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fa84f89395 ("irqchip/loongson-liointc: Fix build error for
LoongArch") replaced get_ebase_cpunum with physical processor
id from SMP facilities. However that breaks MIPS non-SMP build
and makes booting from other cores inpossible on non-SMP kernel.
Thus we revert get_ebase_cpunum back and use get_csr_cpuid for
LoongArch.
Fixes: fa84f89395 ("irqchip/loongson-liointc: Fix build error for LoongArch")
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220609175242.977-1-jiaxun.yang@flygoat.com
liointc driver is shared by MIPS and LoongArch, this patch adjust the
code to fix build error for LoongArch.
Acked-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Wherever possible, replace constructs that match either
generic_handle_irq(irq_find_mapping()) or
generic_handle_irq(irq_linear_revmap()) to a single call to
generic_handle_domain_irq().
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Add IO interrupt controller support for Loongson-2K1000, different
from the Loongson-3A series is that Loongson-2K1000 has 64 interrupt
sources, 0-31 correspond to the device tree liointc0 device node, and
the other correspond to liointc1 node.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Qing Zhang <zhangqing@loongson.cn>
Tested-by: Ming Wang <wangming01@loongson.cn>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
The purpose of separating loongson_system_configuration from boot_param.h
is to keep the other structure consistent with the firmware.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Qing Zhang <zhangqing@loongson.cn>
Acked-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
In gc->mask_cache bits, 1 means enabled and 0 means disabled, but in the
loongson-liointc driver mask_cache is misused by reverting its meaning.
This patch fix the bug and update the comments as well.
Fixes: dbb1522679 ("irqchip: Add driver for Loongson I/O Local Interrupt Controller")
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/1596099090-23516-4-git-send-email-chenhc@lemote.com
In the function liointc_set_type(), we need to call the function
irq_gc_unlock_irqrestore() before returning.
Fixes: dbb1522679 ("irqchip: Add driver for Loongson I/O Local Interrupt Controller")
Reported-by: Jianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1594087972-21715-8-git-send-email-yangtiezhu@loongson.cn
The 1.0 version of that controller has a bug that status bit
of LPC IRQ sometimes doesn't get set correctly.
So we can always blame LPC IRQ when spurious interrupt happens
at the parent interrupt line which LPC IRQ supposed to route
to.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Co-developed-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This controller appeared on Loongson family of chips as the primary
package interrupt source.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Co-developed-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
