02 Aug, 2016
19 commits
-
* pci/demodularize-hosts:
PCI: xgene: Make explicitly non-modular
PCI: thunder-pem: Make explicitly non-modular
PCI: thunder-ecam: Make explicitly non-modular
PCI: tegra: Make explicitly non-modular
PCI: rcar-gen2: Make explicitly non-modular
PCI: rcar: Make explicitly non-modular
PCI: mvebu: Make explicitly non-modular
PCI: layerscape: Make explicitly non-modular
PCI: keystone: Make explicitly non-modular
PCI: hisi: Make explicitly non-modular
PCI: generic: Make explicitly non-modular
PCI: designware-plat: Make it explicitly non-modular
PCI: artpec6: Make explicitly non-modular
PCI: armada8k: Make explicitly non-modular
PCI: artpec: Add PCI_MSI_IRQ_DOMAIN dependency
PCI: artpec: Add Axis ARTPEC-6 PCIe controller driver
PCI: Add DT binding for Axis ARTPEC-6 PCIe controller
PCI: generic: Select IRQ_DOMAIN* pci/host-request-windows:
PCI: versatile: Simplify host bridge window iteration
PCI: versatile: Request host bridge window resources with core function
PCI: tegra: Request host bridge window resources with core function
PCI: tegra: Remove top-level resource from hierarchy
PCI: rcar: Simplify host bridge window iteration
PCI: rcar: Request host bridge window resources with core function
PCI: rcar Gen2: Request host bridge window resources
PCI: rcar: Drop gen2 dummy I/O port region
ARM: Make PCI I/O space optional
PCI: mvebu: Request host bridge window resources with core function
PCI: generic: Simplify host bridge window iteration
PCI: generic: Request host bridge window resources with core function
PCI: altera: Simplify host bridge window iteration
PCI: altera: Request host bridge window resources with core function
PCI: xilinx-nwl: Use dev_printk() when possible
PCI: xilinx-nwl: Request host bridge window resources
PCI: xilinx-nwl: Free bridge resource list on failure
PCI: xilinx: Request host bridge window resources
PCI: xilinx: Free bridge resource list on failure
PCI: xgene: Request host bridge window resources
PCI: xgene: Free bridge resource list on failure
PCI: iproc: Request host bridge window resources
PCI: designware: Simplify host bridge window iteration
PCI: designware: Request host bridge window resources
PCI: designware: Free bridge resource list on failure
PCI: Add devm_request_pci_bus_resources() -
* pci/resource:
unicore32/PCI: Remove pci=firmware command line parameter handling
ARM/PCI: Remove arch-specific pcibios_enable_device()
ARM64/PCI: Remove arch-specific pcibios_enable_device()
MIPS/PCI: Claim bus resources on PCI_PROBE_ONLY set-ups
ARM/PCI: Claim bus resources on PCI_PROBE_ONLY set-ups
PCI: generic: Claim bus resources on PCI_PROBE_ONLY set-ups
PCI: Add generic pci_bus_claim_resources()
alx: Use pci_(request|release)_mem_regions
ethernet/intel: Use pci_(request|release)_mem_regions
GenWQE: Use pci_(request|release)_mem_regions
lpfc: Use pci_(request|release)_mem_regions
NVMe: Use pci_(request|release)_mem_regions
PCI: Add helpers to request/release memory and I/O regions
PCI: Extending pci=resource_alignment to specify device/vendor IDs
sparc/PCI: Implement pci_resource_to_user() with pcibios_resource_to_bus()
powerpc/pci: Implement pci_resource_to_user() with pcibios_resource_to_bus()
microblaze/PCI: Implement pci_resource_to_user() with pcibios_resource_to_bus()
PCI: Unify pci_resource_to_user() declarations
microblaze/PCI: Remove useless __pci_mmap_set_pgprot()
powerpc/pci: Remove __pci_mmap_set_pgprot()
PCI: Ignore write combining when mapping I/O port space -
