Eric Lee / smarc-fsl-linux-kernel

07 Jan, 2012

2 commits

11 Feb, 2011

1 commit

  • 4c4231ea2   [PARISC] Convert to new irq_chip functions ... Browse Code »

    Convert all the parisc driver interrupt handlers (dino, eisa, gsc,
    iosapic and superio) as well as the cpu interrupts. Prepare
    show_interrupts for GENERIC_HARDIRQS_NO_DEPRECATED and finally selects
    that Kconfig option

    [jejb: compile and testing fixes]
    Signed-off-by: Thomas Gleixner
    Signed-off-by: James Bottomley

    Thomas Gleixner
     

05 Dec, 2010

1 commit

  • 51890613f   parisc: convert the rest of the irq handlers to simple/percpu ... Browse Code »

    The generic conversion eliminates the spurious no_ack and no_end
    routines, converts all the cascaded handlers to handle_simple_irq() and
    makes iosapic use a modified handle_percpu_irq() to become the same as
    the CPU irq's. This isn't an essential change, but it eliminates the
    mask/unmask overhead of handle_level_irq().

    Signed-off-by: James Bottomley
    Tested-by: Helge Deller
    Signed-off-by: Kyle McMartin

    James Bottomley
     

14 Oct, 2010

2 commits

16 Dec, 2009

1 commit

02 Aug, 2009

1 commit

03 Jul, 2009

2 commits

  • dfe075650   parisc: remove obsolete hw_interrupt_type ... Browse Code »

    The defines and typedefs (hw_interrupt_type, no_irq_type, irq_desc_t) have
    been kept around for migration reasons. After more than two years it's
    time to remove them finally.

    This patch cleans up one of the remaining users. When all such patches
    hit mainline we can remove the defines and typedefs finally.

    Impact: cleanup

    Convert the last remaining users to struct irq_chip and remove the
    define.

    Signed-off-by: Thomas Gleixner
    Signed-off-by: Andrew Morton
    Signed-off-by: Kyle McMartin

    Thomas Gleixner
     
  • fed99b1e8   parisc: advertise PCI devs after "assign_resources" ... Browse Code »

    Alex Chiang asked me why PARISC was calling pci_bus_add_devices()
    and pci_bus_assign_resources() in the opposite order from everyone else.
    No reason and I couldn't see any data dependency.
    Patch below applies cleanly to 2.6.30-rc2.

    Later, I suspected the code worked only because no drivers would be
    loaded/ready until much later in the system initialization sequence.

    Tested "LBA" code on J6000 (32-bit) and A500 (64-bit SMP) with 2.6.30-rc2.
    Not tested with any Dino controllers.
    Not tested with PCI-PCI Bridge (TBD).

    Reported-by: Alex Chiang
    Signed-off-by: Grant Grundler
    Signed-off-by: Kyle McMartin

    Grant Grundler
     

02 Apr, 2009

1 commit

  • c18b46089   parisc: drivers: fix warnings ... Browse Code »

    ccio-dma.c:456: warning: overflow in implicit constant conversion
    ccio-dma.c:459: warning: overflow in implicit constant conversion
    ccio-dma.c:1032: warning: unused variable 'j'
    ccio-dma.c:1031: warning: unused variable 'max'
    ccio-dma.c:1031: warning: unused variable 'min'
    ccio-dma.c:1031: warning: unused variable 'avg'
    ccio-dma.c:1403: warning: format '%08lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
    ccio-dma.c:1403: warning: format '%08lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
    ccio-dma.c:1554: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
    dino.c:822: warning: format '%lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
    dino.c:822: warning: format '%lx' expects type 'long unsigned int', but argument 5 has type 'resource_size_t'
    dino.c:902: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
    dino.c:902: warning: format '%lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
    asp.c:84: warning: format '%lx' expects type 'long unsigned int', but argument 4 has type 'resource_size_t'
    eisa.c:317: warning: format '%08lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
    eisa_enumerator.c:101: warning: format '%lx' expects type 'long unsigned int', but argument 2 has type 'resource_size_t'
    eisa_enumerator.c:101: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'
    eisa_enumerator.c:191: warning: format '%lx' expects type 'long unsigned int', but argument 2 has type 'resource_size_t'
    eisa_enumerator.c:191: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'resource_size_t'

    Signed-off-by: Alexander Beregalov
    Signed-off-by: Kyle McMartin

    Alexander Beregalov
     

13 Mar, 2009

2 commits

10 Jan, 2009

1 commit

  • 29a41e9e0   Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 ... Browse Code »

