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| author | Max Dmitrichenko <[email protected]> | 2008-11-02 07:34:10 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2008-11-02 07:34:10 +0000 |
| commit | 5769907ade8dda7002b304c03ef9e4ee5c1e0821 (patch) | |
| tree | 620a1fd9938abb10abfb0dde236a6e29026ab4ab /fs/ubifs/commit.c | |
| parent | sparc64: Kill annoying warning when building compat_binfmt_elf.o (diff) | |
| download | kernel-5769907ade8dda7002b304c03ef9e4ee5c1e0821.tar.gz kernel-5769907ade8dda7002b304c03ef9e4ee5c1e0821.zip | |
sparc64: Fix PCI resource mapping on sparc64
There is a problem discovered in recent versions of ATI Mach64 driver
in X.org on sparc64 architecture. In short, the driver fails to mmap
MMIO aperture (PCI resource #2).
I've found that kernel's __pci_mmap_make_offset() returns EINVAL. It
checks whether user attempts to mmap more than the resource length,
which is 0x1000 bytes in our case. But PAGE_SIZE on SPARC64 is 0x2000
and this is what actually is being mmaped. So __pci_mmap_make_offset()
failed for this PCI resource.
Signed-off-by: Max Dmitrichenko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'fs/ubifs/commit.c')
0 files changed, 0 insertions, 0 deletions