linux-toradex.git/arch/sparc/kernel/pci_impl.h, branch v4.10

sparc/PCI: Add mem64 resource parsing for root bus

2015-10-29T22:35:46+00:00

David reported that a T5-8 sparc system failed to boot with:

  pci_sun4v f02dbcfc: PCI host bridge to bus 0000:00
  pci_bus 0000:00: root bus resource [io  0x804000000000-0x80400fffffff] (bus address [0x0000-0xfffffff])
  pci_bus 0000:00: root bus resource [mem 0x800000000000-0x80007effffff] (bus address [0x00000000-0x7effffff])
  pci 0000:00:01.0: can't claim BAR 15 [mem 0x100000000-0x4afffffff pref]: no compatible bridge window

Note that we don't know about a host bridge aperture that contains
BAR 15.  OF does report a MEM64 aperture, but before this patch,
pci_determine_mem_io_space() ignored it.

Add support for host bridge apertures with 64-bit PCI addresses.  Also
set IORESOURCE_MEM_64 for PCI device and bridge resources in PCI 64-bit
memory space.

Sparc doesn't actually print the device and bridge resources, but after
this patch, we should have the equivalent of this:

  pci_sun4v f02dbcfc: PCI host bridge to bus 0000:00
  pci_bus 0000:00: root bus resource [io  0x804000000000-0x80400fffffff] (bus address [0x0000-0xfffffff])
  pci_bus 0000:00: root bus resource [mem 0x800000000000-0x80007effffff] (bus address [0x00000000-0x7effffff])
  pci_bus 0000:00: root bus resource [mem 0x800100000000-0x8007ffffffff] (bus address [0x100000000-0x7ffffffff])
  pci 0000:00:01.0:   bridge window [mem 0x800100000000-0x8004afffffff 64bit pref]

[bhelgaas: changelog, URL to David's report]
Fixes: d63e2e1f3df9 ("sparc/PCI: Clip bridge windows to fit in upstream windows")
Link: http://lkml.kernel.org/r/5514391F.2030300@oracle.com
Reported-by: David Ahern 
Tested-by: David Ahern 
Tested-by: Khalid Aziz 
Signed-off-by: Yinghai Lu 
Signed-off-by: Bjorn Helgaas

sparc: drop use of extern for prototypes in arch/sparc/*

2014-05-19T02:01:29+00:00

Drop the remaining uses of extern for prototypes in .h files
in the sparc specific part of the kernel tree.

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller

drivers/of: Constify device_node->name and ->path_component_name

2012-11-17T12:05:57+00:00

Neither of these should ever be changed once set. Make them const and
fix up the users that try to modify it in-place. In one case
kmalloc+memcpy is replaced with kstrdup() to avoid modifying the string.

Build tested with defconfigs on ARM, PowerPC, Sparc, MIPS, x86 among
others.

Signed-off-by: Grant Likely 
Acked-by: David S. Miller 
Cc: Benjamin Herrenschmidt 
Cc: Julian Calaby

sparc/PCI: register busn_res for root buses

2012-06-13T21:42:24+00:00

Add the host bridge bus number aperture to the resource list.
Like the MMIO and I/O port apertures, this is used when assigning
resources to hot-added devices or in the case of conflicts.

[bhelgaas: changelog, fix "pci_last_busn" typo]
Acked-by: "David S. Miller" 
CC: sparclinux@vger.kernel.org
Signed-off-by: Yinghai Lu 
Signed-off-by: Bjorn Helgaas

sparc64: rename virt_irq => irq - II

2011-03-17T01:19:03+00:00

The generic irq support uses the term 'irq' for the
allocated irq number.
Fix it so sparc64 use the same term for an irq as the
generic irq support does.
For a naive reader this is less confusing.

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller

sparc: remove references to of_device and to_of_device

2010-07-24T15:58:22+00:00

of_device is just a #define alias to platform_device.  This patch
replaces all references to it with platform_device.

Signed-off-by: Grant Likely 
Acked-by: David S. Miller

sparc,sparc64: unify kernel/

2008-12-04T17:17:21+00:00

o Move all files from sparc64/kernel/ to sparc/kernel
  - rename as appropriate
o Update sparc/Makefile to the changes
o Update sparc/kernel/Makefile to include the sparc64 files

NOTE: This commit changes link order on sparc64!

Link order had to change for either of sparc32 and sparc64.
And assuming sparc64 see more testing than sparc32 change link
order on sparc64 where issues will be caught faster.

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller