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2010-03-09Blackfin: implement nmi_watchdog for SMP on BF561Graf Yang3-0/+17
Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09Blackfin: increase NR_IRQS beyond NR on-chip IRQsMichael Hennerich1-0/+3
This makes room for off-chip IRQ controllers. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09Blackfin: add support for irqflags tracingYi Li1-0/+12
Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09Blackfin: initial XIP supportBarry Song2-0/+13
Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09Blackfin: SMP: add PM/CPU hotplug supportGraf Yang1-0/+7
Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09Blackfin: SMP: make core timers per-cpu clock events for HRTYi Li1-1/+5
SMP systems require per-cpu local clock event devices in order to enable HRT support. One a BF561, we can use local core timer for this purpose. Originally, there was one global core-timer clock event device set up for core A. To accomplish this feat, we need to split the gptimer0/core timer logic so that each is a standalone clock event. There is no requirement that we only have one clock event source anyways. Once we have this, we just define per-cpu clock event devices for each local core timer. Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09Blackfin: unify MMR helpersMike Frysinger1-44/+12
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09Blackfin: add optimized version of Hamming Weight functionsMichael Hennerich1-19/+55
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09Blackfin: dma-mapping: fix thinko in constant optimizationSonic Zhang1-6/+9
Make sure the non-constant version of the dma_sync functions actually complete instead of recursively calling itself forever. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09Blackfin: merge common CAN defines into one headersMike Frysinger1-0/+725
Rather than copy and paste the MMR defines and register layout, consolidate everything in one place. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09Blackfin: extend bfin-lq035q1-fb resources to include PPI modeMichael Hennerich1-0/+12
This lets us support the new BF527-EZKIT V2.1 via platform resources tweaks only. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09Blackfin: fix MPU page permission masks overflow when dealing with async memoryBarry Song1-3/+11
Attempting to use the MPU while doing XIP out of parallel flash hooked up to the async memory bus would often result in random crashes as the MPU slowly corrupted memory. The fallout here is that the async banks gain MPU protection from user space too. So any accesses have to go through the mmap() interface rather than just using hardcoded pointers. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-03-09Blackfin: bfin_sport: unify & standardize SPORT masksMike Frysinger2-90/+125
Rather than have every SPORT driver copy & paste things, declare the C structure and MMR bitmasks in one place for everyone to use. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-02-05Fix spelling of 'platform' in comments and docStefan Weil1-2/+2
Replace platfrom -> platform. This is a frequent spelling bug. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-01-06FDPIC: Respect PT_GNU_STACK exec protection markings when creating NOMMU stackMike Frysinger1-0/+5
The current code will load the stack size and protection markings, but then only use the markings in the MMU code path. The NOMMU code path always passes PROT_EXEC to the mmap() call. While this doesn't matter to most people whilst the code is running, it will cause a pointless icache flush when starting every FDPIC application. Typically this icache flush will be of a region on the order of 128KB in size, or may be the entire icache, depending on the facilities available on the CPU. In the case where the arch default behaviour seems to be desired (EXSTACK_DEFAULT), we probe VM_STACK_FLAGS for VM_EXEC to determine whether we should be setting PROT_EXEC or not. For arches that support an MPU (Memory Protection Unit - an MMU without the virtual mapping capability), setting PROT_EXEC or not will make an important difference. It should be noted that this change also affects the executability of the brk region, since ELF-FDPIC has that share with the stack. However, this is probably irrelevant as NOMMU programs aren't likely to use the brk region, preferring instead allocation via mmap(). Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-17Merge branch 'for-33' of git://repo.or.cz/linux-kbuildLinus Torvalds1-0/+1
* 'for-33' of git://repo.or.cz/linux-kbuild: (29 commits) net: fix for utsrelease.h moving to generated gen_init_cpio: fixed fwrite warning kbuild: fix make clean after mismerge kbuild: generate modules.builtin genksyms: properly consider EXPORT_UNUSED_SYMBOL{,_GPL}() score: add asm/asm-offsets.h wrapper unifdef: update to upstream revision 1.190 kbuild: specify absolute paths for cscope kbuild: create include/generated in silentoldconfig scripts/package: deb-pkg: use fakeroot if available scripts/package: add KBUILD_PKG_ROOTCMD variable scripts/package: tar-pkg: use tar --owner=root Kbuild: clean up marker net: add net_tstamp.h to headers_install kbuild: move utsrelease.h to include/generated kbuild: move autoconf.h to include/generated drop explicit include of autoconf.h kbuild: move compile.h to include/generated kbuild: drop include/asm kbuild: do not check for include/asm-$ARCH ... Fixed non-conflicting clean merge of modpost.c as per comments from Stephen Rothwell (modpost.c had grown an include of linux/autoconf.h that needed to be changed to generated/autoconf.h)
2009-12-16Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfinLinus Torvalds24-521/+410
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (88 commits) Blackfin: Convert BUG() to use unreachable() Blackfin: define __NR_recvmmsg Blackfin: drop duplicate sched_clock Blackfin: NOMPU: skip DMA ICPLB hole when it is redundant Blackfin: MPU: add missing __init markings Blackfin: add support for TIF_NOTIFY_RESUME Blackfin: kgdb_test: clean up code a bit Blackfin: convert kgdbtest to proc_fops Blackfin: convert cyc2ns() to clocksource_cyc2ns() Blackfin: ip0x: pull in asm/portmux.h for P_xxx defines Blackfin: drop unused ax88180 resources Blackfin: bf537-stamp: add ADF702x network driver resources Blackfin: bf537-stamp: add CAN resources Blackfin: bf537-stamp: add AD5258 i2c address Blackfin: bf537-stamp: add adau1761 i2c address Blackfin: bf537-stamp: add adau1371 i2c address Blackfin: bf537-stamp: add ADP8870 resources Blackfin: bf537-stamp: kill AD714x board-specific Kconfigs Blackfin: bf537-stamp: update ADP5520 resources Blackfin: bf537-stamp: add ADXL346 orientation sensing support ...
2009-12-16Merge branch 'module' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linusLinus Torvalds1-2/+0
* 'module' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: modpost: fix segfault with short symbol names module: handle ppc64 relocating kcrctabs when CONFIG_RELOCATABLE=y Kbuild: clear marker out of modpost module: make MODULE_SYMBOL_PREFIX into a CONFIG option ARM: unexport symbols used to implement floating point emulation ARM: use unified discard definition in linker script x86: don't export inline function sparc64: don't export static inline pci_ functions
2009-12-16elf: kill USE_ELF_CORE_DUMPChristoph Hellwig1-1/+0
Currently all architectures but microblaze unconditionally define USE_ELF_CORE_DUMP. The microblaze omission seems like an error to me, so let's kill this ifdef and make sure we are the same everywhere. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Cc: <linux-arch@vger.kernel.org> Cc: Michal Simek <michal.simek@petalogix.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16fbdev: bfin-lq035q1-fb: new Blackfin Landscape LCD EZ-Extender driverMichael Hennerich1-0/+28
Framebuffer driver for the Landscape LCD EZ-Extender (ADZS-BFLLCD-EZEXT) http://docs.blackfin.uclinux.org/doku.php?id=hw:cards:landscape_lcd_ez-extender Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15Blackfin: Convert BUG() to use unreachable()David Daney1-1/+1
Use the new unreachable() macro instead of for(;;); Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin: define __NR_recvmmsgMike Frysinger1-1/+2
Commit a2e2725541f added recvmmsg to a bunch of arches (including the Blackfin entry.S), but didn't actually add the new __NR_ define for it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15module: make MODULE_SYMBOL_PREFIX into a CONFIG optionAlan Jenkins1-2/+0
The next commit will require the use of MODULE_SYMBOL_PREFIX in .tmp_exports-asm.S. Currently it is mixed in with C structure definitions in "asm/module.h". Move the definition of this arch option into Kconfig, so it can be easily accessed by any code. This also lets modpost.c use the same definition. Previously modpost relied on a hardcoded list of architectures in mk_elfconfig.c. A build test for blackfin, one of the two MODULE_SYMBOL_PREFIX archs, showed the generated code was unchanged. vmlinux was identical save for build ids, and an apparently randomized suffix on a single "__key" symbol in the kallsyms data). Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Acked-by: Mike Frysinger <vapier@gentoo.org> (blackfin) CC: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-12-15Blackfin: add support for TIF_NOTIFY_RESUMEBarry Song1-0/+2
Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin: convert to asm-generic pci headersBarry Song1-128/+2
Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin: io.h: fix random busted whitespaceMike Frysinger1-42/+49
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin: dma-mapping.h: flesh out missing DMA mapping functionsBarry Song2-27/+99
Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin: support smaller uncached DMA chunks for memory constrained systemsBarry Song1-0/+6
When working with 8 meg systems, forcing a 1 meg DMA chunk heavily cuts into the available resources. So support smaller chunks to better cover needs for these systems. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin: kgdb: punt dead codeSonic Zhang1-3/+0
None of these vars/funcs were being used. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin: punt dead/unused flash mem_init settingsMike Frysinger1-153/+0
