Files
opensbi/include/sbi_utils/irqchip/plic.h
Samuel Holland 56fddce83f lib: utils/irqchip: Move per-hart data from fdt_plic to plic
The per-hart PLIC pointer is not really specific to FDT platforms. Move
it into the main driver and drop the extra wrapper functions.

Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
2024-11-28 11:35:01 +05:30

50 lines
1.1 KiB
C

/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2019 Western Digital Corporation or its affiliates.
*
* Authors:
* Anup Patel <anup.patel@wdc.com>
*/
#ifndef __IRQCHIP_PLIC_H__
#define __IRQCHIP_PLIC_H__
#include <sbi/sbi_types.h>
struct plic_data {
unsigned long addr;
unsigned long size;
unsigned long num_src;
unsigned long flags;
void *pm_data;
s16 context_map[][2];
};
/** Work around a bug on Ariane that requires enabling interrupts at boot */
#define PLIC_FLAG_ARIANE_BUG BIT(0)
/** PLIC must be delegated to S-mode like T-HEAD C906 and C910 */
#define PLIC_FLAG_THEAD_DELEGATION BIT(1)
/** Allocate space for power management save/restore operations */
#define PLIC_FLAG_ENABLE_PM BIT(2)
#define PLIC_M_CONTEXT 0
#define PLIC_S_CONTEXT 1
#define PLIC_DATA_SIZE(__hart_count) (sizeof(struct plic_data) + \
(__hart_count) * 2 * sizeof(s16))
#define PLIC_IE_WORDS(__p) ((__p)->num_src / 32 + 1)
struct plic_data *plic_get(void);
void plic_suspend(void);
void plic_resume(void);
int plic_warm_irqchip_init(void);
int plic_cold_irqchip_init(struct plic_data *plic);
#endif