diff options
| author |   Gavin Shan <gwshan@linux.vnet.ibm.com> | 2014-09-30 12:38:52 +1000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2014-09-30 17:15:07 +1000 |
| commit | 0d5ee5205e62908172bf5e1a5fd171ba262fdb75 (patch) | |
| tree | 427ac277b994176d914427ea2cb9a07d06fc4636 /arch/powerpc/include | |
| parent | powerpc/eeh: Add eeh_pe_state sysfs entry (diff) | |
| download | linux-dev-0d5ee5205e62908172bf5e1a5fd171ba262fdb75.tar.xz linux-dev-0d5ee5205e62908172bf5e1a5fd171ba262fdb75.zip | |
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/include')
| -rw-r--r-- | arch/powerpc/include/asm/eeh.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index c79869d4a652..59d3e2a4fc42 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -172,6 +172,7 @@ enum { #define EEH_OPT_ENABLE 1 /* EEH enable */ #define EEH_OPT_THAW_MMIO 2 /* MMIO enable */ #define EEH_OPT_THAW_DMA 3 /* DMA enable */ +#define EEH_OPT_FREEZE_PE 4 /* Freeze PE */ #define EEH_STATE_UNAVAILABLE (1 << 0) /* State unavailable */ #define EEH_STATE_NOT_SUPPORT (1 << 1) /* EEH not supported */ #define EEH_STATE_RESET_ACTIVE (1 << 2) /* Active reset */ |