| Commit message (Collapse) | Author | Age |
|---|
| ... | |
| | | | | | | | | | | | | |
| | | \ \ \ \ \ \ \ \ \ | |
| | | \ \ \ \ \ \ \ \ \ | |
| | | \ \ \ \ \ \ \ \ \ | |
| | |\ \ \ \ \ \ \ \ \ \ \ \
| | | | | |/ / / / / / / /
| | | | |/| | | / / / / /
| | | |_|_|_|_|/ / / / /
| | |/| | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | | |
* pci/host-exynos:
PCI: exynos: Remove unnecessary OOM messages
* pci/host-rcar:
PCI: rcar: Add gen2 device tree support
PCI: rcar: Add R-Car PCIe device tree bindings
PCI: rcar: Add MSI support for PCIe
PCI: rcar: Add Renesas R-Car PCIe driver
PCI: rcar: Use new OF interrupt mapping when possible
* pci/amd-numa:
x86/PCI: Clean up and mark early_root_info_init() as deprecated
x86/PCI: Work around AMD Fam15h BIOSes that fail to provide _PXM
x86/PCI: Warn if we have to "guess" host bridge node information
|
| | | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | | |
Add device tree probing support to the 'pci-rcar-gen2' driver.
[Sergei: numerous fixes/cleanups/additions]
[bhelgaas: whitespace fix]
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Arnd Bergmann <arnd@arndb.de>
|
| | | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | | |
Add MSI support to the R-Car PCIe driver.
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
|
| | | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | | |
This PCIe Host driver currently does not support MSI, so cards fall back to
INTx interrupts.
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
|
| | | | |/ / / / / / / /
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | | |
Use new OF interrupt mapping (of_irq_parse_and_map_pci()) when possible.
This is the recommended method of doing the IRQ mapping. For old
devicetrees we fall back to the previous practice.
This allows interrupts to be remapped across bridges.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
|
| | | |/ / / / / / / /
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | | |
The site-specific OOM messages are unnecessary, because they duplicate the
MM subsystem generic OOM message.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | | | | | | | |
| | | \ \ \ \ \ \ \ \ | |
| | | \ \ \ \ \ \ \ \ | |
| | | \ \ \ \ \ \ \ \ | |
| | | \ \ \ \ \ \ \ \ | |
| | | \ \ \ \ \ \ \ \ | |
| | | \ \ \ \ \ \ \ \ | |
| | | \ \ \ \ \ \ \ \ | |
| | |\ \ \ \ \ \ \ \ \ \ \ \ \
| | | |_|_|_|/ / / / / / / /
| | |/| | | | | / / / / / /
| | | | |_|_|_|/ / / / / /
| | | |/| | | | / / / / /
| | | | | | |_|/ / / / /
| | | | | |/| | / / / /
| | | | | | | |/ / / /
| | | | | | |/| | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | | |
'pci/resource' into next
* dma-api:
iommu/exynos: Remove unnecessary "&" from function pointers
DMA-API: Update dma_pool_create ()and dma_pool_alloc() descriptions
DMA-API: Fix duplicated word in DMA-API-HOWTO.txt
DMA-API: Capitalize "CPU" consistently
sh/PCI: Pass GAPSPCI_DMA_BASE CPU & bus address to dma_declare_coherent_memory()
DMA-API: Change dma_declare_coherent_memory() CPU address to phys_addr_t
DMA-API: Clarify physical/bus address distinction
* pci/virtualization:
PCI: Mark RTL8110SC INTx masking as broken
* pci/msi:
PCI/MSI: Remove pci_enable_msi_block()
* pci/misc:
PCI: Remove pcibios_add_platform_entries()
s390/pci: use pdev->dev.groups for attribute creation
PCI: Move Open Firmware devspec attribute to PCI common code
* pci/resource:
PCI: Add resource allocation comments
PCI: Simplify __pci_assign_resource() coding style
PCI: Change pbus_size_mem() return values to be more conventional
PCI: Restrict 64-bit prefetchable bridge windows to 64-bit resources
PCI: Support BAR sizes up to 8GB
resources: Clarify sanity check message
PCI: Don't add disabled subtractive decode bus resources
PCI: Don't print anything while decoding is disabled
PCI: Don't set BAR to zero if dma_addr_t is too small
PCI: Don't convert BAR address to resource if dma_addr_t is too small
PCI: Reject BAR above 4GB if dma_addr_t is too small
PCI: Fail safely if we can't handle BARs larger than 4GB
x86/gart: Tidy messages and add bridge device info
x86/gart: Replace printk() with pr_info()
x86/PCI: Move pcibios_assign_resources() annotation to definition
x86/PCI: Mark ATI SBx00 HPET BAR as IORESOURCE_PCI_FIXED
x86/PCI: Don't try to move IORESOURCE_PCI_FIXED resources
x86/PCI: Fix Broadcom CNB20LE unintended sign extension
|
| | | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | | |
Add comments in the code to match the allocation strategy of 7c671426dfc3
("PCI: Restrict 64-bit prefetchable bridge windows to 64-bit resources").
