- 17 10月, 2007 16 次提交
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由 Anton Blanchard 提交于
When checking out the new NO_HZ support in powerpc, I noticed we never slept for more than 2 seconds. It turns out SLAB has a 2 second per cpu timer that causes this. After switching to SLUB I see some nice 4 second sleeps which is the limit on this POWER6 box (the decrementer ticks at 512MHz): slept 4.19 sec slept 4.19 sec slept 4.19 sec slept 4.19 sec slept 3.96 sec slept 3.80 sec slept 2.99 sec Since SLUB is now the default and some powerpc defconfigs already enable it, lets enable SLUB across the board for consistency. While doing this I also noticed that the maple defconfig has SLAB debugging enabled which is sure to make your box nice and slow. Fix that too. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Olof Johansson 提交于
Buglet in the 1TB detection makes it return after checking the first property word, even if it's not a match. Signed-off-by: NOlof Johansson <olof@lixom.net> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Stephen Rothwell 提交于
Commit 1189be65 ([POWERPC] Use 1TB segments) added an argument to hpte_insert. Also make iSeries_hpte_insert static. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Stephen Rothwell 提交于
It seems to have been munged by patchwork. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Joachim Fenkes 提交于
Replace struct ibmebus_dev and struct ibmebus_driver with struct of_device and struct of_platform_driver, respectively. Match the external ibmebus interface and drivers using it. Signed-off-by: NJoachim Fenkes <fenkes@de.ibm.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NRoland Dreier <rolandd@cisco.com> Acked-by: NJeff Garzik <jeff@garzik.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Joachim Fenkes 提交于
The devtree root is now searched for devices matching a built-in whitelist during boot, so these devices appear on the bus from the beginning. It is still possible to manually add/remove devices to/from the bus by using the probe/remove sysfs interface. Also, when a device driver registers itself, the devtree is matched against its matchlist. Signed-off-by: NJoachim Fenkes <fenkes@de.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Joachim Fenkes 提交于
Remove old code that will be replaced by rewritten and shorter functions in the next patch. Keep struct ibmebus_dev and struct ibmebus_driver for now, but replace ibmebus_{,un}register_driver() by dummy functions. This way, the kernel will still compile and run during the transition and git bisect will be happy. Signed-off-by: NJoachim Fenkes <fenkes@de.ibm.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Joachim Fenkes 提交于
Extract generic of_device allocation code from of_platform_device_create() and move it into of_device.[ch], called of_device_alloc(). Also, there's now of_device_free() which puts the device node. This way, bus drivers that build on of_platform (like ibmebus will) can build upon this code instead of reinventing the wheel. Signed-off-by: NJoachim Fenkes <fenkes@de.ibm.com> Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Anton Blanchard 提交于
htab_bolt_mapping takes another argument now the 1TB code has been merged. Update vmemmap_populate to match. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Roland McGrath 提交于
This cleans up the formatting in the vDSO linker script, mostly just the use of whitespace. It's intended to approximate the kernel standard conventions for indenting C, treating elements of the linker script about like initialized variable definitions. Signed-off-by: NRoland McGrath <roland@redhat.com> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Roland McGrath 提交于
This cleans up the formatting in the vDSO linker script, mostly just the use of whitespace. It's intended to approximate the kernel standard conventions for indenting C, treating elements of the linker script about like initialized variable definitions. Signed-off-by: NRoland McGrath <roland@redhat.com> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Masami Hiramatsu 提交于
Introduce architecture dependent kretprobe blacklists to prohibit users from inserting return probes on the function in which kprobes can be inserted but kretprobes can not. This patch also removes "__kprobes" mark from "__switch_to" on x86_64 and registers "__switch_to" to the blacklist on x86-64, because that mark is to prohibit user from inserting only kretprobe. Signed-off-by: NMasami Hiramatsu <mhiramat@redhat.com> Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com> Acked-by: NAnanth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 KAMEZAWA Hiroyuki 提交于
Now, arch dependent code around CONFIG_MEMORY_HOTREMOVE is a mess. This patch cleans up them. This is against 2.6.23-rc6-mm1. - fix compile failure on ia64/ CONFIG_MEMORY_HOTPLUG && !CONFIG_MEMORY_HOTREMOVE case. - For !CONFIG_MEMORY_HOTREMOVE, add generic no-op remove_memory(), which returns -EINVAL. - removed remove_pages() only used in powerpc. - removed no-op remove_memory() in i386, sh, sparc64, x86_64. - only powerpc returns -ENOSYS at memory hot remove(no-op). changes it to return -EINVAL. Note: Currently, only ia64 supports CONFIG_MEMORY_HOTREMOVE. I welcome other archs if there are requirements and testers. Signed-off-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andy Whitcroft 提交于
