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| author | Xiang W <wxjstz@126.com> | 2023-04-14 09:32:47 +0800 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2023-04-14 13:45:30 +0530 |
| commit | bf40e07f6f24a9c3ed08cfeb730d4e62ba3e215b (patch) | |
| tree | 285c00a20564493ffd411589cd28c774cbcf09e3 /include | |
| parent | 80078ab088c34aafce52f0c0d4d1e367da146b9c (diff) | |
| download | opensbi-bf40e07f6f24a9c3ed08cfeb730d4e62ba3e215b.zip opensbi-bf40e07f6f24a9c3ed08cfeb730d4e62ba3e215b.tar.gz opensbi-bf40e07f6f24a9c3ed08cfeb730d4e62ba3e215b.tar.bz2 | |
lib: sbi: Optimize sbi_tlb queue waiting
When tlb_fifo is full, it will wait and affect the ipi update to
other harts. This patch is optimized.
Signed-off-by: Xiang W <wxjstz@126.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Tested-by: Anup Patel <anup@brainfault.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/sbi/sbi_ipi.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/sbi/sbi_ipi.h b/include/sbi/sbi_ipi.h index f384e74..c64f422 100644 --- a/include/sbi/sbi_ipi.h +++ b/include/sbi/sbi_ipi.h @@ -30,6 +30,12 @@ struct sbi_ipi_device { void (*ipi_clear)(u32 target_hart); }; +enum sbi_ipi_update_type { + SBI_IPI_UPDATE_SUCCESS, + SBI_IPI_UPDATE_BREAK, + SBI_IPI_UPDATE_RETRY, +}; + struct sbi_scratch; /** IPI event operations or callbacks */ @@ -41,6 +47,10 @@ struct sbi_ipi_event_ops { * Update callback to save/enqueue data for remote HART * Note: This is an optional callback and it is called just before * triggering IPI to remote HART. + * @return < 0, error or failure + * @return SBI_IPI_UPDATE_SUCCESS, success + * @return SBI_IPI_UPDATE_BREAK, break IPI, done on local hart + * @return SBI_IPI_UPDATE_RETRY, need retry */ int (* update)(struct sbi_scratch *scratch, struct sbi_scratch *remote_scratch, |