From 142fc300fd7511a217783dcfa342031d8ad70188 Mon Sep 17 00:00:00 2001 From: Minda Chen Date: Mon, 8 Jan 2024 19:06:07 +0800 Subject: [PATCH 030/116] pci: plda: Add event bitmap field to struct plda_pcie_rp For PLDA DMA interrupts are not all implemented. The non-implemented interrupts should be masked. So add a bitmap field to mask the non- implemented interrupts. Signed-off-by: Minda Chen --- drivers/pci/controller/plda/pcie-microchip-host.c | 1 + drivers/pci/controller/plda/pcie-plda-host.c | 6 ++++-- drivers/pci/controller/plda/pcie-plda.h | 1 + 3 files changed, 6 insertions(+), 2 deletions(-) --- a/drivers/pci/controller/plda/pcie-microchip-host.c +++ b/drivers/pci/controller/plda/pcie-microchip-host.c @@ -636,6 +636,7 @@ static int mc_platform_init(struct pci_c port->plda.event_ops = &mc_event_ops; port->plda.event_irq_chip = &mc_event_irq_chip; + port->plda.events_bitmap = GENMASK(NUM_EVENTS - 1, 0); /* Address translation is up; safe to enable interrupts */ ret = plda_init_interrupts(pdev, &port->plda, &mc_event); --- a/drivers/pci/controller/plda/pcie-plda-host.c +++ b/drivers/pci/controller/plda/pcie-plda-host.c @@ -290,6 +290,7 @@ static void plda_handle_event(struct irq events = port->event_ops->get_events(port); + events &= port->events_bitmap; for_each_set_bit(bit, &events, port->num_events) generic_handle_domain_irq(port->event_domain, bit); @@ -420,8 +421,9 @@ int plda_init_interrupts(struct platform { struct device *dev = &pdev->dev; int irq; - int i, intx_irq, msi_irq, event_irq; + int intx_irq, msi_irq, event_irq; int ret; + u32 i; if (!port->event_ops) port->event_ops = &plda_event_ops; @@ -439,7 +441,7 @@ int plda_init_interrupts(struct platform if (irq < 0) return -ENODEV; - for (i = 0; i < port->num_events; i++) { + for_each_set_bit(i, &port->events_bitmap, port->num_events) { event_irq = irq_create_mapping(port->event_domain, i); if (!event_irq) { dev_err(dev, "failed to map hwirq %d\n", i); --- a/drivers/pci/controller/plda/pcie-plda.h +++ b/drivers/pci/controller/plda/pcie-plda.h @@ -159,6 +159,7 @@ struct plda_pcie_rp { const struct plda_event_ops *event_ops; const struct irq_chip *event_irq_chip; void __iomem *bridge_addr; + unsigned long events_bitmap; int num_events; };