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[v14,RESEND,11/22] PCI: microchip: Add num_events field to struct plda_pcie_rp

Message ID 20240129005958.3613-10-minda.chen@starfivetech.com (mailing list archive)
State Superseded
Headers show
Series Refactoring Microchip PCIe driver and add StarFive PCIe | expand

Checks

Context Check Description
conchuod/vmtest-for-next-PR success PR summary
conchuod/patch-11-test-1 success .github/scripts/patches/tests/build_rv32_defconfig.sh
conchuod/patch-11-test-2 success .github/scripts/patches/tests/build_rv64_clang_allmodconfig.sh
conchuod/patch-11-test-3 success .github/scripts/patches/tests/build_rv64_gcc_allmodconfig.sh
conchuod/patch-11-test-4 success .github/scripts/patches/tests/build_rv64_nommu_k210_defconfig.sh
conchuod/patch-11-test-5 success .github/scripts/patches/tests/build_rv64_nommu_virt_defconfig.sh
conchuod/patch-11-test-6 success .github/scripts/patches/tests/checkpatch.sh
conchuod/patch-11-test-7 success .github/scripts/patches/tests/dtb_warn_rv64.sh
conchuod/patch-11-test-8 success .github/scripts/patches/tests/header_inline.sh
conchuod/patch-11-test-9 success .github/scripts/patches/tests/kdoc.sh
conchuod/patch-11-test-10 success .github/scripts/patches/tests/module_param.sh
conchuod/patch-11-test-11 success .github/scripts/patches/tests/verify_fixes.sh
conchuod/patch-11-test-12 success .github/scripts/patches/tests/verify_signedoff.sh

Commit Message

Minda Chen Jan. 29, 2024, 12:59 a.m. UTC 
The number of events is different across platforms. In order to share
interrupt processing code, add a variable that defines the number of
events so that it can be set per-platform instead of hardcoding it.

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
---
 drivers/pci/controller/plda/pcie-microchip-host.c | 8 +++++---
 drivers/pci/controller/plda/pcie-plda.h           | 1 +
 2 files changed, 6 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/pci/controller/plda/pcie-microchip-host.c b/drivers/pci/controller/plda/pcie-microchip-host.c
index 18bc352db389..0a5cd8b214cd 100644
--- a/drivers/pci/controller/plda/pcie-microchip-host.c
+++ b/drivers/pci/controller/plda/pcie-microchip-host.c
@@ -653,7 +653,7 @@  static void plda_handle_event(struct irq_desc *desc)
 
 	events = mc_get_events(port);
 
-	for_each_set_bit(bit, &events, NUM_EVENTS)
+	for_each_set_bit(bit, &events, port->num_events)
 		generic_handle_domain_irq(port->event_domain, bit);
 
 	chained_irq_exit(chip, desc);
@@ -816,7 +816,8 @@  static int plda_pcie_init_irq_domains(struct plda_pcie_rp *port)
 		return -EINVAL;
 	}
 
-	port->event_domain = irq_domain_add_linear(pcie_intc_node, NUM_EVENTS,
+	port->event_domain = irq_domain_add_linear(pcie_intc_node,
+						   port->num_events,
 						   &plda_event_domain_ops,
 						   port);
 	if (!port->event_domain) {
@@ -920,7 +921,7 @@  static int plda_init_interrupts(struct platform_device *pdev, struct plda_pcie_r
 	if (irq < 0)
 		return -ENODEV;
 
-	for (i = 0; i < NUM_EVENTS; i++) {
+	for (i = 0; i < port->num_events; i++) {
 		event_irq = irq_create_mapping(port->event_domain, i);
 		if (!event_irq) {
 			dev_err(dev, "failed to map hwirq %d\n", i);
@@ -1012,6 +1013,7 @@  static int mc_host_probe(struct platform_device *pdev)
 
 	bridge_base_addr = port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
 	plda->bridge_addr = bridge_base_addr;
+	plda->num_events = NUM_EVENTS;
 
 	/* Allow enabling MSI by disabling MSI-X */
 	val = readl(bridge_base_addr + PCIE_PCI_IRQ_DW0);
diff --git a/drivers/pci/controller/plda/pcie-plda.h b/drivers/pci/controller/plda/pcie-plda.h
index e277a5452b5d..f7e900b395f8 100644
--- a/drivers/pci/controller/plda/pcie-plda.h
+++ b/drivers/pci/controller/plda/pcie-plda.h
@@ -124,6 +124,7 @@  struct plda_pcie_rp {
 	raw_spinlock_t lock;
 	struct plda_msi msi;
 	void __iomem *bridge_addr;
+	int num_events;
 };
 
 void plda_pcie_setup_window(void __iomem *bridge_base_addr, u32 index,