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* Blackfin: wire up new syncfs syscallMike Frysinger2011-03-232-1/+3
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: SMP: flush CoreB cache when shutting downGraf Yang2011-03-231-0/+9
| | | | | | | | | When CoreB wakes up, it needs to read variables that CoreA might have modified, and might be in CoreB's cache. So kill CoreB's cache before going to sleep so that when we wake up, we are in a coherent state. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: ip0x: fix unused variable warningMike Frysinger2011-03-181-2/+0
| | | | | | | The previous commit that changed this code to the common GPIO layers forgot to delete the local and now unused "i" variable. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: punt unused HDMA masksMike Frysinger2011-03-185-93/+0
| | | | | | | | | No code uses these, and the short define names are polluting the global namespace where they collide with things like common irq files. So just punt the damned things. If in the future we need HDMA support, we can make a standalone header for these things. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: wire up new syscallsMike Frysinger2011-03-182-1/+7
| | | | | | Hook up name_to_handle_at, open_by_handle_at, and clock_adjtime. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin/ipipe: restore pipeline bits in irqflagsPhilippe Gerum2011-03-181-10/+77
| | | | | | | | This patch fixes the Blackfin irqflags to make them I-pipe aware anew, after the introduction of the hard_local_irq_*() API. Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin/ipipe: fix deferred pipeline sync for the root stagePhilippe Gerum2011-03-182-3/+14
| | | | | | | | | | | | | This patch makes sure to sync the pipeline for the root stage only from the outer interrupt level, when resuming kernel code after an interrupt. This fixes a bug causing EVT15 to be spuriously popped off upon nested interrupts, which in turn would cause the preempted kernel code to resume without supervisor privileges. Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin/ipipe: upgrade to I-pipe mainlinePhilippe Gerum2011-03-184-114/+117
| | | | | | | | | | | | This patch introduces Blackfin-specific bits to support the current tip of the interrupt pipeline development, mainly: - 2/3-level interrupt maps (sparse IRQs) - generic virq handling - sysinfo v2 format for ipipe_get_sysinfo() Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: cpufreq: fix typosMichael Hennerich2011-03-181-3/+3
| | | | | | | No functional changes here. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: enable GENERIC_HARDIRQS_NO_DEPRECATEDThomas Gleixner2011-03-181-0/+1
| | | | | | | All chips converted. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: SMP: convert to irq chip functionsMike Frysinger2011-03-181-1/+5
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: use accessor functions in show_interrupts()Thomas Gleixner2011-03-181-4/+6
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: use proper wrapper functions for modifying irq statusThomas Gleixner2011-03-184-4/+4
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert gpio irq_chip to new functionsThomas Gleixner2011-03-181-44/+48
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert mac irq_chip to new functionsThomas Gleixner2011-03-181-7/+11
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert error irq_chip to new functionsThomas Gleixner2011-03-181-7/+7
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert internal irq_chip to new functionsThomas Gleixner2011-03-181-13/+28
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert core irq_chip to new functionsThomas Gleixner2011-03-181-11/+11
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: use proper wrappers for irq_descThomas Gleixner2011-03-181-9/+5
| | | | | | | Fixup the open coded access to irq_desc and use the proper wrappers. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: optimize startup codeMike Frysinger2011-03-181-69/+41
| | | | | | | Take advantage of more Blackfin-specific insns, and only initialize registers required by the ABI. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: SMP: work around anomaly 05000491Sonic Zhang2011-03-188-12/+74
| | | | | | | | | | | | | | | | In order to safely work around anomaly 05000491, we have to execute IFLUSH from L1 instruction sram. The trouble with multi-core systems is that all L1 sram is visible only to the active core. So we can't just place the functions into L1 and call it directly. We need to setup a jump table and place the entry point in external memory. This will call the right func based on the active core. In the process, convert from the manual relocation of a small bit of code into Core B's L1 to the more general framework we already have in place for loading arbitrary pieces of code into L1. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: SMP: implement cpu_freq supportGraf Yang2011-03-186-34/+70
| | | | | | | Re-use some of the existing cpu hotplugging code in the process. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: split optimization settings moreMike Frysinger2011-03-183-15/+47
| | | | | | | | | | | We need to place icache flush funcs into L1 inst sram to work around a hardware anomaly. But this currently breaks SMP support as the L1 inst sram is per-core and cannot be called directly. So in preparation for making that work, split the two options. Further, split out the SMP depend so that we can allow some for SMP. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: SMP: disable preempt with smp_processor_id to send messagesSonic Zhang2011-03-181-6/+8
| | | | | | | | The smp_processor_id() API requires that preempt be disabled when calling it, so make sure it is when we go to send messages to other processors. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: SMP: delay enabling caches until CPU is initializedsteven miao2011-03-181-2/+2
