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-rw-r--r--Documentation/admin-guide/kernel-parameters.txt4
-rw-r--r--drivers/pci/controller/dwc/pcie-histb.c1
-rw-r--r--drivers/pci/controller/mobiveil/pcie-mobiveil-plat.c1
-rw-r--r--drivers/pci/controller/pci-loongson.c71
-rw-r--r--drivers/pci/controller/pci-tegra.c1
-rw-r--r--drivers/pci/controller/pci-versatile.c1
-rw-r--r--drivers/pci/controller/pcie-hisi-error.c1
-rw-r--r--drivers/pci/controller/pcie-microchip-host.c1
-rw-r--r--drivers/pci/endpoint/pci-ep-cfs.c1
-rw-r--r--drivers/pci/endpoint/pci-epc-core.c1
-rw-r--r--drivers/pci/endpoint/pci-epc-mem.c1
-rw-r--r--drivers/pci/endpoint/pci-epf-core.c1
-rw-r--r--drivers/pci/hotplug/acpiphp_core.c1
-rw-r--r--drivers/pci/hotplug/pciehp_hpc.c2
-rw-r--r--drivers/pci/hotplug/shpchp_core.c1
-rw-r--r--drivers/pci/iov.c2
-rw-r--r--drivers/pci/p2pdma.c8
-rw-r--r--drivers/pci/pci.c10
-rw-r--r--drivers/pci/pci.h43
-rw-r--r--drivers/pci/pcie/aer.c51
-rw-r--r--drivers/pci/pcie/portdrv.c16
-rw-r--r--drivers/pci/probe.c2
-rw-r--r--include/linux/pci.h1
23 files changed, 90 insertions, 132 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 6cfa6e3996cf..ecdb9530af8a 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4296,7 +4296,9 @@
specified, e.g., 12@pci:8086:9c22:103c:198f
for 4096-byte alignment.
ecrc= Enable/disable PCIe ECRC (transaction layer
- end-to-end CRC checking).
+ end-to-end CRC checking). Only effective if
+ OS has native AER control (either granted by
+ ACPI _OSC or forced via "pcie_ports=native")
bios: Use BIOS/firmware settings. This is the
the default.
off: Turn ECRC off
diff --git a/drivers/pci/controller/dwc/pcie-histb.c b/drivers/pci/controller/dwc/pcie-histb.c
index 43c27812dd6d..927ae05dc920 100644
--- a/drivers/pci/controller/dwc/pcie-histb.c
+++ b/drivers/pci/controller/dwc/pcie-histb.c
@@ -450,4 +450,3 @@ static struct platform_driver histb_pcie_platform_driver = {
module_platform_driver(histb_pcie_platform_driver);
MODULE_DESCRIPTION("HiSilicon STB PCIe host controller driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/pci/controller/mobiveil/pcie-mobiveil-plat.c b/drivers/pci/controller/mobiveil/pcie-mobiveil-plat.c
index f6fcd95c2bf5..c5bb87ff6d9a 100644
--- a/drivers/pci/controller/mobiveil/pcie-mobiveil-plat.c
+++ b/drivers/pci/controller/mobiveil/pcie-mobiveil-plat.c
@@ -56,6 +56,5 @@ static struct platform_driver mobiveil_pcie_driver = {
builtin_platform_driver(mobiveil_pcie_driver);
-MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("Mobiveil PCIe host controller driver");
MODULE_AUTHOR("Subrahmanya Lingappa <l.subrahmanya@mobiveil.co.in>");