I don't think these defines were ever used. At any rate, we have common bit defines for all parts as well as a Kconfig option to declare the EBIU async timings, and no one has really complained about this so far. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin: gptimers: use unsigned timer/group idsMike Frysinger1-16/+16
Since we always use these ids as unsigned values, and we have some assert code to make sure they don't exceed a limit, avoid signed issues. Reported-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin: comment the FDPIC PTRACE definesMike Frysinger1-3/+3
This matches similar documentation for the FRV FDPIC code. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin/ipipe: update version stampPhilippe Gerum1-2/+2
Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Li Yi <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin/ipipe: introduce support for CONFIG_MPUPhilippe Gerum1-2/+31
Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Li Yi <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin/ipipe: fix forward ref to barrier()Philippe Gerum1-6/+7
Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Li Yi <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin/ipipe: prepare status bitops for SMP supportPhilippe Gerum2-25/+7
Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Li Yi <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin: unify DMA masksMike Frysinger1-20/+49
Every Blackfin variant has the same DMA bit masks, so avoid duplicating them over and over in each mach header. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin: unify duplicated power masksMike Frysinger1-3/+104
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin: pull in asm/dpmc.h for power definesMike Frysinger1-0/+2
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin: convert DMA mutex to an atomic and drop redundant codeMike Frysinger1-14/+3
The DMA channel status field was encoding redundant info wrt the DMA MMR config register, and it was doing an incomplete job of checking all DMA channels (some drivers write directly to the config register). So drop the tristate field in favor of a binary atomic field. This simplifies the code in general, removes the implicit need for sleeping, and forces the suspend code to handle all channels properly. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin: push down asm/ includes and out of bfin-global.hMike Frysinger3-6/+3
Avoid including unnecessary headers all the time as well as circular includes with core requirements. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin: bf538: add support for extended GPIO banksMichael Hennerich1-0/+5
The GPIOs on ports C/D/E on the BF538/BF539 do not behave the same way as the other ports on the part and the same way as all other Blackfin parts. The MMRs are programmed slightly different and they cannot be used to generate interrupts or wakeup a sleeping system. Since these guys don't fit into the existing code, create a simple gpiolib driver for them. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin: add C define of trace_buffer_init()Graf Yang1-0/+2
Have the C API trace funcs match the assembly API trace funcs. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin: calculate on-chip lengths at link time rather than run timeMike Frysinger1-4/+12
Since the link sizes never change at runtime, push the calculation out to the linker script to save some useless calculation costs. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-15Blackfin: convert to generic checksum codeMike Frysinger1-66/+4
The Blackfin port only implemented an optimized version of the csum_tcpudp_nofold function, so convert everything else to the new generic code. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-12-14locking: Convert raw_rwlock functions to arch_rwlockThomas Gleixner1-20/+20
Name space cleanup for rwlock functions. No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: linux-arch@vger.kernel.org
2009-12-14locking: Convert raw_rwlock to arch_rwlockThomas Gleixner2-10/+10
Not strictly necessary for -rt as -rt does not have non sleeping rwlocks, but it's odd to not have a consistent naming convention. No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: linux-arch@vger.kernel.org
2009-12-14locking: Convert __raw_spin* functions to arch_spin*Thomas Gleixner1-10/+10
Name space cleanup. No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: linux-arch@vger.kernel.org
2009-12-14locking: Rename __RAW_SPIN_LOCK_UNLOCKED to __ARCH_SPIN_LOCK_UNLOCKEDThomas Gleixner1-1/+1
Further name space cleanup. No functional change Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: linux-arch@vger.kernel.org
2009-12-14locking: Convert raw_spinlock to arch_spinlockThomas Gleixner2-6/+6
The raw_spin* namespace was taken by lockdep for the architecture specific implementations. raw_spin_* would be the ideal name space for the spinlocks which are not converted to sleeping locks in preempt-rt. Linus suggested to convert the raw_ to arch_ locks and cleanup the name space instead of using an artifical name like core_spin, atomic_spin or whatever No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: linux-arch@vger.kernel.org
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