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/*
* Copyright (c) 2018 Western Digital Corporation or its affiliates.
*
* Authors:
* Anup Patel <anup.patel@wdc.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#ifndef __SBI_PLATFORM_H__
#define __SBI_PLATFORM_H__
#include <sbi/sbi_scratch.h>
enum sbi_platform_features {
SBI_PLATFORM_HAS_MMIO_TIMER_VALUE = (1 << 0),
SBI_PLATFORM_HAS_HART_HOTPLUG = (1 << 1),
SBI_PLATFORM_HAS_PMP = (1 << 2),
SBI_PLATFORM_HAS_SCOUNTEREN = (1 << 3),
SBI_PLATFORM_HAS_MCOUNTEREN = (1 << 4),
SBI_PLATFORM_HAS_MFAULTS_DELEGATION = (1 << 5),
};
#define SBI_PLATFORM_DEFAULT_FEATURES \
(SBI_PLATFORM_HAS_MMIO_TIMER_VALUE | \
SBI_PLATFORM_HAS_PMP | \
SBI_PLATFORM_HAS_SCOUNTEREN | \
SBI_PLATFORM_HAS_MCOUNTEREN | \
SBI_PLATFORM_HAS_MFAULTS_DELEGATION)
struct sbi_platform {
char name[64];
u64 features;
u32 hart_count;
u32 hart_stack_size;
int (*cold_early_init)(void);
int (*cold_final_init)(void);
int (*warm_early_init)(u32 target_hart);
int (*warm_final_init)(u32 target_hart);
u32 (*pmp_region_count)(u32 target_hart);
int (*pmp_region_info)(u32 target_hart, u32 index,
ulong *prot, ulong *addr, ulong *log2size);
void (*console_putc)(char ch);
char (*console_getc)(void);
int (*console_init)(void);
int (*cold_irqchip_init)(void);
int (*warm_irqchip_init)(u32 target_hart);
void (*ipi_inject)(u32 target_hart, u32 source_hart);
void (*ipi_sync)(u32 target_hart, u32 source_hart);
void (*ipi_clear)(u32 target_hart);
int (*cold_ipi_init)(void);
int (*warm_ipi_init)(u32 target_hart);
u64 (*timer_value)(void);
void (*timer_event_stop)(u32 target_hart);
void (*timer_event_start)(u32 target_hart, u64 next_event);
int (*cold_timer_init)(void);
int (*warm_timer_init)(u32 target_hart);
int (*system_reboot)(u32 type);
int (*system_shutdown)(u32 type);
} __attribute__((packed));
#define sbi_platform_ptr(__s) \
((struct sbi_platform *)((__s)->platform_addr))
#define sbi_platform_thishart_ptr() \
((struct sbi_platform *)(sbi_scratch_thishart_ptr()->platform_addr))
#define sbi_platform_has_mmio_timer_value(__p) \
((__p)->features & SBI_PLATFORM_HAS_MMIO_TIMER_VALUE)
#define sbi_platform_has_hart_hotplug(__p) \
((__p)->features & SBI_PLATFORM_HAS_HART_HOTPLUG)
#define sbi_platform_has_pmp(__p) \
((__p)->features & SBI_PLATFORM_HAS_PMP)
#define sbi_platform_has_scounteren(__p) \
((__p)->features & SBI_PLATFORM_HAS_SCOUNTEREN)
#define sbi_platform_has_mcounteren(__p) \
((__p)->features & SBI_PLATFORM_HAS_MCOUNTEREN)
#define sbi_platform_has_mfaults_delegation(__p) \
((__p)->features & SBI_PLATFORM_HAS_MFAULTS_DELEGATION)
static inline const char *sbi_platform_name(struct sbi_platform *plat)
{
if (plat)
return plat->name;
return NULL;
}
static inline u32 sbi_platform_hart_count(struct sbi_platform *plat)
{
if (plat)
return plat->hart_count;
return 0;
}
static inline u32 sbi_platform_hart_stack_size(struct sbi_platform *plat)
{
if (plat)
return plat->hart_stack_size;
return 0;
}
static inline int sbi_platform_cold_early_init(struct sbi_platform *plat)
{
if (plat && plat->cold_early_init)
return plat->cold_early_init();
return 0;
}
static inline int sbi_platform_cold_final_init(struct sbi_platform *plat)
{
if (plat && plat->cold_final_init)
return plat->cold_final_init();
return 0;
}
static inline int sbi_platform_warm_early_init(struct sbi_platform *plat,
u32 target_hart)
{
if (plat && plat->warm_early_init)
return plat->warm_early_init(target_hart);
return 0;
}
