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2006-10-12sh: SH-4A UBC supportRyusuke Sakato
A simple patch to enable the UBC on SH-4A. Signed-off-by: Ryusuke Sakato <sakato@hsdv.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-10-12sh: interrupt exception handling reworkPaul Mundt
Kill off interrupt_table for all of the CPU subtypes, we now default in to stepping in to do_IRQ() for _all_ IRQ exceptions and counting the spurious ones, rather than simply flipping on the ones we cared about. This and enabling the IRQ by default automatically has already uncovered a couple of bugs and IRQs that weren't being caught, as well as some that are being generated far too often (SCI Tx Data Empty, for example). The general rationale is to use a marker for interrupt exceptions, test for it in the handle_exception() path, and skip out to do_IRQ() if it's found. Everything else follows the same behaviour of finding the cached EXPEVT value in r2/r2_bank, we just rip out the INTEVT read from entry.S entirely (except for in the kGDB NMI case, which is another matter). Note that while this changes the do_IRQ() semantics regarding r4 handling, they were fundamentally broken anyways (relying entirely on r2_bank for the cached code). With this, we do the INTEVT read from do_IRQ() itself (in the CONFIG_CPU_HAS_INTEVT case), or fall back on r4 for the muxed IRQ number, which should also be closer to what SH-2 and SH-2A want anyways. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-10-06sh: Convert IPR-IRQ to IRQ chip.Paul Mundt
One more initial conversion.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-10-06sh: Convert INTC2 IRQ handler to irq_chip.Paul Mundt
More struct irq_chip conversions, this time the INTC2 handlers. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-10-06sh: Updates for IRQ handler changes.Paul Mundt
Trivial fixes for build breakage introduced by IRQ handler changes. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-10-06sh: Kill off timer_ops get_frequency().Paul Mundt
We're not using this anywhere these days, kill it off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-10-06sh: First step at generic timeofday support.Paul Mundt
At the moment we wrap GENERIC_TIME around our existing timer API. As boards start providing their own clocksources, they're able to select GENERIC_TIME accordingly and optimize out most of the timer API. Once the current timers have been reworked as proper clocksource drivers, the rest of the place holders for the timer API can go away and we can flip on GENERIC_TIME unconditionally. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-10-03fix file specification in commentsUwe Zeisberger
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>
2006-10-03sh: Kill off remaining config.h references.Paul Mundt
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>
2006-10-03sh: Initial gitignore listPaul Mundt
Ignore build-time generated files. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-10-03sh: build fixes for defconfigs.Paul Mundt
Get all of the defconfigs building again. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-10-02[PATCH] provide kernel_execve on all architecturesArnd Bergmann
This adds the new kernel_execve function on all architectures that were using _syscall3() to implement execve. The implementation uses code from the _syscall3 macros provided in the unistd.h header file. I don't have cross-compilers for any of these architectures, so the patch is untested with the exception of i386. Most architectures can probably implement this in a nicer way in assembly or by combining it with the sys_execve implementation itself, but this should do it for now. [bunk@stusta.de: m68knommu build fix] [markh@osdl.org: build fix] [bero@arklinux.org: build fix] [ralf@linux-mips.org: mips fix] [schwidefsky@de.ibm.com: s390 fix] 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: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Bernhard Rosenkraenzer <bero@arklinux.org> Signed-off-by: Mark Haverkamp <markh@osdl.org> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-02[PATCH] namespaces: utsname: use init_utsname when appropriateSerge E. Hallyn
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>
2006-10-02[PATCH] namespaces: utsname: switch to using uts namespacesSerge E. Hallyn
Replace references to system_utsname to the per-process uts namespace where appropriate. This includes things like uname. Changes: Per Eric Biederman's comments, use the per-process uts namespace for ELF_PLATFORM, sunrpc, and parts of net/ipv4/ipconfig.c [jdike@addtoit.com: UML fix] [clg@fr.ibm.com: cleanup] [akpm@osdl.org: build 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> Signed-off-by: Cedric Le Goater <clg@fr.ibm.com> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-02[PATCH] nsproxy: move init_nsproxy into kernel/nsproxy.cSerge E. Hallyn
Move the init_nsproxy definition out of arch/ into kernel/nsproxy.c. This avoids all arches having to be updated. Compiles and boots on s390. 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> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-02[PATCH] namespaces: add nsproxySerge E. Hallyn
This patch adds a nsproxy structure to the task struct. Later patches will move the fs namespace pointer into this structure, and introduce a new utsname namespace into the nsproxy. The vserver and openvz functionality, then, would be implemented in large part by virtualizing/isolating more and more resources into namespaces, each contained in the nsproxy. [akpm@osdl.org: build fix] Signed-off-by: Serge 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> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-02[PATCH] cpumask: export cpu_online_map and cpu_possible_map consistentlyGreg Banks
cpumask: ensure that the cpu_online_map and cpu_possible_map bitmasks, and hence all the macros in <linux/cpumask.h> that require them, are available to modules for all supported combinations of architecture and CONFIG_SMP. Signed-off-by: Greg Banks <gnb@melbourne.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-01[PATCH] kill wall_jiffiesAtsushi Nemoto
