- 14 Dec, 2009 30 commits
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John Linn authored
The device tree handling for the gpio in the heart beat was not handling the system when there was no gpio and it wasn't working with a newer version of the gpio core which does not have the is-bidir property. Signed-off-by:
John Linn <john.linn@xilinx.com> Signed-off-by:
Michal Simek <monstr@monstr.eu>
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John Williams authored
This is first patch which clear part of uaccess.h. uaccess.h will be clear later. Signed-off-by:
John Williams <john.williams@petalogix.com> Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
memory_start symbol is needed by kernel modules. Signed-off-by:
Michal Simek <monstr@monstr.eu>
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John Williams authored
This will ensure that kernels built with no custom CPU settings will still boot OK on hardware that has additional CPU hardware instructions etc. Signed-off-by:
John Williams <john.williams@petalogix.com> Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
It is generated with longer compatible list Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
Asm code uses barrel-shifter instruction that's why we have to protect cases when HW don't have it. Reported-by:
John Linn <john.linn@xilinx.com> Signed-off-by:
Michal Simek <monstr@monstr.eu>
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John Williams authored
This was intended to allow manual override of CPU settings copied automatically to Kconfig.auto, however it's problematic for several reasons, but mostly: * If the defconfig doesn't have ALLOW_EDIT_AUTO=y, then it's impossible for that defconfig to iverride the values in the kernel source tree. This leads to very strange errors where the kernel is compiled with the wrong CPUFLAGS. Next patch in the series will back out the default in Kconfig.auto to baseline settings, so a kernel built with no default values will at least boot on any hardware, just not make use of additional CPU features. Signed-off-by:
John Williams <john.williams@petalogix.com> Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
Two version are generated. linux.bin.ub which is created from linux.bin file and simpleImage.<dts>.ub which is created from stripped simpleImage.<dts> file Load address and entry point is for microblaze first instruction which is CONFIG_KERNEL_BASE_ADDR variable. There is possible for simpleImage format parse _start symbol too. simpleImage.<dts> is still stripped elf file I cleared simpleImage.<dts>.unstrip file because there are so big. Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
After the signal frame is set up on the userspace stack, ptrace() should be given an opportunity to single-step into the signal handler FRV, Blackfin, mn10300 and UM. Worth to look at that patches. Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
There is missing checking agains PVR but this is not important for now. There are some missing checking too. Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
We used cache_line as cache_line_lenght. For this reason we did cache flushing 4 times longer than was necessary. Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
Till this patch reset always perform writen to 1. Now we can use negative logic and perform reset write to 0. It is opposite level than is currently read from that pin Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
I had to change message for gpio-reset because I always not to see it. Prefix RESET is big and visible. Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
Saving is done in SAVE_STATE macros that's why another save discard previous saved value. This change has no effect to normal programs because they ends in any exception and they are killed. On the other side has effect on debugging. Signed-off-by:
Michal Simek <monstr@monstr.eu>
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steve@digidescorp.com authored
Configuring DEBUG_SLAB causes a noMMU kernel to die during initialization with an invalid virtual address panic in kfree_debugcheck(). The panic is due to an improper definition of pfn_valid(). Signed-off-by:
Steven J. Magnani <steve@digidescorp.com> Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
This patch add support for dynamic function graph tracer. There is one my expactation that I can do flush_icache after all code modification. On microblaze is this safer than do flush for every entry. For icache is used name flush but correct should be invalidation - this will be fix in upcomming new cache implementaion and WB support. Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
For more information look at Documentation/trace folder. Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