No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | | |
If an allocation succeeds, we can return success immediately. Then we
don't have to test for success in the subsequent code.
No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | | |
pbus_size_mem() previously returned 0 for failure and 1 for success.
Change it to return -ENOSPC for failure and 0 for success.
No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | | |
This patch changes the way we handle 64-bit prefetchable bridge windows to
make it more likely that we can assign space to all devices.
Previously we put all prefetchable resources in the prefetchable bridge
window. If any of those resources was 32-bit only, we restricted the
window to be below 4GB.
After this patch, we only put 64-bit prefetchable resources in a 64-bit
prefetchable window. We put all 32-bit prefetchable resources in the
non-prefetchable window, even if there are no 64-bit prefetchable
resources.
With the previous approach, if there was a 32-bit prefetchable resource
behind a bridge, we forced the bridge's prefetchable window below 4GB,
which meant that even if there was plenty of space above 4GB available, we
couldn't use it, and assignment of large 64-bit resources could fail, as
in the bugzilla below.
The new strategy is:
1) If the prefetchable window is 64 bits wide, we put only 64-bit
prefetchable resources in it. Any 32-bit prefetchable resources go in
the non-prefetchable window.
2) If the prefetchable window is 32 bits wide, we put both 32- and 64-bit
prefetchable resources in it.
3) If there is no prefetchable window, all MMIO resources go in the
non-prefetchable window.
This reduces performance for 32-bit prefetchable resources below a bridge
with a 64-bit prefetchable window. We previously assigned prefetchable
space, but now we'll assign non-prefetchable space. This is the case even
if there are no 64-bit prefetchable resources, or if they would all fit
below 4GB. In those cases, the old strategy would work and would have
better performance.
[bhelgaas: write changelog, add bugzilla link, fold in mem64_mask removal]
Link: https://bugzilla.kernel.org/show_bug.cgi?id=74151
Tested-by: Guo Chao <yan@linux.vnet.ibm.com>
Tested-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | | |
This is needed for some of the Xeon Phi type systems.
[bhelgaas: added Nikhil, use ARRAY_SIZE() to connect with decl, folded in
Kevin's "order < 0" fix to ARRAY_SIZE() usage]
Signed-off-by: Nikhil P Rao <nikhil.rao@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | | |
For a subtractive decode bridge, we previously added and printed all
resources of the primary bus, even if they were not valid. In the example
below, the bridge 00:1c.3 has no windows enabled, so there are no valid
resources on bus 02. But since 02:00.0 is subtractive decode bridge, we
add and print all those invalid resources, which don't really make sense:
pci 0000:00:1c.3: PCI bridge to [bus 02-03]
pci 0000:02:00.0: PCI bridge to [bus 03] (subtractive decode)
pci 0000:02:00.0: bridge window [??? 0x00000000 flags 0x0] (subtractive decode)
Add and print the subtractively-decoded resources only if they are valid.
