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lib: sbi_hart_pmp: make sbi_hart_pmp_fence public

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sbi_hart_pmp_fence can now be utilized by other hart-protection
implementation.

Signed-off-by: Bo Gan <ganboing@gmail.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20251218104243.562667-2-ganboing@gmail.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Bo Gan
2025-12-18 02:42:37 -08:00
committed by Anup Patel
parent 111738090c
commit 707aa3231a
2 changed files with 2 additions and 1 deletions
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1
include/sbi/sbi_hart_pmp.h
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@@ -15,6 +15,7 @@ unsigned int sbi_hart_pmp_count(struct sbi_scratch *scratch);
unsigned int sbi_hart_pmp_log2gran(struct sbi_scratch *scratch); unsigned int sbi_hart_pmp_log2gran(struct sbi_scratch *scratch);
unsigned int sbi_hart_pmp_addrbits(struct sbi_scratch *scratch); unsigned int sbi_hart_pmp_addrbits(struct sbi_scratch *scratch);
bool sbi_hart_smepmp_is_fw_region(unsigned int pmp_idx); bool sbi_hart_smepmp_is_fw_region(unsigned int pmp_idx);
void sbi_hart_pmp_fence(void);
int sbi_hart_pmp_init(struct sbi_scratch *scratch); int sbi_hart_pmp_init(struct sbi_scratch *scratch);
#endif #endif

2
lib/sbi/sbi_hart_pmp.c
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@@ -62,7 +62,7 @@ bool sbi_hart_smepmp_is_fw_region(unsigned int pmp_idx)
return bitmap_test(fw_smepmp_ids, pmp_idx) ? true : false; return bitmap_test(fw_smepmp_ids, pmp_idx) ? true : false;
} }
static void sbi_hart_pmp_fence(void) void sbi_hart_pmp_fence(void)
{ {
/* /*
* As per section 3.7.2 of privileged specification v1.12, * As per section 3.7.2 of privileged specification v1.12,