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* pci/dt-resources:
PCI: Make of_irq_parse_pci() static
powerpc/pci: Use of_irq_parse_and_map_pci() helper
PCI: Move OF-related PCI functions into PCI core
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* pci/dpc:
PCI/DPC: Reformat DPC register definitions
PCI/DPC: Add and use DPC Status register field definitions
PCI/DPC: Squash dpc_rp_pio_get_info() into dpc_process_rp_pio_error()
PCI/DPC: Remove unnecessary RP PIO register structs
PCI/DPC: Push dpc->rp_pio_status assignment into dpc_rp_pio_get_info()
PCI/DPC: Squash dpc_rp_pio_print_error() into dpc_rp_pio_get_info()
PCI/DPC: Make RP PIO log size check more generic
PCI/DPC: Rename local "status" to "dpc_status"
PCI/DPC: Squash dpc_rp_pio_print_tlp_header() into dpc_rp_pio_print_error()
PCI/DPC: Process RP PIO details only if RP PIO extensions supported
PCI/DPC: Read RP PIO Log Size once at probe
PCI/DPC: Rename struct dpc_dev.rp to rp_extensions
PCI/DPC: Add local variable for DPC capability offset
PCI/DPC: Rename interrupt_event_handler() to dpc_work()
PCI/DPC: Fix interrupt message number print
PCI/DPC: Enable DPC only if AER is available
PCI/DPC: Fix shared interrupt handling
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* pci/dma:
PCI: Remove NULL device handling from PCI DMA API
net: tsi108: Use DMA API properly
media: ttusb-dec: Remove pci_zalloc_coherent() abuse
media: ttusb-budget: Remove pci_zalloc_coherent() abuse
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* pci/deprecate-get-bus-and-slot:
video: fbdev: riva: deprecate pci_get_bus_and_slot()
video: fbdev: nvidia: deprecate pci_get_bus_and_slot()
video: fbdev: intelfb: deprecate pci_get_bus_and_slot()
openprom: Deprecate pci_get_bus_and_slot()
xen/pcifront: Deprecate pci_get_bus_and_slot()
PCI: Deprecate pci_get_bus_and_slot()
PCI: ibmphp: Deprecate pci_get_bus_and_slot()
PCI: cpqhp: Deprecate pci_get_bus_and_slot()
pch_gbe: Deprecate pci_get_bus_and_slot()
bnx2x: Deprecate pci_get_bus_and_slot()
powerpc/via-pmu: Deprecate pci_get_bus_and_slot()
iommu/amd: Deprecate pci_get_bus_and_slot()
sl82c105: deprecate pci_get_bus_and_slot()
drm/nouveau: deprecate pci_get_bus_and_slot()
drm/gma500: Deprecate pci_get_bus_and_slot()
ibft: Deprecate pci_get_bus_and_slot()
edd: Deprecate pci_get_bus_and_slot()
agp: sworks: Deprecate pci_get_bus_and_slot()
agp: nvidia: Deprecate pci_get_bus_and_slot()
ata: Deprecate pci_get_bus_and_slot()
x86/PCI: Deprecate pci_get_bus_and_slot()
powerpc/PCI: Deprecate pci_get_bus_and_slot()
alpha/PCI: Deprecate pci_get_bus_and_slot()
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* pci/aspm:
PCI/ASPM: Unexport internal ASPM interfaces
PCI/ASPM: Enable Latency Tolerance Reporting when supported
PCI/ASPM: Calculate LTR_L1.2_THRESHOLD from device characteristics
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* pci/aer:
PCI/AER: Return error if AER is not supported
PCI/AER: Skip recovery callbacks for correctable errors from ACPI APEI
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Reformat DPC register definitions to follow the convention that register
field masks indicate the register width, e.g., a field of a 16-bit register
uses a mask of 4 hex digits, with leading zeros included as needed.
No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
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Add definitions for DPC Status register fields and use them in the code.