There's an example in the dmesg log attached to the bugzilla below (but
this patch doesn't fix the bug reported there).
Link: https://bugzilla.kernel.org/show_bug.cgi?id=73141
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | | |
If the console is a PCI device, and we try to print to it while its
decoding is disabled, the system will hang. This particular printk hasn't
caused a problem yet, but it could, so this fixes it.
See also 0ff9514b579b ("PCI: Don't print anything while decoding is
disabled").
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | | |
If a BAR is above 4GB and our dma_addr_t is too small, don't clear the BAR
to zero: that doesn't disable the BAR, and it makes it more likely that the
BAR will conflict with things if we turn on the memory enable bit (as we
will at "out:" if the device was already enabled at the handoff).
We should also print the BAR info and its original size so we can follow
the process when we try to assign space to it.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | | |
If dma_addr_t is too small to represent the BAR value,
pcibios_bus_to_resource() will fail, so just remember the BAR size directly
in the resource. The resource is already marked UNSET, so we know the
address isn't valid anyway.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | | |
We can only handle BARs above 4GB if dma_addr_t (not resource_size_t) is 64
bits wide. If we have a 64-bit resource_size_t and a 32-bit dma_addr_t,
we can't deal with BARs above 4GB.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | |_|_|/ / / / /
| | |/| | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | | |
We can only handle BARs larger than 4GB if both dma_addr_t and
resource_size_t are 64 bits wide. If dma_addr_t is 32 bits, we can't
represent all the bus addresses, and if resource_size_t is 32 bits, we
can't represent all the CPU addresses.
Previously we cleared res->flags (at "fail:") for resources that were too
large. That means we think the BAR doesn't exist at all, which in turn
means that we could enable the device even though we can't keep track of
where the BAR is and we can't make sure it doesn't overlap something else.
This preserves the type flags (MEM/IO) so we can keep from enabling the
device.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | | |
Remove pcibios_add_platform_entries(). Architecture-specific attributes
can be achieved by setting pdev->dev.groups.
Link: https://lkml.kernel.org/r/alpine.LFD.2.11.1404141101500.1529@denkbrett
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| | | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | | |
Move the devspec OF attribute to PCI common code's set of device attributes
since it's not architecture dependent. As a side effect microblaze and
powerpc no longer need to use pcibios_add_platform_entries().
[bhelgaas: fold in #include for compile error]
Link: https://lkml.kernel.org/r/alpine.LFD.2.11.1404141101500.1529@denkbrett
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
| | | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | | |
There are no users of pci_enable_msi_block() function left. Obsolete it in
favor of pci_enable_msi_range() and pci_enable_msi_exact() functions.
Previously, we called arch_setup_msi_irqs() once, requesting the same
vector count we passed to arch_msi_check_device(). Now we may call it
several times: if it returns failure, we may retry and request fewer
vectors.
We don't keep track of the vector count we initially passed to
arch_msi_check_device(). We only keep track of the number of vectors
successfully set up by arch_setup_msi_irqs(), and this is what we use to
clean things up when disabling MSI. Therefore, we assume that
arch_msi_check_device() does nothing that will have to be cleaned up later.
[bhelgaas: changelog]
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | | |
INTx masking does not work on this device. To see this, configure the
network device UP on an active network, note that the interrupt count
continues to increment for the device in /proc/interrupts. Use setpci to
set the PCI_COMMAND_INTX_DISABLE bit in the PCI_COMMAND register. As
expected, the interrupt count ceases to increment. However, reading the
PCI_STATUS_INTERRUPT bit of the PCI_STATUS register does not indicate that
interrupts are pending and clearing PCI_COMMAND_INTX_DISABLE in the
PCI_COMMAND register does not allow the device to continue operation.
