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2008-02-08CRIS v32: Update and improve kernel/traps.cJesper Nilsson1-78/+114
- Remove watchdog handling, handled elsewhere. - Shorten include paths to machine dependent header files. - Remove raw_printk hack, we now use oops_in_progress instead. - Add handling of BUG for exception handlers (break 14). - Formatting and whitespace changes.
2008-02-08CRIS v32: Minor updates to kernel/process.cJesper Nilsson1-9/+5
- Shorten include paths for machine dependent header files. - Remove unused extern declaration of etrax_gpio_wake_up_check. - Register name for first timer is now regi_timer0.
2008-02-08CRIS v32: Update and simplify kernel/irq.c.Jesper Nilsson1-81/+193
- First timer register has changed name to timer0. - Build IRQs with only IRQ number, mask bit will be calculated instead. - Add more IRQs, up to 64 supported. - Use arrays to hold which IRQs triggered instead of trying to do magic with two 32 bit values now that more than 32 IRQs are supported.
2008-02-08CRIS v32: Update kernel/head.SJesper Nilsson1-88/+114
- Shorten include paths for machine specific header files. - Add magic for booting NAND flash. - Change CONFIG_ETRAXFS_SIM to CONFIG_ETRAX_VCS_SIM. - Use assembler macros for initializing hardware (clocks) - Add stubs for SMP slave CPUs. - Search for cramfs or jffs2 if no romfs found. - Initialize l2cache.
2008-02-08CRIS v32: Update and improve fasttimer.cJesper Nilsson1-324/+195
- Change include path to machine dependent header files. - Remove __INLINE__, it expands to inline anyway. - Don't initialize static variables. - Change timers to use fasttimer_t instead of timevals. - Change name of timeval_cmp to fasttime_cmp to highlight this. - Register name for first timer is regi_timer0, not regi_timer. - Whitespace and formatting changes. - Don't return if we're blocking interrupts, goto done and restore interrupts. - Disable interrupts while walking the fasttimer list, only restore while doing the callback. - Remove #ifdef DECLARE_WAITQUEUE, this code won't be used in another OS. - Remove CVS log.
2008-02-08CRIS v32: Include path fix for timex.hJesper Nilsson1-4/+4
- Shorten include path for machine dependent header files. - Correct some formatting issues.
2008-02-08CRIS v32: Update debugport.Jesper Nilsson1-299/+43
- Shorten include paths to machine dependent headers. - Add support for fifth serial port. - Remove CONFIG_ETRAXFS_SIM and CONFIG_ETRAX_DEBUG_PORT_NULL, no longer used. - Remove raw_printk and stupid_debug hack, no longer needed. - Remove dummy console stuff, no longer needed. - Correct some register type names. - Correct some whitespace errors and formatting.
2008-02-08CRIS v32: Update boot/rescue/head.S code.Jesper Nilsson1-27/+15
- Add ifdef for ETRAX_AXISFLASHMAP to avoid compiling file unless it is set. - Use assembler macros for setting up clocks. - Don't copy image, just jump to it (only works for NOR flash)
2008-02-08CRIS v32: Update boot/compressed/misc.cJesper Nilsson1-19/+53
- Shorten include paths to machine specific headers. - Remove fill_inbuf, not defined here. - Return __dest as value from memcpy. - Enable serial port hardware transmitter and receiver in serial_setup. - Correct baudrate divisor calculation, changed from 4800 to 115200. - Add support for Artpec-3 specific serial port setup. - Initialize pinmux for the correct serial port.
2008-02-08CRIS v32: Update compressed head.SJesper Nilsson1-98/+39
- Fixes for NAND and NOR flash booting. - Use assembler macros for common tasks (clocks, general io etc) - Use (EtraxFS or Artpec-3) machine specific include for dram and hardware init.
2008-02-08CRIS v32: Remove common gpio and nandflash, add mach-fs and mach-a3 as subdirs.Jesper Nilsson1-2/+3
Also add board_mmcspi to build if ETRAX_SPI_MMC_BOARD is set. (Generic MMC SPI implementation)
2008-02-08CRIS v32: Update boot rescue Kbuild makefile.Jesper Nilsson1-25/+16
- Remove old specific targets, use more generic ones instead. - Use if_changed to avoid creating new images when no change. - Use EXTRA_CFLAGS instead of CFLAGS.
2008-02-08CRIS v32: Update boot compressed Kbuild makefile.Jesper Nilsson1-28/+17
- Remove old specific targets, use more generic ones instead. - Use if_changed to avoid creating new images when no change. - Use KBUILD_CFLAGS instead of CFLAGS.
