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lib: sbi: Add system_resume callback for restoring the system

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The last core who performs the system suspend is responsible for
restoring the system after waking up. Add the system_resume callback for
restoring the system from suspend.

Suggested-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Nick Hu <nick.hu@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20251020-cache-upstream-v7-11-69a132447d8a@sifive.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Nick Hu
2025-10-20 14:34:13 +08:00
committed by Anup Patel
parent 8f8c393155
commit ab23d8a392
3 changed files with 28 additions and 1 deletions
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5
lib/sbi/sbi_hsm.c
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@@ -455,7 +455,10 @@ void sbi_hsm_hart_resume_start(struct sbi_scratch *scratch)
SBI_HSM_STATE_RESUME_PENDING))
sbi_hart_hang();
hsm_device_hart_resume();
if (sbi_system_is_suspended())
sbi_system_resume();
else
hsm_device_hart_resume();
}
void __noreturn sbi_hsm_hart_resume_finish(struct sbi_scratch *scratch,