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-rw-r--r--arch/arm64/boot/dts/marvell/armada-3720-db.dts5
-rw-r--r--arch/arm64/boot/dts/marvell/armada-37xx.dtsi25
-rw-r--r--arch/x86/pci/vmd.c41
3 files changed, 55 insertions, 16 deletions
diff --git a/arch/arm64/boot/dts/marvell/armada-3720-db.dts b/arch/arm64/boot/dts/marvell/armada-3720-db.dts
index 86110a6ae330..1372e9a6aaa4 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-db.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-db.dts
@@ -76,3 +76,8 @@
&usb3 {
status = "okay";
};
+
+/* CON17 (PCIe) / CON12 (mini-PCIe) */
+&pcie0 {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
index 9e2efb882983..8a9cae9677bf 100644
--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
@@ -141,5 +141,30 @@
<0x1d40000 0x40000>; /* GICR */
};
};
+
+ pcie0: pcie@d0070000 {
+ compatible = "marvell,armada-3700-pcie";
+ device_type = "pci";
+ status = "disabled";
+ reg = <0 0xd0070000 0 0x20000>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ bus-range = <0x00 0xff>;
+ interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
+ #interrupt-cells = <1>;
+ msi-parent = <&pcie0>;
+ msi-controller;
+ ranges = <0x82000000 0 0xe8000000 0 0xe8000000 0 0x1000000 /* Port 0 MEM */
+ 0x81000000 0 0xe9000000 0 0xe9000000 0 0x10000>; /* Port 0 IO*/
+ interrupt-map-mask = <0 0 0 7>;
+ interrupt-map = <0 0 0 1 &pcie_intc 0>,
+ <0 0 0 2 &pcie_intc 1>,
+ <0 0 0 3 &pcie_intc 2>,
+ <0 0 0 4 &pcie_intc 3>;
+ pcie_intc: interrupt-controller {
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+ };
};
};
diff --git a/arch/x86/pci/vmd.c b/arch/x86/pci/vmd.c
index 7792aba266df..fd582abfad91 100644
--- a/arch/x86/pci/vmd.c
+++ b/arch/x86/pci/vmd.c
@@ -119,10 +119,11 @@ static void vmd_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
static void vmd_irq_enable(struct irq_data *data)
{
struct vmd_irq *vmdirq = data->chip_data;
+ unsigned long flags;
- raw_spin_lock(&list_lock);
+ raw_spin_lock_irqsave(&list_lock, flags);
list_add_tail_rcu(&vmdirq->node, &vmdirq->irq->irq_list);
- raw_spin_unlock(&list_lock);
+ raw_spin_unlock_irqrestore(&list_lock, flags);
data->chip->irq_unmask(data);
}
@@ -130,12 +131,14 @@ static void vmd_irq_enable(struct irq_data *data)
static void vmd_irq_disable(struct irq_data *data)
{
struct vmd_irq *vmdirq = data->chip_data;
+ unsigned long flags;
data->chip->irq_mask(data);
- raw_spin_lock(&list_lock);
+ raw_spin_lock_irqsave(&list_lock, flags);
list_del_rcu(&vmdirq->node);
- raw_spin_unlock(&list_lock);
+ INIT_LIST_HEAD_RCU(&vmdirq->node);
+ raw_spin_unlock_irqrestore(&list_lock, flags);
}
/*
@@ -166,16 +169,20 @@ static irq_hw_number_t vmd_get_hwirq(struct msi_domain_info *info,
* XXX: We can be even smarter selecting the best IRQ once we solve the
* affinity problem.
*/
-static struct vmd_irq_list *vmd_next_irq(struct vmd_dev *vmd)
+static struct vmd_irq_list *vmd_next_irq(struct vmd_dev *vmd, struct msi_desc *desc)
{
- int i, best = 0;
+ int i, best = 1;
+ unsigned long flags;
- raw_spin_lock(&list_lock);
+ if (!desc->msi_attrib.is_msix || vmd->msix_count == 1)
+ return &vmd->irqs[0];
+
+ raw_spin_lock_irqsave(&list_lock, flags);
for (i = 1; i < vmd->msix_count; i++)
if (vmd->irqs[i].count < vmd->irqs[best].count)
best = i;
vmd->irqs[best].count++;
- raw_spin_unlock(&list_lock);
+ raw_spin_unlock_irqrestore(&list_lock, flags);
return &vmd->irqs[best];
}
@@ -184,14 +191,15 @@ static int vmd_msi_init(struct irq_domain *domain, struct msi_domain_info *info,
unsigned int virq, irq_hw_number_t hwirq,
msi_alloc_info_t *arg)
{
- struct vmd_dev *vmd = vmd_from_bus(msi_desc_to_pci_dev(arg->desc)->bus);
+ struct msi_desc *desc = arg->desc;
+ struct vmd_dev *vmd = vmd_from_bus(msi_desc_to_pci_dev(desc)->bus);
struct vmd_irq *vmdirq = kzalloc(sizeof(*vmdirq), GFP_KERNEL);
if (!vmdirq)
return -ENOMEM;
INIT_LIST_HEAD(&vmdirq->node);
- vmdirq->irq = vmd_next_irq(vmd);
+ vmdirq->irq = vmd_next_irq(vmd, desc);
vmdirq->virq = virq;
irq_domain_set_info(domain, virq, vmdirq->irq->vmd_vector, info->chip,
@@ -203,11 +211,12 @@ static void vmd_msi_free(struct irq_domain *domain,
struct msi_domain_info *info, unsigned int virq)
{
struct vmd_irq *vmdirq = irq_get_chip_data(virq);
+ unsigned long flags;
/* XXX: Potential optimization to rebalance */
- raw_spin_lock(&list_lock);
+ raw_spin_lock_irqsave(&list_lock, flags);
vmdirq->irq->count--;
- raw_spin_unlock(&list_lock);
+ raw_spin_unlock_irqrestore(&list_lock, flags);
kfree_rcu(vmdirq, rcu);
}
@@ -261,7 +270,7 @@ static struct device *to_vmd_dev(struct device *dev)
static struct dma_map_ops *vmd_dma_ops(struct device *dev)
{
- return to_vmd_dev(dev)->archdata.dma_ops;
+ return get_dma_ops(to_vmd_dev(dev));
}
static void *vmd_alloc(struct device *dev, size_t size, dma_addr_t *addr,
@@ -367,7 +376,7 @@ static void vmd_teardown_dma_ops(struct vmd_dev *vmd)
{
struct dma_domain *domain = &vmd->dma_domain;
- if (vmd->dev->dev.archdata.dma_ops)
+ if (get_dma_ops(&vmd->dev->dev))
del_dma_domain(domain);
}
@@ -379,7 +388,7 @@ static void vmd_teardown_dma_ops(struct vmd_dev *vmd)
static void vmd_setup_dma_ops(struct vmd_dev *vmd)
{
- const struct dma_map_ops *source = vmd->dev->dev.archdata.dma_ops;
+ const struct dma_map_ops *source = get_dma_ops(&vmd->dev->dev);
struct dma_map_ops *dest = &vmd->dma_ops;
struct dma_domain *domain = &vmd->dma_domain;
@@ -594,7 +603,7 @@ static int vmd_enable_domain(struct vmd_dev *vmd)
sd->node = pcibus_to_node(vmd->dev->bus);
vmd->irq_domain = pci_msi_create_irq_domain(NULL, &vmd_msi_domain_info,
- NULL);
+ x86_vector_domain);
if (!vmd->irq_domain)
return -ENODEV;
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-17 04:03:56 +0300