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* [PATCH] A few small additions and corrections to READMEJesper Juhl2006-12-061-6/+11
| | | | | | | | | | | | | | Here's a small patch which - adds a few archs to the current list of supported platforms. - adds a few missing slashes at the end of URLs. - adds a few references to additional documentation. - adds "make config" to the list of possible configuration targets. - makes a few other minor changes. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> [ Ben Nizette <ben.nizette@iinet.net.au> points out AVR32 arch too ] Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Clean up 'make help' output for documentation targets.Jesper Juhl2006-12-061-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Here's a patch that cleans up the "make help" output a bit for the documentation targets. Currently the documentation targets are listed completely different than all the other targets : Documentation targets: Linux kernel internal documentation in different formats: xmldocs (XML DocBook), psdocs (Postscript), pdfdocs (PDF) htmldocs (HTML), mandocs (man pages, use installmandocs to install) with this patch they are more in line with the rest of the output : Documentation targets: Linux kernel internal documentation in different formats: htmldocs - HTML installmandocs - install man pages generated by mandocs mandocs - man pages pdfdocs - PDF psdocs - Postscript xmldocs - XML DocBook Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2006-12-0630-323/+139
|\ | | | | | | | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Import updates from i386's i8259.c [MIPS] *-berr: Header inclusions for DEC bus error handlers [MIPS] Compile __do_IRQ() when really needed [MIPS] genirq: use name instead of typename [MIPS] Do not use handle_level_irq for ioasic_dma_irq_type. [MIPS] pte_offset(dir,addr): parenthesis fix
| * [MIPS] Import updates from i386's i8259.cAtsushi Nemoto2006-12-062-84/+115
| | | | | | | | | | | | | | Import many updates from i386's i8259.c, especially genirq transitions. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] *-berr: Header inclusions for DEC bus error handlersMaciej W. Rozycki2006-12-062-0/+3
| | | | | | | | | | | | | | | | A fixup to add missing header inclusions for bus error handlers for DECstation system after the recent switch to get_irq_regs(). Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Compile __do_IRQ() when really neededFranck Bui-Huu2006-12-0623-231/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | __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>
| * [MIPS] genirq: use name instead of typenameAtsushi Nemoto2006-12-061-1/+1
| | | | | | | | | | | | | | 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>
| * [MIPS] Do not use handle_level_irq for ioasic_dma_irq_type.Atsushi Nemoto2006-12-061-2/+1
| | | | | | | | | | Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] pte_offset(dir,addr): parenthesis fixFranck Bui-Huu2006-12-062-5/+5
| | | | | | | | | | | | | | | | | | | | | | This patch adds missing parenthesis around 'dir' argument in pte_offset() macro definition. It also removes an extra space in the definition of pte_offset_kernel() macro. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | Merge branch 'release' of ↵Linus Torvalds2006-12-061-2/+2
|\ \ | | | | | | | | | | | | | | | | | | master.kernel.org:/home/ftp/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of master.kernel.org:/home/ftp/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Fix pci.c kernel compilation breakage.
| * | [IA64] Fix pci.c kernel compilation breakage.Peter Chubb2006-12-061-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The recent change to convert the is_enabled flag in the PCI device to an atomic count broke the IA64 compilation. As pcibios_disable_device is only ever called if the reference count is zero, convert the if to a BUG_ON. Signed-off-by: Peter Chubb <peterc@gelato.unsw.edu.au> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | [PATCH] ... and then some more work_struct-induced breakage (ibmvscsi)Al Viro2006-12-061-4/+6
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] ... and more work_struct-induced breakage (mips)Al Viro2006-12-062-5/+13
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] More work_struct induced breakage (s390)Al Viro2006-12-066-24/+21
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | x86[-64]:Remove 'volatile' from atomic_tLinus Torvalds2006-12-062-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Any code that relies on the volatile would be a bug waiting to happen anyway. Don't encourage people to think that putting 'volatile' on data structures somehow fixes problems. We should always use proper locking (and other serialization) techniques. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] Remove 'volatile' from spinlock_typesArt Haas2006-12-062-4/+4
|/ / | | | | | | | | | | | | | | | | | | | | | | | | This is a resubmission of patches originally created by Ingo Molnar. The link below is the initial (?) posting of the patch. http://marc.theaimsgroup.com/?l=linux-kernel&m=115217423929806&w=2 Remove 'volatile' from spinlock_types as it causes GCC to generate bad code (see link) and locking should be used on kernel data. Signed-off-by: Art Haas <ahaas@airmail.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] drivers/{char|isdn}: work_struct-induced breakageAl Viro2006-12-066-23/+22
| | | | | | | | | | | | | | part 1 of fsck-knows-how-many Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] hamradio/dmascc: fix up work_struct-induced breakageAl Viro2006-12-061-4/+4
| | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds2006-12-06126-2965/+5650
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: (43 commits) sh: sh775x/titan fixes for irq header changes. sh: update r7780rp defconfig. sh: compile fixes for header cleanup. sh: Fixup pte_mkhuge() build failure. sh: set KBUILD_IMAGE to something sensible. sh: show held locks in stack trace with lockdep. sh: platform_pata support for R7780RP sh: stacktrace/lockdep/irqflags tracing support. sh: Fixup movli.l/movco.l atomic ops for gcc4. sh: dyntick infrastructure. sh: Clock framework tidying. sh: Turn off IRQs around get_timer_offset() calls. sh: Get the PGD right in oops case with 64-bit PTEs. sh: Fix store queue bitmap end. sh: More flexible + SH7780 earlyprintk SCIF support. sh: Fixup various PAGE_SIZE == 4096 assumptions. sh: Fixup 4K irq stacks. sh: dma-api channel capability extensions. sh: Drop name overload in dma-sh. sh: Make dma-isa depend on ISA_DMA_API. ...