Enable virtual memmap support for SPARSEMEM on PPC64 systems. Slice a 16th off the end of the linear mapping space and use that to hold the vmemmap. Uses the same size mapping as uses in the linear 1:1 kernel mapping. [pbadari@gmail.com: fix warning] Signed-off-by: NAndy Whitcroft <apw@shadowen.org> Acked-by: NMel Gorman <mel@csn.ul.ie> Cc: Christoph Lameter <clameter@sgi.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: NBadari Pulavarty <pbadari@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Mike Travis 提交于
Convert cpu_sibling_map from a static array sized by NR_CPUS to a per_cpu variable. This saves sizeof(cpumask_t) * NR unused cpus. Access is mostly from startup and CPU HOTPLUG functions. Signed-off-by: NMike Travis <travis@sgi.com> Cc: Andi Kleen <ak@suse.de> Cc: Christoph Lameter <clameter@sgi.com> Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Alexey Dobriyan 提交于
Identical handlers of PTRACE_DETACH go into ptrace_request(). Not touching compat code. Not touching archs that don't call ptrace_request. Signed-off-by: NAlexey Dobriyan <adobriyan@sw.ru> Acked-by: NChristoph Hellwig <hch@infradead.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 16 10月, 2007 7 次提交
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由 Jens Axboe 提交于
This updates the ppc iommu/pci dma mappers to sg chaining. Includes further fixes from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>. Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Jens Axboe 提交于
Acked-by: NGeoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Sam Ravnborg 提交于
The variable CPPFLAGS is a wellknown variable and the usage by kbuild may result in unexpected behaviour. This patch replace use of CPPFLAGS with KBUILD_CPPFLAGS all over the tree and enabling one to use: make CPPFLAGS=... to specify additional CPP commandline options. Patch was tested on following architectures: alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k, s390 Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
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由 Sam Ravnborg 提交于
The variable AFLAGS is a wellknown variable and the usage by kbuild may result in unexpected behaviour. On top of that several people over time has asked for a way to pass in additional flags to gcc. This patch replace use of AFLAGS with KBUILD_AFLAGS all over the tree. Patch was tested on following architectures: alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k, s390 Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
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由 Michael Ellerman 提交于
msic_dcr_read() doesn't really do anything useful, just replace it with direct calls to dcr_read(). Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Michael Ellerman 提交于
With the base stored in dcr_host_t, there's no need for callers to pass the dcr_n into dcr_unmap(). In fact this removes the possibility of them passing the incorrect value, which would then be iounmap()'ed. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Michael Ellerman 提交于
Now that all users of dcr_read()/dcr_write() add the dcr_host_t.base, we can save them the trouble and do it in dcr_read()/dcr_write(). As some background to why we just went through all this jiggery-pokery, benh sayeth: Initially the goal of the dcr_read/dcr_write routines was to operate like mfdcr/mtdcr which take absolute DCR numbers. The reason is that on 4xx hardware, indirect DCR access is a pain (goes through a table of instructions) and it's useful to have the compiler resolve an absolute DCR inline. We decided that wasn't worth the API bastardisation since most places where absolute DCR values are used are low level 4xx-only code which may as well continue using mfdcr/mtdcr, while the new API is designed for device "instances" that can exist on 4xx and Axon type platforms and may be located at variable DCR offsets. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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- 15 10月, 2007 2 次提交
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由 Geert Uytterhoeven 提交于
Kill unused variables Signed-off-by: NGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Sam Ravnborg 提交于
The variable CFLAGS is a wellknown variable and the usage by kbuild may result in unexpected behaviour. On top of that several people over time has asked for a way to pass in additional flags to gcc. This patch replace use of CFLAGS with KBUILD_CFLAGS all over the tree and enabling one to use: make CFLAGS=... to specify additional gcc commandline options. One usecase is when trying to find gcc bugs but other use cases has been requested too. Patch was tested on following architectures: alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k Test was simple to do a defconfig build, apply the patch and check that nothing got rebuild. Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
