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linux_dsm_epyc7002/arch/mips/loongson64
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Huacai Chen 360fe725f8
MIPS: Loongson-3: Fix BRIDGE irq delivery problem 
After commit e509bd7da1 ("genirq: Allow migration of chained
interrupts by installing default action") Loongson-3 fails at here:

setup_irq(LOONGSON_HT1_IRQ, &cascade_irqaction);

This is because both chained_action and cascade_irqaction don't have
IRQF_SHARED flag. This will cause Loongson-3 resume fails because HPET
timer interrupt can't be delivered during S3. So we set the irqchip of
the chained irq to loongson_irq_chip which doesn't disable the chained
irq in CP0.Status.

Cc: stable@vger.kernel.org
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/20434/
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Cc: Huacai Chen <chenhuacai@gmail.com>
2018-10-15 23:11:14 -07:00
..
common MIPS: Loongon64: DMA functions cleanup 2018-08-28 09:47:14 -07:00
fuloong-2e MIPS: Loongon64: DMA functions cleanup 2018-08-28 09:47:14 -07:00
lemote-2f MIPS: Loongon64: DMA functions cleanup 2018-08-28 09:47:14 -07:00
loongson-3 MIPS: Loongson-3: Fix BRIDGE irq delivery problem 2018-10-15 23:11:14 -07:00
Kconfig MIPS: loongson64: use generic dma noncoherent ops 2018-06-24 09:27:27 -07:00
Makefile MIPS: Loongson: Naming style cleanup and rework 2015-06-21 21:53:59 +02:00
Platform MIPS: Loongson-3: Fix build error after ld-version.sh modification 2016-05-09 12:00:03 +02:00