- 20 10月, 2007 1 次提交
-
-
由 Mathieu Desnoyers 提交于
Quoting Randy: "It seems sad that this patch sources Kconfig.marker, a 7-line file, 20-something times. Yes, you (we) don't want to put those 7 lines into 20-something different files, so sourcing is the right thing. However, what you did for avr32 seems more on the right track to me: make _one_ Instrumentation support menu that includes PROFILING, OPROFILE, KPROBES, and MARKERS and then use (source) that in all of the arches." Signed-off-by: NMathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
- 17 10月, 2007 2 次提交
-
-
由 Robert P. J. Day 提交于
It makes more sense to make instrumentation support experimental on a case-by-case basis. Signed-off-by: NRobert P. J. Day <rpjday@mindspring.com> Cc: Andi Kleen <ak@suse.de> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 David Miller 提交于
[apw@shadowen.org: style fixups] [apw@shadowen.org: vmemmap sparc64: convert to new config options] Signed-off-by: NAndy Whitcroft <apw@shadowen.org> Acked-by: NMel Gorman <mel@csn.ul.ie> Acked-by: NChristoph Lameter <clameter@sgi.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
- 22 7月, 2007 1 次提交
-
-
由 Thomas Gleixner 提交于
i386 and sparc64 have the identical code to update the cmos clock. Move it into kernel/time/ntp.c as there are other architectures coming along with the same requirements. [akpm@linux-foundation.org: build fixes] Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: Chris Wright <chrisw@sous-sol.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: john stultz <johnstul@us.ibm.com> Cc: David Miller <davem@davemloft.net> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
- 20 7月, 2007 1 次提交
-
-
由 Stephen Rothwell 提交于
This creates drivers/of/base.c (depending on CONFIG_OF) and puts the first trivially common bits from the prom.c files into it. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Acked-by: NPaul Mackerras <paulus@samba.org> Acked-by: NDavid S. Miller <davem@davemloft.net>
-
- 18 7月, 2007 1 次提交
-
-
由 Stephen Rothwell 提交于
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 16 7月, 2007 3 次提交
-
-
由 David S. Miller 提交于
Do not select HOTPLUG_CPU from SUN_LDOMS, that causes HOTPLUG_CPU to be selected even on non-SMP which is illegal. Only build hvtramp.o when SMP, just like trampoline.o Protect dr-cpu code in ds.c with HOTPLUG_CPU. Likewise move ldom_startcpu_cpuid() to smp.c and protect it and the call site with SUN_LDOMS && HOTPLUG_CPU. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 David S. Miller 提交于
Only adding cpus is supports at the moment, removal will come next. When new cpus are configured, the machine description is updated. When we get the configure request we pass in a cpu mask of to-be-added cpus to the mdesc CPU node parser so it only fetches information for those cpus. That code also proceeds to update the SMT/multi-core scheduling bitmaps. cpu_up() does all the work and we return the status back over the DS channel. CPUs via dr-cpu need to be booted straight out of the hypervisor, and this requires: 1) A new trampoline mechanism. CPUs are booted straight out of the hypervisor with MMU disabled and running in physical addresses with no mappings installed in the TLB. The new hvtramp.S code sets up the critical cpu state, installs the locked TLB mappings for the kernel, and turns the MMU on. It then proceeds to follow the logic of the existing trampoline.S SMP cpu bringup code. 2) All calls into OBP have to be disallowed when domaining is enabled. Since cpus boot straight into the kernel from the hypervisor, OBP has no state about that cpu and therefore cannot handle being invoked on that cpu. Luckily it's only a handful of interfaces which can be called after the OBP device tree is obtained. For example, rebooting, halting, powering-off, and setting options node variables. CPU removal support will require some infrastructure changes here. Namely we'll have to process the requests via a true kernel thread instead of in a workqueue. workqueues run on a per-cpu thread, but when unconfiguring we might need to force the thread to execute on another cpu if the current cpu is the one being removed. Removal of a cpu also causes the kernel to destroy that cpu's workqueue running thread. Another issue on removal is that we may have interrupts still pointing to the cpu-to-be-removed. So new code will be needed to walk the active INO list and retarget those cpus as-needed. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 David S. Miller 提交于
Virtual devices on Sun Logical Domains are built on top of a virtual channel framework. This, with help of hypervisor interfaces, provides a link layer protocol with basic handshaking over which virtual device clients and servers communicate. Built on top of this is a VIO device protocol which has it's own handshaking and message types. At this layer attributes are exchanged (disk size, network device addresses, etc.) descriptor rings are registered, and data transfers are triggers and replied to. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 12 7月, 2007 1 次提交
-
-
由 Matthew Wilcox 提交于
The PCI syscalls are built on every architecture except X86, but only a few have ever hooked them up. Use a new Kconfig symbol to save a couple of kB on the architectures that have never used the syscalls. Tested on x86 and ia64 only. Signed-off-by: NMatthew Wilcox <matthew@wil.cx> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
-
- 05 6月, 2007 1 次提交
-
-
由 David S. Miller 提交于
The scheduling domain hierarchy is: all cpus --> cpus that share an instruction cache --> cpus that share an integer execution unit Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 29 5月, 2007 1 次提交
-
-
由 David S. Miller 提交于
Cheetah systems can have cpuids as large as 1023, although physical systems don't have that many cpus. Only three limitations existed in the kernel preventing arbitrary NR_CPUS values: 1) dcache dirty cpu state stored in page->flags on D-cache aliasing platforms. With some build time calculations and some build-time BUG checks on page->flags layout, this one was easily solved. 2) The cheetah XCALL delivery code could only handle a cpumask with up to 32 cpus set. Some simple looping logic clears that up too. 3) thread_info->cpu was a u8, easily changed to a u16. There are a few spots in the kernel that still put NR_CPUS sized arrays on the kernel stack, but that's not a sparc64 specific problem. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 12 5月, 2007 1 次提交
-
-
由 David S. Miller 提交于
Let's use SLUB, since it works now, in order to get it tested a bit. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 08 5月, 2007 1 次提交
-
-
由 David Miller 提交于
I ported this to sparc64 as per the patch below, tested on UP SunBlade1500 and 24 cpu Niagara T1000. Signed-off-by: NDavid S. Miller <davem@davemloft.net> Signed-off-by: NChristoph Lameter <clameter@sgi.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Andi Kleen <ak@suse.de> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: William Lee Irwin III <wli@holomorphy.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
- 03 5月, 2007 1 次提交
-
-
由 Dan Williams 提交于
Allows architectures to advertise that they support MSI rather than listing each architecture as a PCI_MSI dependency. Signed-off-by: NDan Williams <dan.j.williams@intel.com> Acked-by: N"Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
-
- 26 4月, 2007 2 次提交
-
-
由 David S. Miller 提交于
Decrease the SECTION_SIZE_BITS --> MAX_PHYSADDR_BITS range a little bit. The cost of going to SPARSEMEM_STATIC becomes 8K of BSS space, and in return we save a pointer dereferences on every page struct lookup. Even better we hit the main kernel image for the base address which is in a hugepage locked TLB entry. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 David S. Miller 提交于
I'd like to thank John Stul and others for helping me along the way. A lot of cleanups fell out of this. For example, the get_compare() tick_op was totally unused, so was deleted. And the most often used tick_op members were grouped together for cache-friendlyness. The sparc64 TSC is given to the kernel as a one-shot timer. tick_ops->init_timer() simply turns off the privileged bit in the tick register (when possible), and disables the interrupt by setting bit 63 in the compare register. The ->disable_irq() op also sets this bit. tick_ops->add_compare() is changed to: 1) Add the given delta to "tick" not to "compare" 2) Return a boolean which, if true, means that the tick value read after writing the compare value was found to have incremented past the initial tick value. This mirrors logic used in the HPET driver's ->next_event() method. Each tick_ops implementation also now provides a name string. And we feed this into the clocksource and clockevents layers. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 18 3月, 2007 1 次提交
-
-
由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 13 2月, 2007 1 次提交
-
-
由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 12 2月, 2007 1 次提交
-
-
由 Christoph Lameter 提交于
As Andi pointed out: CONFIG_GENERIC_ISA_DMA only disables the ISA DMA channel management. Other functionality may still expect GFP_DMA to provide memory below 16M. So we need to make sure that CONFIG_ZONE_DMA is set independent of CONFIG_GENERIC_ISA_DMA. Undo the modifications to mm/Kconfig where we made ZONE_DMA dependent on GENERIC_ISA_DMA and set theses explicitly in each arches Kconfig. Reviews must occur for each arch in order to determine if ZONE_DMA can be switched off. It can only be switched off if we know that all devices supported by a platform are capable of performing DMA transfers to all of memory (Some arches already support this: uml, avr32, sh sh64, parisc and IA64/Altix). In order to switch ZONE_DMA off conditionally, one would have to establish a scheme by which one can assure that no drivers are enabled that are only capable of doing I/O to a part of memory, or one needs to provide an alternate means of performing an allocation from a specific range of memory (like provided by alloc_pages_range()) and insure that all drivers use that call. In that case the arches alloc_dma_coherent() may need to be modified to call alloc_pages_range() instead of relying on GFP_DMA. Signed-off-by: NChristoph Lameter <clameter@sgi.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