…/pm' and 'pci/virtualization' into next
* pci/aspm:
PCI/ASPM: Remove redundant check of pcie_set_clkpm* pci/dpc:
PCI: Remove DPC tristate module option
PCI: Bind DPC to Root Ports as well as Downstream Ports
PCI: Fix whitespace in struct dpc_dev
PCI: Convert Downstream Port Containment driver to use devm_* functions* pci/hotplug:
PCI: Allow additional bus numbers for hotplug bridges* pci/misc:
PCI: Include <asm/dma.h> for isa_dma_bridge_buggy
PCI: Make bus_attr_resource_alignment static
MAINTAINERS: Add file patterns for PCI device tree bindings
PCI: Fix comment typo* pci/msi:
PCI/MSI: irqchip: Fix PCI_MSI dependencies* pci/pm:
PCI: pciehp: Ignore interrupts during D3cold
PCI: Document connection between pci_power_t and hardware PM capability
PCI: Add runtime PM support for PCIe ports
ACPI / hotplug / PCI: Runtime resume bridge before rescan
PCI: Power on bridges before scanning new devices
PCI: Put PCIe ports into D3 during suspend
PCI: Don't clear d3cold_allowed for PCIe ports
PCI / PM: Enforce type casting for pci_power_t* pci/virtualization:
PCI: Add ACS quirk for Solarflare SFC9220
PCI: Add DMA alias quirk for Adaptec 3805
PCI: Mark Atheros AR9485 and QCA9882 to avoid bus reset
PCI: Add function 1 DMA alias quirk for Marvell 88SE9182 -
* pci/arm64-acpi:
ARM64: PCI: Support ACPI-based PCI host controller
ARM64: PCI: Implement AML accessors for PCI_Config region
ARM64: PCI: ACPI support for legacy IRQs parsing and consolidation with DT code
ARM64: PCI: Add acpi_pci_bus_find_domain_nr()
PCI: Factor DT-specific pci_bus_find_domain_nr() code out
PCI: Refactor pci_bus_assign_domain_nr() for CONFIG_PCI_DOMAINS_GENERIC
PCI/ACPI: Add generic MCFG table handling
PCI/ACPI: Support I/O resources when parsing host bridge resources
PCI: Add pci_unmap_iospace() to unmap I/O resources
PCI: Add parent device field to ECAM struct pci_config_window
PCI: Move ecam.h to linux/include/pci-ecam.h -
This code is not being built as a module by anyone:
drivers/pci/host/Kconfig:config PCI_XGENE
drivers/pci/host/Kconfig: bool "X-Gene PCIe controller"Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(),
etc., so that when reading the driver there is no doubt it is builtin-only.
The information is preserved in comments at the top of the file.Replace module_platform_driver() with builtin_platform_driver(), which uses
the same init level priority, so init ordering is unchanged.[bhelgaas: changelog]
Signed-off-by: Paul Gortmaker
Signed-off-by: Bjorn Helgaas
CC: Tanmay Inamdar -
This code is not being built as a module by anyone:
drivers/pci/host/Kconfig:config PCI_HOST_THUNDER_PEM
drivers/pci/host/Kconfig: bool "Cavium Thunder PCIe controller to off-chip devices"Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(),
etc., so that when reading the driver there is no doubt it is builtin-only.
The information is preserved in comments at the top of the file.Replace module_platform_driver() with builtin_platform_driver(), which uses
the same init level priority, so init ordering is unchanged.Note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
[bhelgaas: changelog]
Signed-off-by: Paul Gortmaker
Signed-off-by: Bjorn Helgaas
CC: David Daney -
This code is not being built as a module by anyone:
drivers/pci/host/Kconfig:config PCI_HOST_THUNDER_ECAM
drivers/pci/host/Kconfig: bool "Cavium Thunder ECAM controller to on-chip devices on pass-1.x silicon"Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(),
etc., so that when reading the driver there is no doubt it is builtin-only.
