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* [PATCH] Add irq flag to disable balancing for an interruptThomas Gleixner2007-02-16
| | | | | | | | | | | | | | | Add a flag so we can prevent the irq balancing of an interrupt. Move the bits, so we have room for more :) Necessary for the ability to setup clocksources more flexible (e.g. use the different HPET channels per CPU) Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: john stultz <johnstul@us.ibm.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] vmi-versus-hrtimersAndrew Morton2007-02-16
| | | | | | | | | | | | | | | | | | arch/i386/kernel/built-in.o: In function `vmi_stop_hz_timer': : undefined reference to `next_timer_interrupt' If CONFIG_NO_HZ, next_timer_interrupt() doesn't exist (and presumably doesn't make sense). Perhaps VMI shouildn't be playing with timer internals at this level. Cc: Zachary Amsden <zach@vmware.com> Cc: Andi Kleen <ak@suse.de> Cc: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] correct CONFIG_GIGASET_M101 Makefile entryAdrian Bunk2007-02-16
| | | | | | | | | | | | Advanced Mathematics, lesson 1: 101 != 105 ;-) Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] uml: fix 2.6.20 hangJeff Dike2007-02-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A previous cleanup misused need_poll, which had a fairly broken interface. It implemented a growable array, changing the used elements count itself, but leaving it up to the caller to fill in the actual elements, including the entire array if the array had to be reallocated. This worked because the previous users were switching between two such structures, and the elements were copied from the inactive array to the active array after making sure the active array had enough room. maybe_sigio_broken was made to use need_poll, but it was operating on a single array, so when the buffer was reallocated, the previous contents were lost. This patch makes need_poll implement more sane semantics. It merely assures that the array is of the proper size and that the contents are preserved. It is up to the caller to adjust the used elements count and to ensure that the proper elements are resent. This manifested itself as a hang in 2.6.20 as the uninitialized buffer convinced UML that one of its own file descriptors didn't support SIGIO and needed to be watched by poll in a separate thread. The result was an interrupt flood as control traffic over this descriptor sparked interrupts, which resulted in more control traffic, ad nauseum. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] __page_symlink retry loop error code fixDmitriy Monakhov2007-02-16
| | | | | | | | | | If prepare_write or commit_write return AOP_TRUNCATED_PAGE we jump to "retry" label and than if find_or_create_page() failed function return incorrect error code. Signed-off-by: Dmitriy Monakhov <dmonakhov@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] pci_iomap_regions() error handling fixFrederik Deweerdt2007-02-16
| | | | | | | | | | | | | | | | | | | | | | | | It appears that the pcim_iomap_regions() function doesn't get the error handling right. It BUGs early at boot with a backtrace along the lines of: ahci_init pci_register_driver driver_register [...] ahci_init_one pcim_iomap_region pcim_iounmap The following patch allows me to boot. Only the if(mask..) continue; part fixes the problem actually, the gotos where changed so that we don't try to unmap something we couldn't map anyway. Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Tejun Heo <htejun@gmail.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] GPIO core documentationDavid Brownell2007-02-16
| | | | | | | | | Small updates to the GPIO documentation, addressing feedback and fixing a few spelling errors. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sata_vsc: use default cache line size if non-zeroNate Dailey2007-02-15
| | | | | | | | | | | | | | | This modifies drivers/ata/sata_vsc.c to only set the cache line size to 0x80 if the default value is zero. Apparently zero isn't allowed due to a bug in the chip, but I've found performance is much better with the (non-zero) default instead of 0x80. [note1: "default" means BIOS-programmed value, in this context -jgarzik] [note2: superfluous braces were removed from the patch -jg] Signed-off-by: Nate Dailey <nate.dailey@stratus.com> Signed-off-by: Jeremy Higdon <jeremy@sgi.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* sata_nv: handle SError status indicationRobert Hancock2007-02-15
