1. 11 Oct, 2007 1 commit
    • Jeff Garzik's avatar
      [libata] sata_mv: more S/G fixes · 6c08772e
      Jeff Garzik authored
      
      
      * corruption fix: we only want the lower 16 bits of length (0 == 64kb)
      
      * ditto: the upper layer sets max-phys-segments to LIBATA_MAX_PRD,
        so we must reset it to own hw-specific length.
      
      * delete unused mv_fill_sg() return value
      
      Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
      6c08772e
  2. 09 Oct, 2007 1 commit
  3. 03 Oct, 2007 1 commit
  4. 31 Aug, 2007 1 commit
  5. 15 Aug, 2007 1 commit
  6. 20 Jul, 2007 4 commits
  7. 17 Jul, 2007 1 commit
  8. 12 Jul, 2007 3 commits
  9. 11 Jul, 2007 2 commits
  10. 09 Jul, 2007 2 commits
  11. 03 Jul, 2007 1 commit
  12. 24 May, 2007 1 commit
  13. 21 May, 2007 1 commit
  14. 28 Apr, 2007 5 commits
  15. 26 Feb, 2007 3 commits
  16. 24 Feb, 2007 1 commit
  17. 21 Feb, 2007 2 commits
    • Tejun Heo's avatar
      libata: s/ap->id/ap->print_id/g · 44877b4e
      Tejun Heo authored
      
      
      ata_port has two different id fields - id and port_no.  id is
      system-wide 1-based unique id for the port while port_no is 0-based
      host-wide port number.  The former is primarily used to identify the
      ATA port to the user in printk messages while the latter is used in
      various places in libata core and LLDs to index the port inside the
      host.
      
      The two fields feel quite similar and sometimes ap->id is used in
      place of ap->port_no, which is very difficult to spot.  This patch
      renames ap->id to ap->print_id to reduce the possibility of such bugs.
      
      Some printk messages are adjusted such that id string (ata%u[.%u])
      isn't printed twice and/or to use ata_*_printk() instead of hardcoded
      id format.
      
      Signed-off-by: default avatarTejun Heo <htejun@gmail.com>
      Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
      44877b4e
    • Randy Dunlap's avatar
      SATA: use NULL for ptrs · 8d9db2d2
      Randy Dunlap authored
      
      
      Fix sparse warnings in SATA:
      drivers/ata/sata_sil.c:342:9: warning: Using plain integer as NULL pointer
      drivers/ata/sata_mv.c:2056:55: warning: Using plain integer as NULL pointer
      
      Signed-off-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
      Cc: Jeff Garzik <jeff@garzik.org>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
      8d9db2d2
  18. 14 Feb, 2007 1 commit
    • Tim Schmielau's avatar
      [PATCH] remove many unneeded #includes of sched.h · cd354f1a
      Tim Schmielau authored
      
      
      After Al Viro (finally) succeeded in removing the sched.h #include in module.h
      recently, it makes sense again to remove other superfluous sched.h includes.
      There are quite a lot of files which include it but don't actually need
      anything defined in there.  Presumably these includes were once needed for
      macros that used to live in sched.h, but moved to other header files in the
      course of cleaning it up.
      
      To ease the pain, this time I did not fiddle with any header files and only
      removed #includes from .c-files, which tend to cause less trouble.
      
      Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
      arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
      allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
      configs in arch/arm/configs on arm.  I also checked that no new warnings were
      introduced by the patch (actually, some warnings are removed that were emitted
      by unnecessarily included header files).
      
      Signed-off-by: default avatarTim Schmielau <tim@physik3.uni-rostock.de>
      Acked-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      cd354f1a
  19. 09 Feb, 2007 3 commits
    • Akira Iguchi's avatar
      libata: add another IRQ calls (libata drivers) · 246ce3b6
      Akira Iguchi authored
      
      
      This patch is against each libata driver.
      
      Two IRQ calls are added in ata_port_operations.
      - irq_on() is used to enable interrupts.
      - irq_ack() is used to acknowledge a device interrupt.
      
      In most drivers, ata_irq_on() and ata_irq_ack() are used for
      irq_on and irq_ack respectively.
      
      In some drivers (ex: ahci, sata_sil24) which cannot use them
      as is, ata_dummy_irq_on() and ata_dummy_irq_ack() are used.
      
      Signed-off-by: default avatarKou Ishizaki <kou.ishizaki@toshiba.co.jp>
      Signed-off-by: default avatarAkira Iguchi <akira2.iguchi@toshiba.co.jp>
      Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
      246ce3b6
    • Tejun Heo's avatar
      libata: convert to iomap · 0d5ff566
      Tejun Heo authored
      
      
      Convert libata core layer and LLDs to use iomap.
      
      * managed iomap is used.  Pointer to pcim_iomap_table() is cached at
        host->iomap and used through out LLDs.  This basically replaces
        host->mmio_base.
      
      * if possible, pcim_iomap_regions() is used
      
      Most iomap operation conversions are taken from Jeff Garzik
      <jgarzik@pobox.com>'s iomap branch.
      
      Signed-off-by: default avatarTejun Heo <htejun@gmail.com>
      Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
      0d5ff566
    • Tejun Heo's avatar
      libata: update libata LLDs to use devres · 24dc5f33
      Tejun Heo authored
      
      
      Update libata LLDs to use devres.  Core layer is already converted to
      support managed LLDs.  This patch simplifies initialization and fixes
      many resource related bugs in init failure and detach path.  For
      example, all converted drivers now handle ata_device_add() failure
      gracefully without excessive resource rollback code.
      
      As most resources are released automatically on driver detach, many
      drivers don't need or can do with much simpler ->{port|host}_stop().
      In general, stop callbacks are need iff port or host needs to be given
      commands to shut it down.  Note that freezing is enough in many cases
      and ports are automatically frozen before being detached.
      
      Signed-off-by: default avatarTejun Heo <htejun@gmail.com>
      Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
      24dc5f33
  20. 19 Jan, 2007 1 commit
  21. 05 Oct, 2006 1 commit
    • David Howells's avatar
      IRQ: Maintain regs pointer globally rather than passing to IRQ handlers · 7d12e780
      David Howells authored
      
      
      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: default avatarDavid Howells <dhowells@redhat.com>
      (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
      7d12e780
  22. 28 Sep, 2006 1 commit
  23. 27 Sep, 2006 1 commit
  24. 24 Aug, 2006 1 commit
    • Jeff Garzik's avatar
      libata: Grand renaming. · cca3974e
      Jeff Garzik authored
      
      
      The biggest change is that ata_host_set is renamed to ata_host.
      
      * ata_host_set			=> ata_host
      * ata_probe_ent->host_flags	=> ata_probe_ent->port_flags
      * ata_probe_ent->host_set_flags	=> ata_probe_ent->_host_flags
      * ata_host_stats		=> ata_port_stats
      * ata_port->host		=> ata_port->scsi_host
      * ata_port->host_set		=> ata_port->host
      * ata_port_info->host_flags	=> ata_port_info->flags
      * ata_(.*)host_set(.*)\(\)	=> ata_\1host\2()
      
      The leading underscore in ata_probe_ent->_host_flags is to avoid
      reusing ->host_flags for different purpose.  Currently, the only user
      of the field is libata-bmdma.c and probe_ent itself is scheduled to be
      removed.
      
      ata_port->host is reused for different purpose but this field is used
      inside libata core proper and of different type.
      
      Signed-off-by: default avatarTejun Heo <htejun@gmail.com>
      Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
      cca3974e