No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
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dpc_process_rp_pio_error() only calls dpc_rp_pio_get_info(), so squash them
together. No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
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We read and immediately print the RP PIO log registers. We don't save
them, so there's no need to define structs for them. Remove the structs
and read the registers into local variables instead. No functional change
intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
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Move the dpc->rp_pio_status assignment into dpc_rp_pio_get_info() since
that's where we read rp_pio->status anway. No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
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Separating dpc_rp_pio_print_error() doesn't really provide any useful
abstraction, so squash it into its caller, dpc_rp_pio_get_info(). No
functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
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In dpc_probe(), we set dpc->rp_log_size to zero if we think the hardware
reports an invalid size. In this case, we could have dpc->rp_extensions
set but dpc->rp_log_size == 0, and we should print the basic RP PIO
registers but not the variable-size portion. We already checked for
dpc->rp_log_size < 4 above, so this patch is just for consistency of style.
No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
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In dpc_rp_pio_get_info() rename the local "status" variable to
"dpc_status". This is to make room for another variable named "status" in
a subsequent patch. No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
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Separating dpc_rp_pio_print_tlp_header() doesn't really provide any useful
abstraction, so squash it into its caller, dpc_rp_pio_print_error(). No
functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
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The RP PIO registers (status, mask, severity, etc) are only implemented if
the "RP Extensions for DPC" bit is set in the DPC Capabilities register.
Previously we called dpc_process_rp_pio_error(), which reads and decodes
those RP PIO registers, whenever the DPC Status register indicated an "RP
PIO error" (Trigger Reason == 3 and Trigger Reason Extension == 0).
It does seem reasonable to assume that DPC Status would only indicate an RP
PIO error if the RP extensions are supported, but PCIe r4.0, sec 7.9.15.4,
is actually not explicit about that: it does not say "Trigger Reason
Extension == 0 is valid only for Root Ports that support RP Extensions for
DPC."
Check whether the RP Extensions for DPC are supported before trying to read
the RP PIO registers.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
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The RP PIO Log Size is a read-only field in the DPC Capability, so it is
constant and known at probe-time, but previously we read it every time we
processed an RP PIO error.
Read it once in dpc_probe() (if the RP Extensions for DPC are supported)
and remember the size in struct dpc_dev. No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
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"rp" is ambiguous: it might mean "this DPC device is a Root Port." But in
fact, it means "this DPC device is a Root Port *and* it supports a set of
DPC Extensions."
Rename "rp" to "rp_extensions" to make this more clear. No functional
change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
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Add a local variable for DPC capability offset and replace repeated use of
"dpc->cap_pos" with simply "cap". No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
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Rename interrupt_event_handler() to dpc_work() so there's more useful
information in stack traces and similar situations. No functional change
intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
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The interrupt message number is the first 5 bits, but the driver was
masking only the first 4 bits. Fix that by using the existing
define.
Signed-off-by: Keith Busch <keith.busch@intel.com>
[bhelgaas: remove reformatting (done by another patch)]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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The "Determination of DPC Control" implementation note in PCIe r4.0, sec
6.1.10, recommends the operating system always link DPC control to the
control of AER, as the two functionalities are strongly connected.
To avoid conflicts over whether platform firmware or the OS controls DPC,
enable DPC only if AER is enabled in the OS, and the device's error
handling does not have firmware-first AER handling.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
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Now that the DT PCI code is merged into drivers/pci, of_irq_parse_pci() can
be static.
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Frank Rowand <frowand.list@gmail.com>
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Historically some ISA drivers used the old PCI DMA API with a NULL pdev
argument, but these days this isn't used and not too useful due to the
per-device DMA ops, so remove it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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We need to pass a struct device to the DMA API, even if some architectures
still support that for legacy reasons, and should not mix it with the old
PCI DMA API.
Note that the driver also seems to never actually unmap its DMA mappings,
but to fix that we'll need someone more familar with the driver.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Switch to a plain kzalloc() instead of pci_zalloc_coherent() to allocate
memory for the USB DMA.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Switch to a plain kzalloc() instead of pci_zalloc_coherent() to allocate
memory for the USB DMA.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Instead of calling both of_irq_parse_pci() and irq_create_of_mapping(),
call of_irq_parse_and_map_pci(), which does the same thing. This will allow
making of_irq_parse_pci() a private, static function.
This changes the logic slightly in that the fallback path will also be
taken if irq_create_of_mapping() fails internally.
