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* [PATCH] genirq: add IRQ_NOPROBE supportThomas Gleixner2006-06-293-2/+7
| | | | | | | | | Introduce IRQ_NOPROBE: enables platforms to control chip-probing. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: add genirq sw IRQ-retriggerThomas Gleixner2006-06-294-10/+83
| | | | | | | | | | Enable platforms that do not have a hardware-assisted hardirq-resend mechanism to resend them via a softirq-driven IRQ emulation mechanism. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: doc: add design documentationThomas Gleixner2006-06-292-1/+476
| | | | | | | | | Add docbook file - includes API documentation. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: cleanup: no_irq_type cleanupsIngo Molnar2006-06-291-20/+25
| | | | | | | | | | Clean up no_irq_type: share the NOP functions where possible, and properly name the ack_bad() function. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: doc: handle_IRQ_event() and __do_IRQ() commentsIngo Molnar2006-06-291-4/+16
| | | | | | | | | Document handle_IRQ_event() and __do_IRQ(). Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: doc: comment include/linux/irq.h structuresIngo Molnar2006-06-291-7/+37
| | | | | | | | | Better document the hw_interrupt_type and irq_desc structures. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: add ->retrigger() irq op to consolidate hw_irq_resend()Ingo Molnar2006-06-2921-74/+45
| | | | | | | | | | | | Add ->retrigger() irq op to consolidate hw_irq_resend() implementations. (Most architectures had it defined to NOP anyway.) NOTE: ia64 needs testing. i386 and x86_64 tested. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: debug: better debug printout in enable_irq()Thomas Gleixner2006-06-291-0/+1
| | | | | | | | | Make enable_irq() debug printouts user-readable. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: cleanup: turn ARCH_HAS_IRQ_PER_CPU into CONFIG_IRQ_PER_CPUIngo Molnar2006-06-2912-29/+24
| | | | | | | | | Cleanup: change ARCH_HAS_IRQ_PER_CPU into a Kconfig method. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: cleanup: merge pending_irq_cpumask[] into irq_desc[]Ingo Molnar2006-06-294-10/+6
| | | | | | | | | | Consolidation: remove the pending_irq_cpumask[NR_IRQS] array and move it into the irq_desc[NR_IRQS].pending_mask field. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: cleanup: merge irq_dir[], smp_affinity_entry[] into irq_desc[]Ingo Molnar2006-06-292-13/+12
| | | | | | | | | | Consolidation: remove the irq_dir[NR_IRQS] and the smp_affinity_entry[NR_IRQS] arrays and move them into the irq_desc[] array. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: cleanup: include/linux/irq.hIngo Molnar2006-06-291-28/+28
| | | | | | | | | Small cleanups in include/linux/irq.h. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: cleanup: reduce irq_desc_t use, mark it obsoleteIngo Molnar2006-06-296-19/+28
| | | | | | | | | | Cleanup: remove irq_desc_t use from the generic IRQ code, and mark it obsolete. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: cleanup: misc code cleanupsIngo Molnar2006-06-295-60/+66
| | | | | | | | | Assorted code cleanups to the generic IRQ code. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: cleanup: remove fastcallIngo Molnar2006-06-292-5/+9
| | | | | | | | | | Now that i386 defaults to regparm, explicit uses of fastcall are not needed anymore. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: cleanup: remove irq_descp()Ingo Molnar2006-06-299-23/+16
| | | | | | | | | | Cleanup: remove irq_descp() - explicit use of irq_desc[] is shorter and more readable. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: cleanup: merge irq_affinity[] into irq_desc[]Ingo Molnar2006-06-2914-24/+26
| | | | | | | | | | | Consolidation: remove the irq_affinity[NR_IRQS] array and move it into the irq_desc[NR_IRQS].affinity field. [akpm@osdl.org: sparc64 build fix] Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: sem2mutex probe_sem -> probing_activeIngo Molnar2006-06-291-4/+5
| | | | | | | | | | Convert the irq auto-probing semaphore to a mutex. (This allows us to find probing API usage bugs sooner, via the mutex debugging code.) Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: rename desc->handler to desc->chipIngo Molnar2006-06-29151-380/+384
