Bjorn Helgaas [Thu, 7 Nov 2013 22:02:04 +0000 (15:02 -0700)]
Merge branch 'pci/misc' into next
* pci/misc:
PCI: Enable upstream bridges even for VFs on virtual buses
PCI: Add pci_upstream_bridge()
PCI: Add x86_msi.msi_mask_irq() and msix_mask_irq()
Bjorn Helgaas [Wed, 6 Nov 2013 17:00:51 +0000 (10:00 -0700)]
PCI: Enable upstream bridges even for VFs on virtual buses
Previously we enabled the upstream PCI-to-PCI bridge only when
"dev->bus->self != NULL". In the case of a VF on a virtual bus, where
"bus->self == NULL", we didn't enable the upstream bridge.
This fixes that by enabling the upstream bridge of the PF corresponding to
the VF.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Bjorn Helgaas [Wed, 6 Nov 2013 17:11:48 +0000 (10:11 -0700)]
PCI: Add pci_upstream_bridge()
This adds a pci_upstream_bridge() interface to find the PCI-to-PCI bridge
upstream from a device. This is typically just "dev->bus->self", but in
the case of a VF on a virtual bus, we have to start from the corresponding
PF. Returns NULL if there is no upstream PCI bridge, i.e., if the device
is on a root bus.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Konrad Rzeszutek Wilk [Wed, 6 Nov 2013 21:16:56 +0000 (16:16 -0500)]
PCI: Add x86_msi.msi_mask_irq() and msix_mask_irq()
Certain platforms do not allow writes in the MSI-X BARs to setup or tear
down vector values. To combat against the generic code trying to write to
that and either silently being ignored or crashing due to the pagetables
being marked R/O this patch introduces a platform override.
Note that we keep two separate, non-weak, functions default_mask_msi_irqs()
and default_mask_msix_irqs() for the behavior of the arch_mask_msi_irqs()
and arch_mask_msix_irqs(), as the default behavior is needed by x86 PCI
code.
For Xen, which does not allow the guest to write to MSI-X tables - as the
hypervisor is solely responsible for setting the vector values - we
implement two nops.
This fixes a Xen guest crash when passing a PCI device with MSI-X to the
guest. See the bugzilla for more details.
[bhelgaas: add bugzilla info]
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=64581
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
CC: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Bjorn Helgaas [Wed, 6 Nov 2013 23:26:48 +0000 (16:26 -0700)]
Merge branch 'pci/misc' into next
* pci/misc:
PCI: Warn on driver probe return value greater than zero
PCI: Drop warning about drivers that don't use pci_set_master()
PCI: Workaround missing pci_set_master in pci drivers
PCI: Update pcie_ports 'auto' behavior for non-ACPI platforms
Stephen M. Cameron [Fri, 1 Nov 2013 19:34:55 +0000 (14:34 -0500)]
PCI: Warn on driver probe return value greater than zero
Ages ago, drivers could return values greater than zero from their probe
function and this would be regarded as success.
But after
f3ec4f87d607 ("PCI: change device runtime PM settings for probe
and remove") and
967577b06241 ("PCI/PM: Keep runtime PM enabled for unbound
PCI devices"), we set dev->driver to NULL if the driver's probe function
returns a value greater than zero.
__pci_device_probe() treats this as success, and drivers can still mostly
work even with dev->driver == NULL, but PCI power management doesn't work,
and we don't call the driver's remove function on rmmod.
To help catch these driver problems, issue a warning in this case.
[bhelgaas: changelog]
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Bjorn Helgaas [Tue, 5 Nov 2013 20:34:51 +0000 (13:34 -0700)]
PCI: Drop warning about drivers that don't use pci_set_master()
f41f064cf4 ("PCI: Workaround missing pci_set_master in pci drivers") made
pci_enable_bridge() turn on bus mastering if the driver hadn't done so
already. It also added a warning in this case. But there's no reason to
warn about it unless it's actually a problem to enable bus mastering here.
This patch drops the warning because I'm not aware of any such problem.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Paul Bolle <pebolle@tiscali.nl>
Yinghai Lu [Tue, 5 Nov 2013 20:34:38 +0000 (13:34 -0700)]
PCI: Workaround missing pci_set_master in pci drivers
Ben Herrenschmidt found that commit
928bea964827 ("PCI: Delay enabling
bridges until they're needed") breaks PCI in some powerpc environments.
The reason is that the PCIe port driver will call pci_enable_device() on
the bridge, so the device is enabled, but skips pci_set_master because
pcie_port_auto and no acpi on powerpc.
Because of that, pci_enable_bridge() later on (called as a result of the
child device driver doing pci_enable_device) will see the bridge as
already enabled and will not call pci_set_master() on it.
Fixed by add checking in pci_enable_bridge, and call pci_set_master
if driver skip that.
That will make the code more robot and wade off problem for missing
pci_set_master in drivers.
Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bjorn Helgaas [Tue, 5 Nov 2013 00:01:27 +0000 (17:01 -0700)]
Merge branch 'pci/yijing-pci_is_pcie-v2' into next
* pci/yijing-pci_is_pcie-v2:
powerpc/pci: Use pci_is_pcie() to simplify code [fix]
Yijing Wang [Mon, 4 Nov 2013 23:51:31 +0000 (16:51 -0700)]
powerpc/pci: Use pci_is_pcie() to simplify code [fix]
Fix
f0308261b1 ("powerpc/pci: Use pci_is_pcie() to simplify code"). I
accidentally merged v2 instead of v3, so this adds the difference. Without
this, "cap" is the left-over PCI-X capability offset, and we're using it as
the PCIe capability offset.
[bhelgaas: extracted v2->v3 diff]
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Andrew Murray [Sat, 26 Oct 2013 17:23:25 +0000 (18:23 +0100)]
PCI: Update pcie_ports 'auto' behavior for non-ACPI platforms
The pcie_ports parameter, which defaults to 'auto', allows a user
to specify if PCIe port services are disabled ('compat'), always
enabled ('native'), or only used when allowed by the BIOS
('auto').
Where CONFIG_ACPI isn't enabled, as is often the case for non
x86/ia64 platforms, the 'auto' behavior results in that of
'compat'. Thus in order to use port services on these platforms
'pcie_ports=native' must be added to the kernel command line.