The information is preserved in comments at the top of the file.Replace module_platform_driver() with builtin_platform_driver(), which uses
the same init level priority, so init ordering is unchanged.Note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
[bhelgaas: changelog]
Signed-off-by: Paul Gortmaker
Signed-off-by: Bjorn Helgaas
CC: David Daney -
This code is not being built as a module by anyone:
drivers/pci/host/Kconfig:config PCI_TEGRA
drivers/pci/host/Kconfig: bool "NVIDIA Tegra PCIe controller"Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(),
etc., so that when reading the driver there is no doubt it is builtin-only.
The information is preserved in comments at the top of the file.Replace module_platform_driver() with builtin_platform_driver(), which uses
the same init level priority, so init ordering is unchanged.Note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
[bhelgaas: changelog]
Signed-off-by: Paul Gortmaker
Signed-off-by: Bjorn Helgaas
CC: Thierry Reding
CC: Stephen Warren
CC: Alexandre Courbot
CC: linux-tegra@vger.kernel.org -
This code is not being built as a module by anyone:
drivers/pci/host/Kconfig:config PCI_RCAR_GEN2
drivers/pci/host/Kconfig: bool "Renesas R-Car Gen2 Internal PCI controller"Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(),
etc., so that when reading the driver there is no doubt it is builtin-only.
The information is preserved in comments at the top of the file.Replace module_platform_driver() with builtin_platform_driver(), which uses
the same init level priority, so init ordering is unchanged.Note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
[bhelgaas: changelog, remove "Module" from author comment]
Signed-off-by: Paul Gortmaker
Signed-off-by: Bjorn Helgaas
Acked-by: Simon Horman
Acked-by: Phil Edworthy
CC: Valentine Barshak -
This code is not being built as a module by anyone:
drivers/pci/host/Kconfig:config PCI_RCAR_GEN2_PCIE
drivers/pci/host/Kconfig: bool "Renesas R-Car PCIe controller"Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(),
etc., so that when reading the driver there is no doubt it is builtin-only.
The information is preserved in comments at the top of the file.Replace module_platform_driver() with builtin_platform_driver(), which uses
the same init level priority, so init ordering is unchanged.Note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
[bhelgaas: changelog, remove "Module" from author comment]
Signed-off-by: Paul Gortmaker
Signed-off-by: Bjorn Helgaas
Acked-by: Simon Horman
Acked-by: Phil Edworthy -
This code is not being built as a module by anyone:
drivers/pci/host/Kconfig:config PCI_MVEBU
drivers/pci/host/Kconfig: bool "Marvell EBU PCIe controller"Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(),
etc., so that when reading the driver there is no doubt it is builtin-only.
The information is preserved in comments at the top of the file.Replace module_platform_driver() with builtin_platform_driver(), which uses
the same init level priority, so init ordering is unchanged.Note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
[bhelgaas: changelog, remove "Module" from author comment]
Signed-off-by: Paul Gortmaker
Signed-off-by: Bjorn Helgaas
Reviewed-by: Thomas Petazzoni
CC: Jason Cooper -
This code is not being built as a module by anyone:
drivers/pci/host/Kconfig:config PCI_LAYERSCAPE
drivers/pci/host/Kconfig: bool "Freescale Layerscape PCIe controller"Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(),
etc., so that when reading the driver there is no doubt it is builtin-only.
The information is preserved in comments at the top of the file.Replace module_platform_driver() with builtin_platform_driver(), which uses
the same init level priority, so init ordering is unchanged.Note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
[bhelgaas: changelog]
Signed-off-by: Paul Gortmaker
Signed-off-by: Bjorn Helgaas
CC: Minghuan Lian
CC: Mingkai Hu
CC: Roy Zang -
This code is not being built as a module by anyone:
drivers/pci/host/Kconfig:config PCI_KEYSTONE
drivers/pci/host/Kconfig: bool "TI Keystone PCIe controller"Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(),
etc., so that when reading the driver there is no doubt it is builtin-only.
The information is preserved in comments at the top of the file.Replace module_platform_driver() with builtin_platform_driver(), which uses
the same init level priority, so init ordering is unchanged.Note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
[bhelgaas: changelog]
Signed-off-by: Paul Gortmaker
Signed-off-by: Bjorn Helgaas
Tested-By: Murali Karicheri -
This code is not being built as a module by anyone:
host/Kconfig:config PCI_HISI
host/Kconfig: bool "HiSilicon Hip05 and Hip06 SoCs PCIe controllers"Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(),
etc., so that when reading the driver there is no doubt it is builtin-only.
