIG_PAGE_OFFSET and use that in the few places where it matters. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Move voyagergx_reg.h to a more sensible place.Paul Mundt2006-09-271-1/+1
| | | | | | | | | | | | | | Other boards require this as well, so move it out of the rts7751r2d directory. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: math-emu supportTakashi YOSHII2006-09-271-0/+86
| | | | | | | | | | | | | | This implements initial math-emu support, aimed primarily at SH-3. Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Rename rtc_get/set_time() to avoid RTC_CLASS conflict.Paul Mundt2006-09-271-2/+2
| | | | | | | | | | | | | | We have a clash with RTC_CLASS over these names, so we change them.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fixup __strnlen_user() behaviour.Paul Mundt2006-09-273-54/+19
| | | | | | | | | | | | | | | | | | | | Drop TIF_USERSPACE and add addr_limit to the thread_info struct. Subsequently, use that for address checking in strnlen_user() to ward off bogus -EFAULTs. Make __strnlen_user() return 0 on exception, rather than -EFAULT. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: More cosmetic cleanups and trivial fixes.Paul Mundt2006-09-274-31/+13
| | | | | | | | | | | | Nothing exciting here, just trivial fixes.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Consolidated SH7751/SH7780 PCI support.Paul Mundt2006-09-272-3/+37
| | | | | | | | | | | | | | | | This cleans up quite a lot of the PCI mess that we currently have, and attempts to consolidate the duplication in the SH7780 and SH7751 PCI controllers. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: kgdb stub cleanups.Paul Mundt2006-09-271-0/+15
| | | | | | | | | | | | | | | | Some kgdb cleanup. Move hexchars/highhex/lowhex to the header, so it can be reused by sh-sci. Also drop silly ctrl_inl/outl() overloading being done by the kgdb stub. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: APM/PM support.Andriy Skulysh2006-09-277-3/+151
| | | | | | | | | | | | | | | | | | This adds some simple PM stubs and the basic APM interfaces, primarily for use by hp6xx, where the existing userland expects it. Signed-off-by: Andriy Skulysh <askulysh@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Free up some and document PTEL flags.Paul Mundt2006-09-271-31/+45
| | | | | | | | | | | | | | | | Drop _PAGE_SHARED/_PAGE_U0_SHARED and document Linux PTE encodings in the PTEL value. Preserve the swap cache entry encoding semantics for now, though it will need rework to free up _PAGE_WT from _PAGE_FILE. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: xchg()/__xchg() always_inline fixes for gcc4.Paul Mundt2006-09-271-25/+32
| | | | | | | | | | | | | | Make __xchg() a macro, so that gcc 4.0 doesn't blow up thanks to always_inline.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Cleanup and document register bank usage.Paul Mundt2006-09-272-3/+31
| | | | | | | | | | | | | | Initial register bank cleanup. Make SR.RB configurable, and add some preliminary documentation on register bank usage within the kernel. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Add support for R7780RP and R7780MP boards.Paul Mundt2006-09-2710-15/+236
| | | | | | | | | | | | | | This adds support for the Renesas SH7780 development boards, R7780RP and R7780MP. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Store Queue API rework.Paul Mundt2006-09-271-18/+5
| | | | | | | | | | | | | | | | | | | | | | | | Rewrite the store queue API for a per-cpu interface in the driver model. The old miscdevice is dropped, due to TASK_SIZE limitations, and no one was using it anyways. Carve up and allocate store queue space with a bitmap, back sq mapping objects with a slab cache, and let userspace worry about its own prefetching. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Board updates for I/O routine rework.Paul Mundt2006-09-2714-213/+29
| | | | | | | | | | | | | | This updates the various boards for some of the recent I/O routine updates. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fixup SHMLBA definition for SH7705.Paul Mundt2006-09-275-81/+38
| | | | | | | | | | | | | | We need this set to something sensible anywhere were we have an aliasing dcache.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: ioremap() overhaul.Paul Mundt2006-09-272-1/+13
| | | | | | | | | | | | | | | | | | | | ioremap() overhaul. Add support for transparent PMB mapping, get rid of p3_ioremap(), etc. Also drop ioremap() and iounmap() routines from the machvec, as everyone can use the generic ioremap() API instead. For PCI memory apertures and other special cases, use the pci_iomap() API, as boards are already required to get the mapping right there. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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