This patch results in the 'native' behavior being followed where
'auto' is selected and ACPI is not enabled.
Signed-off-by: Andrew Murray <amurray@embedded-bits.co.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Bjorn Helgaas [Thu, 31 Oct 2013 20:12:40 +0000 (14:12 -0600)]
Merge branch 'pci/misc' into next
* pci/misc:
PCI: Report pci_pme_active() kmalloc failure
mn10300/PCI: Remove useless pcibios_last_bus
frv/PCI: Remove pcibios_last_bus
PCI: Fail MSI/MSI-X initialization if device is not in PCI_D0
x86/PCI: Coalesce multiple overlapping host bridge windows
MAINTAINERS: Add arch/x86/pci to PCI file patterns
PCI/PM: Remove pci_pm_complete()
PCI: Add pci_dev_show_local_cpu() to simplify code
mn10300/PCI: Remove unused pci_mem_start
cris/PCI: Remove unused pci_mem_start
PCI: Make pci_dev_pm_ops static
Conflicts:
drivers/pci/pci-sysfs.c
Bjorn Helgaas [Thu, 31 Oct 2013 20:05:13 +0000 (14:05 -0600)]
Merge branch 'pci/yijing-mps-v1' into next
* pci/yijing-mps-v1:
drm/radeon: use pcie_get_readrq() and pcie_set_readrq() to simplify code
staging: et131x: Use pci_dev->pcie_mpss and pcie_set_readrq() to simplify code
IB/qib: Drop qib_tune_pcie_caps() and qib_tune_pcie_coalesce() return values
IB/qib: Use pcie_set_mps() and pcie_get_mps() to simplify code
IB/qib: Use pci_is_root_bus() to check whether it is a root bus
tile/PCI: use cached pci_dev->pcie_mpss to simplify code
PCI: Export pcie_set_mps() and pcie_get_mps()
Bjorn Helgaas [Thu, 31 Oct 2013 19:58:49 +0000 (13:58 -0600)]
Merge branch 'pci/host-rcar' into next
* pci/host-rcar:
PCI: Add R-Car Gen2 internal PCI support
Bjorn Helgaas [Thu, 31 Oct 2013 19:58:38 +0000 (13:58 -0600)]
Merge branch 'pci/host-imx6' into next
* pci/host-imx6:
PCI: imx6: Probe the PCIe in fs_initcall()
PCI: imx6: Remove redundant of_match_ptr
PCI: imx6: Increase link startup timeout
PCI: imx6: Fix imprecise abort handler
PCI: imx6: Remove redundant dev_err() in imx6_pcie_probe()
Bjorn Helgaas [Thu, 31 Oct 2013 19:58:29 +0000 (13:58 -0600)]
Merge branch 'pci/host-exynos' into next
* pci/host-exynos:
PCI: exynos: Remove redundant of_match_ptr
PCI: designware: Add irq_create_mapping()
PCI: designware: Make dw_pcie_rd_own_conf(), etc., static
PCI: designware: Add header guards
PCI: exynos: Add missing clk_disable_unprepare() on error path
Bjorn Helgaas [Thu, 31 Oct 2013 19:50:08 +0000 (13:50 -0600)]
Merge branch 'pci/gregkh-driver-core' into next
* pci/gregkh-driver-core:
PCI: Make pci_bus_attrs, pci_dev_attrs, dev_rescan_attr, dev_remove_attr, vga_attr static
PCI: convert bus code to use dev_groups
PCI: convert bus code to use drv_groups
PCI: convert bus code to use bus_groups
Marek Vasut [Tue, 15 Oct 2013 16:06:38 +0000 (18:06 +0200)]
PCI: imx6: Probe the PCIe in fs_initcall()
Probe the PCIe driver in fs_initcall() instead of module_init()
to assure that pci_assign_unassigned_resources() will be called
early. This function is called in dw_pcie_host_init(), which is
in turn called from imx6_add_pcie_port(), which is called from
imx6_pcie_probe(). If this is not called early, we will hit
resource collisions since pcieport driver is then probed way too
late.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Frank Li <lznuaa@gmail.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Mohit KUMAR <Mohit.KUMAR@st.com>
Cc: Pratyush Anand <pratyush.anand@st.com>
Cc: Richard Zhu <r65037@freescale.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Sean Cross <xobs@kosagi.com>
Cc: Siva Reddy Kallam <siva.kallam@samsung.com>
Cc: Srikanth T Shivanand <ts.srikanth@samsung.com>
Cc: Tim Harvey <tharvey@gateworks.com>
Cc: Troy Kisky <troy.kisky@boundarydevices.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Valentine Barshak [Tue, 29 Oct 2013 16:12:51 +0000 (20:12 +0400)]
PCI: Add R-Car Gen2 internal PCI support
This adds internal PCI controller driver for R-Car Gen2 SoC. There are
three PCI controllers available with only a single EHCI/OHCI device
built-in on each PCI bus. This gives us three USB channels. Channel 0 is
shared with the USBHS device, while channel 2 is shared with the USBSS.
The PCI controllers do not support I/O port space mapping, and it is not
needed here.
Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Sachin Kamat [Mon, 21 Oct 2013 09:06:41 +0000 (14:36 +0530)]
PCI: imx6: Remove redundant of_match_ptr
imx6_pcie_of_match is always compiled in because PCI_IMX6 depends on
SOC_IMX6Q, which only supports OF build. Hence of_match_ptr is not
required.
