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* Merge branch 'for-linus' of git://github.com/gregungerer/m68knommuLinus Torvalds2011-10-2535-3208/+2596
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://github.com/gregungerer/m68knommu: m68k: drop unused Kconfig symbols m68k: drop unused Kconfig symbols m68knommu: create common externs for _ram* vars m68knommu: remove extern declarations of memory_start/memory_end from mm/init m68knommu: use generic section names in mm/init code m68knommu: use generic section names in setup code m68k: merge the mmu and non-mmu traps.c files m68k: move hardware vector setting from traps.c to its own file m68k: merge mmu and non-mmu include/asm/entry.h files m68k: merge the mmu and non-mmu kernel/Makefiles m68k: merge mmu and non-mmu arch Makefiles m68k: reorganize Kconfig options to improve mmu/non-mmu selections m68knommu: fix problems with SPI/GPIO on ColdFire 520x m68k: fix memcpy to unmatched/unaligned source and dest on 68000
| * m68k: drop unused Kconfig symbolsPaul Bolle2011-10-211-23/+1
| | | | | | | | | | | | Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * m68k: drop unused Kconfig symbolsPaul Bolle2011-10-212-70/+1
| | | | | | | | | | | | Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * m68knommu: create common externs for _ram* varsGreg Ungerer2011-10-183-3/+3
| | | | | | | | | | | | | | Create common extern definitions of _rambase, _ramstart and _ramend instead of them being externed when used in code. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * m68knommu: remove extern declarations of memory_start/memory_end from mm/initGreg Ungerer2011-10-181-3/+0
| | | | | | | | | | | | | | We do not need to have local extern declarations of memory_start and memory_end in mm/init_no.c. There are declarations already in asm/page_no.h. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * m68knommu: use generic section names in mm/init codeGreg Ungerer2011-10-181-9/+8
| | | | | | | | | | | | | | | | We should be including and using sections.h to get at the extern definitions of the linker sections in the m68knommu mm init code. Not defining them locally. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * m68knommu: use generic section names in setup codeGreg Ungerer2011-10-182-1/+3
| | | | | | | | | | | | | | | | We should be including and using sections.h to get at the extern definitions of the linker sections in the m68knommu startup code. Not defining them locally. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * m68k: merge the mmu and non-mmu traps.c filesGreg Ungerer2011-10-184-1456/+1111
| | | | | | | | | | | | | | | | | | | | | | | | | | The code for handling traps in the non-mmu case is a subset of the mmu enabled case. Merge the non-mmu traps_no.c code back to a single traps.c. There is actually no code mmu specific here at all, and the processor specific code (for the more complex 68020/68030/68040/68060) is already proplerly conditionaly used. The format of console exception dump is a little different, but I don't think will cause any one problems, it is purely for debug purposes. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * m68k: move hardware vector setting from traps.c to its own fileGreg Ungerer2011-10-183-116/+146
| | | | | | | | | | | | | | | | | | | | | | | | Most of the trap.c code is general to all m68k arch members. But the code it currently contains to set the hardware vector table is quite specific to the 680x0 family. They can have the vector table at any address unlike other family members (which either support only a single fixed address, or a limited range of addresses). So lets move that code out to a new file, vectors.c. This will make sharing the rest of the trap.c code easier and cleaner. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * m68k: merge mmu and non-mmu include/asm/entry.h filesGreg Ungerer2011-10-187-330/+268
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The changes in the mmu version of entry.h (entry_mm.h) and the non-mmu version (entry_no.h) are not about the presence or use of an MMU at all. The main changes are to support the ColdFire processors. The code for trap entry and exit for all types of 68k processor outside coldfire is the same. So merge the files back to a single entry.h and share the common 68k entry/exit code. Some changes are required for the non-mmu entry handlers to adopt the differing macros for system call and interrupt entry, but this is quite strait forward. The changes for the ColdFire remove a couple of instructions for the separate a7 register case, and are no worse for the older single a7 register case. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * m68k: merge the mmu and non-mmu kernel/MakefilesGreg Ungerer2011-10-183-31/+20
| | | | | | | | | | | | | | | | | | The few differences between the mmu and non-mmu kernel/Makefiles can easily be handled inside of a single Makefile. Merge the 2 back into a single Makefile. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Sam Ravnborg <sam@ravnborg.org>
