- 30 3月, 2010 1 次提交
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由 Tejun Heo 提交于
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: NTejun Heo <tj@kernel.org> Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
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- 23 3月, 2010 9 次提交
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由 Paul Mundt 提交于
The parent rb_node needs to be initialized to shut up the compiler, even though we're unlikely to ever hit this issue at run time. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
select_idle_routine() and register_sh_pmu() both needed their annotations fixed up to silence section mismatch warnings. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
set_pmb_entry() is now only used by a function that is wrapped in #ifdef CONFIG_PM, so wrap set_pmb_entry() in CONFIG_PM too. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
Setting the TI in MMUCR causes all the TLB bits in MMUCR to be cleared. Unfortunately, the TLB wired bits are also cleared when setting the TI bit, causing any wired TLB entries to become unwired. Use local_flush_tlb_all() which implements TLB flushing in a safer manner by using the memory-mapped TLB registers. As each CPU has its own PMB the modifications in pmb_init() only affect the local CPU, so only flush the local CPU's TLB. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
flush_tlb_page() can be used to flush TLB entries that map executable pages. Therefore, we need to ensure that the ITLB is also flushed in local_flush_tlb_page(). Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Andreas Bombe 提交于
interruptible_sleep_on() is referenced for use in the mid_sched macro which is not used anywhere. Remove reference and macro as well as the comment which appears to belong with them. Signed-off-by: NAndreas Bombe <aeb@debian.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Kuninori Morimoto 提交于
Signed-off-by: NKuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Kuninori Morimoto 提交于
Signed-off-by: NKuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Kuninori Morimoto 提交于
i2c_put_adapter is needed after i2c_get_adapter Signed-off-by: NKuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 13 3月, 2010 5 次提交
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由 FUJITA Tomonori 提交于
All the architectures properly set NEED_DMA_MAP_STATE now so we can safely add linux/pci-dma.h to linux/pci.h and remove the linux/pci-dma.h inclusion in arch's asm/pci.h Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: NArnd Bergmann <arnd@arndb.de> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 FUJITA Tomonori 提交于
Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: NPaul Mundt <lethal@linux-sh.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Christoph Hellwig 提交于
While in theory user_enable_single_step/user_disable_single_step/ user_enable_blockstep could also be provided as an inline or macro there's no good reason to do so, and having the prototype in one places keeps code size and confusion down. Roland said: The original thought there was that user_enable_single_step() et al might well be only an instruction or three on a sane machine (as if we have any of those!), and since there is only one call site inlining would be beneficial. But I agree that there is no strong reason to care about inlining it. As to the arch changes, there is only one thought I'd add to the record. It was always my thinking that for an arch where PTRACE_SINGLESTEP does text-modifying breakpoint insertion, user_enable_single_step() should not be provided. That is, arch_has_single_step()=>true means that there is an arch facility with "pure" semantics that does not have any unexpected side effects. Inserting a breakpoint might do very unexpected strange things in multi-threaded situations. Aside from that, it is a peculiar side effect that user_{enable,disable}_single_step() should cause COW de-sharing of text pages and so forth. For PTRACE_SINGLESTEP, all these peculiarities are the status quo ante for that arch, so having arch_ptrace() itself do those is one thing. But for building other things in the future, it is nicer to have a uniform "pure" semantics that arch-independent code can expect. OTOH, all such arch issues are really up to the arch maintainer. As of today, there is nothing but ptrace using user_enable_single_step() et al so it's a distinction without a practical difference. If/when there are other facilities that use user_enable_single_step() and might care, the affected arch's can revisit the question when someone cares about the quality of the arch support for said new facility. Signed-off-by: NChristoph Hellwig <hch@lst.de> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Roland McGrath <roland@redhat.com> Acked-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Christoph Hellwig 提交于
Add generic implementations of the old and really old uname system calls. Note that sh only implements sys_olduname but not sys_oldolduname, but I'm not going to bother with another ifdef for that special case. m32r implemented an old uname but never wired it up, so kill it, too. Signed-off-by: NChristoph Hellwig <hch@lst.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: James Morris <jmorris@namei.org> Cc: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Christoph Hellwig 提交于
Add a generic implementation of the ipc demultiplexer syscall. Except for s390 and sparc64 all implementations of the sys_ipc are nearly identical. There are slight differences in the types of the parameters, where mips and powerpc as the only 64-bit architectures with sys_ipc use unsigned long for the "third" argument as it gets casted to a pointer later, while it traditionally is an "int" like most other paramters. frv goes even further and uses unsigned long for all parameters execept for "ptr" which is a pointer type everywhere. The change from int to unsigned long for "third" and back to "int" for the others on frv should be fine due to the in-register calling conventions for syscalls (we already had a similar issue with the generic sys_ptrace), but I'd prefer to have the arch maintainers looks over this in details. Except for that h8300, m68k and m68knommu lack an impplementation of the semtimedop sub call which this patch adds, and various architectures have gets used - at least on i386 it seems superflous as the compat code on x86-64 and ia64 doesn't even bother to implement it. [akpm@linux-foundation.org: add sys_ipc to sys_ni.c] Signed-off-by: NChristoph Hellwig <hch@lst.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Reviewed-by: NH. Peter Anvin <hpa@zytor.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: James Morris <jmorris@namei.org> Cc: Andreas Schwab <schwab@linux-m68k.org> Acked-by: NJesper Nilsson <jesper.nilsson@axis.com> Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk> Acked-by: NDavid Howells <dhowells@redhat.com> Acked-by: NKyle McMartin <kyle@mcmartin.ca> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 10 3月, 2010 3 次提交
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由 Peter Zijlstra 提交于
Remove the hw_perf_event_*() hotplug hooks in favour of per PMU hotplug notifiers. This has the advantage of reducing the static weak interface as well as exposing all hotplug actions to the PMU. Use this to fix x86 hotplug usage where we did things in ONLINE which should have been done in UP_PREPARE or STARTING. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mundt <lethal@linux-sh.org> Cc: paulus@samba.org Cc: eranian@google.com Cc: robert.richter@amd.com Cc: fweisbec@gmail.com Cc: Arnaldo Carvalho de Melo <acme@infradead.org> LKML-Reference: <20100305154128.736225361@chello.nl> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Paul Mundt 提交于
oprofile and others need to get at these, so provide symbol exports. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
pmb_bolt_mapping() is undefined on 29-bit builds, so provide a stub. This fixes up the NUMA build on platforms lacking PMB support. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 08 3月, 2010 2 次提交
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由 Paul Mundt 提交于
The uncached_start was being set up properly for 32-bit but managed to break 29-bit in the process, fix it up. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Emese Revfy 提交于
Constify struct sysfs_ops. This is part of the ops structure constification effort started by Arjan van de Ven et al. Benefits of this constification: * prevents modification of data that is shared (referenced) by many other structure instances at runtime * detects/prevents accidental (but not intentional) modification attempts on archs that enforce read-only kernel data at runtime * potentially better optimized code as the compiler can assume that the const data cannot be changed * the compiler/linker move const data into .rodata and therefore exclude them from false sharing Signed-off-by: NEmese Revfy <re.emese@gmail.com> Acked-by: NDavid Teigland <teigland@redhat.com> Acked-by: NMatt Domsch <Matt_Domsch@dell.com> Acked-by: NMaciej Sosnowski <maciej.sosnowski@intel.com> Acked-by: NHans J. Koch <hjk@linutronix.de> Acked-by: NPekka Enberg <penberg@cs.helsinki.fi> Acked-by: NJens Axboe <jens.axboe@oracle.com> Acked-by: NStephen Hemminger <shemminger@vyatta.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 05 3月, 2010 2 次提交
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由 John Stultz 提交于
This patch converts the sh architecture to use the generic read_persistent_clock and update_persistent_clock interfaces, reducing the amount of arch specific code we have to maintain, and allowing for further cleanups in the future. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NJohn Stultz <johnstul@us.ibm.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Pawel Moll 提交于
