Merging upstream version 6.7.12.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

12 files changed, 84 insertions, 18 deletions

diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index c2630db745..19b6708f60 100644
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -692,8 +692,13 @@ int dw_pcie_ep_init_complete(struct dw_pcie_ep *ep)
 		nbars = (reg & PCI_REBAR_CTRL_NBAR_MASK) >>
 			PCI_REBAR_CTRL_NBAR_SHIFT;
 
+		/*
+		 * PCIe r6.0, sec 7.8.6.2 require us to support at least one
+		 * size in the range from 1 MB to 512 GB. Advertise support
+		 * for 1 MB BAR size only.
+		 */
 		for (i = 0; i < nbars; i++, offset += PCI_REBAR_CTRL)
-			dw_pcie_writel_dbi(pci, offset + PCI_REBAR_CAP, 0x0);
+			dw_pcie_writel_dbi(pci, offset + PCI_REBAR_CAP, BIT(4));
 	}
 
 	/*
diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
index cbc3f08817..e3dc27f2ac 100644
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -53,6 +53,7 @@
 #define PARF_SLV_ADDR_SPACE_SIZE		0x358
 #define PARF_DEVICE_TYPE			0x1000
 #define PARF_BDF_TO_SID_TABLE_N			0x2000
+#define PARF_BDF_TO_SID_CFG			0x2c00
 
 /* ELBI registers */
 #define ELBI_SYS_CTRL				0x04
@@ -120,6 +121,9 @@
 /* PARF_DEVICE_TYPE register fields */
 #define DEVICE_TYPE_RC				0x4
 
+/* PARF_BDF_TO_SID_CFG fields */
+#define BDF_TO_SID_BYPASS			BIT(0)
+
 /* ELBI_SYS_CTRL register fields */
 #define ELBI_SYS_CTRL_LT_ENABLE			BIT(0)
 
@@ -229,6 +233,7 @@ struct qcom_pcie_ops {
 
 struct qcom_pcie_cfg {
 	const struct qcom_pcie_ops *ops;
+	bool no_l0s;
 };
 
 struct qcom_pcie {
@@ -272,6 +277,26 @@ static int qcom_pcie_start_link(struct dw_pcie *pci)
 	return 0;
 }
 
+static void qcom_pcie_clear_aspm_l0s(struct dw_pcie *pci)
+{
+	struct qcom_pcie *pcie = to_qcom_pcie(pci);
+	u16 offset;
+	u32 val;
+
+	if (!pcie->cfg->no_l0s)
+		return;
+
+	offset = dw_pcie_find_capability(pci, PCI_CAP_ID_EXP);
+
+	dw_pcie_dbi_ro_wr_en(pci);
+
+	val = readl(pci->dbi_base + offset + PCI_EXP_LNKCAP);
+	val &= ~PCI_EXP_LNKCAP_ASPM_L0S;
+	writel(val, pci->dbi_base + offset + PCI_EXP_LNKCAP);
+
+	dw_pcie_dbi_ro_wr_dis(pci);
+}
+
 static void qcom_pcie_clear_hpc(struct dw_pcie *pci)
 {
 	u16 offset = dw_pcie_find_capability(pci, PCI_CAP_ID_EXP);
@@ -961,6 +986,7 @@ err_disable_regulators:
 
 static int qcom_pcie_post_init_2_7_0(struct qcom_pcie *pcie)
 {
+	qcom_pcie_clear_aspm_l0s(pcie->pci);
 	qcom_pcie_clear_hpc(pcie->pci);
 
 	return 0;
@@ -1008,11 +1034,17 @@ static int qcom_pcie_config_sid_1_9_0(struct qcom_pcie *pcie)
 	u8 qcom_pcie_crc8_table[CRC8_TABLE_SIZE];
 	int i, nr_map, size = 0;
 	u32 smmu_sid_base;
+	u32 val;
 
 	of_get_property(dev->of_node, "iommu-map", &size);
 	if (!size)
 		return 0;
 
+	/* Enable BDF to SID translation by disabling bypass mode (default) */
+	val = readl(pcie->parf + PARF_BDF_TO_SID_CFG);
+	val &= ~BDF_TO_SID_BYPASS;
+	writel(val, pcie->parf + PARF_BDF_TO_SID_CFG);
+
 	map = kzalloc(size, GFP_KERNEL);
 	if (!map)
 		return -ENOMEM;
@@ -1358,6 +1390,11 @@ static const struct qcom_pcie_cfg cfg_2_9_0 = {
 	.ops = &ops_2_9_0,
 };
 
