x86: PAT use reserve free memtype in pci_mmap_page_range

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Add reserve_memtype and free_memtype wrapper for pci_mmap_page_range. Free
is called on unmap, but identity map continues to be mapped as per
pci_mmap_page_range request, until next request for the same region calls
ioremap_change_attr(), which will go through without conflict. This way of
mapping is identical to one used in ioremap/iounmap.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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venkatesh.pallipadi@intel.com 2008-03-18 17:00:19 -07:00 • committed by Ingo Molnar

parent 1219333dfd

commit 03d72aa18f

1 changed files with 60 additions and 8 deletions

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arch/x86/pci/i386.c

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