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch-queue improves the generic IRQ layer to be truly generic, by adding various abstractions and features to it, without impacting existing functionality. While the queue can be best described as "fix and improve everything in the generic IRQ layer that we could think of", and thus it consists of many smaller features and lots of cleanups, the one feature that stands out most is the new 'irq chip' abstraction. The irq-chip abstraction is about describing and coding and IRQ controller driver by mapping its raw hardware capabilities [and quirks, if needed] in a straightforward way, without having to think about "IRQ flow" (level/edge/etc.) type of details. This stands in contrast with the current 'irq-type' model of genirq architectures, which 'mixes' raw hardware capabilities with 'flow' details. The patchset supports both types of irq controller designs at once, and converts i386 and x86_64 to the new irq-chip design. As a bonus side-effect of the irq-chip approach, chained interrupt controllers (master/slave PIC constructs, etc.) are now supported by design as well. The end result of this patchset intends to be simpler architecture-level code and more consolidation between architectures. We reused many bits of code and many concepts from Russell King's ARM IRQ layer, the merging of which was one of the motivations for this patchset. This patch: rename desc->handler to desc->chip. Originally i did not want to do this, because it's a big patch. But having both "desc->handler", "desc->handle_irq" and "action->handler" caused a large degree of confusion and made the code appear alot less clean than it truly is. I have also attempted a dual approach as well by introducing a desc->chip alias - but that just wasnt robust enough and broke frequently. So lets get over with this quickly. The conversion was done automatically via scripts and converts all the code in the kernel. This renaming patch is the first one amongst the patches, so that the remaining patches can stay flexible and can be merged and split up without having some big monolithic patch act as a merge barrier. [akpm@osdl.org: build fix] [akpm@osdl.org: another build fix] Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] drivers/md/raid5.c: remove an unused variableAdrian Bunk2006-06-291-1/+0
| | | | | | Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] SKB leak in drivers/isdn/i4l/isdn_x25iface.cEric Sesterhenn2006-06-291-1/+3
| | | | | | | | | | Coverity spotted this leak (id #613), when we are not configured, we return without freeing the allocated skb. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Acked-by: Karsten Keil <kkeil@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i4l: remove unneeded include/linux/isdn/tpam.hKarsten Keil2006-06-291-55/+0
| | | | | | | | | The TPAM isdn driver was removed in 2.6.12, but include/linux/isdn/tpam.h was missed. Signed-off-by: Karsten Keil <kkeil@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] GPIO for SCx200 & PC-8736x: x86-onlyDave Jones2006-06-291-0/+1
| | | | | | | | | | AFAICT, this is x86 only, so the patch below is needed to stop this new option showing up on PPC, IA64, etc.. Signed-off-by: Dave Jones <davej@redhat.com> Cc: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Deref in drivers/block/paride/pf.cEric Sesterhenn2006-06-291-1/+1
| | | | | | | | | | Another possible dereference detected by coverity (id #759). pf_probe() might call pf_identify() which might call get_capacity() which dereferences pf->disk Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] remove devinit from ioc4 pci_driverDave Jones2006-06-291-1/+1
| | | | | | | | | | | | | | | | | Documention/pci.txt states.. "The struct pci_driver shouldn't be marked with any of these tags." (Referring to __devinit and friends). (akpm: good documentation, that. Link this driver into vmlinux with hotplug CPU disabled and it'll crash). Signed-off-by: Dave Jones <davej@redhat.com> Cc: Brent Casavant <bcasavan@sgi.com> Cc: Pat Gefre <pfg@sgi.com> Cc: Jes Sorensen <jes@sgi.com> Cc: Tony Luck <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] re-add CONFIG_SOUND_SSCAPEAdrian Bunk2006-06-291-0/+13
| | | | | | | | | Due to a regression in the correcponding ALSA driver (ALSA #2234), the OSS driver should stay until it's fixed. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] arch/i386/mach-visws/setup.c: remove dummy function callsAdrian Bunk2006-06-291-4/+0
