--- /dev/null
+From dcfa9be83866e28fcb8b7e22b4eeb4ba63bd3174 Mon Sep 17 00:00:00 2001
+From: Simone Gotti <simone.gotti@gmail.com>
+Date: Wed, 18 Jun 2014 16:55:30 +0200
+Subject: ACPI / PCI: Fix sysfs acpi_index and label errors
+
+From: Simone Gotti <simone.gotti@gmail.com>
+
+commit dcfa9be83866e28fcb8b7e22b4eeb4ba63bd3174 upstream.
+
+Fix errors in handling "device label" _DSM return values.
+
+If _DSM returns a Unicode string, the ACPI type is ACPI_TYPE_BUFFER, not
+ACPI_TYPE_STRING. Fix dsm_label_utf16s_to_utf8s() to convert UTF-16 from
+acpi_object->buffer instead of acpi_object->string.
+
+Prior to v3.14, we accepted Unicode labels (ACPI_TYPE_BUFFER return
+values). But after 1d0fcef73283, we accepted only ASCII (ACPI_TYPE_STRING)
+(and we incorrectly tried to convert those ASCII labels from UTF-16 to
+UTF-8).
+
+Rejecting Unicode labels made us return -EPERM when reading sysfs
+"acpi_index" or "label" files, which in turn caused on-board network
+interfaces on a Dell PowerEdge E420 to be renamed (by udev net_id internal)
+from eno1/eno2 to enp2s0f0/enp2s0f1.
+
+Fix this by accepting either ACPI_TYPE_STRING (and treating it as ASCII) or
+ACPI_TYPE_BUFFER (and converting from UTF-16 to UTF-8).
+
+[bhelgaas: changelog]
+Fixes: 1d0fcef73283 ("ACPI / PCI: replace open-coded _DSM code with helper functions")
+Signed-off-by: Simone Gotti <simone.gotti@gmail.com>
+Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
+Reviewed-by: Jiang Liu <jiang.liu@linux.intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/pci/pci-label.c | 18 ++++++++++++------
+ 1 file changed, 12 insertions(+), 6 deletions(-)
+
+--- a/drivers/pci/pci-label.c
++++ b/drivers/pci/pci-label.c
+@@ -161,8 +161,8 @@ enum acpi_attr_enum {
+ static void dsm_label_utf16s_to_utf8s(union acpi_object *obj, char *buf)
+ {
+ int len;
+- len = utf16s_to_utf8s((const wchar_t *)obj->string.pointer,
+- obj->string.length,
++ len = utf16s_to_utf8s((const wchar_t *)obj->buffer.pointer,
++ obj->buffer.length,
+ UTF16_LITTLE_ENDIAN,
+ buf, PAGE_SIZE);
+ buf[len] = '\n';
+@@ -187,16 +187,22 @@ static int dsm_get_label(struct device *
+ tmp = obj->package.elements;
+ if (obj->type == ACPI_TYPE_PACKAGE && obj->package.count == 2 &&
+ tmp[0].type == ACPI_TYPE_INTEGER &&
+- tmp[1].type == ACPI_TYPE_STRING) {
++ (tmp[1].type == ACPI_TYPE_STRING ||
++ tmp[1].type == ACPI_TYPE_BUFFER)) {
+ /*
+ * The second string element is optional even when
+ * this _DSM is implemented; when not implemented,
+ * this entry must return a null string.
+ */
+- if (attr == ACPI_ATTR_INDEX_SHOW)
++ if (attr == ACPI_ATTR_INDEX_SHOW) {
+ scnprintf(buf, PAGE_SIZE, "%llu\n", tmp->integer.value);
+- else if (attr == ACPI_ATTR_LABEL_SHOW)
+- dsm_label_utf16s_to_utf8s(tmp + 1, buf);
++ } else if (attr == ACPI_ATTR_LABEL_SHOW) {
++ if (tmp[1].type == ACPI_TYPE_STRING)
++ scnprintf(buf, PAGE_SIZE, "%s\n",
++ tmp[1].string.pointer);
++ else if (tmp[1].type == ACPI_TYPE_BUFFER)
++ dsm_label_utf16s_to_utf8s(tmp + 1, buf);
++ }
+ len = strlen(buf) > 0 ? strlen(buf) : -1;
+ }
+
--- /dev/null
+From 37dbeab788a8f23fd946c0be083e5484d6f929a1 Mon Sep 17 00:00:00 2001
+From: Alex Deucher <alexander.deucher@amd.com>
+Date: Thu, 21 Aug 2014 10:55:07 -0400
+Subject: drm/radeon: add additional SI pci ids
+
+From: Alex Deucher <alexander.deucher@amd.com>
+
+commit 37dbeab788a8f23fd946c0be083e5484d6f929a1 upstream.
+
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ include/drm/drm_pciids.h | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/include/drm/drm_pciids.h
++++ b/include/drm/drm_pciids.h
+@@ -165,8 +165,11 @@
+ {0x1002, 0x6601, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_OLAND|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x6602, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_OLAND|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x6603, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_OLAND|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
++ {0x1002, 0x6604, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_OLAND|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
++ {0x1002, 0x6605, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_OLAND|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x6606, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_OLAND|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x6607, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_OLAND|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
++ {0x1002, 0x6608, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_OLAND|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x6610, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_OLAND|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x6611, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_OLAND|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x6613, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_OLAND|RADEON_NEW_MEMMAP}, \
+@@ -300,6 +303,7 @@
+ {0x1002, 0x6829, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x682A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x682B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
++ {0x1002, 0x682C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x682D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x682F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x6830, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
--- /dev/null
+From 5fc540edc8ea1297c76685f74bc82a2107fe6731 Mon Sep 17 00:00:00 2001
+From: Alex Deucher <alexander.deucher@amd.com>
+Date: Thu, 21 Aug 2014 10:48:11 -0400
+Subject: drm/radeon: add new bonaire pci ids
+
+From: Alex Deucher <alexander.deucher@amd.com>
+
+commit 5fc540edc8ea1297c76685f74bc82a2107fe6731 upstream.
+
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ include/drm/drm_pciids.h | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/include/drm/drm_pciids.h
++++ b/include/drm/drm_pciids.h
+@@ -176,6 +176,8 @@
+ {0x1002, 0x6631, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_OLAND|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x6640, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x6641, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
++ {0x1002, 0x6646, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
++ {0x1002, 0x6647, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x6649, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x6650, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x6651, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_NEW_MEMMAP}, \
--- /dev/null
+From 6dc14baf4ced769017c7a7045019c7a19f373865 Mon Sep 17 00:00:00 2001
+From: Alex Deucher <alexander.deucher@amd.com>
+Date: Thu, 21 Aug 2014 10:41:42 -0400
+Subject: drm/radeon: add new KV pci id
+
+From: Alex Deucher <alexander.deucher@amd.com>
+
+commit 6dc14baf4ced769017c7a7045019c7a19f373865 upstream.
+
+bug:
+https://bugs.freedesktop.org/show_bug.cgi?id=82912
+
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/gpu/drm/radeon/cik.c | 1 +
+ include/drm/drm_pciids.h | 1 +
+ 2 files changed, 2 insertions(+)
+
+--- a/drivers/gpu/drm/radeon/cik.c
++++ b/drivers/gpu/drm/radeon/cik.c
+@@ -3320,6 +3320,7 @@ static void cik_gpu_init(struct radeon_d
+ (rdev->pdev->device == 0x130B) ||
+ (rdev->pdev->device == 0x130E) ||
+ (rdev->pdev->device == 0x1315) ||
++ (rdev->pdev->device == 0x1318) ||
+ (rdev->pdev->device == 0x131B)) {
+ rdev->config.cik.max_cu_per_sh = 4;
+ rdev->config.cik.max_backends_per_se = 1;
+--- a/include/drm/drm_pciids.h
++++ b/include/drm/drm_pciids.h
+@@ -17,6 +17,7 @@
+ {0x1002, 0x1315, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+ {0x1002, 0x1316, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+ {0x1002, 0x1317, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
++ {0x1002, 0x1318, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+ {0x1002, 0x131B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+ {0x1002, 0x131C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+ {0x1002, 0x131D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
--- /dev/null
+From 0758f4f732b08b6ef07f2e5f735655cf69fea477 Mon Sep 17 00:00:00 2001
+From: "Stephen M. Cameron" <scameron@beardog.cce.hp.com>
+Date: Thu, 3 Jul 2014 10:18:03 -0500
+Subject: hpsa: fix bad -ENOMEM return value in hpsa_big_passthru_ioctl
+
+From: "Stephen M. Cameron" <scameron@beardog.cce.hp.com>
+
+commit 0758f4f732b08b6ef07f2e5f735655cf69fea477 upstream.
