Eric Lee / smarc-fsl-linux-kernel

11 Oct, 2007

2 commits

12 Jul, 2007

1 commit

  • 44c10138f   PCI: Change all drivers to use pci_device->revision ... Browse Code »
    88

    Instead of all drivers reading pci config space to get the revision
    ID, they can now use the pci_device->revision member.

    This exposes some issues where drivers where reading a word or a dword
    for the revision number, and adding useless error-handling around the
    read. Some drivers even just read it for no purpose of all.

    In devices where the revision ID is being copied over and used in what
    appears to be the equivalent of hotpath, I have left the copy code
    and the cached copy as not to influence the driver's performance.

    Compile tested with make all{yes,mod}config on x86_64 and i386.

    Signed-off-by: Auke Kok
    Acked-by: Dave Jones
    Signed-off-by: Greg Kroah-Hartman

    Auke Kok
     

11 Jul, 2007

1 commit

  • cd6f5b805   sunhme.c:quattro_pci_find() must be __devinit ... Browse Code »

    This patch fixes the following section mismatch:

    ...
    MODPOST vmlinux
    WARNING: drivers/built-in.o(.text+0x272f8b): Section mismatch: reference to .init.text:quattro_pci_find (between 'happy_meal_pci_probe' and 'happy_meal_pci_remove')
    ...

    Signed-off-by: Adrian Bunk
    Signed-off-by: Jeff Garzik

    Adrian Bunk
     

28 Apr, 2007

1 commit

  • 0278ef8b4   Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 ... Browse Code »

    * master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: (67 commits)
    [SCSI] SUNESP: Complete driver rewrite to version 2.0
    [SPARC64]: Convert PCI over to generic struct iommu/strbuf.
    [SPARC]: device_node name constification fallout
    [SPARC64]: Convert SBUS over to generic iommu/strbuf structs.
    [SPARC64]: Add generic iommu and strbuf structs to iommu.h
    [SPARC64]: Consolidate {sbus,pci}_iommu_arena.
    [SPARC]: Make device_node name and type const
    [SPARC64]: constify some paramaters of OF routines
    [TIGON3]: of_get_property() returns const.
    [SPARC64]: Fix PCI rework to adhere to of_get_property() const return.
    [SPARC64]: Document and fix calculation of pages_avail.
    [SPARC64]: Make sure pbm->prom_node is setup easly enough in psycho.c
    [SPARC64]: Use bootmem_bootmap_pages() in choose_bootmap_pfn().
    [SPARC64]: Add proper header file extern for cmdline_memory_size.
    [SPARC64]: Kill sparc_ultra_dump_{i,d}tlb()
    [SPARC64]: Use DECLARE_BITMAP and BITS_TO_LONGS in mm/init.c
    [SPARC64]: Give move verbose show_mem() output just like i386.
    [SPARC64]: Mark show_mem() printk's with KERN_INFO.
    [SPARC64]: Kill kvaddr_to_phys() and friends.
    [SPARC64]: Privatize sun4u_get_pte() and fix name.
    ...

    Linus Torvalds
     

26 Apr, 2007

5 commits

22 Apr, 2007

1 commit

05 Dec, 2006

1 commit

04 Dec, 2006

2 commits

03 Dec, 2006

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
     

25 Sep, 2006

1 commit

  • a319a2773   Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 ... Browse Code »

    * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (217 commits)
    net/ieee80211: fix more crypto-related build breakage
    [PATCH] Spidernet: add ethtool -S (show statistics)
    [NET] GT96100: Delete bitrotting ethernet driver
    [PATCH] mv643xx_eth: restrict to 32-bit PPC_MULTIPLATFORM
    [PATCH] Cirrus Logic ep93xx ethernet driver
    r8169: the MMIO region of the 8167 stands behin BAR#1
    e1000, ixgb: Remove pointless wrappers
    [PATCH] Remove powerpc specific parts of 3c509 driver
    [PATCH] s2io: Switch to pci_get_device
    [PATCH] gt96100: move to pci_get_device API
    [PATCH] ehea: bugfix for register access functions
    [PATCH] e1000 disable device on PCI error
    drivers/net/phy/fixed: #if 0 some incomplete code
    drivers/net: const-ify ethtool_ops declarations
    [PATCH] ethtool: allow const ethtool_ops
    [PATCH] sky2: big endian
    [PATCH] sky2: fiber support
    [PATCH] sky2: tx pause bug fix
    drivers/net: Trim trailing whitespace
    [PATCH] ehea: IBM eHEA Ethernet Device Driver
    ...

    Manually resolved conflicts in drivers/net/ixgb/ixgb_main.c and
    drivers/net/sky2.c related to CHECKSUM_HW/CHECKSUM_PARTIAL changes by
    commit 84fa7933a33f806bbbaae6775e87459b1ec584c0 that just happened to be
    next to unrelated changes in this update.

    Linus Torvalds
     

23 Sep, 2006

1 commit

14 Sep, 2006

2 commits

22 Jul, 2006

1 commit

03 Jul, 2006

1 commit

01 Jul, 2006

1 commit

30 Jun, 2006

1 commit

24 Jun, 2006

5 commits

20 Jun, 2006

1 commit

  • c6387a48c   [SPARC]: Kill __irq_itoa(). ... Browse Code »

    This ugly hack was long overdue to die.

    It was a way to print out Sparc interrupts in a more freindly format,
    since IRQ numbers were arbitrary opaque 32-bit integers which vectored
    into PIL levels. These 32-bit integers were not necessarily in the
    0-->NR_IRQS range, but the PILs they vectored to were.

    The idea now is that we will increase NR_IRQS a little bit and use a
    virtualreal IRQ number mapping scheme similar to PowerPC.

    That makes this IRQ printing hack irrelevant, and furthermore only a
    handful of drivers actually used __irq_itoa() making it even less
    useful.

    Signed-off-by: David S. Miller

    David S. Miller
     

12 Sep, 2005

1 commit

  • ce1289ade   [PATCH] Sun HME: enable and map PCI ROM properly ... Browse Code »

    This ports the Sun GEM ROM mapping/enable fixes it sunhme (which used
    the same PCI ROM mapping code).

    Without this, I get NULL MAC addresses for all 4 ports (it's a SUN QFE).
    With it, I get the correct addresses (the ones printed on the label on
    the card).

    Signed-off-by: Linus Torvalds

    Willy Tarreau
     

25 Apr, 2005

1 commit

  • 10158286e   [SPARC]: module version cleanups ... Browse Code »

    Minor cleanups for sparc specific drivers (sunbmac, sunqe, sunlance,
    sunhme, esp) so that they have a full module version definition that is
    consistent with other upstream drivers.

    Signed-off-by: Tom 'spot' Callaway
    Signed-off-by: David S. Miller

    Tom 'spot' Callaway
     

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