[bhelgaas: add changelog details from Shawn]
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Sean Cross <xobs@kosagi.com>
Bjorn Helgaas [Wed, 16 Oct 2013 18:32:53 +0000 (12:32 -0600)]
PCI: Report pci_pme_active() kmalloc failure
Previously, if kmalloc() failed, we claimed "PME# enabled" in dmesg,
even though we didn't add the device to the pci_pme_list. This prints
a more correct warning.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Bjorn Helgaas [Wed, 23 Oct 2013 03:06:20 +0000 (21:06 -0600)]
mn10300/PCI: Remove useless pcibios_last_bus
pcibios_last_bus was apparently copied from x86. On mn10300, it is
statically initialized to -1 and may be set with the "pci=lastbus=<X>"
boot option, but it is never tested. This patch removes everything
related to pcibios_last_bus.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Bjorn Helgaas [Wed, 23 Oct 2013 02:55:46 +0000 (20:55 -0600)]
frv/PCI: Remove pcibios_last_bus
pcibios_last_bus was apparently copied from x86. On FR-V, it is
statically initialized to -1 and never changed unless the user boots
with "pci=lastbus=<X>". I doubt that option is used on FR-V, so this
patch removes all the code related to pcibios_last_bus.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Marek Vasut [Wed, 23 Oct 2013 05:12:18 +0000 (22:12 -0700)]
PCI: imx6: Increase link startup timeout
A longer link startup timeout is required when certain PCI switches are
attached to the root complex. This was tested with a Pericom switch
and a PLX switch.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Tim Harvey <tharvey@gateworks.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Sachin Kamat [Mon, 21 Oct 2013 09:06:43 +0000 (14:36 +0530)]
PCI: exynos: Remove redundant of_match_ptr
This driver is DT only. Hence of_match_ptr is not required.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Tim Harvey [Fri, 18 Oct 2013 00:27:22 +0000 (17:27 -0700)]
PCI: imx6: Fix imprecise abort handler
An imprecise abort is triggered when a port behind a switch is accessed
and no device is present. At enumeration, imprecise aborts are not enabled
thus this ends up getting deferred until the kernel has completed init. At
that point we must not adjust PC - the handler must do nothing, but a
handler must exist.
This fixes random crashes that occur right after freeing init.
Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Yijing Wang [Thu, 10 Oct 2013 12:58:11 +0000 (20:58 +0800)]
PCI: Fail MSI/MSI-X initialization if device is not in PCI_D0
Currently, pci_enable_msi() and pci_enable_msix() return success even if
the device power state is not D0. However, we don't write the MSI message
to the device registers, and the registers will never be updated later.
This patch makes pci_enable_msi() and pci_enable_msix() return an error
instead.
[bhelgaas: changelog]
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Wei Yongjun [Sat, 12 Oct 2013 06:11:02 +0000 (14:11 +0800)]
PCI: imx6: Remove redundant dev_err() in imx6_pcie_probe()
There is an error message within devm_ioremap_resource()
already, so remove the dev_err() call to avoid redundant
error message.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Alexey Neyman [Wed, 9 Oct 2013 22:16:38 +0000 (16:16 -0600)]
x86/PCI: Coalesce multiple overlapping host bridge windows
Previously we coalesced windows by expanding the first overlapping one and
making the second invalid. But we never look at the expanded first window
again, so we fail to notice other windows that overlap it. For example, we
coalesced these:
[io 0x0000-0x03af] // #0
[io 0x03e0-0x0cf7] // #1
[io 0x0000-0xdfff] // #2
into these, which still overlap:
[io 0x0000-0xdfff] // #0
[io 0x03e0-0x0cf7] // #1
The fix is to expand the *second* overlapping resource and ignore the
first, so we get this instead with no overlaps:
[io 0x0000-0xdfff] // #2
[bhelgaas: changelog]
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=62511
Signed-off-by: Alexey Neyman <stilor@att.net>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Bjorn Helgaas [Wed, 9 Oct 2013 20:39:08 +0000 (14:39 -0600)]
MAINTAINERS: Add arch/x86/pci to PCI file patterns
I handle many arch/x86/pci changes, so help those patches get to the
PCI patchwork.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Pratyush Anand [Wed, 9 Oct 2013 12:32:12 +0000 (21:32 +0900)]
PCI: designware: Add irq_create_mapping()
Without irq_create_mapping(), the correct IRQ number cannot be
provided. In this case, it makes problems such as NULL dereference.
Thus, irq_create_mapping() should be added for MSI.
Suggested-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Pratyush Anand <pratyush.anand@st.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Bjorn Helgaas [Wed, 9 Oct 2013 15:12:37 +0000 (09:12 -0600)]
PCI: designware: Make dw_pcie_rd_own_conf(), etc., static
The following variables and functions are used only in pcie-designware.c,
so make them static:
global_io_offset
dw_pcie_rd_own_conf()
dw_pcie_wr_own_conf()
dw_pcie_setup()
dw_pcie_scan_bus()
dw_pcie_map_irq()
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Seungwon Jeon [Wed, 9 Oct 2013 15:12:21 +0000 (09:12 -0600)]
PCI: designware: Add header guards
Add header guards to prevent redundant inclusion.
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Liu Chuansheng [Mon, 7 Oct 2013 21:29:27 +0000 (15:29 -0600)]
PCI/PM: Remove pci_pm_complete()
88d26136 ("PM: Prevent runtime suspend during system resume") removed the
pm_runtime_put_sync() from pci_pm_complete() to PM core code
device_complete().
Here the pci_pm_complete() is doing the same work which can be done in
device_complete(), so we can remove it directly.
Signed-off-by: Liu Chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Yijing Wang [Mon, 30 Sep 2013 07:02:38 +0000 (15:02 +0800)]
PCI: Add pci_dev_show_local_cpu() to simplify code
local_cpus_show() and local_cpulist_show() are almost the same.
This adds a new helper function, pci_dev_show_local_cpu(), to simplify
code.
The same strategy is already used by cpuaffinity_show() and
cpulistaffinity_show().
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Myron Stowe [Sat, 28 Sep 2013 17:59:56 +0000 (11:59 -0600)]
mn10300/PCI: Remove unused pci_mem_start
Remove unused 'pci_mem_start' variable.
Signed-off-by: Myron Stowe <myron.stowe@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: David Howells <dhowells@redhat.com>
CC: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Myron Stowe [Sat, 28 Sep 2013 17:55:49 +0000 (11:55 -0600)]
cris/PCI: Remove unused pci_mem_start
Remove unused 'pci_mem_start' variable.
Signed-off-by: Myron Stowe <myron.stowe@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Mikael Starvik <starvik@axis.com>
CC: Jesper Nilsson <jesper.nilsson@axis.com>
Sachin Kamat [Fri, 4 Oct 2013 18:04:44 +0000 (12:04 -0600)]
PCI: Make pci_dev_pm_ops static
pci_dev_pm_ops is local to pci-driver.c. Make it static.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Sachin Kamat [Sat, 28 Sep 2013 10:12:00 +0000 (15:42 +0530)]
PCI: Make pci_bus_attrs, pci_dev_attrs, dev_rescan_attr, dev_remove_attr, vga_attr static
Local variables used only in this file are made static.
