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* x86, uv: update macros used by UV platformJack Steiner2008-06-02
| | | | | | | | | Update the UV address macros to better describe the fields of UV physical addresses. Improve comments in the header files. Add additional MMR definitions. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* i8259: fix final uglinessPavel Machek2008-06-02
| | | | | | | | | | | | Introduce IRQx_VECTOR on 32-bit, so that #ifdef noise is kept down. There should be no object code change. [ mingo@elte.hu: merged to x86/irq not x86/i8259 due to x86/irq having restructured the vector code into asm-x86/irq_vectors.h, which this patch touches. ] Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: rename the i8259_32/64.c leftovers to irqinit_32/64.cThomas Gleixner2008-05-24
| | | | | | | | | | The leftovers of the i8259 unification have nothing to do with i8259 at all. They contain interrupt init code and the i8259_xx name is just misleading now. Rename them to irqinit_32/64.c Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: make init_ISA_irqs() staticThomas Gleixner2008-05-24
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: i8259: cleanup codingstylePavel Machek2008-05-24
| | | | | | | Signed-off-by: Pavel Machek <pavel@suse.cz> Cc: macro@ds2.pg.gda.pl Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: i8259.c: remove trivial ifdefsPavel Machek2008-05-24
| | | | | | | | | Remove #ifdefs where the only difference is formatting of comments. Signed-off-by: Pavel Machek <pavel@suse.cz> Cc: macro@ds2.pg.gda.pl Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: i8259.c: remove #ifdefs around includesPavel Machek2008-05-24
| | | | | | | | | | Remove #ifdefs around includes; including too much should be always safe. Signed-off-by: Pavel Machek <pavel@suse.cz> Cc: macro@ds2.pg.gda.pl Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: automatical unification of i8259.cPavel Machek2008-05-24
| | | | | | | | | | | | | Make conversion of i8259 very mechanical -- i8259 was generated by diff -D, with too different parts left in i8259_32 and i8259_64.c. Only "by hand" changes were removal of #ifdef from middle of the comment (prevented compilation) and removal of one static to allow splitting into files. Of course, it will need some cleanups now, and those will follow. Signed-of-by: Pavel Machek <pavel@suse.cz>
* x86: irq_32 move 4kstacks code to one placeThomas Gleixner2008-05-12
| | | | | | | | | | Move the 4KSTACKS related code to one place. This allows to un#ifdef do_IRQ() and share the executed on stack for the stack overflow printk and the softirq call. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: janitor stack overflow warning patchThomas Gleixner2008-05-12
| | | | | | | | | | | Add KERN_WARNING to the printk as this could not be done in the original patch, which allegedly only moves code around. Un#ifdef do_IRQ. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* i386: Execute stack overflow warning on interrupt stack v2Andi Kleen2008-05-12
| | | | | | | | | | | | | | | | | | | | Previously the reporting printk would run on the process stack, which risks overflow an already low stack. Instead execute it on the interrupt stack. This makes it more likely for the printk to make it actually out. It adds one not taken test/branch more to the interrupt path when stack overflow checking is enabled. We could avoid that by duplicating more code, but that seemed not worth it. Based on an observation by Eric Sandeen. v2: Fix warnings in some configs Signed-off-by: Andi Kleen <andi@firstfloor.org> Cc: mingo@elte.hu Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: change FIRST_SYSTEM_VECTOR to a variable, fixAlan Mayer2008-05-12
| | | | | | | | | Fixes the build error introduced by my FIRST_SYSTEM_VECTOR patch Signed-off-by: Alan Mayer <ajm@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: change FIRST_SYSTEM_VECTOR to a variableAlan Mayer2008-05-12
| | | | | | | | | | | | The SGI UV system needs several more system vectors than a vanilla x86_64 system. Rather than burden the other archs with extra system vectors that they don't use, change FIRST_SYSTEM_VECTOR to a variable, so that it can be dynamic. Signed-off-by: Alan Mayer <ajm@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: move eisa_set_level_irq declaration to headerThomas Gleixner2008-05-12
| | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: declare setup_apic_routingThomas Gleixner2008-05-12
| | | | | | | | Global functions need a prototype. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: unify irq.hThomas Gleixner2008-05-12
| | | | | | | | Not much difference in those files. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: unify hwirq.hThomas Gleixner2008-05-12
| | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: unify apic interrupt function declarationsThomas Gleixner2008-05-12
| | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: move BUILD_IRQ macro magic to i8259_64.cThomas Gleixner2008-05-12
| | | | | | | | i8259_64.c is the only place which uses those macros. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: unify interrupt vector definesThomas Gleixner2008-05-12
| | | | | | | | | The interrupt vector defines are copied 4 times around with minimal differences. Move them all into asm-x86/irq_vectors.h Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: move common declarations to hw_irq.hThomas Gleixner2008-05-12
| | | | | | | | Move the common declarations from hw_irq_32/64 into hw_irq.h Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: resize NR_IRQS for large machinesAlan Mayer2008-05-12
| | | | | | | | | | | | | On machines with very large numbers of cpus, tables that are dimensioned by NR_IRQS get very large, especially the irq_desc table. They are also very sparsely used. When the cpu count is > MAX_IO_APICS, use MAX_IO_APICS to set NR_IRQS, otherwise use NR_CPUS. Signed-off-by: Alan Mayer <ajm@sgi.com> Reviewed-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* Linux 2.6.26-rc2v2.6.26-rc2Linus Torvalds2008-05-11
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* Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds2008-05-11
|\ | | | | | | | | | | | | | | | | | | | | | | | | * 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: i2c: Convert some more new-style drivers to use module aliasing i2c: Match dummy devices by type i2c-sibyte: Mark i2c_sibyte_add_bus() as static i2c-sibyte: Correct a comment about frequency i2c: Improve the functionality documentation i2c: Improve smbus-protocol documentation i2c-piix4: Blacklist two mainboards i2c-piix4: Increase the intitial delay for the ServerWorks CSB5 i2c-mpc: Compare to NO_IRQ instead of zero
| * i2c: Convert some more new-style drivers to use module aliasingJean Delvare2008-05-11
| | | | | | | | | | | | | | | | Update 3 more new-style i2c drivers to use standard module aliasing instead of the old driver_name/type driver matching scheme. These video drivers aren't used yet so converting them is trivial. Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * i2c: Match dummy devices by typeJean Delvare2008-05-11
| | | | | | | | | | | | | | | | | | | | | | | | As the old driver_name/type matching scheme is going away soon, change the dummy device mechanism to use the new matching scheme. This has the downside that dummy i2c clients can no longer choose their name, they'll all appear as "dummy" in sysfs and in log messages. I don't think it is a problem in practice though, as there is little reason to use these i2c clients to log messages. Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * i2c-sibyte: Mark i2c_sibyte_add_bus() as staticMaciej W. Rozycki2008-05-11
| | | | | | | | | | | | | | | | The i2c_sibyte_add_bus() function is not called, nor meant to, from outside, so mark it as static; fixing a sparse warning too. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * i2c-sibyte: Correct a comment about frequencyMaciej W. Rozycki2008-05-11
| | | | | | | | | | | | | | | | | | | | The frequency may have been once hardcoded to 100 kHz, but currently it is passed as an argument to i2c_sibyte_add_bus(), so update the comment to match code. While at it, reformat a nearby comment for consistency. No functional changes. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * i2c: Improve the functionality documentationJean Delvare2008-05-11
| | | | | | | | | | | | | | Attempt to make the documentation about the I2C/SMBus functionality checking API clearer. Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * i2c: Improve smbus-protocol documentationDavid Brownell2008-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Improve the smbus-protocol documentation file somewhat: - Use the names of the SMBus protocol operations (from the 2.0 specification), not made-up-for-Linux names. - Add the name of the call used to execute each operation ... and point out that there are mismatches, where functions execute different protocol operations than their names specify. The most confusing examples are that "Read Byte" isn't executed by i2c_smbus_read_byte(), and that "Write Byte" isn't executed by i2c_smbus_write_byte(). When coding, that's not as bad as it may seem; but that case would seem to be worth fixing. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * i2c-piix4: Blacklist two mainboardsJean Delvare2008-05-11
