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  1. 12 8月, 2008 2 次提交
  3. 11 8月, 2008 4 次提交
    • J
      powerpc: Do not ignore arch/powerpc/include · 0afd2ac9
      由 Junio C Hamano 提交于 
      Back when .gitignore file was added to arch/powerpc/ in 06f2138e ([POWERPC]
Add files build to .gitignore, 2006-11-26), there indeed was nothing
tracked in the ignored hierarchy and ignoring everything made sense.  But
we have very many tracked files there these days, and having a higher
level .gitignore that ignores everything is asking for future troubles..

This should have been part of b8b572e1 (powerpc: Move include files to
arch/powerpc/include/asm, 2008-08-01).
Signed-off-by: NJunio C Hamano <gitster@pobox.com>
Acked-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>
      0afd2ac9
    • B
      powerpc/mm: Fix attribute confusion with htab_bolt_mapping() · bc033b63
      由 Benjamin Herrenschmidt 提交于 
      The function htab_bolt_mapping() is used to create permanent
mappings in the MMU hash table, for example, in order to create
the linear mapping of vmemmap.  It's also used by early boot
ioremap (before mem_init_done).

However, the way ioremap uses it is incorrect as it passes it the
protection flags in the "linux PTE" form while htab_bolt_mapping()
expects them in the hash table format.  This is made more confusing by
the fact that some of those flags are actually in the same position in
both cases.

This fixes it all by making htab_bolt_mapping() take normal linux
protection flags instead, and use a little helper to convert them to
htab flags. Callers can now use the usual PAGE_* definitions safely.
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

 arch/powerpc/include/asm/mmu-hash64.h |    2 -
 arch/powerpc/mm/hash_utils_64.c       |   65 ++++++++++++++++++++--------------
 arch/powerpc/mm/init_64.c             |    9 +---
 3 files changed, 44 insertions(+), 32 deletions(-)
Signed-off-by: NPaul Mackerras <paulus@samba.org>
      bc033b63
    • B
      powerpc/pci: Don't keep ISA memory hole resources in the tree · 8db13a0e
      由 Benjamin Herrenschmidt 提交于 
      When we have an ISA memory hole (ie, a PCI window that allows us to
generate PCI memory cycles at low PCI address) mixed with other
resources using a different CPU <=> PCI mapping, we must not keep
the ISA hole in the bridge resource list.

If we do, things might start trying to allocate device resources
in there and will get the PCI addresses wrong.

This fixes it by arranging to remove the ISA memory hole resource in
this case.  This fixes various cases of PCMCIA breakage on PowerBooks
using the MPC106 "grackle" bridge.
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>
      8db13a0e
    • N
      powerpc: Zero fill the return values of rtas argument buffer · b79998fc
      由 Nathan Fontenot 提交于 
      The kernel copy of the rtas args struct contains the return
value(s) for the specified rtas call.  These are copied back
to user space with the assumption that every value has been
set by the rtas call, which turns out to be not always true.
Thus userspace can see random values and think the call failed
when in fact it succeeded, but for some reason didn't set one
of the return values.

This fixes the problem by zeroing out the return value fields
of the rtas args struct before processing the rtas call.
Signed-off-by: NNathan Fontenot <nfont@austin.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>
      b79998fc
  5. 09 8月, 2008 5 次提交
  7. 08 8月, 2008 13 次提交
  9. 07 8月, 2008 10 次提交
  11. 06 8月, 2008 4 次提交
  13. 05 8月, 2008 2 次提交