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path: root/drivers/irqchip/irq-gic-v2m.c
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Diffstat (limited to 'drivers/irqchip/irq-gic-v2m.c')
-rw-r--r--drivers/irqchip/irq-gic-v2m.c56
1 files changed, 33 insertions, 23 deletions
diff --git a/drivers/irqchip/irq-gic-v2m.c b/drivers/irqchip/irq-gic-v2m.c
index fdf706555..12985daa6 100644
--- a/drivers/irqchip/irq-gic-v2m.c
+++ b/drivers/irqchip/irq-gic-v2m.c
@@ -45,13 +45,11 @@
struct v2m_data {
spinlock_t msi_cnt_lock;
- struct msi_controller mchip;
struct resource res; /* GICv2m resource */
void __iomem *base; /* GICv2m virt address */
u32 spi_start; /* The SPI number that MSIs start */
u32 nr_spis; /* The number of SPIs for MSIs */
unsigned long *bm; /* MSI vector bitmap */
- struct irq_domain *domain;
};
static void gicv2m_mask_msi_irq(struct irq_data *d)
@@ -97,8 +95,8 @@ static void gicv2m_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
struct v2m_data *v2m = irq_data_get_irq_chip_data(data);
phys_addr_t addr = v2m->res.start + V2M_MSI_SETSPI_NS;
- msg->address_hi = (u32) (addr >> 32);
- msg->address_lo = (u32) (addr);
+ msg->address_hi = upper_32_bits(addr);
+ msg->address_lo = lower_32_bits(addr);
msg->data = data->hwirq;
}
@@ -213,11 +211,25 @@ static bool is_msi_spi_valid(u32 base, u32 num)
return true;
}
+static struct irq_chip gicv2m_pmsi_irq_chip = {
+ .name = "pMSI",
+};
+
+static struct msi_domain_ops gicv2m_pmsi_ops = {
+};
+
+static struct msi_domain_info gicv2m_pmsi_domain_info = {
+ .flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS),
+ .ops = &gicv2m_pmsi_ops,
+ .chip = &gicv2m_pmsi_irq_chip,
+};
+
static int __init gicv2m_init_one(struct device_node *node,
struct irq_domain *parent)
{
int ret;
struct v2m_data *v2m;
+ struct irq_domain *inner_domain, *pci_domain, *plat_domain;
v2m = kzalloc(sizeof(struct v2m_data), GFP_KERNEL);
if (!v2m) {
@@ -261,32 +273,28 @@ static int __init gicv2m_init_one(struct device_node *node,
goto err_iounmap;
}
- v2m->domain = irq_domain_add_tree(NULL, &gicv2m_domain_ops, v2m);
- if (!v2m->domain) {
+ inner_domain = irq_domain_add_tree(node, &gicv2m_domain_ops, v2m);
+ if (!inner_domain) {
pr_err("Failed to create GICv2m domain\n");
ret = -ENOMEM;
goto err_free_bm;
}
- v2m->domain->parent = parent;
- v2m->mchip.of_node = node;
- v2m->mchip.domain = pci_msi_create_irq_domain(node,
- &gicv2m_msi_domain_info,
- v2m->domain);
- if (!v2m->mchip.domain) {
- pr_err("Failed to create MSI domain\n");
+ inner_domain->bus_token = DOMAIN_BUS_NEXUS;
+ inner_domain->parent = parent;
+ pci_domain = pci_msi_create_irq_domain(node, &gicv2m_msi_domain_info,
+ inner_domain);
+ plat_domain = platform_msi_create_irq_domain(node,
+ &gicv2m_pmsi_domain_info,
+ inner_domain);
+ if (!pci_domain || !plat_domain) {
+ pr_err("Failed to create MSI domains\n");
ret = -ENOMEM;
goto err_free_domains;
}
spin_lock_init(&v2m->msi_cnt_lock);
- ret = of_pci_msi_chip_add(&v2m->mchip);
- if (ret) {
- pr_err("Failed to add msi_chip.\n");
- goto err_free_domains;
- }
-
pr_info("Node %s: range[%#lx:%#lx], SPI[%d:%d]\n", node->name,
(unsigned long)v2m->res.start, (unsigned long)v2m->res.end,
v2m->spi_start, (v2m->spi_start + v2m->nr_spis));
@@ -294,10 +302,12 @@ static int __init gicv2m_init_one(struct device_node *node,
return 0;
err_free_domains:
- if (v2m->mchip.domain)
- irq_domain_remove(v2m->mchip.domain);
- if (v2m->domain)
- irq_domain_remove(v2m->domain);
+ if (plat_domain)
+ irq_domain_remove(plat_domain);
+ if (pci_domain)
+ irq_domain_remove(pci_domain);
+ if (inner_domain)
+ irq_domain_remove(inner_domain);
err_free_bm:
kfree(v2m->bm);
err_iounmap: