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2006-10-09[MIPS] Make sure cpu_has_fpu is used only in atomic contextAtsushi Nemoto
Make sure cpu_has_fpu (which uses smp_processor_id()) is used only in atomic context. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-09[MIPS] Fix build errors related to wbflush.h on tx4927/tx4938.Atsushi Nemoto
TX49 CPUs have a SYNC instruction so that CONFIG_CPU_HAS_WB is no longer needed. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-09[MIPS] Alchemy: nuke usbdev; it's useless as is ...Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-09[MIPS] Malta: Fix build for non-MIPS32/64 configuration.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-09[MIPS] NUMA: Register all nodes before cpus or sysfs will barf.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-09[MIPS] ret_from_irq adjustmentAtsushi Nemoto
Make sure that RA on top of interrupt stack is an address of ret_from_irq, so that dump_stack etc. can trace info interrupted context. Also this patch fixes except_vec_vi_handler and __smtc_ipi_vector which seems broken. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-09[MIPS] Fix RM9000 wait instruction detection.Ralf Baechle
Only revisions < 4.0 don't have a functional wait instruction. From Thomas Koeller (Thomas.Koeller@baslerweb.com). Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-09IRQ: Use the new typedef for interrupt handler function pointersDavid Howells
Use the new typedef for interrupt handler function pointers rather than actually spelling out the full thing each time. This was scripted with the following small shell script: #!/bin/sh egrep -nHrl -e 'irqreturn_t[ ]*[(][*]' $* | while read i do echo $i perl -pi -e 's/irqreturn_t\s*[(]\s*[*]\s*([_a-zA-Z0-9]*)\s*[)]\s*[(]\s*int\s*,\s*void\s*[*]\s*[)]/irq_handler_t \1/g' $i || exit $? done Signed-Off-By: David Howells <dhowells@redhat.com>
2006-10-09[MIPS] Cleanup unnecessary <asm/ptrace.h> inclusions.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-09[MIPS] DEC: pt_regs fixes for buserror handlersRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-09[MIPS] Fix return type of gt64120_irq.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-09[MIPS] Ocelot C: Build fix - ll_mv64340_irq takes no more regs argument.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-09[MIPS] Jazz defconfig file.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-09[MIPS] Jazz: build fix - include <linux/screen_info.h>Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-09[MIPS] Jazz: Remove warning. After 7 years probably somebody test this ;)Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-09[MIPS] Jazz: Fix I/O port resources.Ralf Baechle
struct resource members were shuffeled a while ago. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-09[MIPS] DEC: pt_regs fixes for dec_intr_halt.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-08[MIPS] Complete fixes after removal of pt_regs argument to int handlers.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-08[MIPS] Show actual CPU information in /proc/cpuinfoKarl-Johan Karlsson
Currently, /proc/cpuinfo contains several copies of the information for whatever processor we happen to be scheduled on. This patch makes it contain the proper information for each CPU, which is particularly useful on mixed R12k/R10k IP27 machines. Signed-off-by: Karl-Johan Karlsson <creideiki@lysator.liu.se> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-08[MIPS] Cobalt: Time runs too quicklyScott Ashcroft
A kernel built with HZ==250 runs about 4 four times too quickly on a Cobalt RaQ2. Signed-off-by: Scott Ashcroft <scott.ashcroft@talk21.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-08[MIPS] Update Malta config.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-05IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-04[MIPS] PNX8550 fixupsVitaly Wool
