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2 Commits

Author SHA1 Message Date
Samuel Holland
5e5675874c lib: utils/irqchip: Add wrapper for T-HEAD PLIC delegation 
The delegation bit is lost along with the rest of the PLIC state when
the CPU power domain in the Allwinner D1 is powered down, so the PLIC
needs to be re-delegated to S-mode during the hart resume path.

Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Samuel Holland <samuel@sholland.org>
 2022-06-13 11:54:06 +05:30
Samuel Holland
69be3dff9d lib: utils/irqchip: Add FDT wrappers for PLIC save/restore functions 
These functions save/restore the state of the PLIC associated with the
current hart. The context save/restore functions only manipulate a
single context, since most likely the M-mode context is unused and does
not need to be saved.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Anup Patel <anup@brainfault.org>
 2022-06-13 11:54:06 +05:30