... so the "sh_debugfs_root" is already available. Previously it wasn't and in result its path was "/sys/kernel/debug/pmb" instead of "/sys/kernel/debug/sh/pmb". Signed-off-by: NPawel Moll <pawel.moll@st.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 04 3月, 2010 2 次提交
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由 Paul Mundt 提交于
flush_cache_all() uses broadcast IPIs, so we can't wrap in to that when IRQs are disabled. The local cache flush manages to do what we need here anyways, so just switch to that. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
Presently we run in to issues with the MMU resetting the CPU when variable sized mappings are employed. This takes a slightly more aggressive approach to keeping the TLB and cache state sane before establishing the mappings in order to cut down on races observed on SMP configurations. At the same time, we bump the VMA range up to the 0xb000...0xc000 range, as there still seems to be some undocumented behaviour in setting up variable mappings in the 0xa000...0xb000 range, resulting in reset by the TLB. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 03 3月, 2010 2 次提交
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由 Paul Mundt 提交于
In the case of NUMA emulation when in range PPNs are being used for secondary nodes, we need to make sure that the PMB has a mapping for it before setting up the pgdat. This prevents the MMU from resetting. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
When entries are being bolted unconditionally it's possible that the boot loader has established mappings that are within range that we don't want to clobber. Perform some basic validation to ensure that the new mapping is out of range before allowing the entry setup to take place. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 02 3月, 2010 12 次提交
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由 Paul Mundt 提交于
This moves the pmb_remap_caller() mapping logic out in to pmb_bolt_mapping(), which enables us to establish fixed mappings in places such as the NUMA code. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This plugs in an early_param for permitting transparent PMB-backed ioremapping to be enabled/disabled. For the time being, we use a default-disabled policy. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This implements a fairly significant overhaul of the dynamic PMB mapping code. The primary change here is that the PMB gets its own VMA that follows the uncached mapping and we attempt to be a bit more intelligent with dynamic sizing, multi-entry mapping, and so forth. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
Trivial build fix, following the change from asm-generic/topology.h. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
ctrl_read/writeX are deprecated, this converts them over to their __raw_read/write() counterparts. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Guennadi Liakhovetski 提交于
This patch extends the .device_terminate_all() method of the shdma driver to return number of bytes transfered in the current descriptor. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Guennadi Liakhovetski 提交于
DMA CHCR register layout is equal on sh7722 and sh7724, reuse definitions. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Guennadi Liakhovetski 提交于
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Guennadi Liakhovetski 提交于
Separate SH DMA headers into ones, commonly used by both drivers, and ones, specific to each of them. This will make the future development of the dmaengine driver easier. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Guennadi Liakhovetski 提交于
The shdma dmaengine driver currently uses numerous macros to support various platforms, selected by ifdef's. Convert it to use platform device resources and lists of channel descriptors to specify register locations, interrupt numbers and other system-specific configuration variants. Unavoidably, we have to simultaneously convert all shdma users to provide those resources. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Guennadi Liakhovetski 提交于
Configure SIU port B pins and register the WM8978 audio codec. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Guennadi Liakhovetski 提交于
This patch is required to use the SIU ASoC driver on sh7722 systems. Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 01 3月, 2010 2 次提交
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由 Robert P. J. Day 提交于
Since <linux/spinlock.h> already includes <linux/rwlock.h>, and the latter file will warn about not having included the former file anyway, there is no value in including rwlock.h explicitly. Signed-off-by: NRobert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Andrea Gelmini 提交于
arch/sh/boot/compressed/cache.c:8: WARNING: space prohibited between function name and open parenthesis '(' Signed-off-by: NAndrea Gelmini <andrea.gelmini@gelma.net> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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