The information is preserved in comments at the top of the file.Replace module_platform_driver() with builtin_platform_driver(), which uses
the same init level priority, so init ordering is unchanged.Note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
[bhelgaas: changelog]
Signed-off-by: Paul Gortmaker
Signed-off-by: Bjorn Helgaas
CC: Zhou Wang
CC: Dacai Zhu
CC: Gabriele Paoloni -
This code is not being built as a module by anyone:
drivers/pci/host/Kconfig:config PCI_HOST_GENERIC
drivers/pci/host/Kconfig: bool "Generic PCI host controller"Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(),
etc., so that when reading the driver there is no doubt it is builtin-only.
The information is preserved in comments at the top of the file.Replace module_platform_driver() with builtin_platform_driver(), which uses
the same init level priority, so init ordering is unchanged.Note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
[bhelgaas: changelog]
Signed-off-by: Paul Gortmaker
Signed-off-by: Bjorn Helgaas
Acked-by: Will Deacon -
This code is not being built as a module by anyone:
drivers/pci/host/Kconfig:config PCIE_DW_PLAT
drivers/pci/host/Kconfig: bool "Platform bus based DesignWare PCIe Controller"Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(),
etc., so that when reading the driver there is no doubt it is builtin-only.
The information is preserved in comments at the top of the file.Replace module_platform_driver() with builtin_platform_driver(), which uses
the same init level priority, so init ordering is unchanged.Note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
[bhelgaas: changelog]
Signed-off-by: Paul Gortmaker
Signed-off-by: Bjorn Helgaas
Acked-by: Joao Pinto
CC: Jingoo Han
CC: Pratyush Anand -
This code is not being built as a module by anyone:
drivers/pci/host/Kconfig:config PCIE_ARTPEC6
drivers/pci/host/Kconfig: bool "Axis ARTPEC-6 PCIe controller"Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(),
etc., so that when reading the driver there is no doubt it is builtin-only.
The information is preserved in comments at the top of the file.Replace module_platform_driver() with builtin_platform_driver(), which uses
the same init level priority, so init ordering is unchanged.Note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
[bhelgaas: changelog, add "Author" comment]
Signed-off-by: Paul Gortmaker
Signed-off-by: Bjorn Helgaas
CC: Niklas Cassel
CC: Jesper Nilsson -
This code is not being built as a module by anyone:
drivers/pci/host/Kconfig:config PCIE_ARMADA_8K
drivers/pci/host/Kconfig: bool "Marvell Armada-8K PCIe controller"Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(),
etc., so that when reading the driver there is no doubt it is builtin-only.
The information is preserved in comments at the top of the file.Replace module_platform_driver() with builtin_platform_driver(), which uses
the same init level priority, so init ordering is unchanged.Note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
[bhelgaas: changelog]
Signed-off-by: Paul Gortmaker
Signed-off-by: Bjorn Helgaas
CC: Thomas Petazzoni -
* pci/host-artpec:
PCI: artpec: Add PCI_MSI_IRQ_DOMAIN dependency
PCI: artpec: Add Axis ARTPEC-6 PCIe controller driver
PCI: Add DT binding for Axis ARTPEC-6 PCIe controller* pci/host-generic:
PCI: generic: Select IRQ_DOMAIN
30 Jul, 2016
2 commits
-
The DesignWare PCIe driver requires MSI support, so we get a warning for
the artpec6 glue driver if that is not enabled:warning: (PCIE_ARTPEC6) selects PCIE_DW which has unmet direct dependencies (PCI && PCI_MSI_IRQ_DOMAIN)
Add the same dependency that all other such drivers have.
