diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2013-08-05 16:15:10 -0600 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2013-08-05 16:15:10 -0600 |
| commit | 2d1d66780ecd12c9518835303f5302fc5262d49b (patch) | |
| tree | 1d53810160229afde603c2e24939e852f7513986 /tools/perf/util/scripting-engines/trace-event-perl.c | |
| parent | 11251a869e84b2a3224955fe149dd33a16805cbf (diff) | |
PCI: Align bridge I/O windows as required by downstream devices & bridges
An upstream bridge's I/O window must be at least as aligned as any
downstream device or bridge requires. In particular, if the upstream
bridge supports 1K alignment but a downstream bridge requires 4K alignment,
the upstream window must also be 4K aligned.
Therefore, do not reduce the required alignment ("min_align") based on
the upstream bridge's capabilities.
Reported-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Suggested-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-perl.c')
0 files changed, 0 insertions, 0 deletions