MIPS: smp-cps: Enable all hardware interrupts on secondary CPUs

abrestic · ralfbaechle · commit ff1e29ade4c6 · 2014-11-24T07:44:53.000+01:00
Currently interrupt vectors 2 and 5 are left disabled on secondary CPUs. Since systems using CPS must also have a GIC, which is responsible for routing all external interrupts and can map them to any hardware interrupt vector, enable the remaining vectors. The two software interrupt vectors are left disabled since they are not used with CPS. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Reviewed-by: Qais Yousef <qais.yousef@imgtec.com> Tested-by: Qais Yousef <qais.yousef@imgtec.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Jeffrey Deans <jeffrey.deans@imgtec.com> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: Jonas Gorski <jogo@openwrt.org> Cc: John Crispin <blogic@openwrt.org> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/7803/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c
@@ -273,8 +273,8 @@ static void cps_init_secondary(void)
 	if (cpu_has_mipsmt)
 		dmt();
 
-	change_c0_status(ST0_IM, STATUSF_IP3 | STATUSF_IP4 |
-				 STATUSF_IP6 | STATUSF_IP7);
+	change_c0_status(ST0_IM, STATUSF_IP2 | STATUSF_IP3 | STATUSF_IP4 |
+				 STATUSF_IP5 | STATUSF_IP6 | STATUSF_IP7);
 }
 
 static void cps_smp_finish(void)

Original file line number	Diff line number	Diff line change
`@@ -273,8 +273,8 @@ static void cps_init_secondary(void)`
`273`	`273`	`if (cpu_has_mipsmt)`
`274`	`274`	`dmt();`
`275`	`275`
`276`		`- change_c0_status(ST0_IM, STATUSF_IP3 \| STATUSF_IP4 \|`
`277`		`- STATUSF_IP6 \| STATUSF_IP7);`
	`276`	`+ change_c0_status(ST0_IM, STATUSF_IP2 \| STATUSF_IP3 \| STATUSF_IP4 \|`
	`277`	`+ STATUSF_IP5 \| STATUSF_IP6 \| STATUSF_IP7);`
`278`	`278`	`}`
`279`	`279`
`280`	`280`	`static void cps_smp_finish(void)`