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2008-04-17Generic semaphore implementationMatthew Wilcox
Semaphores are no longer performance-critical, so a generic C implementation is better for maintainability, debuggability and extensibility. Thanks to Peter Zijlstra for fixing the lockdep warning. Thanks to Harvey Harrison for pointing out that the unlikely() was unnecessary. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Acked-by: Ingo Molnar <mingo@elte.hu>
2008-03-03[Blackfin] arch: fix atomic and32/xor32 comments and ENDPROC markingsMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-03-03[Blackfin] arch: fix bug - allow SDH driver to be used as moduleMichael Hennerich
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-03-06[Blackfin] arch: to kill syscalls missing warning by adding new timerfd syscallsBryan Wu
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-29[Blackfin] arch: kill section mismatch warningsBryan Wu
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-29[Blackfin] arch: handle the most common L1 shrinkage case (L1 does not exist ↵Mike Frysinger
for a part) so that any parts labeled for L1 instead get placed into external memory sections Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-25[Blackfin] arch: make sure we have proper description/copyright/license linesMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-25[Blackfin] arch: Fix CONFIG_PM support for BF561Michael Hennerich
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-25[Blackfin] arch: Remove DPMC char driver optionMichael Hennerich
Remove redundant/obsolete/dead code from DPMC driver Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-25[Blackfin] arch: Cleanup abd Simplify:Michael Hennerich
- Simplify init_arch_irq - Make code more readable - Remove useless SSYNCs - Fix comments Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-25[Blackfin] arch: fix bug - linux-2.6.24 (delayed) disable IRQ feature not ↵Michael Hennerich
functional for handle_simple_irq Bypass delayed disable feature by implementing chip->disable and chip->enable. http://lkml.org/lkml/2008/2/19/115 Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-25[Blackfin] arch: make sure we export the _bfin_swrst symbol as modules (like ↵Mike Frysinger
the watchdog) need it Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-25[Blackfin] arch: punt the simple ad5304 spi driver now that the generic ↵Mike Frysinger
spidev driver lets you do it from userspace Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-25[Blackfin] arch: fix bug - Move IWR Enable All to the end of init_arch_irq ↵Michael Hennerich
otherwise it fails Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-25[Blackfin] arch: grab mac address from OTP on BF527-EZKITMike Frysinger
The bf527-ezkit stores the mac address in OTP, so grab it from there rather than flash Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-25[Blackfin] arch: Fix bug - Setting peripheral_map only when dma channel is ↵Sonic Zhang
UART2/3. Singed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-22[Blackfin] arch: add board resources for new simple-gpio char driverMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-25[Blackfin] arch: fix bug - set right partition size in the board filesMike Frysinger
- set default u-boot partition size to 256k - modify the offset with the size change - use mtd defines (append for offset and full for size) where applicable rather than churning constants when we dont have to Signed-off-by: Grace Pan <grace.pan@analog.com> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-22[Blackfin] arch: Update default configSonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-22[Blackfin] arch: add fixed code to the memory map outputMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-22[Blackfin] arch: add handling for the mach symlink in the `make V=1` caseMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-22[Blackfin] arch: respect `make -s` when creating the asm/mach symlinkMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-22[Blackfin] arch: fix bug add missing header fileMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-14d_path: Make d_path() use a struct pathJan Blunck
d_path() is used on a <dentry,vfsmount> pair. Lets use a struct path to reflect this. [akpm@linux-foundation.org: fix build in mm/memory.c] Signed-off-by: Jan Blunck <jblunck@suse.de> Acked-by: Bryan Wu <bryan.wu@analog.com> Acked-by: Christoph Hellwig <hch@infradead.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Neil Brown <neilb@suse.de> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-13xtime_lock vs update_process_timesPeter Zijlstra
Commit d3d74453c34f8fd87674a8cf5b8a327c68f22e99 ("hrtimer: fixup the HRTIMER_CB_IRQSAFE_NO_SOFTIRQ fallback") broke several archs, and since only Russell bothered to merge the fix, and Greg to ACK his arch, I'm sending this for merger. I have confirmation that the Alpha bit results in a booting kernel. That leaves: blackfin, frv, sh and sparc untested. The deadlock in question was found by Russell: IRQ handle -> timer_tick() - xtime seqlock held for write -> update_process_times() -> run_local_timers() -> hrtimer_run_queues() -> hrtimer_get_softirq_time() - tries to get a read lock Now, Thomas assures me the fix is trivial, only do_timer() needs to be done under the xtime_lock, and update_process_times() can savely be removed from under it. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Greg Ungerer <gerg@uclinux.org> CC: Richard Henderson <rth@twiddle.net> CC: Bryan Wu <bryan.wu@analog.com> CC: David Howells <dhowells@redhat.com> CC: Paul Mundt <lethal@linux-sh.org> CC: William Irwin <wli@holomorphy.com> Acked-by: Ingo Molnar <mingo@elte.hu> Acked-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-09ide: introduce HAVE_IDESam Ravnborg
