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* CRED: Wrap task credential accesses in the MIPS archDavid Howells2008-11-13
| | | | | | | | | | | | | | | | | | Wrap access to task credentials so that they can be separated more easily from the task_struct during the introduction of COW creds. Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id(). Change some task->e?[ug]id to task_e?[ug]id(). In some places it makes more sense to use RCU directly rather than a convenient wrapper; these will be addressed by later patches. Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: James Morris <jmorris@namei.org> Acked-by: Serge Hallyn <serue@us.ibm.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Signed-off-by: James Morris <jmorris@namei.org>
* CHAR: Delete old and now unused M48T35 RTC driver for SGI IP27.Ralf Baechle2008-10-30
| | | | | | | It was only used by this one SGI platform which recently was converted to RTC_LIB and with RTC_LIB enabled the legacy drivers are no more selectable. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* CHAR: Delete old and now unused DS1286 driver.Ralf Baechle2008-10-30
| | | | | | | | It was only used by two SGI platforms which recently were converted to RTC_LIB and with RTC_LIB enabled the legacy drivers are no more selectable. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
* MIPS: Sort out CPU type to name translation.Ralf Baechle2008-10-30
| | | | | | | | | | | | | As noticed by David Daney <ddaney@caviumnetworks.com>, the old long switch statement did not comply with the Linux C coding style. It was also yet another place of code to be changed when adding a new processor type leading to annoying bugs for example in /proc/cpuinfo. Fixed by moving the setting of the CPU type string into the core of the probing code and a few BUG_ON() test to ensure the CPU probing code indeed did its job and removing multiple now redundant tests. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Use the new byteorder headersHarvey Harrison2008-10-30
| | | | | | Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Probe for watch registers on cores of all vendors, not just MTI.Ralf Baechle2008-10-30
| | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: David Daney <ddaney@caviumnetworks.com>
* MIPS: Switch FPU emulator trap to BREAK instruction.Ralf Baechle2008-10-30
| | | | | | | | | | | | Arguably using the address error handler has always been ugly. But with processors that handle unaligned loads and stores in hardware the current mechanism ceases to work so switch it to a BREAK instruction and allocate break code 514 to the FPU emulator. Yoichi Yuasa provided a build fix for CONFIG_BUG=n. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
* MIPS: SMP: Do not initialize __cpu_number_map/__cpu_logical_map for CPU 0.Ralf Baechle2008-10-30
| | | | | | | | | A system isn't necessarily booted on physical processor 0 as this code assumes. Also the array happens to be allocated in .bss so it's zero initialized anyway. Systems which need to override this can do so in their mp_ops->smp_setup() method. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Consider value of c0_ebase when computing value of exception base.David Daney2008-10-30
| | | | | | | | | | | | It just so happens to be zero on all currently supported systems so this hasn't bitten yet ... [Ralf: Original patch from Cavium; handling of set_uncached_handler() and de-ifdef'ed trap_init() implementation by me.] Signed-off-by: Tomaso Paoletti <tpaoletti@caviumnetworks.com> Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Clean up MIPSxx-optimized bitop functionsRalf Baechle2008-10-30
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: New feature test macro cpu_has_mips_rRalf Baechle2008-10-30
| | | | | | | cpu_has_mips_r is true if a processor is MIPS32 or MIPS64, any architecture revision. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: RBTX4927: Add GPIO-LED supportAtsushi Nemoto2008-10-30
| | | | | Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: TXx9: Fix RBTX4939 ethernet address initializationAtsushi Nemoto2008-10-30
| | | | | | | Fix location of ethernet adddress when booted from external ROM. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: lemote/lm2e: Added io_map_base to pci controllerZhang Le2008-10-27