This does not affect operation of the host r8169 driver, but it does
prevent the device from being functional when assigned to a VM, such as
with QEMU and VFIO. The guest driver successfully probes the device, but
there is no traffic. Mark INTx masking as broken, allowing the more
restrictive APIC masking to be used instead.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | | | | | | | |
| | | \ \ \ \ \ \ \ \ | |
| | | \ \ \ \ \ \ \ \ | |
| | | \ \ \ \ \ \ \ \ | |
| | | \ \ \ \ \ \ \ \ | |
| | | \ \ \ \ \ \ \ \ | |
| | |\ \ \ \ \ \ \ \ \ \ \ \
| | |_|_|_|/ / / / / / / /
| |/| | | | / / / / / / /
| | | | | |/ / / / / / /
| | | | |/| / / / / / /
| | | | |_|/ / / / / /
| | | |/| | / / / / /
| | | | | |/ / / / /
| | | |_|_| / / / /
| | |/| | | / / /
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | | |
into next
* pci/hotplug:
PCI: rphahp: Fix endianess issues
PCI: Allow hotplug service drivers to operate in polling mode
PCI: pciehp: Acknowledge spurious "cmd completed" event
PCI: pciehp: Use PCI_EXP_SLTCAP_PSN define
PCI: hotplug: Remove unnecessary "dev->bus" test
* pci/msi:
GenWQE: Use pci_enable_msi_exact() instead of pci_enable_msi_block()
PCI/MSI: Simplify populate_msi_sysfs()
PCI/portdrv: Use pci_enable_msix_exact() instead of pci_enable_msix()
* pci/virtualization:
PCI: Add Patsburg (X79) to Intel PCH root port ACS quirk
* pci/misc:
PCI: Fix use of uninitialized MPS value
PCI: Remove dead code
MAINTAINERS: Add arch/x86/kernel/quirks.c to PCI file patterns
PCI: Remove unnecessary __ref annotations
PCI: Fail new_id for vendor/device values already built into driver
PCI: Add new ID for Intel GPU "spurious interrupt" quirk
PCI: Update my email address
PCI: Fix incorrect vgaarb conditional in WARN_ON()
PCI: Use designated initialization in PCI_VDEVICE
PCI: Remove old serial device IDs
PCI: Remove unnecessary includes of <linux/init.h>
powerpc/PCI: Fix NULL dereference in sys_pciconfig_iobase() list traversal
|
| | | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | | |
If "pcie_bus_config == PCIE_BUS_PERFORMANCE", we don't initialize "smpss",
so we pass a pointer to garbage into pcie_bus_configure_set(), where we
compute "mps" based on the garbage. We then pass the garbage "mps" to
pcie_write_mps(), which ignores it in the PCIE_BUS_PERFORMANCE case.
Coverity isn't smart enough to deduce that we ignore the garbage (it's a
lot to expect from a human, too), so initialize "smpss" to a safe value in
all cases.
Found by Coverity (CID 146454).
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | | |
"pdev" can never be NULL here, so remove the test.
Found by Coverity (CID 744313).
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | | |
Some PCI functions used to be marked __devinit. When CONFIG_HOTPLUG was
not set, these functions were discarded after boot. A few callers of these
__devinit functions were marked __ref to indicate that they could safely
call the __devinit functions even though the callers were not __devinit.
But CONFIG_HOTPLUG and __devinit are now gone, and the need for the __ref
annotations is also gone, so remove them. Relevant historical commits:
54b956b90360 Remove __dev* markings from init.h
a8e4b9c101ae PCI: add generic pci_hp_add_bridge()
0ab2b57f8db8 PCI: fix section mismatch warning in pci_scan_child_bus
451124a7cc6c PCI: fix 4x section mismatch warnings
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | | |
While using the sysfs new_id interface, the user can unintentionally feed
incorrect values if the driver static table has a matching entry. This is
possible since only the device and vendor fields are mandatory and the rest
are optional. As a result, store_new_id() will fill in default values that
are then passed on to the driver and can have unintended consequences.
