Commit Graph

325 Commits

Author SHA1 Message Date
Jesper Nilsson a77dba6a4d CRIS v32: Replace build flags in boot/rescue/Makefile
- Change AFLAGS to asflags-y, LDFLAGS to ldflags-y and EXTRA_CFLAGS
  to ccflags-y. We only need the flags in this Makefile.
2008-02-08 11:06:33 +01:00
Jesper Nilsson 111e3b1aba CRIS v32: Replace build flags in boot/compressed/Makefile
- Change AFLAGS to asflags-y, LDFLAGS to ldflags-y and KBUILD_CFLAGS
  to ccflags-y. We only need the flags in this Makefile.
2008-02-08 11:06:33 +01:00
Jesper Nilsson 8f2972529f CRIS v10: Change name of low voltage read and set macros. 2008-02-08 11:06:33 +01:00
Jesper Nilsson a9d13fad8c CRIS v32: Remove useless CVS id tag from boot/compressed/README 2008-02-08 11:06:33 +01:00
Jesper Nilsson 9bf79539ed CRIS v10: Remove duplicated folding of carry from lib/checksum.S, it is not needed.
Also, remove useless CVS id tag.
2008-02-08 11:06:32 +01:00
Jesper Nilsson ab59284eae CRIS v10: Remove duplicated folding of carry from lib/checksumcopy.S, it is not needed.
Also, remove useless CVS id tag.
2008-02-08 11:06:32 +01:00
Jesper Nilsson 2afab729f5 CRIS v10: Clear TIF_SYSCALL_TRACE flag in ptrace_disable in kernel/ptrace.c 2008-02-08 11:06:32 +01:00
Jesper Nilsson b1220e2e7f CRIS v10: Update kernel/io_interface_mux.c
Fixed a bug where two interfaces using pins in the same pin group could
not be allocated at the same time even if there where no pin collisions.

Change all restore and returns into goto exit pattern.

Also, remove useless CVS id and correct chapter reference for ETRAX100LX
Designer's Reference in comment.
2008-02-08 11:06:32 +01:00
Jesper Nilsson 5f526d1467 CRIS v10: Setup serial port 2 to avoid accidental TXD pulse on startup.
If serial port 2 is used, select it in R_GEN_CONFIG.
If serial port 2 is used, setup the control registers for the port.
This is done to avoid a pulse on the TXD line during start up,
which could disturb some units.

Also, remove useless CVS id and log.
2008-02-08 11:06:31 +01:00
Jesper Nilsson c974a9e5a3 CRIS v10: Add synchronous serial port driver for CRIS v10. 2008-02-08 11:06:31 +01:00
Jesper Nilsson 4f073eff3f CRIS v10: Don't call get_mmu_context when switching between tasks with shared memory descriptors
Also, cleanup formatting and fix whitespace errors.
2008-02-08 11:06:31 +01:00
Jesper Nilsson 40316c1fad CRIS v10: Fix bug where error returns didn't restore irqs in mm/fault.c
Don't return when we're inside local_irq_disable(), use goto exit instead.
Also, cleanup some whitespace errors.
2008-02-08 11:06:31 +01:00
Jesper Nilsson 5712e4dfc6 CRIS v10: Remove useless CVS id tag from lib/old_checksum.c 2008-02-08 11:06:31 +01:00
Jesper Nilsson f12bb5c04a CRIS v10: Remove useless CVS id and log from lib/dram_init.S 2008-02-08 11:06:31 +01:00
Jesper Nilsson da4d091348 CRIS v10: Remove useless CVS id from kernel/shadows.c 2008-02-08 11:06:31 +01:00
Jesper Nilsson b2d0814258 CRIS v10: Reformat drivers/makefile using tabs. 2008-02-08 11:06:31 +01:00
Jesper Nilsson c3d6ddddb0 CRIS: Move common Kconfig variable ETRAX_RTC to arch independet Kconfig. 2008-02-08 11:06:30 +01:00
Jesper Nilsson 5062969d77 CRIS: Remove NO_IOMEM config, we have IO memory. 2008-02-08 11:06:30 +01:00
Jesper Nilsson 10f9f9c857 CRIS v10: Remove CVS id from kernel/process.c 2008-02-08 11:06:30 +01:00
Jesper Nilsson c8acccc959 CRIS v10: Remove CVS log and id from kernel/kgdb.c 2008-02-08 11:06:30 +01:00
Jesper Nilsson 8d67bca55c CRIS v10: Cleanup kernel/irq.c
- Remove useless CVS id tag.
- Remove no longer needed extern declarations for kgdb.
2008-02-08 11:06:30 +01:00
Jesper Nilsson 4200c35d20 CRIS v10: Cleanup kernel/fasttimer.c
- Change C99 comment style to C89.
- Remove superfluous SANITYCHECK macro, test FAST_TIMER_SANITY_CHECKS instead.
2008-02-08 11:06:30 +01:00
Jesper Nilsson 72af70cfec CRIS v10: Cleanup kernel/entry.S CVS log and id. 2008-02-08 11:06:30 +01:00
Jesper Nilsson 028a731f98 CRIS v10: Remove CVS id tag from kernel/dma.c 2008-02-08 11:06:30 +01:00
Jesper Nilsson 99bb22bd28 CRIS v10: Break long lines in boot/rescue/head.S 2008-02-08 11:06:30 +01:00
Jesper Nilsson 7cda012685 CRIS v10: Remove CVS tag from boot/compressed/misc.c 2008-02-08 11:06:29 +01:00
Jesper Nilsson 18b0f34616 CRIS v10: Update and fix bug in kernel/debugport.
- Move local_irq_save to after possible return in console_write_direct.
- Remove old raw_printk hack, not needed anymore.
- Add watchdog handling.
- Make serial_driver use depend on CONFIG_ETRAX_SERIAL.
- Remove useless CVS log.
2008-02-08 11:06:29 +01:00
Jesper Nilsson 34a8e501fe CRIS v10: Update driver for pcf8563
- Use mutex instead of spinlock, fixes kernel bugzilla report 8339.
- Make sure that pcf8563_init can be called multiple times but only setup once.
- Change RTC_VLOW_RD -> RTC_VL_READ, RTC_VLOW_SET -> RTC_VL_CLR
- Cache the voltage low value at driver init so the battery status
  information does not get 'accidentally' cleared when setting the RTC time.
- Add weekday handling.
- Correct leapyear handling to include 100 and 400 year exceptions.
- Correct whitespace and formatting errors.
- Remove useless CVS id tag.
2008-02-08 11:06:29 +01:00
Jesper Nilsson e5d5cf2442 CRIS v10: Fix bugs in i2c_init and i2c_readreg
- Set the variable first to zero after first setup, so we can
  stop multiple calls to i2c_init from trying to setup i2c.