diff --git a/drivers/pci/controller/pci-loongson.c b/drivers/pci/controller/pci-loongson.c
index 05c50408f13b..fe0f732f6e43 100644
--- a/drivers/pci/controller/pci-loongson.c
+++ b/drivers/pci/controller/pci-loongson.c
@@ -15,9 +15,14 @@
#include "../pci.h"
/* Device IDs */
-#define DEV_PCIE_PORT_0 0x7a09
-#define DEV_PCIE_PORT_1 0x7a19
-#define DEV_PCIE_PORT_2 0x7a29
+#define DEV_LS2K_PCIE_PORT0 0x1a05
+#define DEV_LS7A_PCIE_PORT0 0x7a09
+#define DEV_LS7A_PCIE_PORT1 0x7a19
+#define DEV_LS7A_PCIE_PORT2 0x7a29
+#define DEV_LS7A_PCIE_PORT3 0x7a39
+#define DEV_LS7A_PCIE_PORT4 0x7a49
+#define DEV_LS7A_PCIE_PORT5 0x7a59
+#define DEV_LS7A_PCIE_PORT6 0x7a69
#define DEV_LS2K_APB 0x7a02
#define DEV_LS7A_GMAC 0x7a03
@@ -53,11 +58,11 @@ static void bridge_class_quirk(struct pci_dev *dev)
dev->class = PCI_CLASS_BRIDGE_PCI_NORMAL;
}
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_LOONGSON,
- DEV_PCIE_PORT_0, bridge_class_quirk);
+ DEV_LS7A_PCIE_PORT0, bridge_class_quirk);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_LOONGSON,
- DEV_PCIE_PORT_1, bridge_class_quirk);
+ DEV_LS7A_PCIE_PORT1, bridge_class_quirk);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_LOONGSON,
- DEV_PCIE_PORT_2, bridge_class_quirk);
+ DEV_LS7A_PCIE_PORT2, bridge_class_quirk);
static void system_bus_quirk(struct pci_dev *pdev)
{
@@ -75,37 +80,33 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_LOONGSON,
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_LOONGSON,
DEV_LS7A_LPC, system_bus_quirk);
-static void loongson_mrrs_quirk(struct pci_dev *dev)
+static void loongson_mrrs_quirk(struct pci_dev *pdev)
{
- struct pci_bus *bus = dev->bus;
- struct pci_dev *bridge;
- static const struct pci_device_id bridge_devids[] = {
- { PCI_VDEVICE(LOONGSON, DEV_PCIE_PORT_0) },
- { PCI_VDEVICE(LOONGSON, DEV_PCIE_PORT_1) },
- { PCI_VDEVICE(LOONGSON, DEV_PCIE_PORT_2) },
- { 0, },
- };
-
- /* look for the matching bridge */
- while (!pci_is_root_bus(bus)) {
- bridge = bus->self;
- bus = bus->parent;
- /*
- * Some Loongson PCIe ports have a h/w limitation of
- * 256 bytes maximum read request size. They can't handle
- * anything larger than this. So force this limit on
- * any devices attached under these ports.
- */
- if (pci_match_id(bridge_devids, bridge)) {
- if (pcie_get_readrq(dev) > 256) {
- pci_info(dev, "limiting MRRS to 256\n");
- pcie_set_readrq(dev, 256);
- }
- break;
- }
- }
+ /*
+ * Some Loongson PCIe ports have h/w limitations of maximum read
+ * request size. They can't handle anything larger than this. So
+ * force this limit on any devices attached under these ports.
