1. 09 2月, 2008 2 次提交
  2. 28 1月, 2008 1 次提交
    • R
      [NET] smc91x: Make smc91x use IRQ resource trigger flags · e7b3dc7e
      Russell King 提交于
      smc91x is shared between many different platforms.  Each platform needs
      to specify the interrupt type, and in some cases the irq type depends
      on more than just the build configuration - it depends on runtime
      checks.
      
      Rather than throwing this code into the SMC_IRQ_FLAGS definition, provide
      a way for these flags to be passed via the IRQ resource itself.
      
      Note that IRQF_TRIGGER_* constants are intentionally defined to correspond
      with the IORESOURCE_IRQ_* interrupt type flags, in much the same way that
      the low bits of PCI iomem resources correspond with the BAR flag bits.
      
      Also provide a way to configure smc91x to read the IRQ flags from the
      resource.  Once all platforms have been converted over (signified
      by all definitions of SMC_IRQ_FLAGS being -1) SMC_IRQ_FLAGS should
      be removed.
      Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
      Acked-by: NNicolas Pitre <nico@cam.org>
      Acked-by: NJeff Garzik <jgarzik@redhat.com>
      e7b3dc7e
  3. 21 9月, 2007 1 次提交
  4. 03 4月, 2006 1 次提交
  5. 28 3月, 2006 1 次提交
    • A
      [PATCH] Notifier chain update: API changes · e041c683
      Alan Stern 提交于
      The kernel's implementation of notifier chains is unsafe.  There is no
      protection against entries being added to or removed from a chain while the
      chain is in use.  The issues were discussed in this thread:
      
          http://marc.theaimsgroup.com/?l=linux-kernel&m=113018709002036&w=2
      
      We noticed that notifier chains in the kernel fall into two basic usage
      classes:
      
      	"Blocking" chains are always called from a process context
      	and the callout routines are allowed to sleep;
      
      	"Atomic" chains can be called from an atomic context and
      	the callout routines are not allowed to sleep.
      
      We decided to codify this distinction and make it part of the API.  Therefore
      this set of patches introduces three new, parallel APIs: one for blocking
      notifiers, one for atomic notifiers, and one for "raw" notifiers (which is
      really just the old API under a new name).  New kinds of data structures are
      used for the heads of the chains, and new routines are defined for
      registration, unregistration, and calling a chain.  The three APIs are
      explained in include/linux/notifier.h and their implementation is in
      kernel/sys.c.
      
      With atomic and blocking chains, the implementation guarantees that the chain
      links will not be corrupted and that chain callers will not get messed up by
      entries being added or removed.  For raw chains the implementation provides no
      guarantees at all; users of this API must provide their own protections.  (The
      idea was that situations may come up where the assumptions of the atomic and
      blocking APIs are not appropriate, so it should be possible for users to
      handle these things in their own way.)
      
      There are some limitations, which should not be too hard to live with.  For
      atomic/blocking chains, registration and unregistration must always be done in
      a process context since the chain is protected by a mutex/rwsem.  Also, a
      callout routine for a non-raw chain must not try to register or unregister
      entries on its own chain.  (This did happen in a couple of places and the code
      had to be changed to avoid it.)
      
      Since atomic chains may be called from within an NMI handler, they cannot use
      spinlocks for synchronization.  Instead we use RCU.  The overhead falls almost
      entirely in the unregister routine, which is okay since unregistration is much
      less frequent that calling a chain.
      
      Here is the list of chains that we adjusted and their classifications.  None
      of them use the raw API, so for the moment it is only a placeholder.
      
        ATOMIC CHAINS
        -------------
      arch/i386/kernel/traps.c:		i386die_chain
      arch/ia64/kernel/traps.c:		ia64die_chain
      arch/powerpc/kernel/traps.c:		powerpc_die_chain
      arch/sparc64/kernel/traps.c:		sparc64die_chain
      arch/x86_64/kernel/traps.c:		die_chain
      drivers/char/ipmi/ipmi_si_intf.c:	xaction_notifier_list
      kernel/panic.c:				panic_notifier_list
      kernel/profile.c:			task_free_notifier
      net/bluetooth/hci_core.c:		hci_notifier
      net/ipv4/netfilter/ip_conntrack_core.c:	ip_conntrack_chain
      net/ipv4/netfilter/ip_conntrack_core.c:	ip_conntrack_expect_chain
      net/ipv6/addrconf.c:			inet6addr_chain
      net/netfilter/nf_conntrack_core.c:	nf_conntrack_chain
      net/netfilter/nf_conntrack_core.c:	nf_conntrack_expect_chain
      net/netlink/af_netlink.c:		netlink_chain
      
