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2011-05-10MIPS: IP22: Fix GCC 4.6.0 build errorRalf Baechle
CC arch/mips/sgi-ip22/ip22-platform.o arch/mips/sgi-ip22/ip22-platform.c: In function 'sgiseeq_devinit': arch/mips/sgi-ip22/ip22-platform.c:135:15: error: variable 'tmp' set but not used [-Werror=unused-but-set-variable] cc1: all warnings being treated as errors While at it rename the variable to pbdma for readability; there is a local variable tmp of different type being used in two nested blocks. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-05-10MIPS: IP22: Fix GCC 4.6.0 build errorRalf Baechle
CC arch/mips/sgi-ip22/ip22-time.o arch/mips/sgi-ip22/ip22-time.c: In function 'dosample': arch/mips/sgi-ip22/ip22-time.c:35:10: error: variable 'lsb' set but not used [-Werror=unused-but-set-variable] cc1: all warnings being treated as errors Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-03-29MIPS: Convert the irq functions to the new namesThomas Gleixner
Scripted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-25MIPS: IP22/IP28: Convert to new irq_chip functionsThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2202/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: IP22, IP28: Migrate to new platform makefile style.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30MIPS: die() does not call die notifier chainYury Polyanskiy
The MIPS implementation of die() forgets to call notify_die() and thus notifiers registered via register_die_notifier() are not called. This results in kgdb not being activated on exceptions. The only subtlety is that notify_die declares its regs argument w/o const, so the const had to be removed from mips die() as well. [Ralf: Fixed build error for SGI IP22 and IP28 platforms.] Signed-off-by: Yury Polyanskiy <ypolyans@princeton.edu> Cc: linux-mips@linux-mips.org Patchworks: http://patchwork.linux-mips.org/patch/1142/ Acked-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> ---
2009-12-17MIPS: Move several variables from .bss to .init.dataDmitri Vorobiev
Several static uninitialized variables are used in the scope of __init functions but are themselves not marked as __initdata. This patch is to put those variables to where they belong and to reduce the memory footprint a little bit. Also, a couple of lines with spaces instead of tabs were fixed. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/698/ Acked-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-12-17MIPS: Tracing: Add IRQENTRY_EXIT section for MIPSWu Zhangjin
This patch add a new section for MIPS to record the block of the hardirq handling for function graph tracer(print_graph_irq) via adding the __irq_entry annotation to the the entrypoints of the hardirqs(the block with irq_enter()...irq_exit()). Thanks goes to Steven & Frederic Weisbecker for their feedbacks. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Nicholas Mc Guire <der.herr@hofr.at> Cc: zhangfx@lemote.com Cc: Wu Zhangjin <wuzhangjin@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Reviewed-by: Frederic Weisbecker <fweisbec@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/676/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-09-17MIPS: IP22, IP28: Build with -WerrorRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-20MIPS: IP22: Fix hang in power button interrupt handlerRalf Baechle
The hang was caused by the use of disable_irq() from the interrupt handler itself. Fixed by the use of disable_irq_nosync(). The issue was triggered by: commit 3aa551c9b4c40018f0e261a178e3d25478dc04a9 Author: Thomas Gleixner <tglx@linutronix.de> Date: Mon Mar 23 18:28:15 2009 +0100 genirq: add threaded interrupt handler support Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-15irq: update all arches for new irq_desc, fixMike Travis
Impact: fix build errors Since the SPARSE IRQS changes redefined how the kstat irqs are organized, arch's must use the new accessor function: kstat_incr_irqs_this_cpu(irq, DESC); If CONFIG_SPARSE_IRQS is set, then DESC is a pointer to the irq_desc which has a pointer to the kstat_irqs. If not, then the .irqs field of struct kernel_stat is used instead. Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-27MIPS: IP22: ip22-int.c header file weeding.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27MIPS: IP22: Small cleanupsDmitri Vorobiev
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>
2008-10-15MIPS: IP22/28: Switch over to RTC class driverThomas Bogendoerfer
This patchset removes some dead code and creates a platform device for the RTC class driver. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-09-08[MIPS] IP22: Fix detection of second HPC3 on Challenge SThomas Bogendoerfer
The second HPC3 could be found only on Guiness systems (Challenge-S), but not on fullhouse (Indigo2) systems. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-07-30[MIPS] kgdb: Remove existing implementationJason Wessel
This patch explicitly removes the kgdb implementation, for mips which is intended to be followed by a patch that adds a kgdb implementation for MIPS that makes use of the kgdb core in the kernel. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-07-20[MIPS] mips/sgi-ip22/ip28-berr.c: fix the buildAdrian Bunk