- The last byte read by the master in an i2c transfer needs to
  be NACKed, not ACKed.

- Also, remove useless CVS log and CVS id tags.
2008-02-08 11:06:29 +01:00
Jesper Nilsson 3d6c03fc22 CRIS v10: Cleanup drivers/eeprom.c to avoid import conflicts.
- Remove useless CVS log and CVS id tags.
- Whitespace fix and remove C++ comment.
2008-02-08 11:06:29 +01:00
Jesper Nilsson d207cf5bb9 CRIS v10: Correct and cleanup boot/rescue/testrescue.S
- Correct include path for sv_addr_ag.h, should be asm/arch/
- Fix some whitespace errors.
- Remove useless CVS id tag.
2008-02-08 11:06:29 +01:00
Jesper Nilsson ef8028a7ab CRIS v10: Correct and cleanup boot/rescue/kimagerescue.S
- Correct include path for sv_addr_ag.h, should be included from asm/arch/
- Remove useless CVS id tag.
- Correct whitespace errors and some formatting.
2008-02-08 11:06:29 +01:00
Jesper Nilsson 546cc14862 CRIS v10: Change boot/rescue/Makefile to use ccflags-y, asflags-y and ldflags-y.
Replace EXTRA_CFLAGS with ccflags-y.
Change ASFLAGS and LDFLAGS into asflags-y and ldflags-y, we only need
these flags in this makefile.
2008-02-08 11:06:29 +01:00
Jesper Nilsson 3c9547a504 CRIS v10: Update boot/compressed/Makefile to use ccflags-y and ldflags-y
Replace use of EXTRA_CFLAGS with ccflags-y and LDFLAGS with ldflags-y,
(we only need to change linker flags for this makefile)
2008-02-08 11:06:28 +01:00
Jesper Nilsson fbdb5f865b CRIS v32: Update and improve kernel/time.c
- Shorten include paths to machine dependent header files.
- Register name for first timer is now regi_timer0.
- Remove raw_printk hack, use oops_in_progress instead.
- Add handling of CPU frequency scaling for CRIS.
- Remove regs parameter to timer_interrupt, get them from get_irq_regs instead.
- Whitespace and formatting changes.
2008-02-08 11:06:28 +01:00
Jesper Nilsson bd1c8c54b9 CRIS v10: New default config. 2008-02-08 11:06:28 +01:00
Jesper Nilsson 9ce1ea751f CRIS v32: Update and improve kernel/traps.c
- 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.
2008-02-08 11:06:27 +01:00
Jesper Nilsson 8cca29b713 CRIS v32: Minor updates to kernel/process.c
- 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.
2008-02-08 11:06:27 +01:00
Jesper Nilsson 693d9847b2 CRIS v32: Update and simplify kernel/irq.c.
- 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.
2008-02-08 11:06:27 +01:00
Jesper Nilsson 96e476697d CRIS v32: Update kernel/head.S
- 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.
2008-02-08 11:06:27 +01:00
Jesper Nilsson ec87ee20c2 CRIS v32: Update and improve fasttimer.c
- 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.
2008-02-08 11:06:27 +01:00
Jesper Nilsson 8226410262 CRIS v32: Update debugport.
- 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.
2008-02-08 11:06:27 +01:00
Jesper Nilsson 3f50c0673c CRIS v32: Update boot/rescue/head.S code.
- 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)
2008-02-08 11:06:27 +01:00
Jesper Nilsson a5d204bf36 CRIS v32: Update boot/compressed/misc.c
- 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.
2008-02-08 11:06:27 +01:00
Jesper Nilsson 247c3c959f CRIS v32: Update compressed head.S
- 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.
2008-02-08 11:06:26 +01:00
Jesper Nilsson 5d23ff25b2 CRIS v32: Remove common gpio and nandflash, add mach-fs and mach-a3 as subdirs.
Also add board_mmcspi to build if ETRAX_SPI_MMC_BOARD is set.
(Generic MMC SPI implementation)
2008-02-08 11:06:26 +01:00
Jesper Nilsson dbf9f14476 CRIS v32: Update boot rescue Kbuild makefile.
- 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.
2008-02-08 11:06:26 +01:00
Jesper Nilsson 28bf739b12 CRIS v32: Update boot compressed Kbuild makefile.
- 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.
2008-02-08 11:06:26 +01:00
Jesper Nilsson 3d6f7871ad CRIS v32: Update boot Kbuild makefile.
- Remove old specific targets, use more generic ones instead.
- Use if_changed to avoid creating new images when no change.
2008-02-08 11:06:26 +01:00
Jesper Nilsson 1e4cc2c8c7 CRIS v32: Update traps.c
- 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.
2008-02-08 11:06:26 +01:00
Jesper Nilsson 32872b203b CRIS v10: Update and improve axisflashmap.c
- 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.
2008-02-08 11:06:26 +01:00
Jesper Nilsson 8c11bffae7 CRIS v10: Update rescue head.s
- Correct whitespace problems.
- Add ifdef for ETRAX_AXISFLASHMAP to avoid compile error when not set.
2008-02-08 11:06:26 +01:00
Jesper Nilsson 63e6b9a0b8 CRIS v10: Update rescue Kbuild makefile.
- 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.
2008-02-08 11:06:25 +01:00
Jesper Nilsson 1333a69483 CRIS v10: Update boot/compressed Kbuild makefile.
- 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.
2008-02-08 11:06:25 +01:00
Jesper Nilsson 87f5a7f703 CRIS v10: Update boot Kbuild makefile.
- Remove old specific targets, use more generic ones instead.
2008-02-08 11:06:25 +01:00
Jesper Nilsson 2c2314bf6b CRIS: Update main Kbuild makefile.
- 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.
2008-02-08 11:06:25 +01:00
Jesper Nilsson 5fc1f3122f CRIS v32: Update and improve axisflashmap
- 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.
2008-02-08 11:06:25 +01:00
Jesper Nilsson 201ca54aa0 CRIS v32: New version of I2C driver.
- 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.
2008-02-08 11:06:25 +01:00
Jesper Nilsson 0f229504f8 CRIS v32: Fixup kernel Makefile.
- 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.
2008-02-08 11:06:25 +01:00
Jesper Nilsson ffc8b00d58 CRIS v32: Update entry.S to working order.
- Remove oldset parameter.
- Utilise delay-slot for parameter moving.
- Add kernel_execve as break 13.
- Add new kernel syscalls.
2008-02-08 11:06:25 +01:00
Jesper Nilsson 54ab4d7208 CRIS v32: Whitespace and formatting changes for kernel/ptrace.c 2008-02-08 11:06:24 +01:00
Jesper Nilsson 1ddba0257e CRIS: Minor generic kernel/traps.c changes.
- 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.
2008-02-08 11:06:24 +01:00
Jesper Nilsson 3e1fdc4eac CRIS: Minor fixes to mm/fault.c
- 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.
2008-02-08 11:06:24 +01:00
Jesper Nilsson 642d4ea065 CRIS: Remove unnecessary CVS log from cris/mm/init.c 2008-02-08 11:06:24 +01:00
Jesper Nilsson e908dfc3c0 CRIS v32: Update synchronous serial driver.
Now uses a DMA descriptor ring, which should avoid any unnecessary
pauses in the streams.
2008-02-08 11:06:23 +01:00
Jesper Nilsson f74c31d50c CRIS v32: Add L2 cache initialization code. 2008-02-08 11:06:23 +01:00
Jesper Nilsson 58d0831928 CRIS v32: Add hardware dependent include files and defconfigs for ETRAX FS 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.
2008-02-08 11:06:23 +01:00
Jesper Nilsson 035e111f9a CRIS v32: Add new machine dependent files for Etrax-FS and Artpec-3.
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.
2008-02-08 11:06:23 +01:00
Jesper Nilsson 6107c61fd3 CRIS v32: Add new driver files for Etrax-FS
Adds gpio and nandflash handling for Etrax-FS
2008-02-08 11:06:23 +01:00
Jesper Nilsson 18a1e013cd CRIS v32: Add new driver files for Artpec-3.
Adds gpio and nandflash handling for Artpec-3.
2008-02-08 11:06:22 +01:00
Jesper Nilsson 923dd2a463 CRIS: Rearrange Kconfigs for v10 and v32 to allow compilation without warnings.
- 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)
2008-02-08 11:06:22 +01:00
Bernhard Walle 72a7fe3967 Introduce flags for reserve_bootmem()
This patchset adds a flags variable to reserve_bootmem() and uses the
BOOTMEM_EXCLUSIVE flag in crashkernel reservation code to detect collisions
between crashkernel area and already used memory.