With dynamic function tracer, by default, _mcount is defined as an "empty" function, it returns directly without any more action. When enabling it in user-space, it will jump to a real tracing function(ftrace_caller), and do the real job for us. Differ from the static function tracer, dynamic function tracer provides two functions ftrace_make_call()/ftrace_make_nop() to enable/disable the tracing of some indicated kernel functions(set_ftrace_filter). In the kernel version, there is only one "_mcount" string for every kernel function, so, we just need to match this one in mcount_regex of scripts/recordmcount.pl. For more information please look at code and Documentation/trace folder. Steven ACK that scripts/recordmcount.pl part. Acked-by:
Steven Rostedt <rostedt@goodmis.org> Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
Implement MCOUNT_TEST in asm code - it is faster than use generic code Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
If -pg of gcc is enabled with CONFIG_FUNCTION_TRACER=y. a calling to _mcount will be inserted into each kernel function. so, there is a possibility to trace the kernel functions in _mcount. This patch add the specific _mcount support for static function tracing. by default, ftrace_trace_function is initialized as ftrace_stub(an empty function), so, the default _mcount will introduce very little overhead. after enabling ftrace in user-space, it will jump to a real tracing function and do static function tracing for us. Commit message from Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
There are just two major changes Renamed local_irq functions to raw_local_irq in irq.c. Added TRACE_IRQFLAGS_SUPPORT to Kconfig.debug. Look at Documentation/irqflags-tracing.txt Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
Microblaze needs to do lock_init very soon because MMU init calls lock functions. Here is the explanation from Peter Zijlstra why we have to enable __ARCH_WANTS_INTERRUPTS_ON_CTSW. "So we schedule while holding rq->lock (for obvious reasons), but since lockdep tracks held locks per tasks, we need to transfer the held state from the prev to the next task. We do this by explicity calling spin_release(&rq->lock) in context_switch() right before switch_to(), and calling spin_acquire(&rq->lock) in finish_task_switch()->finish_lock_switch(). Now, for some reason lockdep thinks that interrupts got enabled over the context switch (git grep __ARCH_WANTS_INTERRUPTS_ON_CTSW arch/microblaze doesn't seem to turn up anything). Clearly trying to acquire the rq->lock with interrupts enabled is a bad idea and lockdep warns you about this." Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
It is the same counter as we use as free running one. I would like to use it for ftrace. Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
This is working implemetation but the problem is that Microblaze misses frame pointer that's why is there big loop which trace and show all addresses which are in text. It shows addresses which are in registers, etc. This is problem and this is the reason why all Microblaze traces are wrong. There is an option to do hacks and trace the kernel code but this is too complicated. Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
It is important for ftrace irqsoff support Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
The problem was that free_initmem pass to free_initrd_mem got bad aligned __init_begin symbol and free_initrd_mem don't care about __init_end but take PAGE_SIZE instead. Here is behavior in kernel bootlog. ramdisk_execute_command from (init/main.c) was rewrite Freeing unused kernel memory: 6224k freed Failed to execute ��������������{��� Failed to execute ��������������{����. Attempting defaults... Mounting proc: Mounting var: Signed-off-by:
Michal Simek <monstr@monstr.eu>
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Michal Simek authored
Signed-off-by:
Michal Simek <monstr@monstr.eu>
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- 12 Dec, 2009 10 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6Linus Torvalds authored
* 'ixp4xx' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6: IXP4xx: GTWX5715 platform only has two PCI IRQ lines, not four. IXP4xx: Introduce IXP4XX_GPIO_IRQ(n) macro and convert IXP4xx platform files. IXP4xx: move Gemtek GTWX5715 platform macros to the platform code. IXP4xx: Remove unused Motorola PrPMC1100 platform macros. IXP4xx: move FSG platform macros to the platform code. IXP4xx: move DSM G600 platform macros to the platform code. IXP4xx: move NAS100D platform macros to the platform code. IXP4xx: move NSLU2 platform macros to the platform code. IXP4xx: move Coyote platform macros to the platform code. IXP4xx: move AVILA platform macros to the platform code. IXP4xx: move IXDP425 platform macros to the platform code. IXP4xx: Extend PCI MMIO indirect address space to 1 GB. IXP4xx: Fix compilation failure with CONFIG_IXP4XX_INDIRECT_PCI. IXP4xx: Drop "__ixp4xx_" prefix from in/out/ioread/iowrite functions for clarity. IXP4xx: Rename indirect MMIO primitives from __ixp4xx_* to __indirect_*. IXP4xx: Ensure index is positive in irq_to_gpio() and npe_request(). ARM: fix insl() and outsl() endianness on IXP4xx architecture. IXP4xx: Fix normally-disabled debugging text in drivers/net/arm/ixp4xx_eth.c. IXP4xx: change the timer base frequency to 66.666000 MHz.
