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  1. 21 11月, 2009 1 次提交
  3. 21 5月, 2009 1 次提交
  5. 19 5月, 2009 4 次提交
  7. 29 1月, 2009 1 次提交
  9. 08 1月, 2009 2 次提交
    • T
      powerpc/fsl-pci: Set relaxed ordering on prefetchable ranges · 565f3764
      由 Trent Piepho 提交于 
      Provides a small speedup when accessing pefetchable ranges.  To indicate
that a memory range is prefetchable, mark it in the dts file with 42000000
instead of 02000000.

A powepc pci_controller is allowed three memory ranges, any of which may be
prefetchable.  However, the PCI-PCI bridge configuration space only has one
field for "non-prefetchable memory behind bridge", which has a 32 bit
address, and one field for "prefetchable memory behind bridge", which may
have a 64 bit address.  These are PCI bus addresses, not CPU physical
addresses.

So really you're only allowed one memory range of each type.  And if you
want the range at a PCI address above 32 bits you must make it
prefetchable.
Signed-off-by: NTrent Piepho <tpiepho@freescale.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
      565f3764
    • T
      powerpc/fsl-pci: Better ATMU setup for 85xx/86xx · a097a78c
      由 Trent Piepho 提交于 
      The code that sets up the outbound ATMU windows, which is used to map CPU
physical addresses into PCI bus addresses where BARs will be mapped, didn't
work so well.

For one, it leaked the ioremap() of the ATMU registers.  Another small bug
was the high 20 bits of the PCI bus address were left as zero.  It's legal
for prefetchable memory regions to be above 32 bits, so the high 20 bits
might not be zero.

Mainly, it couldn't handle ranges that were not a power of two in size or
were not naturally aligned.  The ATMU windows have these requirements (size
& alignment), but the code didn't bother to check if the ranges it was
programming met them.  If they didn't, the windows would silently be
programmed incorrectly.

This new code can handle ranges which are not power of two sized nor
naturally aligned.  It simply splits the ranges into multiple valid ATMU
windows.  As there are only four windows, pooly aligned or sized ranges
(which didn't even work before) may run out of windows.  In this case an
error is printed and an effort is made to disable the unmapped resources.

An improvement that could be made would be to make use of the default
outbound window.  Iff hose->pci_mem_offset is zero, then it's possible that
some or all of the ranges might not need an outbound window and could just
use the default window.

The default ATMU window can support a pci_mem_offset less than zero too,
but pci_mem_offset is unsigned.  One could say the abilities allowed a
powerpc pci_controller is neither subset nor a superset of the abilities of
a Freescale PCIe controller.  Thankfully, the most useful bits are in the
intersection of the two abilities.
Signed-off-by: NTrent Piepho <tpiepho@freescale.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
      a097a78c
  11. 31 12月, 2008 1 次提交
  13. 16 12月, 2008 1 次提交
  15. 14 10月, 2008 2 次提交
  17. 17 7月, 2008 1 次提交
  19. 14 7月, 2008 1 次提交
  21. 03 6月, 2008 2 次提交
  23. 24 1月, 2008 1 次提交
  25. 20 12月, 2007 1 次提交
  27. 03 12月, 2007 1 次提交
  29. 16 10月, 2007 1 次提交
  31. 08 10月, 2007 2 次提交
  33. 14 9月, 2007 1 次提交
  35. 22 8月, 2007 1 次提交
  37. 26 7月, 2007 1 次提交
    • K
      [POWREPC] Fixup a number of modpost warnings on ppc32 · 282045b4
      由 Kumar Gala 提交于 
      Fixed the following warnings:

WARNING: vmlinux.o(.text+0x2934): Section mismatch: reference to .init.text:__alloc_bootmem (between 'irq_alloc_host' and 'irq_set_default_host')
WARNING: vmlinux.o(.text+0xb2aa): Section mismatch: reference to .init.data:boot_command_line (between 'register_early_udbg_console' and 'udbg_printf')
WARNING: vmlinux.o(.text+0xb2b2): Section mismatch: reference to .init.data:boot_command_line (between 'register_early_udbg_console' and 'udbg_printf')
WARNING: vmlinux.o(.text+0xe354): Section mismatch: reference to .init.text:__alloc_bootmem (between 'pcibios_alloc_controller' and 'pci_domain_nr')
WARNING: vmlinux.o(.text+0x12768): Section mismatch: reference to .init.text:update_bridge_resource (between 'quirk_fsl_pcie_transparent' and 'indirect_read_config')
WARNING: vmlinux.o(.text+0x127a8): Section mismatch: reference to .init.text:update_bridge_resource (between 'quirk_fsl_pcie_transparent' and 'indirect_read_config')
WARNING: vmlinux.o(.text+0x17566c): Section mismatch: reference to .init.text:pcibios_fixup_bus (between 'pci_scan_child_bus' and 'pci_scan_bus_parented')
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
      282045b4
  39. 25 7月, 2007 1 次提交
  41. 24 7月, 2007 6 次提交
  43. 23 7月, 2007 6 次提交
  45. 29 6月, 2007 1 次提交