Commit 3e6ea3b0d7a93550a93a265e732413d3a5aaf0d2 (linux-mips.org) / 52f4f6bbcff5510f662a002ec1219660ea25af62 (kernel.org) ([MIPS] Use kernel-supplied ARRAY_SIZE() macro.) causes the following compile error: <-- snip --> ... CC arch/mips/sgi-ip22/ip28-berr.o /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/mips/sgi-ip22/ip28-berr.c: In function 'ip28_be_interrupt': /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/mips/sgi-ip22/ip28-berr.c:415: error: subscripted value is neither array nor pointer /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/mips/sgi-ip22/ip28-berr.c:415: error: subscripted value is neither array nor pointer /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/mips/sgi-ip22/ip28-berr.c:415: warning: type defaults to 'int' in declaration of 'type name' /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/mips/sgi-ip22/ip28-berr.c:424: error: subscripted value is neither array nor pointer /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/mips/sgi-ip22/ip28-berr.c:424: error: subscripted value is neither array nor pointer /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/mips/sgi-ip22/ip28-berr.c:424: warning: type defaults to 'int' in declaration of 'type name' make[2]: *** [arch/mips/sgi-ip22/ip28-berr.o] Error 1 <-- snip --> Using ARRAY_SIZE in these places in arch/mips/sgi-ip22/ip28-berr.c was bogus, and therefore gets reverted by this patch. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-07-20[MIPS] IP22: Use common SGI button driverThomas Bogendoerfer
Use the Indy/O2 button driver. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-07-15[MIPS] IP22: Add platform device for Indy volume buttonsThomas Bogendoerfer
Create platform device for Indy volume buttons and remove button handling from ip22-reset.c Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-07-15[MIPS] IP22/28: Add platform devices for HAL2Thomas Bogendoerfer
Create platform devices for hal2 and add option for selecting HAL2 alsa driver. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-07-15[MIPS] IP28: switch to "normal" mode after PROM no longer neededThomas Bogendoerfer
SGI-IP28 is running in so called slow mode, when kernel is started from the PROM. PROM calls must be done in slow mode otherwise the PROM will issue an error. To get better memory performance we now switch to normal mode, when the PROM is no longer needed. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-07-15[MIPS] Use kernel-supplied ARRAY_SIZE() macro.Robert P. J. Day
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] IP28 supportThomas Bogendoerfer
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>
2007-11-29IP22ZILOG: fix lockup and sysrqThomas Bogendoerfer
- fix lockup when switching from early console to real console - make sysrq reliable - fix panic, if sysrq is issued before console is opened Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Acked-by: Ralf Baechle <ralf@linux-mips.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-26[MIPS] IP22: Fix broken eeprom access by using __raw_readl/__raw_writelThomas Bogendoerfer
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-11-26[MIPS] IP22: Fix broken EISA interrupt setup by switching to generic i8259Thomas Bogendoerfer
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-17[MIPS] IP22: Fix hang due to messing with timer interrupt handlerThomas Bogendoerfer
As IP22 is now using do_IRQ for timer interrupt, don't mess with interrupt handler any longer Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-16[MIPS] IP22: Enable -Werror.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-16[MIPS] IP22: Complain if requesting the front panel irq failed.Ralf Baechle
This fixes the warning: CC arch/mips/sgi-ip22/ip22-reset.o arch/mips/sgi-ip22/ip22-reset.c: In function 'reboot_setup': arch/mips/sgi-ip22/ip22-reset.c:239: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Fix "no space between function name and open parenthesis" warnings.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] i8253 PIT clocksource and clockevent driversRalf Baechle
Derived from the i386 variant with a few x86 complexities chopped off. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Implement clockevents for R4000-style cp0 count/compare interruptRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Consolidate all variants of MIPS cp0 timer interrupt handlers.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Switch from to_tm to rtc_time_to_tmRalf Baechle
This replaces the MIPS-specific to_tm function with the generic rtc_time_to_tm function. The big difference between the two functions is that rtc_time_to_tm uses epoch 70 while to_tm uses 1970, so the result of rtc_time_to_tm needs to be fixed up. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Deforest the function pointer jungle in the time code.Ralf Baechle
Hard to follow who is pointing what to where and why so it's simply getting in the way of the time code renovation. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-11[MIPS] IP22: fix wrong argument orderThomas Bogendoerfer