+
+When copy_from_user fails, return -EFAULT, not -ENOMEM
+
+Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
+Reported-by: Robert Elliott <elliott@hp.com>
+Reviewed-by: Joe Handzik <joseph.t.handzik@hp.com>
+Reviewed-by: Scott Teel <scott.teel@hp.com>
+Reviewed by: Mike MIller <michael.miller@canonical.com>
+Signed-off-by: Christoph Hellwig <hch@lst.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/scsi/hpsa.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/scsi/hpsa.c
++++ b/drivers/scsi/hpsa.c
+@@ -5092,7 +5092,7 @@ static int hpsa_big_passthru_ioctl(struc
+ }
+ if (ioc->Request.Type.Direction & XFER_WRITE) {
+ if (copy_from_user(buff[sg_used], data_ptr, sz)) {
+- status = -ENOMEM;
++ status = -EFAULT;
+ goto cleanup1;
+ }
+ } else
--- /dev/null
+From 0b9e7b741f2bf8103b15bb14d5b4a6f5ee91c59a Mon Sep 17 00:00:00 2001
+From: Arnd Bergmann <arnd@arndb.de>
+Date: Thu, 26 Jun 2014 15:44:52 +0200
+Subject: hpsa: fix non-x86 builds
+
+From: Arnd Bergmann <arnd@arndb.de>
+
+commit 0b9e7b741f2bf8103b15bb14d5b4a6f5ee91c59a upstream.
+
+commit 28e134464734 "[SCSI] hpsa: enable unit attention reporting"
+turns on unit attention notifications, but got the change wrong for
+all architectures other than x86, which now store an uninitialized
+value into the device register.
+
+Gcc helpfully warns about this:
+
+../drivers/scsi/hpsa.c: In function 'hpsa_set_driver_support_bits':
+../drivers/scsi/hpsa.c:6373:17: warning: 'driver_support' is used uninitialized in this function [-Wuninitialized]
+ driver_support |= ENABLE_UNIT_ATTN;
+ ^
+
+This moves the #ifdef so only the prefetch-enable is conditional
+on x86, not also reading the initial register contents.
+
+Signed-off-by: Arnd Bergmann <arnd@arndb.de>
+Fixes: 28e134464734 "[SCSI] hpsa: enable unit attention reporting"
+Acked-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
+Signed-off-by: Christoph Hellwig <hch@lst.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/scsi/hpsa.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/scsi/hpsa.c
++++ b/drivers/scsi/hpsa.c
+@@ -6365,9 +6365,9 @@ static inline void hpsa_set_driver_suppo
+ {
+ u32 driver_support;
+
+-#ifdef CONFIG_X86
+- /* Need to enable prefetch in the SCSI core for 6400 in x86 */
+ driver_support = readl(&(h->cfgtable->driver_support));
++ /* Need to enable prefetch in the SCSI core for 6400 in x86 */
++#ifdef CONFIG_X86
+ driver_support |= ENABLE_SCSI_PREFETCH;
+ #endif
+ driver_support |= ENABLE_UNIT_ATTN;
--- /dev/null
+From 1f6ae47ecff7f23da73417e068018b311f3b5583 Mon Sep 17 00:00:00 2001
+From: Vidya Sagar <sagar.tv@gmail.com>
+Date: Wed, 16 Jul 2014 15:33:42 +0530
+Subject: PCI: Configure ASPM when enabling device
+
+From: Vidya Sagar <sagar.tv@gmail.com>
+
+commit 1f6ae47ecff7f23da73417e068018b311f3b5583 upstream.
+
+We can't do ASPM configuration at enumeration-time because enabling it
+makes some defective hardware unresponsive, even if ASPM is disabled later
+(see 41cd766b0659 ("PCI: Don't enable aspm before drivers have had a chance
+to veto it"). Therefore, we have to do it after a driver claims the
+device.
+
+We previously configured ASPM in pci_set_power_state(), but that's not a
+very good place because it's not really related to setting the PCI device
+power state, and doing it there means:
+
+ - We incorrectly skipped ASPM config when setting a device that's
+ already in D0 to D0.
+
+ - We unnecessarily configured ASPM when setting a device to a low-power
+ state (the ASPM feature only applies when the device is in D0).
+
+ - We unnecessarily configured ASPM when called from a .resume() method
+ (ASPM configuration needs to be restored during resume, but
+ pci_restore_pcie_state() should already do this).
+
+Move ASPM configuration from pci_set_power_state() to
+do_pci_enable_device() so we do it when a driver enables a device.
+
+[bhelgaas: changelog]
+Link: https://bugzilla.kernel.org/show_bug.cgi?id=79621
+Fixes: db288c9c5f9d ("PCI / PM: restore the original behavior of pci_set_power_state()")
+Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
+Signed-off-by: Vidya Sagar <sagar.tv@gmail.com>
+Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/pci/pci.c | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+--- a/drivers/pci/pci.c
++++ b/drivers/pci/pci.c
+@@ -839,12 +839,6 @@ int pci_set_power_state(struct pci_dev *
+
+ if (!__pci_complete_power_transition(dev, state))
+ error = 0;
+- /*
+- * When aspm_policy is "powersave" this call ensures
+- * that ASPM is configured.
+- */
+- if (!error && dev->bus->self)
+- pcie_aspm_powersave_config_link(dev->bus->self);
+
+ return error;
+ }
+@@ -1195,12 +1189,18 @@ int __weak pcibios_enable_device(struct
+ static int do_pci_enable_device(struct pci_dev *dev, int bars)
+ {
+ int err;
++ struct pci_dev *bridge;
+ u16 cmd;
+ u8 pin;
+
+ err = pci_set_power_state(dev, PCI_D0);
+ if (err < 0 && err != -EIO)
+ return err;
++
++ bridge = pci_upstream_bridge(dev);
++ if (bridge)
++ pcie_aspm_powersave_config_link(bridge);
++
+ err = pcibios_enable_device(dev, bars);
+ if (err < 0)
+ return err;
--- /dev/null
+From c33377082dd9ede1e998f7ce416077e4b1c2276c Mon Sep 17 00:00:00 2001
+From: Guo Chao <yan@linux.vnet.ibm.com>
+Date: Thu, 3 Jul 2014 18:30:29 -0600
+Subject: PCI: Keep original resource if we fail to expand it
+
+From: Guo Chao <yan@linux.vnet.ibm.com>
+
+commit c33377082dd9ede1e998f7ce416077e4b1c2276c upstream.
+
+If we have space assigned to a resource, we try to expand the resource
+(e.g., to accommodate SR-IOV resources), and the expansion attempt fails,
+we should keep the original assignment.
+
+After bd064f0a231a ("PCI: Mark resources as IORESOURCE_UNSET if we can't
+assign them"), we left the resource marked IORESOURCE_UNSET when the
+expansion failed, even if it had originally been set. That caused errors
+like this:
+
+ pci 0003:00:00.0: can't enable device: BAR 15 [mem size 0x0c000000 64bit pref] not assigned
+ pci 0003:00:00.0: Error enabling bridge (-22), continuing
+
+Fix this by restoring the original flags when reassignment fails.
