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PCI/AER: Squash aerdrv_acpi.c into aerdrv.c
authorBjorn Helgaas <bhelgaas@google.com>
Fri, 8 Jun 2018 13:39:45 +0000 (08:39 -0500)
committerBjorn Helgaas <helgaas@kernel.org>
Mon, 11 Jun 2018 13:10:53 +0000 (08:10 -0500)
Squash aerdrv_acpi.c into aerdrv.c.  No functional change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
drivers/pci/pcie/aer/Makefile
drivers/pci/pcie/aer/aerdrv.c
drivers/pci/pcie/aer/aerdrv_acpi.c [deleted file]

index 662fb0d..80e77c6 100644 (file)
@@ -8,6 +8,5 @@ obj-$(CONFIG_PCIEAER) += aerdriver.o
 obj-$(CONFIG_PCIE_ECRC)        += ecrc.o
 
 aerdriver-objs := aerdrv.o
-aerdriver-$(CONFIG_ACPI) += aerdrv_acpi.o
 
 obj-$(CONFIG_PCIEAER_INJECT) += aer_inject.o
index 3dca266..f77f5df 100644 (file)
@@ -21,6 +21,7 @@
 #include <linux/delay.h>
 #include <linux/kfifo.h>
 #include <linux/slab.h>
+#include <acpi/apei.h>
 #include <ras/ras_event.h>
 
 #include "aerdrv.h"
@@ -38,6 +39,127 @@ bool pci_aer_available(void)
        return !pcie_aer_disable && pci_msi_enabled();
 }
 
+#ifdef CONFIG_ACPI_APEI
+static inline int hest_match_pci(struct acpi_hest_aer_common *p,
+                                struct pci_dev *pci)
+{
+       return   ACPI_HEST_SEGMENT(p->bus) == pci_domain_nr(pci->bus) &&
+                ACPI_HEST_BUS(p->bus)     == pci->bus->number &&
+                p->device                 == PCI_SLOT(pci->devfn) &&
+                p->function               == PCI_FUNC(pci->devfn);
+}
+
+static inline bool hest_match_type(struct acpi_hest_header *hest_hdr,
+                               struct pci_dev *dev)
+{
+       u16 hest_type = hest_hdr->type;
+       u8 pcie_type = pci_pcie_type(dev);
+
+       if ((hest_type == ACPI_HEST_TYPE_AER_ROOT_PORT &&
+               pcie_type == PCI_EXP_TYPE_ROOT_PORT) ||
+           (hest_type == ACPI_HEST_TYPE_AER_ENDPOINT &&
+               pcie_type == PCI_EXP_TYPE_ENDPOINT) ||
+           (hest_type == ACPI_HEST_TYPE_AER_BRIDGE &&
+               (dev->class >> 16) == PCI_BASE_CLASS_BRIDGE))
+               return true;
+       return false;
+}
+
+struct aer_hest_parse_info {
+       struct pci_dev *pci_dev;
+       int firmware_first;
+};
+
+static int hest_source_is_pcie_aer(struct acpi_hest_header *hest_hdr)
+{
+       if (hest_hdr->type == ACPI_HEST_TYPE_AER_ROOT_PORT ||
+           hest_hdr->type == ACPI_HEST_TYPE_AER_ENDPOINT ||
+           hest_hdr->type == ACPI_HEST_TYPE_AER_BRIDGE)
+               return 1;
+       return 0;
+}
+
+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;
+       int ff;
+
+       if (!hest_source_is_pcie_aer(hest_hdr))
+               return 0;
+
+       p = (struct acpi_hest_aer_common *)(hest_hdr + 1);
+       ff = !!(p->flags & ACPI_HEST_FIRMWARE_FIRST);
+
+       /*
+        * If no specific device is supplied, determine whether
+        * FIRMWARE_FIRST is set for *any* PCIe device.
+        */
+       if (!info->pci_dev) {
+               info->firmware_first |= ff;
+               return 0;
+       }
+
+       /* Otherwise, check the specific device */
+       if (p->flags & ACPI_HEST_GLOBAL) {
+               if (hest_match_type(hest_hdr, info->pci_dev))
+                       info->firmware_first = ff;
+       } else
+               if (hest_match_pci(p, info->pci_dev))
+                       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 (!pci_is_pcie(dev))
+               return 0;
+
+       if (!dev->__aer_firmware_first_valid)
+               aer_set_firmware_first(dev);
+       return dev->__aer_firmware_first;
+}
+
+static bool aer_firmware_first;
+
+/**
+ * aer_acpi_firmware_first - Check if APEI should control AER.
+ */
+bool aer_acpi_firmware_first(void)
+{
+       static bool parsed = false;
+       struct aer_hest_parse_info info = {
+               .pci_dev        = NULL, /* Check all PCIe devices */
+               .firmware_first = 0,
+       };
+
+       if (!parsed) {
+               apei_hest_parse(aer_hest_parse, &info);
+               aer_firmware_first = info.firmware_first;
+               parsed = true;
+       }
+       return aer_firmware_first;
+}
+#endif
+
 #define        PCI_EXP_AER_FLAGS       (PCI_EXP_DEVCTL_CERE | PCI_EXP_DEVCTL_NFERE | \
                                 PCI_EXP_DEVCTL_FERE | PCI_EXP_DEVCTL_URRE)
 