As an example, consider the ixgbe driver and the 82599EB network card:
echo "8086 10fb" > /sys/bus/pci/drivers/ixgbe/new_id
This will pass a pci_device_id with driver_data = 0 to ixgbe_probe(), which
uses that zero to index a table of card operations. The zeroth entry of
the table does *not* correspond to the 82599 operations.
This change returns an error if the user attempts to add a dynid for a
vendor/device combination for which a static entry already exists.
However, if the user intentionally wants a different set of values, she
must provide all the 7 fields and that will be accepted.
[bhelgaas: drop KVM text since the problem isn't KVM-specific]
Signed-off-by: Bandan Das <bsd@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
|
| | | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | | |
After a CPU upgrade while keeping the same mainboard, we faced "spurious
interrupt" problems again.
It turned out that the new CPU also featured a new GPU with a different PCI
ID.
Add this PCI ID to the quirk table. Probably all other Intel GPU PCI IDs
are affected, too, but I don't want to add them without a test system.
See f67fd55fa96f ("PCI: Add quirk for still enabled interrupts on Intel
Sandy Bridge GPUs") for some history.
[bhelgaas: add f67fd55fa96f reference, stable tag]
Signed-off-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org # v3.4+
|
| | | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | | |
3448a19da479 "vgaarb: use bridges to control VGA routing where possible"
added the "flags & PCI_VGA_STATE_CHANGE_DECODES" condition to an existing
WARN_ON(), but used bitwise AND (&) instead of logical AND (&&), so the
condition is never true. Replace with logical AND.
Found by Coverity (CID 142811).
Fixes: 3448a19da479 "vgaarb: use bridges to control VGA routing where possible"
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: David Airlie <airlied@redhat.com>
|
| | | |_|_|/ / / /
| |/| | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | | |
None of these files are actually using any __init type directives and hence
don't need to include <linux/init.h>. Most are just a left over from
__devinit and __cpuinit removal, or simply due to code getting copied from
one driver to the next.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | |_|/ / / /
| |/| | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | | |
Intel has updated Red Hat bz1037684 to note that X79 PCH root ports also
provide isolation and the same ACS quirks apply. Some sources indicate
additional device IDs for X79, but this patch includes only the ones
specifically identified by Intel:
https://bugzilla.redhat.com/show_bug.cgi?id=1037684#c11
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Don Dugger <donald.d.dugger@intel.com>
|
| | | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | | |
Simplify populate_msi_sysfs() by
- Swapping the order of the two allocations and storing the
msi_dev_attr-derived pointer right after allocation, allowing the
cleanup code to pick things up without extra effort.
- Using kasprintf() instead of the kmalloc()/sprintf() pair.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| | | |/ / / /
| |/| | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | | |
As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers using these two
interfaces need to be updated to use the new pci_enable_msi_range() or
pci_enable_msi_exact() and pci_enable_msix_range() or
pci_enable_msix_exact() interfaces.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | | |
Numerical values stored in the device tree are encoded in Big Endian and
should be byte swapped when running in Little Endian.
The RPA hotplug module should convert those values as well.
Note that in rpaphp_get_drc_props(), the comparison between indexes[i+1]
and *index is done using the BE values (whatever is the current endianess).
This doesn't matter since we are checking for equality here. This way only
the returned value is byte swapped.
RPA also made RTAS calls which implies BE values to be used. According to
the patch done in RTAS (http://patchwork.ozlabs.org/patch/336865), no
additional conversion is required in RPA.
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | | |
Today the PCIe port bus driver disables the Hot-plug service if the port
device does not have the capability to generate interrupts. However, a
user must be able to use the "pciehp_poll_mode" parameter to use the pciehp
in polling method in such a case. Today it is not possible.
This patch allows a hotplug service driver to decide whether or not it
would like to continue in the absence of interrupts.
Signed-off-by: Rajat Jain <rajatxjain@gmail.com>
Signed-off-by: Rajat Jain <rajatjain@juniper.net>
Signed-off-by: Guenter Roeck <groeck@juniper.net>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | | |
In case of a spurious "cmd completed", pcie_write_cmd() does not clear it,
but yet expects more "cmd completed" events to be generated. This does not
happen because the previous (spurious) event has not been acknowledged.
Fix that.
Signed-off-by: Rajat Jain <rajatxjain@gmail.com>
Signed-off-by: Rajat Jain <rajatjain@juniper.net>
Signed-off-by: Guenter Roeck <groeck@juniper.net>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | | |
Use PCI_EXP_SLTCAP_PSN to make it easier to find code that uses the
Physical Slot Number field in the PCIe Slot Capabilities register.
No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| | |/ / / /
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | | |
Every pci_dev is on a valid pci_bus, so we don't need to test whether
dev->bus is NULL or not.
The only exceptions are a few legacy cases like alpha_core_agp_setup(),
parisc_agp_setup(), and megaraid's make_local_pdev(), where we allocate a
pci_dev with a NULL bus pointer. These are dubious uses (especially the
megaraid one), and I don't think it's possible to exercise this
pci_configure_slot() path with any of them.
Found by Coverity (CID 146446).
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
| |\ \ \ \ \
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | | |
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"These are fixes for an SHPCHP hotplug regression, a "wait for pending
transaction" problem (used in device reset paths), and an email
address update.
PCI device hotplug:
- Fix SHPCHP bus speed mismatch issue (Marcel Apfelbaum)
Miscellaneous:
- Fix pci_wait_for_pending_transaction() (Gavin Shan)
- Update email address (Ben Hutchings)"
* tag 'pci-v3.15-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: Wrong register used to check pending traffic
PCI: shpchp: Check bridge's secondary (not primary) bus speed
PCI: Update my email address
|
| | | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | | |
The incorrect register offset is passed to pci_wait_for_pending(), which is
caused by commit 157e876ffe ("PCI: Add pci_wait_for_pending() (refactor
pci_wait_for_pending_transaction())").
Fixes: 157e876ffe ("PCI: Add pci_wait_for_pending() (refactor pci_wait_for_pending_transaction())
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Alex Williamson <alex.williamson@gmail.com>
CC: stable@vger.kernel.org # v3.14+
|
| | | |_|/ /
| |/| | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | | |
When a new device is added below a hotplug bridge, the bridge's secondary
bus speed and the device's bus speed must match. The shpchp driver
previously checked the bridge's *primary* bus speed, not the secondary bus
speed.
This caused hot-add errors like:
shpchp 0000:00:03.0: Speed of bus ff and adapter 0 mismatch
Check the secondary bus speed instead.
[bhelgaas: changelog]
Link: https://bugzilla.kernel.org/show_bug.cgi?id=75251
Fixes: 3749c51ac6c1 ("PCI: Make current and maximum bus speeds part of the PCI core")
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
CC: stable@vger.kernel.org # v2.6.34+
|
| |\ \ \ \ \
| |/ / / /
|/| | | /
| | |_|/
| |/| |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | | |
into fixes
From Jason Cooper:
mvebu drivers (mbus and pci) fixes for v3.15
- pci
- fix off-by-one for mbus window size
- split BARs into multiple mbus windows when needed
- mbus
- avoid setting undefined window size
- allow several windows with the same target/attr
* tag 'mvebu-mbus_pci-fixes-3.15' of git://git.infradead.org/linux-mvebu:
PCI: mvebu: split PCIe BARs into multiple MBus windows when needed
bus: mvebu-mbus: allow several windows with the same target/attribute
bus: mvebu-mbus: Avoid setting an undefined window size
PCI: mvebu: fix off-by-one in the computed size of the mbus windows
Signed-off-by: Olof Johansson <olof@lixom.net>
|
| | | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | | |
MBus windows are used on Marvell platforms to map certain peripherals
in the physical address space. In the PCIe context, MBus windows are
needed to map PCIe I/O and memory regions in the physical address.