| | | | | | | | Defer bfin_setup_caches(cpu) to avoid unexpected faults due to the cpu state not yet being fully initialized. Signed-off-by: steven miao <realmz6@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: SMP: use standard cache functionsMike Frysinger2011-03-181-3/+3
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: SMP: PERCPU section should be PAGE alignedsteven miao2011-03-181-1/+1
| | | | | | | | Common code checks the alignment of some of the variables and calls BUG() if they aren't page aligned. Signed-off-by: steven miao <realmz6@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: ADI boards: enable pseudo debug insns supportMike Frysinger2011-03-1811-0/+11
| | | | | | | We use these insns when testing, so enable them by default for all of our development boards. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: kgdb: drop dead KGDB_THR_PROC_SWAP for SMP systemsSonic Zhang2011-03-181-4/+0
| | | | | | | Common code no longer defines this, so stop using it. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: dnp5370: drop MMC card detect supportAndreas Schallenberg2011-03-181-20/+0
| | | | | | | | The board doesn't actually have a pin hooked up to do card detection, so punt the code for it. Signed-off-by: Andreas Schallenberg <Andreas.Schallenberg@3alitydigital.de> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: add bfin_write_{or,and} helpersMike Frysinger2011-03-181-2/+14
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: bf548-ezkit: add CAN1 supportAaron Wu2011-03-181-7/+48
| | | | | Signed-off-by: Aaron Wu <aaronwu06@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: bf54x: add kconfig for UART2/3 DMA channel assignmentssteven miao2011-03-184-21/+102
| | | | | | | | | | The BF54x lacks dedicated DMA channels for the UART peripherals and need to be muxed between others. So add a kconfig option so people can select which channels the UARTs will use so they can pick between SPORTs and the less commonly used EPPI/PIXC peripherals. Signed-off-by: steven miao <realmz6@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: SMP: avoid section mismatch warningsSonic Zhang2011-03-181-1/+1
| | | | | | | | Since coreb_trampoline_start() calls coreb_start(), they need to be in the same section. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Merge branch 'for-2.6.39' of ↵Linus Torvalds2011-03-161-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu * 'for-2.6.39' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: percpu, x86: Add arch-specific this_cpu_cmpxchg_double() support percpu: Generic support for this_cpu_cmpxchg_double() alpha: use L1_CACHE_BYTES for cacheline size in the linker script percpu: align percpu readmostly subsection to cacheline Fix up trivial conflict in arch/x86/kernel/vmlinux.lds.S due to the percpu alignment having changed ("x86: Reduce back the alignment of the per-CPU data section")
| * percpu: align percpu readmostly subsection to cachelineTejun Heo2011-01-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently percpu readmostly subsection may share cachelines with other percpu subsections which may result in unnecessary cacheline bounce and performance degradation. This patch adds @cacheline parameter to PERCPU() and PERCPU_VADDR() linker macros, makes each arch linker scripts specify its cacheline size and use it to align percpu subsections. This is based on Shaohua's x86 only patch. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Shaohua Li <shaohua.li@intel.com>
* | Merge branch 'timers-core-for-linus' of ↵Linus Torvalds2011-03-161-4/+2
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (62 commits) posix-clocks: Check write permissions in posix syscalls hrtimer: Remove empty hrtimer_init_hres_timer() hrtimer: Update hrtimer->state documentation hrtimer: Update base[CLOCK_BOOTTIME].offset correctly timers: Export CLOCK_BOOTTIME via the posix timers interface timers: Add CLOCK_BOOTTIME hrtimer base time: Extend get_xtime_and_monotonic_offset() to also return sleep time: Introduce get_monotonic_boottime and ktime_get_boottime hrtimers: extend hrtimer base code to handle more then 2 clockids ntp: Remove redundant and incorrect parameter check mn10300: Switch do_timer() to xtimer_update() posix clocks: Introduce dynamic clocks posix-timers: Cleanup namespace posix-timers: Add support for fd based clocks x86: Add clock_adjtime for x86 posix-timers: Introduce a syscall for clock tuning. time: Splitout compat timex accessors ntp: Add ADJ_SETOFFSET mode bit time: Introduce timekeeping_inject_offset posix-timer: Update comment ... Fix up new system-call-related conflicts in arch/x86/ia32/ia32entry.S arch/x86/include/asm/unistd_32.h arch/x86/include/asm/unistd_64.h arch/x86/kernel/syscall_table_32.S (name_to_handle_at()/open_by_handle_at() vs clock_adjtime()), and some due to movement of get_jiffies_64() in: kernel/time.c
| * | blackfin: Switch from do_timer() to xtime_update()Torben Hohn2011-01-311-4/+2
| |/ | | | | | | | | | | | | | | | | | | | | | | | | xtime_update() takes the xtime_lock itself. Signed-off-by: Torben Hohn <torbenh@gmx.de> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: johnstul@us.ibm.com Cc: hch@infradead.org Cc: yong.zhang0@gmail.com LKML-Reference: <20110127145931.23248.33917.stgit@localhost> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | Blackfin: iflush: update anomaly 05000491 workaroundMike Frysinger2011-03-041-0/+2
| | | | | | | | | | | | Recent feedback from design says we need three NOPs in the hardware loop. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Blackfin: outs[lwb]: make sure count is greater than 0Mike Frysinger2011-03-041-4/+12
| | | | | | | | | | | | | | | | Some devices will use the outs* funcs with a length of zero, so make sure we do not write any data in that case. Reported-by: Gilbert Inho <gneny@edevice.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | serial: bfin_5xx: split uart RX lock from uart port lock to avoid deadlockSonic Zhang2011-02-031-0/+2
