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authorLinus Torvalds <torvalds@linux-foundation.org>2017-04-07 12:26:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-04-07 12:26:36 -0700
commitc2eb7beac7638566f20f705cee48e0a3cd4e48b7 (patch)
treefdb88e5644c0d04e840a8e280bb4079b002bc1c1
parent81d4bab4ce87228c37ab14a885438544af5c9ce6 (diff)
parent794a8604fe6e4a311373cde57a86ad4aab9d32b8 (diff)
Merge tag 'pci-v4.11-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas: - fix ThunderX legacy firmware resources - fix ARTPEC-6 and DesignWare platform driver NULL pointer dereferences - fix HiSilicon link error * tag 'pci-v4.11-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: dwc: Fix dw_pcie_ops NULL pointer dereference PCI: dwc: Select PCI_HOST_COMMON for hisi PCI: thunder-pem: Fix legacy firmware PEM-specific resources
-rw-r--r--drivers/pci/dwc/Kconfig1
-rw-r--r--drivers/pci/dwc/pcie-artpec6.c4
-rw-r--r--drivers/pci/dwc/pcie-designware-plat.c4
-rw-r--r--drivers/pci/host/pci-thunder-pem.c10
4 files changed, 17 insertions, 2 deletions
diff --git a/drivers/pci/dwc/Kconfig b/drivers/pci/dwc/Kconfig
index dfb8a69afc28..d2d2ba5b8a68 100644
--- a/drivers/pci/dwc/Kconfig
+++ b/drivers/pci/dwc/Kconfig
@@ -89,6 +89,7 @@ config PCI_HISI
depends on PCI_MSI_IRQ_DOMAIN
select PCIEPORTBUS
select PCIE_DW_HOST
+ select PCI_HOST_COMMON
help
Say Y here if you want PCIe controller support on HiSilicon
Hip05 and Hip06 SoCs
diff --git a/drivers/pci/dwc/pcie-artpec6.c b/drivers/pci/dwc/pcie-artpec6.c
index fcd3ef845883..6d23683c0892 100644
--- a/drivers/pci/dwc/pcie-artpec6.c
+++ b/drivers/pci/dwc/pcie-artpec6.c
@@ -234,6 +234,9 @@ static int artpec6_add_pcie_port(struct artpec6_pcie *artpec6_pcie,
return 0;
}
+static const struct dw_pcie_ops dw_pcie_ops = {
+};
+
static int artpec6_pcie_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -252,6 +255,7 @@ static int artpec6_pcie_probe(struct platform_device *pdev)
return -ENOMEM;
pci->dev = dev;
+ pci->ops = &dw_pcie_ops;
artpec6_pcie->pci = pci;
diff --git a/drivers/pci/dwc/pcie-designware-plat.c b/drivers/pci/dwc/pcie-designware-plat.c
index b6c832ba39dd..f20d494922ab 100644
--- a/drivers/pci/dwc/pcie-designware-plat.c
+++ b/drivers/pci/dwc/pcie-designware-plat.c
@@ -86,6 +86,9 @@ static int dw_plat_add_pcie_port(struct pcie_port *pp,
return 0;
}
+static const struct dw_pcie_ops dw_pcie_ops = {
+};
+
static int dw_plat_pcie_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -103,6 +106,7 @@ static int dw_plat_pcie_probe(struct platform_device *pdev)
return -ENOMEM;
pci->dev = dev;
+ pci->ops = &dw_pcie_ops;
dw_plat_pcie->pci = pci;
diff --git a/drivers/pci/host/pci-thunder-pem.c b/drivers/pci/host/pci-thunder-pem.c
index b89c373555c5..6e031b522529 100644
--- a/drivers/pci/host/pci-thunder-pem.c
+++ b/drivers/pci/host/pci-thunder-pem.c
@@ -375,7 +375,6 @@ static void thunder_pem_legacy_fw(struct acpi_pci_root *root,
index -= node * PEM_MAX_DOM_IN_NODE;
res_pem->start = PEM_RES_BASE | FIELD_PREP(PEM_NODE_MASK, node) |
FIELD_PREP(PEM_INDX_MASK, index);
- res_pem->end = res_pem->start + SZ_16M - 1;
res_pem->flags = IORESOURCE_MEM;
}
@@ -399,8 +398,15 @@ static int thunder_pem_acpi_init(struct pci_config_window *cfg)
*/
if (ret) {
thunder_pem_legacy_fw(root, res_pem);
- /* Reserve PEM-specific resources and PCI configuration space */
+ /*
+ * Reserve 64K size PEM specific resources. The full 16M range
+ * size is required for thunder_pem_init() call.
+ */
+ res_pem->end = res_pem->start + SZ_64K - 1;
thunder_pem_reserve_range(dev, root->segment, res_pem);
+ res_pem->end = res_pem->start + SZ_16M - 1;
+
+ /* Reserve PCI configuration space as well. */
thunder_pem_reserve_range(dev, root->segment, &cfg->res);
}