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* Blackfin: convert to asm-generic/mutex-dec.h for all systemsMike Frysinger2011-07-231-76/+1
| | | | | | | The Blackfin mutex.h is merely a copy of an older asm-generic/mutex-dec.h, so punt it and just use the common one directly. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: optimize double fault boot checkingMike Frysinger2011-07-231-0/+10
| | | | | | | | This moves the double fault data used at boot time into a single struct which can then easily be addressed with indexed loads rather than having to explicitly load multiple addresses. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: convert to kbuild asm-generic supportMike Frysinger2011-07-2343-47/+43
| | | | | | No need for one line header stubs. Just declare it in Kbuild. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: gptimers: add structure for hardware register layoutMike Frysinger2011-05-281-0/+18
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: wire up new sendmmsg syscallMike Frysinger2011-05-281-1/+2
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: bfin_serial.h: turn default port wrappers into stubsMike Frysinger2011-05-281-3/+3
| | | | | | | Any consumer that needs to access the MMRs has to provide these helpers, so make the default into useless stubs. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Merge branch 'setns'Linus Torvalds2011-05-281-1/+2
|\ | | | | | | | | | | | | | | * setns: ns: Wire up the setns system call Done as a merge to make it easier to fix up conflicts in arm due to addition of sendmmsg system call
| * ns: Wire up the setns system callEric W. Biederman2011-05-281-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 32bit and 64bit on x86 are tested and working. The rest I have looked at closely and I can't find any problems. setns is an easy system call to wire up. It just takes two ints so I don't expect any weird architecture porting problems. While doing this I have noticed that we have some architectures that are very slow to get new system calls. cris seems to be the slowest where the last system calls wired up were preadv and pwritev. avr32 is weird in that recvmmsg was wired up but never declared in unistd.h. frv is behind with perf_event_open being the last syscall wired up. On h8300 the last system call wired up was epoll_wait. On m32r the last system call wired up was fallocate. mn10300 has recvmmsg as the last system call wired up. The rest seem to at least have syncfs wired up which was new in the 2.6.39. v2: Most of the architecture support added by Daniel Lezcano <dlezcano@fr.ibm.com> v3: ported to v2.6.36-rc4 by: Eric W. Biederman <ebiederm@xmission.com> v4: Moved wiring up of the system call to another patch v5: ported to v2.6.39-rc6 v6: rebased onto parisc-next and net-next to avoid syscall conflicts. v7: ported to Linus's latest post 2.6.39 tree. >  arch/blackfin/include/asm/unistd.h     |    3 ++- >  arch/blackfin/mach-common/entry.S      |    1 + Acked-by: Mike Frysinger <vapier@gentoo.org> Oh - ia64 wiring looks good. Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | kgdbts: unify/generalize gdb breakpoint adjustmentMike Frysinger2011-05-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Blackfin arch, like the x86 arch, needs to adjust the PC manually after a breakpoint is hit as normally this is handled by the remote gdb. However, rather than starting another arch ifdef mess, create a common GDB_ADJUSTS_BREAK_OFFSET define for any arch to opt-in via their kgdb.h. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Dongdong Deng <dongdong.deng@windriver.com> Cc: Sergei Shtylyov <sshtylyov@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Blackfin: convert to asm-generic ptrace.hMike Frysinger2011-05-271-3/+2
|/ | | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Sergei Shtylyov <sshtylyov@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Blackfin: boards: update ASoC resources after machine driver overhaulScott Jiang2011-05-251-0/+4
| | | | | | | | | Now that the Blackfin machine drivers have been updated to the multicomponent support, update the resources to match. The pin settings are now a board issue and removed from the driver. Signed-off-by: Scott Jiang <scott.jiang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: fix addr type with bfin_write_{or,and} helpersMike Frysinger2011-05-251-2/+2
| | | | | | | | | Since the bfin_write() func needs proper type information in order to expand into the right bfin_writeX() variant, preserve the addr's type when setting up the local __addr. Otherwise the helpers will detect the variant based upon sizeof(void) which is almost never right. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: fix indentation with bfin_read() helperMike Frysinger2011-05-251-4/+4
| | | | | | Use tabs instead of spaces to indent. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: initial perf_event supportMike Frysinger2011-05-252-0/+45
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: bf537: demux port H mask A and emac rx intsMike Frysinger2011-05-251-0/+1
| | | | | | | | | | | The BF537 SIC combines the gpio port H mask A interrupts with the emac rx interrupt, so we need to demux this in software. It also combines the gpio port H mask B and the emac tx interrupts, and the watchdog and port F mask B interrupts, but since we don't support mask B yet, just add the defines for now. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: move bf537-specific irq code out of common codeMike Frysinger2011-05-251-0/+14
