Eric Lee / smarc-fsl-linux-kernel

11 Oct, 2007

4 commits

13 Jul, 2007

1 commit

  • 21ba0f88a   Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6 ... Browse Code »

    * master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (34 commits)
    PCI: Only build PCI syscalls on architectures that want them
    PCI: limit pci_get_bus_and_slot to domain 0
    PCI: hotplug: acpiphp: avoid acpiphp "cannot get bridge info" PCI hotplug failure
    PCI: hotplug: acpiphp: remove hot plug parameter write to PCI host bridge
    PCI: hotplug: acpiphp: fix slot poweroff problem on systems without _PS3
    PCI: hotplug: pciehp: wait for 1 second after power off slot
    PCI: pci_set_power_state(): check for PM capabilities earlier
    PCI: cpci_hotplug: Convert to use the kthread API
    PCI: add pci_try_set_mwi
    PCI: pcie: remove SPIN_LOCK_UNLOCKED
    PCI: ROUND_UP macro cleanup in drivers/pci
    PCI: remove pci_dac_dma_... APIs
    PCI: pci-x-pci-express-read-control-interfaces cleanups
    PCI: Fix typo in include/linux/pci.h
    PCI: pci_ids, remove double or more empty lines
    PCI: pci_ids, add atheros and 3com_2 vendors
    PCI: pci_ids, reorder some entries
    PCI: i386: traps, change VENDOR to DEVICE
    PCI: ATM: lanai, change VENDOR to DEVICE
    PCI: Change all drivers to use pci_device->revision
    ...

    Linus Torvalds
     

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

26 Apr, 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
     

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

20 Aug, 2006

1 commit

06 Jul, 2006

1 commit

  • 03a8c6611   [netdrvr] Remove Linux-specific changelogs from several Becker template drivers ... Browse Code »

    When in-kernel net drivers branched from Donald Becker's vanilla driver
    set, in the days before BitKeeper and git, a driver changelog was
    maintained in the driver source code. These days, the kernel's
    changelog is far superior and much more accurate, so the in-driver
    changelogs are removed.

    Another relic of the Becker/kernel split was version numbering, using
    "foo-LKx.y.z" notation, resulting in weird version numbers like
    "1.17b-LK1.1.9". These drivers are for older hardware, and see few
    changes these days, so the version numbers were all bumped to something
    more simple.

    Finally, in xircom_tulip_cb specifically, an additional cleanup removes
    the always-enabled CARDBUS cpp macro.

    Signed-off-by: Jeff Garzik

    Jeff Garzik
     

03 Jul, 2006

1 commit

01 Jul, 2006

1 commit

16 May, 2006

1 commit

  • c4694c76c   [PATCH] dl2k needs dma-mapping.h ... Browse Code »

    On alpha:

    drivers/net/dl2k.c: In function `rio_free_tx':
    drivers/net/dl2k.c:768: error: `DMA_48BIT_MASK' undeclared (first use in this function)
    drivers/net/dl2k.c:768: error: (Each undeclared identifier is reported only once
    drivers/net/dl2k.c:768: error: for each function it appears in.)
    drivers/net/dl2k.c: In function `receive_packet':
    drivers/net/dl2k.c:896: error: `DMA_48BIT_MASK' undeclared (first use in this function)
    drivers/net/dl2k.c: In function `rio_close':
    drivers/net/dl2k.c:1803: error: `DMA_48BIT_MASK' undeclared (first use in this function)

    Cc: Jeff Garzik
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andrew Morton
     

11 May, 2006

1 commit

12 Mar, 2006

2 commits

04 Mar, 2006

1 commit

29 Jun, 2005

1 commit

  • 689be4394   [NET]: Remove gratuitous use of skb->tail in network drivers. ... Browse Code »

    Many drivers use skb->tail unnecessarily.

    In these situations, the code roughly looks like:

    dev = dev_alloc_skb(...);

    [optional] skb_reserve(skb, ...);

    ... skb->tail ...

    But even if the skb_reserve() happens, skb->data equals
    skb->tail. So it doesn't make any sense to use anything
    other than skb->data in these cases.

    Another case was the s2io.c driver directly mucking with
    the skb->data and skb->tail pointers. It really just wanted
    to do an skb_reserve(), so that's what the code was changed
    to do instead.

    Another reason I'm making this change as it allows some SKB
    cleanups I have planned simpler to merge. In those cleanups,
    skb->head, skb->tail, and skb->end pointers are removed, and
    replaced with skb->head_room and skb->tail_room integers.

    Signed-off-by: David S. Miller
    Acked-by: Jeff Garzik

    David S. Miller
     

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