| | | | | | | | | ADMA-capable controllers provide a bit in the status register that appears to indicate that the controller detected an SError condition. Update sata_nv to detect this and trigger error handling in order to handle the fault. Signed-off-by: Robert Hancock <hancockr@shaw.ca> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* add delay around sl82c105_reset_engine callsOlaf Hering2007-02-15
| | | | | | | | | | | The hald media changed polling does really confuse things. Noone knows why the delays are needed, but they give us access to the CD. An udelay(50) will give reliable access to the drive, but there is still one (or more) EH reset. The drive works without EH resets with udelay(100). Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* ATA convert GSI to irq on ia64Zhang, Yanmin2007-02-15
| | | | | | | | | | | If an ATA drive uses legacy mode, ata driver will choose 14 and 15 as the fixed irq number. On ia64 platform, such numbers are GSI and should be converted to irq vector. Below patch against kernel 2.6.20 fixes it. Signed-off-by: Zhang Yanmin <yanmin.zhang@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* libata: clear TF before IDENTIFYingTejun Heo2007-02-15
| | | | | | | | | | | | | | Some devices chock if Feature is not clear when IDENTIFY is issued. Set ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE for IDENTIFY such that whole TF is cleared when reading ID data. Kudos to Art Haas for testing various futile patches over several months and Mark Lord for pointing out the fix. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Art Haas <ahaas@airmail.net> Cc: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* libata: Add a host flag to indicate lack of IORDY capabilityAlan Cox2007-02-15
| | | | | | | | | | | This is the first preparation to doing the !IORDY cases properly. Further diffs will then add the needed logic to do it right. Signed-off-by: Alan Cox <alan@redhat.com> Cc: Jeff Garzik <jeff@garzik.org> Cc: Tejun Heo <htejun@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* libata: fix drive side 80c cable check, take 3Tejun Heo2007-02-15
| | | | | | | | | | | The 80c wire bit is bit 13, not 14. Bit 14 is always 1 if word93 is implemented. This increases the chance of incorrect wire detection especially because host side cable detection is often unreliable and we sometimes soley depend on drive side cable detection. Fix the test and add word93 validity check. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* sata_promise: new EH conversion for 20619 chips, take 2Mikael Pettersson2007-02-15
| | | | | | | | | | | | | | | | | | | This patch updates the sata_promise driver to use new-style libata error handling for 20619 (TX4000) chips. sata_promise already uses new EH for the other chips it supports, so the patch is quite simple: * remove ->phy_reset and ->eng_timeout ops from pdc_pata_ops, and instead bind ->freeze, ->thaw, ->error_handler, and ->post_internal_cmd to existing new EH functions * drop ATA_FLAG_SRST from board_20619's flags * remove now unused pdc_pata_phy_reset() and pdc_eng_timeout() Tested on a TX4000 with both modern working disks and old/quirky disks. Also used a CD-RW drive to test reading and writing CDs. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* sata_promise: fix missing PATA cable detectionMikael Pettersson2007-02-15
| | | | | | | | This patch fixes an oversight which caused sata_promise to not perform cable detection on the TX2plus chips' PATA ports. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds2007-02-15
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: (35 commits) sh: rts7751r2d board updates. sh: Kill off dead bigsur and ec3104 boards. sh: Fixup r7780rp pata_platform for devres conversion. sh: Revert TLB miss fast-path changes that broke PTEA parts. sh: Compile fix for heartbeat consolidation. sh: heartbeat consolidation for banked LEDs. sh: define dma noncoherent API functions. sh: Missing flush_dcache_all() proto in cacheflush.h. sh: Kill dead/unused ISA code from __ioremap(). sh: Add cpu-features header to asm/Kbuild. sh: Move __KERNEL__ up in asm/page.h. sh: Fix syscall numbering breakage. sh: dcache write-back for R7780RP PIO. sh: Switch to local TLB flush variants in additional callsites. sh: Local TLB flushing variants for SMP prep. sh: Fixup cpu_data references for the non-boot CPUs. sh: Use a per-cpu ASID cache. sh: add SH_CLK_MD Kconfig default. sh: Fixup SHMIN INTC register definitions. sh: SH-DMAC compile fixes ...