        BLOCKING CHAINS
        ---------------
      arch/powerpc/platforms/pseries/reconfig.c:	pSeries_reconfig_chain
      arch/s390/kernel/process.c:		idle_chain
      arch/x86_64/kernel/process.c		idle_notifier
      drivers/base/memory.c:			memory_chain
      drivers/cpufreq/cpufreq.c		cpufreq_policy_notifier_list
      drivers/cpufreq/cpufreq.c		cpufreq_transition_notifier_list
      drivers/macintosh/adb.c:		adb_client_list
      drivers/macintosh/via-pmu.c		sleep_notifier_list
      drivers/macintosh/via-pmu68k.c		sleep_notifier_list
      drivers/macintosh/windfarm_core.c	wf_client_list
      drivers/usb/core/notify.c		usb_notifier_list
      drivers/video/fbmem.c			fb_notifier_list
      kernel/cpu.c				cpu_chain
      kernel/module.c				module_notify_list
      kernel/profile.c			munmap_notifier
      kernel/profile.c			task_exit_notifier
      kernel/sys.c				reboot_notifier_list
      net/core/dev.c				netdev_chain
      net/decnet/dn_dev.c:			dnaddr_chain
      net/ipv4/devinet.c:			inetaddr_chain
      
      It's possible that some of these classifications are wrong.  If they are,
      please let us know or submit a patch to fix them.  Note that any chain that
      gets called very frequently should be atomic, because the rwsem read-locking
      used for blocking chains is very likely to incur cache misses on SMP systems.
      (However, if the chain's callout routines may sleep then the chain cannot be
      atomic.)
      
      The patch set was written by Alan Stern and Chandra Seetharaman, incorporating
      material written by Keith Owens and suggestions from Paul McKenney and Andrew
      Morton.
      
      [jes@sgi.com: restructure the notifier chain initialization macros]
      Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
      Signed-off-by: NChandra Seetharaman <sekharan@us.ibm.com>
      Signed-off-by: NJes Sorensen <jes@sgi.com>
      Signed-off-by: NAndrew Morton <akpm@osdl.org>
      Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      e041c683
  6. 09 2月, 2006 1 次提交
  7. 14 1月, 2006 1 次提交
  8. 10 11月, 2005 1 次提交
    • T
      [ARM] 3141/1: OMAP 1/5: Update omap1 specific files · 3179a019
      Tony Lindgren 提交于
      Patch from Tony Lindgren
      
      This patch syncs the mainline kernel with linux-omap tree.
      The highlights of the patch are:
      
      - Omap1 serial pport and framebuffer init updates by Imre Deak
      
      - Add support for omap310 processor and Palm Tungsten E PDA
        by Laurent Gonzales, Romain Goyet, et al. Omap310 and
        omap1510 processors are now handled as omap15xx.
      
      - Omap1 specific changes to shared omap clock framework
        by Tony Lindgren
      
      - Omap1 specific changes to shared omap pin mux framework
        by Tony Lindgren
      
      - Other misc fixes, such as update memory timings for smc91x,
        omap1 specific device initialization etc.
      Signed-off-by: NTony Lindgren <tony@atomide.com>
      Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
      3179a019
  9. 30 10月, 2005 1 次提交
  10. 09 9月, 2005 1 次提交
    • T
      [ARM] 2890/1: OMAP 1/4: Update omap1 specific files, take 2 · 7c38cf02
      Tony Lindgren 提交于
      Patch from Tony Lindgren
      
      This patch syncs the mainline kernel with linux-omap tree.
      The highlights of the patch are:
      - Convert more drivers to register resources in board-*.c to take
        advantage of the driver model by David Brownell and Ladislav Michl
      - Use set_irq_type() for GPIO interrupts instead of
        omap_set_gpio_edge_ctrl() by David Brownell
      - Add minimal support for handling optional add-on boards, such as
        OSK Mistral board with LCD and keypad, by David Brownell
      - Minimal support for loading functions to SRAM by Tony Lindgren
      - Wake up from serial port by muxing RX lines temporarily into GPIO
        interrupts by Tony Lindgren
      - 32KHz sched_clock by Tony Lindgren and Juha Yrjola
      Signed-off-by: NTony Lindgren <tony@atomide.com>
      Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
      7c38cf02
  11. 08 9月, 2005 1 次提交
  12. 11 7月, 2005 2 次提交
  13. 04 7月, 2005 1 次提交
  14. 17 4月, 2005 1 次提交
    • L
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds 提交于
      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!
      1da177e4