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2008-01-30spinlock: lockbreak cleanupNick Piggin1-0/+5
The break_lock data structure and code for spinlocks is quite nasty. Not only does it double the size of a spinlock but it changes locking to a potentially less optimal trylock. Put all of that under CONFIG_GENERIC_LOCKBREAK, and introduce a __raw_spin_is_contended that uses the lock data itself to determine whether there are waiters on the lock, to be used if CONFIG_GENERIC_LOCKBREAK is not set. Rename need_lockbreak to spin_needbreak, make it use spin_is_contended to decouple it from the spinlock implementation, and make it typesafe (rwlocks do not have any need_lockbreak sites -- why do they even get bloated up with that break_lock then?). Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30mips, x86: optimize the i8259 code a bitRalf Baechle1-8/+4
The timer code always calls the clock_event_device set_net_event and set_mode methods with interrupts disabled, so no need to use spin_lock_irqsave / spin_unlock_irqrestore for those. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Acked-by:Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-29Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds162-2553/+3295
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (68 commits) [MIPS] remove Documentation/mips/GT64120.README [MIPS] Malta: remaining bits of the board support code cleanup [MIPS] Malta: make the helper function static [MIPS] Malta: fix braces at single statement blocks [MIPS] Malta, Atlas: move an extern function declaration to the header file [MIPS] Malta: Use C89 style for comments [MIPS] Malta: else should follow close brace in malta_int.c [MIPS] Malta: remove a superfluous comment [MIPS] Malta: include <linux/cpu.h> instead of <asm/cpu.h> [MIPS] Malta, Atlas, Sead: remove an extern from .c files [MIPS] Malta: fix oversized lines in malta_int.c [MIPS] Malta: remove a dead function declaration [MIPS] Malta: use tabs not spaces [MIPS] Malta: set up the screen info in a separate function [MIPS] Malta: check the PCI clock frequency in a separate function [MIPS] Malta: use the KERN_ facility level in printk() [MIPS] Malta: use Linux kernel style for structure initialization [MIPS]: constify function pointer tables [MIPS] compat: handle argument endianess of sys32_(f)truncate64 with merge_64 [MIPS] Cobalt 64-bits kernels can be safely unmarked experimental ...
2008-01-29[MIPS] Malta: remaining bits of the board support code cleanupDmitri Vorobiev1-38/+42
This patch factors out the code, which handles the Bonito system controller. The case of not supporting the DMA coherency is handled separately to make the logic obvious. Besides, a couple of empty lines added to beautify the code even further. No functional changes introduced. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Malta: make the helper function staticDmitri Vorobiev1-1/+1
One helper function can become static. This patch adds the needed keyword. No functional changes introduced. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Malta: fix braces at single statement blocksDmitri Vorobiev2-3/+3
This patch fixes a couple of warnings reported by checkpatch.pl. No functional changes introduced. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Malta, Atlas: move an extern function declaration to the header fileDmitri Vorobiev2-8/+0
This was compile-tested using default configs for the boards affected by this change. This patch does not introduce any functional changes. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Malta: Use C89 style for commentsDmitri Vorobiev1-2/+2
Remove comments in C99 style and make checkpatch.pl happy. No functional changes introduced. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Malta: else should follow close brace in malta_int.cDmitri Vorobiev1-4/+2
This patch fixes two errors reported by checkpatch.pl. No functional changes introduced. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Malta: remove a superfluous commentDmitri Vorobiev1-1/+0
Using the "We die here" comment right before calling the die() function is an extremely vivid example of overcommenting. Remove the redundant comment and save one line. No functional changes introduced. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Malta: include <linux/cpu.h> instead of <asm/cpu.h>Dmitri Vorobiev2-4/+4
The checkpatch.pl script reported a few warnings about header files. This patch fixes these warnings. Compile-tested using the default Malta config. No functional changes introduced. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Malta, Atlas, Sead: remove an extern from .c filesDmitri Vorobiev3-6/+0
