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2009-10-14omap: Initialization of SDRC params on Zoom2Teerth Reddy1-1/+3
This patch initializes the correct SDRC settings required for DVFS on Zoom2. Signed-off-by: Teerth Reddy <[email protected]> Signed-off-by: Kevin Hilman <[email protected]> Signed-off-by: Tony Lindgren <[email protected]>
2009-10-14omap: RX-51: Drop I2C-1 speed to 2200Aaro Koskinen1-1/+1
The I2C-1 bus frequency on RX-51 should be 2.2 MHz. The speed is limited by TWL5030/GAIA; a higher speed could lead to errors on the interface. The maximum speed depends on the system clock for GAIA: 2.2 MHz (if 19.2 MHz), 2.4 MHz (26 MHz) or 2.9 MHz (38.4 MHz). Signed-off-by: Aaro Koskinen <[email protected]> Signed-off-by: Tony Lindgren <[email protected]>
2009-10-14omap: SDMA: Fixing bug in omap_dma_set_global_params()Anuj Aggarwal1-6/+9
Argument tparams was not being used to program global register GCR.HI_THREAD_RESERVED. This patch fixes the same. Signed-off-by: Anuj Aggarwal <[email protected]> Signed-off-by: Tony Lindgren <[email protected]>
2009-10-14omap: CONFIG_ISP1301_OMAP redefined in Beagle defconfigSanjeev Premi1-1/+0
The symbol CONFIG_ISP1301_OMAP was defined twice in the defconfig. This was causing the warning: arch/arm/configs/omap3_beagle_defconfig:972:warning: override: reassigning to symbol ISP1301_OMAP Signed-off-by: Sanjeev Premi <[email protected]> Signed-off-by: Tony Lindgren <[email protected]>
2009-10-14sched: Disable SD_PREFER_LOCAL for MC/CPU domainsPeter Zijlstra1-0/+1
Yanmin reported that both tbench and hackbench were significantly hurt by trying to keep tasks local on these domains, esp on small cache machines. So disable it in order to promote spreading outside of the cache domains. Reported-by: "Zhang, Yanmin" <[email protected]> Signed-off-by: Peter Zijlstra <[email protected]> CC: Mike Galbraith <[email protected]> LKML-Reference: <1255083400.8802.15.camel@laptop> Signed-off-by: Ingo Molnar <[email protected]>
2009-10-14x86, perf_event: Rename 'performance counter interrupt'Li Hong1-2/+2
In 'cdd6c482c9ff9c55475ee7392ec8f672eddb7be6', we renamed Performance Counters -> Performance Events. The name showed up in /proc/interrupts also needs a change. I use PMI (Performance monitoring interrupt) here, since it is the official name used in Intel's documents. Signed-off-by: Li Hong <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Paul Mackerras <[email protected]> LKML-Reference: <20091014105039.GA22670@uhli> Signed-off-by: Ingo Molnar <[email protected]>
2009-10-14[S390] Add highgprs facility to /proc/cpuinfoAndreas Krebbel1-3/+3
This patch makes the hwcap bit for the high gprs feature to be visible in /proc/cpuinfo. Signed-off-by: Andreas Krebbel <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2009-10-14[S390] hypfs: Use subcode 6 if subcode 7 is not availableMichael Holzheu1-1/+1
Hypfs never worked on systems that only provide D204 subcode 6. In these cases we nevertheless used subcode 7. With this fix, we use subcode 6, if it is available and the system does not provide subcode 7. Signed-off-by: Michael Holzheu <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2009-10-14ARM: 5760/1: ep93xx: fix build error in edb93xx.cHartley Sweeten1-1/+1
Fix a build error due to a typo (missing comma) in: ARM: 5754/1: ep93xx: update i2c support Signed-off-by: H Hartley Sweeten <[email protected]> Acked-by: Ryan Mallon <[email protected]> Signed-off-by: Russell King <[email protected]>
2009-10-14ARM: 5759/1: Add register information of threads to coredumpArtem Bityutskiy2-0/+12
Defines ELF_CORE_COPY_TASK_REGS so that CPU register information of every thread is included in coredump. Without this, only the faulting thread is coredumped. Cc: Roger Quadros <[email protected]> Cc: [email protected] Signed-off-by: Mika Westerberg <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]> Signed-off-by: Russell King <[email protected]>
2009-10-14ARM: 5757/1: Thumb-2: Correct "mov.w pc, lr" instruction which is unpredictableCatalin Marinas2-14/+29
The 32-bit wide variant of "mov pc, reg" in Thumb-2 is unpredictable causing improper handling of the undefined instructions not caught by the kernel. This patch adds a movw_pc macro for such situations (currently only used in call_fpe). Signed-off-by: Catalin Marinas <[email protected]> Signed-off-by: Russell King <[email protected]>
2009-10-14sh: Fix a TRACE_IRQS_OFF typo.Paul Mundt1-1/+1
The resume_userspace path had TRACE_IRQS_OFF written incorrectly and so never handled the transition properly. This was fixed once before but seems to have made it back in the tree. Fix it for good. Signed-off-by: Paul Mundt <[email protected]>