[bhelgaas: also make pci_dev_attrs[] static (from Fengguang)]
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Greg Kroah-Hartman [Mon, 7 Oct 2013 06:55:40 +0000 (23:55 -0700)]
PCI: convert bus code to use dev_groups
The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead. This converts the PCI bus code to use the
correct field.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Greg Kroah-Hartman [Mon, 7 Oct 2013 20:51:20 +0000 (14:51 -0600)]
PCI: convert bus code to use drv_groups
The drv_attrs field of struct bus_type is going away soon, drv_groups
should be used instead. This converts the PCI bus code to use the
correct field.
Cc: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Mon, 7 Oct 2013 20:51:02 +0000 (14:51 -0600)]
PCI: convert bus code to use bus_groups
The bus_attrs field of struct bus_type is going away soon, dev_groups
should be used instead. This converts the PCI bus code to use the
correct field.
Cc: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wei Yongjun [Sun, 29 Sep 2013 02:29:11 +0000 (10:29 +0800)]
PCI: exynos: Add missing clk_disable_unprepare() on error path
Add the missing clk_disable_unprepare() before return
from exynos_pcie_probe() in the error handling case.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Yijing Wang [Mon, 9 Sep 2013 13:13:08 +0000 (21:13 +0800)]
drm/radeon: use pcie_get_readrq() and pcie_set_readrq() to simplify code
Use pcie_get_readrq() and pcie_set_readrq() functions to simplify code.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Yijing Wang [Mon, 9 Sep 2013 13:13:07 +0000 (21:13 +0800)]
staging: et131x: Use pci_dev->pcie_mpss and pcie_set_readrq() to simplify code
The PCI core caches the "PCIe Max Payload Size Supported" in
pci_dev->pcie_mpss, so use that instead of pcie_capability_read_dword().
Also use pcie_set_readrq() instead of pcie_capability_clear_and_set_word()
to simplify code.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Mark Einon <mark.einon@gmail.com>
Bjorn Helgaas [Tue, 24 Sep 2013 20:24:49 +0000 (14:24 -0600)]
IB/qib: Drop qib_tune_pcie_caps() and qib_tune_pcie_coalesce() return values
The callers of qib_tune_pcie_caps() and qib_tune_pcie_coalesce() don't
check the return values, so this patch drops the return values altogether.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Bjorn Helgaas [Fri, 27 Sep 2013 22:35:43 +0000 (16:35 -0600)]
Merge branch 'pci/misc' into next
* pci/misc:
PCI: Remove unused PCI_MSIX_FLAGS_BIRMASK definition
PCI: acpiphp_ibm: Convert to dynamic debug
PCI: acpiphp: Convert to dynamic debug
PCI: Remove Intel Haswell D3 delays
PCI: Pass type, width, and prefetchability for window alignment
PCI: Document reason for using pci_is_root_bus()
PCI: Use pci_is_root_bus() to check for root bus
PCI: Remove unused "is_pcie" from pci_dev structure
PCI: Update pci_find_slot() description in pci.txt
[SCSI] qla2xxx: Use standard PCIe Capability Link register field names
PCI: Fix comment typo, remove unnecessary !! in pci_is_pcie()
PCI: Drop "setting latency timer" messages
Yijing Wang [Thu, 12 Sep 2013 08:20:00 +0000 (16:20 +0800)]
PCI: Remove unused PCI_MSIX_FLAGS_BIRMASK definition
PCI_MSIX_FLAGS_BIRMASK has been replaced by PCI_MSIX_TABLE_BIR for better
readability. Now no one uses it, remove it. No functional change.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Bjorn Helgaas [Fri, 27 Sep 2013 19:27:20 +0000 (13:27 -0600)]
Merge branch 'pci/host-tegra' into next
* pci/host-tegra:
PCI: tegra: Add missing __iomem annotation
Bjorn Helgaas [Fri, 27 Sep 2013 19:24:10 +0000 (13:24 -0600)]
Merge branch 'pci/host-imx6' into next
* pci/host-imx6:
PCI: imx6: Add support for i.MX6 PCIe controller
ARM: imx6q: Add PCIe bits to GPR syscon definition
Sean Cross [Thu, 26 Sep 2013 03:24:47 +0000 (11:24 +0800)]
PCI: imx6: Add support for i.MX6 PCIe controller
Add support for the PCIe port present on the i.MX6 family of controllers.
These use the Synopsis Designware core tied to their own PHY.
Signed-off-by: Sean Cross <xobs@kosagi.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Sean Cross [Thu, 26 Sep 2013 03:24:46 +0000 (11:24 +0800)]
ARM: imx6q: Add PCIe bits to GPR syscon definition
PCIe requires additional bits be defined for GPR8 and GPR12.
Signed-off-by: Sean Cross <xobs@kosagi.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Bjorn Helgaas [Fri, 27 Sep 2013 19:06:41 +0000 (13:06 -0600)]
Merge branch 'pci/host-exynos' into next
* pci/host-exynos:
PCI: exynos: Turn off power of phy block when link failed
PCI: exynos: Add support for MSI
MAINTAINERS: Add Jingoo Han as Samsung Exynos PCIe driver maintainer
Lan Tianyu [Wed, 25 Sep 2013 00:07:28 +0000 (18:07 -0600)]
PCI: acpiphp_ibm: Convert to dynamic debug
This patch is to use pr_debug/info/warn/err to replace acpiphp_ibm debug
functions and remove module's debug param.
User interface change: before this patch, boot with the "acpiphp_ibm.debug"
kernel parameter to turn on debug. After this patch, set
CONFIG_DYNAMIC_DEBUG=y and boot with "acpiphp_ibm.dyndebug=+p" instead.
See Documentation/dynamic-debug-howto.txt.
[bhelgaas: changelog]
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Lan Tianyu [Wed, 25 Sep 2013 00:11:48 +0000 (18:11 -0600)]
PCI: acpiphp: Convert to dynamic debug
This patch is to use pr_debug/info/warn/err to replace acpiphp debug
functions and remove module's debug param.