- 10 12月, 2006 1 次提交
-
-
由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 09 12月, 2006 1 次提交
-
-
由 David Howells 提交于
This facility provides three entry points: ilog2() Log base 2 of unsigned long ilog2_u32() Log base 2 of u32 ilog2_u64() Log base 2 of u64 These facilities can either be used inside functions on dynamic data: int do_something(long q) { ...; y = ilog2(x) ...; } Or can be used to statically initialise global variables with constant values: unsigned n = ilog2(27); When performing static initialisation, the compiler will report "error: initializer element is not constant" if asked to take a log of zero or of something not reducible to a constant. They treat negative numbers as unsigned. When not dealing with a constant, they fall back to using fls() which permits them to use arch-specific log calculation instructions - such as BSR on x86/x86_64 or SCAN on FRV - if available. [akpm@osdl.org: MMC fix] Signed-off-by: NDavid Howells <dhowells@redhat.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: David Howells <dhowells@redhat.com> Cc: Wojtek Kaniewski <wojtekka@toxygen.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
-
- 02 10月, 2006 1 次提交
-
-
In an effort to make kprobe modules more portable, here is a patch that: o Introduces the "symbol_name" field to struct kprobe. The symbol->address resolution now happens in the kernel in an architecture agnostic manner. 64-bit powerpc users no longer have to specify the ".symbols" o Introduces the "offset" field to struct kprobe to allow a user to specify an offset into a symbol. o The legacy mechanism of specifying the kprobe.addr is still supported. However, if both the kprobe.addr and kprobe.symbol_name are specified, probe registration fails with an -EINVAL. o The symbol resolution code uses kallsyms_lookup_name(). So CONFIG_KPROBES now depends on CONFIG_KALLSYMS o Apparantly kprobe modules were the only legitimate out-of-tree user of the kallsyms_lookup_name() EXPORT. Now that the symbol resolution happens in-kernel, remove the EXPORT as suggested by Christoph Hellwig o Modify tcp_probe.c that uses the kprobe interface so as to make it work on multiple platforms (in its earlier form, the code wouldn't work, say, on powerpc) Signed-off-by: NAnanth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: NPrasanna S Panchamukhi <prasanna@in.ibm.com> Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
-
- 12 9月, 2006 1 次提交
-
-
由 Al Viro 提交于
... that should do it for all targets; the only remaining issues are mips (currently treated as non-biarch) and handling of other OS emulations (OSF/SunOS/Solaris/???). The latter would need to be assigned new AUDIT_ARCH_... ABI numbers anyway... Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
-
- 11 7月, 2006 1 次提交
-
-
由 Christoph Hellwig 提交于
Currently most architectures either always build binfmt_elf32 in the kernel image or make it a boolean option. Only sparc64 and s390 allow to build it modularly. This patch turns the option into a boolean aswell because elf requires various symbols that shouldn't be available to modules. The most urgent one is tasklist_lock whos export this patch series kills, but there are others like force_sgi aswell. Note that sparc doesn't allow a modular 32bit a.out handler either, and that would be the more useful case as only few people want 32bit sunos compatibility and 99.9% of all sparc64 users need 32bit linux native elf support. Signed-off-by: NChristoph Hellwig <hch@lst.de> Acked-by: N"David S. Miller" <davem@davemloft.net> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
-
- 20 6月, 2006 1 次提交
-
-
由 David S. Miller 提交于
This is the long overdue conversion of sparc64 over to the generic IRQ layer. The kernel image is slightly larger, but the BSS is ~60K smaller due to the reduced size of struct ino_bucket. A lot of IRQ implementation details, including ino_bucket, were moved out of asm-sparc64/irq.h and are now private to arch/sparc64/kernel/irq.c, and most of the code in irq.c totally disappeared. One thing that's different at the moment is IRQ distribution, we do it at enable_irq() time. If the cpu mask is ALL then we round-robin using a global rotating cpu counter, else we pick the first cpu in the mask to support single cpu targetting. This is similar to what powerpc's XICS IRQ support code does. This works fine on my UP SB1000, and the SMP build goes fine and runs on that machine, but lots of testing on different setups is needed. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 19 4月, 2006 1 次提交