2009-10-14sh: Optimize the setup_rt_frame() I-cache flush.Paul Mundt1-2/+1
This only needs to flush the return code via the legacy path, and just invalidates uselessly otherwise. This makes the behaviour consistent for all of the trampoline setup paths. Signed-off-by: Paul Mundt <[email protected]>
2009-10-14sh: Populate initial secondary CPU info from boot_cpu_data.Paul Mundt1-0/+2
The secondary CPU info was seeing corrupted results due to not entering all of the setup paths taken by the boot CPU. So we just memcpy() the boot cpu data over directly, and then fix up the per-CPU bits. Signed-off-by: Paul Mundt <[email protected]>
2009-10-14sh: Tidy up SMP cpuinfo.Paul Mundt1-0/+2
Trivial change for cleaning up the cpuinfo pretty printing on SMP, adds a newline between CPUs. Signed-off-by: Paul Mundt <[email protected]>
2009-10-14sh: Use boot_cpu_data for FPU tests in sigcontext paths.Paul Mundt1-3/+3
We do not want to use smp_processor_id() from these paths, as they trip preempt BUGs. Switch the test over to the boot cpu directly. Signed-off-by: Paul Mundt <[email protected]>
2009-10-14powerpc/pci: Fix MODPOST warningHeiko Schocher1-1/+1
making a powerpc target with PCI support, shows the following warning: MODPOST vmlinux.o WARNING: vmlinux.o(.text+0x10430): Section mismatch in reference from the function pcibios_allocate_bus_resources() to the function .init.text:reparent_resources() The function pcibios_allocate_bus_resources() references the function __init reparent_resources(). This is often because pcibios_allocate_bus_resources lacks a __init annotation or the annotation of reparent_resources is wrong. This patch fix this warning by removing the __init annotation before reparent_resources. Signed-off-by: Heiko Schocher <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2009-10-14powerpc/oprofile: Add ppc750 CL as supported by oprofileDragos Tatulea1-0/+2
Here's a patch that adds the ppc750 CL cpu as supported by oprofile. Signed-off-by: Dragos Tatulea <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2009-10-14powerpc: warning: allocated section `.data_nosave' not in segmentSean MacLennan1-0/+1
We need to align before the output section. Having the align inside the output section causes the linker to put some filler in there, which makes it a non-empty section, but this section isn't assigned to a segment so you get a warning from the linker. Signed-off-by: Sean MacLennan <[email protected]> Acked-by: Segher Boessenkool <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2009-10-14powerpc/kgdb: Fix build failure caused by "kgdb.c: unused variable 'acc'"Anton Vorontsov1-6/+0
'acc' isn't used anywhere and thus triggers gcc warning, which causes build error with CONFIG_PPC_DISABLE_WERROR=n (default): cc1: warnings being treated as errors arch/powerpc/kernel/kgdb.c: In function 'gdb_regs_to_pt_regs': arch/powerpc/kernel/kgdb.c:289: warning: unused variable 'acc' make[1]: *** [arch/powerpc/kernel/kgdb.o] Error 1 Signed-off-by: Anton Vorontsov <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2009-10-14powerpc: Fix hypervisor TLB batchingAnton Blanchard2-7/+6
Profiling of a page fault scalability microbenchmark shows flush_hash_range is not calling the batch hpte invalidate hcall (H_BULK_REMOVE). It turns out we have a duplicate firmware feature for hcall-bulk and the current setup code stops after finding the first match. This meant we never batch and always do individual invalidates. The patch below removes the duplicate and shifts FW_FEATURE_CMO to close the gap. With the patch applied the single threaded page fault rate improves from 217169 to 238755 per second on a POWER5 test box, a 10% improvement. Signed-off-by: Anton Blanchard <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2009-10-14powerpc/mm: Fix hang accessing top of vmalloc spaceBenjamin Herrenschmidt1-6/+4
On pSeries, we always force the IO space to be mapped using 4K pages even with a 64K base page size to cope with some limitations in the HV interface to some devices. However, the SLB miss handler code to discriminate between vmalloc and ioremap space uses a CPU feature section such that the code is nop'ed out when the processor support large pages non-cachable mappings. Thus, we end up always using the ioremap page size for vmalloc segments on such processors, causing a discrepency between the segment and the hash table, and thus a hang continously hashing the page. It works for the first segment of the vmalloc space since that segment is "bolted" in by C code correctly, and thankfully we almost never use the vmalloc space beyond the first segment, but the new percpu code made the bug happen. This fixes it by removing the feature section from the assembly, we now always do the comparison between vmalloc and ioremap. Signed-off-by; Benjamin Herrenschmidt <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2009-10-14powerpc: Fix memory leak in axon_msi.cMichael Ellerman1-1/+1