| * m68k: merge mmu and non-mmu arch MakefilesGreg Ungerer2011-10-185-250/+174
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most of the build logic is the same for the mmu and non-mmu m68k targets. Merge the top level architecture Makefiles back into a single Makefile. For the most part this is just adding the non-mmu processor types and their specific cflags and other options into the mmu Makefile. Note that all the BOARD setting logic that was in the non-mmu Makefile is completely removed. It was no longer being used at all. This has been build and run tested on ColdFire targets and ARAnyM. It has been build tested on all the m68k defconfig targets using a gcc-4.5.1 based toolchain. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Sam Ravnborg <sam@ravnborg.org>
| * m68k: reorganize Kconfig options to improve mmu/non-mmu selectionsGreg Ungerer2011-10-186-916/+888
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current mmu and non-mmu Kconfig files can be merged to form a more general selection of options. The current break up of options is due to the simple brute force merge from the m68k and m68knommu arch directories. Many of the options are not at all specific to having the MMU enabled or not. They are actually associated with a particular CPU type or platform type. Ultimately as we support all processors with the MMU disabled we need many of these options to be selectable without the MMU option enabled. And likewise some of the ColdFire processors, which currently are only supported with the MMU disabled, do have MMU hardware, and will need to have options selected on CPU type, not MMU disabled. This patch removes the old mmu and non-mmu Kconfigs and instead breaks up the configuration into four areas: cpu, machine, bus, devices. The Kconfig.cpu lists all the options associated with selecting a CPU, and includes options specific to each CPU type as well. Kconfig.machine lists all options associated with selecting a machine type. Almost always the machines selectable is restricted by the chosen CPU. Kconfig.bus contains options associated with selecting bus types on the various machine types. That includes PCI bus, PCMCIA bus, etc. Kconfig.devices contains options for drivers and driver associated options. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * m68knommu: fix problems with SPI/GPIO on ColdFire 520xPeter Turczak2011-10-184-63/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The problem has its root in the calculation of the set-port offsets (macro MCFGPIO_SETR() in arch/m68k/include/asm/gpio.h), this assumes that all ports have the same offset from the base port address (MCFGPIO_SETR) which is defined in mcf520xsim.h as an alias of MCFGIO_PSETR_BUSCTL. Because the BUSCTL and BE port do not have a set-register (see MCF5208 Reference Manual Page 13-10, Table 13-3) the offset calculations went wrong. Because the BE and BUSCTL port do not seem useful in these parts, as they lack a set register, I removed them and adapted the gpio chip bases which are also used for the offset-calculations. Now both setting and resetting the chip selects works as expected from userland and from the kernelspace. Signed-off-by: Peter Turczak <peter@turczak.de> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * m68k: fix memcpy to unmatched/unaligned source and dest on 68000Greg Ungerer2011-10-181-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The original 68000 processors cannot copy 16bit or larger quantities from odd addresses. All newer members of the 68k family (including ColdFire) can do this. In the current memcpy implementation after trying to align the destination address to a 16bit boundary if we end up with an odd source address we go off and try to copy multi-byte quantities from it. This will trap on the 68000. The only solution if we end with an odd source address is to byte wise copy the whole memcpy region. We only need to do this if we are supporting original 68000 processors. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2011-10-251-1/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (59 commits) MAINTAINERS: linux-m32r is moderated for non-subscribers linux@lists.openrisc.net is moderated for non-subscribers Drop default from "DM365 codec select" choice parisc: Kconfig: cleanup Kernel page size default Kconfig: remove redundant CONFIG_ prefix on two symbols cris: remove arch/cris/arch-v32/lib/nand_init.S microblaze: add missing CONFIG_ prefixes h8300: drop puzzling Kconfig dependencies MAINTAINERS: microblaze-uclinux@itee.uq.edu.au is moderated for non-subscribers tty: drop superfluous dependency in Kconfig ARM: mxc: fix Kconfig typo 'i.MX51' Fix file references in Kconfig files aic7xxx: fix Kconfig references to READMEs Fix file references in drivers/ide/ thinkpad_acpi: Fix printk typo 'bluestooth' bcmring: drop commented out line in Kconfig btmrvl_sdio: fix typo 'btmrvl_sdio_sd6888' doc: raw1394: Trivial typo fix CIFS: Don't free volume_info->UNC until we are entirely done with it. treewide: Correct spelling of successfully in comments ...