2008-02-08CRIS v32: Update boot Kbuild makefile.Jesper Nilsson1-8/+15
- Remove old specific targets, use more generic ones instead. - Use if_changed to avoid creating new images when no change.
2008-02-08CRIS v32: Update traps.cJesper Nilsson1-103/+95
- Remove raw_prink hack, use oops_in_progress instead. - When ETRAX_WATCHDOG_NICE_DOGGY is set, loop in trap after oops dump instead of rebooting. - Break long lines to less than 80 chars. - Fix whitespace errors. - Remove unnecessary comments.
2008-02-08CRIS v10: Update and improve axisflashmap.cJesper Nilsson1-144/+37
- Add config to use mtd0 as whole flash device. - Fix whitespace errors. - Remove braces around single statement ifs. - Break long lines. - Remove unnecessary CVS log.
2008-02-08CRIS v10: Update rescue head.sJesper Nilsson1-56/+61
- Correct whitespace problems. - Add ifdef for ETRAX_AXISFLASHMAP to avoid compile error when not set.
2008-02-08CRIS v10: Update rescue Kbuild makefile.Jesper Nilsson1-37/+19
- Remove old specific targets, use more generic ones instead. - Use if_changed to avoid creating new images when no change. Removes a lot of cruft. - Use EXTRA_CFLAGS instead of CFLAGS.
2008-02-08CRIS v10: Update boot/compressed Kbuild makefile.Jesper Nilsson1-29/+19
- Remove old specific targets, use more generic ones instead. - Use if_changed to avoid creating new images when no change. - Use EXTRA_CFLAGS instead of CFLAGS.
2008-02-08CRIS v10: Update boot Kbuild makefile.Jesper Nilsson1-8/+16
- Remove old specific targets, use more generic ones instead.
2008-02-08CRIS: Update main Kbuild makefile.Jesper Nilsson1-69/+70
- Remove old and non-generic targets, use generic ones instead. - Add sub-arch as mach-fs or mach-a3 for EtraxFS and Artpec-3 respectively. - Add links to sub-arch directories, and erase before trying to create them. - Include from sub-arch specific include directory "mach". - Add files to be cleaned in CLEAN_FILES instead of as archclean target.
2008-02-08CRIS v32: Update and improve axisflashmapJesper Nilsson1-143/+345
- Use default partition table when no partition is found (for initial tests) - Add config ETRAX_AXISFLASHMAP_MTD0WHOLE to allow whole flash as mtd0. - Add config for VCS simulator connection.
2008-02-08CRIS v32: New version of I2C driver.Jesper Nilsson2-14/+187
- Add i2c_write and i2c_read as functions. - Use spinlocks for critical regions. - Add config item to set I2C data and clock port. - Put unneeded testcode inside #if 0. - Remove CVS id tag.
2008-02-08CRIS v32: Fixup kernel Makefile.Jesper Nilsson1-3/+2
- Remove CRISv32 common arbiter, dma, io and pinmux files, they are now defined in machine dependent directories. - Add cache and cacheflush files for working around cache problems in CRISv32 chips.
2008-02-08CRIS v32: Update entry.S to working order.Jesper Nilsson1-18/+63
- Remove oldset parameter. - Utilise delay-slot for parameter moving. - Add kernel_execve as break 13. - Add new kernel syscalls.
2008-02-08CRIS: Remove define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORYJesper Nilsson1-11/+0
2008-02-08CRIS v32: Whitespace and formatting changes for kernel/ptrace.cJesper Nilsson2-5/+8
2008-02-08CRIS: Minor generic kernel/traps.c changes.Jesper Nilsson1-87/+139
- Collect extern declarations at top of file. - Change raw_printk to printk, use oops_in_progress instead. - Fix formatting and whitespace. - Allow the watchdog to be disabled during oops.
2008-02-08CRIS: Minor fixes to mm/fault.cJesper Nilsson1-141/+28
- Only disallow oops if we're in_interrupt context (was in_atomic before) - Use the generic oops_in_progress instead of the raw_printk hack. - Fix whitespace/formatting. - Remove CVS log entries.
2008-02-08CRIS v32: Add headers for EtraxFS and Artpec-3 chips.Jesper Nilsson1-0/+3
2008-02-08CRIS v32: Add prototypes for cache flushingJesper Nilsson1-0/+11
We need these to work around some cache bugs in CRISv32 chips.
