From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Guo Ren <ren_guo@c-sky.com>, Marc Zyngier <marc.zyngier@arm.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 5.1 04/39] irqchip/irq-csky-mpintc: Support auto irq deliver to all cpus
Date: Tue, 2 Jul 2019 22:14:39 -0400 [thread overview]
Message-ID: <20190703021514.17727-4-sashal@kernel.org> (raw)
In-Reply-To: <20190703021514.17727-1-sashal@kernel.org>
From: Guo Ren <ren_guo@c-sky.com>
[ Upstream commit db56c5128e6625cb16efc4910b60627e46f608e3 ]
The csky,mpintc could deliver a external irq to one cpu or all cpus, but
it couldn't deliver a external irq to a group of cpus with cpu_mask. So
we only use auto deliver mode when affinity mask_val is equal to
cpu_present_mask.
There is no limitation for only two cpus in SMP system.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/irqchip/irq-csky-mpintc.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/irqchip/irq-csky-mpintc.c b/drivers/irqchip/irq-csky-mpintc.c
index c67c961ab6cc..a4c1aacba1ff 100644
--- a/drivers/irqchip/irq-csky-mpintc.c
+++ b/drivers/irqchip/irq-csky-mpintc.c
@@ -89,8 +89,19 @@ static int csky_irq_set_affinity(struct irq_data *d,
if (cpu >= nr_cpu_ids)
return -EINVAL;
- /* Enable interrupt destination */
- cpu |= BIT(31);
+ /*
+ * The csky,mpintc could support auto irq deliver, but it only
+ * could deliver external irq to one cpu or all cpus. So it
+ * doesn't support deliver external irq to a group of cpus
+ * with cpu_mask.
+ * SO we only use auto deliver mode when affinity mask_val is
+ * equal to cpu_present_mask.
+ *
+ */
+ if (cpumask_equal(mask_val, cpu_present_mask))
+ cpu = 0;
+ else
+ cpu |= BIT(31);
writel_relaxed(cpu, INTCG_base + INTCG_CIDSTR + offset);
--
2.20.1
next prev parent reply other threads:[~2019-07-03 2:15 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-03 2:14 [PATCH AUTOSEL 5.1 01/39] ARM: dts: meson8: fix GPU interrupts and drop an undocumented property Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 02/39] ARM: dts: meson8b: fix the operating voltage of the Mali GPU Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 03/39] idr: Fix idr_get_next race with idr_remove Sasha Levin
2019-07-03 2:14 ` Sasha Levin [this message]
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 05/39] irqchip/gic-v3-its: Fix command queue pointer comparison bug Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 06/39] clk: ti: clkctrl: Fix returning uninitialized data Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 07/39] efi/bgrt: Drop BGRT status field reserved bits check Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 08/39] arm64: dts: ls1028a: Fix CPU idle fail Sasha Levin
2019-07-11 5:04 ` Ran Wang
2019-07-11 6:43 ` Greg KH
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 09/39] selftests/powerpc: Add test of fork with mapping above 512TB Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 10/39] perf/core: Fix perf_sample_regs_user() mm check Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 11/39] ARM: dts: gemini Fix up DNS-313 compatible string Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 12/39] ARM: omap2: remove incorrect __init annotation Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 13/39] afs: Fix uninitialised spinlock afs_volume::cb_break_lock Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 14/39] x86/efi: fix a -Wtype-limits compilation warning Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 15/39] x86/apic: Fix integer overflow on 10 bit left shift of cpu_khz Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 16/39] be2net: fix link failure after ethtool offline test Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 17/39] ppp: mppe: Add softdep to arc4 Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 18/39] net: stmmac: fixed new system time seconds value calculation Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 19/39] net: stmmac: set IC bit when transmitting frames with HW timestamp Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 20/39] sis900: fix TX completion Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 21/39] ARM: dts: imx6ul: fix PWM[1-4] interrupts Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 22/39] qmi_wwan: Fix out-of-bounds read Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 23/39] pinctrl: mcp23s08: Fix add_data and irqchip_add_nested call order Sasha Levin
2019-07-03 2:14 ` [PATCH AUTOSEL 5.1 24/39] pinctrl: ocelot: fix gpio direction for pins after 31 Sasha Levin
2019-07-03 2:15 ` [PATCH AUTOSEL 5.1 25/39] pinctrl: ocelot: fix pinmuxing " Sasha Levin
2019-07-03 2:15 ` [PATCH AUTOSEL 5.1 26/39] dm table: don't copy from a NULL pointer in realloc_argv() Sasha Levin
2019-07-03 2:15 ` [PATCH AUTOSEL 5.1 27/39] dm verity: use message limit for data block corruption message Sasha Levin
2019-07-03 2:15 ` [PATCH AUTOSEL 5.1 28/39] x86/boot/64: Fix crash if kernel image crosses page table boundary Sasha Levin
2019-07-03 2:15 ` [PATCH AUTOSEL 5.1 29/39] x86/boot/64: Add missing fixup_pointer() for next_early_pgt access Sasha Levin
2019-07-03 2:15 ` [PATCH AUTOSEL 5.1 30/39] HID: chicony: add another quirk for PixArt mouse Sasha Levin
2019-07-03 2:15 ` [PATCH AUTOSEL 5.1 31/39] HID: uclogic: Add support for Huion HS64 tablet Sasha Levin
2019-07-03 2:15 ` [PATCH AUTOSEL 5.1 32/39] HID: multitouch: Add pointstick support for ALPS Touchpad Sasha Levin
2019-07-03 2:15 ` [PATCH AUTOSEL 5.1 33/39] pinctrl: mediatek: Ignore interrupts that are wake only during resume Sasha Levin
2019-07-03 2:15 ` [PATCH AUTOSEL 5.1 34/39] net: aquantia: fix vlans not working over bridged network Sasha Levin
2019-07-03 2:15 ` [PATCH AUTOSEL 5.1 35/39] cpu/hotplug: Fix out-of-bounds read when setting fail state Sasha Levin
2019-07-03 2:15 ` [PATCH AUTOSEL 5.1 36/39] pinctrl: mediatek: Update cur_mask in mask/mask ops Sasha Levin
2019-07-03 2:15 ` [PATCH AUTOSEL 5.1 37/39] mm/oom_kill.c: fix uninitialized oc->constraint Sasha Levin
2019-07-03 2:15 ` [PATCH AUTOSEL 5.1 38/39] fork,memcg: alloc_thread_stack_node needs to set tsk->stack Sasha Levin
2019-07-03 2:15 ` [PATCH AUTOSEL 5.1 39/39] linux/kernel.h: fix overflow for DIV_ROUND_UP_ULL Sasha Levin
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