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-rw-r--r--drivers/pci/host/pci-host-generic.c2
-rw-r--r--drivers/pci/host/pci-mvebu.c2
-rw-r--r--drivers/pci/host/pci-tegra.c2
-rw-r--r--drivers/pci/host/pcie-rcar.c2
-rw-r--r--drivers/pci/msi.c84
-rw-r--r--drivers/pci/pci.c19
-rw-r--r--drivers/pci/setup-bus.c2
-rw-r--r--drivers/pci/setup-res.c75
8 files changed, 92 insertions, 96 deletions
diff --git a/drivers/pci/host/pci-host-generic.c b/drivers/pci/host/pci-host-generic.c
index 44fe6aa6a43f..3d2076f59911 100644
--- a/drivers/pci/host/pci-host-generic.c
+++ b/drivers/pci/host/pci-host-generic.c
@@ -385,4 +385,4 @@ module_platform_driver(gen_pci_driver);
MODULE_DESCRIPTION("Generic PCI host driver");
MODULE_AUTHOR("Will Deacon <will.deacon@arm.com>");
-MODULE_LICENSE("GPLv2");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index ce23e0f076b6..a8c6f1a92e0f 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -1094,4 +1094,4 @@ module_platform_driver(mvebu_pcie_driver);
MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>");
MODULE_DESCRIPTION("Marvell EBU PCIe driver");
-MODULE_LICENSE("GPLv2");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index 083cf37ca047..c284e841e3ea 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c
@@ -1716,4 +1716,4 @@ module_platform_driver(tegra_pcie_driver);
MODULE_AUTHOR("Thierry Reding <treding@nvidia.com>");
MODULE_DESCRIPTION("NVIDIA Tegra PCIe driver");
-MODULE_LICENSE("GPLv2");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
index f033972da9b9..4884ee5e07d4 100644
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/host/pcie-rcar.c
@@ -989,4 +989,4 @@ module_platform_driver(rcar_pcie_driver);
MODULE_AUTHOR("Phil Edworthy <phil.edworthy@renesas.com>");
MODULE_DESCRIPTION("Renesas R-Car PCIe driver");
-MODULE_LICENSE("GPLv2");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 50a7e4e96da7..5a40516444f3 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -235,7 +235,7 @@ static void msi_set_mask_bit(struct irq_data *data, u32 flag)
msix_mask_irq(desc, flag);
readl(desc->mask_base); /* Flush write to device */
} else {
- unsigned offset = data->irq - desc->dev->irq;
+ unsigned offset = data->irq - desc->irq;
msi_mask_irq(desc, 1 << offset, flag << offset);
}
}
@@ -463,7 +463,6 @@ static void __pci_restore_msix_state(struct pci_dev *dev)
if (!dev->msix_enabled)
return;
BUG_ON(list_empty(&dev->msi_list));
- entry = list_first_entry(&dev->msi_list, struct msi_desc, list);
/* route the table */
pci_intx_for_msi(dev, 0);
@@ -488,7 +487,6 @@ EXPORT_SYMBOL_GPL(pci_restore_msi_state);
static ssize_t msi_mode_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
- struct pci_dev *pdev = to_pci_dev(dev);
struct msi_desc *entry;
unsigned long irq;
int retval;
@@ -497,12 +495,11 @@ static ssize_t msi_mode_show(struct device *dev, struct device_attribute *attr,
if (retval)
return retval;
- list_for_each_entry(entry, &pdev->msi_list, list) {
- if (entry->irq == irq) {
- return sprintf(buf, "%s\n",