| | | | | | | | The SIC interrupt line muxing that the bf537 does is specific to this CPU (thankfully), so rip it out of the common code and move it to a bf537-specific file. This tidies up the common code significantly. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: move internal irq prototypes out of global namespaceMike Frysinger2011-05-252-10/+10
| | | | | | | | These are only used in a few internal Blackfin places, so move the irq prototypes out of the global header and into the internal irq one. No functional changes other than shuffling locales. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: delete duplicated user single step prototypesMike Frysinger2011-05-251-2/+0
| | | | | | These are in linux/ptrace.h, so no need for us to duplicate them. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: kgdb: cache flushing is not safe in SMP modeSonic Zhang2011-05-251-1/+5
| | | | | | | | Make sure we mark cache flushing as unsafe to kgdb in SMP mode so that kgdb doesn't flush things incorrectly on us. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: SMP: drop unused blackfin_cpudata.idle pointerMike Frysinger2011-05-251-3/+0
| | | | | | | Not sure when we stopped using this field, but nothing in the tree uses this now, so punt it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: unify core IRQ definitionsMike Frysinger2011-05-251-0/+57
| | | | | | | Start a new common IRQ header and move all of the CEC pieces there. This lets the individual part headers worry just about its SIC defines. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: don't attempt to flush on-chip L1 SRAM regionsSonic Zhang2011-05-251-5/+18
| | | | | | | | | Since the on-chip L1 regions are not cacheable, there is no point in trying to flush/invalidate them. Plus, older Blackfin parts like to trigger an exception (like BF533-0.3). Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: SMP: make all barriers handle cache issuesGraf Yang2011-04-141-18/+18
| | | | | | | | | | | | | | | | | | | | | | | | When suspending/resuming, the common task freezing code will run in parallel and freeze processes on each core. This is because the code uses the non-smp version of memory barriers (as well it should). The Blackfin smp barrier logic at the moment contains the cache sync logic, but the non-smp barriers do not. This is incorrect as Rafel summarized: > ... > The existing memory barriers are SMP barriers too, but they are more > than _just_ SMP barriers. At least that's how it is _supposed_ to be > (eg. rmb() is supposed to be stronger than smp_rmb()). > ... > However, looking at the blackfin's definitions of SMP barriers I see > that it uses extra stuff that should _also_ be used in the definitions > of the mandatory barriers. > ... URL: http://lkml.org/lkml/2011/4/13/11 LKML-Reference: <BANLkTi=F-C-vwX4PGGfbkdTBw3OWL-twfg@mail.gmail.com> Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Fix common misspellingsLucas De Marchi2011-03-311-1/+1
| | | | | | Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
* Blackfin: bitops: fix include order after little endian inclusionMike Frysinger2011-03-251-1/+3
| | | | | | | The le.h header requires things like test_bit to be declared, so we need to move its inclusion to after the point where that happens. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2011-03-242-1/+4
|\ | | | | | | | | | | | | | | | | | | 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: Blackfin: bf54x: re-enable anomaly 05000353 for all revs Blackfin: enable atomic64_t support Blackfin: wire up new syncfs syscall Blackfin: SMP: flush CoreB cache when shutting down
| * Blackfin: enable atomic64_t supportMike Frysinger2011-03-231-0/+2
| | | | | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * Blackfin: wire up new syncfs syscallMike Frysinger2011-03-231-1/+2
| | | | | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | bitops: remove minix bitops from asm/bitops.hAkinobu Mita2011-03-241-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | minix bit operations are only used by minix filesystem and useless by other modules. Because byte order of inode and block bitmaps is different on each architecture like below: m68k: big-endian 16bit indexed bitmaps h8300, microblaze, s390, sparc, m68knommu: big-endian 32 or 64bit indexed bitmaps m32r, mips, sh, xtensa: big-endian 32 or 64bit indexed bitmaps for big-endian mode little-endian bitmaps for little-endian mode Others: little-endian bitmaps In order to move minix bit operations from asm/bitops.h to architecture independent code in minix filesystem, this provides two config options. CONFIG_MINIX_FS_BIG_ENDIAN_16BIT_INDEXED is only selected by m68k. CONFIG_MINIX_FS_NATIVE_ENDIAN is selected by the architectures which use native byte order bitmaps (h8300, microblaze, s390, sparc, m68knommu, m32r, mips, sh, xtensa). The architectures which always use little-endian bitmaps do not select these options. Finally, we can remove minix bit operations from asm/bitops.h for all architectures. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Greg Ungerer <gerg@uclinux.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Andreas Schwab <schwab@linux-m68k.