| * | doc: fix broken referencesPaul Bolle2011-09-271-1/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | There are numerous broken references to Documentation files (in other Documentation files, in comments, etc.). These broken references are caused by typo's in the references, and by renames or removals of the Documentation files. Some broken references are simply odd. Fix these broken references, sometimes by dropping the irrelevant text they were part of. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | m68k: Finally remove leftover markers sectionsKirill Tkhai2011-10-241-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | Markers have removed already twice: 1: fc5377668c3d808e1d53c4aee152c836f55c3490 2: eb878b3bc0349344dbf70c51bf01fc734d5cf2d3 But a little bit is still here. Signed-off-by: Tkhai Kirill <tkhai@yandex.ru> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* | m68k/mac: Fix mac_irq_pending() for PSC MACE and SCCFinn Thain2011-10-241-1/+1
| | | | | | | | | | | | | | | | | | | | Add missing return statement. The docs say that the level 4 PSC IRQs relate to MACE DMA and SCC. Since those drivers don't call mac_irq_pending() this patch has no affect. But it should be fixed all the same, since it can be useful for MACE debugging. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* | m68k/mac: Fix compiler warning in via_read_time()Finn Thain2011-10-241-17/+23
|/ | | | | | | | | | | The algorithm described in the comment compares two reads from the RTC but the code actually reads once and compares the result to an uninitialized value. This causes the compiler to warn, "last_result maybe used uninitialized". Make the code match the comment, fix the warning and perhaps improve reliability. Tested on a Quadra 700. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* All Arch: remove linkage for sys_nfsservctl system callNeilBrown2011-08-261-1/+1
| | | | | | | | | The nfsservctl system call is now gone, so we should remove all linkage for it. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* m68k: fix __page_to_pfn for a const struct page argumentIan Campbell2011-08-231-1/+1
| | | | | | | | | | | Fixes fallout due to the removal of the cast in commit aa462abe8aaf ("mm: fix __page_to_pfn for a const struct page argument") Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Andrew Morton <akpm@linux-foundation.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: linux-m68k@lists.linux-m68k.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'apei' into apei-releaseLen Brown2011-08-031-0/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | Some trivial conflicts due to other various merges adding to the end of common lists sooner than this one. arch/ia64/Kconfig arch/powerpc/Kconfig arch/x86/Kconfig lib/Kconfig lib/Makefile Signed-off-by: Len Brown <len.brown@intel.com>
| * Add Kconfig option ARCH_HAVE_NMI_SAFE_CMPXCHGHuang Ying2011-08-031-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cmpxchg() is widely used by lockless code, including NMI-safe lockless code. But on some architectures, the cmpxchg() implementation is not NMI-safe, on these architectures the lockless code may need a spin_trylock_irqsave() based implementation. This patch adds a Kconfig option: ARCH_HAVE_NMI_SAFE_CMPXCHG, so that NMI-safe lockless code can depend on it or provide different implementation according to it. On many architectures, cmpxchg is only NMI-safe for several specific operand sizes. So, ARCH_HAVE_NMI_SAFE_CMPXCHG define in this patch only guarantees cmpxchg is NMI-safe for sizeof(unsigned long). Signed-off-by: Huang Ying <ying.huang@intel.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Chris Metcalf <cmetcalf@tilera.com> Acked-by: Richard Henderson <rth@twiddle.net> CC: Mikael Starvik <starvik@axis.com> Acked-by: David Howells <dhowells@redhat.com> CC: Yoshinori Sato <ysato@users.sourceforge.jp> CC: Tony Luck <tony.luck@intel.com> CC: Hirokazu Takata <takata@linux-m32r.org> CC: Geert Uytterhoeven <geert@linux-m68k.org> CC: Michal Simek <monstr@monstr.eu> Acked-by: Ralf Baechle <ralf@linux-mips.org> CC: Kyle McMartin <kyle@mcmartin.ca> CC: Martin Schwidefsky <schwidefsky@de.ibm.com> CC: Chen Liqin <liqin.chen@sunplusct.com> CC: "David S. Miller" <davem@davemloft.net> CC: Ingo Molnar <mingo@redhat.com> CC: Chris Zankel <chris@zankel.net> Signed-off-by: Len Brown <len.brown@intel.com>
