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2005-07-27[PATCH] s390: external call performanceHeiko Carstens
The kernel uses the SIGP external call order code to signal other CPUs. When running with dedicated CPUs external calls don't get delivered immediately but within a fixed polling invervall. This can lead to delays where the system appears to do nothing. Replace the SIGP external call order with the SIGP emergency call order since this one gets delivered immediately. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] s390: atomic64 inline functionsHeiko Carstens
The atomic64 primitives are supposed to have 64-bit parameters instead of int. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] s390: find_next_{zero}_bit fixesMartin Schwidefsky
The find_next_{zero}_bit primitives on s390* should never return a bit number bigger then the bit field size. In the case of a bitfield that doesn't end on a word boundary, an offset that makes the search start at the last word of the bit field and the last word doesn't contain any zero/one bits the search is continued with a call to find_first_bit with a negative size. The search normally ends pretty quickly because the words following the bit field contain a mix of zeros and ones. But the bit number that is returned in this case is too big. To fix this and additional if to check for this case is needed. To make the code easier to read I removed the assembler parts from the find_next_{zero}_bit functions, the C-ified code is as good. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] s390: spin lock retryMartin Schwidefsky
Split spin lock and r/w lock implementation into a single try which is done inline and an out of line function that repeatedly tries to get the lock before doing the cpu_relax(). Add a system control to set the number of retries before a cpu is yielded. The reason for the spin lock retry is that the diagnose 0x44 that is used to give up the virtual cpu is quite expensive. For spin locks that are held only for a short period of time the costs of the diagnoses outweights the savings for spin locks that are held for a longer timer. The default retry count is 1000. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] v850: Define L1_CACHE_SHIFT and L1_CACHE_SHIFT_MAXMiles Bader
Signed-off-by: Miles Bader <miles@gnu.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] v850: Update PCI supportMiles Bader
These changes are untested (I no longer have the hardware). Signed-off-by: Miles Bader <miles@gnu.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] v850: Add pte_fileMiles Bader
Signed-off-by: Miles Bader <miles@gnu.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] v850: Update ioremap return type and add ioread/iowrite functionsMiles Bader
Signed-off-by: Miles Bader <miles@gnu.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] v850: Add defconfigsMiles Bader
Signed-off-by: Miles Bader <miles@gnu.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] v850: const-qualify first parameter of find_next_zero_bitMiles Bader
Signed-off-by: Miles Bader <miles@gnu.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] v850: Define pfn_validMiles Bader
Signed-off-by: Miles Bader <miles@gnu.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] CRIS IDE driverMikael Starvik
* Added abstraction layer for subarchs. * Added v32 support. * Renamed driver. Signed-off-by: Mikael Starvik <starvik@axis.com> Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] CRIS update: new subarchitecture v32Mikael Starvik
New CRIS sub architecture named v32. From: Dave Jones <davej@redhat.com> Fix swapped kmalloc args Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] CRIS update: updates for 2.6.12Mikael Starvik
Patches to make CRIS work with 2.6.12. Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] CRIS update: synchronous serial port driverMikael Starvik
Include file for synchronous serial port driver. Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] CRIS update: SMPMikael Starvik
Patches to support SMP. * Each CPU has its own current_pgd. * flush_tlb_range is implemented as flush_tlb_mm. * Atomic operations implemented with spinlocks. * Semaphores implemented with spinlocks. Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] CRIS update: profilerMikael Starvik
System-level profiler. Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] CRIS update: pciMikael Starvik
Patches to make it possible to add PCI support. Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] CRIS update: mmMikael Starvik
Memory management patches. * SMP support. * Non-executable stack (on v32). * 4-level page tables. * Added simple Thread Local Storage support. Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] CRIS update: misc patchesMikael Starvik
* Start threads with IRQs enabled. * Move symbol exports to arch specific file. * Prepare for real command line in the future. * Handle csum for partition that crosses flash boundary. * Set utsname. Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] CRIS update: IRQMikael Starvik