This patch fixes the compilation errors on PNX8550 and hard-to-track bug in interrupt handling. It also corresponds to the latest changes in PNX8550 serial driver. Signed-off-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (39 commits) Add missing maintainer countries in CREDITS Fix bytes <-> kilobytes typo in Kconfig for ramdisk fix a typo in Documentation/pi-futex.txt BUG_ON conversion for fs/xfs/ BUG_ON() conversion in fs/nfsd/ BUG_ON conversion for fs/reiserfs BUG_ON cleanups in arch/i386 BUG_ON cleanup in drivers/net/tokenring/ BUG_ON cleanup for drivers/md/ kerneldoc-typo in led-class.c debugfs: spelling fix rcutorture: Fix incorrect description of default for nreaders parameter parport: Remove space in function calls Michal Wronski: update contact info Spelling fix: "control" instead of "cotrol" reboot parameter in Documentation/kernel-parameters.txt Fix copy&waste bug in comment in scripts/kernel-doc remove duplicate "until" from kernel/workqueue.c ite_gpio fix tabbage fix file specification in comments ... Fixed trivial path conflicts due to removed files: arch/mips/dec/boot/decstation.c, drivers/char/ite_gpio.c
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>
2006-10-03Attack of "the the"s in archMatt LaPlante
The patch below corrects multiple occurances of "the the" typos across several files, both in source comments and KConfig files. There is no actual code changed, only text. Note this only affects the /arch directory, and I believe I could find many more elsewhere. :) Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03[MIPS] Fix wreckage after removal of tickadj; convert to GENERIC_TIME.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-03[MIPS] DECstation defconfig updateMaciej W. Rozycki
Sanitise a number of settings for the DECstation. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-03[MIPS] Fix size of zones_size and zholes_size arrayAtsushi Nemoto
Commit f06a96844a577c43249fce25809a4fae07407f46 broke MIPS. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-03[MIPS] BCM1480: Mask pending interrupts against c0_status.im.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-03[MIPS] SB1250: Interrupt handler fixesMaciej W. Rozycki
Mask cp0.status against cp0.cause. Additionally, spurious interrupts are not recorded. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-03[MIPS] Remove IT8172-based platforms, ITE 8172G and Globespan IVR support.Yoichi Yuasa
As per feature-removal-schedule.txt. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-03[MIPS] BCM1250: TRDY timeout tweaks for Broadcom SiByte systemsMaciej W. Rozycki
It was obesrved that at least one older PCI card predating the requirement for the TRDY signal to respond within 16 clock ticks actually does not meet this rule nor even the power-on defaults of the PCI bridges found in development systems built around the Broadcom SiByte SOCs. Here is a patch that bumps up the timeout to the highest finite value supported by these chips, which is 255 clock ticks. The bridges affected are the SiByte SOC itself and the SP1011. This change does not effectively affect systems only having PCI option cards installed that meet the TRDY requirement of the current PCI spec. The rule was introduced with PCI 2.1, so any older card may make the system affected. If this is the case, performance of the system will suffer in return for the card working at all. If this is a concern, then the solution is not to use such cards. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> ---
2006-10-03[MIPS] Remove dead DECstation boot codeMaciej W. Rozycki
Code in arch/mips/dec/boot/ has been dead for long. Let's get rid of it before some epidemic spreads. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-03Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-serialLinus Torvalds
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-serial: (21 commits) [SERIAL] add PNP IDs for FPI based touchscreens [SERIAL] Magic SysRq SAK does nothing on serial consoles [SERIAL] tickle NMI watchdog on serial output. [SERIAL] Fix oops when removing suspended serial port [SERIAL] Fix resume handling bug [SERIAL] Remove wrong asm/serial.h inclusions [SERIAL] CONFIG_PM=n slim: drivers/serial/8250_pci.c [SERIAL] OMAP1510 serial fix for 115200 baud [SERIAL] returning proper error from serial core driver [SERIAL] Make uart_line_info() correctly tell MMIO from I/O port [SERIAL] suspend/resume handlers don't have level arg anymore [SERIAL] 8250 resourse management fixes [SERIAL] serial_cs: Add quirk for brainboxes 2-port RS232 card [SERIAL] serial_cs: handle Nokia multi->single port bodge via config quirk [SERIAL] serial_cs: add configuration quirk [SERIAL] serial_cs: Convert Oxford 950 / Possio GCC wakeup quirk [SERIAL] serial_cs: convert IBM post-init handling to a quirk [SERIAL] serial_cs: allow wildcarded quirks [SERIAL] serial_cs: convert multi-port table to quirk table [SERIAL] serial_cs: Use clean up multiport card detection ...
