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| | * | Blackfin: initial XIP supportBarry Song2010-03-09
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: fix initial stack pointer setupBarry Song2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During very early init, the stack pointer is given a slightly incorrect value (&init_thread_union). The value is later adjusted to the right one during early init (&init_thread_union + THREAD_SIZE), but it is used a few times in between. While the few functions used don't actually put things onto the stack (due to optimization), it's best if we simply use the right value from the start. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: fix the section name of init_thread_unionBarry Song2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the common attribute rather than setting the section name directly. The common linker script defines expect the newer naming. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: replace harcoded define with proper THREAD_SIZE macroBarry Song2010-03-09
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: fix relocation errors with large initramfs imagesJie Zhang2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since we are now discarding .exit.text at runtime instead of link time, we need to place all .text sections ahead of the .data sections. Otherwise, a really large attached initramfs may cause link errors as it pushes the PC relative relocations behind the limits of the Blackfin ISA (~16meg). The instructions in the .exit.text are unable to call back into the .text sections leading to a link failure. Signed-off-by: Jie Zhang <jie.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: try to simplify interrupt ifdef uglinessYi Li2010-03-09
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: simplify SMP handling in SRAM codeYi Li2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no need to use {get,put}_cpu() when we already have a spinlock to protect against multiple processors running simultaneously. Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: SMP: add PM/CPU hotplug supportGraf Yang2010-03-09
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: SMP: make core timers per-cpu clock events for HRTYi Li2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | * | Blackfin: drop cpu_callin_map on SMP systemsGraf Yang2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Common API already provides functions for managing online CPUs. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: SMP: add support for IRQ affinitySonic Zhang2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the Blackfin IRQ controller supports this, drivers get the normal functionality of controlling which CPU to bind IRQs to. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: unify MMR helpersMike Frysinger2010-03-09
| | | | | | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: isram: add unlikely to sanity checksMike Frysinger2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't want the compiler assuming the rare sanity checks are the norm and optimize for those paths. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: update defconfigsSonic Zhang2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: add optimized version of Hamming Weight functionsMichael Hennerich2010-03-09
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: bf561-acvilon: save the smsc911x mac addressValentin Yakovenkov2010-03-09
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Valentin Yakovenkov <yakovenkov@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: bf537-stamp: unify duplicated ADP5588 headersSonic Zhang2010-03-09
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: bf537-stamp: change CONFIG_USB_SL811_BFIN_IRQ to IRQ_PF4Mike Frysinger2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The Kconfig option was never mainlined, so replace the define with the actual pin that it is hooked up to by default. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: drop unused SL811 platform resources from bf527/pnav boardsMike Frysinger2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | These platforms don't hook up to this USB controller, so no point in declaring resources for it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: BF51x: fix L1 Instruction SRAM sizeMichael Hennerich2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The BF51x's Instruction SRAM is 32kB, not 48kB. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: update AD7879 resources to match the new gpiolib driver supportMichael Hennerich2010-03-09
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: gpio: use shorter nameMichael Hennerich2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The gpio label size is 16 char, but the current code uses a longer name resulting in chopped display. So use a shorter name. Reported-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: pull in asm/bfin_can.h for interrupt masksMichael Hennerich2010-03-09
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: dma-mapping: fix thinko in constant optimizationSonic Zhang2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | * | Blackfin: drop duplicate HOTPLUG Kconfig optionMike Frysinger2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | The option already exists for everyone in init/Kconfig. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: merge common CAN defines into one headersMike Frysinger2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Rather than copy and paste the MMR defines and register layout, consolidate everything in one place. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: wire up the various memory related syscallsMike Frysinger2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | These all just go to the stub syscall at the moment, so this is largely future proofing. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: SMP: enable HAVE_LEGACY_PER_CPU_AREAGraf Yang2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current Blackfin SMP code relies on the legacy cpu area code, so select it until we port things to the newer code. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: MPU: handle caches for reserved memorySonic Zhang2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We weren't handling the user-specified cache behavior for the reserved memory regions (via mem=/max_mem=). The no-MPU code already takes care of this, so add support to the MPU code as well. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: extend bfin-lq035q1-fb resources to include PPI modeMichael Hennerich2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | * | Blackfin: bf527-ezkit: add support for V2.1 boardsMichael Hennerich2010-03-09
