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lib: Add irqchip exit API
We add an optional platform irqchip exit hook for exit path handling in sbi_exit() implementation. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
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2 changed files with 15 additions and 0 deletions
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@ -109,6 +109,8 @@ struct sbi_platform_operations {
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/** Initialize the platform interrupt controller for current HART */
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int (*irqchip_init)(bool cold_boot);
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/** Exit the platform interrupt controller for current HART */
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void (*irqchip_exit)(void);
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/** Send IPI to a target HART */
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void (*ipi_send)(u32 target_hart);
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@ -459,6 +461,17 @@ static inline int sbi_platform_irqchip_init(const struct sbi_platform *plat,
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return 0;
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}
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/**
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* Exit the platform interrupt controller for current HART
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*
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* @param plat pointer to struct sbi_platform
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*/
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static inline void sbi_platform_irqchip_exit(const struct sbi_platform *plat)
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{
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if (plat && sbi_platform_ops(plat)->irqchip_exit)
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sbi_platform_ops(plat)->irqchip_exit();
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}
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/**
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* Send IPI to a target HART
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*
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@ -209,6 +209,8 @@ void __noreturn sbi_exit(struct sbi_scratch *scratch)
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sbi_ipi_exit(scratch);
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sbi_platform_irqchip_exit(plat);
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sbi_platform_final_exit(plat);
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sbi_hart_hang();
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