| | | | | | | | | | Thankfully, these dummy function calls are no longer required to avoid warnings - if they weren't eliminated as dead code but accidentially executed there would be a guaranteed NULL dereference. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ufs: printk() fixAndrew Morton2006-06-291-2/+4
| | | | | | | | | | | fs/ufs/inode.c: In function `ufs_frag_map': fs/ufs/inode.c:101: warning: long long unsigned int format, u64 arg (arg 4) fs/ufs/inode.c: In function `ufs_getfrag_block': fs/ufs/inode.c:432: warning: long long unsigned int format, u64 arg (arg 2) Cc: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Keys: Allow in-kernel key requestor to pass auxiliary data to upcallerDavid Howells2006-06-296-30/+108
| | | | | | | | | | | | | | | | The proposed NFS key type uses its own method of passing key requests to userspace (upcalling) rather than invoking /sbin/request-key. This is because the responsible userspace daemon should already be running and will be contacted through rpc_pipefs. This patch permits the NFS filesystem to pass auxiliary data to the upcall operation (struct key_type::request_key) so that the upcaller can use a pre-existing communications channel more easily. Signed-off-by: David Howells <dhowells@redhat.com> Acked-By: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] sparc: register_cpu() build fixAndrew Morton2006-06-291-1/+1
| | | | | | | | | arch/sparc/kernel/setup.c: In function 'topology_init': arch/sparc/kernel/setup.c:528: error: too many arguments to function 'register_cpu' Cc: William Lee Irwin III <wli@holomorphy.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] solve config broken: undefined reference to `online_page'Yasunori Goto2006-06-295-1/+12
| | | | | | | | | | | | | | Memory hotplug code of i386 adds memory to only highmem. So, if CONFIG_HIGHMEM is not set, CONFIG_MEMORY_HOTPLUG shouldn't be set. Otherwise, it causes compile error. In addition, many architecture can't use memory hotplug feature yet. So, I introduce CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG. Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] generic_file_buffered_write(): handle zero-length iovec segmentsAndrew Morton2006-06-292-3/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The recent generic_file_write() deadlock fix caused generic_file_buffered_write() to loop inifinitely when presented with a zero-length iovec segment. Fix. Note that this fix deliberately avoids calling ->prepare_write(), ->commit_write() etc with a zero-length write. This is because I don't trust all filesystems to get that right. This is a cautious approach, for 2.6.17.x. For 2.6.18 we should just go ahead and call ->prepare_write() and ->commit_write() with the zero length and fix any broken filesystems. So I'll make that change once this code is stabilised and backported into 2.6.17.x. The reason for preferring to call ->prepare_write() and ->commit_write() with the zero-length segment: a zero-length segment _should_ be sufficiently uncommon that this is the correct way of handling it. We don't want to optimise for poorly-written userspace at the expense of well-written userspace. Cc: "Vladimir V. Saveliev" <vs@namesys.com> Cc: Neil Brown <neilb@suse.de> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Chris Wright <chrisw@sous-sol.org> Cc: Greg KH <greg@kroah.com> Cc: <stable@kernel.org> Cc: walt <wa1ter@myrealbox.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fix sgivwfb compileAdrian Bunk2006-06-293-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | drivers/built-in.o: In function `sgivwfb_set_par': sgivwfb.c:(.text+0x88583): undefined reference to `sgivwfb_mem_phys' sgivwfb.c:(.text+0x88596): undefined reference to `sgivwfb_mem_phys' sgivwfb.c:(.text+0x885a8): undefined reference to `sgivwfb_mem_phys' drivers/built-in.o: In function `sgivwfb_check_var': sgivwfb.c:(.text+0x88ad0): undefined reference to `sgivwfb_mem_size' drivers/built-in.o: In function `sgivwfb_mmap': sgivwfb.c:(.text+0x88c75): undefined reference to `sgivwfb_mem_size' sgivwfb.c:(.text+0x88c7f): undefined reference to `sgivwfb_mem_phys' drivers/built-in.o: In function `sgivwfb_probe': sgivwfb.c:(.init.text+0x4060): undefined reference to `sgivwfb_mem_size' sgivwfb.c:(.init.text+0x4065): undefined reference to `sgivwfb_mem_phys' sgivwfb.c:(.init.text+0x4076): undefined reference to `sgivwfb_mem_phys' sgivwfb.c:(.init.text+0x409c): undefined reference to `sgivwfb_mem_size' sgivwfb.c:(.init.text+0x410e): undefined reference to `sgivwfb_mem_size' sgivwfb.c:(.init.text+0x4113): undefined reference to `sgivwfb_mem_phys' sgivwfb.c:(.init.text+0x4162): undefined reference to `sgivwfb_mem_size' sgivwfb.c:(.init.text+0x4168): undefined reference to `sgivwfb_mem_phys' make: *** [.tmp_vmlinux1] Error 1 Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Fix vsnprintf off-by-one bugLinus Torvalds2006-06-281-1/+1