+static const struct qcom_pcie_cfg cfg_sc8280xp = {
+	.ops = &ops_1_9_0,
+	.no_l0s = true,
+};
+
 static const struct dw_pcie_ops dw_pcie_ops = {
 	.link_up = qcom_pcie_link_up,
 	.start_link = qcom_pcie_start_link,
@@ -1629,11 +1666,11 @@ static const struct of_device_id qcom_pcie_match[] = {
 	{ .compatible = "qcom,pcie-ipq8074-gen3", .data = &cfg_2_9_0 },
 	{ .compatible = "qcom,pcie-msm8996", .data = &cfg_2_3_2 },
 	{ .compatible = "qcom,pcie-qcs404", .data = &cfg_2_4_0 },
-	{ .compatible = "qcom,pcie-sa8540p", .data = &cfg_1_9_0 },
+	{ .compatible = "qcom,pcie-sa8540p", .data = &cfg_sc8280xp },
 	{ .compatible = "qcom,pcie-sa8775p", .data = &cfg_1_9_0},
 	{ .compatible = "qcom,pcie-sc7280", .data = &cfg_1_9_0 },
 	{ .compatible = "qcom,pcie-sc8180x", .data = &cfg_1_9_0 },
-	{ .compatible = "qcom,pcie-sc8280xp", .data = &cfg_1_9_0 },
+	{ .compatible = "qcom,pcie-sc8280xp", .data = &cfg_sc8280xp },
 	{ .compatible = "qcom,pcie-sdm845", .data = &cfg_2_7_0 },
 	{ .compatible = "qcom,pcie-sdx55", .data = &cfg_1_9_0 },
 	{ .compatible = "qcom,pcie-sm8150", .data = &cfg_1_9_0 },
diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c
index 30c7dfeccb..11cc354a30 100644
--- a/drivers/pci/controller/pci-hyperv.c
+++ b/drivers/pci/controller/pci-hyperv.c
@@ -49,6 +49,7 @@
 #include <linux/refcount.h>
 #include <linux/irqdomain.h>
 #include <linux/acpi.h>
+#include <linux/sizes.h>
 #include <asm/mshyperv.h>
 
 /*
@@ -465,7 +466,7 @@ struct pci_eject_response {
 	u32 status;
 } __packed;
 
-static int pci_ring_size = (4 * PAGE_SIZE);
+static int pci_ring_size = VMBUS_RING_SIZE(SZ_16K);
 
 /*
  * Driver specific state.
diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
index f9dd6622fe..e47a77f943 100644
--- a/drivers/pci/controller/pcie-brcmstb.c
+++ b/drivers/pci/controller/pcie-brcmstb.c
@@ -330,7 +330,7 @@ static int brcm_pcie_mdio_write(void __iomem *base, u8 port,
 	readl(base + PCIE_RC_DL_MDIO_ADDR);
 	writel(MDIO_DATA_DONE_MASK | wrdata, base + PCIE_RC_DL_MDIO_WR_DATA);
 
-	err = readw_poll_timeout_atomic(base + PCIE_RC_DL_MDIO_WR_DATA, data,
+	err = readl_poll_timeout_atomic(base + PCIE_RC_DL_MDIO_WR_DATA, data,
 					MDIO_WT_DONE(data), 10, 100);
 	return err;
 }
diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c
index 3f60128560..2b7bc5a731 100644
--- a/drivers/pci/endpoint/functions/pci-epf-vntb.c
+++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c
@@ -1278,15 +1278,11 @@ static int pci_vntb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	ret = ntb_register_device(&ndev->ntb);
 	if (ret) {
 		dev_err(dev, "Failed to register NTB device\n");
-		goto err_register_dev;
+		return ret;
 	}
 
 	dev_dbg(dev, "PCI Virtual NTB driver loaded\n");
 	return 0;
-
-err_register_dev:
-	put_device(&ndev->ntb.dev);
-	return -EINVAL;
 }
 
 static struct pci_device_id pci_vntb_table[] = {
diff --git a/drivers/pci/p2pdma.c b/drivers/pci/p2pdma.c
index 0c361561b8..4f47a13cb5 100644
--- a/drivers/pci/p2pdma.c
+++ b/drivers/pci/p2pdma.c
@@ -661,7 +661,7 @@ done:
 	p2pdma = rcu_dereference(provider->p2pdma);
 	if (p2pdma)
 		xa_store(&p2pdma->map_types, map_types_idx(client),
-			 xa_mk_value(map_type), GFP_KERNEL);
+			 xa_mk_value(map_type), GFP_ATOMIC);
 	rcu_read_unlock();
 	return map_type;
 }
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 51ec9e7e78..9c59bf03d6 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -473,6 +473,13 @@ static void pci_device_remove(struct device *dev)
 
 	if (drv->remove) {
 		pm_runtime_get_sync(dev);
+		/*
+		 * If the driver provides a .runtime_idle() callback and it has
+		 * started to run already, it may continue to run in parallel
+		 * with the code below, so wait until all of the runtime PM
+		 * activity has completed.
+		 */
+		pm_runtime_barrier(dev);
 		drv->remove(pci_dev);
 		pm_runtime_put_noidle(dev);
 	}
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 24ae29f0d3..1697cb8289 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -366,11 +366,6 @@ static inline int pci_dev_set_disconnected(struct pci_dev *dev, void *unused)
 	return 0;
 }
 