+ */
+ struct pci_host_bridge *bridge = pci_find_host_bridge(pdev->bus);
+
+ bridge->no_inc_mrrs = 1;
}
-DECLARE_PCI_FIXUP_ENABLE(PCI_ANY_ID, PCI_ANY_ID, loongson_mrrs_quirk);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_LOONGSON,
+ DEV_LS2K_PCIE_PORT0, loongson_mrrs_quirk);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_LOONGSON,
+ DEV_LS7A_PCIE_PORT0, loongson_mrrs_quirk);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_LOONGSON,
+ DEV_LS7A_PCIE_PORT1, loongson_mrrs_quirk);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_LOONGSON,
+ DEV_LS7A_PCIE_PORT2, loongson_mrrs_quirk);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_LOONGSON,
+ DEV_LS7A_PCIE_PORT3, loongson_mrrs_quirk);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_LOONGSON,
+ DEV_LS7A_PCIE_PORT4, loongson_mrrs_quirk);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_LOONGSON,
+ DEV_LS7A_PCIE_PORT5, loongson_mrrs_quirk);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_LOONGSON,
+ DEV_LS7A_PCIE_PORT6, loongson_mrrs_quirk);
static void loongson_pci_pin_quirk(struct pci_dev *pdev)
{
diff --git a/drivers/pci/controller/pci-tegra.c b/drivers/pci/controller/pci-tegra.c
index 929f9363e94b..5bb05564d6f8 100644
--- a/drivers/pci/controller/pci-tegra.c
+++ b/drivers/pci/controller/pci-tegra.c
@@ -2814,4 +2814,3 @@ static struct platform_driver tegra_pcie_driver = {
.remove = tegra_pcie_remove,
};
module_platform_driver(tegra_pcie_driver);
-MODULE_LICENSE("GPL");
diff --git a/drivers/pci/controller/pci-versatile.c b/drivers/pci/controller/pci-versatile.c
index 7991d334e0f1..e9a6758fe2c1 100644
--- a/drivers/pci/controller/pci-versatile.c
+++ b/drivers/pci/controller/pci-versatile.c
@@ -169,4 +169,3 @@ static struct platform_driver versatile_pci_driver = {
module_platform_driver(versatile_pci_driver);
MODULE_DESCRIPTION("Versatile PCI driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/pci/controller/pcie-hisi-error.c b/drivers/pci/controller/pcie-hisi-error.c
index 7959c9c8d2bc..7d88eb696b06 100644
--- a/drivers/pci/controller/pcie-hisi-error.c
+++ b/drivers/pci/controller/pcie-hisi-error.c
@@ -324,4 +324,3 @@ static struct platform_driver hisi_pcie_error_handler_driver = {
module_platform_driver(hisi_pcie_error_handler_driver);
MODULE_DESCRIPTION("HiSilicon HIP PCIe controller error handling driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/pci/controller/pcie-microchip-host.c b/drivers/pci/controller/pcie-microchip-host.c
index 0ebf7015e9af..5e710e485464 100644
--- a/drivers/pci/controller/pcie-microchip-host.c
+++ b/drivers/pci/controller/pcie-microchip-host.c
@@ -1135,6 +1135,5 @@ static struct platform_driver mc_pcie_driver = {
};
builtin_platform_driver(mc_pcie_driver);
-MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Microchip PCIe host controller driver");
MODULE_AUTHOR("Daire McNamara <daire.mcnamara@microchip.com>");
diff --git a/drivers/pci/endpoint/pci-ep-cfs.c b/drivers/pci/endpoint/pci-ep-cfs.c
index d4850bdd837f..4b8ac0ac84d5 100644
--- a/drivers/pci/endpoint/pci-ep-cfs.c
+++ b/drivers/pci/endpoint/pci-ep-cfs.c
@@ -728,4 +728,3 @@ module_exit(pci_ep_cfs_exit);
MODULE_DESCRIPTION("PCI EP CONFIGFS");
MODULE_AUTHOR("Kishon Vijay Abraham I <kishon@ti.com>");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/pci/endpoint/pci-epc-core.c b/drivers/pci/endpoint/pci-epc-core.c
index 2542196e8c3d..dd750ad29485 100644
--- a/drivers/pci/endpoint/pci-epc-core.c
+++ b/drivers/pci/endpoint/pci-epc-core.c
@@ -861,4 +861,3 @@ module_exit(pci_epc_exit);
MODULE_DESCRIPTION("PCI EPC Library");
MODULE_AUTHOR("Kishon Vijay Abraham I <kishon@ti.com>");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/pci/endpoint/pci-epc-mem.c b/drivers/pci/endpoint/pci-epc-mem.c
index a97b56a6d2db..7dcf6f480b82 100644
--- a/drivers/pci/endpoint/pci-epc-mem.c
+++ b/drivers/pci/endpoint/pci-epc-mem.c
@@ -260,4 +260,3 @@ EXPORT_SYMBOL_GPL(pci_epc_mem_free_addr);
MODULE_DESCRIPTION("PCI EPC Address Space Management");