    * git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
    parisc: export length of os_hpmc vector
    parisc: fix kernel crash (protection id trap) when compiling ruby1.9
    parisc: Use DEFINE_SPINLOCK
    parisc: add uevent helper for parisc bus
    parisc: fix ipv6 checksum
    parisc: quiet palo not-found message from "which"
    parisc: Replace NR_CPUS in parisc code
    parisc: trivial fixes
    parisc: fix braino in commit adding __space_to_prot
    parisc: factor out sid to protid conversion
    parisc: use leX_to_cpu in place of __fswabX
    parisc: fix GFP_KERNEL use while atomic in unwinder
    parisc: remove dead BIO_VMERGE_BOUNDARY and BIO_VMERGE_MAX_SIZE definitions
    parisc: set_time() catch errors
    parisc: use the new byteorder headers
    parisc: drivers/parisc/: make code static
    parisc: lib/: make code static

    Linus Torvalds
     

08 Jan, 2009

1 commit

06 Jan, 2009

1 commit

  • df8e5bc6b   parisc: drivers/parisc/: make code static ... Browse Code »

    Make the following needlessly global code static:

    - asp.c: asp_init_chip()
    - ccio-dma.c: ccio_io_pdir_entry()
    - dino.c: struct dino_port_ops
    - dino.c: struct dino_bios_ops
    - hppb.c: struct hppb_card_head
    - lasi.c: lasi_led_init()
    - lasi.c: lasi_init_chip()
    - lba_pci.c: struct lba_bios_ops
    - sba_iommu.c: sba_io_pdir_entry()
    - sba_iommu.c: sba_driver_callback()
    - sba_iommu.c: sba_driver_callback()
    - wax.c: wax_init_chip()

    Signed-off-by: Adrian Bunk
    Cc: Matthew Wilcox
    Cc: Grant Grundler
    Signed-off-by: Andrew Morton
    Signed-off-by: Kyle McMartin

    Adrian Bunk
     

16 Oct, 2008

1 commit

  • 08678b084   generic: sparse irqs: use irq_desc() together with dyn_array, instead of irq_desc[] ... Browse Code »

    add CONFIG_HAVE_SPARSE_IRQ to for use condensed array.
    Get rid of irq_desc[] array assumptions.

    Preallocate 32 irq_desc, and irq_desc() will try to get more.

    ( No change in functionality is expected anywhere, except the odd build
    failure where we missed a code site or where a crossing commit itroduces
    new irq_desc[] usage. )

    v2: according to Eric, change get_irq_desc() to irq_desc()

    Signed-off-by: Yinghai Lu
    Signed-off-by: Ingo Molnar

    Yinghai Lu
     

15 May, 2008

1 commit

21 Apr, 2008

1 commit

07 Oct, 2006

1 commit

05 Oct, 2006

1 commit

  • 7d12e780e   IRQ: Maintain regs pointer globally rather than passing to IRQ handlers ... Browse Code »

    Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
    of passing regs around manually through all ~1800 interrupt handlers in the
    Linux kernel.

    The regs pointer is used in few places, but it potentially costs both stack
    space and code to pass it around. On the FRV arch, removing the regs parameter
    from all the genirq function results in a 20% speed up of the IRQ exit path
    (ie: from leaving timer_interrupt() to leaving do_IRQ()).

    Where appropriate, an arch may override the generic storage facility and do
    something different with the variable. On FRV, for instance, the address is
    maintained in GR28 at all times inside the kernel as part of general exception
    handling.

    Having looked over the code, it appears that the parameter may be handed down
    through up to twenty or so layers of functions. Consider a USB character
    device attached to a USB hub, attached to a USB controller that posts its
    interrupts through a cascaded auxiliary interrupt controller. A character
    device driver may want to pass regs to the sysrq handler through the input
    layer which adds another few layers of parameter passing.

    I've build this code with allyesconfig for x86_64 and i386. I've runtested the
    main part of the code on FRV and i386, though I can't test most of the drivers.
    I've also done partial conversion for powerpc and MIPS - these at least compile
    with minimal configurations.

    This will affect all archs. Mostly the changes should be relatively easy.
    Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

    struct pt_regs *old_regs = set_irq_regs(regs);

    And put the old one back at the end:

    set_irq_regs(old_regs);

    Don't pass regs through to generic_handle_irq() or __do_IRQ().