This patch:

Change the reserve_bootmem() function to accept a new flag BOOTMEM_EXCLUSIVE.
If that flag is set, the function returns with -EBUSY if the memory already
has been reserved in the past.  This is to avoid conflicts.

Because that code runs before SMP initialisation, there's no race condition
inside reserve_bootmem_core().

[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: fix powerpc build]
Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: <linux-arch@vger.kernel.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07 08:42:25 -08:00
Julia Lawall 6d9f4c5cfb arch/cris: add a missing iounmap
An extra error handling label is needed for the case where the ioremap has
succeeded.

The problem was detected using the following semantic match
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
type T,T1,T2;
identifier E;
statement S;
expression x1,x2;
constant C;
int ret;
@@

  T E;
  ...
* E = ioremap(...);
  if (E == NULL) S
  ... when != iounmap(E)
      when != if (E != NULL) { ... iounmap(E); ...}
      when != x1 = (T1)E
  if (...) {
    ... when != iounmap(E)
        when != if (E != NULL) { ... iounmap(E); ...}
        when != x2 = (T2)E
(
*   return;
|
*   return C;
|
*   return ret;
)
  }
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:24 -08:00
Jesper Nilsson 2d33d563b1 CRIS: avoid using arch links in Kconfig
Improve including of architecture dependent Kconfig files.

- Always include the architecture dependent Kconfig files.
- Wrap architecture dependent Kconfig files inside an appropriate
  "if ETRAX_ARCH_Vxx" block.

This makes it possible to run the configuration even without the arch links,
which are created later in the build process.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:24 -08:00
Davide Libenzi 4d672e7ac7 timerfd: new timerfd API
This is the new timerfd API as it is implemented by the following patch:

int timerfd_create(int clockid, int flags);
int timerfd_settime(int ufd, int flags,
		    const struct itimerspec *utmr,
		    struct itimerspec *otmr);
int timerfd_gettime(int ufd, struct itimerspec *otmr);

The timerfd_create() API creates an un-programmed timerfd fd.  The "clockid"
parameter can be either CLOCK_MONOTONIC or CLOCK_REALTIME.

The timerfd_settime() API give new settings by the timerfd fd, by optionally
retrieving the previous expiration time (in case the "otmr" parameter is not
NULL).

The time value specified in "utmr" is absolute, if the TFD_TIMER_ABSTIME bit
is set in the "flags" parameter.  Otherwise it's a relative time.

The timerfd_gettime() API returns the next expiration time of the timer, or
{0, 0} if the timerfd has not been set yet.

Like the previous timerfd API implementation, read(2) and poll(2) are
supported (with the same interface).  Here's a simple test program I used to
exercise the new timerfd APIs:

http://www.xmailserver.org/timerfd-test2.c

[akpm@linux-foundation.org: coding-style cleanups]
[akpm@linux-foundation.org: fix ia64 build]
[akpm@linux-foundation.org: fix m68k build]
[akpm@linux-foundation.org: fix mips build]
[akpm@linux-foundation.org: fix alpha, arm, blackfin, cris, m68k, s390, sparc and sparc64 builds]
[heiko.carstens@de.ibm.com: fix s390]
[akpm@linux-foundation.org: fix powerpc build]
[akpm@linux-foundation.org: fix sparc64 more]
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:07 -08:00
Mathieu Desnoyers 125e564582 Move Kconfig.instrumentation to arch/Kconfig and init/Kconfig
Move the instrumentation Kconfig to

arch/Kconfig for architecture dependent options
  - oprofile
  - kprobes

and

init/Kconfig for architecture independent options
  - profiling
  - markers

Remove the "Instrumentation Support" menu. Everything moves to "General setup".
Delete the kernel/Kconfig.instrumentation file.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-02-03 08:58:08 +01:00
Sam Ravnborg 01ba2bdc6b all archs: consolidate init and exit sections in vmlinux.lds.h
This patch consolidate all definitions of .init.text, .init.data
and .exit.text, .exit.data section definitions in
the generic vmlinux.lds.h.

This is a preparational patch - alone it does not buy
us much good.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-28 23:21:17 +01:00
WANG Cong 42d71c44d5 CRIS: Remove 'TOPDIR' from Makefiles
This patch removes TOPDIR from Cris Makefiles.

Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Andreas Schwab <schwab@suse.de>
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
2008-01-28 23:14:37 +01:00
Greg Kroah-Hartman 52840bd628 Kobject: the cris iop_fw_load.c code is broken
This code is really really really broken.  So much so that it's almost
impossible to fix with a simple patch, so just comment out the offending
registration with the kobject core, and mark the driver as broken.

The problem is that the code is trying to register a "raw" struct
device, which is not allowed.  struct device is only for use within the
driver model.  This is being done to try to use the firmware layer which
wants a struct device.  To properly fix this, use something easy, like a
platform device, which is a struct device and can be used for this kind
of thing.

Cc: Mikael Starvik <starvik@axis.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:30 -08:00
Cyrill Gorcunov a56d00bbea CRIS: add missed local_irq_restore call
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@akpm@linux-foundation.org>
2008-01-21 19:39:41 -08:00
Jesper Nilsson b0e86f0a3b CRIS v10: vmlinux.lds.S: ix kernel oops on boot and use common defines
- Move alignment to page size of init data outside ifdef for BLK_DEV_INITRD.
  The reservation up to page size of memory after init data was previously
  not done if BLK_DEV_INITRD was undefined.
  This caused a kernel oops when init memory pages were freed after startup,
  data placed in the same page as the last init memory would also be freed
  and reused, with disastrous results.

- Use macros for initcalls and .text sections.

- Replace hardcoded page size constant with PAGE_SIZE define.

- Change include/asm-cris/page.h to use the _AC macro to instead
  of testing __ASSEMBLY__.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Mikael Starvik <mikael.starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-17 15:38:58 -08:00
Jesper Nilsson bbde25b125 CRIS v10: driver for ds1302 needs to include cris-specific i2c.h
This fixes compilation error where i2c_init wasn't defined.
Also, remove the CVS log and version tags, they are no longer useful.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Mikael Starvik <mikael.starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-14 08:52:23 -08:00
Jesper Nilsson d2d159dbd5 CRIS v10: kernel/time.c needs to include linux/vmstat.h to compile
This fixes compile error when nr_free_pages() from linux/swap.h
expands to global_page_state(NR_FREE_PAGES), but linux/vmstat.h isn't
included to declare global_page_state().

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Mikael Starvik <mikael.starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-14 08:52:23 -08:00
Jesper Nilsson a4858d4dab CRIS v10: correct do_signal to fix oops and clean up signal handling in general
This fixes a kernel panic on boot due to do_signal not being compatible
with it's callers.

- do_signal now returns void, and does not have the previous signal set
  as a parameter.
- Remove sys_rt_sigsuspend, we can use the common one instead.
- Change sys_sigsuspend to be more like x86, don't call do_signal here.
- handle_signal, setup_frame and setup_rt_frame now return -EFAULT
  if we've delivered a segfault, which is used by callers to perform
  necessary cleanup.
- Break long lines, correct whitespace and formatting errors.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Mikael Starvik <mikael.starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-14 08:52:23 -08:00
Bartlomiej Zolnierkiewicz c03a9278ad ide: move CONFIG_IDE_ETRAX to drivers/ide/Kconfig
* Move ETRAX_IDE and friends from arch/cris/arch-{v10,v32}/drivers/Kconfig
  to drivers/ide/Kconfig.

* Don't force selecting ide-disk and ide-cd device drivers
  (please handle this through defconfig if necessary).

* Make ETRAX_IDE depend on BROKEN for the time being
  (it doesn't even compile currently).

Cc: Mikael Starvik <starvik@axis.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27 21:35:55 +01:00
Jesper Nilsson 2f1f53bdc6 CRISv10 fasttimer: Scrap INLINE and name timeval_cmp better
Scrap the local __INLINE__ macro, and rename timeval_cmp to fasttime_cmp.

Inline macro was completely unnecessary since the macro was defined
locally to be inline.
timeval_cmp was inaccurately named since it does comparison on
struct fasttimer_t and not on struct timeval.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Mikael Starvik <mikael.starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:47 -08:00
Jesper Nilsson 2e2cd8bad6 CRISv10 memset library add lineendings to asm
Add \n\ at end of lines inside asm statement to avoid warning.

No change except adding \n\ to end of line and correcting
whitespace has been done.
Removes warning about multi-line string literals when compiling
arch/cris/arch-v10/lib/memset.c

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Mikael Starvik <mikael.starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:47 -08:00
Jesper Nilsson 341ac6e4be CRISv10 string library add lineendings to asm
Add \n\ at end of lines inside asm statement to avoid warning.

No change except adding \n\ to end of line and correcting
whitespace has been done.
Removes warning about multi-line string literals when compiling
arch/cris/arch-v10/lib/string.c

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Mikael Starvik <mikael.starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:47 -08:00
Jesper Nilsson 2b05d2b3b4 CRISv10 usercopy library add lineendings to asm
Removes warning when compiling arch/cris/arch-v10/lib/usercopy.c

No change except adding \n\ on the end of the lines has been done.
Removes warning about multi-line string literals.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Mikael Starvik <mikael.starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:47 -08:00
Jesper Nilsson 57c230a873 CRISv32: add cache flush operations
These are needed due to a cache bug, and can be used to make sure that the
DMA descriptors are flushed to memory and can be safely handled by DMA.

flush_dma_descr - Flush one DMA descriptor.
flush_dma_list - Flush a complete list of DMA descriptors.
cris_flush_cache - Flush the complete cache.
cris_flush_cache_range - Flush only the specified range

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:47 -08:00
Jesper Nilsson d8e5219f9f CRISv10 improve and bugfix fasttimer
Improve and bugfix CRIS v10 fast timers.

