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-rw-r--r--drivers/irqchip/irq-loongarch-cpu.c30
-rw-r--r--drivers/irqchip/irq-loongson-eiointc.c62
-rw-r--r--drivers/irqchip/irq-loongson-pch-pic.c18
3 files changed, 69 insertions, 41 deletions
diff --git a/drivers/irqchip/irq-loongarch-cpu.c b/drivers/irqchip/irq-loongarch-cpu.c
index 741612ba6a52..fdec3e9cfacf 100644
--- a/drivers/irqchip/irq-loongarch-cpu.c
+++ b/drivers/irqchip/irq-loongarch-cpu.c
@@ -92,18 +92,16 @@ static const struct irq_domain_ops loongarch_cpu_intc_irq_domain_ops = {
.xlate = irq_domain_xlate_onecell,
};
-static int __init
-liointc_parse_madt(union acpi_subtable_headers *header,
- const unsigned long end)
+static int __init liointc_parse_madt(union acpi_subtable_headers *header,
+ const unsigned long end)
{
struct acpi_madt_lio_pic *liointc_entry = (struct acpi_madt_lio_pic *)header;
return liointc_acpi_init(irq_domain, liointc_entry);
}
-static int __init
-eiointc_parse_madt(union acpi_subtable_headers *header,
- const unsigned long end)
+static int __init eiointc_parse_madt(union acpi_subtable_headers *header,
+ const unsigned long end)
{
struct acpi_madt_eio_pic *eiointc_entry = (struct acpi_madt_eio_pic *)header;
@@ -112,16 +110,24 @@ eiointc_parse_madt(union acpi_subtable_headers *header,
static int __init acpi_cascade_irqdomain_init(void)
{
- acpi_table_parse_madt(ACPI_MADT_TYPE_LIO_PIC,
- liointc_parse_madt, 0);
- acpi_table_parse_madt(ACPI_MADT_TYPE_EIO_PIC,
- eiointc_parse_madt, 0);
+ int r;
+
+ r = acpi_table_parse_madt(ACPI_MADT_TYPE_LIO_PIC, liointc_parse_madt, 0);
+ if (r < 0)
+ return r;
+
+ r = acpi_table_parse_madt(ACPI_MADT_TYPE_EIO_PIC, eiointc_parse_madt, 0);
+ if (r < 0)
+ return r;
+
return 0;
}
static int __init cpuintc_acpi_init(union acpi_subtable_headers *header,
const unsigned long end)
{
+ int ret;
+
if (irq_domain)
return 0;
@@ -139,9 +145,9 @@ static int __init cpuintc_acpi_init(union acpi_subtable_headers *header,
set_handle_irq(&handle_cpu_irq);
acpi_set_irq_model(ACPI_IRQ_MODEL_LPIC, lpic_get_gsi_domain_id);
acpi_set_gsi_to_irq_fallback(lpic_gsi_to_irq);
- acpi_cascade_irqdomain_init();
+ ret = acpi_cascade_irqdomain_init();
- return 0;
+ return ret;
}
IRQCHIP_ACPI_DECLARE(cpuintc_v1, ACPI_MADT_TYPE_CORE_PIC,
diff --git a/drivers/irqchip/irq-loongson-eiointc.c b/drivers/irqchip/irq-loongson-eiointc.c
index 16e9af8d8b1e..ac04aeaa2d30 100644
--- a/drivers/irqchip/irq-loongson-eiointc.c
+++ b/drivers/irqchip/irq-loongson-eiointc.c
@@ -279,9 +279,6 @@ static void acpi_set_vec_parent(int node, struct irq_domain *parent, struct acpi
{
int i;
- if (cpu_has_flatmode)
- node = cpu_to_node(node * CORES_PER_EIO_NODE);
-
for (i = 0; i < MAX_IO_PICS; i++) {
if (node == vec_group[i].node) {
vec_group[i].parent = parent;
@@ -301,9 +298,8 @@ static struct irq_domain *acpi_get_vec_parent(int node, struct acpi_vector_group
return NULL;
}
-static int __init
-pch_pic_parse_madt(union acpi_subtable_headers *header,
- const unsigned long end)
+static int __init pch_pic_parse_madt(union acpi_subtable_headers *header,
+ const unsigned long end)
{
struct acpi_madt_bio_pic *pchpic_entry = (struct acpi_madt_bio_pic *)header;
unsigned int node = (pchpic_entry->address >> 44) & 0xf;
@@ -312,37 +308,51 @@ pch_pic_parse_madt(union acpi_subtable_headers *header,
if (parent)
return pch_pic_acpi_init(parent, pchpic_entry);
- return -EINVAL;
+ return 0;
}
-static int __init
-pch_msi_parse_madt(union acpi_subtable_headers *header,
- const unsigned long end)
+static int __init pch_msi_parse_madt(union acpi_subtable_headers *header,
+ const unsigned long end)
{
+ struct irq_domain *parent;