    In timer_interrupt(), this sort of change will be necessary:

    - update_process_times(user_mode(regs));
    - profile_tick(CPU_PROFILING, regs);
    + update_process_times(user_mode(get_irq_regs()));
    + profile_tick(CPU_PROFILING);

    I'd like to move update_process_times()'s use of get_irq_regs() into itself,
    except that i386, alone of the archs, uses something other than user_mode().

    Some notes on the interrupt handling in the drivers:

    (*) input_dev() is now gone entirely. The regs pointer is no longer stored in
    the input_dev struct.

    (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
    something different depending on whether it's been supplied with a regs
    pointer or not.

    (*) Various IRQ handler function pointers have been moved to type
    irq_handler_t.

    Signed-Off-By: David Howells
    (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)

    David Howells
     

01 Jul, 2006

1 commit

30 Jun, 2006

1 commit

  • d1bef4ed5   [PATCH] genirq: rename desc->handler to desc->chip ... Browse Code »

    This patch-queue improves the generic IRQ layer to be truly generic, by adding
    various abstractions and features to it, without impacting existing
    functionality.

    While the queue can be best described as "fix and improve everything in the
    generic IRQ layer that we could think of", and thus it consists of many
    smaller features and lots of cleanups, the one feature that stands out most is
    the new 'irq chip' abstraction.

    The irq-chip abstraction is about describing and coding and IRQ controller
    driver by mapping its raw hardware capabilities [and quirks, if needed] in a
    straightforward way, without having to think about "IRQ flow"
    (level/edge/etc.) type of details.

    This stands in contrast with the current 'irq-type' model of genirq
    architectures, which 'mixes' raw hardware capabilities with 'flow' details.
    The patchset supports both types of irq controller designs at once, and
    converts i386 and x86_64 to the new irq-chip design.

    As a bonus side-effect of the irq-chip approach, chained interrupt controllers
    (master/slave PIC constructs, etc.) are now supported by design as well.

    The end result of this patchset intends to be simpler architecture-level code
    and more consolidation between architectures.

    We reused many bits of code and many concepts from Russell King's ARM IRQ
    layer, the merging of which was one of the motivations for this patchset.

    This patch:

    rename desc->handler to desc->chip.

    Originally i did not want to do this, because it's a big patch. But having
    both "desc->handler", "desc->handle_irq" and "action->handler" caused a
    large degree of confusion and made the code appear alot less clean than it
    truly is.

    I have also attempted a dual approach as well by introducing a
    desc->chip alias - but that just wasnt robust enough and broke
    frequently.

    So lets get over with this quickly. The conversion was done automatically
    via scripts and converts all the code in the kernel.

    This renaming patch is the first one amongst the patches, so that the
    remaining patches can stay flexible and can be merged and split up
    without having some big monolithic patch act as a merge barrier.

    [akpm@osdl.org: build fix]
    [akpm@osdl.org: another build fix]
    Signed-off-by: Ingo Molnar
    Signed-off-by: Thomas Gleixner
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Ingo Molnar
     

31 Mar, 2006

1 commit

23 Jan, 2006

1 commit

  • cb6fc18e9   [PARISC] Use kzalloc and other janitor-style cleanups ... Browse Code »

    Helge,
    o Convert a bunch of kmalloc/memset uses to kzalloc.
    o pci.c: Add some __read_mostly annotations.
    o pci.c: Move constant pci_post_reset_delay to asm/pci.h
    o grfioctl.h: Add A4450A to comment of CRT_ID_VISUALIZE_EG.
    o Add some consts to perf.c/perf_images.h

    Matthew,
    o sticore.c: Add some consts to suppress compile warnings.

    Signed-off-by: Helge Deller
    Signed-off-by: Matthew Wilcox
    Signed-off-by: Kyle McMartin

    Helge Deller
     

11 Jan, 2006

3 commits

22 Oct, 2005

3 commits

28 Jun, 2005

1 commit

  • c431ada45   [PATCH] acpi bridge hotadd: ACPI based root bridge hot-add ... Browse Code »

    When you hot-plug a (root) bridge hierarchy, it may have p2p bridges and
    devices attached to it that have not been configured by firmware. In this
    case, we need to configure the devices before starting them. This patch
    separates device start from device scan so that we can introduce the
    configuration step in the middle.

    I kept the existing semantics for pci_scan_bus() since there are a huge number
    of callers to that function.

    Also, I have no way of testing the changes I made to the parisc files, so this
    needs review by those folks. Sorry for the massive cross-post, this touches
    files in many different places.

    Signed-off-by: Rajesh Shah
    Signed-off-by: Andrew Morton
    Signed-off-by: Greg Kroah-Hartman

    Rajesh Shah
     

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds