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lib: sbi: Extend sbi_hartmask to support both hartid and hartindex

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Currently, the sbi_hartmask is indexed by hartid which puts a
limit on hartid to be less than SBI_HARTMASK_MAX_BITS.

We extend the sbi_hartmask implementation to use hartindex and
support updating sbi_hartmask using hartid. This removes the
limit on hartid and existing code works largely unmodified.

Signed-off-by: Xiang W <wxjstz@126.com>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
This commit is contained in:
Xiang W
2023-08-31 11:39:30 +08:00
committed by Anup Patel
parent e6125c3c4f
commit 296e70d69d
7 changed files with 105 additions and 60 deletions
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10
lib/sbi/sbi_ipi.c
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@@ -101,7 +101,7 @@ int sbi_ipi_send_many(ulong hmask, ulong hbase, u32 event, void *data)
{
int rc;
bool retry_needed;
ulong i, m;
ulong i, j, m;
struct sbi_hartmask target_mask = {0};
struct sbi_domain *dom = sbi_domain_thishart_ptr();
struct sbi_scratch *scratch = sbi_scratch_thishart_ptr();
@@ -115,14 +115,14 @@ int sbi_ipi_send_many(ulong hmask, ulong hbase, u32 event, void *data)
for (i = hbase; m; i++, m >>= 1) {
if (m & 1UL)
sbi_hartmask_set_hart(i, &target_mask);
sbi_hartmask_set_hartid(i, &target_mask);
}
} else {
hbase = 0;
while (!sbi_hsm_hart_interruptible_mask(dom, hbase, &m)) {
for (i = hbase; m; i++, m >>= 1) {
if (m & 1UL)
sbi_hartmask_set_hart(i, &target_mask);
sbi_hartmask_set_hartid(i, &target_mask);
}
hbase += BITS_PER_LONG;
}
@@ -131,12 +131,12 @@ int sbi_ipi_send_many(ulong hmask, ulong hbase, u32 event, void *data)
/* Send IPIs */
do {
retry_needed = false;
sbi_hartmask_for_each_hart(i, &target_mask) {
sbi_hartmask_for_each_hart(i, j, &target_mask) {
rc = sbi_ipi_send(scratch, i, event, data);
if (rc == SBI_IPI_UPDATE_RETRY)
retry_needed = true;
else
sbi_hartmask_clear_hart(i, &target_mask);
sbi_hartmask_clear_hartid(i, &target_mask);
}
} while (retry_needed);