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- 14 10月, 2007 2 次提交
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由 Grant Likely 提交于
There is no good reason for board platform code to mess with the ROOT_DEV. Remove it from all in-tree platforms except powermac This is a follow on to commit 745e1027. The original patch had this change to lite5200.c, but it got dropped in the psycho madness that is the 2.6.24 merge window. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 13 10月, 2007 2 次提交
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由 Kay Sievers 提交于
This changes the uevent buffer functions to use a struct instead of a long list of parameters. It does no longer require the caller to do the proper buffer termination and size accounting, which is currently wrong in some places. It fixes a known bug where parts of the uevent environment are overwritten because of wrong index calculations. Many thanks to Mathieu Desnoyers for finding bugs and improving the error handling. Signed-off-by: NKay Sievers <kay.sievers@vrfy.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Adrian Bunk 提交于
Remove the following redundant and never or rarely used kconfig syntax: - "def_boolean" (same as "def_bool") - "requires" (same as "depends on") - "depends" (same as "depends on") This patch contains the code changes and Kconfig updates. The shipped files are in next patch to let actual codechange stand out. Signed-off-by: NAdrian Bunk <bunk@kernel.org> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Bryan Wu <bryan.wu@analog.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
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- 12 10月, 2007 11 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Gibson 提交于
This adds a memchr() implementation to the bootwrapper, which will be needed when libfdt is merged in. Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Olof Johansson 提交于
Implement show_unhandled_signals sysctl + support to print when a process is killed due to unhandled signals just as i386 and x86_64 does. Default to having it off, unlike x86 that defaults on. Signed-off-by: NOlof Johansson <olof@lixom.net> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Valentine Barshak 提交于
Currently find_legacy_serial_ports() can find no serial ports on the OPB with flattened device tree. Thus no legacy boot console can be initialized. Just the early udbg console works, which is initialized with udbg_init_44x_as1 on the UART's physical address specified in kernel config. This happens because we look for ns16750 serial devices only and expect opb node to have a device type property. This patch makes it look for ns16550-compatible devices and use of_device_is_compatible() for opb in case device type is not specified. Signed-off-by: NValentine Barshak <vbarshak@ru.mvista.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Paul Mackerras 提交于
This makes the kernel use 1TB segments for all kernel mappings and for user addresses of 1TB and above, on machines which support them (currently POWER5+, POWER6 and PA6T). We detect that the machine supports 1TB segments by looking at the ibm,processor-segment-sizes property in the device tree. We don't currently use 1TB segments for user addresses < 1T, since that would effectively prevent 32-bit processes from using huge pages unless we also had a way to revert to using 256MB segments. That would be possible but would involve extra complications (such as keeping track of which segment size was used when HPTEs were inserted) and is not addressed here. Parts of this patch were originally written by Ben Herrenschmidt. Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Valentine Barshak 提交于
Add 64-bit physical address support to setup_indirect_pci(). Signed-off-by: NValentine Barshak <vbarshak@ru.mvista.com> Acked-by: NKumar Gala <galak@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Stefan Roese 提交于
Signed-off-by: NStefan Roese <sr@denx.de> Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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由 Stefan Roese 提交于
Signed-off-by: NStefan Roese <sr@denx.de> Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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由 Stefan Roese 提交于
This patch adds basic support for the new 405EX and the AMCC eval board Kilauea to arch/powerpc. Signed-off-by: NStefan Roese <sr@denx.de> Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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由 Stefan Roese 提交于
Signed-off-by: NStefan Roese <sr@denx.de> Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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由 Kumar Gala 提交于
All ppc32 systems except PReP and 8xx are capable of handling 3G of user address space. Old legacy had set this to 2GB and no one has bothered to fix it. 8xx could be bumped up to 3GB if its SW TLB miss handlers were fixed up to properly determine kernel/user addresses. Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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