| * sh: rts7751r2d board updates.Paul Mundt2007-02-15
| | | | | | | | | | | | | | | | This tidies up some of the rts7751r2d mess and gets it booting again. Update the defconfig, too. Signed-off-by: Masayuki Hosokawa <hosokawa@ace-jp.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Kill off dead bigsur and ec3104 boards.Paul Mundt2007-02-14
| | | | | | | | | | | | | | | | Neither of these have had any maintenance in years, and there's no interest in keeping them straggling along. These have already been slated for removal some time, so finally just get rid of them. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fixup r7780rp pata_platform for devres conversion.Paul Mundt2007-02-14
| | | | | | | | | | | | | | | | | | | | Tidy up the R7780RP I/O mapping routines and switch the pata_platform resources to IORESOURCE_MEM types, killing off the useless port->addr conversion. This fixes up R7780RP to boot after the recent devres conversion. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Revert TLB miss fast-path changes that broke PTEA parts.Paul Mundt2007-02-14
| | | | | | | | | | | | | | | | This ended up causing problems for older parts (particularly ones using PTEA). Revert this for now, it can be added back in once it's had some more testing. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Compile fix for heartbeat consolidation.Paul Mundt2007-02-13
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: heartbeat consolidation for banked LEDs.Paul Mundt2007-02-13
| | | | | | | | | | | | | | | | | | | | | | This consolidates the various board heartbeat LED implementations, used for strobing the load average across a LED bank. Those boards not implementing a full bank can hook in via the LED class. We leave the compat hook in the machvec for now until those non-banked boards are able to migrate to the drivers/leds. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: define dma noncoherent API functions.Paul Mundt2007-02-12
| | | | | | | | | | | | sh was missing these, too. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Missing flush_dcache_all() proto in cacheflush.h.Paul Mundt2007-02-12
| | | | | | | | | | | | Some boards need this, so provide a definition. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Kill dead/unused ISA code from __ioremap().Paul Mundt2007-02-12
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Add cpu-features header to asm/Kbuild.Paul Mundt2007-02-12
| | | | | | | | | | | | | | | | This is used by the libc for parsing CPU capability flags passed via the ELF auxvt, needed for run-time selection of atomic opcodes amongst other things. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Move __KERNEL__ up in asm/page.h.Paul Mundt2007-02-12
| | | | | | | | | | | | | | This was breaking the uClibc build, which triggered the bogus page size error. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fix syscall numbering breakage.Paul Mundt2007-02-12
| | | | | | | | | | | | We accidentally broke the inotify syscalls, fix those up again. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: dcache write-back for R7780RP PIO.Paul Mundt2007-02-12
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Switch to local TLB flush variants in additional callsites.Paul Mundt2007-02-12
| | | | | | | | | | | | | | Convert some of the global flush users over to using the local variants that don't need to use the global routines. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Local TLB flushing variants for SMP prep.Paul Mundt2007-02-12
| | | | | | | | | | | | | | Rename the existing flush routines to local_ variants for use by the IPI-backed global flush routines on SMP. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fixup cpu_data references for the non-boot CPUs.Paul Mundt2007-02-12
| | | | | | | | | | | | | | There are a lot of bogus cpu_data-> references that only end up working for the boot CPU, convert these to current_cpu_data to fixup SMP. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Use a per-cpu ASID cache.Paul Mundt2007-02-12
| | | | | | | | | | | | | | | | Previously this was implemented using a global cache, cache this per-CPU instead and bump up the number of context IDs to match NR_CPUS. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: add SH_CLK_MD Kconfig default.Andrew Morton2007-02-12
| | | | | | | | | | | | | | | | This option needs a default - otherwise `make allmodconfig' gets stuck in an infinite loop. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fixup SHMIN INTC register definitions.Nobuhiro Iwamatsu2007-02-12
