diff options
| author | Gavin Shan <gwshan@linux.vnet.ibm.com> | 2014-09-30 06:38:52 +0400 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2014-09-30 11:15:07 +0400 |
| commit | 0d5ee5205e62908172bf5e1a5fd171ba262fdb75 (patch) | |
| tree | 427ac277b994176d914427ea2cb9a07d06fc4636 /arch/powerpc/platforms/pseries/eeh_pseries.c | |
| parent | 940376b3a463303787c6227c0327612653bf5600 (diff) | |
| download | linux-0d5ee5205e62908172bf5e1a5fd171ba262fdb75.tar.xz | |
powerpc/eeh: Freeze PE before PE reset
The patch adds one more option (EEH_OPT_FREEZE_PE) to set_option()
method to proactively freeze PE, which will be issued before resetting
pass-throughed PE to drop MMIO access during reset because it's
always contributing to recursive EEH error.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/platforms/pseries/eeh_pseries.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/eeh_pseries.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c index b08053819d99..b645dc60e000 100644 --- a/arch/powerpc/platforms/pseries/eeh_pseries.c +++ b/arch/powerpc/platforms/pseries/eeh_pseries.c @@ -349,7 +349,9 @@ static int pseries_eeh_set_option(struct eeh_pe *pe, int option) if (pe->addr) config_addr = pe->addr; break; - + case EEH_OPT_FREEZE_PE: + /* Not support */ + return 0; default: pr_err("%s: Invalid option %d\n", __func__, option); |