static inline int sbi_platform_warm_final_init(struct sbi_platform *plat,
u32 target_hart)
{
if (plat && plat->warm_final_init)
return plat->warm_final_init(target_hart);
return 0;
}
static inline u32 sbi_platform_pmp_region_count(struct sbi_platform *plat,
u32 target_hart)
{
if (plat && plat->pmp_region_count)
return plat->pmp_region_count(target_hart);
return 0;
}
static inline int sbi_platform_pmp_region_info(struct sbi_platform *plat,
u32 target_hart, u32 index,
ulong *prot, ulong *addr,
ulong *log2size)
{
if (plat && plat->pmp_region_info)
return plat->pmp_region_info(target_hart, index,
prot, addr, log2size);
return 0;
}
static inline void sbi_platform_console_putc(struct sbi_platform *plat,
char ch)
{
if (plat && plat->console_putc)
plat->console_putc(ch);
}
static inline char sbi_platform_console_getc(struct sbi_platform *plat)
{
if (plat && plat->console_getc)
return plat->console_getc();
return 0;
}
static inline int sbi_platform_console_init(struct sbi_platform *plat)
{
if (plat && plat->console_init)
return plat->console_init();
return 0;
}
static inline int sbi_platform_warm_irqchip_init(struct sbi_platform *plat,
u32 target_hart)
{
if (plat && plat->warm_irqchip_init)
return plat->warm_irqchip_init(target_hart);
return 0;
}
static inline int sbi_platform_cold_irqchip_init(struct sbi_platform *plat)
{
if (plat && plat->cold_irqchip_init)
return plat->cold_irqchip_init();
return 0;
}
static inline void sbi_platform_ipi_inject(struct sbi_platform *plat,
u32 target_hart, u32 source_hart)
{
if (plat && plat->ipi_inject)
plat->ipi_inject(target_hart, source_hart);
}
static inline void sbi_platform_ipi_sync(struct sbi_platform *plat,
u32 target_hart, u32 source_hart)
{
if (plat && plat->ipi_sync)
plat->ipi_sync(target_hart, source_hart);
}
static inline void sbi_platform_ipi_clear(struct sbi_platform *plat,
u32 target_hart)
{
if (plat && plat->ipi_clear)
plat->ipi_clear(target_hart);
}
static inline int sbi_platform_warm_ipi_init(struct sbi_platform *plat,
u32 target_hart)
{
if (plat && plat->warm_ipi_init)
return plat->warm_ipi_init(target_hart);
return 0;
}
static inline int sbi_platform_cold_ipi_init(struct sbi_platform *plat)
{
if (plat && plat->cold_ipi_init)
return plat->cold_ipi_init();
return 0;
}
static inline u64 sbi_platform_timer_value(struct sbi_platform *plat)
{
if (plat && plat->timer_value)
return plat->timer_value();
return 0;
}
static inline void sbi_platform_timer_event_stop(struct sbi_platform *plat,
u32 target_hart)
{
if (plat && plat->timer_event_stop)
plat->timer_event_stop(target_hart);
}
static inline void sbi_platform_timer_event_start(struct sbi_platform *plat,
u32 target_hart,
u64 next_event)
{
if (plat && plat->timer_event_start)
plat->timer_event_start(target_hart, next_event);
}
static inline int sbi_platform_warm_timer_init(struct sbi_platform *plat,
u32 target_hart)
{
if (plat && plat->warm_timer_init)
return plat->warm_timer_init(target_hart);
return 0;
}
static inline int sbi_platform_cold_timer_init(struct sbi_platform *plat)
{
if (plat && plat->cold_timer_init)
return plat->cold_timer_init();
return 0;
}
static inline int sbi_platform_system_reboot(struct sbi_platform *plat,
u32 type)
{
if (plat && plat->system_reboot)
return plat->system_reboot(type);
return 0;
}
static inline int sbi_platform_system_shutdown(struct sbi_platform *plat,
u32 type)
{
if (plat && plat->system_shutdown)
return plat->system_shutdown(type);
return 0;
}
#endif
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