Firmware/opensbi
8
0
Fork 0
forked from Mirrors/opensbi
Code Pull Requests Activity

lib: Introduce sbi_ipi_send_smode() API

Browse Source 
Instead of directly calling sbi_ipi_send_many(), we introduce
sbi_ipi_send_smode() for injecting S-mode software interrupts.

This way in future we can assign any IPI event number for S-mode
IPIs within sbi_ipi.c only.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
This commit is contained in:
Anup Patel
2020-01-15 11:02:14 +05:30
committed by Anup Patel
parent 046cc16e8b
commit 3d2aaac69a
3 changed files with 10 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
lib/sbi/sbi_ecall.c
View File

@@ -155,8 +155,7 @@ int sbi_ecall_ipi_handler(struct sbi_scratch *scratch, unsigned long funcid,
int ret = 0;
if (funcid == SBI_EXT_IPI_SEND_IPI)
ret = sbi_ipi_send_many(scratch, args[0], args[1],
SBI_IPI_EVENT_SOFT, NULL);
ret = sbi_ipi_send_smode(scratch, args[0], args[1]);
else
ret = SBI_ENOTSUPP;
@@ -282,8 +281,7 @@ int sbi_ecall_0_1_handler(struct sbi_scratch *scratch, unsigned long extid,
ret = sbi_load_hart_mask_unpriv(scratch, (ulong *)args[0],
&hmask, out_trap);
if (ret != SBI_ETRAP)
ret = sbi_ipi_send_many(scratch, hmask, 0,
SBI_IPI_EVENT_SOFT, NULL);
ret = sbi_ipi_send_smode(scratch, hmask, 0);
break;
case SBI_EXT_0_1_REMOTE_FENCE_I:
tlb_info.start = 0;

6
lib/sbi/sbi_ipi.c
View File

@@ -101,6 +101,12 @@ int sbi_ipi_send_many(struct sbi_scratch *scratch, ulong hmask, ulong hbase,
return 0;
}
int sbi_ipi_send_smode(struct sbi_scratch *scratch, ulong hmask, ulong hbase)
{
return sbi_ipi_send_many(scratch, hmask, hbase,
SBI_IPI_EVENT_SOFT, NULL);
}
void sbi_ipi_clear_smode(struct sbi_scratch *scratch)
{
csr_clear(CSR_MIP, MIP_SSIP);