19 #include <linux/msi.h>
91 	struct mobiveil_msi *msi = &rp->msi;  in mobiveil_pcie_isr()  local
98 	 * The core provides a single interrupt for both INTx/MSI messages.  in mobiveil_pcie_isr()
99 	 * So we'll read both INTx and MSI status  in mobiveil_pcie_isr()
137 	/* read extra MSI status register */  in mobiveil_pcie_isr()
140 	/* handle MSI interrupts */  in mobiveil_pcie_isr()
146 		 * once we pop not only the MSI data but also address  in mobiveil_pcie_isr()
147 		 * from MSI hardware FIFO. So keeping these following  in mobiveil_pcie_isr()
154 		dev_dbg(dev, "MSI registers, data: %08x, addr: %08x:%08x\n",  in mobiveil_pcie_isr()
157 		generic_handle_domain_irq(msi->dev_domain, msi_data);  in mobiveil_pcie_isr()
205 	struct mobiveil_msi *msi = &pcie->rp.msi;  in mobiveil_pcie_enable_msi()  local
207 	msi->num_of_vectors = PCI_NUM_MSI;  in mobiveil_pcie_enable_msi()
208 	msi->msi_pages_phys = (phys_addr_t)msg_addr;  in mobiveil_pcie_enable_msi()
360 	.name = "Mobiveil PCIe MSI",
380 	dev_dbg(&pcie->pdev->dev, "msi#%d address_hi %#x address_lo %#x\n",  in mobiveil_compose_msi_msg()
391 	.name			= "Mobiveil MSI",
401 	struct mobiveil_msi *msi = &pcie->rp.msi;  in mobiveil_irq_msi_domain_alloc()  local
405 	mutex_lock(&msi->lock);  in mobiveil_irq_msi_domain_alloc()
407 	bit = find_first_zero_bit(msi->msi_irq_in_use, msi->num_of_vectors);  in mobiveil_irq_msi_domain_alloc()
408 	if (bit >= msi->num_of_vectors) {  in mobiveil_irq_msi_domain_alloc()
409 		mutex_unlock(&msi->lock);  in mobiveil_irq_msi_domain_alloc()
413 	set_bit(bit, msi->msi_irq_in_use);  in mobiveil_irq_msi_domain_alloc()
415 	mutex_unlock(&msi->lock);  in mobiveil_irq_msi_domain_alloc()
428 	struct mobiveil_msi *msi = &pcie->rp.msi;  in mobiveil_irq_msi_domain_free()  local
430 	mutex_lock(&msi->lock);  in mobiveil_irq_msi_domain_free()
432 	if (!test_bit(d->hwirq, msi->msi_irq_in_use))  in mobiveil_irq_msi_domain_free()
433 		dev_err(&pcie->pdev->dev, "trying to free unused MSI#%lu\n",  in mobiveil_irq_msi_domain_free()
436 		__clear_bit(d->hwirq, msi->msi_irq_in_use);  in mobiveil_irq_msi_domain_free()
438 	mutex_unlock(&msi->lock);  in mobiveil_irq_msi_domain_free()
449 	struct mobiveil_msi *msi = &pcie->rp.msi;  in mobiveil_allocate_msi_domains()  local
451 	mutex_init(&msi->lock);  in mobiveil_allocate_msi_domains()
452 	msi->dev_domain = irq_domain_add_linear(NULL, msi->num_of_vectors,  in mobiveil_allocate_msi_domains()
454 	if (!msi->dev_domain) {  in mobiveil_allocate_msi_domains()
459 	msi->msi_domain = pci_msi_create_irq_domain(fwnode,  in mobiveil_allocate_msi_domains()
461 						    msi->dev_domain);  in mobiveil_allocate_msi_domains()
462 	if (!msi->msi_domain) {  in mobiveil_allocate_msi_domains()
463 		dev_err(dev, "failed to create MSI domain\n");  in mobiveil_allocate_msi_domains()
464 		irq_domain_remove(msi->dev_domain);  in mobiveil_allocate_msi_domains()
488 	/* setup MSI */  in mobiveil_pcie_init_irq_domain()
500 	/* map MSI config resource */  in mobiveil_pcie_integrated_interrupt_init()
506 	/* setup MSI hardware registers */  in mobiveil_pcie_integrated_interrupt_init()