+
+[bhelgaas: reworked to simplify, changelog]
+Fixes: bd064f0a231a ("PCI: Mark resources as IORESOURCE_UNSET if we can't assign them")
+Signed-off-by: Guo Chao <yan@linux.vnet.ibm.com>
+Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/pci/setup-res.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+--- a/drivers/pci/setup-res.c
++++ b/drivers/pci/setup-res.c
+@@ -320,9 +320,11 @@ int pci_reassign_resource(struct pci_dev
+ resource_size_t min_align)
+ {
+ struct resource *res = dev->resource + resno;
++ unsigned long flags;
+ resource_size_t new_size;
+ int ret;
+
++ flags = res->flags;
+ res->flags |= IORESOURCE_UNSET;
+ if (!res->parent) {
+ dev_info(&dev->dev, "BAR %d: can't reassign an unassigned resource %pR\n",
+@@ -339,7 +341,12 @@ int pci_reassign_resource(struct pci_dev
+ dev_info(&dev->dev, "BAR %d: reassigned %pR\n", resno, res);
+ if (resno < PCI_BRIDGE_RESOURCES)
+ pci_update_resource(dev, resno);
++ } else {
++ res->flags = flags;
++ dev_info(&dev->dev, "BAR %d: %pR (failed to expand by %#llx)\n",
++ resno, res, (unsigned long long) addsize);
+ }
++
+ return ret;
+ }
+
--- /dev/null
+From 0d25d35c987d7b0b63368d9c1ae35a917e1a7bab Mon Sep 17 00:00:00 2001
+From: Myron Stowe <myron.stowe@redhat.com>
+Date: Tue, 17 Jun 2014 13:27:34 -0600
+Subject: PCI: pciehp: Clear Data Link Layer State Changed during init
+
+From: Myron Stowe <myron.stowe@redhat.com>
+
+commit 0d25d35c987d7b0b63368d9c1ae35a917e1a7bab upstream.
+
+During PCIe hot-plug initialization - pciehp_probe() - data structures
+related to slot capabilities are set up. As part of this set up, ISRs are
+put in place to handle slot events and all event bits are cleared out.
+
+This patch adds the Data Link Layer State Changed (PCI_EXP_SLTSTA_DLLSC)
+Slot Status bit to the event bits that are cleared out during
+initialization.
+
+If the BIOS doesn't clear DLLSC before handoff to the OS, pciehp notices
+that it's set and interprets it as a new Link Up event, which results in
+spurious messages:
+
+ pciehp 0000:82:04.0:pcie24: slot(4): Link Up event
+ pciehp 0000:82:04.0:pcie24: Device 0000:83:00.0 already exists at 0000:83:00, cannot hot-add
+ pciehp 0000:82:04.0:pcie24: Cannot add device at 0000:83:00
+
+Prior to e48f1b67f668 ("PCI: pciehp: Use link change notifications for
+hot-plug and removal"), pciehp ignored DLLSC.
+
+Reference:
+ PCI-SIG. PCI Express Base Specification Revision 4.0 Version 0.3
+ (PCI-SIG, 2014): 7.8.11. Slot Status Register (Offset 1Ah).
+
+[bhelgaas: add e48f1b67f668 ref and stable tag]
+Fixes: e48f1b67f668 ("PCI: pciehp: Use link change notifications for hot-plug and removal")
+Link: https://bugzilla.kernel.org/show_bug.cgi?id=79611
+Signed-off-by: Myron Stowe <myron.stowe@redhat.com>
+Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/pci/hotplug/pciehp_hpc.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/pci/hotplug/pciehp_hpc.c
++++ b/drivers/pci/hotplug/pciehp_hpc.c
+@@ -794,7 +794,7 @@ struct controller *pcie_init(struct pcie
+ pcie_capability_write_word(pdev, PCI_EXP_SLTSTA,
+ PCI_EXP_SLTSTA_ABP | PCI_EXP_SLTSTA_PFD |
+ PCI_EXP_SLTSTA_MRLSC | PCI_EXP_SLTSTA_PDC |
+- PCI_EXP_SLTSTA_CC);
++ PCI_EXP_SLTSTA_CC | PCI_EXP_SLTSTA_DLLSC);
+
+ /* Disable software notification */
+ pcie_disable_notification(ctrl);
--- /dev/null
+From 9e5c6e5a3be0b2e17ff61b9b74adef4a2c9e6934 Mon Sep 17 00:00:00 2001
+From: Mike Qiu <qiudayu@linux.vnet.ibm.com>
+Date: Tue, 15 Jul 2014 01:42:22 -0400
+Subject: powerpc/eeh: Wrong place to call pci_get_slot()
+
+From: Mike Qiu <qiudayu@linux.vnet.ibm.com>
+
+commit 9e5c6e5a3be0b2e17ff61b9b74adef4a2c9e6934 upstream.
+
+pci_get_slot() is called with hold of PCI bus semaphore and it's not
+safe to be called in interrupt context. However, we possibly checks
+EEH error and calls the function in interrupt context. To avoid using
+pci_get_slot(), we turn into device tree for fetching location code.
+Otherwise, we might run into WARN_ON() as following messages indicate:
+
+ WARNING: at drivers/pci/search.c:223
+ CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.16.0-rc3+ #72
+ task: c000000001367af0 ti: c000000001444000 task.ti: c000000001444000
+ NIP: c000000000497b70 LR: c000000000037530 CTR: 000000003003d114
+ REGS: c000000001446fa0 TRAP: 0700 Not tainted (3.16.0-rc3+)
+ MSR: 9000000000029032 <SF,HV,EE,ME,IR,DR,RI> CR: 48002422 XER: 20000000
+ CFAR: c00000000003752c SOFTE: 0
+ :
+ NIP [c000000000497b70] .pci_get_slot+0x40/0x110
+ LR [c000000000037530] .eeh_pe_loc_get+0x150/0x190
+ Call Trace:
+ .of_get_property+0x30/0x60 (unreliable)
+ .eeh_pe_loc_get+0x150/0x190
+ .eeh_dev_check_failure+0x1b4/0x550
+ .eeh_check_failure+0x90/0xf0
+ .lpfc_sli_check_eratt+0x504/0x7c0 [lpfc]
+ .lpfc_poll_eratt+0x64/0x100 [lpfc]
+ .call_timer_fn+0x64/0x190
+ .run_timer_softirq+0x2cc/0x3e0
+
+Signed-off-by: Mike Qiu <qiudayu@linux.vnet.ibm.com>
+Acked-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
+Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/powerpc/kernel/eeh_pe.c | 46 ++++++++++++-------------------------------
+ 1 file changed, 13 insertions(+), 33 deletions(-)
+
+--- a/arch/powerpc/kernel/eeh_pe.c
++++ b/arch/powerpc/kernel/eeh_pe.c
+@@ -802,53 +802,33 @@ void eeh_pe_restore_bars(struct eeh_pe *
+ */
+ const char *eeh_pe_loc_get(struct eeh_pe *pe)
+ {
+- struct pci_controller *hose;
+ struct pci_bus *bus = eeh_pe_bus_get(pe);
+- struct pci_dev *pdev;
+- struct device_node *dn;
+- const char *loc;
++ struct device_node *dn = pci_bus_to_OF_node(bus);
++ const char *loc = NULL;
+
+- if (!bus)
+- return "N/A";
++ if (!dn)
++ goto out;
+
+ /* PHB PE or root PE ? */
+ if (pci_is_root_bus(bus)) {
+- hose = pci_bus_to_host(bus);
+- loc = of_get_property(hose->dn,
+- "ibm,loc-code", NULL);
+- if (loc)
+- return loc;
+- loc = of_get_property(hose->dn,
+- "ibm,io-base-loc-code", NULL);
++ loc = of_get_property(dn, "ibm,loc-code", NULL);
++ if (!loc)
++ loc = of_get_property(dn, "ibm,io-base-loc-code", NULL);
+ if (loc)
+- return loc;
++ goto out;
+
+- pdev = pci_get_slot(bus, 0x0);
+- } else {
+- pdev = bus->self;
+- }
+-
+- if (!pdev) {
+- loc = "N/A";
+- goto out;
+- }
+-
+- dn = pci_device_to_OF_node(pdev);
+- if (!dn) {
+- loc = "N/A";
+- goto out;
++ /* Check the root port */
++ dn = dn->child;
++ if (!dn)
++ goto out;
+ }
+
+ loc = of_get_property(dn, "ibm,loc-code", NULL);
+ if (!loc)
+ loc = of_get_property(dn, "ibm,slot-location-code", NULL);
+- if (!loc)
+- loc = "N/A";
+
+ out:
+- if (pci_is_root_bus(bus) && pdev)
+- pci_dev_put(pdev);
+- return loc;
++ return loc ? loc : "N/A";
+ }
+
+ /**
--- /dev/null
+From 7340056567e32b2c9d3554eb146e1977c93da116 Mon Sep 17 00:00:00 2001
+From: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
+Date: Tue, 29 Jul 2014 13:48:13 -0400
+Subject: powerpc/pci: Reorder pci bus/bridge unregistration during PHB removal
+
+From: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
+
+commit 7340056567e32b2c9d3554eb146e1977c93da116 upstream.