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Linus Torvalds authored
As shown by the previous patch (6698e347: "tty: Fix BKL taken under a spinlock bug introduced in the BKL split") the BKL removal is prone to some subtle issues, where removing the BKL in one place may in fact make a previously nested BKL call the new outer call, and then prone to nasty deadlocks with other spinlocks. In general, we should never take the BKL while we're holding a spinlock, so let's just add a "might_sleep()" to it (even though the BKL doesn't technically sleep - at least not yet), and we'll get nice warnings the next time this kind of problem happens during BKL removal. Acked-and-Tested-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Alan Cox authored
The fasync path takes the BKL (it probably doesn't need to in fact) while holding the file_list spinlock. You can't do that with the kernel lock: it causes lock inversions and deadlocks. Leave the BKL over that bit for the moment. Identified by AKPM. Signed-off-by:
Alan Cox <alan@linux.intel.com> Acked-and-Tested-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpcLinus Torvalds authored
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (151 commits) powerpc: Fix usage of 64-bit instruction in 32-bit altivec code MAINTAINERS: Add PowerPC patterns powerpc/pseries: Track previous CPPR values to correctly EOI interrupts powerpc/pseries: Correct pseries/dlpar.c build break without CONFIG_SMP powerpc: Make "intspec" pointers in irq_host->xlate() const powerpc/8xx: DTLB Miss cleanup powerpc/8xx: Remove DIRTY pte handling in DTLB Error. powerpc/8xx: Start using dcbX instructions in various copy routines powerpc/8xx: Restore _PAGE_WRITETHRU powerpc/8xx: Add missing Guarded setting in DTLB Error. powerpc/8xx: Fixup DAR from buggy dcbX instructions. powerpc/8xx: Tag DAR with 0x00f0 to catch buggy instructions. powerpc/8xx: Update TLB asm so it behaves as linux mm expects. powerpc/8xx: Invalidate non present TLBs powerpc/pseries: Serialize cpu hotplug operations during deactivate Vs deallocate pseries/pseries: Add code to online/offline CPUs of a DLPAR node powerpc: stop_this_cpu: remove the cpu from the online map. powerpc/pseries: Add kernel based CPU DLPAR handling sysfs/cpu: Add probe/release files powerpc/pseries: Kernel DLPAR Infrastructure ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: hda - Overwrite pin config on intel DG45ID board. intelhdmi - dont power off HDA link ALSA: hrtimer - Fix lock-up ALSA: intelhdmi - add channel mapping for typical configurations ALSA: intelhdmi - channel mapping applies to Pin ALSA: intelhdmi - accept DisplayPort pin ALSA: hda - show HBR(High Bit Rate) pin cap in procfs ALSA: hda - Fix LED GPIO setup for HP laptops with IDT codecs ASoC: Fix build of OMAP sound drivers ALSA: opti93x: fix irq releasing if the irq cannot be allocated
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Linus Torvalds authored
Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (75 commits) omap3: Fix OMAP35XX_REV macros omap: serial: fix non-empty uart fifo read abort omap3: Zoom2/3: Update hsmmc board config params omap3 : Enable TWL4030 Keypad for Zoom2 and Zoom3 boards omap3: id code detection 3525 vs 3515 omap3: rx51: Use wl1251 in SPI mode 3 omap3: zoom2/3: make MMC slot work again omap1: htcherald: Update defconfig to include mux support omap1: LCD_DMA: Use some define rather than a hexadecimal omap: header: remove unused data-type omap: arch/arm/plat-omap/devices.c - sort alphabetically omap: Correcting GPMC_CONFIG1_DEVICETYPE_NAND OMAP3: serial - allow platforms specify which UARTs to initialize omap3: cm-t35: add mux initialization OMAP4: Sync up omap4430 defconfig OMAP4: Remove the secondary wait loop OMAP4: AuxCoreBoot registers only accessible in secure mode OMAP4: Fix SRAM base and size OMAP4: Fix cpu detection omap3: pandora: board file updates for .33 ...
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: be2net: fix error in rx completion processing. igbvf: avoid reset storms due to mailbox issues igb: fix handling of mailbox collisions between PF/VF usb: remove rare pm primitive for conversion to new API
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git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: slab, kmemleak: pass the correct pointer to kmemleak_erase() slab, kmemleak: stop calling kmemleak_erase() unconditionally SLAB: Fix unlikely() annotation in __cache_alloc_node() SLAB: Fix lockdep annotations for CPU hotplug SLUB: Fix __GFP_ZERO unlikely() annotation slub: allow stats to be cleared
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Linus Torvalds authored
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (21 commits) sched: Remove forced2_migrations stats sched: Fix memory leak in two error corner cases sched: Fix build warning in get_update_sysctl_factor() sched: Update normalized values on user updates via proc sched: Make tunable scaling style configurable sched: Fix missing sched tunable recalculation on cpu add/remove sched: Fix task priority bug sched: cgroup: Implement different treatment for idle shares sched: Remove unnecessary RCU exclusion sched: Discard some old bits sched: Clean up check_preempt_wakeup() sched: Move update_curr() in check_preempt_wakeup() to avoid redundant call sched: Sanitize fork() handling sched: Clean up ttwu() rq locking sched: Remove rq->clock coupling from set_task_cpu() sched: Consolidate select_task_rq() callers sched: Remove sysctl.sched_features sched: Protect sched_rr_get_param() access to task->sched_class sched: Protect task->cpus_allowed access in sched_getaffinity() sched: Fix balance vs hotplug race ... Fixed up conflicts in kernel/sysctl.c (due to sysctl cleanup)
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Takashi Iwai authored
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