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path: root/drivers/pci/controller/pcie-microchip-host.c
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Diffstat (limited to 'drivers/pci/controller/pcie-microchip-host.c')
-rw-r--r--drivers/pci/controller/pcie-microchip-host.c60
1 files changed, 28 insertions, 32 deletions
diff --git a/drivers/pci/controller/pcie-microchip-host.c b/drivers/pci/controller/pcie-microchip-host.c
index fdab8202ae5d..29d8e81e4181 100644
--- a/drivers/pci/controller/pcie-microchip-host.c
+++ b/drivers/pci/controller/pcie-microchip-host.c
@@ -262,7 +262,7 @@ struct mc_msi {
DECLARE_BITMAP(used, MC_NUM_MSI_IRQS);
};
-struct mc_port {
+struct mc_pcie {
void __iomem *axi_base_addr;
struct device *dev;
struct irq_domain *intx_domain;
@@ -382,7 +382,7 @@ static struct {
static char poss_clks[][5] = { "fic0", "fic1", "fic2", "fic3" };
-static void mc_pcie_enable_msi(struct mc_port *port, void __iomem *base)
+static void mc_pcie_enable_msi(struct mc_pcie *port, void __iomem *base)
{
struct mc_msi *msi = &port->msi;
u32 cap_offset = MC_MSI_CAP_CTRL_OFFSET;
@@ -405,23 +405,21 @@ static void mc_pcie_enable_msi(struct mc_port *port, void __iomem *base)
static void mc_handle_msi(struct irq_desc *desc)
{
- struct mc_port *port = irq_desc_get_handler_data(desc);
+ struct mc_pcie *port = irq_desc_get_handler_data(desc);
struct device *dev = port->dev;
struct mc_msi *msi = &port->msi;
void __iomem *bridge_base_addr =
port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
unsigned long status;
u32 bit;
- u32 virq;
+ int ret;
status = readl_relaxed(bridge_base_addr + ISTATUS_LOCAL);
if (status & PM_MSI_INT_MSI_MASK) {
status = readl_relaxed(bridge_base_addr + ISTATUS_MSI);
for_each_set_bit(bit, &status, msi->num_vectors) {
- virq = irq_find_mapping(msi->dev_domain, bit);
- if (virq)
- generic_handle_irq(virq);
- else
+ ret = generic_handle_domain_irq(msi->dev_domain, bit);
+ if (ret)
dev_err_ratelimited(dev, "bad MSI IRQ %d\n",
bit);
}
@@ -430,7 +428,7 @@ static void mc_handle_msi(struct irq_desc *desc)
static void mc_msi_bottom_irq_ack(struct irq_data *data)
{
- struct mc_port *port = irq_data_get_irq_chip_data(data);
+ struct mc_pcie *port = irq_data_get_irq_chip_data(data);
void __iomem *bridge_base_addr =
port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
u32 bitpos = data->hwirq;
@@ -445,7 +443,7 @@ static void mc_msi_bottom_irq_ack(struct irq_data *data)
static void mc_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
{
- struct mc_port *port = irq_data_get_irq_chip_data(data);
+ struct mc_pcie *port = irq_data_get_irq_chip_data(data);
phys_addr_t addr = port->msi.vector_phy;
msg->address_lo = lower_32_bits(addr);
@@ -472,7 +470,7 @@ static struct irq_chip mc_msi_bottom_irq_chip = {
static int mc_irq_msi_domain_alloc(struct irq_domain *domain, unsigned int virq,
unsigned int nr_irqs, void *args)
{
- struct mc_port *port = domain->host_data;
+ struct mc_pcie *port = domain->host_data;
struct mc_msi *msi = &port->msi;
void __iomem *bridge_base_addr =
port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
@@ -505,7 +503,7 @@ static void mc_irq_msi_domain_free(struct irq_domain *domain, unsigned int virq,
unsigned int nr_irqs)
{
struct irq_data *d = irq_domain_get_irq_data(domain, virq);
- struct mc_port *port = irq_data_get_irq_chip_data(d);
+ struct mc_pcie *port = irq_data_get_irq_chip_data(d);
struct mc_msi *msi = &port->msi;
mutex_lock(&msi->lock);
@@ -536,7 +534,7 @@ static struct msi_domain_info mc_msi_domain_info = {
.chip = &mc_msi_irq_chip,
};
-static int mc_allocate_msi_domains(struct mc_port *port)
+static int mc_allocate_msi_domains(struct mc_pcie *port)
{
struct device *dev = port->dev;
struct fwnode_handle *fwnode = of_node_to_fwnode(dev->of_node);
@@ -564,23 +562,21 @@ static int mc_allocate_msi_domains(struct mc_port *port)
static void mc_handle_intx(struct irq_desc *desc)
{
- struct mc_port *port = irq_desc_get_handler_data(desc);
+ struct mc_pcie *port = irq_desc_get_handler_data(desc);
struct device *dev = port->dev;
void __iomem *bridge_base_addr =
port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
unsigned long status;
u32 bit;
- u32 virq;
+ int ret;
status = readl_relaxed(bridge_base_addr + ISTATUS_LOCAL);
if (status & PM_MSI_INT_INTX_MASK) {