-
-
由 Jean-Luc Léger 提交于
This patch fixes dependencies of HUGETLB_PAGE_SIZE_64K Signed-off-by: NJean-Luc Lger <jean-luc.leger@dspnet.fr.eu.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 10 4月, 2006 1 次提交
-
-
由 David S. Miller 提交于
Otherwise the build breaks with EXPERIMENTAL disabled because SPARSEMEM will not get selected properly. See mm/Kconfig for how that works. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 27 3月, 2006 1 次提交
-
-
由 Akinobu Mita 提交于
- remove __{,test_and_}{set,clear,change}_bit() and test_bit() - remove ffz() - remove __ffs() - remove generic_fls() - remove generic_fls64() - remove sched_find_first_bit() - remove ffs() - unless defined(ULTRA_HAS_POPULATION_COUNT) - remove generic_hweight{64,32,16,8}() - remove find_{next,first}{,_zero}_bit() - remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit() - remove minix_{test,set,test_and_clear,test,find_first_zero}_bit() Signed-off-by: NAkinobu Mita <mita@miraclelinux.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
-
- 22 3月, 2006 1 次提交
-
-
由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 20 3月, 2006 3 次提交
-
-
由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 David S. Miller 提交于
The mapping is a simple "(cpuid >> 2) == core" for now. Later we'll add more sophisticated code that will walk the sun4v machine description and figure this out from there. We should also add core mappings for jaguar and panther processors. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 David S. Miller 提交于
This has been pending for a long time, and the fact that we waste a ton of ram on some configurations kind of pushed things over the edge. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 27 2月, 2006 1 次提交
-
-
由 Linus Torvalds 提交于
Commit 9ec4b1f3 made kprobes not compile without module support, so just make that clear in the Kconfig file. Also, since it's marked EXPERIMENTAL, make that dependency explicit too. Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
-
- 12 1月, 2006 1 次提交
-
-
由 Adrian Bunk 提交于
This patch fixes a typo in the dependencies of HUGETLB_PAGE_SIZE_64K. It might be more logical to rename the HUGETLB_PAGE_SIZE_*K dependencies to HUGETLB_PAGE_SIZE_*KB, but let's fix this bug first. This bug was reported by Jean-Luc Leger <reiga@dspnet.fr.eu.org>. Signed-off-by: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 09 1月, 2006 1 次提交
-
-
由 Matt Mackall 提交于
Configurable 16-bit UID and friends support This allows turning off the legacy 16 bit UID interfaces on embedded platforms. text data bss dec hex filename 3330172 529036 190556 4049764 3dcb64 vmlinux-baseline 3328268 529040 190556 4047864 3dc3f8 vmlinux From: Adrian Bunk <bunk@stusta.de> UID16 was accidentially disabled for !EMBEDDED. Signed-off-by: NMatt Mackall <mpm@selenic.com> Signed-off-by: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
-
- 23 12月, 2005 1 次提交
-
-
由 Adrian Bunk 提交于
Introduce a Kconfig symbol SPARC that is defined on both the sparc and sparc64 architectures. This symbol makes some dependencies more readable. Signed-off-by: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 07 11月, 2005 1 次提交
-
-
由 Prasanna S Panchamukhi 提交于
Andrew Morton suggested to move kprobes from kernel hacking menu, since kernel hacking menu is in-appropriate for the Kprobes. This patch moves Kprobes and Oprofile under instrumentation menu. (akpm: it's not a natural fit, but things like djprobes and the s390 guys' statistics library need a home) Signed-of-by: NPrasanna S Panchamukhi <prasanna@in.ibm.com> Cc: Philippe Elie <phil.el@wanadoo.fr> Cc: John Levon <levon@movementarian.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
-
- 08 9月, 2005 1 次提交
-
-
由 viro@ZenIV.linux.org.uk 提交于
Sanitized and fixed floppy dependencies: split the messy dependencies for BLK_DEV_FD by introducing a new symbol (ARCH_MAY_HAVE_PC_FDC), making BLK_DEV_FD depend on that one and taking declarations of ARCH_MAY_HAVE_PC_FDC to arch/*/Kconfig. While we are at it, fixed several obvious cases when BLK_DEV_FD should have been excluded (architectures lacking asm/floppy.h are *not* going to have floppy.c compile, let alone work). If you can come up with better name for that ("this architecture might have working PC-compatible floppy disk controller"), you are more than welcome - just s/ARCH_MAY_HAVE_PC_FDC/your_prefered_name/g in the patch below... Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
-
- 06 9月, 2005 1 次提交
-
-
由 David S. Miller 提交于
It's really not relevant for this platform in any way, after all. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-