| | | | | Signed-off-by: Zhang Le <r0bertz@gentoo.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: TXx9: Make firmware parameter passing more robustGeert Uytterhoeven2008-10-27
| | | | | | | | | | | | | | When booting Linux on a txx9 board with VxWorks boot loader, it crashes in prom_getenv(), as VxWorks doesn't pass firmware parameters in a0-a3 (in my case, the actual leftover values in these registers were 0x80002000, 0x80001fe0, 0x2000, and 0x20). Make the parsing of argc, argv, and envp a bit more robust by checking if argc is a number below CKSEG0, and argv/envp point to CKSEG0. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Markeins: Remove unnecessary define and cleanup comments, etc.Shinya Kuribayashi2008-10-27
| | | | | Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Markeins: Extract ll_emma2rh_* functionsShinya Kuribayashi2008-10-27
| | | | | | | These functions are completely ineffective. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Markeins: Remove runtime debug printsShinya Kuribayashi2008-10-27
| | | | | | | | | Remove runtime db_* macros as we don't need them any more. In general, such helpers are useful for initial porting, but once approved, they are not indispensable. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: EMMA: Fold arch/mips/emma/{common,markeins}/irq*.c into markeins/irq.cShinya Kuribayashi2008-10-27
| | | | | | | | Current EMMA2RH irq code is mess. Before cleaning it up, gather them in one place as a first step. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: EMMA2RH: Remove emma2rh_gpio_irq_baseShinya Kuribayashi2008-10-27
| | | | | | | | Let's use immediate value, instead. This also saves memory footprint, and probably a little bit faster. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: EMMA2RH: Remove emma2rh_sw_irq_baseShinya Kuribayashi2008-10-27
| | | | | | | | Let's use immediate value, instead. This also saves memory footprint, and probably a little bit faster. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: EMMA2RH: Remove emma2rh_irq_base global variableShinya Kuribayashi2008-10-27
| | | | | | | | Let's use immediate value, instead. This also saves memory footprint, and probably a little bit faster. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: EMMA2RH: Remove emma2rh_sync on read operationShinya Kuribayashi2008-10-27
| | | | | | | It's totally a waste of CPU cycles. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: EMMA: Move <asm/emma2rh> to <asm/emma> dirShinya Kuribayashi2008-10-27
| | | | | | | We'll put all EMMA related headers there in the future. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: EMMA: Move arch/mips/emma2rh/ into arch/mips/emma/Shinya Kuribayashi2008-10-27
| | | | | | | | git mv arch/mips/{emma2rh,emma} and fixups Makefiles. We'll put all NEC EMMA series based machines there in the future. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: EMMA: Kconfig reorganizationShinya Kuribayashi2008-10-27
| | | | | | | | | - Move EMMA related stuff into arch/mips/emma/Kconfig - Create CONFIG_SOC_EMMA* to handle more EMMA SoCs effectively - Rename CONFIG_MARKEINS into CONFIG_NEC_MARKEINS Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Add CONFIG_CPU_R5500 for NEC VR5500 series processorsShinya Kuribayashi2008-10-27
| | | | | | | | | | | | We already have sufficient infrastructure to support VR5500 and VR5500A series processors. Here's a Makefile support to make it selectable by ports, and enable it for NEC EMMA2RH Markeins board. This patch also fixes a confused target help, and adds 1Gb PageMask bits supported by VR5500 and its variants. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: RB532: Disable the right devicePhil Sutter2008-10-27
| | | | | Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Add support for NXP PNX833x (STB222/5) into linux kernelDaniel Laird2008-10-27
| | | | | | | | | | The following patch add support for the NXP PNX833x SOC. More specifically it adds support for the STB222/5 variant. It fixes the vectored interrupt issue. Signed-off-by: daniel.j.laird <daniel.j.laird@nxp.com> Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: TXx9: CONFIG_TOSHIBA_RBTX4939 spellingGeert Uytterhoeven2008-10-27
| | | | | | | | Fix a typo in the comment for the TOSHIBA_RBTX4939 config option Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Fix KGDB build errorYoichi Yuasa2008-10-27
