From f3f4604c196dea70b0bb64aba747aa6d7a9e244f Mon Sep 17 00:00:00 2001 From: Anup Patel Date: Fri, 18 Feb 2022 23:18:41 +0530 Subject: lib: sbi: Add a simple external interrupt handling framework Currently, the external interrupt handling is scattered between sbi_init and sbi_trap. This patch moves all external interrupt handling into a simple framework called sbi_irqchip. Signed-off-by: Anup Patel Reviewed-by: Xiang W Reviewed-by: Atish Patra --- include/sbi/sbi_irqchip.h | 44 ++++++++++++++++++++++++++++++++++++++++++++ include/sbi/sbi_trap.h | 2 -- 2 files changed, 44 insertions(+), 2 deletions(-) create mode 100644 include/sbi/sbi_irqchip.h (limited to 'include') diff --git a/include/sbi/sbi_irqchip.h b/include/sbi/sbi_irqchip.h new file mode 100644 index 00000000..6acc6e3f --- /dev/null +++ b/include/sbi/sbi_irqchip.h @@ -0,0 +1,44 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2022 Ventana Micro Systems Inc. + * + * Authors: + * Anup Patel + */ + +#ifndef __SBI_IRQCHIP_H__ +#define __SBI_IRQCHIP_H__ + +#include + +struct sbi_scratch; +struct sbi_trap_regs; + +/** + * Set external interrupt handling function + * + * This function is called by OpenSBI platform code to set a handler for + * external interrupts + * + * @param fn function pointer for handling external irqs + */ +void sbi_irqchip_set_irqfn(int (*fn)(struct sbi_trap_regs *regs)); + +/** + * Process external interrupts + * + * This function is called by sbi_trap_handler() to handle external + * interrupts. + * + * @param regs pointer for trap registers + */ +int sbi_irqchip_process(struct sbi_trap_regs *regs); + +/** Initialize interrupt controllers */ +int sbi_irqchip_init(struct sbi_scratch *scratch, bool cold_boot); + +/** Exit interrupt controllers */ +void sbi_irqchip_exit(struct sbi_scratch *scratch); + +#endif diff --git a/include/sbi/sbi_trap.h b/include/sbi/sbi_trap.h index 4f611fa4..d205056d 100644 --- a/include/sbi/sbi_trap.h +++ b/include/sbi/sbi_trap.h @@ -205,8 +205,6 @@ struct sbi_trap_info { int sbi_trap_redirect(struct sbi_trap_regs *regs, struct sbi_trap_info *trap); -void sbi_trap_set_external_irqfn(int (*fn)(struct sbi_trap_regs *regs)); - struct sbi_trap_regs *sbi_trap_handler(struct sbi_trap_regs *regs); void __noreturn sbi_trap_exit(const struct sbi_trap_regs *regs); -- cgit v1.3.1