android/android_kernel_samsung_sm8650
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

LoongArch: Use ACPI_GENERIC_GSI for gsi handling

Browse Source 
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 <lvjianmin@loongson.cn>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1658314292-35346-6-git-send-email-lvjianmin@loongson.cn
This commit is contained in:
Jianmin Lv 2022-07-20 18:51:24 +08:00 committed by Marc Zyngier
parent d319a299f4
commit cd05766758
2 changed files with 1 additions and 65 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/loongarch/Kconfig
View File

@ -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

65
arch/loongarch/kernel/acpi.c
View File

@ -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)
{