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lib: sbi_hart: Store PMP granularity as log base 2

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This minimizes the need to call log2roundup() to recover the log value.

Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Samuel Holland
2023-11-22 11:44:04 -08:00
committed by Anup Patel
parent 07419ec84b
commit 93da66b7d4
3 changed files with 19 additions and 19 deletions
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4
include/sbi/sbi_hart.h
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@@ -73,7 +73,7 @@ struct sbi_hart_features {
unsigned long extensions[BITS_TO_LONGS(SBI_HART_EXT_MAX)];
unsigned int pmp_count;
unsigned int pmp_addr_bits;
unsigned long pmp_gran;
unsigned int pmp_log2gran;
unsigned int mhpm_mask;
unsigned int mhpm_bits;
};
@@ -93,7 +93,7 @@ unsigned int sbi_hart_mhpm_mask(struct sbi_scratch *scratch);
void sbi_hart_delegation_dump(struct sbi_scratch *scratch,
const char *prefix, const char *suffix);
unsigned int sbi_hart_pmp_count(struct sbi_scratch *scratch);
unsigned long sbi_hart_pmp_granularity(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_mhpm_bits(struct sbi_scratch *scratch);
int sbi_hart_pmp_configure(struct sbi_scratch *scratch);