Use the generic IRQ framework Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] CRIS update: I/O and DMA allocatorMikael Starvik
Added I/O and DMA allocators to be used by drivers. Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] CRIS update: driversMikael Starvik
Updates to device drivers. * Use I/O and DMA allocators. * Use wait_event_interruptible instead of interrutiple_sleep_on. * Added spinlocks SMP. * Changed restore_flags to local_irq_restore etc. * Updated IDE driver include to fit 2.6.12. Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] CRIS update: debugMikael Starvik
Improvements to crash debug code. Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] CRIS update: consoleMikael Starvik
Changes to console. * Added LF->CRLF translation * Make use of real console framework. Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] CRIS update: configuration and buildMikael Starvik
Changes to configuration and build system. * Added v32 sub architecture. * Use generic hard IRQ. * Added SMP options. * Added options to OOPS at NMI and reboot at OOM. * Made it possible to set objtree. * Added option to select Kernel GDB serial port. * Corrected Kconfig usage. * Added system profiler. Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] CRIS update: arch splitMikael Starvik
Changes necessary to make the sub-arch split complete. Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] m32r: add missing Kconfig help textAdrian Bunk
There's no help text for CONFIG_DEBUG_STACKOVERFLOW - add one. Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] i386: add missing Kconfig help textAdrian Bunk
There's no help text for CONFIG_DEBUG_STACKOVERFLOW - add one. Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] mips: remove obsolete GIU driver for vr41xxYoichi Yuasa
This patch has removed obsolete GIU driver for vr41xx. This patch already has been applied to mips tree. Signed-off-by: Yoichi Yuasa <yuasa@hh.iij4u.or.jp> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] ppc64: remove another fixed address constraintDavid Gibson
Presently the LparMap, one of the structures the kernel shares with the legacy iSeries hypervisor has a fixed offset address in head.S. This patch changes this so the LparMap is a normally initialized structure, without fixed address. This allows us to use macros to compute some of the values in the structure, which wasn't previously possible because the assembler always uses signed-% which gets the wrong answers for the computations in question. Unfortunately, a gcc bug means that doing this requires another structure (hvReleaseData) to be initialized in asm instead of C, but on the whole the result is cleaner than before. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] ppc64: dynamically allocate segment tablesDavid Gibson
PPC64 machines before Power4 need a segment table page allocated for each CPU. Currently these are allocated statically in a big array in head.S for all CPUs. The segment tables need to be in the first segment (so do_stab_bolted doesn't take a recursive fault on the stab itself), but other than that there are no constraints which require the stabs for the secondary CPUs to be statically allocated. This patch allocates segment tables dynamically during boot, using lmb_alloc() to ensure they are within the first 256M segment. This reduces the kernel image size by 192k... Tested on RS64 iSeries, POWER3 pSeries, and POWER5. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] make a few functions static in pmac_setup.cOlaf Hering
Making a few functions static saves a few bytes, but only on ppc32. text data bss dec hex filename 3752421 1605208 345608 5703237 570645 ../O-ppc64_iSeries_defconfig/vmlinux 3709411 2042552 339992 6091955 5cf4b3 ../O-ppc64_maple_defconfig/vmlinux 5397329 3054824 679856 9132009 8b57e9 ../O-ppc64_pSeries_defconfig/vmlinux -3882695 417552 197760 4498007 44a257 ../O-ppc_common_defconfig/vmlinux -3414510 574500 241440 4230450 408d32 ../O-ppc_pmac_defconfig/vmlinux +3882627 417168 197760 4497555 44a093 ../O-ppc_common_defconfig/vmlinux +3414442 575428 241440 4231310 40908e ../O-ppc_pmac_defconfig/vmlinux Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] ppc64: genrtc build fixAndrew Morton
genrtc.c won't compile on ppc64. Seems that ppc32 does support it though? We do this wrong btw - we should be selecting GEN_RTC in each arch/xxx/Kconfig. Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] ppc64: hide CONFIG_ADBOlaf Hering
This bites me all day when I use our default config for ppc64. We use a patch to fix the compile errors and provide the CONFIG_MAC_EMUMOUSEBTN functionality (which is behind CONFIG_INPUT_ADBHID). But Benh doesnt like it. http://ozlabs.org/pipermail/linuxppc64-dev/2005-March/003423.html Just hide all the ADB parts from via-pmu on ppc64 instead. drivers/macintosh/adbhid.c: In function `adbhid_init': drivers/macintosh/adbhid.c:1199: error: `_MACH_chrp' undeclared (first use in this function) drivers/macintosh/adbhid.c:1199: error: (Each undeclared identifier is reported only once drivers/macintosh/adbhid.c:1199: error: for each function it appears in.) Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] ppc64: update defconfigsOlaf Hering
