diff options
| author | Mike Qiu <qiudayu@linux.vnet.ibm.com> | 2014-07-02 04:02:06 -0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-07-21 14:48:45 +1000 |
| commit | 5377c73b25c6b19c3b3d238a5bcc7d5f1348ea45 (patch) | |
| tree | cef3e6c3834eea04d13eebeb77ae4142f57803f7 /core/pci-opal.c | |
| parent | 3ec0a137016cc515278071c2f7c413e43d345bf8 (diff) | |
| download | skiboot-5377c73b25c6b19c3b3d238a5bcc7d5f1348ea45.zip skiboot-5377c73b25c6b19c3b3d238a5bcc7d5f1348ea45.tar.gz skiboot-5377c73b25c6b19c3b3d238a5bcc7d5f1348ea45.tar.bz2 | |
core: PCI error injection API
The patch introduces new OPAL API opal_pci_err_injct() for injecting
PCI errors.
Signed-off-by: Mike Qiu <qiudayu@linux.vnet.ibm.com>
Reviewed-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'core/pci-opal.c')
| -rw-r--r-- | core/pci-opal.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/core/pci-opal.c b/core/pci-opal.c index ee534cc..fdeba33 100644 --- a/core/pci-opal.c +++ b/core/pci-opal.c @@ -93,6 +93,32 @@ static int64_t opal_pci_eeh_freeze_clear(uint64_t phb_id, uint64_t pe_number, } opal_call(OPAL_PCI_EEH_FREEZE_CLEAR, opal_pci_eeh_freeze_clear, 3); +static int64_t opal_pci_err_injct(uint64_t phb_id, uint32_t pe_no, + uint32_t type, uint32_t function, + uint64_t addr, uint64_t mask) +{ + struct phb *phb = pci_get_phb(phb_id); + int64_t rc; + + if (!phb) + return OPAL_PARAMETER; + if (!phb->ops || !phb->ops->err_injct) + return OPAL_UNSUPPORTED; + + if (type != OpalErrinjctTypeIoaBusError && + type != OpalErrinjctTypeIoaBusError64) + return OPAL_PARAMETER; + + phb->ops->lock(phb); + rc = phb->ops->err_injct(phb, pe_no, type, + function, addr, mask); + phb->ops->unlock(phb); + pci_put_phb(phb); + + return rc; +} +opal_call(OPAL_PCI_ERR_INJCT, opal_pci_err_injct, 6); + static int64_t opal_pci_phb_mmio_enable(uint64_t phb_id, uint16_t window_type, uint16_t window_num, uint16_t enable) { |