|/ | | | | | | | | | | | | | | | | | | | The RX lock is used to protect the RX buffer from concurrent access in DMA mode between the timer and RX interrupt routines. It is independent from the uart lock which is used to protect the TX buffer. It is possible for a uart TX transfer to be started up from the RX interrupt handler if low latency is enabled. So we need to split the locks to avoid deadlocking in this situation. In PIO mode, the RX lock is not necessary because the handle_simple_irq and handle_level_irq functions ensure driver interrupt handlers are called once on one core. And now that the RX path has its own lock, the TX interrupt has nothing to do with the RX path, so disabling it at the same time. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* blackfin: Use generic irq KconfigThomas Gleixner2011-01-211-11/+3
| | | | | | | No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Mike Frysinger <vapier@gentoo.org>
* genirq: Remove __do_IRQThomas Gleixner2011-01-211-3/+0
| | | | | | | | | | | | | | | | | | | All architectures are finally converted. Remove the cruft. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Richard Henderson <rth@twiddle.net> Cc: Mike Frysinger <vapier@gentoo.org> Cc: David Howells <dhowells@redhat.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Michal Simek <monstr@monstr.eu> Acked-by: David Howells <dhowells@redhat.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Jeff Dike <jdike@addtoit.com>
* kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERTDavid Rientjes2011-01-2128-28/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The meaning of CONFIG_EMBEDDED has long since been obsoleted; the option is used to configure any non-standard kernel with a much larger scope than only small devices. This patch renames the option to CONFIG_EXPERT in init/Kconfig and fixes references to the option throughout the kernel. A new CONFIG_EMBEDDED option is added that automatically selects CONFIG_EXPERT when enabled and can be used in the future to isolate options that should only be considered for embedded systems (RISC architectures, SLOB, etc). Calling the option "EXPERT" more accurately represents its intention: only expert users who understand the impact of the configuration changes they are making should enable it. Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: David Woodhouse <david.woodhouse@intel.com> Signed-off-by: David Rientjes <rientjes@google.com> Cc: Greg KH <gregkh@suse.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jens Axboe <axboe@kernel.dk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Robin Holt <holt@sgi.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>
* Merge branch 'for-next' of ↵Linus Torvalds2011-01-132-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits) Documentation/trace/events.txt: Remove obsolete sched_signal_send. writeback: fix global_dirty_limits comment runtime -> real-time ppc: fix comment typo singal -> signal drivers: fix comment typo diable -> disable. m68k: fix comment typo diable -> disable. wireless: comment typo fix diable -> disable. media: comment typo fix diable -> disable. remove doc for obsolete dynamic-printk kernel-parameter remove extraneous 'is' from Documentation/iostats.txt Fix spelling milisec -> ms in snd_ps3 module parameter description Fix spelling mistakes in comments Revert conflicting V4L changes i7core_edac: fix typos in comments mm/rmap.c: fix comment sound, ca0106: Fix assignment to 'channel'. hrtimer: fix a typo in comment init/Kconfig: fix typo anon_inodes: fix wrong function name in comment fix comment typos concerning "consistent" poll: fix a typo in comment ... Fix up trivial conflicts in: - drivers/net/wireless/iwlwifi/iwl-core.c (moved to iwl-legacy.c) - fs/ext4/ext4.h Also fix missed 'diabled' typo in drivers/net/bnx2x/bnx2x.h while at it.
| * Merge branch 'master' into for-nextJiri Kosina2010-12-221-1/+0
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: MAINTAINERS arch/arm/mach-omap2/pm24xx.c drivers/scsi/bfa/bfa_fcpim.c Needed to update to apply fixes for which the old branch was too outdated.
| * | Don't touch blackfin with printk typo fixesJiri Kosina2010-11-193-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | This is a partial revert of b595076a ("tree-wide: fix comment/printk typos"), as blackfin tree is going to have completely different version of the code. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * | suspend: constify platform_suspend_opsLionel Debroux2010-11-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While at it, fix two checkpatch errors. Several non-const struct instances constified by this patch were added after the introduction of platform_suspend_ops in checkpatch.pl's list of "should be const" structs (79404849e90a41ea2109bd0e2f7c7164b0c4ce73). Patch against mainline. Inspired by hunks of the grsecurity patch, updated for newer kernels. Signed-off-by: Lionel Debroux <lionel_debroux@yahoo.fr> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * | tree-wide: fix comment/printk typosUwe Kleine-König2010-11-014-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "gadget", "through", "command", "maintain", "maintain", "controller", "address", "between", "initiali[zs]e", "instead", "function", "select", "already", "equal", "access", "management", "hierarchy", "registration", "interest", "relative", "memory", "offset", "already", Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | Blackfin: encode cpu-rev into uImage nameMike Frysinger2011-01-102-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | Encoding the cpu family name apparently confuses people when they try to boot an image on a sub-variant, so encode the specific cpu name and the silicon rev instead. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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