Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (27 commits)
  ACPI: Don't let acpi_pad needlessly mark TSC unstable
  drivers/acpi/sleep.h: Checkpatch cleanup
  ACPI: Minor cleanup eliminating redundant PMTIMER_TICKS to NS conversion
  ACPI: delete unused c-state promotion/demotion data strucutures
  ACPI: video: fix acpi_backlight=video
  ACPI: EC: Use kmemdup
  drivers/acpi: use kasprintf
  ACPI, APEI, EINJ injection parameters support
  Add x64 support to debugfs
  ACPI, APEI, Use ERST for persistent storage of MCE
  ACPI, APEI, Error Record Serialization Table (ERST) support
  ACPI, APEI, Generic Hardware Error Source memory error support
  ACPI, APEI, UEFI Common Platform Error Record (CPER) header
  Unified UUID/GUID definition
  ACPI Hardware Error Device (PNP0C33) support
  ACPI, APEI, PCIE AER, use general HEST table parsing in AER firmware_first setup
  ACPI, APEI, Document for APEI
  ACPI, APEI, EINJ support
  ACPI, APEI, HEST table parsing
  ACPI, APEI, APEI supporting infrastructure
  ...

3 files changed, 98 insertions, 4 deletions

diff --git a/drivers/pci/pcie/aer/aerdrv.h b/drivers/pci/pcie/aer/aerdrv.h
index 7aaae2d2bd67..80c11d131499 100644
--- a/drivers/pci/pcie/aer/aerdrv.h
+++ b/drivers/pci/pcie/aer/aerdrv.h
@@ -130,4 +130,21 @@ static inline int aer_osc_setup(struct pcie_device *pciedev)
 }
 #endif
 
+#ifdef CONFIG_ACPI_APEI
+extern int pcie_aer_get_firmware_first(struct pci_dev *pci_dev);
+#else
+static inline int pcie_aer_get_firmware_first(struct pci_dev *pci_dev)
+{
+        if (pci_dev->__aer_firmware_first_valid)
+                return pci_dev->__aer_firmware_first;
+        return 0;
+}
+#endif
+
+static inline void pcie_aer_force_firmware_first(struct pci_dev *pci_dev,
+                                                 int enable)
+{
+        pci_dev->__aer_firmware_first = !!enable;
+        pci_dev->__aer_firmware_first_valid = 1;
+}
 #endif /* _AERDRV_H_ */
diff --git a/drivers/pci/pcie/aer/aerdrv_acpi.c b/drivers/pci/pcie/aer/aerdrv_acpi.c
index 04814087658d..f278d7b0d95d 100644
--- a/drivers/pci/pcie/aer/aerdrv_acpi.c
+++ b/drivers/pci/pcie/aer/aerdrv_acpi.c
@@ -16,6 +16,7 @@
 #include <linux/acpi.h>
 #include <linux/pci-acpi.h>
 #include <linux/delay.h>
+#include <acpi/apei.h>
 #include "aerdrv.h"
 
 /**
@@ -53,3 +54,79 @@ int aer_osc_setup(struct pcie_device *pciedev)
 
         return 0;
 }
+
+#ifdef CONFIG_ACPI_APEI
+static inline int hest_match_pci(struct acpi_hest_aer_common *p,
+                                 struct pci_dev *pci)
+{
+        return  (0           == pci_domain_nr(pci->bus) &&
+                 p->bus      == pci->bus->number &&
+                 p->device   == PCI_SLOT(pci->devfn) &&
+                 p->function == PCI_FUNC(pci->devfn));
+}
+
+struct aer_hest_parse_info {
+        struct pci_dev *pci_dev;
+        int firmware_first;
+};
+
+static int aer_hest_parse(struct acpi_hest_header *hest_hdr, void *data)
+{
+        struct aer_hest_parse_info *info = data;
+        struct acpi_hest_aer_common *p;
+        u8 pcie_type = 0;
+        u8 bridge = 0;
+        int ff = 0;
+
+        switch (hest_hdr->type) {
+        case ACPI_HEST_TYPE_AER_ROOT_PORT:
+                pcie_type = PCI_EXP_TYPE_ROOT_PORT;
+                break;
+        case ACPI_HEST_TYPE_AER_ENDPOINT:
+                pcie_type = PCI_EXP_TYPE_ENDPOINT;
+                break;
+        case ACPI_HEST_TYPE_AER_BRIDGE:
+                if ((info->pci_dev->class >> 16) == PCI_BASE_CLASS_BRIDGE)
+                        bridge = 1;
+                break;
+        default:
+                return 0;
+        }
+
+        p = (struct acpi_hest_aer_common *)(hest_hdr + 1);
+        if (p->flags & ACPI_HEST_GLOBAL) {
+                if ((info->pci_dev->is_pcie &&
+                     info->pci_dev->pcie_type == pcie_type) || bridge)
+                        ff = !!(p->flags & ACPI_HEST_FIRMWARE_FIRST);
+        } else
+                if (hest_match_pci(p, info->pci_dev))
+                        ff = !!(p->flags & ACPI_HEST_FIRMWARE_FIRST);
+        info->firmware_first = ff;
+
+        return 0;
+}
+
+static void aer_set_firmware_first(struct pci_dev *pci_dev)
+{
+        int rc;
+        struct aer_hest_parse_info info = {
+                .pci_dev        = pci_dev,
+                .firmware_first = 0,
+        };
+
+        rc = apei_hest_parse(aer_hest_parse, &info);
+
+        if (rc)
+                pci_dev->__aer_firmware_first = 0;
+        else
+                pci_dev->__aer_firmware_first = info.firmware_first;
+        pci_dev->__aer_firmware_first_valid = 1;
+}
+
+int pcie_aer_get_firmware_first(struct pci_dev *dev)
+{
+        if (!dev->__aer_firmware_first_valid)
+                aer_set_firmware_first(dev);
+        return dev->__aer_firmware_first;
+}
+#endif
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index df2d686fe3dd..8af4f619bba2 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -36,7 +36,7 @@ int pci_enable_pcie_error_reporting(struct pci_dev *dev)
         u16 reg16 = 0;
         int pos;
 
-        if (dev->aer_firmware_first)
+        if (pcie_aer_get_firmware_first(dev))
                 return -EIO;
 
         pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
@@ -63,7 +63,7 @@ int pci_disable_pcie_error_reporting(struct pci_dev *dev)
         u16 reg16 = 0;
         int pos;
 
-        if (dev->aer_firmware_first)
+        if (pcie_aer_get_firmware_first(dev))
                 return -EIO;
 
         pos = pci_pcie_cap(dev);
@@ -771,7 +771,7 @@ void aer_isr(struct work_struct *work)
  */
 int aer_init(struct pcie_device *dev)
 {
-        if (dev->port->aer_firmware_first) {
+        if (pcie_aer_get_firmware_first(dev->port)) {
                 dev_printk(KERN_DEBUG, &dev->device,
                            "PCIe errors handled by platform firmware.\n");
                 goto out;
@@ -785,7 +785,7 @@ out:
         if (forceload) {
                 dev_printk(KERN_DEBUG, &dev->device,
                            "aerdrv forceload requested.\n");
-                dev->port->aer_firmware_first = 0;
+                pcie_aer_force_firmware_first(dev->port, 0);
                 return 0;
         }
         return -ENXIO;