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lib: sbi_ipi: Use sbi_hsm_hart_started_mask() API

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This patch replaces use of sbi_hart_available_mask() API with
sbi_hsm_hart_started_mask() API.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Anup Patel
2020-03-02 16:21:38 +05:30
committed by Anup Patel
parent 466fecb957
commit 9aad831e87
1 changed files with 21 additions and 23 deletions
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44
lib/sbi/sbi_ipi.c
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@@ -37,8 +37,7 @@ static int sbi_ipi_send(struct sbi_scratch *scratch, u32 remote_hartid,
const struct sbi_ipi_event_ops *ipi_ops;
if ((SBI_IPI_EVENT_MAX <= event) ||
!ipi_ops_array[event] ||
sbi_platform_hart_disabled(plat, remote_hartid))
!ipi_ops_array[event])
return SBI_EINVAL;
ipi_ops = ipi_ops_array[event];
@@ -74,33 +73,32 @@ static int sbi_ipi_send(struct sbi_scratch *scratch, u32 remote_hartid,
int sbi_ipi_send_many(struct sbi_scratch *scratch, ulong hmask, ulong hbase,
u32 event, void *data)
{
int rc;
ulong i, m;
ulong mask = sbi_hart_available_mask();
ulong tempmask;
unsigned long last_bit = __fls(mask);
if (hbase != -1UL) {
if (hbase > last_bit)
/* hart base is not available */
return SBI_EINVAL;
/**
* FIXME: This check is valid only ULONG size. This is okay for
* now as avaialble hart mask can support upto ULONG size only.
*/
tempmask = hmask << hbase;
tempmask = ~mask & tempmask;
if (tempmask)
/* at least one of the hart in hmask is not available */
return SBI_EINVAL;
rc = sbi_hsm_hart_started_mask(scratch, hbase, &m);
if (rc)
return rc;
m &= hmask;
mask &= (hmask << hbase);
/* Send IPIs */
for (i = hbase; m; i++, m >>= 1) {
if (m & 1UL)
sbi_ipi_send(scratch, i, event, data);
}
} else {
hbase = 0;
while (!sbi_hsm_hart_started_mask(scratch, hbase, &m)) {
/* Send IPIs */
for (i = hbase; m; i++, m >>= 1) {
if (m & 1UL)
sbi_ipi_send(scratch, i, event, data);
}
hbase += BITS_PER_LONG;
}
}
/* Send IPIs to every other hart on the set */
for (i = 0, m = mask; m; i++, m >>= 1)
if (m & 1UL)
sbi_ipi_send(scratch, i, event, data);
return 0;
}