+
+Commit bcdde7e made __sysfs_remove_dir() recursive and introduced a BUG_ON
+during PHB removal while attempting to delete the power managment attribute
+group of the bus. This is a result of tearing the bridge and bus devices down
+out of order in remove_phb_dynamic. Since, the the bus resides below the bridge
+in the sysfs device tree it should be torn down first.
+
+This patch simply moves the device_unregister call for the PHB bridge device
+after the device_unregister call for the PHB bus.
+
+Fixes: bcdde7e221a8 ("sysfs: make __sysfs_remove_dir() recursive")
+Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
+Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/powerpc/platforms/pseries/pci_dlpar.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/powerpc/platforms/pseries/pci_dlpar.c
++++ b/arch/powerpc/platforms/pseries/pci_dlpar.c
+@@ -118,10 +118,10 @@ int remove_phb_dynamic(struct pci_contro
+ }
+ }
+
+- /* Unregister the bridge device from sysfs and remove the PCI bus */
+- device_unregister(b->bridge);
++ /* Remove the PCI bus and unregister the bridge device from sysfs */
+ phb->bus = NULL;
+ pci_remove_bus(b);
++ device_unregister(b->bridge);
+
+ /* Now release the IO resource */
+ if (res->flags & IORESOURCE_IO)
--- /dev/null
+From a32305bf90a2ae0e6a9a93370c7616565f75e15a Mon Sep 17 00:00:00 2001
+From: Brian W Hart <hartb@linux.vnet.ibm.com>
+Date: Thu, 31 Jul 2014 14:24:37 -0500
+Subject: powerpc/powernv: Update dev->dma_mask in pci_set_dma_mask() path
+
+From: Brian W Hart <hartb@linux.vnet.ibm.com>
+
+commit a32305bf90a2ae0e6a9a93370c7616565f75e15a upstream.
+
+powerpc defines various machine-specific routines for handling
+pci_set_dma_mask(). The routines for machine "PowerNV" may neglect
+to set dev->dma_mask. This could confuse anyone (e.g. drivers) that
+consult dev->dma_mask to find the current mask. Set the dma_mask in
+the PowerNV leaf routine.
+
+Signed-off-by: Brian W. Hart <hartb@linux.vnet.ibm.com>
+Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/powerpc/platforms/powernv/pci-ioda.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/arch/powerpc/platforms/powernv/pci-ioda.c
++++ b/arch/powerpc/platforms/powernv/pci-ioda.c
+@@ -491,6 +491,7 @@ static int pnv_pci_ioda_dma_set_mask(str
+ set_dma_ops(&pdev->dev, &dma_iommu_ops);
+ set_iommu_table_base(&pdev->dev, &pe->tce32_table);
+ }
++ *pdev->dev.dma_mask = dma_mask;
+ return 0;
+ }
+
revert-kvm-x86-increase-the-number-of-fixed-mtrr-regs-to-10.patch
kvm-iommu-fix-the-third-parameter-of-kvm_iommu_put_pages-cve-2014-3601.patch
ext4-fix-bug_on-in-mb_free_blocks.patch
+drm-radeon-add-new-kv-pci-id.patch
+drm-radeon-add-new-bonaire-pci-ids.patch
+drm-radeon-add-additional-si-pci-ids.patch
+pci-configure-aspm-when-enabling-device.patch
+pci-keep-original-resource-if-we-fail-to-expand-it.patch
+pci-pciehp-clear-data-link-layer-state-changed-during-init.patch
+acpi-pci-fix-sysfs-acpi_index-and-label-errors.patch
+x86-ia64-move-efi_fb-vga_default_device-initialization-to-pci_vga_fixup.patch
+x86-don-t-exclude-low-bios-area-when-allocating-address-space-for-non-pci-cards.patch
+powerpc-eeh-wrong-place-to-call-pci_get_slot.patch
+powerpc-pci-reorder-pci-bus-bridge-unregistration-during-phb-removal.patch
+powerpc-powernv-update-dev-dma_mask-in-pci_set_dma_mask-path.patch
+x86_64-vsyscall-fix-warn_bad_vsyscall-log-output.patch
+hpsa-fix-non-x86-builds.patch
+x86-mce-add-raw_lock-conversion-again.patch
+xen-events-fifo-ensure-all-bitops-are-properly-aligned-even-on-x86.patch
+x86-efi-enforce-config_relocatable-for-efi-boot-stub.patch
+x86-xen-use-vmap-to-map-grant-table-pages-in-pvh-guests.patch
+x86-xen-resume-timer-irqs-early.patch
+x86-mm-fix-pte_special-versus-pte_numa.patch
+hpsa-fix-bad-enomem-return-value-in-hpsa_big_passthru_ioctl.patch
--- /dev/null
+From cbace46a9710a480cae51e4611697df5de41713e Mon Sep 17 00:00:00 2001
+From: Christoph Schulz <develop@kristov.de>
+Date: Wed, 16 Jul 2014 10:00:57 +0200
+Subject: x86: don't exclude low BIOS area when allocating address space for non-PCI cards
+
+From: Christoph Schulz <develop@kristov.de>
+
+commit cbace46a9710a480cae51e4611697df5de41713e upstream.
+
+Commit 30919b0bf356 ("x86: avoid low BIOS area when allocating address
+space") moved the test for resource allocations that fall within the first
+1MB of address space from the PCI-specific path to a generic path, such
+that all resource allocations will avoid this area. However, this breaks
+ISA cards which need to allocate a memory region within the first 1MB. An
+example is the i82365 PCMCIA controller and derivatives like the Ricoh
+RF5C296/396 which map part of the PCMCIA socket memory address space into
+the first 1MB of system memory address space. They do not work anymore as
+no usable memory region exists due to this change:
+
+ Intel ISA PCIC probe: Ricoh RF5C296/396 ISA-to-PCMCIA at port 0x3e0 ofs 0x00, 2 sockets
+ host opts [0]: none
+ host opts [1]: none
+ ISA irqs (scanned) = 3,4,5,9,10 status change on irq 10
+ pcmcia_socket pcmcia_socket1: pccard: PCMCIA card inserted into slot 1
+ pcmcia_socket pcmcia_socket0: cs: IO port probe 0xc00-0xcff: excluding 0xcf8-0xcff
+ pcmcia_socket pcmcia_socket0: cs: IO port probe 0xa00-0xaff: clean.
+ pcmcia_socket pcmcia_socket0: cs: IO port probe 0x100-0x3ff: excluding 0x170-0x177 0x1f0-0x1f7 0x2f8-0x2ff 0x370-0x37f 0x3c0-0x3e7 0x3f0-0x3ff
+ pcmcia_socket pcmcia_socket0: cs: memory probe 0x0a0000-0x0affff: excluding 0xa0000-0xaffff
+ pcmcia_socket pcmcia_socket0: cs: memory probe 0x0b0000-0x0bffff: excluding 0xb0000-0xbffff
+ pcmcia_socket pcmcia_socket0: cs: memory probe 0x0c0000-0x0cffff: excluding 0xc0000-0xcbfff
+ pcmcia_socket pcmcia_socket0: cs: memory probe 0x0d0000-0x0dffff: clean.