* | Merge branch 'for-linus' of ↵Linus Torvalds2011-07-319-906/+137
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k/math-emu: Remove unnecessary code m68k/math-emu: Remove commented out old code m68k: Kill warning in setup_arch() when compiling for Sun3 m68k/atari: Prefix GPIO_{IN,OUT} with CODEC_ sparc: iounmap() and *_free_coherent() - Use lookup_resource() m68k/atari: Reserve some ST-RAM early on for device buffer use m68k/amiga: Chip RAM - Use lookup_resource() resources: Add lookup_resource() sparc: _sparc_find_resource() should check for exact matches m68k/amiga: Chip RAM - Offset resource end by CHIP_PHYSADDR m68k/amiga: Chip RAM - Use resource_size() to fix off-by-one error m68k/amiga: Chip RAM - Change chipavail to an atomic_t m68k/amiga: Chip RAM - Always allocate from the start of memory m68k/amiga: Chip RAM - Convert from printk() to pr_*() m68k/amiga: Chip RAM - Use tabs for indentation
| * | m68k/math-emu: Remove unnecessary codeGreg Dietsche2011-07-301-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove unnecessary code that matches this coccinelle pattern if (...) return ret; return ret; Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * | m68k/math-emu: Remove commented out old codeGeert Uytterhoeven2011-07-301-530/+0
| | | | | | | | | | | | | | | | | | | | | | | | It's been unused for ages, and contains bugs (e.g. incorrect shifts in lsl64()). Reported-by: Jonathan Elchison <jelchison@gmail.com> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * | m68k: Kill warning in setup_arch() when compiling for Sun3Geert Uytterhoeven2011-07-301-0/+2
| | | | | | | | | | | | | | | | | | | | | arch/m68k/kernel/setup_mm.c: In function ‘setup_arch’: arch/m68k/kernel/setup_mm.c:219: warning: unused variable ‘i’ Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * | m68k/atari: Prefix GPIO_{IN,OUT} with CODEC_Geert Uytterhoeven2011-07-301-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These defines are way to generic, and cause conflicts: drivers/net/wireless/rtlwifi/rtl8192c/../rtl8192ce/reg.h:369:1: warning: "GPIO_IN" redefined drivers/net/wireless/rtlwifi/rtl8192c/../rtl8192ce/reg.h:370:1: warning: "GPIO_OUT" redefined drivers/net/wireless/rtlwifi/rtl8192se/reg.h:252:1: warning: "GPIO_IN" redefined drivers/net/wireless/rtlwifi/rtl8192se/reg.h:253:1: warning: "GPIO_OUT" redefined Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * | m68k/atari: Reserve some ST-RAM early on for device buffer useMichael Schmitz2011-07-304-298/+70
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on an original patch from Michael Schmitz: Because mem_init() is now called before device init, devices that rely on ST-RAM may find all ST-RAM already allocated to other users by the time device init happens. In particular, a large initrd RAM disk may use up enough of ST-RAM to cause atari_stram_alloc() to resort to __get_dma_pages() allocation. In the current state of Atari memory management, all of RAM is marked DMA capable, so __get_dma_pages() may well return RAM that is not in actual fact DMA capable. Using this for frame buffer or SCSI DMA buffer causes subtle failure. The ST-RAM allocator has been changed to allocate memory from a pool of reserved ST-RAM of configurable size, set aside on ST-RAM init (i.e. before mem_init()). As long as this pool is not exhausted, allocation of real ST-RAM can be guaranteed. Other changes: - Replace the custom allocator in the ST-RAM pool by the existing allocator in the resource subsystem, - Remove mem_init_done and its hook, as memory init is now done before device init, - Remove /proc/stram, as ST-RAM usage now shows up under /proc/iomem, e.g. 005f2000-006f1fff : ST-RAM Pool 005f2000-0063dfff : atafb 0063e000-00641fff : ataflop 00642000-00642fff : SCSI Signed-off-by: Michael Schmitz <schmitz@debian.org> [Andreas Schwab <schwab@linux-m68k.org>: Use memparse()] [Geert: Use the resource subsystem instead of a custom allocator] Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * | m68k/amiga: Chip RAM - Use lookup_resource()Geert Uytterhoeven2011-07-301-11/+11
| | | | | | | | | | | | | | | | | | | | | Replace a custom implementation (which doesn't lock the resource tree) by a call to lookup_resource() Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * | m68k/amiga: Chip RAM - Offset resource end by CHIP_PHYSADDRGeert Uytterhoeven2011-07-301-1/+1
