diff options
Diffstat (limited to 'drivers/pci/host')
| -rw-r--r-- | drivers/pci/host/pci-ftpci100.c | 2 | ||||
| -rw-r--r-- | drivers/pci/host/pci-host-generic.c | 43 | ||||
| -rw-r--r-- | drivers/pci/host/pci-hyperv.c | 8 | ||||
| -rw-r--r-- | drivers/pci/host/pcie-altera.c | 8 | ||||
| -rw-r--r-- | drivers/pci/host/pcie-iproc-msi.c | 19 |
5 files changed, 65 insertions, 15 deletions
diff --git a/drivers/pci/host/pci-ftpci100.c b/drivers/pci/host/pci-ftpci100.c index 06d9687e038a..fae6bd190770 100644 --- a/drivers/pci/host/pci-ftpci100.c +++ b/drivers/pci/host/pci-ftpci100.c @@ -463,7 +463,7 @@ static int faraday_pci_probe(struct platform_device *pdev) } p->bus_clk = devm_clk_get(dev, "PCICLK"); if (IS_ERR(p->bus_clk)) - return PTR_ERR(clk); + return PTR_ERR(p->bus_clk); ret = clk_prepare_enable(p->bus_clk); if (ret) { dev_err(dev, "could not prepare PCICLK\n"); diff --git a/drivers/pci/host/pci-host-generic.c b/drivers/pci/host/pci-host-generic.c index 7d709a7e0aa8..2f05511ce718 100644 --- a/drivers/pci/host/pci-host-generic.c +++ b/drivers/pci/host/pci-host-generic.c @@ -35,6 +35,40 @@ static struct pci_ecam_ops gen_pci_cfg_cam_bus_ops = { } }; +static bool pci_dw_valid_device(struct pci_bus *bus, unsigned int devfn) +{ + struct pci_config_window *cfg = bus->sysdata; + + /* + * The Synopsys DesignWare PCIe controller in ECAM mode will not filter + * type 0 config TLPs sent to devices 1 and up on its downstream port, + * resulting in devices appearing multiple times on bus 0 unless we + * filter out those accesses here. + */ + if (bus->number == cfg->busr.start && PCI_SLOT(devfn) > 0) + return false; + + return true; +} + +static void __iomem *pci_dw_ecam_map_bus(struct pci_bus *bus, + unsigned int devfn, int where) +{ + if (!pci_dw_valid_device(bus, devfn)) + return NULL; + + return pci_ecam_map_bus(bus, devfn, where); +} + +static struct pci_ecam_ops pci_dw_ecam_bus_ops = { + .bus_shift = 20, + .pci_ops = { + .map_bus = pci_dw_ecam_map_bus, + .read = pci_generic_config_read, + .write = pci_generic_config_write, + } +}; + static const struct of_device_id gen_pci_of_match[] = { { .compatible = "pci-host-cam-generic", .data = &gen_pci_cfg_cam_bus_ops }, @@ -42,6 +76,15 @@ static const struct of_device_id gen_pci_of_match[] = { { .compatible = "pci-host-ecam-generic", .data = &pci_generic_ecam_ops }, + { .compatible = "marvell,armada8k-pcie-ecam", + .data = &pci_dw_ecam_bus_ops }, + + { .compatible = "socionext,synquacer-pcie-ecam", + .data = &pci_dw_ecam_bus_ops }, + + { .compatible = "snps,dw-pcie-ecam", + .data = &pci_dw_ecam_bus_ops }, + { }, }; diff --git a/drivers/pci/host/pci-hyperv.c b/drivers/pci/host/pci-hyperv.c index 0fe3ea164ee5..04dac6a42c9f 100644 --- a/drivers/pci/host/pci-hyperv.c +++ b/drivers/pci/host/pci-hyperv.c @@ -879,7 +879,7 @@ static void hv_irq_unmask(struct irq_data *data) int cpu; u64 res; - dest = irq_data_get_affinity_mask(data); + dest = irq_data_get_effective_affinity_mask(data); pdev = msi_desc_to_pci_dev(msi_desc); pbus = pdev->bus; hbus = container_of(pbus->sysdata, struct hv_pcibus_device, sysdata); @@ -1042,6 +1042,7 @@ static void hv_compose_msi_msg(struct irq_data *data, struct msi_msg *msg) struct hv_pci_dev *hpdev; struct pci_bus *pbus; struct pci_dev *pdev; + struct cpumask *dest; struct compose_comp_ctxt comp; struct tran_int_desc *int_desc; struct { @@ -1056,6 +1057,7 @@ static void hv_compose_msi_msg(struct irq_data *data, struct msi_msg *msg) int ret; pdev = msi_desc_to_pci_dev(irq_data_get_msi_desc(data)); + dest = irq_data_get_effective_affinity_mask(data); pbus = pdev->bus; hbus = container_of(pbus->sysdata, struct hv_pcibus_device, sysdata); hpdev = get_pcichild_wslot(hbus, devfn_to_wslot(pdev->devfn)); @@ -1081,14 +1083,14 @@ static void hv_compose_msi_msg(struct irq_data *data, struct msi_msg *msg) switch (pci_protocol_version) { case PCI_PROTOCOL_VERSION_1_1: size = hv_compose_msi_req_v1(&ctxt.int_pkts.v1, - irq_data_get_affinity_mask(data), + dest, hpdev->desc.win_slot.slot, cfg->vector); break; case PCI_PROTOCOL_VERSION_1_2: size = hv_compose_msi_req_v2(&ctxt.int_pkts.v2, - irq_data_get_affinity_mask(data), + dest, hpdev->desc.win_slot.slot, cfg->vector); break; diff --git a/drivers/pci/host/pcie-altera.c b/drivers/pci/host/pcie-altera.c index b468b8cccf8d..5cc4f594d79a 100644 --- a/drivers/pci/host/pcie-altera.c +++ b/drivers/pci/host/pcie-altera.c @@ -105,7 +105,7 @@ static inline u32 cra_readl(struct altera_pcie *pcie, const u32 reg) return readl_relaxed(pcie->cra_base + reg); } -static bool altera_pcie_link_is_up(struct altera_pcie *pcie) +static bool altera_pcie_link_up(struct altera_pcie *pcie) { return !!((cra_readl(pcie, RP_LTSSM) & RP_LTSSM_MASK) == LTSSM_L0); } @@ -142,7 +142,7 @@ static bool altera_pcie_valid_device(struct altera_pcie *pcie, { /* If there is no link, then there is no device */ if (bus->number != pcie->root_bus_nr) { - if (!altera_pcie_link_is_up(pcie)) + if (!altera_pcie_link_up(pcie)) return false; } @@ -412,7 +412,7 @@ static void altera_wait_link_retrain(struct altera_pcie *pcie) /* Wait for link is up */ start_jiffies = jiffies; for (;;) { - if (altera_pcie_link_is_up(pcie)) + if (altera_pcie_link_up(pcie)) break; if (time_after(jiffies, start_jiffies + LINK_UP_TIMEOUT)) { @@ -427,7 +427,7 @@ static void altera_pcie_retrain(struct altera_pcie *pcie) { u16 linkcap, linkstat, linkctl; - if (!altera_pcie_link_is_up(pcie)) + if (!altera_pcie_link_up(pcie)) return; /* diff --git a/drivers/pci/host/pcie-iproc-msi.c b/drivers/pci/host/pcie-iproc-msi.c index 2d0f535a2f69..990fc906d73d 100644 --- a/drivers/pci/host/pcie-iproc-msi.c +++ b/drivers/pci/host/pcie-iproc-msi.c @@ -179,7 +179,7 @@ static struct irq_chip iproc_msi_irq_chip = { static struct msi_domain_info iproc_msi_domain_info = { .flags = MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS | - MSI_FLAG_PCI_MSIX, + MSI_FLAG_MULTI_PCI_MSI | MSI_FLAG_PCI_MSIX, .chip = &iproc_msi_irq_chip, }; @@ -237,7 +237,7 @@ static void iproc_msi_irq_compose_msi_msg(struct irq_data *data, addr = msi->msi_addr + iproc_msi_addr_offset(msi, data->hwirq); msg->address_lo = lower_32_bits(addr); msg->address_hi = upper_32_bits(addr); - msg->data = data->hwirq; + msg->data = data->hwirq << 5; } static struct irq_chip iproc_msi_bottom_irq_chip = { @@ -251,7 +251,7 @@ static int iproc_msi_irq_domain_alloc(struct irq_domain *domain, void *args) { struct iproc_msi *msi = domain->host_data; - int hwirq; + int hwirq, i; mutex_lock(&msi->bitmap_lock); @@ -267,10 +267,14 @@ static int iproc_msi_irq_domain_alloc(struct irq_domain *domain, mutex_unlock(&msi->bitmap_lock); - irq_domain_set_info(domain, virq, hwirq, &iproc_msi_bottom_irq_chip, - domain->host_data, handle_simple_irq, NULL, NULL); + for (i = 0; i < nr_irqs; i++) { + irq_domain_set_info(domain, virq + i, hwirq + i, + &iproc_msi_bottom_irq_chip, + domain->host_data, handle_simple_irq, + NULL, NULL); + } - return 0; + return hwirq; } static void iproc_msi_irq_domain_free(struct irq_domain *domain, @@ -302,7 +306,8 @@ static inline u32 decode_msi_hwirq(struct iproc_msi *msi, u32 eq, u32 head) offs = iproc_msi_eq_offset(msi, eq) + head * sizeof(u32); msg = (u32 *)(msi->eq_cpu + offs); - hwirq = *msg & IPROC_MSI_EQ_MASK; + hwirq = readl(msg); + hwirq = (hwirq >> 5) + (hwirq & 0x1f); /* * Since we have multiple hwirq mapped to a single MSI vector, |