- irq_handler_t now only takes two arguments.
- Keep interrupts disabled as long as we have a reference to the
  fasttimer list and only enable them while doing the callback.
  del_fast_timer may be called from other interrupt context.
- Fix bug where debug code could return without calling local_irq_restore.
- Use jiffies instead of usec (change from struct timeval to fasttime_t).
- Don't initialize static variables to zero.
- Remove obsolete #ifndef DECLARE_WAITQUEUE code.
- fast_timer_init should be __initcall.
- Change status/debug variables to unsigned.
- Remove CVS log and CVS id.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Mikael Starvik <mikael.starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:47 -08:00
Jesper Nilsson 3244c77bd3 CRISv10: fix timer interrupt parameters
Fix timer interrupt parameters for CRIS v10.

- irq_handler_t only takes two arguments, use get_irq_regs to get
  regs for profiling.
- Call update_process_times.
- Remove CVS tag.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Mikael Starvik <mikael.starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:47 -08:00
Jesper Nilsson 1b8be1d82d CRIS: remove MTD_AMSTD and MTD_OBSOLETE_CHIPS take two
Remove MTD_AMDSTD and MTD_OBSOLETE_CHIPS from defconfig, Kconfig and code,
instead we'll use MTD_CFI or MTD_JEDECPROBE.

[akpm@linux-foundation.org: codingl-style cleanups]
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:46 -08:00
Alex Unleashed 16ad1b4910 cris: ARRAY_SIZE() cleanup
I'm converting most array size calculations under arch/ to use
ARRAY_SIZE().  This is the patch for CRIS.

Signed-off-by: Alejandro Martinez Ruiz <alex@flawedcode.org>
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:46 -08:00
Jesper Nilsson f150f35232 cris build fixes: defconfig updates
Remove some unused config lines, and add some others that needs to be off
for a succesful compile. This is the minimal set of changes for 2.6.23.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:46 -08:00
Jesper Nilsson 5af26b1862 cris build fixes: fix crisksyms.c
- Add __negdi2 to exported symbols.
- Remove string functions from exported symbols.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:46 -08:00
Jesper Nilsson a8e2a8b227 cris build fixes: setup.c needs param.h
Include linux/param.h for HZ.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:45 -08:00
Jesper Nilsson 0188e60321 cris build fixes: fixes in arch/cris/kernel/time.c
- Remove debug print.
- Change #if to #ifdef to avoid compile time warning if CONFIG_PROFILING
  isn't set.
- Number of parameters to profile_tick has changed, drop the regs parameter.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:45 -08:00
Jesper Nilsson 7b275523ab cris build fixes: corrected and improved NMI and IRQ handling
Corrects compile errors and the following:

- Remove oldset parameter from do_signal and do_notify_resume.

- Modified to fit new consolidated IRQ handling code.

- Reverse check order between external nmi and watchdog nmi to avoid false
  watchdog oops in case of a glitch on the nmi pin.

- Return from an pin-generated NMI the same way as for other interrupts.

- Moved blocking of ethernet rx/tx irq from ethernet interrupt handler to
  low-level asm interrupt handlers.  Fixed in the multiple interrupt
  handler also.

- Add space for thread local storage in thread_info struct.

- Add NO_DMA to Kconfig, and include arch specific Kconfig using arch
  independent path. Include subsystem Kconfigs for pcmcia, usb, i2c,
  rtc and pci.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:45 -08:00
Jesper Nilsson 5978e791fe cris build fixes: sys_cris.c needs fs.h
Include linux/fs.h, needed for do_pipe.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:45 -08:00
Jesper Nilsson eb2746ddc3 cris build fixes: irq fixes
- New file include/asm-cris/irq_regs.h.
- Change handling of registers for do_IRQ.
- Add GENERIC_HARDIRQS to Kconfig.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:45 -08:00
Jesper Nilsson 0c3537ffca cris build fixes: Add missing syscalls
Add missing syscalls to cris architecture.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:45 -08:00
Roel Kluin 5c6ff79d09 cris gpio: undo locks before returning
Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:42 -08:00
Matt LaPlante 01dd2fbf0d typo fixes
Most of these fixes were already submitted for old kernel versions, and were
approved, but for some reason they never made it into the releases.

Because this is a consolidation of a couple old missed patches, it touches both
Kconfigs and documentation texts.

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-20 01:34:40 +02:00
Simon Arlott 49b4ff3304 spelling fixes: arch/cris/
Spelling fixes in arch/cris/.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-20 01:08:50 +02:00
Jean Delvare c03983ac9b Spelling fix: explicitly
From: Jean Delvare <khali@linux-fr.org>

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-19 23:22:55 +02:00
Robert P. J. Day 3a4fa0a25d Fix misspellings of "system", "controller", "interrupt" and "necessary".
Fix the various misspellings of "system", controller", "interrupt" and
"[un]necessary".

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-19 23:10:43 +02:00
Mathieu Desnoyers 09cadedbdc Combine instrumentation menus in kernel/Kconfig.instrumentation
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: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:54 -07:00
Adrian Bunk cba4fbbff2 remove include/asm-*/ipc.h
All asm/ipc.h files do only #include <asm-generic/ipc.h>.

This patch therefore removes all include/asm-*/ipc.h files and moves the
contents of include/asm-generic/ipc.h to include/linux/ipc.h.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:55 -07:00
Linus Torvalds 821f3eff7c Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (40 commits)
  kbuild: introduce ccflags-y, asflags-y and ldflags-y
  kbuild: enable 'make CPPFLAGS=...' to add additional options to CPP
  kbuild: enable use of AFLAGS and CFLAGS on commandline
  kbuild: enable 'make AFLAGS=...' to add additional options to AS
  kbuild: fix AFLAGS use in h8300 and m68knommu
  kbuild: check for wrong use of CFLAGS
  kbuild: enable 'make CFLAGS=...' to add additional options to CC
  kbuild: fix up CFLAGS usage
  kbuild: make modpost detect unterminated device id lists
  kbuild: call export_report from the Makefile
  kbuild: move Kai Germaschewski to CREDITS
  kconfig/menuconfig: distinguish between selected-by-another options and comments
  kconfig: tristate choices with mixed tristate and boolean values
  include/linux/Kbuild: remove duplicate entries
  kbuild: kill backward compatibility checks
  kbuild: kill EXTRA_ARFLAGS
  kbuild: fix documentation in makefiles.txt
  kbuild: call make once for all targets when O=.. is used
  kbuild: pass -g to assembler under CONFIG_DEBUG_INFO
  kbuild: update _shipped files for kconfig syntax cleanup
  ...