| | | | | | | | | | | | | | | | | | | | We had a report that running sensors-detect on a Sapphire AM2RD790 motherbord killed the CPU. While the exact cause is still unknown, I'd rather play it safe and prevent any access to the SMBus on that machine by not letting the i2c-piix4 driver attach to the SMBus host device on that machine. Also blacklist a similar board made by DFI. Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * i2c-piix4: Increase the intitial delay for the ServerWorks CSB5David Milburn2008-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Per the PIIX4 errata, there maybe a delay between setting the start bit in the Smbus Host Controller Register and the transaction actually starting. If the driver doesn't delay long enough, it may appear that the transaction is complete when actually it hasn't started, this may lead to bus collisions. While 1 ms appears to be enough for most chips, the ServerWorks CSB5 wants 2 ms. Signed-off-by: David Milburn <dmilburn@redhat.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
| * i2c-mpc: Compare to NO_IRQ instead of zeroJon Smirl2008-05-11
| | | | | | | | | | | | | | | | | | Alter the mpc i2c driver to use the NO_IRQ symbol instead of the constant zero when checking for valid interrupts. NO_IRQ=-1 on ppc and NO_IRQ=0 on powerpc so the checks against zero are not correct. Signed-off-by: Jon Smirl <jonsmirl@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* | Add new 'cond_resched_bkl()' helper functionLinus Torvalds2008-05-11
|/ | | | | | | | | | | | | | | | | | It acts exactly like a regular 'cond_resched()', but will not get optimized away when CONFIG_PREEMPT is set. Normal kernel code is already preemptable in the presense of CONFIG_PREEMPT, so cond_resched() is optimized away (see commit 02b67cc3ba36bdba351d6c3a00593f4ec550d9d3 "sched: do not do cond_resched() when CONFIG_PREEMPT"). But when wanting to conditionally reschedule while holding a lock, you need to use "cond_sched_lock(lock)", and the new function is the BKL equivalent of that. Also make fs/locks.c use it. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* usb-serial: Add ThinkOptics WavITBernhard Beck2008-05-11
| | | | | | | Add ThinkOptics WavIt to cp2101 device table Signed-off-by: Bernhard Beck <kernel@goodcoffee.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2008-05-11
|\ | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc: Fix debugger syscall restart interactions. sparc: Fix ptrace() detach. sparc32: Don't twiddle PT_DTRACE in exec. sparc video: remove open boot prom code
| * sparc: Fix debugger syscall restart interactions.David S. Miller2008-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | So, forever, we've had this ptrace_signal_deliver implementation which tries to handle all of the nasties that can occur when the debugger looks at a process about to take a signal. It's meant to address all of these issues inside of the kernel so that the debugger need not be mindful of such things. Problem is, this doesn't work. The idea was that we should do the syscall restart business first, so that the debugger captures that state. Otherwise, if the debugger for example saves the child's state, makes the child execute something else, then restores the saved state, we won't handle the syscall restart properly because we lose the "we're in a syscall" state. The code here worked for most cases, but if the debugger actually passes the signal through to the child unaltered, it's possible that we would do a syscall restart when we shouldn't have. In particular this breaks the case of debugging a process under a gdb which is being debugged by yet another gdb. gdb uses sigsuspend to wait for SIGCHLD of the inferior, but if gdb itself is being debugged by a top-level gdb we get a ptrace_stop(). The top-level gdb does a PTRACE_CONT with SIGCHLD to let the inferior gdb see the signal. But ptrace_signal_deliver() assumed the debugger would cancel out the signal and therefore did a syscall restart, because the return error was ERESTARTNOHAND. Fix this by simply making ptrace_signal_deliver() a nop, and providing a way for the debugger to control system call restarting properly: 1) Report a "in syscall" software bit in regs->{tstate,psr}. It is set early on in trap entry to a system call and is fully visible to the debugger via ptrace() and regsets. 2) Test this bit right before doing a syscall restart. We have to do a final recheck right after get_signal_to_deliver() in case the debugger cleared the bit during ptrace_stop(). 3) Clear the bit in trap return so we don't accidently try to set that bit in the real register. As a result we also get a ptrace_{is,clear}_syscall() for sparc32 just like sparc64 has. M68K has this same exact bug, and is now the only other user of the ptrace_signal_deliver hook. It needs to be fixed in the same exact way as sparc. Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: Fix ptrace() detach.David S. Miller2008-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | Forever we had a PTRACE_SUNOS_DETACH which was unconditionally recognized, regardless of the personality of the process. Unfortunately, this value is what ended up in the GLIBC sys/ptrace.h header file on sparc as PTRACE_DETACH and PT_DETACH. So continue to recognize this old value. Luckily, it doesn't conflict with anything we actually care about. Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc32: Don't twiddle PT_DTRACE in exec.David S. Miller2008-05-10