+ pcmcia_socket pcmcia_socket0: cs: memory probe 0x0e0000-0x0effff: clean.
+ pcmcia_socket pcmcia_socket0: cs: memory probe 0x60000000-0x60ffffff: clean.
+ pcmcia_socket pcmcia_socket0: cs: memory probe 0xa0000000-0xa0ffffff: clean.
+ pcmcia_socket pcmcia_socket1: cs: IO port probe 0xc00-0xcff: excluding 0xcf8-0xcff
+ pcmcia_socket pcmcia_socket1: cs: IO port probe 0xa00-0xaff: clean.
+ pcmcia_socket pcmcia_socket1: cs: IO port probe 0x100-0x3ff: excluding 0x170-0x177 0x1f0-0x1f7 0x2f8-0x2ff 0x370-0x37f 0x3c0-0x3e7 0x3f0-0x3ff
+ pcmcia_socket pcmcia_socket1: cs: memory probe 0x0a0000-0x0affff: excluding 0xa0000-0xaffff
+ pcmcia_socket pcmcia_socket1: cs: memory probe 0x0b0000-0x0bffff: excluding 0xb0000-0xbffff
+ pcmcia_socket pcmcia_socket1: cs: memory probe 0x0c0000-0x0cffff: excluding 0xc0000-0xcbfff
+ pcmcia_socket pcmcia_socket1: cs: memory probe 0x0d0000-0x0dffff: clean.
+ pcmcia_socket pcmcia_socket1: cs: memory probe 0x0e0000-0x0effff: clean.
+ pcmcia_socket pcmcia_socket1: cs: memory probe 0x60000000-0x60ffffff: clean.
+ pcmcia_socket pcmcia_socket1: cs: memory probe 0xa0000000-0xa0ffffff: clean.
+ pcmcia_socket pcmcia_socket1: cs: memory probe 0x0cc000-0x0effff: excluding 0xe0000-0xeffff
+ pcmcia_socket pcmcia_socket1: cs: unable to map card memory!
+
+If filtering out the first 1MB is reverted, everything works as expected.
+
+Tested-by: Robert Resch <fli4l@robert.reschpara.de>
+Signed-off-by: Christoph Schulz <develop@kristov.de>
+Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/x86/kernel/resource.c | 8 +++++---
+ arch/x86/pci/i386.c | 4 ++++
+ 2 files changed, 9 insertions(+), 3 deletions(-)
+
+--- a/arch/x86/kernel/resource.c
++++ b/arch/x86/kernel/resource.c
+@@ -37,10 +37,12 @@ static void remove_e820_regions(struct r
+
+ void arch_remove_reservations(struct resource *avail)
+ {
+- /* Trim out BIOS areas (low 1MB and high 2MB) and E820 regions */
++ /*
++ * Trim out BIOS area (high 2MB) and E820 regions. We do not remove
++ * the low 1MB unconditionally, as this area is needed for some ISA
++ * cards requiring a memory range, e.g. the i82365 PCMCIA controller.
++ */
+ if (avail->flags & IORESOURCE_MEM) {
+- if (avail->start < BIOS_END)
+- avail->start = BIOS_END;
+ resource_clip(avail, BIOS_ROM_BASE, BIOS_ROM_END);
+
+ remove_e820_regions(avail);
+--- a/arch/x86/pci/i386.c
++++ b/arch/x86/pci/i386.c
+@@ -162,6 +162,10 @@ pcibios_align_resource(void *data, const
+ return start;
+ if (start & 0x300)
+ start = (start + 0x3ff) & ~0x3ff;
++ } else if (res->flags & IORESOURCE_MEM) {
++ /* The low 1MB range is reserved for ISA cards */
++ if (start < BIOS_END)
++ start = BIOS_END;
+ }
+ return start;
+ }
--- /dev/null
+From 7b2a583afb4ab894f78bc0f8bd136e96b6499a7e Mon Sep 17 00:00:00 2001
+From: Matt Fleming <matt.fleming@intel.com>
+Date: Fri, 11 Jul 2014 08:45:25 +0100
+Subject: x86/efi: Enforce CONFIG_RELOCATABLE for EFI boot stub
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: Matt Fleming <matt.fleming@intel.com>
+
+commit 7b2a583afb4ab894f78bc0f8bd136e96b6499a7e upstream.
+
+Without CONFIG_RELOCATABLE the early boot code will decompress the
+kernel to LOAD_PHYSICAL_ADDR. While this may have been fine in the BIOS
+days, that isn't going to fly with UEFI since parts of the firmware
+code/data may be located at LOAD_PHYSICAL_ADDR.
+
+Straying outside of the bounds of the regions we've explicitly requested
+from the firmware will cause all sorts of trouble. Bruno reports that
+his machine resets while trying to decompress the kernel image.
+
+We already go to great pains to ensure the kernel is loaded into a
+suitably aligned buffer, it's just that the address isn't necessarily
+LOAD_PHYSICAL_ADDR, because we can't guarantee that address isn't in-use
+by the firmware.
+
+Explicitly enforce CONFIG_RELOCATABLE for the EFI boot stub, so that we
+can load the kernel at any address with the correct alignment.
+
+Reported-by: Bruno Prémont <bonbons@linux-vserver.org>
+Tested-by: Bruno Prémont <bonbons@linux-vserver.org>
+Cc: H. Peter Anvin <hpa@zytor.com>
+Signed-off-by: Matt Fleming <matt.fleming@intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/x86/Kconfig | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/arch/x86/Kconfig
++++ b/arch/x86/Kconfig
+@@ -1537,6 +1537,7 @@ config EFI
+ config EFI_STUB
+ bool "EFI stub support"
+ depends on EFI
++ select RELOCATABLE
+ ---help---
+ This kernel feature allows a bzImage to be loaded directly
+ by EFI firmware without the use of a bootloader.
--- /dev/null
+From 20cde694027e7477cc532833e38ab9fcaa83fb64 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Bruno=20Pr=C3=A9mont?= <bonbons@linux-vserver.org>
+Date: Wed, 25 Jun 2014 00:55:01 +0200
+Subject: x86, ia64: Move EFI_FB vga_default_device() initialization to pci_vga_fixup()
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: =?UTF-8?q?Bruno=20Pr=C3=A9mont?= <bonbons@linux-vserver.org>
+
+commit 20cde694027e7477cc532833e38ab9fcaa83fb64 upstream.
+
+Commit b4aa0163056b ("efifb: Implement vga_default_device() (v2)") added
+efifb vga_default_device() so EFI systems that do not load shadow VBIOS or
+setup VGA get proper value for boot_vga PCI sysfs attribute on the
+corresponding PCI device.
+
+Xorg doesn't detect devices when boot_vga=0, e.g., on some EFI systems such
+as MacBookAir2,1. Xorg detects the GPU and finds the DRI device but then
+bails out with "no devices detected".
+
+Note: When vga_default_device() is set boot_vga PCI sysfs attribute
+reflects its state. When unset this attribute is 1 whenever
+IORESOURCE_ROM_SHADOW flag is set.
+
+With introduction of sysfb/simplefb/simpledrm efifb is getting obsolete
+while having native drivers for the GPU also makes selecting sysfb/efifb
+optional.
+
+Remove the efifb implementation of vga_default_device() and initialize
+vgaarb's vga_default_device() with the PCI GPU that matches boot
+screen_info in pci_fixup_video().
+
+[bhelgaas: remove unused "dev" in efifb_setup()]
+Fixes: b4aa0163056b ("efifb: Implement vga_default_device() (v2)")
+Tested-by: Anibal Francisco Martinez Cortina <linuxkid.zeuz@gmail.com>
+Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
+Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
+Acked-by: Matthew Garrett <matthew.garrett@nebula.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/ia64/pci/fixup.c | 22 ++++++++++++++++++++++
+ arch/x86/include/asm/vga.h | 6 ------
+ arch/x86/pci/fixup.c | 21 +++++++++++++++++++++
+ drivers/video/fbdev/efifb.c | 39 ---------------------------------------
+ 4 files changed, 43 insertions(+), 45 deletions(-)
+
+--- a/arch/ia64/pci/fixup.c
++++ b/arch/ia64/pci/fixup.c
+@@ -6,6 +6,7 @@
+ #include <linux/pci.h>
+ #include <linux/init.h>
+ #include <linux/vgaarb.h>
++#include <linux/screen_info.h>
+
+ #include <asm/machvec.h>
+
+@@ -37,6 +38,27 @@ static void pci_fixup_video(struct pci_d
+ return;
+ /* Maybe, this machine supports legacy memory map. */
+
++ if (!vga_default_device()) {
++ resource_size_t start, end;
++ int i;
++
++ /* Does firmware framebuffer belong to us? */
++ for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
++ if (!(pci_resource_flags(pdev, i) & IORESOURCE_MEM))
++ continue;
++
++ start = pci_resource_start(pdev, i);
++ end = pci_resource_end(pdev, i);
++
++ if (!start || !end)
++ continue;
++
++ if (screen_info.lfb_base >= start &&
++ (screen_info.lfb_base + screen_info.lfb_size) < end)
++ vga_set_default_device(pdev);
++ }
++ }
++
+ /* Is VGA routed to us? */
+ bus = pdev->bus;
+ while (bus) {
+--- a/arch/x86/include/asm/vga.h
++++ b/arch/x86/include/asm/vga.h
+@@ -17,10 +17,4 @@
+ #define vga_readb(x) (*(x))
+ #define vga_writeb(x, y) (*(y) = (x))
+
+-#ifdef CONFIG_FB_EFI
+-#define __ARCH_HAS_VGA_DEFAULT_DEVICE
+-extern struct pci_dev *vga_default_device(void);
+-extern void vga_set_default_device(struct pci_dev *pdev);
+-#endif
+-
+ #endif /* _ASM_X86_VGA_H */
+--- a/arch/x86/pci/fixup.c
++++ b/arch/x86/pci/fixup.c
+@@ -326,6 +326,27 @@ static void pci_fixup_video(struct pci_d
+ struct pci_bus *bus;
+ u16 config;
+
++ if (!vga_default_device()) {
++ resource_size_t start, end;
++ int i;
++
++ /* Does firmware framebuffer belong to us? */
++ for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
++ if (!(pci_resource_flags(pdev, i) & IORESOURCE_MEM))
++ continue;
++
++ start = pci_resource_start(pdev, i);
++ end = pci_resource_end(pdev, i);
++
++ if (!start || !end)
++ continue;
++
++ if (screen_info.lfb_base >= start &&
++ (screen_info.lfb_base + screen_info.lfb_size) < end)
++ vga_set_default_device(pdev);
++ }
++ }
++
+ /* Is VGA routed to us? */
+ bus = pdev->bus;
+ while (bus) {
+--- a/drivers/video/fbdev/efifb.c
++++ b/drivers/video/fbdev/efifb.c
+@@ -19,8 +19,6 @@
+
+ static bool request_mem_succeeded = false;
+
+-static struct pci_dev *default_vga;
+-
+ static struct fb_var_screeninfo efifb_defined = {
+ .activate = FB_ACTIVATE_NOW,
+ .height = -1,
+@@ -84,23 +82,10 @@ static struct fb_ops efifb_ops = {
+ .fb_imageblit = cfb_imageblit,
+ };
+
+-struct pci_dev *vga_default_device(void)
+-{
+- return default_vga;
+-}
+-
+-EXPORT_SYMBOL_GPL(vga_default_device);
+-
+-void vga_set_default_device(struct pci_dev *pdev)
+-{
+- default_vga = pdev;
+-}
+-
+ static int efifb_setup(char *options)
+ {
+ char *this_opt;
+ int i;
+- struct pci_dev *dev = NULL;
+
+ if (options && *options) {
+ while ((this_opt = strsep(&options, ",")) != NULL) {
+@@ -126,30 +111,6 @@ static int efifb_setup(char *options)
+ }
+ }
+
+- for_each_pci_dev(dev) {
+- int i;
+-
+- if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
+- continue;
+-
+- for (i=0; i < DEVICE_COUNT_RESOURCE; i++) {
+- resource_size_t start, end;
+-
+- if (!(pci_resource_flags(dev, i) & IORESOURCE_MEM))
+- continue;
+-
+- start = pci_resource_start(dev, i);
+- end = pci_resource_end(dev, i);
+-
+- if (!start || !end)
+- continue;
+-
+- if (screen_info.lfb_base >= start &&
+- (screen_info.lfb_base + screen_info.lfb_size) < end)
+- default_vga = dev;
+- }
+- }
+-
+ return 0;
+ }
+
--- /dev/null
+From ed5c41d30ef2ce578fd6b6e2f7ec23f2a58b1eba Mon Sep 17 00:00:00 2001
+From: Thomas Gleixner <tglx@linutronix.de>
+Date: Tue, 5 Aug 2014 22:57:19 +0200
+Subject: x86: MCE: Add raw_lock conversion again
+
+From: Thomas Gleixner <tglx@linutronix.de>
+
+commit ed5c41d30ef2ce578fd6b6e2f7ec23f2a58b1eba upstream.
+
+Commit ea431643d6c3 ("x86/mce: Fix CMCI preemption bugs") breaks RT by
+the completely unrelated conversion of the cmci_discover_lock to a
+regular (non raw) spinlock. This lock was annotated in commit
+59d958d2c7de ("locking, x86: mce: Annotate cmci_discover_lock as raw")
+with a proper explanation why.
+
+The argument for converting the lock back to a regular spinlock was:
+
+ - it does percpu ops without disabling preemption. Preemption is not
+ disabled due to the mistaken use of a raw spinlock.
+
+Which is complete nonsense. The raw_spinlock is disabling preemption in
+the same way as a regular spinlock. In mainline spinlock maps to
+raw_spinlock, in RT spinlock becomes a "sleeping" lock.
+
+raw_spinlock has on RT exactly the same semantics as in mainline. And
+because this lock is taken in non preemptible context it must be raw on
+RT.
+
+Undo the locking brainfart.
+
+Reported-by: Clark Williams <williams@redhat.com>
+Reported-by: Steven Rostedt <rostedt@goodmis.org>
+Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
+Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/x86/kernel/cpu/mcheck/mce_intel.c | 18 +++++++++---------
+ 1 file changed, 9 insertions(+), 9 deletions(-)
+
+--- a/arch/x86/kernel/cpu/mcheck/mce_intel.c
++++ b/arch/x86/kernel/cpu/mcheck/mce_intel.c
+@@ -42,7 +42,7 @@ static DEFINE_PER_CPU(mce_banks_t, mce_b
+ * cmci_discover_lock protects against parallel discovery attempts
+ * which could race against each other.