Fix up conflicts in arch/um/sys-{x86_64,i386}/Makefile manually.
2007-10-16 11:23:06 -07:00
Thomas Gleixner e5f7178129 CRIS: cleanup struct irqaction initializers
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:43:04 -07:00
Will Schmidt dcca2bde4f During VM oom condition, kill all threads in process group
We have had complaints where a threaded application is left in a bad state
after one of it's threads is killed when we hit a VM: out_of_memory
condition.

Killing just one of the process threads can leave the application in a bad
state, whereas killing the entire process group would allow for the
application to restart, or be otherwise handled, and makes it very obvious
that something has gone wrong.

This change allows the entire process group to be taken down, rather
than just the one thread.

Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ian Molton <spyro@f2s.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <willy@debian.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Cc: Richard Curnow <rc@rc0.org.uk>
Cc: William Lee Irwin III <wli@holomorphy.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:52 -07:00
Alexey Dobriyan 1bcf548293 Consolidate PTRACE_DETACH
Identical handlers of PTRACE_DETACH go into ptrace_request().
Not touching compat code.
Not touching archs that don't call ptrace_request.

Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Acked-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:49 -07:00
Sam Ravnborg 222d394d30 kbuild: enable 'make AFLAGS=...' to add additional options to AS
The variable AFLAGS is a wellknown variable and the usage by
kbuild may result in unexpected behaviour.
On top of that several people over time has asked for a way to
pass in additional flags to gcc.

This patch replace use of AFLAGS with KBUILD_AFLAGS all over
the tree.

Patch was tested on following architectures:
alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k, s390

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-15 21:59:31 +02:00
Sam Ravnborg a0f97e06a4 kbuild: enable 'make CFLAGS=...' to add additional options to CC
The variable CFLAGS is a wellknown variable and the usage by
kbuild may result in unexpected behaviour.
On top of that several people over time has asked for a way to
pass in additional flags to gcc.

This patch replace use of CFLAGS with KBUILD_CFLAGS all over the
tree and enabling one to use:
make CFLAGS=...
to specify additional gcc commandline options.

One usecase is when trying to find gcc bugs but other
use cases has been requested too.

Patch was tested on following architectures:
alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k

Test was simple to do a defconfig build, apply the patch and check
that nothing got rebuild.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-14 22:21:35 +02:00
Bartlomiej Zolnierkiewicz 2195dadf85 ide: fix hidden dependencies on CONFIG_IDE_GENERIC
Some host drivers depend on CONFIG_IDE_GENERIC to do the probing but their
config options lack explicit dependencies on IDE_GENERIC.  In the long-term
these host drivers should be fixed to do the probing themselves but for now
fix them by making their config options select CONFIG_IDE_GENERIC.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-08-20 22:42:54 +02:00
Adrian Bunk 4a2a4da439 cris: drivers/cdrom/Kconfig no longer exists
scripts/kconfig/conf -d arch/cris/Kconfig
arch/cris/Kconfig:183: can't open file "drivers/cdrom/Kconfig"

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-11 15:47:41 -07:00
Linus Torvalds efffbeee5b Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (33 commits)
  xtensa: use DATA_DATA in xtensa
  powerpc: add missing DATA_DATA to powerpc
  cris: use DATA_DATA in cris
  kallsyms: remove usage of memmem and _GNU_SOURCE from scripts/kallsyms.c
  kbuild: use -fno-optimize-sibling-calls unconditionally
  kconfig: reset generated values only if Kconfig and .config agree.
  kbuild: fix the warning when running make tags
  kconfig: strip 'CONFIG_' automatically in kernel configuration search
  kbuild: use POSIX BRE in headers install target
  Whitelist references from __dbe_table to .init
  modpost white list pattern adjustment
  kbuild: do section mismatch check on full vmlinux
  kbuild: whitelist references from variables named _timer to .init.text
  kbuild: remove hardcoded _logo names from modpost
  kbuild: remove hardcoded apic_es7000 from modpost
  kbuild: warn about references from .init.text to .exit.text
  kbuild: consolidate section checks
  kbuild: refactor code in modpost to improve maintainability
  kbuild: ignore section mismatch warnings originating from .note section
  kbuild: .paravirtprobe section is obsolete, so modpost doesn't need to handle it
  ...
2007-07-19 14:28:19 -07:00
Yoann Padioleau dd00cc486a some kmalloc/memset ->kzalloc (tree wide)
Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc).

Here is a short excerpt of the semantic patch performing
this transformation:

@@
type T2;
expression x;
identifier f,fld;
expression E;
expression E1,E2;
expression e1,e2,e3,y;
statement S;
@@

 x =
- kmalloc
+ kzalloc
  (E1,E2)
  ...  when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\)
- memset((T2)x,0,E1);

@@
expression E1,E2,E3;
@@

- kzalloc(E1 * E2,E3)
+ kcalloc(E1,E2,E3)

[akpm@linux-foundation.org: get kcalloc args the right way around]
Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Cc: Bryan Wu <bryan.wu@analog.com>
Acked-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Dave Airlie <airlied@linux.ie>
Acked-by: Roland Dreier <rolandd@cisco.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Acked-by: Pierre Ossman <drzeus-list@drzeus.cx>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Greg KH <greg@kroah.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:50 -07:00
Fenghua Yu 5fb7dc37dc define new percpu interface for shared data
per cpu data section contains two types of data.  One set which is
exclusively accessed by the local cpu and the other set which is per cpu,
but also shared by remote cpus.  In the current kernel, these two sets are
not clearely separated out.  This can potentially cause the same data
cacheline shared between the two sets of data, which will result in
unnecessary bouncing of the cacheline between cpus.

One way to fix the problem is to cacheline align the remotely accessed per
cpu data, both at the beginning and at the end.  Because of the padding at
both ends, this will likely cause some memory wastage and also the
interface to achieve this is not clean.

