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lib: sbi_scratch: Introduce sbi_scratch_last_hartid() API

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The patch adds sbi_scratch_last_hartid() API which returns
last HART id having a scratch space. We can use this new API
to optimize places where we iterate over HART id from 0 to
SBI_HARTMASK_MAX_BITS.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
This commit is contained in:
Anup Patel
2020-03-26 18:35:38 +05:30
committed by Anup Patel
parent 5b6957eed7
commit dd0f21c560
4 changed files with 13 additions and 4 deletions
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2
lib/sbi/sbi_init.c
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@@ -128,7 +128,7 @@ static void wake_coldboot_harts(struct sbi_scratch *scratch, u32 hartid)
coldboot_done = 1;
/* Send an IPI to all HARTs waiting for coldboot */
for (int i = 0; i < SBI_HARTMASK_MAX_BITS; i++) {
for (int i = 0; i <= sbi_scratch_last_hartid(); i++) {
if ((i != hartid) &&
sbi_hartmask_test_hart(i, &coldboot_wait_hmask))
sbi_platform_ipi_send(plat, i);