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lib: sbi: Optimize sbi_tlb queue waiting

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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>
This commit is contained in:
Xiang W
2023-04-14 09:32:47 +08:00
committed by Anup Patel
parent 80078ab088
commit bf40e07f6f
3 changed files with 36 additions and 27 deletions
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10
include/sbi/sbi_ipi.h
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@@ -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,