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2005-10-21[PARISC] defconfig updatesKyle McMartin
defconfig updates from Kyle McMartin, Grant Grundler, and Matthew Wilcox. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Properly specify section alignment for real2.SGrant Grundler
.align applies to the current section - ie section directives come first. Thanks to Joel Soete for catching this. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Specify level to fix binutils level promotion bugGrant Grundler
fixup.S needs to specify .level and use correct LDREG macro. New binutils has a bug where it doesn't "promote" from PA1.0 to PA1.1 correctly when using ",s" completer. remove use of __LP64__ in assembly.h and add some white space. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Explicitly specify sr4 when flushing kernel spaceMatthew Wilcox
Specify sr4 when flushing kernel space (we could equally well use sr5-7, but must not use sr0). Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Properly specify index field to I/D cache flush opsGrant Grundler
replace use of "0" with "%r0" since PA 1.1 I/D flush ops only take a general register and not an immediate value for the index field. This just forces the code to always be PA 1.1 "clean". From: Joel Soete <soete.joel@tiscali.be> Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Fix copy_user_page_asm to NOT access past end of pageGrant Grundler
2.6.12-rc2-pa3 fix copy_user_page_asm to NOT access past end of page. My bad. /o\ Lamont confirmed that instructions following a conditional branch are *alway* executed regardless if the branch is taken or not. Unless they are nullified (which was missing in this case). He also noted: Conditional branches nullify on forward taken branch, and on non-taken backward branch. Note that .+4 is a backwards branch. This makes alot more sense than the giberish in the PA20 arch book. Compiles and boots on both 64-bit (a500) and 32-bit (j6k). Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Remove the spurious do_softirq calls from entry.SJames Bottomley
remove the spurious do_softirq calls from entry.S With these in we were calling do_softirq twice; plus the calls in entry.S took no account of nesting. Signed-off-by: James Bottomley <jejb@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Fix the alloc_slabmgmt panicJames Bottomley
Fix the alloc_slabmgmt panic Hopefully this should also fix a lot of other intermittent kernel bugs. The problem has been around since 2.6.9-rc2-pa6 when we allowed floating point registers to be used in kernel code. The essence of the problem is that gcc prefers to use floating point for integer divides and multiples. Further, it can rely on the values in the no clobber fp regs being correct across a function call. Unfortunately, our task switch function only saves the integer no clobber registers, not the fp ones, so if gcc makes a function call to any function in the kernel which could sleep, the values it is relying on in any no clobber floating point register may be lost. In the case of alloc_slabmgmt, the value of the page offset is being stored in %fr12 across a call to kmem_getpages(), which sleeps if no pages are available. Thus, the offset can be trashed and the slab code can end up with a completely bogus address leading to corruption. Kudos to Randolph who came up with the program to trip this problem at will and thus allowed it to be tracked and fixed. Signed-off-by: James Bottomley <jejb@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Implement 5 argument clone.Carlos O'Donell
* arch/parisc/kernel/process.c (sys_clone): Use 5 args, and process CLONE_PARENT_SETTID, CLONE_CHILD_SETTID, CLONE_CHILD_CLEARTID. (copy_thread): First cut at CLONE_SETTLS. Signed-off-by: Carlos O'Donell <carlos@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Update Kconfig for itimer selectionGrant Grundler
2.6.14-rc2-pa1: enable 100/250/1000HZ itimer selection Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Mark floppy as broken. Thanks Joel Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> make DISCONTIGMEM depend on 64BIT Signed-off-by: Thibaut VARENE <varenet@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Update minimum compiler version and CROSS_COMPILE for parisc64Randolph Chung
Prefix changed in debian, include "gnu" in the commandline. Signed-off-by: Carlos O'Donell <carlos@parisc-linux.org> Ensure the compiler version is new enough (>= 3.3) Signed-off-by: Randolph Chung <tausq@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Document history of PDC_NARROW as it is now obsoleteGrant Grundler