User interface change: before this patch, boot with the "acpiphp.debug"
kernel parameter to turn on debug. After this patch, set
CONFIG_DYNAMIC_DEBUG=y and boot with "acpiphp.dyndebug=+p" instead.
See Documentation/dynamic-debug-howto.txt.
[bhelgaas: changelog]
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Jingoo Han [Wed, 25 Sep 2013 22:40:54 +0000 (16:40 -0600)]
PCI: tegra: Add missing __iomem annotation
Added missing __iomem annotation in order to fix the following
sparse warnings:
drivers/pci/host/pci-tegra.c:411:41: warning: incorrect type in return expression (different address spaces)
drivers/pci/host/pci-tegra.c:411:41: expected void [noderef] <asn:2>*
drivers/pci/host/pci-tegra.c:411:41: got void *addr
drivers/pci/host/pci-tegra.c:419:25: warning: incorrect type in return expression (different address spaces)
drivers/pci/host/pci-tegra.c:419:25: expected void [noderef] <asn:2>*
drivers/pci/host/pci-tegra.c:419:25: got void *addr
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Jingoo Han [Fri, 6 Sep 2013 08:21:45 +0000 (17:21 +0900)]
PCI: exynos: Turn off power of phy block when link failed
When link failed, there is no need to turn on phy block. Also,
turning on phy block is added, in order to turn on phy block
regardless of the default value of phy registers.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Jingoo Han [Fri, 6 Sep 2013 06:54:59 +0000 (15:54 +0900)]
PCI: exynos: Add support for MSI
This patch adds support for Message Signaled Interrupt in the
Exynos PCIe driver using Synopsys designware PCIe core IP.
Signed-off-by: Siva Reddy Kallam <siva.kallam@samsung.com>
Signed-off-by: Srikanth T Shivanand <ts.srikanth@samsung.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Pratyush Anand <pratyush.anand@st.com>
Cc: Mohit KUMAR <Mohit.KUMAR@st.com>
Jingoo Han [Thu, 12 Sep 2013 11:29:24 +0000 (20:29 +0900)]
MAINTAINERS: Add Jingoo Han as Samsung Exynos PCIe driver maintainer
Add myself as maintainer for Samsung Exynos PCIe driver.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Todd E Brandt [Tue, 10 Sep 2013 23:10:43 +0000 (16:10 -0700)]
PCI: Remove Intel Haswell D3 delays
The latest Intel Haswell chipsets have a hardware optimization which
allows on-chip PCI devices to ignore the 10ms delay before entering
or exiting D3 suspend.
This patch implements the optimization as a PCI quirk, since we want
tight control over which devices use it. This way we can test each device
individually to be sure there are no issues before we enable the quirk.
The first set of devices are from the Haswell platform, which includes
every PCI device that is on the northbridge and southbridge.
This patch reduces the Haswell suspend time from 93 ms to 47 ms and resume
time from 160 ms to 64 ms.
Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Wei Yang [Fri, 6 Sep 2013 01:45:58 +0000 (09:45 +0800)]
PCI: Pass type, width, and prefetchability for window alignment
When calculating window_alignment(), type information like IORESOURCE_MEM
and IORESOURCE_PREFETCH may not be enough. For example, on powernv, we
need to know whether the window is 64-bit or not.
This patch passes the full resource type (res->flags) for window alignment.
[bhelgaas: changelog]
Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Bjorn Helgaas [Tue, 24 Sep 2013 21:14:57 +0000 (15:14 -0600)]
PCI: Document reason for using pci_is_root_bus()
Some code assumes "bus->self == NULL" means the bus is a root bus. This
adds a comment explaining why this is incorrect ("virtual" buses added for
SR-IOV have "bus->self == NULL" but are not root buses).
No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Wei Yang [Fri, 6 Sep 2013 01:45:56 +0000 (09:45 +0800)]
PCI: Use pci_is_root_bus() to check for root bus
In __pci_bus_size_bridges() we check whether a bus is a root bus by testing
bus->self. As indicated by commit
79af72d7 ("PCI: pci_is_root_bus
helper"), bus->self == NULL is not a proper way to check for a root bus.
One issue is that "virtual" buses added for SR-IOV (via virtfn_add_bus())
have bus->self == NULL but are not root buses.
This patch changes it to pci_is_root_bus() to check whether it is a root
bus.
[bhelgaas: changelog]
Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Yijing Wang [Tue, 3 Sep 2013 02:02:09 +0000 (10:02 +0800)]
PCI: Remove unused "is_pcie" from pci_dev structure
No one uses "is_pcie" now; remove this obsolete member.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Yijing Wang [Mon, 2 Sep 2013 06:34:40 +0000 (14:34 +0800)]
PCI: Update pci_find_slot() description in pci.txt
pci_find_slot() has been removed from the kernel. Document its
closest replacement, pci_get_domain_bus_and_slot(), instead.
[bhelgaas: fix indentation, keep mention in "obsolete" section]
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Bjorn Helgaas [Fri, 6 Sep 2013 17:26:24 +0000 (11:26 -0600)]
[SCSI] qla2xxx: Use standard PCIe Capability Link register field names
Use the standard #defines for PCIe Link Capability register fields
rather than bare numbers. This also uses the new PCI Express Capability
accessor rather than reading the capability directly.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Acked-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Joe Perches [Tue, 3 Sep 2013 20:31:05 +0000 (13:31 -0700)]
PCI: Fix comment typo, remove unnecessary !! in pci_is_pcie()
Use normal kernel-doc "Returns:" instead of "retrun"
Assignment to bool is always 1 or 0 so the !! isn't necessary.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Bjorn Helgaas [Mon, 23 Sep 2013 21:25:26 +0000 (15:25 -0600)]
PCI: Drop "setting latency timer" messages
This message isn't useful any more, so drop it.