update defconfig, use new CONFIG_HZ and set it to 100 just for the kicks. Signed-off-by: Olaf Hering <olh@suse.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] ppc32: Fix building of TQM8260 boardKumar Gala
Added missing include of cpm2.h in correct order to allow TQM8260 to build Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] ppc32: fix 440SP MAL channels countEugene Surovegin
Fix the MAL channels count in PPC 440SP OCP definition. PPC 440SP has only 1 EMAC attached to MAL. Signed-off-by: Eugene Surovegin <ebs@ebshome.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] ppc32: fix dma_map_page() to use page_to_bus()Matt Porter
The following trivial patch changes dma_map_page() to use page_to_bus() instead of open-coding it (incorrectly in some cases). Signed-off-by: Eugene Surovegin <ebs@ebshome.net> Signed-off-by: Matt Porter <mporter@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] ppc32: Fix building of radstone_ppc7dKumar Gala
Updated radstone_ppc7d_defconfig to include the ds1337 driver which is used by the platform code. This fixes the link error when building. Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] ppc32: Fix building of prpmc750Kumar Gala
Updated prpmc750 platform code to include serial_reg.h to fix building. Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] ppc32: Fix typo in setup of 2nd PCI bus on 85xxKumar Gala
Typo bug that was using PCI1 defines instead of PCI2 when setting up the second PCI bus controller on 85xx based systems. This hasn't been a real issue since currently the PCI2 sizes are the same as the PCI1 sizes for currently supported boards. Thanks to Andrew Klossner @ Xerox for point this out. Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] ppc32: fix compilation error with CONFIG_PQ2FADSDowning, Thomas
The 2.6.12.3 kernel compilation fails for ARCH=ppc when CONFIG_PQ2FADS=y. This patch has been tested on Freescale PQ2FADS-ZU and -VR boards. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] ppc32: 8xx: update DataTLBMiss exception commentMarcelo Tosatti
On PPC 8xx, the DataTLBMiss handler does not jump directly to the page fault handler, as was the case in v2.4. It instead loads an invalid TLB which causes a subsequent DataTLBError exception. The comment on top of it haven't been update to reflect the change, though. Signed-off-by: Marcelo Tosatti <marcelo.tosatti@cyclades.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] ppc32: Make the UARTs on MPC824x individual platform devicesKumar Gala
The UARTs on the MPC824x are unique devices and really shouldn't be thought of as a DUART. In addition, if both UARTs are in use we need to configure the part to enable the 2nd UART since the pins for the UARTs are multiplexed. Adds support to run the 824x Sandpoint with both UARTs if desired. Signed-off-by: Matt McClintock <msm@freescale.com> Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] ppc32: Add proper prototype for cpm2_reset()Kumar Gala
Added a proper prototype for cpm2_reset() which gets rid of a build warning. Signed-off-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] ppc32: update defconfigsOlaf Hering
update pmac_defconfig enable all relevant options in common_defconfig, so it can serve as a compiletest for PPC_MULTIPLATFORM configuration Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] ppc/ppc64: use Kconfig.hzOlaf Hering
use new Kconfig.hz on ppc/ppc64, use also Kconfig.preempt for ppc Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] Remove bogus warning in page_alloc.cAndy Whitcroft
Originally __free_pages_bulk used the relative page number within a zone to define its buddies. This meant that to maintain the "maximally aligned" requirements (that an allocation of size N will be aligned at least to N physically) zones had to also be aligned to 1<<MAX_ORDER pages. When __free_pages_bulk was updated to use the relative page frame numbers of the free'd pages to pair buddies this released the alignment constraint on the 'left' edge of the zone. This allows _either_ edge of the zone to contain partial MAX_ORDER sized buddies. These simply never will have matching buddies and thus will never make it to the 'top' of the pyramid. The patch below removes a now redundant check ensuring that the mem_map was aligned to MAX_ORDER. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Cc: Christoph Lameter <christoph@lameter.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27[PATCH] madvise() does not always return -EBADF on non-file mapped areasuzuki
The madvise() system call returns -EBADF for areas which does not map to files, only for *behaviour* request MADV_WILLNEED. According to man pages, madvise returns : EBADF - the map exists, but the area maps something that isn't a file. Fixes bug 2995. Signed-off-by: Suzuki K P <suzuki@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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