MODULE_AUTHOR("Kishon Vijay Abraham I <kishon@ti.com>");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/pci/endpoint/pci-epf-core.c b/drivers/pci/endpoint/pci-epf-core.c
index 9ed556936f48..2036e38be093 100644
--- a/drivers/pci/endpoint/pci-epf-core.c
+++ b/drivers/pci/endpoint/pci-epf-core.c
@@ -568,4 +568,3 @@ module_exit(pci_epf_exit);
MODULE_DESCRIPTION("PCI EPF Library");
MODULE_AUTHOR("Kishon Vijay Abraham I <kishon@ti.com>");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c
index 853e04ad272c..c02257f4b61c 100644
--- a/drivers/pci/hotplug/acpiphp_core.c
+++ b/drivers/pci/hotplug/acpiphp_core.c
@@ -45,7 +45,6 @@ static struct acpiphp_attention_info *attention_info;
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
MODULE_PARM_DESC(disable, "disable acpiphp driver");
module_param_named(disable, acpiphp_disabled, bool, 0444);
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 10e9670eea0b..f8c70115b691 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -1088,6 +1088,8 @@ static void quirk_cmd_compl(struct pci_dev *pdev)
}
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
PCI_CLASS_BRIDGE_PCI, 8, quirk_cmd_compl);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_QCOM, 0x010e,
+ PCI_CLASS_BRIDGE_PCI, 8, quirk_cmd_compl);
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_QCOM, 0x0110,
PCI_CLASS_BRIDGE_PCI, 8, quirk_cmd_compl);
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_QCOM, 0x0400,
diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c
index 53692b048301..56c7795ed890 100644
--- a/drivers/pci/hotplug/shpchp_core.c
+++ b/drivers/pci/hotplug/shpchp_core.c
@@ -32,7 +32,6 @@ int shpchp_poll_time;
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
module_param(shpchp_debug, bool, 0644);
module_param(shpchp_poll_mode, bool, 0644);
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index 952217572113..b2e8322755c1 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -14,7 +14,7 @@
#include <linux/delay.h>
#include "pci.h"
-#define VIRTFN_ID_LEN 16
+#define VIRTFN_ID_LEN 17 /* "virtfn%u\0" for 2^32 - 1 */
int pci_iov_virtfn_bus(struct pci_dev *dev, int vf_id)
{
diff --git a/drivers/pci/p2pdma.c b/drivers/pci/p2pdma.c
index 86812d2073ea..9e8205572830 100644
--- a/drivers/pci/p2pdma.c
+++ b/drivers/pci/p2pdma.c
@@ -194,11 +194,13 @@ static const struct attribute_group p2pmem_group = {
static void p2pdma_page_free(struct page *page)
{
struct pci_p2pdma_pagemap *pgmap = to_p2p_pgmap(page->pgmap);
+ /* safe to dereference while a reference is held to the percpu ref */
+ struct pci_p2pdma *p2pdma =
+ rcu_dereference_protected(pgmap->provider->p2pdma, 1);
struct percpu_ref *ref;
- gen_pool_free_owner(pgmap->provider->p2pdma->pool,
- (uintptr_t)page_to_virt(page), PAGE_SIZE,
- (void **)&ref);
+ gen_pool_free_owner(p2pdma->pool, (uintptr_t)page_to_virt(page),
+ PAGE_SIZE, (void **)&ref);
percpu_ref_put(ref);
}
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index fba95486caaf..9d98bba72af9 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -6033,6 +6033,7 @@ int pcie_set_readrq(struct pci_dev *dev, int rq)
{
u16 v;
int ret;
+ struct pci_host_bridge *bridge = pci_find_host_bridge(dev->bus);
if (rq < 128 || rq > 4096 || !is_power_of_2(rq))
return -EINVAL;
@@ -6051,6 +6052,15 @@ int pcie_set_readrq(struct pci_dev *dev, int rq)
v = (ffs(rq) - 8) << 12;
+ if (bridge->no_inc_mrrs) {
+ int max_mrrs = pcie_get_readrq(dev);
+
+ if (rq > max_mrrs) {
+ pci_info(dev, "can't set Max_Read_Request_Size to %d; max is %d\n", rq, max_mrrs);
+ return -EINVAL;
+ }
+ }
+
ret = pcie_capability_clear_and_set_word(dev, PCI_EXP_DEVCTL,
PCI_EXP_DEVCTL_READRQ, v);
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 9ed3b5550043..5d5a44aaafe8 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -310,53 +310,36 @@ struct pci_sriov {
* @dev: PCI device to set new error_state
* @new: the state we want dev to be in
*
- * Must be called with device_lock held.
