diff options
| author | Kevin Hao <haokexin@gmail.com> | 2013-05-16 20:58:41 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-06-01 08:29:28 +1000 |
| commit | 279838960484fa22d903086eea743a6b6700647d (patch) | |
| tree | 6c34222df22bb0405a848830d1358590612d3199 | |
| parent | f274ef8747d3be649bba8708696fb31cb00fa75a (diff) | |
powerpc/pci: Remove the stale comments of pci_process_bridge_OF_ranges
These comments already don't apply to the current code. So just remove
them.
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/kernel/pci-common.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index e9acf50dd5b2..8acd7c970830 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -657,15 +657,6 @@ void pci_resource_to_user(const struct pci_dev *dev, int bar, * ranges. However, some machines (thanks Apple !) tend to split their * space into lots of small contiguous ranges. So we have to coalesce. * - * - We can only cope with all memory ranges having the same offset - * between CPU addresses and PCI addresses. Unfortunately, some bridges - * are setup for a large 1:1 mapping along with a small "window" which - * maps PCI address 0 to some arbitrary high address of the CPU space in - * order to give access to the ISA memory hole. - * The way out of here that I've chosen for now is to always set the - * offset based on the first resource found, then override it if we - * have a different offset and the previous was set by an ISA hole. - * * - Some busses have IO space not starting at 0, which causes trouble with * the way we do our IO resource renumbering. The code somewhat deals with * it for 64 bits but I would expect problems on 32 bits. |