Eric Lee / smarc-fsl-linux-kernel

11 Jul, 2007

1 commit

08 May, 2007

1 commit

28 Apr, 2007

3 commits

  • c28896a42   tc35815: Zap changelog from source code ... Browse Code »

    Signed-off-by: Atsushi Nemoto
    Signed-off-by: Jeff Garzik

    Atsushi Nemoto
     
  • 793bc0afb   tc35815: Fix an usage of streaming DMA API. ... Browse Code »

    The tc35815 driver lacks a call to pci_dma_sync_single_for_device() on
    receiving. Recent fix of MIPS dma_sync_single_for_cpu() reveal this
    bug.

    Signed-off-by: Atsushi Nemoto
    Signed-off-by: Jeff Garzik

    Atsushi Nemoto
     
  • eea221ce4   tc35815 driver update (take 2) ... Browse Code »

    Current tc35815 driver is very obsolete and less maintained for a long
    time. Replace it with a new driver based on one from CELF patch
    archive.

    Major advantages of CELF version (version 1.23, for kernel 2.6.10) are:

    * Independent of JMR3927.
    (Actually independent of MIPS, but AFAIK the chip is used only on
    MIPS platforms)
    * TX4938 support.
    * 64-bit proof.
    * Asynchronous and on-demand auto negotiation.
    * High performance on non-coherent architecture.
    * ethtool support.
    * Many bugfixes and cleanups.

    And improvoments since version 1.23 are:

    * TX4939 support.
    * NETPOLL support.
    * NAPI support. (disabled by default)
    * Reduce memcpy on receiving.
    * PM support.
    * Many cleanups and bugfixes.

    Signed-off-by: Atsushi Nemoto
    Signed-off-by: Jeff Garzik

    Atsushi Nemoto
     

26 Apr, 2007

1 commit

03 Mar, 2007

1 commit

  • c8d64f8a0   jmr3927: do not call tc35815_killall(). ... Browse Code »

    No need to stop tc35815 before resetting the board. This fixes the
    build of tc35815 as a module. This also means there is no caller of
    tc35815_killall left, so remove that function also.

    Signed-off-by: Ralf Baechle
    Signed-off-by: Jeff Garzik

    Ralf Baechle
     

27 Feb, 2007

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
     

14 Sep, 2006

1 commit

20 Aug, 2006

1 commit

03 Jul, 2006

1 commit

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