| * | sh: sh775x/titan fixes for irq header changes.Jamie Lenehan2006-12-0610-159/+165
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following moves the creation of IPR interupts into setup-7750.c and updates a few other things to make it all work after the "Drop CPU subtype IRQ headers" commit. It boots and runs fine on my titan board. - adds an ipr_idx to the ipr_data and uses a function in the subtype code to calculate the address of the IPR registers - adds a function to enable individual interrupt mode for externals in the subtype code and calls that from the titan board code instead of doing it directly. - I changed the shift in the ipr_data to be the actual # of bits to shift, instead of the numnber / 4 - made it easier to match with the manual. Signed-off-by: Jamie Lenehan <lenehan@twibble.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: update r7780rp defconfig.Paul Mundt2006-12-061-20/+49
| | | | | | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: compile fixes for header cleanup.Paul Mundt2006-12-061-0/+2
| | | | | | | | | | | | | | | | | | | | | Since some header inclusion paths were cleaned up, compilation broke. Add in the headers we need directly to build again. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Fixup pte_mkhuge() build failure.Paul Mundt2006-12-061-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | When hugetlbpage support isn't enabled, this can be bogus. Wrap it back in _PAGE_FLAGS_HARD to avoid changes to the base PTE when not aiming for larger sizes. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: set KBUILD_IMAGE to something sensible.Paul Mundt2006-12-061-1/+3
| | | | | | | | | | | | | | | | | | This was missing for sh too, wire it up.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: show held locks in stack trace with lockdep.Paul Mundt2006-12-061-0/+6
| | | | | | | | | | | | | | | | | | Follows the same change as other architectures.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: platform_pata support for R7780RPPaul Mundt2006-12-061-0/+29
| | | | | | | | | | | | | | | | | | | | | | | | This adds a platform device for the directly connected CF interface on R7780RP boards, for use with the pata_platform libata driver. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: stacktrace/lockdep/irqflags tracing support.Paul Mundt2006-12-0611-103/+289
| | | | | | | | | | | | | | | | | | Wire up all of the essentials for lockdep.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Fixup movli.l/movco.l atomic ops for gcc4.Paul Mundt2006-12-061-24/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | gcc4 gets a bit pissy about the outputs: include/asm/atomic.h: In function 'atomic_add': include/asm/atomic.h:37: error: invalid lvalue in asm statement include/asm/atomic.h:30: error: invalid lvalue in asm output 1 ... this ended up being a thinko anyways, so just fix it up. Verified for proper behaviour with the older toolchains, too. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: dyntick infrastructure.Paul Mundt2006-12-063-1/+162
| | | | | | | | | | | | | | | | | | | | | | | | This adds basic NO_IDLE_HZ support to the SH timer API so timers are able to wire it up. Taken from the ARM version, as it fit in to our API with very few changes needed. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Clock framework tidying.Paul Mundt2006-12-069-23/+38
| | | | | | | | | | | | | | | | | | | | | | | | This syncs up the SH clock framework with the linux/clk.h API, for which there were only some minor changes required, namely the clk_get() dev_id and subsequent callsites. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Turn off IRQs around get_timer_offset() calls.Paul Mundt2006-12-064-29/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | Since all of the sys_timer sources currently do this on their own within the ->get_offset() path, it's more sensible to just have the caller take care of it when grabbing xtime_lock. Incidentally, this is more in line with what others (ie, ARM) are doing already. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Get the PGD right in oops case with 64-bit PTEs.Paul Mundt2006-12-061-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously this was using a static pgd shift in the reporting code, simply flip this to PGDIR_SHIFT which does the right thing depending on varying PTE magnitudes on the SH-X2 MMU. While we're at it, and since it's been recently added, use get_TTB() for fetching the TTB, rather than the open coded instructions. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Fix store queue bitmap end.Paul Mundt2006-12-061-6/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The end of the store queue bitmap is miscalculated when searching for a free range in sq_remap(), missing the PAGE_SHIFT shift that's done in sq_api_init(). This runs in to workloads where we can scan beyond the end of the bitmap. Spotted by Paul Jackson: http://marc.theaimsgroup.com/?l=linux-kernel&m=116493191224097&w Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: More flexible + SH7780 earlyprintk SCIF support.Paul Mundt2006-12-063-24/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This makes the early printk support somewhat more flexible, moving the port definition to a config option, and making the port initialization configurable for sh-ipl+g users. At the same time, this allows us to trivially wire up the SH7780 SCIF0, so that's thrown in too more or less for free. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Fixup various PAGE_SIZE == 4096 assumptions.Paul Mundt2006-12-0611-45/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There were a number of places that made evil PAGE_SIZE == 4k assumptions that ended up breaking when trying to play with 8k and 64k page sizes, this fixes those up. The most significant change is the way we load THREAD_SIZE, previously this was done via: mov #(THREAD_SIZE >> 8), reg shll8 reg to avoid a memory access and allow the immediate load. With a 64k PAGE_SIZE, we're out of range for the immediate load size without resorting to special instructions available in later ISAs (movi20s and so on). The "workaround" for this is to bump up the shift to 10 and insert a shll2, which gives a bit more flexibility while still being much cheaper than a memory access. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Fixup 4K irq stacks.Paul Mundt2006-12-061-7/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There was a clobber issue with the register we were saving the stack in, so we switch to a register that we handle in the clobber list properly already. This also follows the x86 changes for allowing the softirq checks from hardirq context. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: dma-api channel capability extensions.Mark Glaisher2006-12-062-96/+218
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This extends the SH DMA API for allowing handling of DMA channels based off of their respective capabilities. A couple of functions are added to the existing API, the core bits are register_chan_caps() for registering channel capabilities, and request_dma_bycap() for fetching a channel dynamically based off of a capability set. Signed-off-by: Mark Glaisher <mark.glaisher@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Drop name overload in dma-sh.Paul Mundt2006-12-061-8/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pass along the dev_id from request_dma() all the way down, rather than inserting an artificial name relating to the TEI line that we were doing before. This makes the line a bit less obvious, but dev_id is the proper behaviour for this regardless. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Make dma-isa depend on ISA_DMA_API.Paul Mundt2006-12-061-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | Previously we linked in the ISA DMA wrapper unconditionally. As there are very few users of this, it's better to make it conditional. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: dma-sysfs fixes.Paul Mundt2006-12-061-8/+15
| | | | | | | | | | | | | | | | | | | | | | | | Handle the case where no registered DMACs exist somewhat more gracefully. While we're at it, check for sysdev_create_file() failing. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Fix syscall tracing ordering.Stuart Menefy2006-12-061-23/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The implementation of system call tracing in the kernel has a couple of ordering problems: - the validity of the system call number is checked before calling out to system call tracing code, and should be done after - the system call number used when tracing is the one the system call was invoked with, while the system call tracing code can legitimatly change the call number (for example strace permutes fork into clone) This patch fixes both of these problems, and also reoders the code slightly to make the direct path through the code the common case. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: KSTK_EIP/KSTK_ESP consistency.Stuart Menefy2006-12-061-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Two of the fields in /proc/[number]/stat are documented in proc(5) as: kstkesp %lu The current value of esp (stack pointer), as found in the kernel stack page for the process. kstkeip %lu The current EIP (instruction pointer). The SH currently prints the the last SP and PC of the process inside the kernel, while most other archs use the last user space values. This patch modifes the SH to display the user space values. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: TLB miss fast-path optimizations.Stuart Menefy2006-12-066-117/+204
| | | | | | | | | | | | | | | | | | | | | | | | Handle simple TLB miss faults which can be resolved completely from the page table in assembler. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: R7780RP push-switch support.Paul Mundt2006-12-062-1/+125
| | | | | | | | | | | | | | | | | | | | | This adds simple push-switch support for the RDBRP-1/RDBREVRP-1 debug boards found on the R7780RP-1. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: generic push-switch framework.Paul Mundt2006-12-065-1/+178
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds support for a generic push switch framework. Adaptable for various switches, including GPIO switches and the push switches commonly found on Renesas debug boards. This allows switch states to be trivially reported through sysfs. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: pmd rework.Stuart Menefy2006-12-064-48/+76
| | | | | | | | | | | | | | | | | | | | | | | | | | | Remove extra bits from the pmd structure and store a kernel logical address rather than a physical address. This allows it to be directly dereferenced. Another piece of wierdness inherited from x86. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Use MMU.TTB register as pointer to current pgd.Stuart Menefy2006-12-062-31/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add TTB accessor functions and give it a sensible default value. We will use this later for optimizing the fault path. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Set up correct siginfo structures for page faults.Stuart Menefy2006-12-064-58/+61
| | | | | | | | | | | | | | | | | | | | | | | | Remove the previous saving of fault codes into the thread_struct as they are never used, and appeared to be inherited from x86. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: gcc4 support.Stuart Menefy2006-12-068-64/+78
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes up the kernel for gcc4. The existing exception handlers needed some wrapping for pt_regs access, acessing the registers via a RELOC_HIDE() pointer. The strcpy() issues popped up here too, so add -ffreestanding and kill off the symbol export. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Explicit endian selection support.Paul Mundt2006-12-062-14/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously big endian was simply assumed if little endian was not set, which led to some cflags ordering issues. There's not much point to not having a big endian option, so shove one in a choice and wire it up in the Makefile. This lets us clean up some of the cflags ordering while we're at it. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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