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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_RISCV_CLINT_H
#define _ASM_RISCV_CLINT_H 1
#include <linux/io.h>
#include <linux/smp.h>
#ifdef CONFIG_RISCV_M_MODE
extern u32 __iomem *clint_ipi_base;
void clint_init_boot_cpu(void);
static inline void clint_send_ipi_single(unsigned long hartid)
{
writel(1, clint_ipi_base + hartid);
}
static inline void clint_send_ipi_mask(const struct cpumask *hartid_mask)
{
int hartid;
for_each_cpu(hartid, hartid_mask)
clint_send_ipi_single(hartid);
}
static inline void clint_clear_ipi(unsigned long hartid)
{
writel(0, clint_ipi_base + hartid);
}
#else /* CONFIG_RISCV_M_MODE */
#define clint_init_boot_cpu() do { } while (0)
/* stubs to for code is only reachable under IS_ENABLED(CONFIG_RISCV_M_MODE): */
void clint_send_ipi_single(unsigned long hartid);
void clint_send_ipi_mask(const struct cpumask *hartid_mask);
void clint_clear_ipi(unsigned long hartid);
#endif /* CONFIG_RISCV_M_MODE */
#endif /* _ASM_RISCV_CLINT_H */
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