| commit | 3f579c340fe6d6bdd8c6f9f144e7c3b85d4174ec | |
| author | Yinghai Lu <yinghai@kernel.org> | |
| Fri, 21 May 2010 21:35:06 +0000 (21 14:35 -0700) | ||
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | |
| Fri, 30 Jul 2010 16:29:16 +0000 (30 09:29 -0700) | ||
| tree | 7dbffa4e375aa2315c19db402857a07b24c82b40 | treesnapshot (tar.gz zip) |
| parent | 0ba10bc75271e4139eb9ca67d107624d581e3a94 | commitdiff |
PCI hotplug: make sure child bridges are enabled at hotplug time
Found one PCIe Module with several bridges built-in where a "cold"
hotadd doesn't work.
If we end up reassigning bridge windows at hotadd time, and have to loop
through assigning new ranges, we won't end up enabling the child bridges
because the first assignment pass already tried to enable them, which
prevents __pci_bridge_assign_resource from updating the windows.
So try to move enabling of child bridges to the end, and only do it
once.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Found one PCIe Module with several bridges built-in where a "cold"
hotadd doesn't work.
If we end up reassigning bridge windows at hotadd time, and have to loop
through assigning new ranges, we won't end up enabling the child bridges
because the first assignment pass already tried to enable them, which
prevents __pci_bridge_assign_resource from updating the windows.
So try to move enabling of child bridges to the end, and only do it
once.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| drivers/pci/setup-bus.c | diffblobblamehistory |