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Diffstat (limited to 'drivers/pci/pcie')
-rw-r--r--drivers/pci/pcie/aer/Kconfig2
-rw-r--r--drivers/pci/pcie/aer/Makefile3
-rw-r--r--drivers/pci/pcie/aer/aerdrv.c5
-rw-r--r--drivers/pci/pcie/aer/aerdrv.h14
-rw-r--r--drivers/pci/pcie/aer/aerdrv_acpi.c36
-rw-r--r--drivers/pci/pcie/aer/aerdrv_core.c34
6 files changed, 50 insertions, 44 deletions
diff --git a/drivers/pci/pcie/aer/Kconfig b/drivers/pci/pcie/aer/Kconfig
index 3f37a60a643..c3bde588aa1 100644
--- a/drivers/pci/pcie/aer/Kconfig
+++ b/drivers/pci/pcie/aer/Kconfig
@@ -4,7 +4,7 @@
config PCIEAER
boolean "Root Port Advanced Error Reporting support"
- depends on PCIEPORTBUS && ACPI
+ depends on PCIEPORTBUS
default y
help
This enables PCI Express Root Port Advanced Error Reporting
diff --git a/drivers/pci/pcie/aer/Makefile b/drivers/pci/pcie/aer/Makefile
index 15a4f40d520..8da3bd8455a 100644
--- a/drivers/pci/pcie/aer/Makefile
+++ b/drivers/pci/pcie/aer/Makefile
@@ -4,5 +4,6 @@
obj-$(CONFIG_PCIEAER) += aerdriver.o
-aerdriver-objs := aerdrv_errprint.o aerdrv_core.o aerdrv.o aerdrv_acpi.o
+aerdriver-objs := aerdrv_errprint.o aerdrv_core.o aerdrv.o
+aerdriver-$(CONFIG_ACPI) += aerdrv_acpi.o
diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c
index db6ad8e763a..ad90a01b0df 100644
--- a/drivers/pci/pcie/aer/aerdrv.c
+++ b/drivers/pci/pcie/aer/aerdrv.c
@@ -148,16 +148,15 @@ static struct aer_rpc* aer_alloc_rpc(struct pcie_device *dev)
{
struct aer_rpc *rpc;
- if (!(rpc = kmalloc(sizeof(struct aer_rpc),
+ if (!(rpc = kzalloc(sizeof(struct aer_rpc),
GFP_KERNEL)))
return NULL;
- memset(rpc, 0, sizeof(struct aer_rpc));
/*
* Initialize Root lock access, e_lock, to Root Error Status Reg,
* Root Error ID Reg, and Root error producer/consumer index.
*/
- rpc->e_lock = SPIN_LOCK_UNLOCKED;
+ spin_lock_init(&rpc->e_lock);
rpc->rpd = dev;
INIT_WORK(&rpc->dpc_handler, aer_isr);
diff --git a/drivers/pci/pcie/aer/aerdrv.h b/drivers/pci/pcie/aer/aerdrv.h
index 5cca394d599..c7ad68b6c6d 100644
--- a/drivers/pci/pcie/aer/aerdrv.h
+++ b/drivers/pci/pcie/aer/aerdrv.h
@@ -19,10 +19,6 @@
#define AER_ERROR_MASK 0x001fffff
#define AER_ERROR(d) (d & AER_ERROR_MASK)
-#define OSC_METHOD_RUN_SUCCESS 0
-#define OSC_METHOD_NOT_SUPPORTED 1
-#define OSC_METHOD_RUN_FAILURE 2
-
/* Root Error Status Register Bits */
#define ROOT_ERR_STATUS_MASKS 0x0f
@@ -121,6 +117,14 @@ extern void aer_delete_rootport(struct aer_rpc *rpc);
extern int aer_init(struct pcie_device *dev);
extern void aer_isr(struct work_struct *work);
extern void aer_print_error(struct pci_dev *dev, struct aer_err_info *info);
-extern int aer_osc_setup(struct pci_dev *dev);
+
+#ifdef CONFIG_ACPI
+extern int aer_osc_setup(struct pcie_device *pciedev);
+#else
+static inline int aer_osc_setup(struct pcie_device *pciedev)
+{
+ return 0;
+}
+#endif
#endif //_AERDRV_H_
diff --git a/drivers/pci/pcie/aer/aerdrv_acpi.c b/drivers/pci/pcie/aer/aerdrv_acpi.c
index fa68e89ebec..1a1eb45a779 100644
--- a/drivers/pci/pcie/aer/aerdrv_acpi.c
+++ b/drivers/pci/pcie/aer/aerdrv_acpi.c
@@ -20,19 +20,18 @@
/**
* aer_osc_setup - run ACPI _OSC method
+ * @pciedev: pcie_device which AER is being enabled on
*
- * Return:
- * Zero if success. Nonzero for otherwise.
