diff options
Diffstat (limited to 'include/sbi/sbi_platform.h')
| -rw-r--r-- | include/sbi/sbi_platform.h | 123 |
1 files changed, 68 insertions, 55 deletions
diff --git a/include/sbi/sbi_platform.h b/include/sbi/sbi_platform.h index e46acfd..824522e 100644 --- a/include/sbi/sbi_platform.h +++ b/include/sbi/sbi_platform.h @@ -18,6 +18,10 @@ #define SBI_PLATFORM_HART_COUNT_OFFSET (0x48) /** Offset of hart_stack_size in struct sbi_platform */ #define SBI_PLATFORM_HART_STACK_SIZE_OFFSET (0x4c) +/** Offset of disabled_hart_mask in struct sbi_platform */ +#define SBI_PLATFORM_DISABLED_HART_OFFSET (0x50) +/** Offset of platform_ops_addr in struct sbi_platform */ +#define SBI_PLATFORM_OPS_OFFSET (0x58) #ifndef __ASSEMBLY__ @@ -45,19 +49,8 @@ enum sbi_platform_features { SBI_PLATFORM_HAS_SCOUNTEREN | SBI_PLATFORM_HAS_MCOUNTEREN | \ SBI_PLATFORM_HAS_MFAULTS_DELEGATION) -/** Representation of a platform */ -struct sbi_platform { - /** Name of the platform */ - char name[64]; - /** Supported features */ - u64 features; - /** Total number of HARTs */ - u32 hart_count; - /** Per-HART stack size for exception/interrupt handling */ - u32 hart_stack_size; - /** Mask representing the set of disabled HARTs */ - u64 disabled_hart_mask; - +/** Platform functions */ +struct sbi_platform_operations { /** Platform early initialization */ int (*early_init)(bool cold_boot); /** Platform final initialization */ @@ -106,13 +99,33 @@ struct sbi_platform { int (*system_shutdown)(u32 type); } __packed; +/** Representation of a platform */ +struct sbi_platform { + /** Name of the platform */ + char name[64]; + /** Supported features */ + u64 features; + /** Total number of HARTs */ + u32 hart_count; + /** Per-HART stack size for exception/interrupt handling */ + u32 hart_stack_size; + /** Mask representing the set of disabled HARTs */ + u64 disabled_hart_mask; + /** Pointer to sbi platform operations */ + unsigned long platform_ops_addr; +} __packed; + /** Get pointer to sbi_platform for sbi_scratch pointer */ #define sbi_platform_ptr(__s) \ ((const struct sbi_platform *)((__s)->platform_addr)) /** Get pointer to sbi_platform for current HART */ #define sbi_platform_thishart_ptr() \ ((const struct sbi_platform *)(sbi_scratch_thishart_ptr() \ - ->platform_addr)) + >platform_addr)) +/** Get pointer to platform_ops_addr from platform pointer **/ +#define sbi_platform_ops(__p) \ + ((const struct sbi_platform_operations *)(__p)->platform_ops_addr) + /** Check whether the platform supports timer value */ #define sbi_platform_has_timer_value(__p) \ ((__p)->features & SBI_PLATFORM_HAS_TIMER_VALUE) @@ -200,8 +213,8 @@ static inline u32 sbi_platform_hart_stack_size(const struct sbi_platform *plat) static inline int sbi_platform_early_init(const struct sbi_platform *plat, bool cold_boot) { - if (plat && plat->early_init) - return plat->early_init(cold_boot); + if (plat && sbi_platform_ops(plat)->early_init) + return sbi_platform_ops(plat)->early_init(cold_boot); return 0; } @@ -216,8 +229,8 @@ static inline int sbi_platform_early_init(const struct sbi_platform *plat, static inline int sbi_platform_final_init(const struct sbi_platform *plat, bool cold_boot) { - if (plat && plat->final_init) - return plat->final_init(cold_boot); + if (plat && sbi_platform_ops(plat)->final_init) + return sbi_platform_ops(plat)->final_init(cold_boot); return 0; } @@ -232,8 +245,8 @@ static inline int sbi_platform_final_init(const struct sbi_platform *plat, static inline u32 sbi_platform_pmp_region_count(const struct sbi_platform *plat, u32 hartid) { - if (plat && plat->pmp_region_count) - return plat->pmp_region_count(hartid); + if (plat && sbi_platform_ops(plat)->pmp_region_count) + return sbi_platform_ops(plat)->pmp_region_count(hartid); return 0; } @@ -251,13 +264,13 @@ static inline u32 sbi_platform_pmp_region_count(const struct sbi_platform *plat, * @return 0 on success and negative error code on failure */ static inline int sbi_platform_pmp_region_info(const struct sbi_platform *plat, - u32 hartid, u32 index, - ulong *prot, ulong *addr, - ulong *log2size) + u32 hartid, u32 index, + ulong *prot, ulong *addr, + ulong *log2size) { - if (plat && plat->pmp_region_info) - return plat->pmp_region_info(hartid, index, prot, addr, - log2size); + if (plat && sbi_platform_ops(plat)->pmp_region_info) + return sbi_platform_ops(plat)->pmp_region_info(hartid, index, prot, addr, + log2size); return 0; } @@ -268,10 +281,10 @@ static inline int sbi_platform_pmp_region_info(const struct sbi_platform *plat, * @param ch character to write */ static inline void sbi_platform_console_putc(const struct sbi_platform *plat, - char ch) + char ch) { - if (plat && plat->console_putc) - plat->console_putc(ch); + if (plat && sbi_platform_ops(plat)->console_putc) + sbi_platform_ops(plat)->console_putc(ch); } /** @@ -283,8 +296,8 @@ static inline void sbi_platform_console_putc(const struct sbi_platform *plat, */ static inline int sbi_platform_console_getc(const struct sbi_platform *plat) { - if (plat && plat->console_getc) - return plat->console_getc(); + if (plat && sbi_platform_ops(plat)->console_getc) + return sbi_platform_ops(plat)->console_getc(); return -1; } @@ -297,8 +310,8 @@ static inline int sbi_platform_console_getc(const struct sbi_platform *plat) */ static inline int sbi_platform_console_init(const struct sbi_platform *plat) { - if (plat && plat->console_init) - return plat->console_init(); + if (plat && sbi_platform_ops(plat)->console_init) + return sbi_platform_ops(plat)->console_init(); return 0; } @@ -313,8 +326,8 @@ static inline int sbi_platform_console_init(const struct sbi_platform *plat) static inline int sbi_platform_irqchip_init(const struct sbi_platform *plat, bool cold_boot) { - if (plat && plat->irqchip_init) - return plat->irqchip_init(cold_boot); + if (plat && sbi_platform_ops(plat)->irqchip_init) + return sbi_platform_ops(plat)->irqchip_init(cold_boot); return 0; } @@ -327,8 +340,8 @@ static inline int sbi_platform_irqchip_init(const struct sbi_platform *plat, static inline void sbi_platform_ipi_send(const struct sbi_platform *plat, u32 target_hart) { - if (plat && plat->ipi_send) - plat->ipi_send(target_hart); + if (plat && sbi_platform_ops(plat)->ipi_send) + sbi_platform_ops(plat)->ipi_send(target_hart); } /** @@ -340,8 +353,8 @@ static inline void sbi_platform_ipi_send(const struct sbi_platform *plat, static inline void sbi_platform_ipi_sync(const struct sbi_platform *plat, u32 target_hart) { - if (plat && plat->ipi_sync) - plat->ipi_sync(target_hart); + if (plat && sbi_platform_ops(plat)->ipi_sync) + sbi_platform_ops(plat)->ipi_sync(target_hart); } /** @@ -353,8 +366,8 @@ static inline void sbi_platform_ipi_sync(const struct sbi_platform *plat, static inline void sbi_platform_ipi_clear(const struct sbi_platform *plat, u32 target_hart) { - if (plat && plat->ipi_clear) - plat->ipi_clear(target_hart); + if (plat && sbi_platform_ops(plat)->ipi_clear) + sbi_platform_ops(plat)->ipi_clear(target_hart); } /** @@ -368,8 +381,8 @@ static inline void sbi_platform_ipi_clear(const struct sbi_platform *plat, static inline int sbi_platform_ipi_init(const struct sbi_platform *plat, bool cold_boot) { - if (plat && plat->ipi_init) - return plat->ipi_init(cold_boot); + if (plat && sbi_platform_ops(plat)->ipi_init) + return sbi_platform_ops(plat)->ipi_init(cold_boot); return 0; } @@ -382,8 +395,8 @@ static inline int sbi_platform_ipi_init(const struct sbi_platform *plat, */ static inline u64 sbi_platform_timer_value(const struct sbi_platform *plat) { - if (plat && plat->timer_value) - return plat->timer_value(); + if (plat && sbi_platform_ops(plat)->timer_value) + return sbi_platform_ops(plat)->timer_value(); return 0; } @@ -396,8 +409,8 @@ static inline u64 sbi_platform_timer_value(const struct sbi_platform *plat) static inline void sbi_platform_timer_event_start(const struct sbi_platform *plat, u64 next_event) { - if (plat && plat->timer_event_start) - plat->timer_event_start(next_event); + if (plat && sbi_platform_ops(plat)->timer_event_start) + sbi_platform_ops(plat)->timer_event_start(next_event); } /** @@ -408,8 +421,8 @@ sbi_platform_timer_event_start(const struct sbi_platform *plat, u64 next_event) static inline void sbi_platform_timer_event_stop(const struct sbi_platform *plat) { - if (plat && plat->timer_event_stop) - plat->timer_event_stop(); + if (plat && sbi_platform_ops(plat)->timer_event_stop) + sbi_platform_ops(plat)->timer_event_stop(); } /** @@ -423,8 +436,8 @@ sbi_platform_timer_event_stop(const struct sbi_platform *plat) static inline int sbi_platform_timer_init(const struct sbi_platform *plat, bool cold_boot) { - if (plat && plat->timer_init) - return plat->timer_init(cold_boot); + if (plat && sbi_platform_ops(plat)->timer_init) + return sbi_platform_ops(plat)->timer_init(cold_boot); return 0; } @@ -439,8 +452,8 @@ static inline int sbi_platform_timer_init(const struct sbi_platform *plat, static inline int sbi_platform_system_reboot(const struct sbi_platform *plat, u32 type) { - if (plat && plat->system_reboot) - return plat->system_reboot(type); + if (plat && sbi_platform_ops(plat)->system_reboot) + return sbi_platform_ops(plat)->system_reboot(type); return 0; } @@ -455,8 +468,8 @@ static inline int sbi_platform_system_reboot(const struct sbi_platform *plat, static inline int sbi_platform_system_shutdown(const struct sbi_platform *plat, u32 type) { - if (plat && plat->system_shutdown) - return plat->system_shutdown(type); + if (plat && sbi_platform_ops(plat)->system_shutdown) + return sbi_platform_ops(plat)->system_shutdown(type); return 0; } |