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: fix MPU page permission masks overflow when dealing with async memoryBarry Song2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | * | Blackfin: flush caches on SMP when one core calls another via IPIYi Li2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sometimes a SMP system will randomly panic at boot. This is due to caches being out of sync when one core tries to signal the other. So when one core calls another via IPI, flush the data caches. Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: bfin_sport: unify & standardize SPORT masksMike Frysinger2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | * | Blackfin: add UART/SPORT early platform resourcesSonic Zhang2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This lets people easily select the UART/SPORT consoles for early printk while leveraging the pins declared in the boards file. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: allow boards to register early devicesSonic Zhang2010-03-09
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: move SPORT UART resources to boards filesSonic Zhang2010-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rather than keeping the pins in the actual driver and worrying about a mess of Kconfig options, declare all the desired pin resources in the boards file. This lets people easily select the specific pins/ports for the normal emulated UART as well as GPIOs for CTS/RTS. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: bf537-stamp: ad1938: switch to GPIO CSBarry Song2010-03-09
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| | * | Blackfin: move on-chip UART resources to boards filesSonic Zhang2010-03-09
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | Rather than keeping the pins in the actual driver and worrying about a mess of Kconfig options, declare all the desired pin resources in the boards file. This lets people easily select the specific pins/ports for the normal UART as well as GPIOs for CTS/RTS. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * | Merge branch 'for-linus' of ↵Linus Torvalds2010-03-12
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (56 commits) doc: fix typo in comment explaining rb_tree usage Remove fs/ntfs/ChangeLog doc: fix console doc typo doc: cpuset: Update the cpuset flag file Fix of spelling in arch/sparc/kernel/leon_kernel.c no longer needed Remove drivers/parport/ChangeLog Remove drivers/char/ChangeLog doc: typo - Table 1-2 should refer to "status", not "statm" tree-wide: fix typos "ass?o[sc]iac?te" -> "associate" in comments No need to patch AMD-provided drivers/gpu/drm/radeon/atombios.h devres/irq: Fix devm_irq_match comment Remove reference to kthread_create_on_cpu tree-wide: Assorted spelling fixes tree-wide: fix 'lenght' typo in comments and code drm/kms: fix spelling in error message doc: capitalization and other minor fixes in pnp doc devres: typo fix s/dev/devm/ Remove redundant trailing semicolons from macros fix typo "definetly" -> "definitely" in comment tree-wide: s/widht/width/g typo in comments ... Fix trivial conflict in Documentation/laptops/00-INDEX
| | * \ Merge branch 'for-next' into for-linusJiri Kosina2010-03-08
| | |\ \ | | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: Documentation/filesystems/proc.txt arch/arm/mach-u300/include/mach/debug-macro.S drivers/net/qlge/qlge_ethtool.c drivers/net/qlge/qlge_main.c drivers/net/typhoon.c
| | | * Fix spelling of 'platform' in comments and docStefan Weil2010-02-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | | dma-mapping: blackfin: remove the obsolete and unnecessary DMA API commentsFUJITA Tomonori2010-03-12
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pci_dma_sync_single was obsoleted long ago. All the comments are generic, not architecture specific, simply describes some of the DMA-API (and the same comments are in other files). Documentation/DMA-API.txt have more detailed descriptions. This removes the above obsolete and unnecessary DMA API comments. Let's describe the DMA API in only Documentation/DMA-API.txt. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | Merge branch 'master' into percpuTejun Heo2010-02-02
| |\|
| * | Merge branch 'master' into percpuTejun Heo2010-01-04
| |\ \ | | | | | | | | | | | | | | | | | | | | Conflicts: arch/powerpc/platforms/pseries/hvCall.S include/linux/percpu.h
| * | | percpu: remove per_cpu__ prefix.Rusty Russell2009-10-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the return from alloc_percpu is compatible with the address of per-cpu vars, it makes sense to hand around the address of per-cpu variables. To make this sane, we remove the per_cpu__ prefix we used created to stop people accidentally using these vars directly. Now we have sparse, we can use that (next patch). tj: * Updated to convert stuff which were missed by or added after the original patch. * Kill per_cpu_var() macro. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
* | | | kbuild: allow assignment to {A,C,LD}FLAGS_MODULE on the command lineSam Ravnborg2010-08-03
| |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is now possible to assign options to AS, CC and LD on the command line - which is only used when building modules. {A,C,LD}FLAGS_MODULE was all used both in the top-level Makefile in the arch makefiles, thus users had no way to specify additional options to AS, CC, LD when building modules without overriding the original value. Introduce a new set of variables KBUILD_{A,C,LD}FLAGS_MODULE that is used by arch specific files and free up {A,C,LD}FLAGS_MODULE so they can be assigned on the command line. All arch Makefiles that used the old variables has been updated. Note: Previously we had a MODFLAGS variable for both AS and CC. But in favour of consistency this was dropped. So in some cases arch Makefile has one assignmnet replaced by two assignmnets. Note2: MODFLAGS was not documented and is dropped without any notice. I do not expect much/any breakage from this. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Denys Vlasenko <vda.linux@googlemail.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Chen Liqin <liqin.chen@sunplusct.com> Acked-by: Mike Frysinger <vapier@gentoo.org> [blackfin] Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> [avr32] Signed-off-by: Michal Marek <mmarek@suse.cz>
* | | blackfin,kgdb: Do not put PC in gdb_regs into retx.Sonic Zhang2010-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In blackfin, kgdb is running in delayed exception IRQ5 other than in exception IRQ3 directly. Register reti other than retx in pt_regs is the kgdb return address. So, don't put PC in gdb_regs into retx. CC: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Sonic Zhang <sonic.adi@gmail.com> Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
* | | blackfin,kgdb,probe_kernel: Cleanup probe_kernel_read/writeJason Wessel2010-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Blackfin needs it own arch specific probe_kernel_read() and probe_kernel_write(). This was moved out of the kgdb code and into the arch/blackfin/maccess.c, because it is a generic kernel api. The arch specific kgdb.c for blackfin was cleaned of all functions which exist in the kgdb core that do the same thing after resolving the probe_kernel_read() and probe_kernel_write(). This also eliminated the need for most of the #include's. CC: Sonic Zhang <sonic.adi@gmail.com> Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | | FDPIC: Respect PT_GNU_STACK exec protection markings when creating NOMMU stackMike Frysinger2010-01-06
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
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