struct acpi_madt_msi_pic *pchmsi_entry = (struct acpi_madt_msi_pic *)header;
- struct irq_domain *parent = acpi_get_vec_parent(eiointc_priv[nr_pics - 1]->node, msi_group);
+ int node;
+
+ if (cpu_has_flatmode)
+ node = cpu_to_node(eiointc_priv[nr_pics - 1]->node * CORES_PER_EIO_NODE);
+ else
+ node = eiointc_priv[nr_pics - 1]->node;
+
+ parent = acpi_get_vec_parent(node, msi_group);
if (parent)
return pch_msi_acpi_init(parent, pchmsi_entry);
- return -EINVAL;
+ return 0;
}
static int __init acpi_cascade_irqdomain_init(void)
{
- acpi_table_parse_madt(ACPI_MADT_TYPE_BIO_PIC,
- pch_pic_parse_madt, 0);
- acpi_table_parse_madt(ACPI_MADT_TYPE_MSI_PIC,
- pch_msi_parse_madt, 1);
+ int r;
+
+ r = acpi_table_parse_madt(ACPI_MADT_TYPE_BIO_PIC, pch_pic_parse_madt, 0);
+ if (r < 0)
+ return r;
+
+ r = acpi_table_parse_madt(ACPI_MADT_TYPE_MSI_PIC, pch_msi_parse_madt, 1);
+ if (r < 0)
+ return r;
+
return 0;
}
int __init eiointc_acpi_init(struct irq_domain *parent,
struct acpi_madt_eio_pic *acpi_eiointc)
{
- int i, parent_irq;
+ int i, ret, parent_irq;
unsigned long node_map;
struct eiointc_priv *priv;
+ int node;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv)
@@ -380,15 +390,21 @@ int __init eiointc_acpi_init(struct irq_domain *parent,
parent_irq = irq_create_mapping(parent, acpi_eiointc->cascade);
irq_set_chained_handler_and_data(parent_irq, eiointc_irq_dispatch, priv);
- cpuhp_setup_state_nocalls(CPUHP_AP_IRQ_LOONGARCH_STARTING,
+ if (nr_pics == 1) {
+ cpuhp_setup_state_nocalls(CPUHP_AP_IRQ_LOONGARCH_STARTING,
"irqchip/loongarch/intc:starting",
eiointc_router_init, NULL);
+ }
- acpi_set_vec_parent(acpi_eiointc->node, priv->eiointc_domain, pch_group);
- acpi_set_vec_parent(acpi_eiointc->node, priv->eiointc_domain, msi_group);
- acpi_cascade_irqdomain_init();
-
- return 0;
+ if (cpu_has_flatmode)
+ node = cpu_to_node(acpi_eiointc->node * CORES_PER_EIO_NODE);
+ else
+ node = acpi_eiointc->node;
+ acpi_set_vec_parent(node, priv->eiointc_domain, pch_group);
+ acpi_set_vec_parent(node, priv->eiointc_domain, msi_group);
+ ret = acpi_cascade_irqdomain_init();
+
+ return ret;
out_free_handle:
irq_domain_free_fwnode(priv->domain_handle);
diff --git a/drivers/irqchip/irq-loongson-pch-pic.c b/drivers/irqchip/irq-loongson-pch-pic.c
index 03493cda65a3..679e2b68e6e9 100644
--- a/drivers/irqchip/irq-loongson-pch-pic.c
+++ b/drivers/irqchip/irq-loongson-pch-pic.c
@@ -328,9 +328,8 @@ int find_pch_pic(u32 gsi)
return -1;
}
-static int __init
-pch_lpc_parse_madt(union acpi_subtable_headers *header,
- const unsigned long end)
+static int __init pch_lpc_parse_madt(union acpi_subtable_headers *header,
+ const unsigned long end)
{
struct acpi_madt_lpc_pic *pchlpc_entry = (struct acpi_madt_lpc_pic *)header;
@@ -339,8 +338,12 @@ pch_lpc_parse_madt(union acpi_subtable_headers *header,
static int __init acpi_cascade_irqdomain_init(void)
{
- acpi_table_parse_madt(ACPI_MADT_TYPE_LPC_PIC,
- pch_lpc_parse_madt, 0);
+ int r;
+
+ r = acpi_table_parse_madt(ACPI_MADT_TYPE_LPC_PIC, pch_lpc_parse_madt, 0);
+ if (r < 0)
+ return r;
+
return 0;
}
@@ -350,6 +353,9 @@ int __init pch_pic_acpi_init(struct irq_domain *parent,
int ret, vec_base;
struct fwnode_handle *domain_handle;
+ if (find_pch_pic(acpi_pchpic->gsi_base) >= 0)
+ return 0;
+
vec_base = acpi_pchpic->gsi_base - GSI_MIN_PCH_IRQ;
domain_handle = irq_domain_alloc_fwnode(&acpi_pchpic->address);
@@ -367,7 +373,7 @@ int __init pch_pic_acpi_init(struct irq_domain *parent,
}
if (acpi_pchpic->id == 0)
- acpi_cascade_irqdomain_init();
+ ret = acpi_cascade_irqdomain_init();
return ret;
}
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