diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/sbi/sbi_platform.h | 26 | ||||
| -rw-r--r-- | include/sbi/sbi_tlb.h | 1 |
2 files changed, 24 insertions, 3 deletions
diff --git a/include/sbi/sbi_platform.h b/include/sbi/sbi_platform.h index 97195c41..7f5dd29b 100644 --- a/include/sbi/sbi_platform.h +++ b/include/sbi/sbi_platform.h @@ -30,10 +30,14 @@ #define SBI_PLATFORM_HART_STACK_SIZE_OFFSET (0x54) /** Offset of disabled_hart_mask in struct sbi_platform */ #define SBI_PLATFORM_DISABLED_HART_OFFSET (0x58) +/** Offset of tlb_range_flush_limit in struct sbi_platform */ +#define SBI_PLATFORM_TLB_RANGE_FLUSH_LIMIT_OFFSET (0x60) /** Offset of platform_ops_addr in struct sbi_platform */ -#define SBI_PLATFORM_OPS_OFFSET (0x60) +#define SBI_PLATFORM_OPS_OFFSET (0x68) /** Offset of firmware_context in struct sbi_platform */ -#define SBI_PLATFORM_FIRMWARE_CONTEXT_OFFSET (0x60 + __SIZEOF_POINTER__) +#define SBI_PLATFORM_FIRMWARE_CONTEXT_OFFSET (0x68 + __SIZEOF_POINTER__) + +#define SBI_PLATFORM_TLB_RANGE_FLUSH_LIMIT_DEFAULT (1UL << 12) #ifndef __ASSEMBLY__ @@ -134,6 +138,8 @@ struct sbi_platform { u32 hart_stack_size; /** Mask representing the set of disabled HARTs */ u64 disabled_hart_mask; + /* Maximum value of tlb flush range request*/ + u64 tlb_range_flush_limit; /** Pointer to sbi platform operations */ unsigned long platform_ops_addr; /** Pointer to system firmware specific context */ @@ -199,6 +205,22 @@ static inline bool sbi_platform_hart_disabled(const struct sbi_platform *plat, } /** + * Get platform specific tlb range flush maximum value. Any request with size + * higher than this is upgraded to a full flush. + * + * @param plat pointer to struct sbi_platform + * + * @return tlb range flush limit value. Returns a default (page size) if not + * defined by platform. + */ +static inline u64 sbi_platform_tlbr_flush_limit(const struct sbi_platform *plat) +{ + if (plat) + return plat->tlb_range_flush_limit; + return SBI_PLATFORM_TLB_RANGE_FLUSH_LIMIT_DEFAULT; +} + +/** * Get total number of HARTs supported by the platform * * @param plat pointer to struct sbi_platform diff --git a/include/sbi/sbi_tlb.h b/include/sbi/sbi_tlb.h index cd52c12f..d1d6f225 100644 --- a/include/sbi/sbi_tlb.h +++ b/include/sbi/sbi_tlb.h @@ -16,7 +16,6 @@ /* clang-format off */ #define SBI_TLB_FLUSH_ALL ((unsigned long)-1) -#define SBI_TLB_FLUSH_MAX_SIZE (1UL << 12) /* clang-format on */ |