+ * If the device is experiencing perm_failure, it has to remain in that state.
+ * Any other transition is allowed.
*
* Returns true if state has been changed to the requested state.
*/
static inline bool pci_dev_set_io_state(struct pci_dev *dev,
pci_channel_state_t new)
{
- bool changed = false;
+ pci_channel_state_t old;
- device_lock_assert(&dev->dev);
switch (new) {
case pci_channel_io_perm_failure:
- switch (dev->error_state) {
- case pci_channel_io_frozen:
- case pci_channel_io_normal:
- case pci_channel_io_perm_failure:
- changed = true;
- break;
- }
- break;
+ xchg(&dev->error_state, pci_channel_io_perm_failure);
+ return true;
case pci_channel_io_frozen:
- switch (dev->error_state) {
- case pci_channel_io_frozen:
- case pci_channel_io_normal:
- changed = true;
- break;
- }
- break;
+ old = cmpxchg(&dev->error_state, pci_channel_io_normal,
+ pci_channel_io_frozen);
+ return old != pci_channel_io_perm_failure;
case pci_channel_io_normal:
- switch (dev->error_state) {
- case pci_channel_io_frozen:
- case pci_channel_io_normal:
- changed = true;
- break;
- }
- break;
+ old = cmpxchg(&dev->error_state, pci_channel_io_frozen,
+ pci_channel_io_normal);
+ return old != pci_channel_io_perm_failure;
+ default:
+ return false;
}
- if (changed)
- dev->error_state = new;
- return changed;
}
static inline int pci_dev_set_disconnected(struct pci_dev *dev, void *unused)
{
- device_lock(&dev->dev);
pci_dev_set_io_state(dev, pci_channel_io_perm_failure);
- device_unlock(&dev->dev);
return 0;
}
diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c
index 625f7b2cafe4..f6c24ded134c 100644
--- a/drivers/pci/pcie/aer.c
+++ b/drivers/pci/pcie/aer.c
@@ -184,6 +184,9 @@ static int disable_ecrc_checking(struct pci_dev *dev)
*/
void pcie_set_ecrc_checking(struct pci_dev *dev)
{
+ if (!pcie_aer_is_native(dev))
+ return;
+
switch (ecrc_policy) {
case ECRC_POLICY_DEFAULT:
return;
@@ -1224,42 +1227,6 @@ static irqreturn_t aer_irq(int irq, void *context)
return IRQ_WAKE_THREAD;
}
-static int set_device_error_reporting(struct pci_dev *dev, void *data)
-{
- bool enable = *((bool *)data);
- int type = pci_pcie_type(dev);
-
- if ((type == PCI_EXP_TYPE_ROOT_PORT) ||
- (type == PCI_EXP_TYPE_RC_EC) ||
- (type == PCI_EXP_TYPE_UPSTREAM) ||
- (type == PCI_EXP_TYPE_DOWNSTREAM)) {
- if (enable)
- pci_enable_pcie_error_reporting(dev);
- else
- pci_disable_pcie_error_reporting(dev);
- }
-
- return 0;
-}
-
-/**
- * set_downstream_devices_error_reporting - enable/disable the error reporting bits on the root port and its downstream ports.
- * @dev: pointer to root port's pci_dev data structure
- * @enable: true = enable error reporting, false = disable error reporting.
