litmus-rt.git/arch/mips/pci, branch linux-tip

MIPS: Octeon: Rewrite DMA mapping functions.

2010-10-29T18:08:32+00:00

All Octeon chips can support more than 4GB of RAM.  Also due to how Octeon
PCI is setup, even some configurations with less than 4GB of RAM will have
portions that are not accessible from 32-bit devices.

Enable the swiotlb code to handle the cases where a device cannot directly
do DMA.  This is a complete rewrite of the Octeon DMA mapping code.

Signed-off-by: David Daney 
Patchwork: http://patchwork.linux-mips.org/patch/1639/
Signed-off-by: Ralf Baechle

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2010-10-24T20:41:39+00:00

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
  Update broken web addresses in arch directory.
  Update broken web addresses in the kernel.
  Revert "drivers/usb: Remove unnecessary return's from void functions" for musb gadget
  Revert "Fix typo: configuation => configuration" partially
  ida: document IDA_BITMAP_LONGS calculation
  ext2: fix a typo on comment in ext2/inode.c
  drivers/scsi: Remove unnecessary casts of private_data
  drivers/s390: Remove unnecessary casts of private_data
  net/sunrpc/rpc_pipe.c: Remove unnecessary casts of private_data
  drivers/infiniband: Remove unnecessary casts of private_data
  drivers/gpu/drm: Remove unnecessary casts of private_data
  kernel/pm_qos_params.c: Remove unnecessary casts of private_data
  fs/ecryptfs: Remove unnecessary casts of private_data
  fs/seq_file.c: Remove unnecessary casts of private_data
  arm: uengine.c: remove C99 comments
  arm: scoop.c: remove C99 comments
  Fix typo configue => configure in comments
  Fix typo: configuation => configuration
  Fix typo interrest[ing|ed] => interest[ing|ed]
  Fix various typos of valid in comments
  ...

Fix up trivial conflicts in:
	drivers/char/ipmi/ipmi_si_intf.c
	drivers/usb/gadget/rndis.c
	net/irda/irnet/irnet_ppp.c

MIPS: Add missing #inclusions of

2010-10-07T13:08:54+00:00

Add missing #inclusions of  to a whole bunch of files that should
really include it.  Note that this can replace #inclusions of .

This is required for the patch to sort out irqflags handling function naming to
compile on MIPS.

The problem is that these files require access to things like setup_irq() -
which isn't available by #including 

Signed-off-by: David Howells 
Acked-by: Ralf Baechle

MIPS: Remove pr_ uses of KERN_

2010-10-04T17:33:57+00:00

These would result in KERN_ actually getting printed.

Signed-off-by: Joe Perches 
To: Jiri Kosina 
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1581/
Signed-off-by: Ralf Baechle

Fix typo configue => configure in comments

2010-09-23T09:46:50+00:00

Signed-off-by: Thomas Weber 
Acked-by: David S. Miller 
Signed-off-by: Jiri Kosina

MIPS: Octeon: Allow more than 3.75GB of memory with PCIe

2010-08-05T12:26:31+00:00

We reserve the 3.75GB - 4GB region of PCIe address space for device to
device transfers, making the corresponding physical memory under
direct mapping unavailable for DMA.

To allow for PCIe DMA to all physical memory we map this chunk of
physical memory with BAR1.  Because of the resulting discontinuity in
the mapping function, we remove a page of memory at each end of the
range so multi-page DMA buffers can never be allocated that span the
range.

Signed-off-by: David Daney 
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1535/
Signed-off-by: Ralf Baechle

MIPS: Octeon: Disallow MSI-X interrupt and fall back to MSI interrupts.

2010-08-05T12:26:27+00:00

MSI-X interrupts are not supported yet for Octeon, return error if
MSI-X interrupts are requested by driver so that the driver will fall
back to use MSI interrupts.

Signed-off-by: Chandrakala Chavva 
To: linux-mips@linux-mips.org
Cc: David Daney 
Patchwork: https://patchwork.linux-mips.org/patch/1506/
Signed-off-by: Ralf Baechle 
Signed-off-by: David Daney

MIPS: Octeon: Support 256 MSI on PCIe

2010-08-05T12:26:27+00:00

Signed-off-by: David Daney 
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1507/
Signed-off-by: Ralf Baechle

MIPS: Octeon: Make MSI use handle_simple_irq().

2010-08-05T12:26:11+00:00

The use of handle_percpu_irq() is not really what we want for MSI, use
handle_simple_irq() instead.  This is probably the prototypical case
for using handle_simple_irq(), because all the MSIs are dispatched from
the root interrupt service routine.

Also since the base IRQ is not shared, don't pass IRQF_SHARED.

Signed-off-by: David Daney 
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1488/
Signed-off-by: Ralf Baechle

MIPS: Octeon: Get rid of a bunch of MSI IRQ number definitions.

2010-08-05T12:26:11+00:00

MSI IRQ numbers are allocated dynamically, so there is no reason to
have all these static definitions.

Signed-off-by: David Daney 
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1487/
Signed-off-by: Ralf Baechle