diff options
| author | Chiranjeevi Rapolu <chiranjeevi.rapolu@intel.com> | 2015-06-18 23:47:43 -0700 |
|---|---|---|
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2015-06-25 17:21:50 +0000 |
| commit | ddf77bbe785a5ae1c701ef70fb6e41a89168e341 (patch) | |
| tree | 9b47d735af60c1a5a34224189885f72666539184 /include/lpc.h | |
| parent | 331db691c418e607b9830ba96e6ca1b634c7cea4 (diff) | |
| download | chrome-ec-ddf77bbe785a5ae1c701ef70fb6e41a89168e341.tar.gz | |
Fix assertion crash in __wait_evt()
mutex_lock() is called from MEC1322_IRQ_ACPIEC0_IBF
interrupt context, causing deadlock and assertion
in __wait_evt().
In the interrupt context it now checks for mutex lock first.
If the mutex is already locked,, it will disable ACPI
interrupts and defer the memmap mutex lock.
Added LPC interrupt disable/enable functions as needed.
Increased deferred function count where needed.
BRANCH=None
BUG=chrome-os-partner:40820
TEST=Test for suspend-resume, cold, warm reboots and
other general stability.
Change-Id: I3dda0d4635a6b6281faf200c8c7b6fcba8877254
Signed-off-by: Chiranjeevi Rapolu <chiranjeevi.rapolu@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/280418
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
Commit-Queue: Divya Jyothi <divya.jyothi@intel.com>
Tested-by: Divya Jyothi <divya.jyothi@intel.com>
Diffstat (limited to 'include/lpc.h')
| -rw-r--r-- | include/lpc.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/lpc.h b/include/lpc.h index c38f711bda..c90a54a71c 100644 --- a/include/lpc.h +++ b/include/lpc.h @@ -113,4 +113,11 @@ void lpc_clear_acpi_status_mask(uint8_t mask); */ int lpc_get_pltrst_asserted(void); + +/* Disable LPC ACPI interrupts */ +void lpc_disable_acpi_interrupts(void); + +/* Enable LPC ACPI interrupts */ +void lpc_enable_acpi_interrupts(void); + #endif /* __CROS_EC_LPC_H */ |