- */
-static void set_downstream_devices_error_reporting(struct pci_dev *dev,
- bool enable)
-{
- set_device_error_reporting(dev, &enable);
-
- if (pci_pcie_type(dev) == PCI_EXP_TYPE_RC_EC)
- pcie_walk_rcec(dev, set_device_error_reporting, &enable);
- else if (dev->subordinate)
- pci_walk_bus(dev->subordinate, set_device_error_reporting,
- &enable);
-
-}
-
/**
* aer_enable_rootport - enable Root Port's interrupts when receiving messages
* @rpc: pointer to a Root Port data structure
@@ -1289,12 +1256,6 @@ static void aer_enable_rootport(struct aer_rpc *rpc)
pci_read_config_dword(pdev, aer + PCI_ERR_UNCOR_STATUS, &reg32);
pci_write_config_dword(pdev, aer + PCI_ERR_UNCOR_STATUS, reg32);
- /*
- * Enable error reporting for the root port device and downstream port
- * devices.
- */
- set_downstream_devices_error_reporting(pdev, true);
-
/* Enable Root Port's interrupt in response to error messages */
pci_read_config_dword(pdev, aer + PCI_ERR_ROOT_COMMAND, &reg32);
reg32 |= ROOT_PORT_INTR_ON_MESG_MASK;
@@ -1313,12 +1274,6 @@ static void aer_disable_rootport(struct aer_rpc *rpc)
int aer = pdev->aer_cap;
u32 reg32;
- /*
- * Disable error reporting for the root port device and downstream port
- * devices.
- */
- set_downstream_devices_error_reporting(pdev, false);
-
/* Disable Root's interrupt in response to error messages */
pci_read_config_dword(pdev, aer + PCI_ERR_ROOT_COMMAND, &reg32);
reg32 &= ~ROOT_PORT_INTR_ON_MESG_MASK;
diff --git a/drivers/pci/pcie/portdrv.c b/drivers/pci/pcie/portdrv.c
index 2cc2e60bcb39..46fad0d813b2 100644
--- a/drivers/pci/pcie/portdrv.c
+++ b/drivers/pci/pcie/portdrv.c
@@ -501,7 +501,6 @@ static void pcie_port_device_remove(struct pci_dev *dev)
{
device_for_each_child(&dev->dev, NULL, remove_iter);
pci_free_irq_vectors(dev);
- pci_disable_device(dev);
}
/**
@@ -727,6 +726,19 @@ static void pcie_portdrv_remove(struct pci_dev *dev)
}
pcie_port_device_remove(dev);
+
+ pci_disable_device(dev);
+}
+
+static void pcie_portdrv_shutdown(struct pci_dev *dev)
+{
+ if (pci_bridge_d3_possible(dev)) {
+ pm_runtime_forbid(&dev->dev);
+ pm_runtime_get_noresume(&dev->dev);
+ pm_runtime_dont_use_autosuspend(&dev->dev);
+ }
+
+ pcie_port_device_remove(dev);
}
static pci_ers_result_t pcie_portdrv_error_detected(struct pci_dev *dev,
@@ -777,7 +789,7 @@ static struct pci_driver pcie_portdriver = {
.probe = pcie_portdrv_probe,
.remove = pcie_portdrv_remove,
- .shutdown = pcie_portdrv_remove,
+ .shutdown = pcie_portdrv_shutdown,
.err_handler = &pcie_portdrv_err_handler,
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 1779582fb500..b1d80c1d7a69 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1841,6 +1841,8 @@ int pci_setup_device(struct pci_dev *dev)
pci_set_of_node(dev);
pci_set_acpi_fwnode(dev);
+ if (dev->dev.fwnode && !fwnode_device_is_available(dev->dev.fwnode))
+ return -ENODEV;
pci_dev_assign_slot(dev);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index adffd65e84b4..3df2049ec4a8 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -572,6 +572,7 @@ struct pci_host_bridge {
void *release_data;
unsigned int ignore_reset_delay:1; /* For entire hierarchy */
unsigned int no_ext_tags:1; /* No Extended Tags */
+ unsigned int no_inc_mrrs:1; /* No Increase MRRS */
unsigned int native_aer:1; /* OS may use PCIe AER */
unsigned int native_pcie_hotplug:1; /* OS may use PCIe hotplug */
unsigned int native_shpc_hotplug:1; /* OS may use SHPC hotplug */