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lib: sbi_pmu: remove mhpm_count field in hart feature

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After supporting noncontigous hpm event and counters in opensbi, the
number of hpm counters can be calculated by the mhpm_mask. So this field
is unnecessary and can be removed to save some space.

Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
Reviewed-by: Anup Patel  <anup@brainfault.org>
This commit is contained in:
Inochi Amaoto
2023-08-11 08:24:43 +08:00
committed by Anup Patel
parent e7e73aa532
commit ee1f83ca84
5 changed files with 37 additions and 34 deletions
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16
include/sbi/sbi_bitops.h
View File

@@ -112,6 +112,22 @@ static inline unsigned long sbi_fls(unsigned long word)
return num;
}
/**
* sbi_popcount - find the number of set bit in a long word
* @word: the word to search
*/
static inline unsigned long sbi_popcount(unsigned long word)
{
unsigned long count = 0;
while (word) {
word &= word - 1;
count++;
}
return count;
}
#define for_each_set_bit(bit, addr, size) \
for ((bit) = find_first_bit((addr), (size)); \
(bit) < (size); \

2
include/sbi/sbi_hart.h
View File

@@ -69,7 +69,6 @@ struct sbi_hart_features {
unsigned int pmp_count;
unsigned int pmp_addr_bits;
unsigned long pmp_gran;
unsigned int mhpm_count;
unsigned int mhpm_mask;
unsigned int mhpm_bits;
};
@@ -85,7 +84,6 @@ static inline ulong sbi_hart_expected_trap_addr(void)
return (ulong)sbi_hart_expected_trap;
}
unsigned int sbi_hart_mhpm_count(struct sbi_scratch *scratch);
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);