2008-02-08CRIS: Remove unnecessary CVS log from cris/mm/init.cJesper Nilsson1-111/+0
2008-02-08CRIS v32: Update asm-cris/arch-v32/irq.h for ETRAX FS and ARTPEC-3Jesper Nilsson1-5/+10
- Correct include to use <> - Rework calculation of number of IRQs and exceptions we have. - Remove useless "mask" argument to BUILD_IRQ macro
2008-02-08CRIS: Merge axisflashmap.h with Axis internal changes.Jesper Nilsson1-12/+27
- Add partition table struct to be used to parse partition table in flash. - Add JFFS2 as a type, and add readoly flag. - Improve some comments. - Lindent has been run, fixing whitespace and formatting issues.
2008-02-08CRIS v32: Update synchronous serial driver.Jesper Nilsson1-341/+599
Now uses a DMA descriptor ring, which should avoid any unnecessary pauses in the streams.
2008-02-08CRIS v32: Add SECOND_WORD_SYNC, used in sync_serial.Jesper Nilsson1-0/+1
2008-02-08CRIS v32: Add L2 cache initialization code.Jesper Nilsson1-0/+29
2008-02-08CRIS v32: Add hardware dependent include files and defconfigs for ETRAX FS ↵Jesper Nilsson65-0/+19631
and ARTPEC-3 chips. The header files describe the hardware registers available in both these chips, note that most of this documentation is automatically generated from the hardware implementation.
2008-02-08CRIS v32: Add new machine dependent files for Etrax-FS and Artpec-3.Jesper Nilsson23-186/+3470
The two chips are somewhat different, and needs different handling. Adds handing of the dma, dram initialization, hardware settings, io, memory arbiter and pinmux Also moves the dma, dram initialization and io from CRIS v32 common files.
2008-02-08CRIS v32: Add new driver files for Etrax-FSJesper Nilsson3-0/+1149
Adds gpio and nandflash handling for Etrax-FS
2008-02-08CRIS v32: Add new driver files for Artpec-3.Jesper Nilsson3-0/+1168
Adds gpio and nandflash handling for Artpec-3.
2008-02-08CRIS: Rearrange Kconfigs for v10 and v32 to allow compilation without warnings.Jesper Nilsson5-536/+988
- Remove some unneeded configs and add some new ones. - Merge common config items to common file instead of duplicating them. - Pull in standard Kconfig.preempt. - Remove some unneeded Kconfigs for subsystems not (yet) available on CRIS (md, scsi, ieee1394, i2o, isdn, telephony, media, pcmcia, pci) - Rename CRISv32 config items which had different types from CRISv10. (ETRAX_LED2G, ETRAX_LED2R, ETRAX_LED3G, ETRAX_LED3R, ETRAX_I2C_DATA_PORT, ETRAX_I2C_CLK_PORT)
2008-02-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dmLinus Torvalds15-483/+1372
* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: (44 commits) dm raid1: report fault status dm raid1: handle read failures dm raid1: fix EIO after log failure dm raid1: handle recovery failures dm raid1: handle write failures dm snapshot: combine consecutive exceptions in memory dm: stripe enhanced status return dm: stripe trigger event on failure dm log: auto load modules dm: move deferred bio flushing to workqueue dm crypt: use async crypto dm crypt: prepare async callback fn dm crypt: add completion for async dm crypt: add async request mempool dm crypt: extract scatterlist processing dm crypt: tidy io ref counting dm crypt: introduce crypt_write_io_loop dm crypt: abstract crypt_write_done dm crypt: store sector mapping in dm_crypt_io dm crypt: move queue functions ...
2008-02-07Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6Linus Torvalds60-1731/+3689
* 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6: (59 commits) hwmon: (lm80) Add individual alarm files hwmon: (lm80) De-macro the sysfs callbacks hwmon: (lm80) Various cleanups hwmon: (w83627hf) Refactor beep enable handling hwmon: (w83627hf) Add individual alarm and beep files hwmon: (w83627hf) Enable VBAT monitoring hwmon: (w83627ehf) The W83627DHG has 8 VID pins hwmon: (asb100) Add individual alarm files hwmon: (asb100) De-macro the sysfs callbacks hwmon: (asb100) Various cleanups hwmon: VRM is not written to registers hwmon: (dme1737) fix Super-IO device ID override hwmon: (dme1737) fix divide-by-0 hwmon: (abituguru3) Add AUX4 fan input for Abit IP35 Pro hwmon: Add support for Texas Instruments/Burr-Brown ADS7828 hwmon: (adm9240) Add individual alarm files hwmon: (lm77) Add individual alarm files hwmon: Discard useless I2C driver IDs hwmon: (lm85) Make the pwmN_enable files writable hwmon: (lm85) Return standard values in pwmN_enable ...