- entry->msi_attrib.is_msix ? "msix" : "msi");
- }
- }
+ entry = irq_get_msi_desc(irq);
+ if (entry)
+ return sprintf(buf, "%s\n",
+ entry->msi_attrib.is_msix ? "msix" : "msi");
+
return -ENODEV;
}
@@ -581,6 +578,38 @@ error_attrs:
return ret;
}
+static struct msi_desc *msi_setup_entry(struct pci_dev *dev)
+{
+ u16 control;
+ struct msi_desc *entry;
+
+ /* MSI Entry Initialization */
+ entry = alloc_msi_entry(dev);
+ if (!entry)
+ return NULL;
+
+ pci_read_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, &control);
+
+ entry->msi_attrib.is_msix = 0;
+ entry->msi_attrib.is_64 = !!(control & PCI_MSI_FLAGS_64BIT);
+ entry->msi_attrib.entry_nr = 0;
+ entry->msi_attrib.maskbit = !!(control & PCI_MSI_FLAGS_MASKBIT);
+ entry->msi_attrib.default_irq = dev->irq; /* Save IOAPIC IRQ */
+ entry->msi_attrib.pos = dev->msi_cap;
+ entry->msi_attrib.multi_cap = (control & PCI_MSI_FLAGS_QMASK) >> 1;
+
+ if (control & PCI_MSI_FLAGS_64BIT)
+ entry->mask_pos = dev->msi_cap + PCI_MSI_MASK_64;
+ else
+ entry->mask_pos = dev->msi_cap + PCI_MSI_MASK_32;
+
+ /* Save the initial mask status */
+ if (entry->msi_attrib.maskbit)
+ pci_read_config_dword(dev, entry->mask_pos, &entry->masked);
+
+ return entry;
+}
+
/**
* msi_capability_init - configure device's MSI capability structure
* @dev: pointer to the pci_dev data structure of MSI device function
@@ -596,32 +625,15 @@ static int msi_capability_init(struct pci_dev *dev, int nvec)
{
struct msi_desc *entry;
int ret;
- u16 control;
unsigned mask;
msi_set_enable(dev, 0); /* Disable MSI during set up */
- pci_read_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, &control);
- /* MSI Entry Initialization */
- entry = alloc_msi_entry(dev);
+ entry = msi_setup_entry(dev);
if (!entry)
return -ENOMEM;
- entry->msi_attrib.is_msix = 0;
- entry->msi_attrib.is_64 = !!(control & PCI_MSI_FLAGS_64BIT);
- entry->msi_attrib.entry_nr = 0;
- entry->msi_attrib.maskbit = !!(control & PCI_MSI_FLAGS_MASKBIT);
- entry->msi_attrib.default_irq = dev->irq; /* Save IOAPIC IRQ */
- entry->msi_attrib.pos = dev->msi_cap;
- entry->msi_attrib.multi_cap = (control & PCI_MSI_FLAGS_QMASK) >> 1;
-
- if (control & PCI_MSI_FLAGS_64BIT)
- entry->mask_pos = dev->msi_cap + PCI_MSI_MASK_64;
- else
- entry->mask_pos = dev->msi_cap + PCI_MSI_MASK_32;
/* All MSIs are unmasked by default, Mask them all */
- if (entry->msi_attrib.maskbit)
- pci_read_config_dword(dev, entry->mask_pos, &entry->masked);
mask = msi_mask(entry->msi_attrib.multi_cap);
msi_mask_irq(entry, mask, mask);
@@ -999,24 +1011,6 @@ void pci_disable_msix(struct pci_dev *dev)
}
EXPORT_SYMBOL(pci_disable_msix);
-/**
- * msi_remove_pci_irq_vectors - reclaim MSI(X) irqs to unused state
- * @dev: pointer to the pci_dev data structure of MSI(X) device function
- *
- * Being called during hotplug remove, from which the device function
- * is hot-removed. All previous assigned MSI/MSI-X irqs, if
- * allocated for this device function, are reclaimed to unused state,
- * which may be used later on.
