diff options
| author | Ingo Molnar <mingo@kernel.org> | 2013-12-17 15:27:08 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-12-17 15:27:08 +0100 |
| commit | bb799d3b980eb803ca2da4a4eefbd9308f8d988a (patch) | |
| tree | 69fbe0cd6d47b23a50f5e1d87bf7489532fae149 /arch/powerpc/kernel/eeh.c | |
| parent | 919fc6e34831d1c2b58bfb5ae261dc3facc9b269 (diff) | |
| parent | 319e2e3f63c348a9b66db4667efa73178e18b17d (diff) | |
| download | lwn-bb799d3b980eb803ca2da4a4eefbd9308f8d988a.tar.gz lwn-bb799d3b980eb803ca2da4a4eefbd9308f8d988a.zip | |
Merge tag 'v3.13-rc4' into core/locking
Merge Linux 3.13-rc4, to refresh this rather old tree with the latest fixes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/powerpc/kernel/eeh.c')
| -rw-r--r-- | arch/powerpc/kernel/eeh.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c index 671302065347..4bd687d5e7aa 100644 --- a/arch/powerpc/kernel/eeh.c +++ b/arch/powerpc/kernel/eeh.c @@ -686,6 +686,15 @@ void eeh_save_bars(struct eeh_dev *edev) for (i = 0; i < 16; i++) eeh_ops->read_config(dn, i * 4, 4, &edev->config_space[i]); + + /* + * For PCI bridges including root port, we need enable bus + * master explicitly. Otherwise, it can't fetch IODA table + * entries correctly. So we cache the bit in advance so that + * we can restore it after reset, either PHB range or PE range. + */ + if (edev->mode & EEH_DEV_BRIDGE) + edev->config_space[1] |= PCI_COMMAND_MASTER; } /** |