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| author | Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> | 2019-03-06 14:53:18 +0530 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.ibm.com> | 2019-03-15 14:31:09 +1100 |
| commit | 27e4943eade205da99c885cb0a879a92e63ce53f (patch) | |
| tree | 812baac1f3a20a8d1b26bff0e19c7b079ad4ec1e /core/init.c | |
| parent | 998911498597f3a057d73f7c78c075d830d22731 (diff) | |
| download | skiboot-27e4943eade205da99c885cb0a879a92e63ce53f.zip skiboot-27e4943eade205da99c885cb0a879a92e63ce53f.tar.gz skiboot-27e4943eade205da99c885cb0a879a92e63ce53f.tar.bz2 | |
fast-reboot: occ: Remove 'freq-domain-mask' from fast-reboot path
OCC can change the pstate table at runtime to modify pstate limits or
for characterization purpose. These changes are reflected by re-parsing
the pstate table during fast-reboot to update the device-tree. Only
relevant pstate DT properties are deleted and newly added during
fast-reboot. The device-tree properties like 'freq-domain-mask' and
'domain-runs-at' are currently hard-coded and need not be updated
during fast-reboot. So this patch removes them from the fast-reboot path.
This patch fixes the below crash:
[ 270.313998453,5] OCC: All Chip Rdy after 0 ms
[ 270.314148918,3] Duplicate property "freq-domain-mask" in node /ibm,opal/power-mgt
[ 270.314208553,0] Aborting!
CPU 083c Backtrace:
S: 0000000035de3a20 R: 000000003001b480 ._abort+0x4c
S: 0000000035de3aa0 R: 0000000030028704 .new_property+0xd8
S: 0000000035de3b30 R: 0000000030028964 .__dt_add_property_cells+0x30
S: 0000000035de3bd0 R: 0000000030042980 .occ_pstates_init+0x7c8
S: 0000000035de3d90 R: 00000000300145f4 .load_and_boot_kernel+0x980
S: 0000000035de3e70 R: 00000000300276b4 .fast_reboot_entry+0x37c
S: 0000000035de3f00 R: 0000000030002ac4 reset_fast_reboot_wakeup+0x40
Fixes: b821f8c2a8e3("power-mgmt : occ : Add 'freq-domain-mask' DT property")
Reported-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Tested-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
Diffstat (limited to 'core/init.c')
0 files changed, 0 insertions, 0 deletions