Document history of PDC_NARROW a bit as it will still show up in an older kernel's .config file. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] kfree cleanups to ioctl32.cJesper Juhl
2.6.12-rc2-pa2 kfree cleanups from Jesper Juhl Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Cleanup whitespace and handle proc_mkdir() failures in pci-dma.cGrant Grundler
1) cleanup whitespace and handle proc_mkdir() failures. From: Christophe Lucas <clucas@rotomalug.org> 2) rename "dino" entry to "pcxl_dma"...also seems like it's in the wrong location. 3) don't dump resource bitmap in /proc/pcxl_dma output 4) fixup compiler warning Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] More informative error message in pcibios_link_hba_resourcesGrant Grundler
Generate a more informative message when a resource does not have a parent. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Update pdc console from parisc treeMatthew Wilcox
Get rid of some unnecessary includes Remove a layer of macro indirection around pdc_console_device Delete pdc_console_die() as it is unused Avoid double-printing on panic by clearing CON_PRINTBUFFER rather than setting con_start to be log_end Make con_start and log_end static again Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Prevent signal loops if we have a problem setting up a frameRandolph Chung
2.6.13-rc6-pa2 use force_sigsegv() if we have a problem setting up a frame. This is required to prevent SIGSEGV loops. Signed-off-by: Randolph Chung <tausq@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Add printing of fpregs state to stack dumpThibaut Varene
We're using fp regs now in the kernel, so we want to print them on stack dump Signed-off-by: Thibaut VARENE <varenet@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Disable use of fpregs in pa_memcpyRandolph Chung
Disable use of fpregs in pa_memcpy, and turn on the -mdisable-fpregs flag. Signed-off-by: Randolph Chung <tausq@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Add sync required after fdc to enforce insn orderingGrant Grundler
PA20 arch book (page 7-52 and 7-55) indicate a "sync" is required after the FDC "to enforce instruction ordering". And we want to make sure FIC is executed after FDC has retired. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Replace uses of __LP64__ with CONFIG_64BITGrant Grundler
2.6.12-rc4-pa3 s/__LP64__/CONFIG_64BIT/ and fixup config.h usage Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Use work queue in LED/LCD driver instead of tasklet.Grant Grundler
2.6.12-rc1-pa6 use work queue in LED/LCD driver instead of tasklet. Main advantage is it allows use of msleep() in the led_LCD_driver to "atomically" perform two MMIO writes (CMD, then DATA). Lead to nice cleanup of the main led_work_func() and led_LCD_driver(). Kudos to David for being persistent. From: David Pye <dmp@davidmpye.dyndns.org> Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Add new ioprio_{set,get} syscallsJens Axboe
add syscall entries for ioprio_set/get as per Jens Axboe. Signed-off-by: Jens Axboe <axboe@suse.de> Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Fix parisc_setup_cache_timing to choose a better flush thresholdStuart Brady
update comment about CAFL_STRIDE Signed-off-by: Kyle McMartin <kyle@parisc-linux.org> Fixed a bug in parisc_setup_cache_timing() which caused it to calculate a poor value for parisc_cache_flush_threshold. Thanks to Joel Soete for spotting the bug. Thanks to James Bottomley for pointing out the clean way to fix this. Signed-off-by: Stuart Brady <sdb@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Add ability for prctl to change unaligned trap behaviourKyle McMartin
Add support for changing unaligned trap behaviour on a per-thread basis. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Replace some calls to bl with b,l or bv to use longer offsetsRandolph Chung
convert some bl calls to b,l or bv to use longer offsets Signed-off-by: Randolph Chung <tausq@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Take into account nullified insn and lock functions for profilingRandolph Chung
export profile_pc() symbol - oprofile needs it when built as a module. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Take into account nullified insn and lock functions for profiling This is needed at the end of functions; it is typical that the return branch nullifies the next insn, which is in the next function. This causes profiling data to show up against the "wrong" function. We also count lock times against the locker. This is consistent with other architectures. Signed-off-by: Randolph Chung <tausq@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Make sure use of RFI conforms to PA 2.0 and 1.1 arch docsGrant Grundler