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=60636
Reported-by: Oleksil Shevchuk <alxchk@gmail.com>
Reference: http://lkml.kernel.org/r/CALCETrWkr53ZjqdN3t7rTTfr=+ZKZXJoYsuBcwPf0kN_33GfAw@mail.gmail.com
Reported-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Yijing Wang [Mon, 9 Sep 2013 13:13:06 +0000 (21:13 +0800)]
IB/qib: Use pcie_set_mps() and pcie_get_mps() to simplify code
Refactor qib_tune_pcie_caps(). Use pcie_get_mps(), pcie_set_mps(),
pcie_get_readrq(), and pcie_set_readrq() to simplify the code. The PCI
core caches the "PCIe Max Payload Size Supported" in pci_dev->pcie_mpss,
so use that instead of pcie_capability_read_word(). Remove the unused
val2fld() and fld2val().
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Yijing Wang [Mon, 9 Sep 2013 13:13:05 +0000 (21:13 +0800)]
IB/qib: Use pci_is_root_bus() to check whether it is a root bus
Use pci_is_root_bus() instead of "if (bus->parent)" statement
for better readability.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Yijing Wang [Mon, 9 Sep 2013 13:13:04 +0000 (21:13 +0800)]
tile/PCI: use cached pci_dev->pcie_mpss to simplify code
The PCI core caches the "PCIe Max Payload Size Supported" in
pci_dev->pcie_mpss, so use that instead of pcie_capability_read_dword().
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Yijing Wang [Tue, 24 Sep 2013 18:08:06 +0000 (12:08 -0600)]
PCI: Export pcie_set_mps() and pcie_get_mps()
Export pcie_get_mps() and pcie_set_mps() functions so drivers can use
them to simplify code.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Bjorn Helgaas [Tue, 24 Sep 2013 00:00:08 +0000 (18:00 -0600)]
Merge branch 'pci/yijing-pci_is_pcie-v2' into next
* pci/yijing-pci_is_pcie-v2:
powerpc/pci: Use pci_is_pcie() to simplify code
[SCSI] qla2xxx: Use pcie_is_pcie() to simplify code
[SCSI] csiostor: Use pcie_capability_clear_and_set_word() to simplify code
[SCSI] bfa: Use pcie_set()/get_readrq() to simplify code
x86/pci: Use cached pci_dev->pcie_cap to simplify code
PCI: Use pci_is_pcie() to simplify code
Bjorn Helgaas [Mon, 23 Sep 2013 23:58:08 +0000 (17:58 -0600)]
Merge branch 'pci/bjorn-osc' into next
* pci/bjorn-osc:
PCI/ACPI: Decode _OSC bitmasks symbolically
PCI/ACPI: Separate out _OSC "we don't support enough services" path
PCI/ACPI: Separate out _OSC "PCIe port services disabled" path
PCI/ACPI: Skip _OSC control tests if _OSC support call failed
PCI/ACPI: Run _OSC only once for OSPM feature support
PCI/ACPI: Split _OSC "support" and "control" flags into separate variables
PCI/ACPI: Move _OSC stuff from acpi_pci_root_add() to negotiate_os_control()
PCI/ACPI: Drop unnecessary _OSC existence tests
PCI/ACPI: Name _OSC #defines more consistently
ACPI: Write OSC_PCI_CONTROL_MASKS like OSC_PCI_SUPPORT_MASKS
ACPI: Remove unused OSC_PCI_NATIVE_HOTPLUG
ACPI: Tidy acpi_run_osc() declarations
ACPI: Rename OSC_QUERY_TYPE to OSC_QUERY_DWORD
ACPI: Write _OSC bit field definitions in hex
Bjorn Helgaas [Thu, 5 Sep 2013 21:07:45 +0000 (15:07 -0600)]
PCI/ACPI: Decode _OSC bitmasks symbolically
This updates _OSC-related messages to be more human-readable. We now always
show the features we declare support for (this was previously invisible) as
well as the features we are granted control of.
Typical changes:
-acpi PNP0A08:00: Requesting ACPI _OSC control (0x1d)
-acpi PNP0A08:00: ACPI _OSC control (0x1d) granted
+acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI]
+acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Bjorn Helgaas [Thu, 5 Sep 2013 21:50:52 +0000 (15:50 -0600)]
PCI/ACPI: Separate out _OSC "we don't support enough services" path
Test the services we support (extended config space, ASPM, MSI) separately
so we can give a better message. Previously we said "Unable to request
_OSC control..."; now we'll say "we support %#02x but %#02x are required".
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Bjorn Helgaas [Thu, 5 Sep 2013 21:07:43 +0000 (15:07 -0600)]
PCI/ACPI: Separate out _OSC "PCIe port services disabled" path
Test "pcie_ports_disabled" separately so we can give a better message.
Previously we said "Unable to request _OSC control..."; now we'll
say "PCIe port services disabled; not requesting _OSC control".
"pcie_ports_disabled" is true when CONFIG_PCIEPORTBUS=n or we boot
with "pcie_ports=compat".
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Bjorn Helgaas [Thu, 5 Sep 2013 21:07:43 +0000 (15:07 -0600)]
PCI/ACPI: Skip _OSC control tests if _OSC support call failed
If the _OSC support notification fails, we will never request control
(because "support == OSC_PCI_SEGMENT_GROUPS_SUPPORT", which doesn't include
all the features in ACPI_PCIE_REQ_SUPPORT), so we can return early to
simplify the code.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Bjorn Helgaas [Thu, 5 Sep 2013 21:07:42 +0000 (15:07 -0600)]
PCI/ACPI: Run _OSC only once for OSPM feature support
Previously, we ran _OSC once to tell the platform that we support
PCI Segment Groups, then we ran it again if we supported any additional
features (ASPM, MSI, or extended config space). I don't think it's
necessary to run it twice, since we can easily build the complete
mask of features we support before running _OSC the first time.
We run _OSC again later when requesting control of PCIe features;
that's unaffected by this change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Bjorn Helgaas [Thu, 5 Sep 2013 21:07:42 +0000 (15:07 -0600)]
PCI/ACPI: Split _OSC "support" and "control" flags into separate variables
Previously we used "flags" for both:
- the bitmask of features we support (segments, ASPM, MSI, etc.), and
- the bitmask of features we want to control (native hotplug, AER, etc.)