| | | | | | | | | | | | | In file included from include/linux/ptrace.h:49, from arch/mips/kernel/kgdb.c:25: /home/yuasa/src/linux/test/mips/linux/arch/mips/include/asm/ptrace.h:123: error: expected declaration specifiers or '...' before '__s64' /home/yuasa/src/linux/test/mips/linux/arch/mips/include/asm/ptrace.h:124: error: expected declaration specifiers or '...' before '__s64' /home/yuasa/src/linux/test/mips/linux/arch/mips/include/asm/ptrace.h:126: error: expected declaration specifiers or '...' before '__u32' /home/yuasa/src/linux/test/mips/linux/arch/mips/include/asm/ptrace.h:127: error: expected declaration specifiers or '...' before '__u32' make[1]: *** [arch/mips/kernel/kgdb.o] Error 1 Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: IP22: ip22-int.c header file weeding.Ralf Baechle2008-10-27
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: IP22: Small cleanupsDmitri Vorobiev2008-10-27
| | | | | | | | | | | | | | The following functions disable_local1_irq() disable_local2_irq() disable_local3_irq() are needlessly defined global, so make them static. While at it, fix a whitespace error in the same file. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: RBTX4939: Add smc91x supportAtsushi Nemoto2008-10-27
| | | | | | | Add smc91x platform device to RBTX4939 board and some hacks for big endian. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: TXx9: 7 segment LED supportAtsushi Nemoto2008-10-27
| | | | | | | | Add sysfs interface for 7 segment LED and implement access routine for RBTX4939. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Alchemy: Wire up SD controller on DB/PB1200 boards.Manuel Lauss2008-10-27
| | | | | | | | Add au1xmmc platform data for PB1200/DB1200 boards and wire up the 2 SD controllers for them. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: RB532: Set gpio interrupt status and level for CompactFlashFlorian Fainelli2008-10-27
| | | | | | | | This patch sets the correct interrupt status and level in order to get the CompactFlash adapter working. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: RB532: Fix build errorAdrian Bunk2008-10-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | mips/pci/fixup-rc32434.c must #include <asm/mach-rc32434/irq.h> This patch fixes the following compile error caused by commit 606a083b1e1a357cb66454e4581b80f1a67d8368 (MIPS: RB532: Cleanup the headers again): <-- snip --> ... CC arch/mips/pci/fixup-rc32434.o arch/mips/pci/fixup-rc32434.c: In function 'pcibios_map_irq': arch/mips/pci/fixup-rc32434.c:46: error: 'GROUP4_IRQ_BASE' undeclared (first use in this function) arch/mips/pci/fixup-rc32434.c:46: error: (Each undeclared identifier is reported only once arch/mips/pci/fixup-rc32434.c:46: error: for each function it appears in.) make[2]: *** [arch/mips/pci/fixup-rc32434.o] Error 1 <-- snip --> A virtually identical patch was also submitted by Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Fix KGDB build errorDavid Daney2008-10-27
| | | | | | | | | | | <asm/ptrace.h> is exported to userland so can't include <linux/ptrace.h>, so replace the C99 types with their basic C type equivalents. Bug originally reported and initial patch by Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Set ENOSYS to errno on illegal system call number for syscall(2)Atsushi Nemoto2008-10-27
| | | | | Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Set positive error number to errno on illegal_syscallAtsushi Nemoto2008-10-27
| | | | | Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: SMP: Don't reenable interrupts in stop_this_cpu; use WAIT instruction.Ralf Baechle2008-10-27
| | | | | | Noticed by Anirban Sinha <ASinha@zeugmasystems.com>; patch by me. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Don't unmap the memory for dma_sync*.David Daney2008-10-27
| | | | | | | | | We were getting away with this for so long only because the only platform with a non-empty plat_unmap_dma_mem() doesn't call dma_sync_sg_for_cpu() and dma_sync_sg_for_device() from its commonly used drivers. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Fix debugfs_create_*'s error checking method for mips/kernel/Zhaolei2008-10-27
| | | | | | | | | debugfs_create_*() returns NULL on error. Make its callers return -ENODEV on error. Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Fix debugfs_create_*'s error checking method for arch/mips/math-emu/Zhaolei2008-10-27