| | | | | | | | | | Signed-off-by: Nobuhiro Iwamatsu <hemamu@t-base.ne.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: SH-DMAC compile fixesManuel Lauss2007-02-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch does the following: - remove the make_ipr_irq stuff from dma-sh.c and replace it with a simple channel<->irq mapping table. - add DMTEx_IRQ constants for sh4 cpus - fix sh7751 DMAE irq number The SH7780 uses the same IRQs for DMA as other SH4 types, so I put the constants on top of the dma.h file. Other CPU types need to #define their own DMTEx_IRQ contants in their appropriate header. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: add SH7760 IPR IRQ dataManuel Lauss2007-02-12
| | | | | | | | | | | | | | Add SH7760 IPR IRQ data; makes 2.6.20-rc bootable again. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fix handle_BUG() compile error.Nobuhiro Iwamatsu2007-02-12
| | | | | | | | | | | | | | | | handle_BUG() uses TRAPA_BUG_OPCODE which is only defined for CONFIG_BUG, make sure it's not built when CONFIG_BUG=n. Signed-off-by: Nobuhiro Iwamatsu <hemamu@t-base.ne.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Don't set reserved _PAGE_WT bit on SH-3.Paul Mundt2007-02-12
| | | | | | | | | | | | | | | | Only SH-4 needs to set _PAGE_WT when using write-through caching, don't attempt to set it on SH-3 where it ends up being a reserved bit. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Lazy dcache writeback optimizations.Paul Mundt2007-02-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This converts the lazy dcache handling to the model described in Documentation/cachetlb.txt and drops the ptep_get_and_clear() hacks used for the aliasing dcaches on SH-4 and SH7705 in 32kB mode. As a bonus, this slightly cuts down on the cache flushing frequency. With that and the PTEA handling out of the way, the update_mmu_cache() implementations can be consolidated, and we no longer have to worry about which configuration the cache is in for the SH7705 case. And finally, explicitly disable the lazy writeback on SMP (SH-4A). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: More tidying for large base pages.Paul Mundt2007-02-12
| | | | | | | | | | | | | | | | There were a few more things that needed fixing up, namely THREAD_SIZE and the TLB miss handler where certain PTRS_PER_PGD == PTRS_PER_PTE assumptions were being made. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Solution Engine 770x IPR irq setup.Nobuhiro Iwamatsu2007-02-12
| | | | | | | | | | | | | | Fixups for external IPR IRQs for the SE770x FPGA. Signed-off-by: Nobuhiro Iwamatsu <hemamu@t-base.ne.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Solution Engine 7750's defconfig update.Nobuhiro Iwamatsu2007-02-12
| | | | | | | | | | | | | | Update se7750_defconfig. Signed-off-by: Nobuhiro Iwamatsu <hemamu@t-base.ne.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: shmin updates.Takashi YOSHII2007-02-12
| | | | | | | | | | | | | | | | This fixes up shmin (and SH7706/SH7708) IPR support for some of the recent API changes. Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fixup R7780RP iVDR clock enable.Paul Mundt2007-02-12
| | | | | | | | | | | | | | | | | | The iVDR clock enable bit happens to actually reside in a rather different place than what is documented, so fix it up accordingly. This fixes up SATA boot for some of the R7780RP boards that didn't default-enable the clock in the loader. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: allow earlyprintk baud rate to be set via command lineJamie Lenehan2007-02-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows the baud rate for earlyprintk for sh4 without the standard BIOS to be set via the command line. This uses the same format as i386 and x86_64, which is: earlyprintk=serial,ttySC1,38400 The second parameter (ttySC1 above) is usually the console device name or the io address of the serial port. I allow that to be specified but ignore it in order to keep the format the same as i386/x86_64. Signed-off-by: Jamie Lenehan <lenehan@twibble.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: syscall 300 should be __NR_fstatat64.SUGIOKA Toshinobu2007-02-12
| | | | | | | | | | | | | | | | | | | | | | | | syscall number 300 fails while testing with latest LTP (ltp-full-20061121.tgz) on sh. sys_fstatat64 is called on syscall 300 (see arch/sh/kernel/syscalls.S), and __ARCH_WANT_STAT64 is defined in include/asm-sh/unistd.h, so following patch seems correct. Signed-off-by: SUGIOKA Toshinobu <sugioka@itonet.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: sh7619 / sh7206 IPR initialize updateYoshinori Sato2007-02-12
| | | | | | | | | | | | | | IPR initialize proceduere update. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Update SH-2 to use the debug trap jump table.Yoshinori Sato2007-02-12
| | | | | | | | | | Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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