+ */
+-static DEFINE_SPINLOCK(cmci_discover_lock);
++static DEFINE_RAW_SPINLOCK(cmci_discover_lock);
+
+ #define CMCI_THRESHOLD 1
+ #define CMCI_POLL_INTERVAL (30 * HZ)
+@@ -144,14 +144,14 @@ static void cmci_storm_disable_banks(voi
+ int bank;
+ u64 val;
+
+- spin_lock_irqsave(&cmci_discover_lock, flags);
++ raw_spin_lock_irqsave(&cmci_discover_lock, flags);
+ owned = __get_cpu_var(mce_banks_owned);
+ for_each_set_bit(bank, owned, MAX_NR_BANKS) {
+ rdmsrl(MSR_IA32_MCx_CTL2(bank), val);
+ val &= ~MCI_CTL2_CMCI_EN;
+ wrmsrl(MSR_IA32_MCx_CTL2(bank), val);
+ }
+- spin_unlock_irqrestore(&cmci_discover_lock, flags);
++ raw_spin_unlock_irqrestore(&cmci_discover_lock, flags);
+ }
+
+ static bool cmci_storm_detect(void)
+@@ -211,7 +211,7 @@ static void cmci_discover(int banks)
+ int i;
+ int bios_wrong_thresh = 0;
+
+- spin_lock_irqsave(&cmci_discover_lock, flags);
++ raw_spin_lock_irqsave(&cmci_discover_lock, flags);
+ for (i = 0; i < banks; i++) {
+ u64 val;
+ int bios_zero_thresh = 0;
+@@ -266,7 +266,7 @@ static void cmci_discover(int banks)
+ WARN_ON(!test_bit(i, __get_cpu_var(mce_poll_banks)));
+ }
+ }
+- spin_unlock_irqrestore(&cmci_discover_lock, flags);
++ raw_spin_unlock_irqrestore(&cmci_discover_lock, flags);
+ if (mca_cfg.bios_cmci_threshold && bios_wrong_thresh) {
+ pr_info_once(
+ "bios_cmci_threshold: Some banks do not have valid thresholds set\n");
+@@ -316,10 +316,10 @@ void cmci_clear(void)
+
+ if (!cmci_supported(&banks))
+ return;
+- spin_lock_irqsave(&cmci_discover_lock, flags);
++ raw_spin_lock_irqsave(&cmci_discover_lock, flags);
+ for (i = 0; i < banks; i++)
+ __cmci_disable_bank(i);
+- spin_unlock_irqrestore(&cmci_discover_lock, flags);
++ raw_spin_unlock_irqrestore(&cmci_discover_lock, flags);
+ }
+
+ static void cmci_rediscover_work_func(void *arg)
+@@ -360,9 +360,9 @@ void cmci_disable_bank(int bank)
+ if (!cmci_supported(&banks))
+ return;
+
+- spin_lock_irqsave(&cmci_discover_lock, flags);
++ raw_spin_lock_irqsave(&cmci_discover_lock, flags);
+ __cmci_disable_bank(bank);
+- spin_unlock_irqrestore(&cmci_discover_lock, flags);
++ raw_spin_unlock_irqrestore(&cmci_discover_lock, flags);
+ }
+
+ static void intel_init_cmci(void)
--- /dev/null
+From b38af4721f59d0b564468f623b3e52a638195015 Mon Sep 17 00:00:00 2001
+From: Hugh Dickins <hughd@google.com>
+Date: Fri, 29 Aug 2014 15:18:44 -0700
+Subject: x86,mm: fix pte_special versus pte_numa
+
+From: Hugh Dickins <hughd@google.com>
+
+commit b38af4721f59d0b564468f623b3e52a638195015 upstream.
+
+Sasha Levin has shown oopses on ffffea0003480048 and ffffea0003480008 at
+mm/memory.c:1132, running Trinity on different 3.16-rc-next kernels:
+where zap_pte_range() checks page->mapping to see if PageAnon(page).
+
+Those addresses fit struct pages for pfns d2001 and d2000, and in each
+dump a register or a stack slot showed d2001730 or d2000730: pte flags
+0x730 are PCD ACCESSED PROTNONE SPECIAL IOMAP; and Sasha's e820 map has
+a hole between cfffffff and 100000000, which would need special access.
+
+Commit c46a7c817e66 ("x86: define _PAGE_NUMA by reusing software bits on
+the PMD and PTE levels") has broken vm_normal_page(): a PROTNONE SPECIAL
+pte no longer passes the pte_special() test, so zap_pte_range() goes on
+to try to access a non-existent struct page.
+
+Fix this by refining pte_special() (SPECIAL with PRESENT or PROTNONE) to
+complement pte_numa() (SPECIAL with neither PRESENT nor PROTNONE). A
+hint that this was a problem was that c46a7c817e66 added pte_numa() test
+to vm_normal_page(), and moved its is_zero_pfn() test from slow to fast
+path: This was papering over a pte_special() snag when the zero page was
+encountered during zap. This patch reverts vm_normal_page() to how it
+was before, relying on pte_special().
+
+It still appears that this patch may be incomplete: aren't there other
+places which need to be handling PROTNONE along with PRESENT? For
+example, pte_mknuma() clears _PAGE_PRESENT and sets _PAGE_NUMA, but on a
+PROT_NONE area, that would make it pte_special(). This is side-stepped
+by the fact that NUMA hinting faults skipped PROT_NONE VMAs and there
+are no grounds where a NUMA hinting fault on a PROT_NONE VMA would be
+interesting.
+
+Fixes: c46a7c817e66 ("x86: define _PAGE_NUMA by reusing software bits on the PMD and PTE levels")
+Reported-by: Sasha Levin <sasha.levin@oracle.com>
+Tested-by: Sasha Levin <sasha.levin@oracle.com>
+Signed-off-by: Hugh Dickins <hughd@google.com>
+Signed-off-by: Mel Gorman <mgorman@suse.de>
+Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
+Cc: Peter Zijlstra <peterz@infradead.org>
+Cc: Rik van Riel <riel@redhat.com>
+Cc: Johannes Weiner <hannes@cmpxchg.org>
+Cc: Cyrill Gorcunov <gorcunov@gmail.com>
+Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/x86/include/asm/pgtable.h | 9 +++++++--
+ mm/memory.c | 7 +++----
+ 2 files changed, 10 insertions(+), 6 deletions(-)
+
+--- a/arch/x86/include/asm/pgtable.h
++++ b/arch/x86/include/asm/pgtable.h
+@@ -131,8 +131,13 @@ static inline int pte_exec(pte_t pte)
+
+ static inline int pte_special(pte_t pte)
+ {
+- return (pte_flags(pte) & (_PAGE_PRESENT|_PAGE_SPECIAL)) ==
+- (_PAGE_PRESENT|_PAGE_SPECIAL);
++ /*
++ * See CONFIG_NUMA_BALANCING pte_numa in include/asm-generic/pgtable.h.
++ * On x86 we have _PAGE_BIT_NUMA == _PAGE_BIT_GLOBAL+1 ==
++ * __PAGE_BIT_SOFTW1 == _PAGE_BIT_SPECIAL.
++ */
++ return (pte_flags(pte) & _PAGE_SPECIAL) &&
++ (pte_flags(pte) & (_PAGE_PRESENT|_PAGE_PROTNONE));
+ }
+
+ static inline unsigned long pte_pfn(pte_t pte)
+--- a/mm/memory.c
++++ b/mm/memory.c
+@@ -751,7 +751,7 @@ struct page *vm_normal_page(struct vm_ar
+ unsigned long pfn = pte_pfn(pte);
+
+ if (HAVE_PTE_SPECIAL) {
+- if (likely(!pte_special(pte) || pte_numa(pte)))
++ if (likely(!pte_special(pte)))
+ goto check_pfn;
+ if (vma->vm_flags & (VM_PFNMAP | VM_MIXEDMAP))
+ return NULL;
+@@ -777,15 +777,14 @@ struct page *vm_normal_page(struct vm_ar
+ }
+ }
+
++ if (is_zero_pfn(pfn))
++ return NULL;
+ check_pfn:
+ if (unlikely(pfn > highest_memmap_pfn)) {
+ print_bad_pte(vma, addr, pte, NULL);
+ return NULL;
+ }
+
+- if (is_zero_pfn(pfn))
+- return NULL;
+-
+ /*
+ * NOTE! We still have PageReserved() pages in the page tables.
+ * eg. VDSO mappings can cause them to exist.
--- /dev/null
+From 8d5999df35314607c38fbd6bdd709e25c3a4eeab Mon Sep 17 00:00:00 2001
+From: David Vrabel <david.vrabel@citrix.com>
+Date: Thu, 7 Aug 2014 17:06:06 +0100
+Subject: x86/xen: resume timer irqs early
+
+From: David Vrabel <david.vrabel@citrix.com>
+
+commit 8d5999df35314607c38fbd6bdd709e25c3a4eeab upstream.
+
+If the timer irqs are resumed during device resume it is possible in
+certain circumstances for the resume to hang early on, before device
+interrupts are resumed. For an Ubuntu 14.04 PVHVM guest this would
+occur in ~0.5% of resume attempts.
+
+It is not entirely clear what is occuring the point of the hang but I
+think a task necessary for the resume calls schedule_timeout(),
+waiting for a timer interrupt (which never arrives). This failure may
+require specific tasks to be running on the other VCPUs to trigger
+(processes are not frozen during a suspend/resume if PREEMPT is
+disabled).