To allow flexible configuration of IDE introduce HAVE_IDE. All archs except arm, um and s390 unconditionally select it. For arm the actual configuration determine if IDE is supported. This is a step towards introducing drivers/Kconfig for arm. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Russell King - ARM Linux <linux@arm.linux.org.uk> Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-09[Blackfin] arch: fix build fails only include header files when enabledMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-07[Blackfin] arch: declare default INSTALL_PATH for Blackfin portsMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-09[Blackfin] arch: Encourage users to use the spidev character driver: Provide ↵Michael Hennerich
platform support - Enable kernel generic spidev driver for blackfin SPI ADC - spi_adc driver, document and test sample not synced Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-02[Blackfin] arch: Enable UART2 and UART3 for bf548Sonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-02[Blackfin] arch: Enable NET2272 on BF561-EZkit - remove request_mem_regionMichael Hennerich
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-02[Blackfin] arch:Fix BUG [#3876] pfbutton test for BTN3 on bf533 don't show ↵Michael Hennerich
complete info - Buttons on the BF533-STAMP board are not inverted - Fix spurious GPIO Interrupt caused during set irq_type for edge triggered interrupts Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-02[Blackfin] arch: fix building with mtd uclinux by putting the mtd_phys ↵Mike Frysinger
option into the function it actually gets used in Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-02[Blackfin] arch: simpler header and update datesMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-02[Blackfin] arch: move the init sections to the end of memoryMike Frysinger
Move the init sections to the end of memory so that after they are free, run time memory is all continugous - this should help decrease memory fragementation. When doing this, we also pack some of the other sections a little closer together, to make sure we don't waste memory. To make this happen, we need to rename the .data.init_task section to .init_task.data, so it doesn't get picked up by the linker script glob. Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-02[Blackfin] arch: change the trace buffer control start/stop logic in the ↵Mike Frysinger
exception handlers To save/restore the trace buffer control so that if we take an exception after turning off the trace buffer at a higher level we dont inadvertently turn the trace buffer back on Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-02[Blackfin] arch: fix typo in printk messageMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-02[Blackfin] arch: this is an ezkit, not a stamp, so fixup the init function nameMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-02[Blackfin] arch: add slightly better help text for CPLB_INFOMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-02[Blackfin] arch: Fix BUG - Enable ISP1362 driver to work ok with BF561Michael Hennerich
This fixes a bug (zero pointer access) only seen on BF561, during USB Mass Storage/SCSI Host initialization. It appears to be related to registering a none existing CPU Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-02[Blackfin] arch: Fix header file informationMichael Hennerich
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-02[Blackfin] arch: Add Support for ISP1362Michael Hennerich
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-09[Blackfin] arch: add support for cmdline partitioning to the BF533-STAMP ↵Mike Frysinger
flash map driver and enable it as a module by default Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-09[Blackfin] arch: hook up set_irq_wake in Blackfin's irq codeMichael Hennerich
- Add support for irq_wake on system and gpio interrupts - Remove outdated kernel options - Add option to select default PM mode - Fix various places where SIC_IWRx was only handled partially Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-09[Blackfin] arch: Merge BF561 support into ints-priorityMichael Hennerich
Merge single core ints-priority-sc.c and dual core ints-priority-dc.c into one common code ints-priority.c Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-09[Blackfin] arch: add "memmap=nn[KMG]@ss[KMG]" and "memmap=nn[KMG]$ss[KMG]" ↵Yi Li
options to blackfin, based on arch/i386/kernel/e820.c Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-02[Blackfin] arch: error out if ANOMALY_05000263 applies while enabling the MPUMike Frysinger
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-08procfs: constify function pointer tablesJan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Mike Frysinger <vapier@gentoo.org> Acked-By: David Howells <dhowells@redhat.com> Acked-by: Bryan Wu <bryan.wu@analog.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-08aout: remove unnecessary inclusions of {asm, linux}/a.out.hDavid Howells
Remove now unnecessary inclusions of {asm,linux}/a.out.h. [akpm@linux-foundation.org: fix alpha build] Signed-off-by: David Howells <dhowells@redhat.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07Introduce flags for reserve_bootmem()Bernhard Walle
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>
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