2008-02-07Merge branch 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6Linus Torvalds85-3184/+2303
* 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6: (62 commits) [XFS] add __init/__exit mark to specific init/cleanup functions [XFS] Fix oops in xfs_file_readdir() [XFS] kill xfs_root [XFS] keep i_nlink updated and use proper accessors [XFS] stop updating inode->i_blocks [XFS] Make xfs_ail_check check less by default [XFS] Move AIL pushing into it's own thread [XFS] use generic_permission [XFS] stop re-checking permissions in xfs_swapext [XFS] clean up xfs_swapext [XFS] remove permission check from xfs_change_file_space [XFS] prevent panic during log recovery due to bogus op_hdr length [XFS] Cleanup various fid related bits: [XFS] Fix xfs_lowbit64 [XFS] Remove CFORK macros and use code directly in IFORK and DFORK macros. [XFS] kill superflous buffer locking (2nd attempt) [XFS] Use kernel-supplied "roundup_pow_of_two" for simplicity [XFS] Remove the BPCSHIFT and NB* based macros from XFS. [XFS] Remove bogus assert [XFS] optimize XFS_IS_REALTIME_INODE w/o realtime config ...
2008-02-07Convert SG from nopage to fault.Nick Piggin1-12/+11
Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Douglas Gilbert <dougg@torque.net> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07Merge branch 'slub-linus' of ↵Linus Torvalds6-63/+457
git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm * 'slub-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm: SLUB: fix checkpatch warnings Use non atomic unlock SLUB: Support for performance statistics SLUB: Alternate fast paths using cmpxchg_local SLUB: Use unique end pointer for each slab page. SLUB: Deal with annoying gcc warning on kfree()
2008-02-08dm raid1: report fault statusJonathan Brassow1-8/+36
This patch adds extra information to the mirror status output, so that it can be determined which device(s) have failed. For each mirror device, a character is printed indicating the most severe error encountered. The characters are: * A => Alive - No failures * D => Dead - A write failure occurred leaving mirror out-of-sync * S => Sync - A sychronization failure occurred, mirror out-of-sync * R => Read - A read failure occurred, mirror data unaffected This allows userspace to properly reconfigure the mirror set. Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2008-02-08dm raid1: handle read failuresJonathan Brassow1-45/+211
This patch gives the ability to respond-to/record device failures that happen during read operations. It also adds the ability to read from mirror devices that are not the primary if they are in-sync. There are essentially two read paths in mirroring; the direct path and the queued path. When a read request is mapped, if the region is 'in-sync' the direct path is taken; otherwise the queued path is taken. If the direct path is taken, we must record bio information so that if the read fails we can retry it. We then discover the status of a direct read through mirror_end_io. If the read has failed, we will mark the device from which the read was attempted as failed (so we don't try to read from it again), restore the bio and try again. If the queued path is taken, we discover the results of the read from 'read_callback'. If the device failed, we will mark the device as failed and attempt the read again if there is another device where this region is known to be 'in-sync'. Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2008-02-08dm raid1: fix EIO after log failureJonathan Brassow1-11/+90
This patch adds the ability to requeue write I/O to core device-mapper when there is a log device failure. If a write to the log produces and error, the pending writes are put on the "failures" list. Since the log is marked as failed, they will stay on the failures list until a suspend happens. Suspends come in two phases, presuspend and postsuspend. We must make sure that all the writes on the failures list are requeued in the presuspend phase (a requirement of dm core). This means that recovery must be complete (because writes may be delayed behind it) and the failures list must be requeued before we return from presuspend. The mechanisms to ensure recovery is complete (or stopped) was already in place, but needed to be moved from postsuspend to presuspend. We rely on 'flush_workqueue' to ensure that the mirror thread is complete and therefore, has requeued all writes in the failures list. Because we are using flush_workqueue, we must ensure that no additional 'queue_work' calls will produce additional I/O that we need to requeue (because once we return from presuspend, we are unable to do anything about it). 'queue_work' is called in response to the following functions: - complete_resync_work = NA, recovery is stopped - rh_dec (mirror_end_io) = NA, only calls 'queue_work' if it is ready to recover the region (recovery is stopped) or it needs to clear the region in the log* **this doesn't get called while suspending** - rh_recovery_end = NA, recovery is stopped - rh_recovery_start = NA, recovery is stopped - write_callback = 1) Writes w/o failures simply call bio_endio -> mirror_end_io -> rh_dec (see rh_dec above) 2) Writes with failures are put on the failures list and queue_work is called** ** write_callbacks don't happen during suspend ** - do_failures = NA, 'queue_work' not called if suspending - add_mirror (initialization) = NA, only done on mirror creation - queue_bio = NA, 1) delayed I/O scheduled before flush_workqueue is called. 2) No more I/Os are being issued. 3) Re-attempted READs can still be handled. (Write completions are handled through rh_dec/ write_callback - mention above - and do not use queue_bio.) Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>