diff --git a/drivers/pci/pcie/aer/aerdrv_acpi.c b/drivers/pci/pcie/aer/aerdrv_acpi.c
deleted file mode 100644 (file)
index 08c87de..0000000
+++ /dev/null
@@ -1,141 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Access ACPI _OSC method
- *
- * Copyright (C) 2006 Intel Corp.
- *     Tom Long Nguyen (tom.l.nguyen@intel.com)
- *     Zhang Yanmin (yanmin.zhang@intel.com)
- */
-
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#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 <acpi/apei.h>
-#include "aerdrv.h"
-
-#ifdef CONFIG_ACPI_APEI
-static inline int hest_match_pci(struct acpi_hest_aer_common *p,
-                                struct pci_dev *pci)
-{
-       return   ACPI_HEST_SEGMENT(p->bus) == pci_domain_nr(pci->bus) &&
-                ACPI_HEST_BUS(p->bus)     == pci->bus->number &&
-                p->device                 == PCI_SLOT(pci->devfn) &&
-                p->function               == PCI_FUNC(pci->devfn);
-}
-
-static inline bool hest_match_type(struct acpi_hest_header *hest_hdr,
-                               struct pci_dev *dev)
-{
-       u16 hest_type = hest_hdr->type;
-       u8 pcie_type = pci_pcie_type(dev);
-
-       if ((hest_type == ACPI_HEST_TYPE_AER_ROOT_PORT &&
-               pcie_type == PCI_EXP_TYPE_ROOT_PORT) ||
-           (hest_type == ACPI_HEST_TYPE_AER_ENDPOINT &&
-               pcie_type == PCI_EXP_TYPE_ENDPOINT) ||
-           (hest_type == ACPI_HEST_TYPE_AER_BRIDGE &&
-               (dev->class >> 16) == PCI_BASE_CLASS_BRIDGE))
-               return true;
-       return false;
-}
-
-struct aer_hest_parse_info {
-       struct pci_dev *pci_dev;
-       int firmware_first;
-};
-
-static int hest_source_is_pcie_aer(struct acpi_hest_header *hest_hdr)
-{
-       if (hest_hdr->type == ACPI_HEST_TYPE_AER_ROOT_PORT ||
-           hest_hdr->type == ACPI_HEST_TYPE_AER_ENDPOINT ||
-           hest_hdr->type == ACPI_HEST_TYPE_AER_BRIDGE)
-               return 1;
-       return 0;
-}
-
-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;
-       int ff;
-
-       if (!hest_source_is_pcie_aer(hest_hdr))
-               return 0;
-
-       p = (struct acpi_hest_aer_common *)(hest_hdr + 1);
-       ff = !!(p->flags & ACPI_HEST_FIRMWARE_FIRST);
-
-       /*
-        * If no specific device is supplied, determine whether
-        * FIRMWARE_FIRST is set for *any* PCIe device.
-        */
-       if (!info->pci_dev) {
-               info->firmware_first |= ff;
-               return 0;
-       }
-
-       /* Otherwise, check the specific device */
-       if (p->flags & ACPI_HEST_GLOBAL) {
-               if (hest_match_type(hest_hdr, info->pci_dev))
-                       info->firmware_first = ff;
-       } else
-               if (hest_match_pci(p, info->pci_dev))
-                       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 (!pci_is_pcie(dev))
-               return 0;
-
-       if (!dev->__aer_firmware_first_valid)
-               aer_set_firmware_first(dev);
-       return dev->__aer_firmware_first;
-}
-
-static bool aer_firmware_first;
-
-/**
- * aer_acpi_firmware_first - Check if APEI should control AER.
- */
-bool aer_acpi_firmware_first(void)
-{
-       static bool parsed = false;
-       struct aer_hest_parse_info info = {
-               .pci_dev        = NULL, /* Check all PCIe devices */
-               .firmware_first = 0,
-       };
-
-       if (!parsed) {
-               apei_hest_parse(aer_hest_parse, &info);
-               aer_firmware_first = info.firmware_first;
-               parsed = true;
-       }
-       return aer_firmware_first;
-}
-#endif