cppcheck found a memory leak in axon_msi, if dcr_base or dcr_len are zero, we have already allocated msic, so we should free it in the error path. Signed-off-by: Eric Sesterhenn <[email protected]> Acked-by: Michael Ellerman <[email protected]> Acked-by: Arnd Bergmann <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2009-10-14powerpc/pmac: Fix issues with sleep on some powerbooksBenjamin Herrenschmidt1-2/+5
Since the change of how interrupts are disabled during suspend, certain PowerBook models started exhibiting various issues during suspend or resume from sleep. I finally tracked it down to the code that runs various "platform" functions (kind of little scripts extracted from the device-tree), which uses our i2c and PMU drivers expecting interrutps to work, and at a time where with the new scheme, they have been disabled. This causes timeouts internally which for some reason results in the PMU being unable to see the trackpad, among other issues, really it depends on the machine. Most of the time, we fail to properly adjust some clocks for suspend/resume so the results are not always predictable. This patch fixes it by using IRQF_TIMER for both the PMU and the I2C interrupts. I prefer doing it this way than moving the call sites since I really want those platform functions to still be called after all drivers (and before sysdevs). We also do a slight cleanup to via-pmu.c driver to make sure the ADB autopoll mask is handled correctly when doing bus resets Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2009-10-13[IA64] SMT friendly version of spin_unlock_wait()Tony Luck1-2/+15
We can be kinder to SMT systems in spin_unlock_wait. Signed-off-by: Tony Luck <[email protected]>
2009-10-13powerpc64/ftrace: use PACA to retrieve TOC in mod_return_to_handlerSteven Rostedt1-2/+1
The mod_return_to_handler needs to switch to the kernel TOC before jumping to a the kernel code. It currently does this by looking at the kernel function data and retrieves the TOC that way. Not only is this inefficient, it also breaks with a relocatable kernel. The PACA contains the kernel TOC and we can easily retrieve it that way. Reported-by: Sachin Sant <[email protected]> Signed-off-by: Steven Rostedt <[email protected]>
2009-10-13powerpc/ftrace: show real return addresses in modulesSteven Rostedt1-3/+7
When the function graph tracer is enabled, it replaces the return address with a hook back to the tracer. This makes back traces see the hook instead of the actual return address. The current code also shows the real address by checking if the return address jumps to the return_to_handler. If it is, is also prints out the saved real return address. On powerpc64, some modules may return to mod_return_to_handler, which is not checked. This patch will also show the real address if a return is to mod_return_to_handler as well. Signed-off-by: Steven Rostedt <[email protected]>
2009-10-13[IA64] use printk_once() unaligned.c/io_common.cMarcin Slusarz2-10/+4
Use printk_once() in a couple of places. Signed-off-by: Marcin Slusarz <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Tony Luck <[email protected]>
2009-10-13[IA64] Require SAL 3.2 in order to do extended config space opsMatthew Wilcox1-2/+7
We had assumed that SAL firmware would return an error if it didn't understand extended config space. Unfortunately, the SAL on the SGI 750 doesn't do that, it panics the machine. So, condition the extended PCI config space accesses on SAL revision 3.2. Signed-off-by: Matthew Wilcox <[email protected]> Tested-by: Brad Spengler <[email protected]> Signed-off-by: Tony Luck <[email protected]>
2009-10-13[IA64] unsigned cannot be less than 0 in sn_hwperf_ioctl()Roel Kluin1-3/+4
struct sn_hwperf_ioctl_args member arg (u64) cannot be less than 0. Signed-off-by: Roel Kluin <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Tony Luck <[email protected]>
2009-10-13[IA64] Restore registers in the stack on INITTakao Indoh1-47/+57
Registers are not saved anywhere when INIT comes during fsys mode and we cannot know what happened when we investigate vmcore captured by kdump. This patch adds new function finish_pt_regs() so registers can be saved in such a case. Signed-off-by: Takao Indoh <[email protected]> Signed-off-by: Tony Luck <[email protected]>
