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| author | Anup Patel <anup.patel@wdc.com> | 2021-02-19 07:24:05 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2021-03-03 11:24:50 +0300 |
| commit | 50d4fde1c5a4ceb063d7f9a402769fb5be6d59ad (patch) | |
| tree | 0590cebdd9fea2041c60f665797036270e874f94 /lib/sbi/sbi_ipi.c | |
| parent | b9cf617a9f15168e109a9c95989093b36b4f0135 (diff) | |
| download | opensbi-50d4fde1c5a4ceb063d7f9a402769fb5be6d59ad.tar.xz | |
lib: Remove redundant sbi_platform_ipi_clear() calls
The sbi_platform_ipi_clear() called from wait_for_coldboot() and
sbi_hsm_hart_wait() is redundant because IPI will be automatically
cleared by sbi_platform_ipi_init() called from sbi_ipi_init().
Further, wait_for_coldboot() is common for warm startup and warm
resume path so the sbi_platform_ipi_clear() called in warm resume
path cause resuming HART to miss an IPI injected other HART to
wakeup the HART.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Diffstat (limited to 'lib/sbi/sbi_ipi.c')
| -rw-r--r-- | lib/sbi/sbi_ipi.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/sbi/sbi_ipi.c b/lib/sbi/sbi_ipi.c index a3a6ce6..b50735e 100644 --- a/lib/sbi/sbi_ipi.c +++ b/lib/sbi/sbi_ipi.c @@ -230,7 +230,10 @@ int sbi_ipi_init(struct sbi_scratch *scratch, bool cold_boot) ipi_data = sbi_scratch_offset_ptr(scratch, ipi_data_off); ipi_data->ipi_type = 0x00; - /* Platform init */ + /* + * Initialize platform IPI support. This will also clear any + * pending IPIs for current/calling HART. + */ ret = sbi_platform_ipi_init(sbi_platform_ptr(scratch), cold_boot); if (ret) return ret; |