This patch moves the "extern" declaration for the function mips_reboot_setup() from the board setup .c files to the header file include/asm-mips/mips-boards/generic.h. This fixes a warning produced by the checkpatch.pl script. No functional changes introduced. This was compile-tested by building the kernel for all three boards affected by this change. All builds finished successfully. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Malta: fix oversized lines in malta_int.cDmitri Vorobiev1-6/+16
This patch fixes all "line over 80 characters" warnings found in arch/mips/mips-boards/malta/malta_int.c by the checkpatch.pl script. No functional changes introduced. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Malta: remove a dead function declarationDmitri Vorobiev1-1/+0
Neither is the mips_rtc_get_time() routine defined anywhere in the MIPS architecture-specific code, nor does anyone call it any more. This patch removes the extern declaration of this fossil. This patch does not introduce any functional changes. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Malta: use tabs not spacesDmitri Vorobiev2-33/+33
This patch fixes all "use tabs not spaces" warnings reported by the checkpatch.pl script on the board-specific files. No functional changes introduced. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Malta: set up the screen info in a separate functionDmitri Vorobiev1-17/+22
This patch adds a separate short and sweet function to initialize the screen_info global variable. This improves readability of the Malta board setup code. No functional changes introduced. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Malta: check the PCI clock frequency in a separate functionDmitri Vorobiev1-18/+25
This patch adds a separate short and sweet function to check the PCI clock frequency. This is to improve readability of the Malta setup code. Along the way, a couple of coding style violations are fixed. No functional changes introduced. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Malta: use the KERN_ facility level in printk()Dmitri Vorobiev1-13/+14
This patch adds the KERN_ macros to printk() calls. Where applicable, spaces are replaced by tabs. These changes noticeably reduce the number of errors and warnings reported by the checkpatch.pl script for the malta_int.c file. Before the patch: total: 47 errors, 20 warnings, 354 lines checked After the patch: total: 34 errors, 7 warnings, 355 lines checked No functional changes introduced. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Malta: use Linux kernel style for structure initializationDmitri Vorobiev1-14/+42
This patch reformats the structure initialization code thus making the latter look idiomatic. No functional changes introduced. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS]: constify function pointer tablesJan Engelhardt2-2/+2
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] compat: handle argument endianess of sys32_(f)truncate64 with merge_64Ralf Baechle1-25/+5
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Cobalt 64-bits kernels can be safely unmarked experimentalFlorian Fainelli1-1/+1
64-bits Cobalt kernels run fine. Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Qemu: Remove platform.Ralf Baechle53-318/+0
The Qemu platform was originally implemented to have an easily supportable platform until Qemu reaches a state where it emulates a real world system. Since the latest release Qemu is capable of emulating the MIPSsim and Malta platforms, so this goal has been reached. The Qemu plaform is also rather underfeatured so less useful than a Malta emulation. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] pnx8xxx: clocksource cleanupsVitaly Wool1-24/+11
Signed-off-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Lasat: Convert pvc_sem semaphore to mutexDaniel Walker3-13/+10
I also changed the name to pvc_mutex, and moved the define to the file it's used in which allows it to be static. Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] MTX-1: Add GPIO system buttonFlorian Fainelli2-1/+27
This patch adds support for the GPIO connected system button on the MTX-1 boards. Default configuration is updated accordingly. Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] move the eXcite local config to excitedirectoryYoichi Yuasa2-10/+10
Moved the eXcite local config to excite directory. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] add cpu_wait() to machine_halt()Yoichi Yuasa1-1/+6
Added cpu_wait() to machine_halt(). For the power reduction in halt. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] remove unneeded button check for resetYoichi Yuasa1-19/+2
Removed unneeded button check for reset. Because, the Cobalt has power switch. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] move vr41xx_calculate_clock_frequency() to plat_time_init()Yoichi Yuasa1-2/+2
Moved vr41xx_calculate_clock_frequency() to plat_time_init(). This function relates to the timer function. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] time: remove unused mips_timer_state()Yoichi Yuasa2-3/+0
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Altas, Malta: Switch boot file format to raw.Ralf Baechle2-2/+4
A raw binary boots about twice as fast as SREC. The possibility to generate SREC binaries remains by simply using the vmlinux.srec target but seems only useful for the probably hypothetical case where one of these systems is booted over a serial interface. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Extend performance counter event field.Ralf Baechle1-1/+1
The latest draft version of the MIPS Architecture Specification extends the 6 bit event field by adding a directly adjacent 4-bit EventExt field for a total of 10 bits. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] RM: Collected changesThomas Bogendoerfer14-270/+784
- EISA support for non PCI RMs (RM200 and RM400-xxx). The major part is the splitting of the EISA and onboard ISA of the RM200, which makes the EISA bus on the RM200 look like on other RMs. - 64bit kernel support - system type detection is now common for big and little endian - moved sniprom code to arch/mips/fw - added call_o32 function to arch/mips/fw/lib, which uses a private stack for calling prom functions - fix problem with ISA interrupts, which makes using PIT clockevent possible Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Alchemy: Au1210/Au1250 CPU supportManuel Lauss3-0/+13
This patch adds IDs for new Au1200 variants: Au1210 and Au1250. They are essentially identical to the Au1200 except for the Au1210 which has a different SoC-ID in the PRId register [bits 31:24]. The Au1250 is a "Au1200 V0.2". Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Eleminate local symbols from the symbol table.Ralf Baechle7-281/+282
These symbols appear in oprofile output, stacktraces and similar but only make the output harder to read. Many identical symbol names such as "both_aligned" were also being used in multiple source files making it impossible to see which file actually was meant. So let's get rid of them. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Fulong: don't reinitialize pci_probe_only to it's default value.Ralf Baechle1-3/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] BCM1480: Use constants instead of magic numbers in PCI code.Ralf Baechle2-4/+4
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] IP28 supportThomas Bogendoerfer5-6/+589
Add support for SGI IP28 machines (Indigo 2 with R10k CPUs) This work is mainly based on Peter Fuersts work. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Remove CONFIG_SIBYTE_PT{1120,1125,SWARM}Ralf Baechle45-59/+0
According to Broadcom the PT systems are production test systems which never reached customers so no need to keep the fragmentary support we currently have. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Use correct dma flushing in dma_cache_sync()Thomas Bogendoerfer1-1/+1
Not cache coherent R10k systems (like IP28) need to do real cache invalidates in dma_cache_sync(). Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] IP28: added cache barrier to assembly routinesThomas Bogendoerfer3-0/+16
IP28 needs special treatment to avoid speculative accesses. gcc takes care for .c code, but for assembly code we need to do it manually. This is taken from Peter Fuersts IP28 patches. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] TXx9 watchdog support for rbhma3100,rbhma4200,rbhma4500Atsushi Nemoto6-3/+177
This patch adds support for txx9wdt driver to rbhma3100, rbhma4200 and rbhma4500 platform. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Use real cache invalidateThomas Bogendoerfer1-2/+2
R10k non coherent machines need a real dma cache invalidate to get rid of speculative stores in cache. For other machines this promises a slight speedup. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] SMP: Call platform methods via ops structure.Ralf Baechle24-427/+620
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] Cleanup pcspeaker platform device registration.Ralf Baechle5-34/+29
Move registration into the actual platform code instead of making a desparate attempt at sharing the hand full of likes of code in pcspeaker.c. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] MT: Scheduler support for SMTRalf Baechle4-1/+50
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] tlbex.c: cleanup debug codeFranck Bui-Huu1-57/+26
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] tlbex.c: use __cacheline_aligned instead of __tlb_handler_align Franck Bui-Huu1-6/+3
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] tlbex.c: cleanup include filesFranck Bui-Huu1-6/+0
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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