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2011-05-25Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (37 commits) Blackfin: use new common PERCPU_INPUT define MAINTAINERS: Fix Analog Devices mailinglist address Blackfin: boards: update ASoC resources after machine driver overhaul Blackfin: work around anomaly 05000480 Blackfin: fix addr type with bfin_write_{or,and} helpers Blackfin: convert /proc/sram to seq_file Blackfin: switch /proc/gpio to seq_file Blackfin: fix indentation with bfin_read() helper Blackfin: convert old cpumask API to new one Blackfin: don't touch task->cpus_allowed directly Blackfin: don't touch cpu_possible_map and cpu_present_map directly Blackfin: bf548-ezkit/bf561-ezkit: update nor flash layout Blackfin: initial perf_event support Blackfin: update anomaly lists to latest public info Blackfin: use on-chip reset func with newer parts Blackfin: bf533-stamp/bf537-stamp: drop ad1980 from defconfigs Blackfin: optimize MMR reads during startup a bit Blackfin: bf537: demux port H mask A and emac rx ints Blackfin: bf537: fix excessive gpio int demuxing Blackfin: bf54x: drop unused pm gpio handling ...
2011-05-25lib: consolidate DEBUG_STACK_USAGE optionStephen Boyd1-9/+0
Most arches define CONFIG_DEBUG_STACK_USAGE exactly the same way. Move it to lib/Kconfig.debug so each arch doesn't have to define it. This obviously makes the option generic, but that's fine because the config is already used in generic code. It's not obvious to me that sysrq-P actually does anything caution by keeping the most inclusive wording. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Chris Metcalf <cmetcalf@tilera.com> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Richard Weinberger <richard@nod.at> Acked-by: Mike Frysinger <vapier@gentoo.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Hirokazu Takata <takata@linux-m32r.org> Acked-by: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-25Blackfin: first pass at debug mmr supportMike Frysinger1-1/+1
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-03-31Fix common misspellingsLucas De Marchi1-1/+1
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2010-10-25Blackfin: drop unused irq_panic()/DEBUG_ICACHE_CHECKMike Frysinger1-11/+0
This code was useful during early port development when our icache code wasn't solid, but that ship has sailed long ago, and no code calls this function anymore (irq_panic). So punt it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22Blackfin: allow NMI watchdog to be used w/RETN as a scratch regGraf Yang1-1/+1
NMIs are not safe to return from because many anomaly workarounds are implemented by disabling interrupts. The NMI obviously violates this assumption. Since the NMI watchdog never returns, we don't have to worry about it clobbering RETN when it is being used as a scratch register with the exception stack. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-05-22Blackfin: add support for the DBGA (debug assert) pseudo insnRobin Getz1-0/+9
A few pseudo debug insns exist to make testing of simulators easier. Since these don't actually exist in the hardware, we have to have the exception handler take care of emulating these. This allows sim test cases to be executed unmodified under Linux and thus simplify debugging greatly. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09Blackfin: move KGDB selection to the way other arches do itMike Frysinger1-3/+0
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09Blackfin: implement nmi_watchdog for SMP on BF561Graf Yang1-0/+9
Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-16Blackfin: add some isram-driver self testsMike Frysinger1-0/+6
Make it easy to figure out if code changes here are correct. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12Blackfin: make deferred hardware errors more exactRobin Getz1-0/+13
Hardware errors on the Blackfin architecture are queued by nature of the hardware design. Things that could generate a hardware level queue up at the system interface and might not process until much later, at which point the system would send a notification back to the core. As such, it is possible for user space code to do something that would trigger a hardware error, but have it delay long enough for the process context to switch. So when the hardware error does signal, we mistakenly evaluate it as a different process or as kernel context and panic (erp!). This makes it pretty difficult to find the offending context. But wait, there is good news somewhere. By forcing a SSYNC in the interrupt entry, we force all pending queues at the system level to be processed and all hardware errors to be signaled. Then we check the current interrupt state to see if the hardware error is now signaled. If so, we re-queue the current interrupt and return thus allowing the higher priority hardware error interrupt to process properly. Since we haven't done any other context processing yet, the right context will be selected and killed. There is still the possibility that the exact offending instruction will be unknown, but at least we'll have a much better idea of where to look. The downside of course is that this causes system-wide syncs at every interrupt point which results in significant performance degradation. Since this situation should not occur in any properly configured system (as hardware errors are triggered by things like bad pointers), make it a debug configuration option and disable it by default. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-03-02Blackfin arch: use common KGDB_TESTS rather than our own KGDB_TESTCASEMike Frysinger1-6/+0
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07Blackfin arch: change HWTRACE Kconfig and set it on defaultMike Frysinger1-3/+3
change the hwtrace description to be less confusing and default it to on (since there shouldnt be any crashes in the miss handler code itself) Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-01-07Blackfin arch: merge kgdb test code using common CONFIG_KGDB_TESTSMike Frysinger1-1/+7
[Grace Pan <grace.pan@analog.com>: Add case for kgdb test in l1 and l2] 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>
2009-01-07Blackfin arch: Add basic irq stack checking for BlackfinRobin Getz1-0/+16
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-10Blackfin arch: Add optional verbose debugRobin Getz1-0/+13
Add optional verbose debug - which when turned off, quiets down userspace errors. Saves ~8k of code/data for production systems Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-09Blackfin arch: early prink code still use uart core console functions to ↵Sonic Zhang1-0/+1
parse and set configure option string Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-13Blackfin arch: add supporting for kgdbSonic Zhang1-0/+3
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-10-08Blackfin arch: add supporting for double fault debug handlingRobin Getz1-0/+38
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-07-19Blackfin arch: Do not need this dualcore test module in kernel.Yi Li1-7/+0
Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-02[Blackfin] arch: add slightly better help text for CPLB_INFOMike Frysinger1-1/+1
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-11-21Blackfin arch: split debug stuff off into Kconfig.debug like everyone elseMike Frysinger1-0/+178
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
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