This patch:

Moves the remotely accessed per cpu data (which is currently marked
as ____cacheline_aligned_in_smp) into a different section, where all the data
elements are cacheline aligned. And as such, this differentiates the local
only data and remotely accessed data cleanly.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: <linux-arch@vger.kernel.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:44 -07:00
Akinobu Mita 68fc4fabca unregister_chrdev(): ignore the return value
unregister_chrdev() always returns 0.  There is no need to check the return
value.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:43 -07:00
Nick Piggin 83c54070ee mm: fault feedback #2
This patch completes Linus's wish that the fault return codes be made into
bit flags, which I agree makes everything nicer.  This requires requires
all handle_mm_fault callers to be modified (possibly the modifications
should go further and do things like fault accounting in handle_mm_fault --
however that would be for another patch).

[akpm@linux-foundation.org: fix alpha build]
[akpm@linux-foundation.org: fix s390 build]
[akpm@linux-foundation.org: fix sparc build]
[akpm@linux-foundation.org: fix sparc64 build]
[akpm@linux-foundation.org: fix ia64 build]
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ian Molton <spyro@f2s.com>
Cc: Bryan Wu <bryan.wu@analog.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Matthew Wilcox <willy@debian.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Cc: Richard Curnow <rc@rc0.org.uk>
Cc: William Lee Irwin III <wli@holomorphy.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp>
Cc: Chris Zankel <chris@zankel.net>
Acked-by: Kyle McMartin <kyle@mcmartin.ca>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[ Still apparently needs some ARM and PPC loving - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:41 -07:00
Alexey Dobriyan f284ce7269 PTRACE_POKEDATA consolidation
Identical implementations of PTRACE_POKEDATA go into generic_ptrace_pokedata()
function.

AFAICS, fix bug on xtensa where successful PTRACE_POKEDATA will nevertheless
return EPERM.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:03 -07:00
Alexey Dobriyan 7664732315 PTRACE_PEEKDATA consolidation
Identical implementations of PTRACE_PEEKDATA go into generic_ptrace_peekdata()
function.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:03 -07:00
Mathieu Desnoyers 5c617c6ff0 cris: use DATA_DATA in cris
* Sam Ravnborg (sam@ravnborg.org) wrote:
> From your patch it looks like I originally missed out
> powerpc + xtensa when introducing DATA_DATA - would be nice if
> you could fix that.
>

Use DATA_DATA in CRIS

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-07-17 14:55:38 +02:00
Jesper Juhl d52988023a Remove the last few UMSDOS leftovers
The UMSDOS filesystem was removed back in 2.6.11, but some tiny bits stuck
around.  This patch removes the few remaining leftovers.  The only things
left behind after this are the entries in the CREDITS file and the ioctl
number in Documentation/ioctl-number.txt as documentation.

This third (hopefully final) version of the patch doesn't edit the
arch/um/config.release file, since Jeff Dike pointed out to me that it
should die completely, and asked me to remove it from my patch as he'll
send in a seperate patch removing the file completely.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 09:05:51 -07:00
Robert P. J. Day 7ff9057db7 CRIS: replace old-style member inits with designated inits
Replace the old-style structure member initializers with designated
initializers.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 09:05:38 -07:00
David Sterba 3dde6ad8fc Fix trivial typos in Kconfig* files
Fix several typos in help text in Kconfig* files.

Signed-off-by: David Sterba <dave@jikos.cz>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-05-09 07:12:20 +02:00
Guennadi Liakhovetski b247e8aaf2 dma_declare_coherent_memory wrong allocation
dma_declare_coherent_memory() allocates a bitmap 1 bit per page, it
calculates the bitmap size based on size of long, but allocates bytes...
Thanks to James Bottomley for clarifications and corrections.

Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: James Bottomley <James.Bottomley@SteelEye.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:14 -07:00
Randy Dunlap e63340ae6b header cleaning: don't include smp_lock.h when not used
Remove includes of <linux/smp_lock.h> where it is not used/needed.
Suggested by Al Viro.

Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc,
sparc64, and arm (all 59 defconfigs).

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:07 -07:00
Robert P. J. Day 7a3e965abf CRIS: remove code related to pre-2.2 kernel
Remove conditionals and code related to checking for a pre-2.2 kernel.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:13:00 -07:00
Cyrill Gorcunov 542401d97a CRIS: check for memory allocation
Add checking for allocated memory.  Indents and spaces are added to be
familiar with the kernel coding style.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Acked-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:13:00 -07:00
Jeremy Fitzhardinge b6e3590f81 [PATCH] x86: Allow percpu variables to be page-aligned
Let's allow page-alignment in general for per-cpu data (wanted by Xen, and
Ingo suggested KVM as well).

Because larger alignments can use more room, we increase the max per-cpu
memory to 64k rather than 32k: it's getting a little tight.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2007-05-02 19:27:12 +02:00
Eric W. Biederman bba6f6fc68 [PATCH] MSI-X: fix resume crash
So I think the right solution is to simply make pci_enable_device just
flip enable bits and move the rest of the work someplace else.

However a thorough cleanup is a little extreme for this point in the
release cycle, so I think a quick hack that makes the code not stomp the
irq when msi irq's are enabled should be the first fix.  Then we can
later make the code not change the irqs at all.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-28 13:59:37 -07:00
Yoichi Yuasa 3a0ee2ce8c [PATCH] fix memory leak in dma_declare_coherent_memory()
When it goes to free1_out, dev->dma_mem has not been freed.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-01 14:53:39 -08:00
Nicolas Kaiser e34f80cd86 arch/cris: typo in KERN_INFO
Typo in KERN_INFO.

Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-02-17 20:12:12 +01:00
Arjan van de Ven 5dfe4c964a [PATCH] mark struct file_operations const 2
Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

[akpm@osdl.org: sparc64 fix]
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:44 -08:00
Alon Bar-Lev 87e1f9c6dc [PATCH] Dynamic kernel command-line: cris
1. Rename saved_command_line into boot_command_line.
2. Set cris_command_line as __initdata.

Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:37 -08:00
Al Viro 5ea8176994 [PATCH] sort the devres mess out
* Split the implementation-agnostic stuff in separate files.
* Make sure that targets using non-default request_irq() pull
  kernel/irq/devres.o
* Introduce new symbols (HAS_IOPORT and HAS_IOMEM) defaulting to positive;
  allow architectures to turn them off (we needed these symbols anyway for
  dependencies of quite a few drivers).
* protect the ioport-related parts of lib/devres.o with CONFIG_HAS_IOPORT.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11 11:18:07 -08:00
Alexey Dobriyan b035b6de24 [PATCH] Consolidate default sched_clock()
Use attribute(weak).

Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11 10:51:28 -08:00
Jean-Paul Saman 67d38229df [PATCH] disable init/initramfs.c: architectures
Update all arch/*/kernel/vmlinux.lds.S to not include space for initramfs
when CONFIG_BLK_DEV_INITRAMFS is not selected.  This saves another 4 kbytes
on most platfoms (some reserve PAGE_SIZE for initramfs).

Signed-off-by: Jean-Paul Saman <jean-paul.saman@nxp.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11 10:51:25 -08:00
Jiri Kosina 5cf885d01f [PATCH] CRIS: TLB handling: turn local_save_flags() + local_irq_disable() into local_irq_save()
TLB handling for CRIS contains local_irq_disable() after local_save_flags().
Turn this into local_irq_save().

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11 10:51:21 -08:00
Ahmed S. Darwish 8447157a1a [PATCH] CRIS: user ARRAY_SIZE macro when appropriate
Use ARRAY_SIZE macro already defined in linux/kernel.h

Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11 10:51:20 -08:00
Jiri Kosina 7c101b7b13 [PATCH] CRIS: local_irq_disable() is redundant after local_irq_save()
arch/cris/arch-v10/kernel/time.c::get_ns_in_jiffie() contains
local_irq_disable() call after local_irq_save().  This looks redundant.

arch/cris/kernel/time.c::do_gettimeofday() contains local_irq_disable() call
after local_irq_save().  This looks redundant.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11 10:51:20 -08:00
Christoph Lameter 66701b1499 [PATCH] optional ZONE_DMA: introduce CONFIG_ZONE_DMA
This patch simply defines CONFIG_ZONE_DMA for all arches.  We later do special
things with CONFIG_ZONE_DMA after the VM and an arch are prepared to work
without ZONE_DMA.

CONFIG_ZONE_DMA can be defined in two ways depending on how an architecture
handles ISA DMA.

First if CONFIG_GENERIC_ISA_DMA is set by the arch then we know that the arch
needs ZONE_DMA because ISA DMA devices are supported.  We can catch this in
mm/Kconfig and do not need to modify arch code.

Second, arches may use ZONE_DMA in an unknown way.  We set CONFIG_ZONE_DMA for
all arches that do not set CONFIG_GENERIC_ISA_DMA in order to insure backwards
compatibility.  The arches may later undefine ZONE_DMA if their arch code has
been verified to not depend on ZONE_DMA.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Andi Kleen <ak@suse.de>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <willy@debian.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11 10:51:18 -08:00
Gautham R Shenoy b282b6f8a8 [PATCH] Change cpu_up and co from __devinit to __cpuinit
Compiling the kernel with CONFIG_HOTPLUG = y and CONFIG_HOTPLUG_CPU = n
with CONFIG_RELOCATABLE = y generates the following modpost warnings

WARNING: vmlinux - Section mismatch: reference to .init.data: from
.text between '_cpu_up' (at offset 0xc0141b7d) and 'cpu_up'
WARNING: vmlinux - Section mismatch: reference to .init.data: from
.text between '_cpu_up' (at offset 0xc0141b9c) and 'cpu_up'
WARNING: vmlinux - Section mismatch: reference to .init.text:__cpu_up
from .text between '_cpu_up' (at offset 0xc0141bd8) and 'cpu_up'
WARNING: vmlinux - Section mismatch: reference to .init.data: from
.text between '_cpu_up' (at offset 0xc0141c05) and 'cpu_up'
WARNING: vmlinux - Section mismatch: reference to .init.data: from
.text between '_cpu_up' (at offset 0xc0141c26) and 'cpu_up'
WARNING: vmlinux - Section mismatch: reference to .init.data: from
.text between '_cpu_up' (at offset 0xc0141c37) and 'cpu_up'

This is because cpu_up, _cpu_up and __cpu_up (in some architectures) are
defined as __devinit
AND
__cpu_up calls some __cpuinit functions.

Since __cpuinit would map to __init with this kind of a configuration,
we get a .text refering .init.data warning.

This patch solves the problem by converting all of __cpu_up, _cpu_up
and cpu_up from __devinit to __cpuinit. The approach is justified since
the callers of cpu_up are either dependent on CONFIG_HOTPLUG_CPU or
are of __init type.

Thus when CONFIG_HOTPLUG_CPU=y, all these cpu up functions would land up
in .text section, and when CONFIG_HOTPLUG_CPU=n, all these functions would
land up in .init section.

Tested on a i386 SMP machine running linux-2.6.20-rc3-mm1.

Signed-off-by: Gautham R Shenoy <ego@in.ibm.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11 18:18:20 -08:00
Robert P. J. Day 5cbded585d [PATCH] getting rid of all casts of k[cmz]alloc() calls
Run this:

	#!/bin/sh
	for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
	  echo "De-casting $f..."
	  perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
	done

And then go through and reinstate those cases where code is casting pointers
to non-pointers.

And then drop a few hunks which conflicted with outstanding work.

Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Karsten Keil <kkeil@suse.de>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Ian Kent <raven@themaw.net>
Cc: Steven French <sfrench@us.ibm.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13 09:05:58 -08:00
David Howells f0d1b0b30d [PATCH] LOG2: Implement a general integer log2 facility in the kernel
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: David 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: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08 08:28:51 -08:00
Josef Sipek d817be9ca8 [PATCH] struct path: convert cris
Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08 08:28:44 -08:00
Peter Zijlstra 6edaf68a87 [PATCH] mm: arch do_page_fault() vs in_atomic()
In light of the recent pagefault and filemap_copy_from_user work I've gone
through all the arch pagefault handlers to make sure the inc_preempt_count()
'feature' works as expected.

Several sections of code (including the new filemap_copy_from_user) rely on
the fact that faults do not take locks under increased preempt count.

arch/x86_64 - good
arch/powerpc - good
arch/cris - fixed
arch/i386 - good
arch/parisc - fixed
arch/sh - good
arch/sparc - good
arch/s390 - good
arch/m68k - fixed
arch/ppc - good
arch/alpha - fixed
arch/mips - good
arch/sparc64 - good
arch/ia64 - good
arch/arm - fixed
arch/um - good
arch/avr32 - good
arch/h8300 - NA
arch/m32r - good
arch/v850 - good
arch/frv - fixed
arch/m68knommu - NA
arch/arm26 - fixed
arch/sh64 - fixed
arch/xtensa - good

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:21 -08:00