| | | | | | | | | | | | | | | The recent vsnprintf() fix introduced an off-by-one, and it's now possible to overrun the target buffer by one byte. The "end" pointer points to past the end of the buffer, so if we have to truncate the result, it needs to be done though "end[-1]". [ This is just an alternate and simpler patch to one proposed by Andrew and Jeremy, who actually noticed the problem ] Acked-by: Andrew Morton <akpm@osdl.org> Acked-by: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'nommu' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2006-06-2837-172/+675
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'nommu' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] nommu: backtrace code must not reference a discarded section [ARM] nommu: Initial uCLinux support for MMU-based CPUs [ARM] nommu: prevent Xscale-based machines being selected [ARM] nommu: export flush_dcache_page() [ARM] nommu: remove fault-armv, mmap and mm-armv files from nommu build [ARM] Remove TABLE_SIZE, and several unused function prototypes [ARM] nommu: Provide a simple flush_dcache_page implementation [ARM] nommu: add arch/arm/Kconfig-nommu to Kconfig files [ARM] nommu: add stubs for ioremap and friends [ARM] nommu: avoid selecting TLB and CPU specific copy code [ARM] nommu: uaccess tweaks [ARM] nommu: adjust headers for !MMU ARM systems [ARM] nommu: we need the TLS register emulation for nommu mode
| * [ARM] nommu: backtrace code must not reference a discarded sectionRussell King2006-06-281-4/+1
| | | | | | | | | | | | | | | | | | The code in "1007:" is in the .fixup section, which in the mmuless case is discarded. Since this code is referenced from the .text section, it causes an link error. Move this code into the .text section instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] nommu: Initial uCLinux support for MMU-based CPUsHyok S. Choi2006-06-2813-0/+129
| | | | | | | | | | | | | | | | | | | | In noMMU mode, various of functions which are defined in mm/proc-*.S is not valid or needed to be avoided. i.g. switch_mm is not needed, just returns and this makes the I & D caches are valid which shows great improvement of performance including task switching and IPC. Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] nommu: prevent Xscale-based machines being selectedRussell King2006-06-281-0/+5
| | | | | | | | | | | | | | | | | | Hyok says Intel Xscale is not currently supported by uCLinux. Rather than adding #error statements to the Xscale support files and causing !MMU+Xscale configurations to fail to build, prevent Xscale-based machines from being selected in !MMU mode. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] nommu: export flush_dcache_page()Hyok S. Choi2006-06-281-0/+1
| | | | | | | | | | | | | | This is a trivial patch to export flush_dcache_page in mm/nommu.c. Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] nommu: remove fault-armv, mmap and mm-armv files from nommu buildRussell King2006-06-282-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove fault-armv.o, mmap.o and mm-armv.o from uclinux builds - these are concerned with MMU-ful operations, and as such are redundant for uclinux. Since this also removes iotable_init() and iotable_init() is used extensively in the platform support files, just make it a no-op. Based upon a couple of patches by Hyok. Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] Remove TABLE_SIZE, and several unused function prototypesRussell King2006-06-282-7/+0
| | | | | | | | | | | | | | TABLE_SIZE is never used in arch/arm/mm/init.c. create_memmap_holes(), memtable_init, and setup_io_desc() no longer exist in the kernel. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] nommu: Provide a simple flush_dcache_page implementationRussell King2006-06-282-2/+10