status &= PM_MSI_INT_INTX_MASK;
status >>= PM_MSI_INT_INTX_SHIFT;
for_each_set_bit(bit, &status, PCI_NUM_INTX) {
- virq = irq_find_mapping(port->intx_domain, bit);
- if (virq)
- generic_handle_irq(virq);
- else
+ ret = generic_handle_domain_irq(port->intx_domain, bit);
+ if (ret)
dev_err_ratelimited(dev, "bad INTx IRQ %d\n",
bit);
}
@@ -589,7 +585,7 @@ static void mc_handle_intx(struct irq_desc *desc)
static void mc_ack_intx_irq(struct irq_data *data)
{
- struct mc_port *port = irq_data_get_irq_chip_data(data);
+ struct mc_pcie *port = irq_data_get_irq_chip_data(data);
void __iomem *bridge_base_addr =
port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
u32 mask = BIT(data->hwirq + PM_MSI_INT_INTX_SHIFT);
@@ -599,7 +595,7 @@ static void mc_ack_intx_irq(struct irq_data *data)
static void mc_mask_intx_irq(struct irq_data *data)
{
- struct mc_port *port = irq_data_get_irq_chip_data(data);
+ struct mc_pcie *port = irq_data_get_irq_chip_data(data);
void __iomem *bridge_base_addr =
port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
unsigned long flags;
@@ -615,7 +611,7 @@ static void mc_mask_intx_irq(struct irq_data *data)
static void mc_unmask_intx_irq(struct irq_data *data)
{
- struct mc_port *port = irq_data_get_irq_chip_data(data);
+ struct mc_pcie *port = irq_data_get_irq_chip_data(data);
void __iomem *bridge_base_addr =
port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
unsigned long flags;
@@ -702,7 +698,7 @@ static u32 local_events(void __iomem *addr)
return val;
}
-static u32 get_events(struct mc_port *port)
+static u32 get_events(struct mc_pcie *port)
{
void __iomem *bridge_base_addr =
port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
@@ -719,7 +715,7 @@ static u32 get_events(struct mc_port *port)
static irqreturn_t mc_event_handler(int irq, void *dev_id)
{
- struct mc_port *port = dev_id;
+ struct mc_pcie *port = dev_id;
struct device *dev = port->dev;
struct irq_data *data;
@@ -735,7 +731,7 @@ static irqreturn_t mc_event_handler(int irq, void *dev_id)
static void mc_handle_event(struct irq_desc *desc)
{
- struct mc_port *port = irq_desc_get_handler_data(desc);
+ struct mc_pcie *port = irq_desc_get_handler_data(desc);
unsigned long events;
u32 bit;
struct irq_chip *chip = irq_desc_get_chip(desc);
@@ -745,14 +741,14 @@ static void mc_handle_event(struct irq_desc *desc)
events = get_events(port);
for_each_set_bit(bit, &events, NUM_EVENTS)
- generic_handle_irq(irq_find_mapping(port->event_domain, bit));
+ generic_handle_domain_irq(port->event_domain, bit);
chained_irq_exit(chip, desc);
}
static void mc_ack_event_irq(struct irq_data *data)
{
- struct mc_port *port = irq_data_get_irq_chip_data(data);
+ struct mc_pcie *port = irq_data_get_irq_chip_data(data);
u32 event = data->hwirq;
void __iomem *addr;
u32 mask;
@@ -767,7 +763,7 @@ static void mc_ack_event_irq(struct irq_data *data)
static void mc_mask_event_irq(struct irq_data *data)
{
- struct mc_port *port = irq_data_get_irq_chip_data(data);
+ struct mc_pcie *port = irq_data_get_irq_chip_data(data);
u32 event = data->hwirq;
void __iomem *addr;
u32 mask;
@@ -797,7 +793,7 @@ static void mc_mask_event_irq(struct irq_data *data)
static void mc_unmask_event_irq(struct irq_data *data)
{
- struct mc_port *port = irq_data_get_irq_chip_data(data);
+ struct mc_pcie *port = irq_data_get_irq_chip_data(data);
u32 event = data->hwirq;
void __iomem *addr;
u32 mask;
@@ -885,7 +881,7 @@ static int mc_pcie_init_clks(struct device *dev)
return 0;
}
-static int mc_pcie_init_irq_domains(struct mc_port *port)
+static int mc_pcie_init_irq_domains(struct mc_pcie *port)
{
struct device *dev = port->dev;
struct device_node *node = dev->of_node;
@@ -961,7 +957,7 @@ static void mc_pcie_setup_window(void __iomem *bridge_base_addr, u32 index,
}
static int mc_pcie_setup_windows(struct platform_device *pdev,
- struct mc_port *port)
+ struct mc_pcie *port)
{
void __iomem *bridge_base_addr =
port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
@@ -987,7 +983,7 @@ static int mc_platform_init(struct pci_config_window *cfg)
{
struct device *dev = cfg->parent;
struct platform_device *pdev = to_platform_device(dev);
- struct mc_port *port;
+ struct mc_pcie *port;
void __iomem *bridge_base_addr;
void __iomem *ctrl_base_addr;
int ret;
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