| | | | | | | | | | | | | | | | | | | | | Technically, the end of Chip RAM should be offset by CHIP_PHYSADDR (which is zero). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * | m68k/amiga: Chip RAM - Use resource_size() to fix off-by-one errorGeert Uytterhoeven2011-07-301-1/+1
| | | | | | | | | | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * | m68k/amiga: Chip RAM - Change chipavail to an atomic_tGeert Uytterhoeven2011-07-301-6/+9
| | | | | | | | | | | | | | | | | | | | | While the core resource handling code is safe, our global counter must still be protected against concurrent modifications. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * | m68k/amiga: Chip RAM - Always allocate from the start of memoryGeert Uytterhoeven2011-07-301-20/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As of commit 5df1abdbd37af2ae317a1c5b5944173284dc55d6 ('m68k/amiga: Fix "debug=mem"'), "debug=mem" no longer uses amiga_chip_alloc_res(), so we can remove the hack to prefer memory at the safe end. This allows to simplify the code and make amiga_chip_alloc() just call amiga_chip_alloc_res() internally. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * | m68k/amiga: Chip RAM - Convert from printk() to pr_*()Geert Uytterhoeven2011-07-301-20/+8
| | | | | | | | | | | | | | | | | | | | | | | | and fix a few formattings: - resource sizes are now resource_size_t, use %pR to make it future proof, - use %lu for unsigned long. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * | m68k/amiga: Chip RAM - Use tabs for indentationGeert Uytterhoeven2011-07-301-57/+61
| |/ | | | | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* | atomic: cleanup asm-generic atomic*.h inclusionArun Sharma2011-07-261-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After changing all consumers of atomics to include <linux/atomic.h>, we ran into some compile time errors due to this dependency chain: linux/atomic.h -> asm/atomic.h -> asm-generic/atomic-long.h where atomic-long.h could use funcs defined later in linux/atomic.h without a prototype. This patches moves the code that includes asm-generic/atomic*.h to linux/atomic.h. Archs that need <asm-generic/atomic64.h> need to select CONFIG_GENERIC_ATOMIC64 from now on (some of them used to include it unconditionally). Compile tested on i386 and x86_64 with allnoconfig. Signed-off-by: Arun Sharma <asharma@fb.com> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | atomic: move atomic_add_unless to generic codeArun Sharma2011-07-261-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This is in preparation for more generic atomic primitives based on __atomic_add_unless. Signed-off-by: Arun Sharma <asharma@fb.com> Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | atomic: use <linux/atomic.h>Arun Sharma2011-07-261-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows us to move duplicated code in <asm/atomic.h> (atomic_inc_not_zero() for now) to <linux/atomic.h> Signed-off-by: Arun Sharma <asharma@fb.com> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | h8300/m68k/xtensa: __FD_ISSET should return 0/1Andrew Morton2011-07-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Harmonise these return values with other architectures. In some cases this affects all compilers and in other cases non-gcc compilers only. Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Chris Zankel <chris@zankel.net> Cc: Ulrich Drepper <drepper@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | ptrace: unify show_regs() prototypeMike Frysinger2011-07-261-1/+0
| | | | | | | | | | | | | | | | | | [ poleg@redhat.com: no need to declare show_regs() in ptrace.h, sched.h does this ] Signed-off-by: Mike Frysinger <vapier@gentoo.org> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2011-07-2544-1907/+1074
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68k: Revive reporting of spurious interrupts m68knommu: Move forward declaration of do_IRQ() from machdep.h to irq.h m68k: fix some atomic operation asm address modes for ColdFire m68k: use CPU_HAS_NO_BITFIELDS for signal functions m68k: merge and clean up delay.h files m68knommu: correctly use trap_init m68knommu: merge ColdFire 5206 and 5206e platform code m68k: merge mmu and non-mmu bitops.h m68k: merge MMU and non MMU versions of system.h m68k: merge MMU and non-MMU versions of asm/hardirq.h m68k: merge the non-mmu and mmu versions of module.c m68knommu: Fix printk() format in free_initrd_mem() m68knommu: Make empty_zero_page "void *", like on m68k