2.6.12-rc4-pa3 : first pass at making sure use of RFI conforms to PA 2.0 arch pages F-4 and F-5, PA 1.1 Arch page 3-19 and 3-20. The discussion revolves around all the rules for clearing PSW Q-bit. The hard part is meeting all the rules for "relied upon translation". .align directive is used to guarantee the critical sequence ends more than 8 instructions (32 bytes) from the end of page. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Convert parisc_device to use struct resource for hpaMatthew Wilcox
Convert pa_dev->hpa from an unsigned long to a struct resource. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Fix up users of ->hpa to use ->hpa.start instead. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Convert parisc_device tree to use struct device klistsMatthew Wilcox
Fix parse_tree_node. much more needs to be done to fix this file. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Make drivers.c compile based on a patch from Pat Mochel. From: Patrick Mochel <mochel@digitalimplant.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org> Fix drivers.c to create new device tree nodes when no match is found. Signed-off-by: Richard Hirst <rhirst@parisc-linux.org> Do a proper depth-first search returning parents before children, using the new klist infrastructure. Signed-off-by: Richard Hirst <rhirst@parisc-linux.org> Fixed parisc_device traversal so that pdc_stable works again Fixed check_dev so it doesn't dereference a parisc_device until it has verified the bus type Signed-off-by: Randolph Chung <tausq@parisc-linux.org> Convert pa_dev->hpa from an unsigned long to a struct resource. Use insert_resource() instead of request_mem_region(). Request resources at bus walk time instead of driver probe time. Don't release the resources as we don't have any hotplug parisc_device support yet. Add parisc_pathname() to conveniently get the textual representation of the hwpath used in sysfs. Inline the remnants of claim_device() into its caller. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> I noticed that some of the STI regions weren't showing up in iomem. Reading the STI spec indicated that all STI devices occupy at least 32MB. So check for STI HPAs and give them 32MB instead of 4kB. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PATCH] typo fix in last cpufreq powernow patchChris Wright
Not sure how it slipped by, but here's a trivial typo fix for powernow. Signed-off-by: Chris Wright <chrisw@osdl.org> [ It's "nurter" backwards.. Maybe we have a hillbilly The Shining fan? ] Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21[PATCH] cpufreq: fix pending powernow timer stuck conditionDave Jones
AMD recently discovered that on some hardware, there is a race condition possible when a C-state change request goes onto the bus at the same time as a P-state change request. Both requests happen, but the southbridge hardware only acknowledges the C-state change. The PowerNow! driver is then stuck in a loop, waiting for the P-state change acknowledgement. The driver eventually times out, but can no longer perform P-state changes. It turns out the solution is to resend the P-state change, which the southbridge will acknowledge normally. Thanks to Johannes Winkelmann for reporting this and testing the fix. Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21[PATCH] ppc64: Fix typo bug in iSeries hash codeDavid Gibson
This fixes a stupid typo bug in the iSeries hash table code. When we place a hash PTE in the secondary bucket, instead of setting the SECONDARY flag bit, as we should, we (redundantly) set the VALID flag. This was introduced with the patch abolishing bitfields from the hash table code. Mea culpa, oops. It hasn't been noticed until now because in practice we don't hit the secondary bucket terribly often. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
2005-10-21[PATCH] ppc64: Fix pages marked dirty abusivelyBenjamin Herrenschmidt
