This patch series reworks the HMI handling and introduces new opal call
for hmi handling that returns info about which timer facilities were
fixed/lost e.g. TB re-synced, HDEC lost etc..
Patch 1 and 2 are minor improvements.
Patch 3 introduces new opal call opal_handle_hmi2
Patch 4 and 5 are again minor improvements and code movement.
Patch 6 does the major code rework and introduces 4 rendez vous points where
all threads synchronizes before clearing dirty data or errors at each step.
Patch 7 to 14 are incremental improvement patches that handles specific
cases for different set of HMIs.
TODO:
- Add documentation under doc/opal-api for opal_handle_hmi2 call.
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Benjamin Herrenschmidt (6):
opal/hmi: Don't re-read HMER multiple times
opal/hmi: Remove races in clearing HMER
opal/hmi: Add a new opal_handle_hmi2 that returns direct info to Linux
opal/hmi: Move timer related error handling to a separate function
opal/hmi: Don't bother passing HMER to pre-recovery cleanup
opal/hmi: Rework HMI handling of TFAC errors
Mahesh Salgaonkar (8):
opal/hmi: Initialize the hmi event with old value of HMER.
opal/hmi: Do not send HMI event if no errors are found.
opal/hmi: Fix soft lockups during TOD errors
opal/hmi: Stop flooding HMI event for TOD errors.
opal/hmi: Fix handling of TFMR parity/corrupt error.
opal/hmi: Print additional debug information in rendezvous.
opal/hmi: check thread 0 tfmr to validate latched tfmr errors.
opal/hmi: Generate hmi event for recovered HDEC parity error.
core/cpu.c | 2
core/hmi.c | 710 ++++++++++++++++++++++++-----------------------
hw/chiptod.c | 138 ++++-----
include/chiptod.h | 7
include/cpu.h | 3
include/opal-api.h | 11 +
include/opal-internal.h | 1
include/xscom-p9-regs.h | 8 +
8 files changed, 450 insertions(+), 430 deletions(-)
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