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* Blackfin arch: fix a broken define in dma-mappingMike Frysinger2008-11-18
| | | | | | | | | dma_mapping_error is an actual function, so fix broken define with a real inline stub Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: fix bug - Turn on DEBUG_DOUBLEFAULT, booting SMP kernel crashGraf Yang2008-11-18
| | | | | | Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: fix bug - shared lib function in L2 failed be calledJie Zhang2008-10-28
| | | | | | | | Allow user space to access L2 SRAM. Signed-off-by: Jie Zhang <jie.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: fix incorrect limit check for bf54x check_gpioMike Frysinger2008-10-28
| | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: fix bug - Cpufreq assumes clocks in kHz and not Hz.Michael Hennerich2008-10-28
| | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: dont warn when running a kernel on the oldest supported siliconMike Frysinger2008-10-28
| | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: fix bug - kernel build with write back policy fails to be ↵Mike Frysinger2008-10-28
| | | | | | | | | | | | | | | | booted up Make sure IFLUSH is not the last instruction in the hardware loop to avoid infinite core stall. The dcache/icache function that only gets used in writeback mode was putting IFLUSH as the last instruction in the hardware loop ... we know from design that this may often lead to inifite core stalling, so switch the FLUSH/IFLUSH order. Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: fix bug - dmacopy test case fail on all platformMike Frysinger2008-11-18
| | | | | | | | | | The cache code I added flushes 1 line too little if the start address is not aligned to the cache size. Cache align the start address so that when we straddle cache aligns, we get the right count. Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: Fix typo when adding CONFIG_DEBUG_VERBOSERobin Getz2008-10-27
| | | | | | Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: don't copy bss when copying L1Mike Frysinger2008-10-27
| | | | | | | | | when copying L1 regions, go to the start of bss rather than end since we have code to zero it out already Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: fix bug - Fail to boot jffs2 kernel for BF561 with SMP patchGraf Yang2008-10-27
| | | | | | | | only if the cplb block overlapped with kernel area, this cplb need be locked Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: handle case of d_path() returning error in decode_address()Tim Pepper2008-10-27
| | | | | | | | | | d_path() can return an error. Most of its callers do something or other to make up something sane in that case. Do similar for blackfin's decode_address() call to d_path(). Signed-off-by: Tim Pepper <lnxninja@linux.vnet.ibm.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* container freezer: implement freezer cgroup subsystemMatt Helsley2008-10-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements a new freezer subsystem in the control groups framework. It provides a way to stop and resume execution of all tasks in a cgroup by writing in the cgroup filesystem. The freezer subsystem in the container filesystem defines a file named freezer.state. Writing "FROZEN" to the state file will freeze all tasks in the cgroup. Subsequently writing "RUNNING" will unfreeze the tasks in the cgroup. Reading will return the current state. * Examples of usage : # mkdir /containers/freezer # mount -t cgroup -ofreezer freezer /containers # mkdir /containers/0 # echo $some_pid > /containers/0/tasks to get status of the freezer subsystem : # cat /containers/0/freezer.state RUNNING to freeze all tasks in the container : # echo FROZEN > /containers/0/freezer.state # cat /containers/0/freezer.state FREEZING # cat /containers/0/freezer.state FROZEN to unfreeze all tasks in the container : # echo RUNNING > /containers/0/freezer.state # cat /containers/0/freezer.state RUNNING This is the basic mechanism which should do the right thing for user space task in a simple scenario. It's important to note that freezing can be incomplete. In that case we return EBUSY. This means that some tasks in the cgroup are busy doing something that prevents us from completely freezing the cgroup at this time. After EBUSY, the cgroup will remain partially frozen -- reflected by freezer.state reporting "FREEZING" when read. The state will remain "FREEZING" until one of these things happens: 1) Userspace cancels the freezing operation by writing "RUNNING" to the freezer.state file 2) Userspace retries the freezing operation by writing "FROZEN" to the freezer.state file (writing "FREEZING" is not legal and returns EIO) 3) The tasks that blocked the cgroup from entering the "FROZEN" state disappear from the cgroup's set of tasks. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: export thaw_process] Signed-off-by: Cedric Le Goater <clg@fr.ibm.com> Signed-off-by: Matt Helsley <matthltc@us.ibm.com> Acked-by: Serge E. Hallyn <serue@us.ibm.com> Tested-by: Matt Helsley <matthltc@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2008-10-16