Signed-off-by: Arnd Bergmann
Signed-off-by: Bjorn Helgaas
Acked-by: Niklas Cassel -
The Solarflare SFC9220 apparently lacks an ACS capability, but does not
perform peer-to-peer between functions. Add a quirk so we know about this
isolation.[bhelgaas: changelog]
Signed-off-by: Edward Cree
Signed-off-by: Bjorn Helgaas
26 Jul, 2016
3 commits
-
A user may hot add a switch requiring more than one bus to enumerate. This
previously required a system reboot if BIOS did not sufficiently pad the
bus resource, which they frequently don't do.Add a kernel parameter so a user can specify the minimum number of bus
numbers to reserve for a hotplug bridge's subordinate buses so rebooting
won't be necessary.The default is 1, which is equivalent to previous behavior.
Signed-off-by: Keith Busch
Signed-off-by: Bjorn Helgaas -
Change the Downstream Port Containment config type from tristate to bool.
The driver doesn't automatically load based on any rules, so it needs to be
built-in in order to bind to devices it needs to drive.Signed-off-by: Keith Busch
Signed-off-by: Bjorn Helgaas -
PCIe port type values are not flags, so OR'ing them is not correct.
Previously the result was equivalent to PCIe Downstream Ports, so we were
missing binding to DPC-capable Root Ports.Change the type to 'any' so we can bind to both port types. While this
will cause the code to check Upstream Ports, the driver won't claim them
since they are not DPC-capable.Reported-by: Alexander Antonov
Signed-off-by: Keith Busch
Signed-off-by: Bjorn Helgaas
CC: Mika Westerberg
20 Jul, 2016
2 commits
-
Add a DMA alias quirk for the Adaptec 3805, just like the 3405 quirk added
in commit d3d2ab43ddae ("PCI: Add DMA alias quirk for Adaptec 3405").Link: https://www.redhat.com/archives/vfio-users/2016-July/msg00046.html
Signed-off-by: Alex Williamson
Signed-off-by: Bjorn Helgaas -
At least on arm, does not get included when building
drivers/pci/pci.o. This causes the following build warning which can be
fixed by including :drivers/pci/pci.c:37:5: warning: symbol 'isa_dma_bridge_buggy' was not declared. Should it be static?
Signed-off-by: Ben Dooks
Signed-off-by: Bjorn Helgaas
25 Jun, 2016
8 commits
-
The switch is the only statement in the resource_list_for_each_entry()
loop, so remove unnecessary "continue" statements in the switch. Simplify
checking for the required non-prefetchable memory aperture.No functional change intended.
Signed-off-by: Bjorn Helgaas
-
Use devm_request_pci_bus_resources() to request host bridge window
resources instead of doing it by hand in the driver.No functional change intended.
Signed-off-by: Bjorn Helgaas
-
Use devm_request_pci_bus_resources() to request host bridge window
resources instead of doing it by hand in the driver.No functional change intended.
Signed-off-by: Bjorn Helgaas
-
41534e53786d ("PCI: tegra: Implement a proper resource hierarchy") did two
things:1) It added a top-level resource that encloses all resources declared in
the DT description, including registers and bridge apertures, and2) It requested the bridge apertures, which means the PCI core can track
the resources used by PCI devices below the bridge.The latter is necessary, but the former is questionable because there's no
guarantee that the bridge registers and the apertures are contiguous. In
this example:# cat /proc/iomem
00000000-3fffffff : /pcie-controller@00003000
00000000-00000fff : /pcie-controller@00003000/pci@1,0
00003000-000037ff : pads
00003800-000039ff : afi
10000000-1fffffff : csthe resource tree claims that [mem 0x00003a00-0x0fffffff] is consumed by
/pcie-controller@00003000, but it's not mentioned in the DT, and it might
actually be used by other devices.Remove the top-level resource so we don't claim more than the device
actually consumes.This reintroduces the problem that we can't match the resources, e.g.,
"pads", "afi", "cs", etc., to the DT device. I think this should be solved
by having the DT core request all resources of all devices in the DT (it
does not do that today). If a driver claims the device, it can request the
resources it uses. For example:# cat /proc/iomem
00000000-00000fff : /pcie-controller@00003000
00000000-00000fff : /pcie-controller@00003000/pci@1,0
00003000-000037ff : /pcie-controller@00003000
00003000-000037ff : pads
00003800-000039ff : /pcie-controller@00003000
00003800-000039ff : afi
10000000-1fffffff : /pcie-controller@00003000
10000000-1fffffff : cs
...Signed-off-by: Bjorn Helgaas
-
The switch is the only statement in the resource_list_for_each_entry()
loop, so remove unnecessary cases and "continue" statements in the switch.