Signed-off-by: Rob Herring <robh@kernel.org>
[bhelgaas: fold in virq init from Stephen Rothwell <sfr@canb.auug.org.au>]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
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Following what has been done for other subsystems, move the remaining PCI
related code out of drivers/of/ and into drivers/pci/of.c
With this, we can kill a few kconfig symbols.
Signed-off-by: Rob Herring <robh@kernel.org>
[bhelgaas: minor whitespace, comment cleanups]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Frank Rowand <frowand.list@gmail.com>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
struct riva_par has a pointer to struct pci_dev. Use the pci_dev member
to extract the domain information.
Change the function signature for CalcStateExt and RivaGetConfig to pass
in struct pci_dev in addition to RIVA_HW_INST so that code inside the
riva_hw.c can also calculate domain number and pass it to
pci_get_domain_bus_and_slot().
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
struct nvidia_par has a pointer to struct pci_dev. Use the pci_dev
member to extract the domain information and pass it to
pci_get_domain_bus_and_slot() function.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
Find the domain number from pdev.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
Hard-coding the domain as 0 since domain information is not available.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
Acked-by: David S. Miller <davem@davemloft.net>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Use pci_get_domain_bus_and_slot() with a domain number of 0 where we can't
extract the domain number. Other places, use the actual domain number from
the device.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
Reviewed-by: Juergen Gross <jgross@suse.com>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
When we have a pci_dev, extract the domain number from it.
The config access syscalls don't allow the user to supply a domain number,
so they only work on devices in domain 0, so we can just hard-code that.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
[bhelgaas: squash quirk & syscall patches together]
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
Hard-coding the domain parameter as 0 since the code doesn't seem to be
ready for multiple domains.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
Hard-coding the domain number as 0. The code doesn't seem to be ready
for multiple domains.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
Use the domain information from pdev while calling into
pci_get_domain_bus_and_slot() function.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
Acked-by: David S. Miller <davem@davemloft.net>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
Introduce bnx2x_vf_domain() function to extract the domain information
and save it to VF specific data structure.
Use the saved domain value while calling pci_get_domain_bus_and_slot().
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
Acked-by: David S. Miller <davem@davemloft.net>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
Hard-code the domain number as 0 to match the previous behavior.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
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get_device_error_info() reads error information from registers in the AER
capability. If we call it for a device that has no AER capability, it
should return an error, but previously it returned success.
Return 0 (error) if the device doesn't have an AER capability.
Signed-off-by: Keith Busch <keith.busch@intel.com>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
Hard-code the domain number as 0 for the AMD IOMMU driver.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
Reviewed-by: Gary R Hook <gary.hook@amd.com>
Acked-by: Joerg Roedel <jroedel@suse.de>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
Replace pci_get_bus_and_slot() with pci_get_domain_bus_and_slot()
and extract the domain number from struct pci_dev.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
Acked-by: David S. Miller <davem@davemloft.net>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
Replace pci_get_bus_and_slot() with pci_get_domain_bus_and_slot()
and extract the domain number from
1. struct pci_dev
2. struct pci_dev through drm_device->pdev
3. struct pci_dev through fb->subdev->drm_device->pdev
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
Add domain parameter to CDV_MSG_READ32, CDV_MSG_WRITE32, MRST_MSG_READ32,
MRST_MSG_WRITE32, MDFLD_MSG_READ32, MDFLD_MSG_WRITE32.
Extract pci_dev from struct drm_device and use pdev to find the domain
number while calling pci_get_domain_bus_and_slot().
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
We don't search for the device in other domains than zero. This is because
on x86 platforms the BIOS executes only devices which are in domain 0.
Furthermore, the iBFT spec doesn't have a domain id field.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
Acked-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
Domain number is not available in struct edd_info. Hard-coding the domain
number as 0.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
Replace pci_get_bus_and_slot() with pci_get_domain_bus_and_slot()
and extract the domain number from struct pci_dev.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
Replace pci_get_bus_and_slot() with pci_get_domain_bus_and_slot()
and extract the domain number from struct pci_dev.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
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pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.
Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().
Use pci_get_domain_bus_and_slot() and extract the actual domain number
from the pdev passed in.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
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