| * | m68k: Revive reporting of spurious interruptsGeert Uytterhoeven2011-07-255-8/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 2502b667ea835ee16685c74b2a0d89ba8afe117a ("Change the m68knommu irq handling to use the generic irq framework.") removed the reporting of spurious interrupts on nommu (68328 and 68360). Bring it back in a generic way, using "atomic_t irq_err_count", as that's what most of the other architectures are using. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * | m68knommu: Move forward declaration of do_IRQ() from machdep.h to irq.hGeert Uytterhoeven2011-07-252-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | It is not machine-specific, but common irq infrastructure. Also add the missing asmlinkage, to match its definition. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * | m68k: fix some atomic operation asm address modes for ColdFireGreg Ungerer2011-07-251-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ColdFire processors have a much more limited set of addressing modes that can be used for most instructions. A number of the atomic operations have already been fixed to limit the addressing modes used with add and sub instructions when building for ColdFire. But we missed a few. Fix the remaining atomic operations to be clean for ColdFire processors. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * | m68k: use CPU_HAS_NO_BITFIELDS for signal functionsGreg Ungerer2011-07-251-8/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When reworking bitops.h to be clean for all processor types we introduced a CONFIG_CPU_HAS_NO_BITFIELDS define to signal whether this processor type supported the bit field instructions. The ARCH_SIG_BITOPS functions for m68k use these instruction types. We should base the use of these functions (or the generic versions) on the CONFIG_CPU_HAS_NO_BITFIELDS define. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * | m68k: merge and clean up delay.h filesGreg Ungerer2011-07-255-158/+95
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The real difference between the mmu and non-mmu varients of the delay.h files has nothing to do with having an mmu or not. It is processor family differences that means slightly different code. Merge the delay_mm.h and delay_no.h files back into a single file. The primarly difference we need to deal with is whether the processor supports a 32bit * 32bit -> 64bit multiply. Without it we need to do some shift scaling as well as use a 32bit * 32bit -> 32bit multiply. If building for a multi-CPU type kernel then we must use the simpler mult/shift scaling. This version of delay code allows the CPU32 family to use a 64bit mul, since it supports this instruction, the old code did not. The changes use macros where appropriate to try and optimize constant sized udelay times. And it removes the use of a fixed lib function for the non-mmu case. Code size on typical kernel configurations is similar, or only larger by a few tens of bytes. Also removed the unused muldiv() code from delay_mm.h. Build and run tested on ColdFire and ARAnyM. Build tested only on 68328 and 68360 (CPU32). Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * | m68knommu: correctly use trap_initGreg Ungerer2011-07-259-24/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently trap_init() is an empty function for m68knommu. Instead the vectors are being setup as part of the IRQ initialization. This is inconsistent with m68k and other architectures. Change the local init_vectors() to be trap_init(), and init the vectors at the correct time during startup. This will help merge of m68k and m68knommu trap code in the furture. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| * | m68knommu: merge ColdFire 5206 and 5206e platform codeGreg Ungerer2011-07-255-195/+7
| | | | | | | | | | | | | | | | | | | | | | | | The ColdFire 5206 and 5206e CPU families are almost identical, we can easily merge the platform support code for them. All the differences are dealt with in the current include/asm/5206sim.h. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
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