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Diffstat (limited to 'docs/platform-interrupt-controller-API.rst')
| -rw-r--r-- | docs/platform-interrupt-controller-API.rst | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/docs/platform-interrupt-controller-API.rst b/docs/platform-interrupt-controller-API.rst index 795c08562..c14f00530 100644 --- a/docs/platform-interrupt-controller-API.rst +++ b/docs/platform-interrupt-controller-API.rst @@ -292,6 +292,22 @@ inserts to order memory updates before updating mask, then writes to the GIC *Priority Mask Register*, and make sure memory updates are visible before potential trigger due to mask update. +Function: unsigned int plat_ic_get_interrupt_id(unsigned int raw); [optional] +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +:: + + Argument : unsigned int + Return : unsigned int + +This API should extract and return the interrupt number from the raw value +obtained by the acknowledging the interrupt (read using +``plat_ic_acknowledge_interrupt()``). If the interrupt ID is invalid, this API +should return ``INTR_ID_UNAVAILABLE``. + +In case of ARM standard platforms using GIC, the implementation of the API +masks out the interrupt ID field from the acknowledged value from GIC. + ---- *Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.* |