-static inline bool pci_dev_is_disconnected(const struct pci_dev *dev)
-{
-	return dev->error_state == pci_channel_io_perm_failure;
-}
-
 /* pci_dev priv_flags */
 #define PCI_DEV_ADDED 0
 #define PCI_DPC_RECOVERED 1
diff --git a/drivers/pci/pcie/dpc.c b/drivers/pci/pcie/dpc.c
index 94111e4382..e5d7c12854 100644
--- a/drivers/pci/pcie/dpc.c
+++ b/drivers/pci/pcie/dpc.c
@@ -234,7 +234,7 @@ static void dpc_process_rp_pio_error(struct pci_dev *pdev)
 
 	for (i = 0; i < pdev->dpc_rp_log_size - 5; i++) {
 		pci_read_config_dword(pdev,
-			cap + PCI_EXP_DPC_RP_PIO_TLPPREFIX_LOG, &prefix);
+			cap + PCI_EXP_DPC_RP_PIO_TLPPREFIX_LOG + i * 4, &prefix);
 		pci_err(pdev, "TLP Prefix Header: dw%d, %#010x\n", i, prefix);
 	}
  clear_status:
diff --git a/drivers/pci/pcie/err.c b/drivers/pci/pcie/err.c
index 59c90d04a6..705893b5f7 100644
--- a/drivers/pci/pcie/err.c
+++ b/drivers/pci/pcie/err.c
@@ -13,6 +13,7 @@
 #define dev_fmt(fmt) "AER: " fmt
 
 #include <linux/pci.h>
+#include <linux/pm_runtime.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
@@ -85,6 +86,18 @@ static int report_error_detected(struct pci_dev *dev,
 	return 0;
 }
 
+static int pci_pm_runtime_get_sync(struct pci_dev *pdev, void *data)
+{
+	pm_runtime_get_sync(&pdev->dev);
+	return 0;
+}
+
+static int pci_pm_runtime_put(struct pci_dev *pdev, void *data)
+{
+	pm_runtime_put(&pdev->dev);
+	return 0;
+}
+
 static int report_frozen_detected(struct pci_dev *dev, void *data)
 {
 	return report_error_detected(dev, pci_channel_io_frozen, data);
@@ -207,6 +220,8 @@ pci_ers_result_t pcie_do_recovery(struct pci_dev *dev,
 	else
 		bridge = pci_upstream_bridge(dev);
 
+	pci_walk_bridge(bridge, pci_pm_runtime_get_sync, NULL);
+
 	pci_dbg(bridge, "broadcast error_detected message\n");
 	if (state == pci_channel_io_frozen) {
 		pci_walk_bridge(bridge, report_frozen_detected, &status);
@@ -251,10 +266,15 @@ pci_ers_result_t pcie_do_recovery(struct pci_dev *dev,
 		pcie_clear_device_status(dev);
 		pci_aer_clear_nonfatal_status(dev);
 	}
+
+	pci_walk_bridge(bridge, pci_pm_runtime_put, NULL);
+
 	pci_info(bridge, "device recovery successful\n");
 	return status;
 
 failed:
+	pci_walk_bridge(bridge, pci_pm_runtime_put, NULL);
+
 	pci_uevent_ers(bridge, PCI_ERS_RESULT_DISCONNECT);
 
 	/* TODO: Should kernel panic here? */
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index a2bf6de114..fa770601c6 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -5520,6 +5520,7 @@ static void quirk_no_ext_tags(struct pci_dev *pdev)
 
 	pci_walk_bus(bridge->bus, pci_configure_extended_tags, NULL);
 }
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_3WARE, 0x1004, quirk_no_ext_tags);
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0132, quirk_no_ext_tags);
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0140, quirk_no_ext_tags);
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0141, quirk_no_ext_tags);
@@ -6218,6 +6219,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a2b, dpc_log_size);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a2d, dpc_log_size);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a2f, dpc_log_size);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a31, dpc_log_size);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0xa73f, dpc_log_size);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0xa76e, dpc_log_size);
 #endif
 
 /*
diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c
index 1804794d0e..5a4adf6c04 100644
--- a/drivers/pci/switch/switchtec.c
+++ b/drivers/pci/switch/switchtec.c
@@ -1672,7 +1672,7 @@ static int switchtec_pci_probe(struct pci_dev *pdev,
 	rc = switchtec_init_isr(stdev);
 	if (rc) {
 		dev_err(&stdev->dev, "failed to init isr.\n");
-		goto err_put;
+		goto err_exit_pci;
 	}
 
 	iowrite32(SWITCHTEC_EVENT_CLEAR |
@@ -1693,6 +1693,8 @@ static int switchtec_pci_probe(struct pci_dev *pdev,
 
 err_devadd:
 	stdev_kill(stdev);
+err_exit_pci:
+	switchtec_exit_pci(stdev);
 err_put:
 	ida_free(&switchtec_minor_ida, MINOR(stdev->dev.devt));
 	put_device(&stdev->dev);