- **/
-void msi_remove_pci_irq_vectors(struct pci_dev *dev)
-{
- if (!pci_msi_enable || !dev)
- return;
-
- if (dev->msi_enabled || dev->msix_enabled)
- free_msi_irqs(dev);
-}
-
void pci_no_msi(void)
{
pci_msi_enable = 0;
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 63a54a340863..74043a2a2da8 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -839,12 +839,6 @@ int pci_set_power_state(struct pci_dev *dev, pci_power_t state)
if (!__pci_complete_power_transition(dev, state))
error = 0;
- /*
- * When aspm_policy is "powersave" this call ensures
- * that ASPM is configured.
- */
- if (!error && dev->bus->self)
- pcie_aspm_powersave_config_link(dev->bus->self);
return error;
}
@@ -1195,12 +1189,18 @@ int __weak pcibios_enable_device(struct pci_dev *dev, int bars)
static int do_pci_enable_device(struct pci_dev *dev, int bars)
{
int err;
+ struct pci_dev *bridge;
u16 cmd;
u8 pin;
err = pci_set_power_state(dev, PCI_D0);
if (err < 0 && err != -EIO)
return err;
+
+ bridge = pci_upstream_bridge(dev);
+ if (bridge)
+ pcie_aspm_powersave_config_link(bridge);
+
err = pcibios_enable_device(dev, bars);
if (err < 0)
return err;
@@ -3193,7 +3193,7 @@ static int pci_pm_reset(struct pci_dev *dev, int probe)
return 0;
}
-void __weak pcibios_reset_secondary_bus(struct pci_dev *dev)
+void pci_reset_secondary_bus(struct pci_dev *dev)
{
u16 ctrl;
@@ -3219,6 +3219,11 @@ void __weak pcibios_reset_secondary_bus(struct pci_dev *dev)
ssleep(1);
}
+void __weak pcibios_reset_secondary_bus(struct pci_dev *dev)
+{
+ pci_reset_secondary_bus(dev);
+}
+
/**
* pci_reset_bridge_secondary_bus - Reset the secondary bus on a PCI bridge.
* @dev: Bridge device
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index a5a63ecfb628..6373985ad3f7 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -925,7 +925,7 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask,
{
struct pci_dev *dev;
resource_size_t min_align, align, size, size0, size1;
- resource_size_t aligns[14]; /* Alignments from 1Mb to 8Gb */
+ resource_size_t aligns[18]; /* Alignments from 1Mb to 128Gb */
int order, max_order;
struct resource *b_res = find_free_bus_resource(bus,
mask | IORESOURCE_PREFETCH, type);
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index caed1ce6facd..b7c3a5ea1fca 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -166,11 +166,10 @@ static int pci_revert_fw_address(struct resource *res, struct pci_dev *dev,
{
struct resource *root, *conflict;
resource_size_t fw_addr, start, end;
- int ret = 0;
fw_addr = pcibios_retrieve_fw_addr(dev, resno);
if (!fw_addr)
- return 1;
+ return -ENOMEM;
start = res->start;
end = res->end;
@@ -189,14 +188,13 @@ static int pci_revert_fw_address(struct resource *res, struct pci_dev *dev,
resno, res);
conflict = request_resource_conflict(root, res);
if (conflict) {
- dev_info(&dev->dev,
- "BAR %d: %pR conflicts with %s %pR\n", resno,
- res, conflict->name, conflict);
+ dev_info(&dev->dev, "BAR %d: %pR conflicts with %s %pR\n",
+ resno, res, conflict->name, conflict);
res->start = start;
res->end = end;
- ret = 1;
+ return -EBUSY;
}
- return ret;
+ return 0;
}
static int __pci_assign_resource(struct pci_bus *bus, struct pci_dev *dev,
@@ -250,10 +248,8 @@ static int __pci_assign_resource(struct pci_bus *bus, struct pci_dev *dev,
static int _pci_assign_resource(struct pci_dev *dev, int resno,
resource_size_t size, resource_size_t min_align)
{
- struct resource *res = dev->resource + resno;
struct pci_bus *bus;
int ret;
- char *type;
bus = dev->bus;
while ((ret = __pci_assign_resource(bus, dev, resno, size, min_align))) {
@@ -262,21 +258,6 @@ static int _pci_assign_resource(struct pci_dev *dev, int resno,
bus = bus->parent;
}
- if (ret) {
- if (res->flags & IORESOURCE_MEM)
- if (res->flags & IORESOURCE_PREFETCH)
- type = "mem pref";
- else
- type = "mem";
- else if (res->flags & IORESOURCE_IO)
- type = "io";
- else
- type = "unknown";
- dev_info(&dev->dev,
- "BAR %d: can't assign %s (size %#llx)\n",
- resno, type, (unsigned long long) resource_size(res));
- }
-
return ret;
}
@@ -302,17 +283,24 @@ int pci_assign_resource(struct pci_dev *dev, int resno)
* where firmware left it. That at least has a chance of
* working, which is better than just leaving it disabled.