| | | | | | | | debugfs_create_*() returns NULL on error. Make its caller debugfs_fpuemu return -ENODEV on error. Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* TXx9: Add TX4938 ATA support (v3)Atsushi Nemoto2008-10-23
| | | | | | | | | | Add a helper routine to register tx4938ide driver and use it on RBTX4938 board. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Merge branch 'for-linus' of ↵Linus Torvalds2008-10-23
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile: (21 commits) OProfile: Fix buffer synchronization for IBS oprofile: hotplug cpu fix oprofile: fixing whitespaces in arch/x86/oprofile/* oprofile: fixing whitespaces in arch/x86/oprofile/* oprofile: fixing whitespaces in drivers/oprofile/* x86/oprofile: add the logic for enabling additional IBS bits x86/oprofile: reordering functions in nmi_int.c x86/oprofile: removing unused function parameter in add_ibs_begin() oprofile: more whitespace fixes oprofile: whitespace fixes OProfile: Rename IBS sysfs dir into "ibs_op" OProfile: Rework string handling in setup_ibs_files() OProfile: Rework oprofile_add_ibs_sample() function oprofile: discover counters for op ppro too oprofile: Implement Intel architectural perfmon support oprofile: Don't report Nehalem as core_2 oprofile: drop const in num counters field Revert "Oprofile Multiplexing Patch" x86, oprofile: BUG: using smp_processor_id() in preemptible code x86/oprofile: fix on_each_cpu build error ... Manually fixed trivial conflicts in drivers/oprofile/{cpu_buffer.c,event_buffer.h}
| * oprofile: more whitespace fixesRobert Richter2008-10-15
| | | | | | | | Signed-off-by: Robert Richter <robert.richter@amd.com>
* | mips: use bcd2bin/bin2bcdAdrian Bunk2008-10-20
| | | | | | | | | | | | | | | | | | | | Changes mips to use the new bcd2bin/bin2bcd functions instead of the obsolete BCD_TO_BIN/BIN_TO_BCD/BCD2BIN/BIN2BCD macros. Signed-off-by: Adrian Bunk <bunk@kernel.org> 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>
* | container freezer: implement freezer cgroup subsystemMatt Helsley2008-10-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements a new freezer subsystem in the control groups framework. It provides a way to stop and resume execution of all tasks in a cgroup by writing in the cgroup filesystem. The freezer subsystem in the container filesystem defines a file named freezer.state. Writing "FROZEN" to the state file will freeze all tasks in the cgroup. Subsequently writing "RUNNING" will unfreeze the tasks in the cgroup. Reading will return the current state. * Examples of usage : # mkdir /containers/freezer # mount -t cgroup -ofreezer freezer /containers # mkdir /containers/0 # echo $some_pid > /containers/0/tasks to get status of the freezer subsystem : # cat /containers/0/freezer.state RUNNING to freeze all tasks in the container : # echo FROZEN > /containers/0/freezer.state # cat /containers/0/freezer.state FREEZING # cat /containers/0/freezer.state FROZEN to unfreeze all tasks in the container : # echo RUNNING > /containers/0/freezer.state # cat /containers/0/freezer.state RUNNING This is the basic mechanism which should do the right thing for user space task in a simple scenario. It's important to note that freezing can be incomplete. In that case we return EBUSY. This means that some tasks in the cgroup are busy doing something that prevents us from completely freezing the cgroup at this time. After EBUSY, the cgroup will remain partially frozen -- reflected by freezer.state reporting "FREEZING" when read. The state will remain "FREEZING" until one of these things happens: 1) Userspace cancels the freezing operation by writing "RUNNING" to the freezer.state file 2) Userspace retries the freezing operation by writing "FROZEN" to the freezer.state file (writing "FREEZING" is not legal and returns EIO) 3) The tasks that blocked the cgroup from entering the "FROZEN" state disappear from the cgroup's set of tasks. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: export thaw_process] Signed-off-by: Cedric Le Goater <clg@fr.ibm.com> Signed-off-by: Matt Helsley <matthltc@us.ibm.com> Acked-by: Serge E. Hallyn <serue@us.ibm.com> Tested-by: Matt Helsley <matthltc@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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