| | | | | | | | | | | | | | | | nommu doesn't require a complex flush_dcache_page implementation like the MMU-ful CPUs do, so provide a simplified version in nommu.c and omit flush.c from the build as appropriate. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] nommu: add arch/arm/Kconfig-nommu to Kconfig filesHyok S. Choi2006-06-281-0/+4
| | | | | | | | | | | | | | | | | | Include Kconfig-nommu when MMU is not selected. (This is part of a patch from Hyok.) Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] nommu: add stubs for ioremap and friendsRussell King2006-06-284-48/+92
| | | | | | | | | | | | | | | | | | | | | | nommu doesn't have any form of remapping support, so ioremap, etc become stubs which just return the casted address, doing nothing else. Move ioport_map(), ioport_unmap(), pci_iomap(), pci_iounmap() into a separate file which is always built. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] nommu: avoid selecting TLB and CPU specific copy codeHyok S. Choi2006-06-281-29/+32
| | | | | | | | | | | | | | | | | | | | | | Since uclinux doesn't make use of the TLB, including the TLB maintainence and CPU-optimised copypage functions does not make sense. Remove them. (This is part of one of Hyok's patches.) Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] nommu: uaccess tweaksRussell King2006-06-284-59/+108
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MMUless systems have only one address space for all threads, so both the usual access_ok() checks, and the exception handling do not make much sense. Hence, discard the fixup and exception tables at link time, use memcpy/memset for the user copy/clearing functions, and define the permission check macros to be constants. Some of this patch was derived from the equivalent patch by Hyok S. Choi. Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] nommu: adjust headers for !MMU ARM systemsRussell King2006-06-2811-21/+287
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Majorily based on Hyok Choi's patches, this fixes up the asm-arm header files for mmuless systems. Over and above Hyok's patches: - nommu.h merged into mmu.h (it's only a structure) - nommu_context.h is essentially the same as mmu_context.h, but without the MM switching code. so there's no point having separate files. Also, in memory.h, there's no point #ifndef'ing PHYS_OFFSET and END_MEM - both CONFIG_DRAM_BASE and CONFIG_DRAM_SIZE will always be set by the configuration scripts. Other files have minor formatting changes, but are essentially the same. Hyok's original patches were signed off thusly: Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] nommu: we need the TLS register emulation for nommu modeRussell King2006-06-281-3/+3
| | | | | | | | | | | | | | | | | | | | | | Since there can be no fixed location for the TLS value with nommu systems, we must provide TLS register emulation in order to support TLS binaries on CPUs without the thread register. Part of a patch from Hyok S. Choi, and cleaned up by rmk. Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2006-06-2836-86/+641
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 3672/1: PXA: don't probe output GPIOs for interrupt [ARM] 3671/1: ep93xx: add cirrus logic edb9315 support [ARM] 3370/2: ep93xx: add crunch support [ARM] 3665/1: crunch: add ptrace support [ARM] 3664/1: crunch: add signal frame save/restore [ARM] 3663/1: fix resource->end off-by-one thinko during physmap conversion [ARM] 3662/1: ixp23xx: don't include asm/hardware.h in uncompress.h [ARM] 3660/1: Remove legacy defines [ARM] 3661/1: S3C2412: Fix compilation if CPU_S3C2410 only [ARM] 3658/1: S3C244X: Change usb-gadget name to s3c2440-usbgadget [ARM] Remove the __arch_* layer from uaccess.h
| * | [ARM] 3672/1: PXA: don't probe output GPIOs for interruptGuennadi Liakhovetski2006-06-281-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Guennadi Liakhovetski Currently probe_irq_on() on PXA will silently reconfigure all output GPIOs, that are not configured as alternate functions, for input. Avoid that. Upon CPU reset all GPIOs are configured as inputs, so, if a GPIO is configured as output, it has been done so intentionally. Signed-off-by: G. Liakhovetski <gl@dsa-ac.de> Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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