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| author | Borislav Petkov <borislav.petkov@amd.com> | 2012-08-09 18:41:07 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@alien8.de> | 2012-11-28 11:45:01 +0100 |
| commit | 66fed2d464157eb20c37738d75b281458dfc2cab (patch) | |
| tree | 2ef45590cacc3c69d9901153f4dc1199e20b7fa1 /drivers/edac/amd64_edac.c | |
| parent | 6e71a870b8ff2c1e2d89e5ea27a38cea39cefa3d (diff) | |
| download | linux-66fed2d464157eb20c37738d75b281458dfc2cab.tar.gz linux-66fed2d464157eb20c37738d75b281458dfc2cab.tar.bz2 linux-66fed2d464157eb20c37738d75b281458dfc2cab.zip | |
amd64_edac: Improve error injection
When injecting DRAM ECC errors over the F3xB[8,C] interface, the machine
does this by injecting the error in the next non-cached access. This
takes relatively long time on a normal system so that in order for us to
expedite it, we disable the caches around the injection.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Diffstat (limited to 'drivers/edac/amd64_edac.c')
| -rw-r--r-- | drivers/edac/amd64_edac.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 5960a8a07fd2..351496af9e8d 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -60,8 +60,8 @@ struct scrubrate { { 0x00, 0UL}, /* scrubbing off */ }; -static int __amd64_read_pci_cfg_dword(struct pci_dev *pdev, int offset, - u32 *val, const char *func) +int __amd64_read_pci_cfg_dword(struct pci_dev *pdev, int offset, + u32 *val, const char *func) { int err = 0; @@ -1980,11 +1980,11 @@ static void amd64_handle_ue(struct mem_ctl_info *mci, struct mce *m) static inline void __amd64_decode_bus_error(struct mem_ctl_info *mci, struct mce *m) { - u16 ec = EC(m->status); - u8 xec = XEC(m->status, 0x1f); u8 ecc_type = (m->status >> 45) & 0x3; + u8 xec = XEC(m->status, 0x1f); + u16 ec = EC(m->status); - /* Bail early out if this was an 'observed' error */ + /* Bail out early if this was an 'observed' error */ if (PP(ec) == NBSL_PP_OBS) return; |