To reduce confusion, this patch splits this into two variables:
"support" is the bitmask of features we support, and "control" is the
bitmask of features we want to control. No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Bjorn Helgaas [Thu, 5 Sep 2013 21:07:41 +0000 (15:07 -0600)]
PCI/ACPI: Move _OSC stuff from acpi_pci_root_add() to negotiate_os_control()
This doesn't change any of the _OSC code; it just moves it out into
a new function so it doesn't clutter acpi_pci_root_add() so much. This
also enables future simplifications.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Bjorn Helgaas [Thu, 5 Sep 2013 21:07:41 +0000 (15:07 -0600)]
PCI/ACPI: Drop unnecessary _OSC existence tests
There's no need to check whether _OSC exists here; we eventually
call acpi_evaluate_object(..., "_OSC", ...), and that will fail
gracefully if _OSC doesn't exist.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Bjorn Helgaas [Thu, 5 Sep 2013 21:07:39 +0000 (15:07 -0600)]
PCI/ACPI: Name _OSC #defines more consistently
Make PCI Host Bridge _OSC #defines more consistent. No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Bjorn Helgaas [Thu, 5 Sep 2013 21:24:24 +0000 (15:24 -0600)]
ACPI: Write OSC_PCI_CONTROL_MASKS like OSC_PCI_SUPPORT_MASKS
We write OSC_PCI_SUPPORT_MASKS as a simple 0x1f, so do the same
for OSC_PCI_CONTROL_MASKS. No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Bjorn Helgaas [Thu, 5 Sep 2013 21:22:11 +0000 (15:22 -0600)]
ACPI: Remove unused OSC_PCI_NATIVE_HOTPLUG
OSC_PCI_NATIVE_HOTPLUG is completely unused, so remove it. No functional
change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Bjorn Helgaas [Thu, 5 Sep 2013 21:05:55 +0000 (15:05 -0600)]
ACPI: Tidy acpi_run_osc() declarations
Move the acpi_run_osc() prototype next to the related structure and
update comments. No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Bjorn Helgaas [Thu, 5 Sep 2013 21:05:54 +0000 (15:05 -0600)]
ACPI: Rename OSC_QUERY_TYPE to OSC_QUERY_DWORD
OSC_QUERY_TYPE isn't a "type"; it's an index into the _OSC Capabilities
Buffer of DWORDs. Rename OSC_QUERY_TYPE, OSC_SUPPORT_TYPE, and
OSC_CONTROL_TYPE to OSC_QUERY_DWORD, etc., to make this clear.
No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Bjorn Helgaas [Thu, 5 Sep 2013 21:05:53 +0000 (15:05 -0600)]
ACPI: Write _OSC bit field definitions in hex
Update _OSC definition comments to correspond to the 1-based spec wording
(DWORD 1, etc.) Write _OSC field #defines as hex to make clear that they
are bits in a 32-bit DWORD, not arbitrary values. No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Yijing Wang [Thu, 5 Sep 2013 07:55:27 +0000 (15:55 +0800)]
powerpc/pci: Use pci_is_pcie() to simplify code
Use pci_is_pcie() to simplify code.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Reviewed-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Cc: Gavin Shan <shangw@linux.vnet.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Yijing Wang [Thu, 5 Sep 2013 07:55:30 +0000 (15:55 +0800)]
[SCSI] qla2xxx: Use pcie_is_pcie() to simplify code
Use pci_is_pcie() instead of pci_find_capability() to simplify code.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Cc: Andrew Vasquez <andrew.vasquez@qlogic.com>
Cc: linux-driver@qlogic.com
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Yijing Wang [Thu, 5 Sep 2013 07:55:26 +0000 (15:55 +0800)]
[SCSI] csiostor: Use pcie_capability_clear_and_set_word() to simplify code
pci_is_pcie() and pcie_capability_clear_and_set_word() make it trivial
to set the PCIe Completion Timeout, so just fold the
csio_set_pcie_completion_timeout() function into its caller.
[bhelgaas: changelog, fold csio_set_pcie_completion_timeout() into caller]
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: Naresh Kumar Inna <naresh@chelsio.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jesper Juhl <jj@chaosbits.net>
Yijing Wang [Thu, 5 Sep 2013 07:55:25 +0000 (15:55 +0800)]
[SCSI] bfa: Use pcie_set()/get_readrq() to simplify code
Use pcie_get_readrq()/pcie_set_readrq() to simplify code.
Jon Mason proposed a similar patch a couple years ago (see below).
[bhelgaas: validate pcie_max_read_reqsz, add pointer to Jon's patch]
Reference: http://lkml.kernel.org/r/
1309191190-14670-1-git-send-email-jdmason@kudzu.us
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Anil Gurumurthy <agurumur@brocade.com>
Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Yijing Wang [Thu, 5 Sep 2013 07:55:28 +0000 (15:55 +0800)]
x86/pci: Use cached pci_dev->pcie_cap to simplify code
The PCI core caches the PCIe Capability offset in pci_dev->pcie_cap, so
use that instead of pci_find_capability(). Use pci_bus_set_ops() when
replacing the device pci_ops. And use #defines instead of numeric
constants.
[bhelgaas: changelog, also use PCI_EXP_LNKCTL_ASPMC]
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Yijing Wang [Thu, 5 Sep 2013 07:55:29 +0000 (15:55 +0800)]
PCI: Use pci_is_pcie() to simplify code
Use pci_is_pcie() instead of pci_find_capability() to simplify code.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Linus Torvalds [Mon, 23 Sep 2013 22:41:09 +0000 (15:41 -0700)]
Linux 3.12-rc2
Linus Torvalds [Mon, 23 Sep 2013 19:53:07 +0000 (12:53 -0700)]
Merge tag 'staging-3.12-rc2' of git://git./linux/kernel/git/gregkh/staging
Pull staging fixes from Greg KH:
"Here are a number of small staging tree and iio driver fixes. Nothing
major, just lots of little things"
* tag 'staging-3.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (34 commits)
iio:buffer_cb: Add missing iio_buffer_init()
iio: Prevent race between IIO chardev opening and IIO device free
iio: fix: Keep a reference to the IIO device for open file descriptors
iio: Stop sampling when the device is removed
iio: Fix crash when scan_bytes is computed with active_scan_mask == NULL
iio: Fix mcp4725 dev-to-indio_dev conversion in suspend/resume
iio: Fix bma180 dev-to-indio_dev conversion in suspend/resume
iio: Fix tmp006 dev-to-indio_dev conversion in suspend/resume
iio: iio_device_add_event_sysfs() bugfix
staging: iio:
ade7854-spi: Fix return value
staging:iio:hmc5843: Fix measurement conversion
iio: isl29018: Fix uninitialized value
staging:iio:dummy fix kfifo_buf kconfig dependency issue if kfifo modular and buffer enabled for built in dummy driver.
iio: at91: fix adc_clk overflow
staging: line6: add bounds check in snd_toneport_source_put()
Staging: comedi: Fix dependencies for drivers misclassified as PCI
staging: r8188eu: Adjust RX gain
staging: r8188eu: Fix smatch warning in core/rtw_ieee80211.
staging: r8188eu: Fix smatch error in core/rtw_mlme_ext.c
staging: r8188eu: Fix Smatch off-by-one warning in hal/rtl8188e_hal_init.c
...
