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| author | Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> | 2019-03-04 22:36:42 +0530 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.ibm.com> | 2019-03-05 15:28:06 +1100 |
| commit | 497734984231f7c76576a5b0b1762cdaeac6c67a (patch) | |
| tree | dad4314991db1c2117e46d7fab075355f76b4079 /core | |
| parent | ca349b836d026e6442c873663a9fd72687a4298a (diff) | |
| download | talos-skiboot-497734984231f7c76576a5b0b1762cdaeac6c67a.tar.gz talos-skiboot-497734984231f7c76576a5b0b1762cdaeac6c67a.zip | |
opal/hmi: set a flag to inform OS that TOD/TB has failed.
Set a flag to indicate OS about TOD/TB failure as part of new
opal_handle_hmi2 handler. This flag then can be used by OS to make sure
functions depending on TB value (e.g. udelay()) are aware of TB not
ticking.
Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
Diffstat (limited to 'core')
| -rw-r--r-- | core/hmi.c | 4 |
1 files changed, 3 insertions, 1 deletions
@@ -1223,10 +1223,12 @@ static int handle_tfac_errors(struct OpalHMIEvent *hmi_evt, uint64_t *out_flags) /* Set the TB state looking at TFMR register before we head out. */ this_cpu()->tb_invalid = !(mfspr(SPR_TFMR) & SPR_TFMR_TB_VALID); - if (this_cpu()->tb_invalid) + if (this_cpu()->tb_invalid) { + *out_flags |= OPAL_HMI_FLAGS_TOD_TB_FAIL; prlog(PR_WARNING, "Failed to get TB in running state! " "CPU=%x, TFMR=%016lx\n", this_cpu()->pir, mfspr(SPR_TFMR)); + } return recover; } |
