diff options
author | Samuel Holland <samuel@sholland.org> | 2022-06-13 04:03:53 +0300 |
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committer | Anup Patel <anup@brainfault.org> | 2022-06-13 09:24:06 +0300 |
commit | 69be3dff9df767c19a461fadf73ad7331b4bdb4c (patch) | |
tree | 9ca1324a308731dd34dcb330d23b239d063b60ba /lib | |
parent | 2b79b694a80513696daf072db0fd980e7573b212 (diff) | |
download | opensbi-69be3dff9df767c19a461fadf73ad7331b4bdb4c.tar.xz |
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>
Diffstat (limited to 'lib')
-rw-r--r-- | lib/utils/irqchip/fdt_irqchip_plic.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/lib/utils/irqchip/fdt_irqchip_plic.c b/lib/utils/irqchip/fdt_irqchip_plic.c index b2d2a1b..89b12d4 100644 --- a/lib/utils/irqchip/fdt_irqchip_plic.c +++ b/lib/utils/irqchip/fdt_irqchip_plic.c @@ -24,6 +24,38 @@ static struct plic_data plic[PLIC_MAX_NR]; static struct plic_data *plic_hartid2data[SBI_HARTMASK_MAX_BITS]; static int plic_hartid2context[SBI_HARTMASK_MAX_BITS][2]; +void fdt_plic_priority_save(u8 *priority) +{ + struct plic_data *plic = plic_hartid2data[current_hartid()]; + + plic_priority_save(plic, priority); +} + +void fdt_plic_priority_restore(const u8 *priority) +{ + struct plic_data *plic = plic_hartid2data[current_hartid()]; + + plic_priority_restore(plic, priority); +} + +void fdt_plic_context_save(bool smode, u32 *enable, u32 *threshold) +{ + u32 hartid = current_hartid(); + + plic_context_save(plic_hartid2data[hartid], + plic_hartid2context[hartid][smode], + enable, threshold); +} + +void fdt_plic_context_restore(bool smode, const u32 *enable, u32 threshold) +{ + u32 hartid = current_hartid(); + + plic_context_restore(plic_hartid2data[hartid], + plic_hartid2context[hartid][smode], + enable, threshold); +} + static int irqchip_plic_warm_init(void) { u32 hartid = current_hartid(); |