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[RFC,1/1] MIPS: smp-mt: enable all hardware interrupts on second VPE

Message ID 20210606181525.761333-2-olek2@wp.pl (mailing list archive)
State RFC
Headers show
Series MIPS: smp-mt: enable all hardware interrupts on second VPE | expand

Commit Message

Aleksander Jan Bajkowski June 6, 2021, 6:15 p.m. UTC
This patch is needed to handle interrupts by the second VPE on Lantiq.
It seems the Lantiq SoC is using all the hardware interrupt lines.
Currently changing smp_affinity to the second VPE hangs interrupts.

Tested on lantiq xRX200 and xRX330 (MIPS 34Kc core).

Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
---
 arch/mips/kernel/smp-mt.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
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Patch

diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c
index 5f04a0141068..f21cd0eb1fa7 100644
--- a/arch/mips/kernel/smp-mt.c
+++ b/arch/mips/kernel/smp-mt.c
@@ -113,8 +113,7 @@  static void vsmp_init_secondary(void)
 					 STATUSF_IP4 | STATUSF_IP5 |
 					 STATUSF_IP6 | STATUSF_IP7);
 	else
-		change_c0_status(ST0_IM, STATUSF_IP0 | STATUSF_IP1 |
-					 STATUSF_IP6 | STATUSF_IP7);
+		set_c0_status(ST0_IM);
 }
 
 static void vsmp_smp_finish(void)