While working on 64K pages, I found this little buglet in our update_mmu_cache() implementation. The code calls __hash_page() passing it an "access" parameter (the type of access that triggers the hash) containing the bits _PAGE_RW and _PAGE_USER of the linux PTE. The latter is useless in this case and the former is wrong. In fact, if we have a writeable PTE and we pass _PAGE_RW to hash_page(), it will set _PAGE_DIRTY (since we track dirty that way, by hash faulting !dirty) which is not what we want. In fact, the correct fix is to always pass 0. That means that only read-only or already dirty read write PTEs will be preloaded. The (hopefully rare) case of a non dirty read write PTE can't be preloaded this way, it will have to fault in hash_page on the actual access. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21[PATCH] ppc64: Fix typo in time calculationsPaul Mackerras
This fixes a typo in the div128_by_32 function used in the timekeeping calculations on ppc64. If you look at the code it's quite obvious that we need (rb + c) rather than (rb + b). The "b" is clearly just a typo. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21[ARM] Fix Integrator IM/PD-1 supportRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-20[ARM] 3027/1: BAST - reduce NAND timings slightlyBen Dooks
Patch from Ben Dooks The current Simtec BAST nand area timings are a little too slow to be obtained by a 2410 running at 266MHz, so reduce the timings slightly to bring them into the acceptable range. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-20[ARM] 3025/1: Add I2S platform device for PXAMatt Reimer
Patch from Matt Reimer Adds an I2S platform_device for PXA. I2S is used to interface with sound chips on systems like iPAQ h1910/h2200/hx4700 and Asus 716. Signed-off-by: mreimer@vpop.net Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-19[PATCH] build fix for uml/amd64Al Viro
Missing half of the [PATCH] uml: Fix sysrq-r support for skas mode We need to remove these (UPT_[DEFG]S) from the read side as well as the write one - otherwise it simply won't build. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-19[PATCH] ppc64: update defconfigsPaul Mackerras
Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-19Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
2005-10-19[PATCH] swiotlb: make sure initial DMA allocations really are in DMA memoryYasunori Goto
This introduces a limit parameter to the core bootmem allocator; The new parameter indicates that physical memory allocated by the bootmem allocator should be within the requested limit. We also introduce alloc_bootmem_low_pages_limit, alloc_bootmem_node_limit, alloc_bootmem_low_pages_node_limit apis, but alloc_bootmem_low_pages_limit is the only api used for swiotlb. The existing alloc_bootmem_low_pages() api could instead have been changed and made to pass right limit to the core allocator. But that would make the patch more intrusive for 2.6.14, as other arches use alloc_bootmem_low_pages(). We may be done that post 2.6.14 as a cleanup. With this, swiotlb gets memory within 4G for both x86_64 and ia64 arches. Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: Ravikiran G Thirumalai <kiran@scalex86.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-19[PATCH] ppc64: Fix error in vDSO 32 bits dateBenjamin Herrenschmidt
The implementation of __kernel_gettimeofday() in the 32 bits vDSO has a small bug (a typo actually) that will cause it to lose 1 bit of precision. Not terribly bad but worth fixing. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-19[ARM] 3024/1: Add cpu_v6_proc_finTony Lindgren
Patch from Tony Lindgren Machine restart calls cpu_proc_fin() to clean and disable cache, and turn off interrupts. This patch adds proper cpu_v6_proc_fin. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-18[ARM] 3018/1: S3C2410 - check de-referenced device is really a platform deviceBen Dooks
Patch from Ben Dooks Check that the device we are looking at is really a platform device before trying to cast it to one to find out the platform bus number. Thanks to RMK for pointing this out. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-14Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
2005-10-14Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
2005-10-14[PATCH] ppc64: Fix G5 model in /proc/cpuinfoBenjamin Herrenschmidt
Andreas Schwab spotted that recent kernels broke reporting of the PowerMac machine model in /proc/cpuinfo. This fixes it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-14[PATCH] m32r: Fix smp.c for preempt kernelHirokazu Takata
This patch fixes the following BUG message of arch/m32r/smp.c for CONFIG_DEBUG_PREEMPT: BUG: using smp_processor_id() in preemptible This message is displayed by an smp_processor_id() execution during kernel's preemptible-state. Signed-off-by: Hitoshi Yamamoto <hitoshiy@isl.melco.co.jp> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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