+
+Add IRQF_EARLY_RESUME to the timer interrupts so they are resumed in
+syscore_resume().
+
+Signed-off-by: David Vrabel <david.vrabel@citrix.com>
+Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/x86/xen/time.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/arch/x86/xen/time.c
++++ b/arch/x86/xen/time.c
+@@ -444,7 +444,7 @@ void xen_setup_timer(int cpu)
+
+ irq = bind_virq_to_irqhandler(VIRQ_TIMER, cpu, xen_timer_interrupt,
+ IRQF_PERCPU|IRQF_NOBALANCING|IRQF_TIMER|
+- IRQF_FORCE_RESUME,
++ IRQF_FORCE_RESUME|IRQF_EARLY_RESUME,
+ name, NULL);
+ (void)xen_set_irq_priority(irq, XEN_IRQ_PRIORITY_MAX);
+
--- /dev/null
+From 7d951f3ccb0308c95bf76d5eef9886dea35a7013 Mon Sep 17 00:00:00 2001
+From: David Vrabel <david.vrabel@citrix.com>
+Date: Tue, 5 Aug 2014 11:49:19 +0100
+Subject: x86/xen: use vmap() to map grant table pages in PVH guests
+
+From: David Vrabel <david.vrabel@citrix.com>
+
+commit 7d951f3ccb0308c95bf76d5eef9886dea35a7013 upstream.
+
+Commit b7dd0e350e0b (x86/xen: safely map and unmap grant frames when
+in atomic context) causes PVH guests to crash in
+arch_gnttab_map_shared() when they attempted to map the pages for the
+grant table.
+
+This use of a PV-specific function during the PVH grant table setup is
+non-obvious and not needed. The standard vmap() function does the
+right thing.
+
+Signed-off-by: David Vrabel <david.vrabel@citrix.com>
+Reported-by: Mukesh Rathor <mukesh.rathor@oracle.com>
+Tested-by: Mukesh Rathor <mukesh.rathor@oracle.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/x86/xen/grant-table.c | 10 +++++-----
+ 1 file changed, 5 insertions(+), 5 deletions(-)
+
+--- a/arch/x86/xen/grant-table.c
++++ b/arch/x86/xen/grant-table.c
+@@ -168,6 +168,7 @@ static int __init xlated_setup_gnttab_pa
+ {
+ struct page **pages;
+ xen_pfn_t *pfns;
++ void *vaddr;
+ int rc;
+ unsigned int i;
+ unsigned long nr_grant_frames = gnttab_max_grant_frames();
+@@ -193,21 +194,20 @@ static int __init xlated_setup_gnttab_pa
+ for (i = 0; i < nr_grant_frames; i++)
+ pfns[i] = page_to_pfn(pages[i]);
+
+- rc = arch_gnttab_map_shared(pfns, nr_grant_frames, nr_grant_frames,
+- &xen_auto_xlat_grant_frames.vaddr);
+-
+- if (rc) {
++ vaddr = vmap(pages, nr_grant_frames, 0, PAGE_KERNEL);
++ if (!vaddr) {
+ pr_warn("%s Couldn't map %ld pfns rc:%d\n", __func__,
+ nr_grant_frames, rc);
+ free_xenballooned_pages(nr_grant_frames, pages);
+ kfree(pages);
+ kfree(pfns);
+- return rc;
++ return -ENOMEM;
+ }
+ kfree(pages);
+
+ xen_auto_xlat_grant_frames.pfn = pfns;
+ xen_auto_xlat_grant_frames.count = nr_grant_frames;
++ xen_auto_xlat_grant_frames.vaddr = vaddr;
+
+ return 0;
+ }
--- /dev/null
+From 53b884ac3745353de220d92ef792515c3ae692f0 Mon Sep 17 00:00:00 2001
+From: Andy Lutomirski <luto@amacapital.net>
+Date: Fri, 25 Jul 2014 16:30:27 -0700
+Subject: x86_64/vsyscall: Fix warn_bad_vsyscall log output
+
+From: Andy Lutomirski <luto@amacapital.net>
+
+commit 53b884ac3745353de220d92ef792515c3ae692f0 upstream.
+
+This commit in Linux 3.6:
+
+ commit c767a54ba0657e52e6edaa97cbe0b0a8bf1c1655
+ Author: Joe Perches <joe@perches.com>
+ Date: Mon May 21 19:50:07 2012 -0700
+
+ x86/debug: Add KERN_<LEVEL> to bare printks, convert printks to pr_<level>
+
+caused warn_bad_vsyscall to output garbage in the middle of the
+line. Revert the bad part of it.
+
+The printk in question isn't actually bare; the level is "%s".
+
+The bug this fixes is purely cosmetic; backports are optional.
+
+Signed-off-by: Andy Lutomirski <luto@amacapital.net>
+Link: http://lkml.kernel.org/r/03eac1f24110bbe496ecc12a4df467e0d88466d4.1406330947.git.luto@amacapital.net
+Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/x86/kernel/vsyscall_64.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+--- a/arch/x86/kernel/vsyscall_64.c
++++ b/arch/x86/kernel/vsyscall_64.c
+@@ -81,10 +81,10 @@ static void warn_bad_vsyscall(const char
+ if (!show_unhandled_signals)
+ return;
+
+- pr_notice_ratelimited("%s%s[%d] %s ip:%lx cs:%lx sp:%lx ax:%lx si:%lx di:%lx\n",
+- level, current->comm, task_pid_nr(current),
+- message, regs->ip, regs->cs,
+- regs->sp, regs->ax, regs->si, regs->di);
++ printk_ratelimited("%s%s[%d] %s ip:%lx cs:%lx sp:%lx ax:%lx si:%lx di:%lx\n",
++ level, current->comm, task_pid_nr(current),
++ message, regs->ip, regs->cs,
++ regs->sp, regs->ax, regs->si, regs->di);
+ }
+
+ static int addr_to_vsyscall_nr(unsigned long addr)
--- /dev/null
+From dcecb8fd93a65787130a74e61fdf29932c8d85eb Mon Sep 17 00:00:00 2001
+From: David Vrabel <david.vrabel@citrix.com>
+Date: Thu, 31 Jul 2014 16:22:25 +0100
+Subject: xen/events/fifo: ensure all bitops are properly aligned even on x86
+
+From: David Vrabel <david.vrabel@citrix.com>
+
+commit dcecb8fd93a65787130a74e61fdf29932c8d85eb upstream.
+
+When using the FIFO-based ABI on x86_64, if the last port is at the
+end of an event array page then sync_test_bit() on this port's event
+word will read beyond the end of the page and in certain circumstances
+this may fault.
+
+The fault requires the following page in the kernel's direct mapping
+to be not present, which would mean:
+
+a) the array page is the last page of RAM; or
+
+b) the following page is ballooned out /and/ it has been used for a
+ foreign mapping by a kernel driver (such as netback or blkback)
+ /and/ the grant has been unmapped.
+
+Use the infrastructure added for arm64 to ensure that all bitops
+operating on event words are unsigned long aligned.
+
+Signed-off-by: David Vrabel <david.vrabel@citrix.com>
+Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/xen/events/events_fifo.c | 5 ++---
+ 1 file changed, 2 insertions(+), 3 deletions(-)
+
+--- a/drivers/xen/events/events_fifo.c
++++ b/drivers/xen/events/events_fifo.c
+@@ -67,10 +67,9 @@ static event_word_t *event_array[MAX_EVE
+ static unsigned event_array_pages __read_mostly;
+
+ /*
+- * sync_set_bit() and friends must be unsigned long aligned on non-x86
+- * platforms.
++ * sync_set_bit() and friends must be unsigned long aligned.
+ */
+-#if !defined(CONFIG_X86) && BITS_PER_LONG > 32
++#if BITS_PER_LONG > 32
+
+ #define BM(w) (unsigned long *)((unsigned long)w & ~0x7UL)
+ #define EVTCHN_FIFO_BIT(b, w) \