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: Blackfin arch: make sure cycles is marked as volatile so gcc doesnt reorder on us Blackfin arch: disable CONFIG_HW_RANDOM and CONFIG_DAB in defconfig files Blackfin arch: update cache flush prototypes with argument names to make them less mysterious Blackfin arch: move bfin_addr_dcachable() and friends into the cacheflush header where it belongs Blackfin arch: use the new bfin_addr_dcachable() function Blackfin arch: fix bug - build kernel failed at head.S when reprogram clock on all platforms Blackfin arch: unify/cleanup cache code Blackfin arch: update AD7879 platform resources in board file Blackfin arch: Zero out bss region in L1/L2 memory. Blackfin arch: add read/write IO accessor functions to Blackfin Blackfin arch: fix bug - some serial header files set RTS to an input when they should all be outputs
| * Blackfin arch: make sure cycles is marked as volatile so gcc doesnt reorder ↵Mike Frysinger2008-10-16
| | | | | | | | | | | | | | | | on us Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: disable CONFIG_HW_RANDOM and CONFIG_DAB in defconfig filesMike Frysinger2008-10-16
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: update cache flush prototypes with argument names to make ↵Mike Frysinger2008-10-16
| | | | | | | | | | | | | | | | them less mysterious Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: move bfin_addr_dcachable() and friends into the cacheflush ↵Mike Frysinger2008-10-16
| | | | | | | | | | | | | | | | header where it belongs Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: use the new bfin_addr_dcachable() functionMike Frysinger2008-10-16
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: fix bug - build kernel failed at head.S when reprogram clock ↵Robin Getz2008-10-16
| | | | | | | | | | | | | | | | on all platforms Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: unify/cleanup cache codeMike Frysinger2008-10-16
| | | | | | | | | | | | | | | | | | - to be correct wrt to end ranges - to be optimal with a one-instruction hardware loop Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: update AD7879 platform resources in board fileMichael Hennerich2008-10-16
| | | | | | | | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Zero out bss region in L1/L2 memory.Graf Yang2008-10-16
| | | | | | | | | | | | Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: add read/write IO accessor functions to BlackfinBryan Wu2008-10-16
| | | | | | | | | | | | | | This is to kill some compiling warning on DM9000 netdev driver. Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: fix bug - some serial header files set RTS to an input when ↵Sonic Zhang2008-10-13
| | | | | | | | | | | | | | | | they should all be outputs Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* | Merge branch 'personality' of git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds2008-10-16
|\ \ | | | | | | | | | | | | * 'personality' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: [PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY
| * | [PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITYMartin Schwidefsky2008-10-16
| |/ | | | | | | | | | | | | | | The SET_PERSONALITY macro is always called with a second argument of 0. Remove the ibcs argument and the various tests to set the PER_SVR4 personality. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* / cpufreq: remove policy->governor setting in drivers initializationDominik Brodowski2008-10-15
|/ | | | | | | | | | | | As policy->governor is already set to CPUFREQ_DEFAULT_GOVERNOR in the (always built-in) cpufreq core, we do not need to set it in the drivers. This fixes the sparc64 allmodconfig build failure. Also, remove a totally useles setting of ->policy in cpufreq-pxa3xx.c. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2008-10-13
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (60 commits) Blackfin arch: make sure we include the fix for SPORT hysteresis when reprogramming clocks Blackfin arch: Fix bogus str_ident check in gpio code Blackfin arch: AD7879 Touchscreen driver Blackfin arch: introducing bfin_addr_dcachable Blackfin arch: fix a typo in comments Blackfin arch: Remove useless head file Blackfin arch: make sure L2 start and length are always defined (fixes building on BF542) Blackfin arch: use the Blackfin on-chip ROM to do software reset when possible Blackfin arch: update anomaly headers to match the latest sheet Blackfin arch: bfin_reset() is an internal reboot function ... everyone should go through machine_restart() Blackfin arch: print out error/warning if you are running on the incorrect CPU type Blackfin arch: remove non-bf54x ifdef logic since this file is only compiled on bf54x parts Blackfin arch: update board defconfigs Blackfin arch: Add optional verbose debug Blackfin arch: emulate a TTY over the EMUDAT/JTAG interface Blackfin arch: have is_user_addr_valid() check for overflows (like when address is -1) Blackfin arch: ptrace - fix off-by-one check on end of memory regions Blackfin arch: Enable framebuffer support for the BF526-EZkit TFT LCD display Blackfin arch: flash memory map and dm9000 resources updating Blackfin arch: early prink code still use uart core console functions to parse and set configure option string ...
| * Blackfin arch: make sure we include the fix for SPORT hysteresis when ↵Robin Getz2008-10-12
| | | | | | | | | | | | | | | | | | | | | | reprogramming clocks As pointed out by Appalayagari Sreedhar, make sure we include the fix for SPORT hysteresis when reprogramming clocks. Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Fix bogus str_ident check in gpio codeMichael Hennerich2008-10-12
| | | | | | | | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: AD7879 Touchscreen driverMichael Hennerich2008-10-12
| | | | | | | | | | | | | | | | Add AD7879 Touchscreen driver to the device structures Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: introducing bfin_addr_dcachableVitja Makarov2008-10-13
| | | | | | | | | | | | | | | | This patch introduces bfin_addr_dcachable() predicate, that simply tests is address in cachable region or not. Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: fix a typo in commentsBryan Wu2008-10-10
| | | | | | | | | | Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Remove useless head fileGraf Yang2008-10-10
| | | | | | | | | | | | Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: make sure L2 start and length are always defined (fixes ↵Mike Frysinger2008-10-10
| | | | | | | | | | | | | | | | building on BF542) Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: use the Blackfin on-chip ROM to do software reset when possibleMike Frysinger2008-10-12
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: update anomaly headers to match the latest sheetMike Frysinger2008-10-10
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: bfin_reset() is an internal reboot function ... everyone ↵Mike Frysinger2008-10-10
| | | | | | | | | | | | | | | | should go through machine_restart() Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: print out error/warning if you are running on the incorrect ↵Robin Getz2008-10-10
| | | | | | | | | | | | | | | | CPU type Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: remove non-bf54x ifdef logic since this file is only compiled ↵Mike Frysinger2008-10-10
| | | | | | | | | | | | | | | | on bf54x parts Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: update board defconfigsMike Frysinger2008-10-10
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Add optional verbose debugRobin Getz2008-10-10
| | | | | | | | | | | | | | | | | | 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>
| * Blackfin arch: emulate a TTY over the EMUDAT/JTAG interfaceMike Frysinger2008-10-10
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: have is_user_addr_valid() check for overflows (like when ↵Mike Frysinger2008-10-10
| | | | | | | | | | | | | | | | address is -1) Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: ptrace - fix off-by-one check on end of memory regionsMike Frysinger2008-10-10
| | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Enable framebuffer support for the BF526-EZkit TFT LCD displayMichael Hennerich2008-10-13
| | | | | | | | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: flash memory map and dm9000 resources updatingJavier Herrero2008-10-09
| | | | | | | | | | | | Signed-off-by: Javier Herrero <jherrero@hvsistemas.es> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: early prink code still use uart core console functions to ↵Sonic Zhang2008-10-09
| | | | | | | | | | | | | | | | parse and set configure option string Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * Blackfin arch: Move all the silicon rev handling to one placeMike Frysinger2008-10-09
| | | | | | | | | | | | | | | | | | Move all the silicon rev handling to one place (Kconfig) and make sure we warn if you are running on silicon that has not been tested on Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
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