From cd057667585411fbecc0c140727177d7d707c63a Mon Sep 17 00:00:00 2001 From: Jianmin Lv Date: Wed, 20 Jul 2022 18:51:24 +0800 Subject: [PATCH] LoongArch: Use ACPI_GENERIC_GSI for gsi handling For LoongArch, generic gsi code(driver/acpi/irq.c) can be reused after following patchs: APCI: irq: Add support for multiple GSI domains ACPI: irq: Allow acpi_gsi_to_irq() to have an arch-specific fallback So, config ACPI_GENERIC_GSI for LoongArch with removing the gsi code in arch directory. Signed-off-by: Jianmin Lv Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/1658314292-35346-6-git-send-email-lvjianmin@loongson.cn --- arch/loongarch/Kconfig | 1 + arch/loongarch/kernel/acpi.c | 65 ------------------------------------ 2 files changed, 1 insertion(+), 65 deletions(-) diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig index 1920d52653b41..fb1e73adbd1db 100644 --- a/arch/loongarch/Kconfig +++ b/arch/loongarch/Kconfig @@ -2,6 +2,7 @@ config LOONGARCH bool default y + select ACPI_GENERIC_GSI if ACPI select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI select ARCH_BINFMT_ELF_STATE select ARCH_ENABLE_MEMORY_HOTPLUG diff --git a/arch/loongarch/kernel/acpi.c b/arch/loongarch/kernel/acpi.c index bb729ee8a2370..03aa14581d0a2 100644 --- a/arch/loongarch/kernel/acpi.c +++ b/arch/loongarch/kernel/acpi.c @@ -25,7 +25,6 @@ EXPORT_SYMBOL(acpi_pci_disabled); int acpi_strict = 1; /* We have no workarounds on LoongArch */ int num_processors; int disabled_cpus; -enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PLATFORM; u64 acpi_saved_sp; @@ -33,70 +32,6 @@ u64 acpi_saved_sp; #define PREFIX "ACPI: " -int acpi_gsi_to_irq(u32 gsi, unsigned int *irqp) -{ - if (irqp != NULL) - *irqp = acpi_register_gsi(NULL, gsi, -1, -1); - return (*irqp >= 0) ? 0 : -EINVAL; -} -EXPORT_SYMBOL_GPL(acpi_gsi_to_irq); - -int acpi_isa_irq_to_gsi(unsigned int isa_irq, u32 *gsi) -{ - if (gsi) - *gsi = isa_irq; - return 0; -} - -/* - * success: return IRQ number (>=0) - * failure: return < 0 - */ -int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity) -{ - struct irq_fwspec fwspec; - - switch (gsi) { - case GSI_MIN_CPU_IRQ ... GSI_MAX_CPU_IRQ: - fwspec.fwnode = liointc_domain->fwnode; - fwspec.param[0] = gsi - GSI_MIN_CPU_IRQ; - fwspec.param_count = 1; - - return irq_create_fwspec_mapping(&fwspec); - - case GSI_MIN_LPC_IRQ ... GSI_MAX_LPC_IRQ: - if (!pch_lpc_domain) - return -EINVAL; - - fwspec.fwnode = pch_lpc_domain->fwnode; - fwspec.param[0] = gsi - GSI_MIN_LPC_IRQ; - fwspec.param[1] = acpi_dev_get_irq_type(trigger, polarity); - fwspec.param_count = 2; - - return irq_create_fwspec_mapping(&fwspec); - - case GSI_MIN_PCH_IRQ ... GSI_MAX_PCH_IRQ: - if (!pch_pic_domain[0]) - return -EINVAL; - - fwspec.fwnode = pch_pic_domain[0]->fwnode; - fwspec.param[0] = gsi - GSI_MIN_PCH_IRQ; - fwspec.param[1] = IRQ_TYPE_LEVEL_HIGH; - fwspec.param_count = 2; - - return irq_create_fwspec_mapping(&fwspec); - } - - return -EINVAL; -} -EXPORT_SYMBOL_GPL(acpi_register_gsi); - -void acpi_unregister_gsi(u32 gsi) -{ - -} -EXPORT_SYMBOL_GPL(acpi_unregister_gsi); - void __init __iomem * __acpi_map_table(unsigned long phys, unsigned long size) { -- 2.39.5