Linus Torvalds [Mon, 23 Sep 2013 19:52:35 +0000 (12:52 -0700)]
Merge tag 'usb-3.12-rc2' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a number of small USB fixes for 3.12-rc2.
One is a revert of a EHCI change that isn't quite ready for 3.12.
Others are minor things, gadget fixes, Kconfig fixes, and some quirks
and documentation updates.
All have been in linux-next for a bit"
* tag 'usb-3.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: pl2303: distinguish between original and cloned HX chips
USB: Faraday fotg210: fix email addresses
USB: fix typo in usb serial simple driver Kconfig
Revert "USB: EHCI: support running URB giveback in tasklet context"
usb: s3c-hsotg: do not disconnect gadget when receiving ErlySusp intr
usb: s3c-hsotg: fix unregistration function
usb: gadget: f_mass_storage: reset endpoint driver data when disabled
usb: host: fsl-mph-dr-of: Staticize local symbols
usb: gadget: f_eem: Staticize eem_alloc
usb: gadget: f_ecm: Staticize ecm_alloc
usb: phy: omap-usb3: Fix return value
usb: dwc3: gadget: avoid memory leak when failing to allocate all eps
usb: dwc3: remove extcon dependency
usb: gadget: add '__ref' for rndis_config_register() and cdc_config_register()
usb: dwc3: pci: add support for BayTrail
usb: gadget: cdc2: fix conversion to new interface of f_ecm
usb: gadget: fix a bug and a WARN_ON in dummy-hcd
usb: gadget: mv_u3d_core: fix violation of locking discipline in mv_u3d_ep_disable()
Linus Torvalds [Mon, 23 Sep 2013 02:51:49 +0000 (19:51 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
- some small fixes for msm and exynos
- a regression revert affecting nouveau users with old userspace
- intel pageflip deadlock and gpu hang fixes, hsw modesetting hangs
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (22 commits)
Revert "drm: mark context support as a legacy subsystem"
drm/i915: Don't enable the cursor on a disable pipe
drm/i915: do not update cursor in crtc mode set
drm/exynos: fix return value check in lowlevel_buffer_allocate()
drm/exynos: Fix address space warnings in exynos_drm_fbdev.c
drm/exynos: Fix address space warning in exynos_drm_buf.c
drm/exynos: Remove redundant OF dependency
drm/msm: drop unnecessary set_need_resched()
drm/i915: kill set_need_resched
drm/msm: fix potential NULL pointer dereference
drm/i915/dvo: set crtc timings again for panel fixed modes
drm/i915/sdvo: Robustify the dtd<->drm_mode conversions
drm/msm: workaround for missing irq
drm/msm: return -EBUSY if bo still active
drm/msm: fix return value check in ERR_PTR()
drm/msm: fix cmdstream size check
drm/msm: hangcheck harder
drm/msm: handle read vs write fences
drm/i915/sdvo: Fully translate sync flags in the dtd->mode conversion
drm/i915: Use proper print format for debug prints
...
Linus Torvalds [Sun, 22 Sep 2013 22:00:11 +0000 (15:00 -0700)]
Merge branch 'for-3.12/core' of git://git.kernel.dk/linux-block
Pull block IO fixes from Jens Axboe:
"After merge window, no new stuff this time only a collection of neatly
confined and simple fixes"
* 'for-3.12/core' of git://git.kernel.dk/linux-block:
cfq: explicitly use 64bit divide operation for 64bit arguments
block: Add nr_bios to block_rq_remap tracepoint
If the queue is dying then we only call the rq->end_io callout. This leaves bios setup on the request, because the caller assumes when the blk_execute_rq_nowait/blk_execute_rq call has completed that the rq->bios have been cleaned up.
bio-integrity: Fix use of bs->bio_integrity_pool after free
blkcg: relocate root_blkg setting and clearing
block: Convert kmalloc_node(...GFP_ZERO...) to kzalloc_node(...)
block: trace all devices plug operation
Linus Torvalds [Sun, 22 Sep 2013 21:58:49 +0000 (14:58 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"These are mostly bug fixes and a two small performance fixes. The
most important of the bunch are Josef's fix for a snapshotting
regression and Mark's update to fix compile problems on arm"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (25 commits)
Btrfs: create the uuid tree on remount rw
btrfs: change extent-same to copy entire argument struct
Btrfs: dir_inode_operations should use btrfs_update_time also
btrfs: Add btrfs: prefix to kernel log output
btrfs: refuse to remount read-write after abort
Btrfs: btrfs_ioctl_default_subvol: Revert back to toplevel subvolume when arg is 0
Btrfs: don't leak transaction in btrfs_sync_file()
Btrfs: add the missing mutex unlock in write_all_supers()
Btrfs: iput inode on allocation failure
Btrfs: remove space_info->reservation_progress
Btrfs: kill delay_iput arg to the wait_ordered functions
Btrfs: fix worst case calculator for space usage
Revert "Btrfs: rework the overcommit logic to be based on the total size"
Btrfs: improve replacing nocow extents
Btrfs: drop dir i_size when adding new names on replay
Btrfs: replay dir_index items before other items
Btrfs: check roots last log commit when checking if an inode has been logged
Btrfs: actually log directory we are fsync()'ing
Btrfs: actually limit the size of delalloc range
Btrfs: allocate the free space by the existed max extent size when ENOSPC
...
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