However, those MBus windows can only have power of two sizes, while
PCIe BAR do not necessarily guarantee this. For this reason, the
current pci-mvebu breaks on platforms where PCIe devices have BARs
that don't sum up to a power of two size at the emulated bridge level.
This commit fixes this by allowing the pci-mvebu driver to create
multiple contiguous MBus windows (each having a power of two size) to
cover a given PCIe BAR.
To achieve this, two functions are added: mvebu_pcie_add_windows() and
mvebu_pcie_del_windows() to respectively add and remove all the MBus
windows that are needed to map the provided PCIe region base and
size. The emulated PCI bridge code now calls those functions, instead
of directly calling the mvebu-mbus driver functions.
Fixes: 45361a4fe446 ('pci: PCIe driver for Marvell Armada 370/XP systems')
Cc: <stable@vger.kernel.org> # v3.11+
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1397823593-1932-8-git-send-email-thomas.petazzoni@free-electrons.com
Tested-by: Neil Greatorex <neil@fatboyfat.co.uk>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
|
| | |/ /
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | | |
mvebu_pcie_handle_membase_change() and
mvebu_pcie_handle_iobase_change() do not correctly compute the window
size. PCI uses an inclusive start/end address pair, which requires a
+1 when converting to size.
This only worked because a bug in the mbus driver allowed it to
silently accept and round up bogus sizes.
Fix this by adding one to the computed size.
Fixes: 45361a4fe446 ('PCIe driver for Marvell Armada 370/XP systems')
Cc: <stable@vger.kernel.org> # v3.11+
Signed-off-by: Willy Tarreau <w@1wt.eu>
Reviewed-By: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1397823593-1932-5-git-send-email-thomas.petazzoni@free-electrons.com
Tested-by: Neil Greatorex <neil@fatboyfat.co.uk>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
|
| | | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | | |
Use new OF interrupt mapping (of_irq_parse_and_map_pci()) when possible.
This is the recommended method of doing the IRQ mapping. For old
devicetrees we fall back to the previous practice.
This allows interrupts to be remapped across bridges.
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
|
| | | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | | |
Use new OF interrupt mapping (of_irq_parse_and_map_pci()) when possible.
This is the recommended method of doing the IRQ mapping. For old
devicetrees we fall back to the previous practice.
This allows interrupts to be remapped across bridges.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
|
| | | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | | |
Use new OF interrupt mapping (of_irq_parse_and_map_pci()) when possible.
This is the recommended method of doing the IRQ mapping. For old
devicetrees we fall back to the previous practice.
This makes INTB, INTC, and INTD work on i.MX.
Tested-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jingoo Han <jg1.han@samsung.com>
|
| | | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | | |
This patch corrects iATU programming for cfg1, io and mem viewport. Enable
ATU only after configuring it.
Signed-off-by: Mohit Kumar <mohit.kumar@st.com>
Signed-off-by: Ajay Khandelwal <ajay.khandelwal@st.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Cc: stable@vger.kernel.org
|
| |/ /
| |
| |
| |
| |
| |
| |
| | |
Corrects comment for setting number of lanes.
Signed-off-by: Mohit Kumar <mohit.kumar@st.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
|
| |\ \
| |/
|/|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull module updates from Rusty Russell:
"Nothing major: the stricter permissions checking for sysfs broke a
staging driver; fix included. Greg KH said he'd take the patch but
hadn't as the merge window opened, so it's included here to avoid
breaking build"
* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
staging: fix up speakup kobject mode
Use 'E' instead of 'X' for unsigned module taint flag.
VERIFY_OCTAL_PERMISSIONS: stricter checking for sysfs perms.
kallsyms: fix percpu vars on x86-64 with relocation.
kallsyms: generalize address range checking
module: LLVMLinux: Remove unused function warning from __param_check macro
Fix: module signature vs tracepoints: add new TAINT_UNSIGNED_MODULE
module: remove MODULE_GENERIC_TABLE
module: allow multiple calls to MODULE_DEVICE_TABLE() per module
module: use pr_cont
|