2006-10-03[PATCH] VFS: Make filldir_t and struct kstat deal in 64-bit inode numbersDavid Howells
These patches make the kernel pass 64-bit inode numbers internally when communicating to userspace, even on a 32-bit system. They are required because some filesystems have intrinsic 64-bit inode numbers: NFS3+ and XFS for example. The 64-bit inode numbers are then propagated to userspace automatically where the arch supports it. Problems have been seen with userspace (eg: ld.so) using the 64-bit inode number returned by stat64() or getdents64() to differentiate files, and failing because the 64-bit inode number space was compressed to 32-bits, and so overlaps occur. This patch: Make filldir_t take a 64-bit inode number and struct kstat carry a 64-bit inode number so that 64-bit inode numbers can be passed back to userspace. The stat functions then returns the full 64-bit inode number where available and where possible. If it is not possible to represent the inode number supplied by the filesystem in the field provided by userspace, then error EOVERFLOW will be issued. Similarly, the getdents/readdir functions now pass the full 64-bit inode number to userspace where possible, returning EOVERFLOW instead when a directory entry is encountered that can't be properly represented. Note that this means that some inodes will not be stat'able on a 32-bit system with old libraries where they were before - but it does mean that there will be no ambiguity over what a 32-bit inode number refers to. Note similarly that directory scans may be cut short with an error on a 32-bit system with old libraries where the scan would work before for the same reasons. It is judged unlikely that this situation will occur because modern glibc uses 64-bit capable versions of stat and getdents class functions exclusively, and that older systems are unlikely to encounter unrepresentable inode numbers anyway. [akpm: alpha build fix] Signed-off-by: David Howells <dhowells@redhat.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-02Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Remove unused galileo-boars header files [MIPS] Rename SERIAL_PORT_DEFNS for EV64120 [MIPS] Add UART IRQ number for EV64120 [MIPS] Remove excite_flash.c [MIPS] Update i8259 resources. [MIPS] Make unwind_stack() can dig into interrupted context [MIPS] Stacktrace build-fix and improvement [MIPS] QEMU: Add support for little endian mips [MIPS] Remove __flush_icache_page [MIPS] lockdep: update defconfigs [MIPS] lockdep: Add STACKTRACE_SUPPORT and enable LOCKDEP_SUPPORT [MIPS] lockdep: fix TRACE_IRQFLAGS_SUPPORT
2006-10-02[PATCH] BLOCK: Revert patch to hack around undeclared sigset_t in linux/compat.hDavid Howells
Revert Andrew Morton's patch to temporarily hack around the lack of a declaration of sigset_t in linux/compat.h to make the block-disablement patches build on IA64. This got accidentally pushed to Linus and should be fixed in a different manner. Also make linux/compat.h #include asm/signal.h to gain a definition of sigset_t so that it can externally declare sigset_from_compat(). This has been compile-tested for i386, x86_64, ia64, mips, mips64, frv, ppc and ppc64 and run-tested on frv. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-02[PATCH] replace cad_pid by a struct pidCedric Le Goater
There are a few places in the kernel where the init task is signaled. The ctrl+alt+del sequence is one them. It kills a task, usually init, using a cached pid (cad_pid). This patch replaces the pid_t by a struct pid to avoid pid wrap around problem. The struct pid is initialized at boot time in init() and can be modified through systctl with /proc/sys/kernel/cad_pid [ I haven't found any distro using it ? ] It also introduces a small helper routine kill_cad_pid() which is used where it seemed ok to use cad_pid instead of pid 1. [akpm@osdl.org: cleanups, build fix] Signed-off-by: Cedric Le Goater <clg@fr.ibm.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.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: 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>
2006-10-01[MIPS] Remove excite_flash.cYoichi Yuasa
excite_flashtest.c is unused. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-01[MIPS] Update i8259 resources.Yoichi Yuasa
Updated i8259 resources to same as i386. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-01[MIPS] Make unwind_stack() can dig into interrupted contextAtsushi Nemoto
If the PC was ret_from_irq or ret_from_exception, there will be no more normal stackframe. Instead of stopping the unwinding, use PC and RA saved by an exception handler to continue unwinding into the interrupted context. This also simplifies the CONFIG_STACKTRACE code. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-01[MIPS] Stacktrace build-fix and improvementAtsushi Nemoto
Fix build error due to stacktrace API change. Now save_stack_trace() tries to save all kernel context, including interrupts and exception. Also some asm code are changed a bit so that we can detect the end of current context easily. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-01[MIPS] QEMU: Add support for little endian mipsAurelien Jarno
This very small patch adds support for little endian on the virtual QEMU mips platform. The status of this platform is the same as the big endian one, ie it is possible to boot a system with init=/bin/sh. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-01[MIPS] Remove __flush_icache_pageAtsushi Nemoto
__flash_icache_page is unused, so kill it. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-01[MIPS] lockdep: update defconfigsAtsushi Nemoto
Add those lines to all defconfigs. CONFIG_LOCKDEP_SUPPORT=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_TRACE_IRQFLAGS_SUPPORT=y This is a patch againt linux-mips.org git tree. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>