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riscv: Avoid calling sbi_clear_ipi()

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There is no need for S-mode U-Boot to call sbi_clear_ipi() as it
can be cleared directly from S-mode. This saves some cycles.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Lukas Auer <lukas@auer.io>
This commit is contained in:
Bin Meng 2020-03-06 00:44:17 -08:00 committed by Andes
parent fe13692e23
commit f295e00c61
1 changed files with 2 additions and 1 deletions
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3
arch/riscv/lib/sbi_ipi.c
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@ -5,6 +5,7 @@
*/ */
#include <common.h> #include <common.h>
#include <asm/encoding.h>
#include <asm/sbi.h> #include <asm/sbi.h>
int riscv_send_ipi(int hart) int riscv_send_ipi(int hart)
@ -19,7 +20,7 @@ int riscv_send_ipi(int hart)
int riscv_clear_ipi(int hart) int riscv_clear_ipi(int hart)
{ {
sbi_clear_ipi(); csr_clear(CSR_SIP, SIP_SSIP);
return 0; return 0;
} }