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  1. 06 7月, 2005 1 次提交
  3. 05 7月, 2005 5 次提交
    • D
      [SPARC64]: Fix IRQ retry interval timer value on sparc64 PCI controllers. · 864ae180
      由 David S. Miller 提交于 
      Use '5' instead of 'infinity'.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      864ae180
    • D
      [SPARC64]: Small Schizo PCI controller programming tweaks. · 9fba62a5
      由 David S. Miller 提交于 
      Use macro instead of magic value for Tomatillo discard-
timeout interrupt enable register bit.

Leave OBP programming PTO value unless Tomatillo and
version >= 0x2.

If no-bus-parking property is present, explicitly clear
PCICTRL_PARK bit.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      9fba62a5
    • D
      [SPARC64]: Do proper DMA IRQ syncing on Tomatillo · bb6743f4
      由 David S. Miller 提交于 
      This was the main impetus behind adding the PCI IRQ shim.

In order to properly order DMA writes wrt. interrupts, you have to
write to a PCI controller register, then poll for that bit clearing.
There is one bit for each interrupt source, and setting this register
bit tells Tomatillo to drain all pending DMA from that device.

Furthermore, Tomatillo's with revision less than 4 require us to do a
block store due to some memory transaction ordering issues it has on
JBUS.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      bb6743f4
    • D
      [SPARC64]: Add support for IRQ pre-handlers. · 088dd1f8
      由 David S. Miller 提交于 
      This allows a PCI controller to shim into IRQ delivery
so that DMA queues can be drained, if necessary.

If some bus specific code needs to run before an IRQ
handler is invoked, the bus driver simply needs to setup
the function pointer in bucket->irq_info->pre_handler and
the two args bucket->irq_info->pre_handler_arg[12].

The Schizo PCI driver is converted over to use a pre-handler
for the DMA write-sync processing it needs when a device
is behind a PCI->PCI bus deeper than the top-level APB
bridges.

While we're here, clean up all of the action allocation
and handling.  Now, we allocate the irqaction as part of
the bucket->irq_info area.  There is an array of 4 irqaction
(for PCI irq sharing) and a bitmask saying which entries
are active.

The bucket->irq_info is allocated at build_irq() time, not
at request_irq() time.  This simplifies request_irq() and
free_irq() tremendously.

The SMP dynamic IRQ retargetting code got removed in this
change too.  It was disabled for a few months now, and we
can resurrect it in the future if we want.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      088dd1f8
    • R
      [SPARC64/COMPAT]: Add some compat ioctl for ppdev · e7270dec
      由 Raphael Assenat 提交于 
      The following patch adds some ioctls to include/linux/compat_ioctl.h
to allow using ppdev from the 32 bit user space on sparc64.

This patch also adds the PPDEV option in the sparc64 menu, near Parallel
printer support in the 'General machine setup' submenu.

All those ioctls seem to be compatible, since (correct me if I'm wrong)
they dont use the 'long' type. See include/linux/ppdev.h.

The application I used to test the new ioctls only used the following:
PPEXCL
PPCLAIM
PPNEGOT
PPGETMODES
PPRCONTROL
PPWCONTROL
PPDATADIR
PPWDATA
PPRDATA

But I beleive that the other ioctls will work fine.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      e7270dec
  5. 04 7月, 2005 4 次提交
  7. 02 7月, 2005 2 次提交
    • G
      [PATCH] PCI: clean up dynamic pci id logic · 75865858
      由 Greg Kroah-Hartman 提交于 
      The dynamic pci id logic has been bothering me for a while, and now that
I started to look into how to move some of this to the driver core, I
thought it was time to clean it all up.

It ends up making the code smaller, and easier to follow, and fixes a
few bugs at the same time (dynamic ids were not being matched
everywhere, and so could be missed on some call paths for new devices,
semaphore not needed to be grabbed when adding a new id and calling the
driver core, etc.)

I also renamed the function pci_match_device() to pci_match_id() as
that's what it really does.
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      75865858
    • I
      [PATCH] PCI: pci_assign_unassigned_resources() on x86 · 299de034
      由 Ivan Kokshaysky 提交于 
      - Add sanity check for io[port,mem]_resource in setup-bus.c. These
  resources look like "free" as they have no parents, but obviously
  we must not touch them.
- In i386.c:pci_allocate_bus_resources(), if a bridge resource cannot be
  allocated for some reason, then clear its flags. This prevents any child
  allocations in this range, so the setup-bus code will work with a clean
  resource sub-tree.
- i386.c:pcibios_enable_resources() doesn't enable bridges, as it checks
  only resources 0-5, which looks like a clear bug to me. I suspect it
  might break hotplug as well in some cases.

From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      299de034
  9. 01 7月, 2005 9 次提交
  11. 30 6月, 2005 19 次提交