Fix wrong argument order; this is just a minimal fix for the half baked redadb/writeb() conversion. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-11[MIPS] IP22: Fix wrong check for second HPCThomas Bogendoerfer
Wrong check for the second hpc on fullhouse machines, caused DBEs on SGI Indys Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27[MIPS] IP22: Export sgi_gfxaddr for use by the Newport console driver.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27[MIPS] IP22: Fix modpost warning.Ralf Baechle
MODPOST vmlinux.o WARNING: vmlinux.o(.text+0xc70): Section mismatch: reference to .init.text:add_memory_region (between 'probe_memory' and 'enable_local0_irq') Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-10[MIPS] Transform old-style macros to newer "__noreturn"Robert P. J. Day
Convert old/obsolete NORET_TYPE and ATTRIB_NORET macros to use the newer standard of "__noreturn" as defined in compiler-gcc.h. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-05-11Convert SGI IP22 and specific drivers to platform_device.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-04-27[MIPS] IP22: Get rid of volatile in IP22 core code.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-19[MIPS] Misc fixes for plat_irq_dispatch functionsThiemo Seufer
o adds missing ST0_IM masks, which caused the logging of valid interrupts as spurious o stops pnx8550 to log every interrupt as spurious o adds cause register masks for ip22/ip32, which caused handling of masked interrupts o removes some superfluous parentheses in the SNI interrupt code Signed-Off-By: Thiemo Seufer <ths@networkno.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-26[MIPS] Kill redundant EXTRA_AFLAGSAtsushi Nemoto
Many Makefiles in arch/mips have EXTRA_AFLAGS := $(CFLAGS) line. This is redundant while AFLAGS contains $(cflags-y) and any options only listed in CFLAGS (not in cflags-y) should be unnecessary for asm sources. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] use name instead of typename for each irq_chipAtsushi Nemoto
The "typename" field was obsoleted by the "name" field. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] prom_free_prom_memory cleanupAtsushi Nemoto
Current prom_free_prom_memory() implementations are almost same as free_init_pages(), or no-op. Make free_init_pages() extern (again) and make prom_free_prom_memory() use it. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Define MIPS_CPU_IRQ_BASE in generic headerAtsushi Nemoto
The irq_base for {mips,rm7k,rm9k}_cpu_irq_init() are constant on all platforms and are same value on most platforms (0 or 16, depends on CONFIG_I8259). Define them in asm-mips/mach-generic/irq.h and make them customizable. This will save a few cycle on each CPU interrupt. A good side effect is removing some dependencies to MALTA in generic SMTC code. Although MIPS_CPU_IRQ_BASE is customizable, this patch changes irq mappings on DDB5477, EMMA2RH and MIPS_SIM, since really customizing them might cause some header dependency problem and there seems no good reason to customize it. So currently only VR41XX is using custom MIPS_CPU_IRQ_BASE value, which is 0 regardless of CONFIG_I8259. Testing this patch on those platforms is greatly appreciated. Thank you. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-12-06[MIPS] Compile __do_IRQ() when really neededFranck Bui-Huu
__do_IRQ() is needed only by irq handlers that can't use default handlers defined in kernel/irq/chip.c. For others platforms there's no need to compile this function since it won't be used. For those platforms this patch defines GENERIC_HARDIRQS_NO__DO_IRQ symbol which is used exactly for this purpose. Futhermore for platforms which do not use __do_IRQ(), end() method which is part of the 'irq_chip' structure is not used. This patch simply removes this method in this case. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-11-30[MIPS] use generic_handle_irq, handle_level_irq, handle_percpu_irqAtsushi Nemoto
Further incorporation of generic irq framework. Replacing __do_IRQ() by proper flow handler would make the irq handling path a bit simpler and faster. * use generic_handle_irq() instead of __do_IRQ(). * use handle_level_irq for obvious level-type irq chips. * use handle_percpu_irq for irqs marked as IRQ_PER_CPU. * setup .eoi routine for irq chips possibly used with handle_percpu_irq. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-11-30[MIPS] IRQ cleanupsAtsushi Nemoto
This is a big irq cleanup patch. * Use set_irq_chip() to register irq_chip. * Initialize .mask, .unmask, .mask_ack field. Functions for these method are already exist in most case. * Do not initialize .startup, .shutdown, .enable, .disable fields if default routines provided by irq_chip_set_defaults() were suitable. * Remove redundant irq_desc initializations. * Remove unnecessary local_irq_save/local_irq_restore, spin_lock. With this cleanup, it would be easy to switch to slightly lightwait irq flow handlers (handle_level_irq(), etc.) instead of __do_IRQ(). Though whole this patch is quite large, changes in each irq_chip are not quite simple. Please review and test on your platform. Thanks. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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