With 2.6.18-rc4-mm2, now wall_jiffies will always be the same as jiffies. So we can kill wall_jiffies completely. This is just a cleanup and logically should not change any real behavior except for one thing: RTC updating code in (old) ppc and xtensa use a condition "jiffies - wall_jiffies == 1". This condition is never met so I suppose it is just a bug. I just remove that condition only instead of kill the whole "if" block. [heiko.carstens@de.ibm.com: s390 build fix and cleanup] Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> 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: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-29[PATCH] simplify update_times (avoid jiffies/jiffies_64 aliasing problem)Atsushi Nemoto
Pass ticks to do_timer() and update_times(), and adjust x86_64 and s390 timer interrupt handler with this change. Currently update_times() calculates ticks by "jiffies - wall_jiffies", but callers of do_timer() should know how many ticks to update. Passing ticks get rid of this redundant calculation. Also there are another redundancy pointed out by Martin Schwidefsky. This cleanup make a barrier added by 5aee405c662ca644980c184774277fc6d0769a84 needless. So this patch removes it. As a bonus, this cleanup make wall_jiffies can be removed easily, since now wall_jiffies is always synced with jiffies. (This patch does not really remove wall_jiffies. It would be another cleanup patch) Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: john stultz <johnstul@us.ibm.com> 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> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Ian Molton <spyro@f2s.com> Cc: Mikael Starvik <starvik@axis.com> Acked-by: David Howells <dhowells@redhat.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Hirokazu Takata <takata.hirokazu@renesas.com> Acked-by: 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> Acked-by: "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>
2006-09-27sh: Calculate shm alignment at runtime.Paul Mundt
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>
2006-09-27sh: Initial vsyscall page support.Paul Mundt
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>
2006-09-27sh: More intelligent entry_mask/way_size calculation.Paul Mundt
Figure out the cache desc entry_mask at runtime, and remove hard-coded assumption about the cacheline size. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Support for L2 cache on newer SH-4A CPUs.Paul Mundt
This implements preliminary support for the L2 caches found on newer SH-4A CPUs. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Update kexec support for API changes.Paul Mundt
This was falling a bit behind.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Optimized readsl()/writesl() support.Paul Mundt
Implement optimized copies of readsl()/writesl(). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Report movli.l/movco.l capabilities.Paul Mundt
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>
2006-09-27sh: CPU flags in AT_HWCAP in ELF auxvt.Paul Mundt
Encode processor flags in AT_HWCAP in the ELF auxiliary vector. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Add support for 4K stacks.Paul Mundt
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>
2006-09-27sh: stack debugging support.Paul Mundt
This adds a DEBUG_STACK_USAGE and DEBUG_STACKOVERFLOW for SH. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: machvec rework.Paul Mundt
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>
2006-09-27sh: Cleanup IRQ disabling for hardirq handlers.Paul Mundt
The generic hardirq layer already takes care of a lot of the appropriate locking and disabling for us, no need to duplicate it in the handlers.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: maskreg IRQ support.Paul Mundt
Formerly implemented by ADX, we can use this generically, so move it over. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Kill off the rest of the legacy rtc mess.Paul Mundt
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>
2006-09-27sh: Add support for SH7706/SH7710/SH7343 CPUs.Paul Mundt
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>
2006-09-27sh: Add setup code for various CPU subtypes.Paul Mundt
This adds some simple setup code for most of the CPU subtypes, primarily simple platform device registration. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: sem2mutex conversion for clock framework.Paul Mundt
Simple sem2mutex conversion. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: pselect6 and ppoll, along with signal trampoline rework.Paul Mundt
This implements support for ppoll() and pselect6().. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: __addr_ok() and other misc nommu fixups.Yoshinori Sato
A few more outstanding nommu fixups.. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: __NR_restart_syscall support.Paul Mundt
This implements support for __NR_restart_syscall. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Make PAGE_OFFSET configurable.Paul Mundt
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>
2006-09-27sh: math-emu supportTakashi YOSHII
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>
2006-09-27sh: Rename rtc_get/set_time() to avoid RTC_CLASS conflict.Paul Mundt
We have a clash with RTC_CLASS over these names, so we change them.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Fixup __strnlen_user() behaviour.Paul Mundt
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>
2006-09-27sh: More cosmetic cleanups and trivial fixes.Paul Mundt
Nothing exciting here, just trivial fixes.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Consolidated SH7751/SH7780 PCI support.Paul Mundt
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>
2006-09-27sh: kgdb stub cleanups.Paul Mundt
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>
2006-09-27sh: APM/PM support.Andriy Skulysh
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>
2006-09-27sh: Add support for R7780RP and R7780MP boards.Paul Mundt
This adds support for the Renesas SH7780 development boards, R7780RP and R7780MP. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Store Queue API rework.Paul Mundt
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>
2006-09-27sh: Board updates for I/O routine rework.Paul Mundt
This updates the various boards for some of the recent I/O routine updates. Signed-off-by: Paul Mundt <lethal@linux-sh.org>