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Michal Simek <monstr@monstr.eu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Hirokazu Takata <takata@linux-m32r.org> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Paul Mundt <lethal@linux-sh.org> Cc: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | bitops: remove ext2 non-atomic bitops from asm/bitops.hAkinobu Mita2011-03-241-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | As the result of conversions, there are no users of ext2 non-atomic bit operations except for ext2 filesystem itself. Now we can put them into architecture independent code in ext2 filesystem, and remove from asm/bitops.h for all architectures. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | bitops: introduce little-endian bitops for most architecturesAkinobu Mita2011-03-241-0/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce little-endian bit operations to the big-endian architectures which do not have native little-endian bit operations and the little-endian architectures. (alpha, avr32, blackfin, cris, frv, h8300, ia64, m32r, mips, mn10300, parisc, sh, sparc, tile, x86, xtensa) These architectures can just include generic implementation (asm-generic/bitops/le.h). Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> 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: Ralf Baechle <ralf@linux-mips.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Matthew Wilcox <willy@debian.org> Cc: Grant Grundler <grundler@parisc-linux.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Zankel <chris@zankel.net> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Acked-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.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>
* Blackfin: wire up new syscallsMike Frysinger2011-03-181-1/+4
| | | | | | 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: upgrade to I-pipe mainlinePhilippe Gerum2011-03-182-65/+41
| | | | | | | | | | | | 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: SMP: work around anomaly 05000491Sonic Zhang2011-03-181-1/+6
| | | | | | | | | | | | | | | | 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 Yang2011-03-182-1/+4
| | | | | | | 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: add bfin_write_{or,and} helpersMike Frysinger2011-03-181-2/+14
| | | | 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: dpmc.h: pull in new pll.hMike Frysinger2011-01-101-0/+2
| | | | | | | Any consumer of dpmc.h expects to use VR_CTL, so also pull in the new mach/pll.h header for those functions. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: unify pll.h headersMike Frysinger2011-01-101-0/+86
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: SMP: relocate blackfin_core_id() definitionGraf Yang2011-01-102-4/+3
| | | | | | | | | Since we're breaking apart some inter-header dependencies to avoid more circular loops, move the blackfin_core_id() definition to the func that it is based upon. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: SMP: fix build breakage in cache.hMike Frysinger2011-01-101-0/+2
| | | | | | The SMP code needs "asmlinkage" which linkage.h provides. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: SMP: add missing arch_{read,write}_lock_flags helpersGraf Yang2011-01-101-0/+4
| | | | | | | Common code expects these to be defined for SMP ports, so add them. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: SMP: fix asm/bitops.h errorsMike Frysinger2011-01-101-0/+2
| | | | | | | | The common asm-generic non-atomic bitops.h defines test_bit() for us, but we need to use our own version. So redirect the definition of this func to avoid having to inline the rest of the asm-generic file. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: SMP: rename the arch_xxx lock funcs to __raw_xxxGraf Yang2011-01-102-12/+15
| | | | | | | | | The external functions are named __raw_xxx, not arch_xxx, so rename the prototypes to match reality. This fixes some simple build errors in the bfin_ksyms.c code which exports these helpers to modules. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* serial: bfin_5xx: move resources into board filesSonic Zhang2011-01-101-0/+12
| | | | | | | | | | | | | | | | | | Rather than maintain Kconfig entries where people have to enter raw numbers and hardcode lists of addresses/pins in the driver itself, push it all to platform resources. This lets us simplify the driver, the Kconfig, and gives board porters greater flexibility. In the process, we need to also start supporting the early platform interface. Not a big deal, but it causes the patch to be bigger than a simple resource relocation. All the Blackfin boards already have their resources updated and in place for this change. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: push gpio (port) defines into common headersMike Frysinger2011-01-1010-0/+250
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: dma: constify MMR pointer arrayMike Frysinger2011-01-101-1/+1
| | | | | | The array of pointers is never written, so constify it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: bfin_dma.h: start a header for DMA MMR layoutMike Frysinger2011-01-102-34/+92
| | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: switch to asm-generic/io.hMike Frysinger2011-01-101-201/+37
| | | | | Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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