Messages in this thread Patch in this message | | | From | Paul Burton <> | Subject | [PATCH 2/3] MIPS: smp-cps: Clear Status IPL field when using EIC | Date | Tue, 17 May 2016 15:31:05 +0100 |
| |
When using an external interrupt controller (EIC) the interrupt mask bits in the cop0 Status register are reused for the Interrupt Priority Level, and any interrupts with a priority lower than the field will be ignored. Clear the field to 0 by default such that all interrupts are serviced.
Signed-off-by: Paul Burton <paul.burton@imgtec.com> ---
arch/mips/kernel/smp-cps.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c index 253e140..f19f0d3 100644 --- a/arch/mips/kernel/smp-cps.c +++ b/arch/mips/kernel/smp-cps.c @@ -307,8 +307,12 @@ static void cps_init_secondary(void) if (cpu_has_mipsmt) dmt(); - change_c0_status(ST0_IM, STATUSF_IP2 | STATUSF_IP3 | STATUSF_IP4 | - STATUSF_IP5 | STATUSF_IP6 | STATUSF_IP7); + if (cpu_has_veic) + clear_c0_status(ST0_IM); + else + change_c0_status(ST0_IM, STATUSF_IP2 | STATUSF_IP3 | + STATUSF_IP4 | STATUSF_IP5 | + STATUSF_IP6 | STATUSF_IP7); } static void cps_smp_finish(void) -- 2.8.2
| |