| | | | | | | | | | | | That bit isn't used on this platform. Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc video: remove open boot prom codeRobert Reif2008-05-09
| | | | | | | | | | | | | | | | | | Replace remaining open boot prom code with of. Boot tested on sparc32 and compile tested on sparc64. Signed-off-by: Robert Reif <reif@earthlink.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'upstream-linus' of ↵Linus Torvalds2008-05-11
|\ \ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: [libata] revert new check-ready Status register logic
| * | [libata] revert new check-ready Status register logicJeff Garzik2008-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This behavior differs across multiple controllers, so we cannot use common logic for all controllers. Revert back to the basic common behavior, and specific drivers will be updated from here to take into account the unusual Status return values. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | | Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2008-05-11
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 5033/1: Unbreak corgi_ssp by registering ssp drivers earlier. [ARM] Orion: clean up addr-map.c after window setting code purge [ARM] Orion: pass proper t_clk into mv643xx_eth [ARM] Orion: use mv643xx_eth driver mbus window handling [ARM] pxa: Fix RCSR handling [ARM] lubbock: fix compilation [ARM] 5032/1: Added cpufreq support for pxa27x CPU [ARM] 5031/1: Indentation correction in cpu-pxa.c. [ARM] 5028/1: pxafb: fix broken "backward compatibility way" in framebuffer [ARM] 4882/2: Correction for S3C2410 clkout generation [ARM] 5027/1: Fixed random memory corruption on pxa suspend cycle. [ARM] 5024/1: Fix some minor clk issues in the MMCI PL18x driver [ARM] 5023/1: Fix broken gpio interrupts on ep93xx ns9xxx: fix sparse warning ns9xxx: check for irq lockups ns9xxx: fix handle_prio_irq to unmask irqs with lower priority
| * \ \ Merge branch 'for-rmk' of ↵Russell King2008-05-09
| |\ \ \ | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/nico/orion into fixes
| | * | | [ARM] Orion: clean up addr-map.c after window setting code purgeLennert Buytenhek2008-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch cleans up Orion's addr-map.c a bit after all peripheral window programming code has been moved out into the relevant drivers. Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Reviewed-by: Tzachi Perelstein <tzachi@marvell.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Nicolas Pitre <nico@marvell.com>
| | * | | [ARM] Orion: pass proper t_clk into mv643xx_ethLennert Buytenhek2008-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pass the Orion TCLK tick rate into the ethernet driver. Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: Nicolas Pitre <nico@marvell.com>
| | * | | [ARM] Orion: use mv643xx_eth driver mbus window handlingLennert Buytenhek2008-05-09
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the Orion 5x platform code use the mbus window handling code that's in the mv643xx_eth driver, instead of programming the GigE block's mbus window registers by hand. Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Reviewed-by: Tzachi Perelstein <tzachi@marvell.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Nicolas Pitre <nico@marvell.com>
| * | | [ARM] 5033/1: Unbreak corgi_ssp by registering ssp drivers earlier.Dmitry Baryshkov2008-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A lot of stuff in spitz/akita/etc. depends on corgi_ssp to be initialised early. However corgi_ssp initialisation fails, because at that time pxa*-ssp devices don't have drivers. Move ssp earlier in the makefile so they are registered before corgi-ssp. Also move sleep/suspend and cpu-freq to more logical places Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | [ARM] pxa: Fix RCSR handlingRussell King2008-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Related to d3930614e68bdf83a120d904c039a64e9f75dba1. RCSR is only present on PXA2xx CPUs, not on PXA3xx CPUs. Therefore, we should not be unconditionally writing to RCSR from generic code. Since we now clear the RCSR status from the SoC specific PXA PM code and before reset in the arch_reset() function, the duplication in the corgi, poodle, spitz and tosa code can be removed. Acked-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | [ARM] lubbock: fix compilationAlexey Dobriyan2008-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | arch/arm/mach-pxa/lubbock.c:399: error: expected '}' before ';' token Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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