*/
- if (ret < 0)
+ if (ret < 0) {
+ dev_info(&dev->dev, "BAR %d: no space for %pR\n", resno, res);
ret = pci_revert_fw_address(res, dev, resno, size);
+ }
- if (!ret) {
- res->flags &= ~IORESOURCE_UNSET;
- res->flags &= ~IORESOURCE_STARTALIGN;
- dev_info(&dev->dev, "BAR %d: assigned %pR\n", resno, res);
- if (resno < PCI_BRIDGE_RESOURCES)
- pci_update_resource(dev, resno);
+ if (ret < 0) {
+ dev_info(&dev->dev, "BAR %d: failed to assign %pR\n", resno,
+ res);
+ return ret;
}
- return ret;
+
+ res->flags &= ~IORESOURCE_UNSET;
+ res->flags &= ~IORESOURCE_STARTALIGN;
+ dev_info(&dev->dev, "BAR %d: assigned %pR\n", resno, res);
+ if (resno < PCI_BRIDGE_RESOURCES)
+ pci_update_resource(dev, resno);
+
+ return 0;
}
EXPORT_SYMBOL(pci_assign_resource);
@@ -320,9 +308,11 @@ int pci_reassign_resource(struct pci_dev *dev, int resno, resource_size_t addsiz
resource_size_t min_align)
{
struct resource *res = dev->resource + resno;
+ unsigned long flags;
resource_size_t new_size;
int ret;
+ flags = res->flags;
res->flags |= IORESOURCE_UNSET;
if (!res->parent) {
dev_info(&dev->dev, "BAR %d: can't reassign an unassigned resource %pR\n",
@@ -333,14 +323,21 @@ int pci_reassign_resource(struct pci_dev *dev, int resno, resource_size_t addsiz
/* already aligned with min_align */
new_size = resource_size(res) + addsize;
ret = _pci_assign_resource(dev, resno, new_size, min_align);
- if (!ret) {
- res->flags &= ~IORESOURCE_UNSET;
- res->flags &= ~IORESOURCE_STARTALIGN;
- dev_info(&dev->dev, "BAR %d: reassigned %pR\n", resno, res);
- if (resno < PCI_BRIDGE_RESOURCES)
- pci_update_resource(dev, resno);
+ if (ret) {
+ res->flags = flags;
+ dev_info(&dev->dev, "BAR %d: %pR (failed to expand by %#llx)\n",
+ resno, res, (unsigned long long) addsize);
+ return ret;
}
- return ret;
+
+ res->flags &= ~IORESOURCE_UNSET;
+ res->flags &= ~IORESOURCE_STARTALIGN;
+ dev_info(&dev->dev, "BAR %d: reassigned %pR (expanded by %#llx)\n",
+ resno, res, (unsigned long long) addsize);
+ if (resno < PCI_BRIDGE_RESOURCES)
+ pci_update_resource(dev, resno);
+
+ return 0;
}
int pci_enable_resources(struct pci_dev *dev, int mask)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 17:31:37 +0000