2009-10-13Merge git://git.infradead.org/~dwmw2/iommu-2.6.32Linus Torvalds1-1/+1
* git://git.infradead.org/~dwmw2/iommu-2.6.32: x86: Move pci_iommu_init to rootfs_initcall() Run pci_apply_final_quirks() sooner. Mark pci_apply_final_quirks() __init rather than __devinit Rename pci_init() to pci_apply_final_quirks(), move it to quirks.c intel-iommu: Yet another BIOS workaround: Isoch DMAR unit with no TLB space intel-iommu: Decode (and ignore) RHSA entries intel-iommu: Make "Unknown DMAR structure" message more informative
2009-10-13MXC: fix reset for mx31, mx35 and mx27 SoCsValentin Longchamp3-3/+3
The clock name for the watchdog devices was not set consistently with mx21 on these platforms, resulting in the reset not to work. Signed-off-by: Valentin Longchamp <[email protected]> Signed-off-by: Sascha Hauer <[email protected]>
2009-10-13fix pcm037_eet compilation with the new SPI driverGuennadi Liakhovetski2-15/+15
Fix pcm037_eet compilation with the new imx SPI driver by unifying platform device names. Signed-off-by: Guennadi Liakhovetski <[email protected]> Acked-by: Valentin Longchamp <[email protected]> Signed-off-by: Sascha Hauer <[email protected]>
2009-10-13fix compilation of i.MX31 platformsGuennadi Liakhovetski1-0/+2
mxc_iomux_v3_init() is defined in arch/arm/plat-mxc/iomux-v3.c, which is not linked for i.MX31 and produces an undefined reference error. Fix this by building the offending code only for i.MX35. Signed-off-by: Guennadi Liakhovetski <[email protected]> Signed-off-by: Sascha Hauer <[email protected]>
2009-10-13pcm970 mmc: Fix ro switchSascha Hauer1-1/+1
We have to use mxc_gpio_mode() for the card detection pin instead of mxc_gpio_setup_multiple_pins() because the latter does a gpio_request() and thus a later gpio_request() fails. Signed-off-by: Sascha Hauer <[email protected]>
2009-10-13pcm038: Add SPI/MC13783 supportSascha Hauer1-2/+94
Signed-off-by: Sascha Hauer <[email protected]>
2009-10-13sparc64: Set IRQF_DISABLED on LDC channel IRQs.David S. Miller1-2/+2
With lots of virtual devices it's easy to generate a lot of events and chew up the kernel IRQ stack. Reported-by: hyl <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2009-10-13x86/paravirt: Use normal calling sequences for irq enable/disableJeremy Fitzhardinge2-28/+10
Bastian Blank reported a boot crash with stackprotector enabled, and debugged it back to edx register corruption. For historical reasons irq enable/disable/save/restore had special calling sequences to make them more efficient. With the more recent introduction of higher-level and more general optimisations this is no longer necessary so we can just use the normal PVOP_ macros. This fixes some residual bugs in the old implementations which left edx liable to inadvertent clobbering. Also, fix some bugs in __PVOP_VCALLEESAVE which were revealed by actual use. Reported-by: Bastian Blank <[email protected]> Signed-off-by: Jeremy Fitzhardinge <[email protected]> Cc: Stable Kernel <[email protected]> Cc: Xen-devel <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2009-10-13sh: ftrace: Fix up syscall tracepoint support.Paul Mundt1-10/+27
Sync up with latest core changes in the syscalls tracing area: - tracing: Map syscall name to number (syscall_name_to_nr()) - tracing: Call arch_init_ftrace_syscalls at boot - tracing: add support tracepoint ids (set_syscall_{enter,exit}_id()) Taken from the s390 change. Signed-off-by: Paul Mundt <[email protected]>
2009-10-13sh: force dcache flush if dcache_dirty bit set.Paul Mundt1-1/+1
This too follows the ARM change, given that the issue at hand applies to all platforms that implement lazy D-cache writeback. This fixes up the case when a page mapping disappears between the flush_dcache_page() call (when PG_dcache_dirty is set for the page) and the update_mmu_cache() call -- such as in the case of swap cache being freed early. This kills off the mapping test in update_mmu_cache() and switches to simply testing for PG_dcache_dirty. Reported-by: Nitin Gupta <[email protected]> Reported-by: Hugh Dickins <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2009-10-13sh: update die() output.Paul Mundt1-3/+4
This follows the ARM change, as SH had all of the same issues: Make die() better match x86: - add printing of the last accessed sysfs file - ensure console_verbose() is called under the lock - ensure we panic outside of oops_exit() Signed-off-by: Paul Mundt <[email protected]>
2009-10-12x86: fix kernel panic on 32 bits when profilingH. Peter Anvin1-1/+2
Latest kernel has a kernel panic in booting on i386 machine when profile=2 setting in cmdline. It is due to 'sp' being incorrect in profile_pc(). BUG: unable to handle kernel NULL pointer dereference at 00000246 IP: [<c01288b6>] profile_pc+0x2a/0x48 *pde = 00000000 Oops: 0000 [#1] SMP This differs from the original version by Alex Shi in that we use the kernel_stack_pointer() inline already defined in <asm/ptrace.h> for this purpose, instead of #ifdef. Originally-by: Alex Shi <[email protected]> Cc: "Chen, Tim C" <[email protected]> Cc: "Rafael J. Wysocki" <[email protected]> Cc: Andrew Morton <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]>
2009-10-12ARM: force dcache flush if dcache_dirty bit setNitin Gupta1-6/+3
On ARM, update_mmu_cache() does dcache flush for a page only if it has a kernel mapping (page_mapping(page) != NULL). The correct behavior would be to force the flush based on dcache_dirty bit only. One of the cases where present logic would be a problem is when a RAM based block device[1] is used as a swap disk. In this case, we would have in-memory data corruption as shown in steps below: do_swap_page() { - Allocate a new page (if not already in swap cache) - Issue read from swap disk - Block driver issues flush_dcache_page() - flush_dcache_page() simply sets PG_dcache_dirty bit and does not actually issue a flush since this page has no user space mapping yet. - Now, if swap disk is almost full, this newly read page is removed from swap cache and corrsponding swap slot is freed. - Map this page anonymously in user space. - update_mmu_cache() - Since this page does not have kernel mapping (its not in page/swap cache and is mapped anonymously), it does not issue dcache flush even if dcache_dirty bit is set by flush_dcache_page() above. <user now gets stale data since dcache was never flushed> } Same problem exists on mips too. [1] example: - brd (RAM based block device) - ramzswap (RAM based compressed swap device) Signed-off-by: Nitin Gupta <[email protected]> Signed-off-by: Russell King <[email protected]>
2009-10-12x86: Fix Suspend to RAM freeze on Acer Aspire 1511Lmi laptopJan Beulich2-2/+14
Move the trampoline and accessors back out of .cpuinit.* for the case of 64-bits+ACPI_SLEEP. This solves s2ram hangs reported in: http://bugzilla.kernel.org/show_bug.cgi?id=14279 Reported-and-bisected-by: Christian Casteyde <[email protected]> Signed-off-by: Jan Beulich <[email protected]> Cc: <[email protected]> Cc: "Andrew Morton" <[email protected]> Cc: "Rafael J. Wysocki" <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2009-10-12x86: Move pci_iommu_init to rootfs_initcall()David Woodhouse1-1/+1
We want this to happen after the PCI quirks, which are now running at the very end of the fs_initcalls. This works around the BIOS problems which were originally addressed by commit db8be50c4307dac2b37305fc59c8dc0f978d09ea ('USB: Work around BIOS bugs by quiescing USB controllers earlier'), which was reverted in commit d93a8f829fe1d2f3002f2c6ddb553d12db420412. Signed-off-by: David Woodhouse <[email protected]>
2009-10-12Merge branch 'fix' of ↵Russell King354-5225/+2580
git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
2009-10-12sparc64: Fix D-cache flushing on swapin from SW devices.David S. Miller1-1/+1
Thanks to tip form ARM folks and Russell King. If flush_dcache_page() occurs on a swapin it will have a mapping and we'll try to defer the flush by setting the dirty bit. But when it hits update_dcache_page() we won't flush because the page won't have a mapping any more. So remove the mapping requirement in flush_dcache(). Signed-off-by: David S. Miller <[email protected]>
2009-10-12[ARM] pxa: workaround errata #37 by not using half turbo switchingDennis O'Brien1-1/+1
PXA27x Errata #37 implies system will hang when switching into or out of half turbo (HT bit in CLKCFG) mode, workaround this by not using it. Signed-off-by: Dennis O'Brien <[email protected]> Cc: stable-2.6.31 <[email protected]> Signed-off-by: Eric Miao <[email protected]>
2009-10-12[ARM] pxa/csb726: adjust duplicate structure field initializationJulia Lawall1-1/+1
Currently the irq_type field of the csb726_lan_config structure is initialized twice. The value in the first case, SMSC911X_IRQ_POLARITY_ACTIVE_LOW, is normally stored in the irq_polarity field, so I have renamed the field in the first initialization to that. Signed-off-by: Julia Lawall <[email protected]> Signed-off-by: Eric Miao <[email protected]>
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