+ * @return: Zero on success. Nonzero otherwise.
*
* Invoked when PCIE bus loads AER service driver. To avoid conflict with
* BIOS AER support requires BIOS to yield AER control to OS native driver.
**/
-int aer_osc_setup(struct pci_dev *dev)
+int aer_osc_setup(struct pcie_device *pciedev)
{
- int retval = OSC_METHOD_RUN_SUCCESS;
- acpi_status status;
- acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev);
- struct pci_dev *pdev = dev;
+ acpi_status status = AE_NOT_FOUND;
+ struct pci_dev *pdev = pciedev->port;
+ acpi_handle handle = DEVICE_ACPI_HANDLE(&pdev->dev);
struct pci_bus *parent;
while (!handle) {
@@ -50,19 +49,20 @@ int aer_osc_setup(struct pci_dev *dev)
pdev = parent->self;
}
- if (!handle)
- return OSC_METHOD_NOT_SUPPORTED;
+ if (handle) {
+ pci_osc_support_set(OSC_EXT_PCI_CONFIG_SUPPORT);
+ status = pci_osc_control_set(handle,
+ OSC_PCI_EXPRESS_AER_CONTROL |
+ OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
+ }
- pci_osc_support_set(OSC_EXT_PCI_CONFIG_SUPPORT);
- status = pci_osc_control_set(handle, OSC_PCI_EXPRESS_AER_CONTROL |
- OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
if (ACPI_FAILURE(status)) {
- if (status == AE_SUPPORT)
- retval = OSC_METHOD_NOT_SUPPORTED;
- else
- retval = OSC_METHOD_RUN_FAILURE;
+ printk(KERN_DEBUG "AER service couldn't init device %s - %s\n",
+ pciedev->device.bus_id,
+ (status == AE_SUPPORT || status == AE_NOT_FOUND) ?
+ "no _OSC support" : "Run ACPI _OSC fails");
+ return -1;
}
- return retval;
+ return 0;
}
-
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index 08e13033ced..92a8469b21b 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -22,8 +22,6 @@
#include <linux/errno.h>
#include <linux/pm.h>
#include <linux/suspend.h>
-#include <linux/acpi.h>
-#include <linux/pci-acpi.h>
#include <linux/delay.h>
#include "aerdrv.h"
@@ -119,6 +117,21 @@ int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
return 0;
}
+int pci_cleanup_aer_correct_error_status(struct pci_dev *dev)
+{
+ int pos;
+ u32 status;
+
+ pos = pci_find_aer_capability(dev);
+ if (!pos)
+ return -EIO;
+
+ pci_read_config_dword(dev, pos + PCI_ERR_COR_STATUS, &status);
+ pci_write_config_dword(dev, pos + PCI_ERR_COR_STATUS, status);
+
+ return 0;
+}
+
static int find_device_iter(struct device *device, void *data)
{
struct pci_dev *dev;
@@ -733,20 +746,8 @@ void aer_delete_rootport(struct aer_rpc *rpc)
**/
int aer_init(struct pcie_device *dev)
{
- int status;
-
- /* Run _OSC Method */
- status = aer_osc_setup(dev->port);
-
- if(status != OSC_METHOD_RUN_SUCCESS) {
- printk(KERN_DEBUG "%s: AER service init fails - %s\n",
- __FUNCTION__,
- (status == OSC_METHOD_NOT_SUPPORTED) ?
- "No ACPI _OSC support" : "Run ACPI _OSC fails");
-
- if (!forceload)
- return status;
- }
+ if (aer_osc_setup(dev) && !forceload)
+ return -ENXIO;
return AER_SUCCESS;
}
@@ -755,4 +756,5 @@ EXPORT_SYMBOL_GPL(pci_find_aer_capability);
EXPORT_SYMBOL_GPL(pci_enable_pcie_error_reporting);
EXPORT_SYMBOL_GPL(pci_disable_pcie_error_reporting);
EXPORT_SYMBOL_GPL(pci_cleanup_aer_uncorrect_error_status);
+EXPORT_SYMBOL_GPL(pci_cleanup_aer_correct_error_status);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 10:19:15 +0000