Inline rcar_pcie_release_of_pci_ranges(), which is only called once.No functional change intended.
Signed-off-by: Bjorn Helgaas
-
Use devm_request_pci_bus_resources() to request host bridge window
resources instead of doing it by hand in the driver.No functional change intended.
Signed-off-by: Bjorn Helgaas
-
Request host bridge window resources so they appear in ioport_resource and
iomem_resource and are reflected in /proc/ioports and /proc/iomem.Tested-by: Geert Uytterhoeven
Signed-off-by: Bjorn Helgaas -
Previously we added a dummy I/O port region even though the R-Car
controller doesn't support PCI port I/O. This resulted in bogus root bus
resources like this:pci_bus 0000:00: root bus resource [io 0xee080000-0xee0810ff]
pci_bus 0000:00: root bus resource [mem 0xee080000-0xee0810ff]Drop the unused dummy I/O port region and set struct hw_pci.io_optional so
the ARM PCI code doesn't add a default one for us.Tested-by: Geert Uytterhoeven
Signed-off-by: Bjorn Helgaas
24 Jun, 2016
6 commits
-
Remove support for the "pci=firmware" command line parameter, which was
way to keep the kernel from changing any PCI BAR assignments. This was
copied from ARM, but is not actually needed on unicore32.The corresponding ARM support was removed by 903589ca7165 ("ARM: 8554/1:
kernel: pci: remove pci=firmware command line parameter handling").Signed-off-by: Bjorn Helgaas
-
On systems with PCI_PROBE_ONLY set, we rely on BAR assignments from
firmware. Previously we did not insert those resources into the resource
tree, so we had to skip pci_enable_resources() because it fails if
resources are not in the resource tree.Now that we *do* insert resources even when PCI_PROBE_ONLY is set, we no
longer need the ARM-specific pcibios_enable_device(). Remove it so we
use the generic version.[bhelgaas: changelog]
Signed-off-by: Lorenzo Pieralisi
Signed-off-by: Bjorn Helgaas
Acked-by: Will Deacon
CC: Arnd Bergmann
CC: Russell King -
On systems with PCI_PROBE_ONLY set, we rely on BAR assignments from
firmware. Previously we did not insert those resources into the resource
tree, so we had to skip pci_enable_resources() because it fails if
resources are not in the resource tree.Now that we *do* insert resources even when PCI_PROBE_ONLY is set, we no
longer need the ARM64-specific pcibios_enable_device(). Remove it so we
use the generic version.[bhelgaas: changelog]
Signed-off-by: Lorenzo Pieralisi
Signed-off-by: Bjorn Helgaas
Acked-by: Will Deacon
CC: Arnd Bergmann
CC: Catalin Marinas -
We claim PCI BAR and bridge window resources in pci_bus_assign_resources(),
but when PCI_PROBE_ONLY is set, we treat those resources as immutable and
don't call pci_bus_assign_resources(), so the resources aren't put in the
resource tree.When the resources aren't in the tree, they don't show up in /proc/iomem,
we can't detect conflicts, and we need special cases elsewhere for
PCI_PROBE_ONLY or resources without a parent pointer.Claim all PCI BAR and window resources in the PCI_PROBE_ONLY case.
If a PCI_PROBE_ONLY platform assigns conflicting resources, Linux can't fix
the conflicts. Previously we didn't notice the conflicts, but now we will,
which may expose new failures.Signed-off-by: Bjorn Helgaas
-
We claim PCI BAR and bridge window resources in pci_bus_assign_resources(),
but when PCI_PROBE_ONLY is set, we treat those resources as immutable and
don't call pci_bus_assign_resources(), so the resources aren't put in the
resource tree.When the resources aren't in the tree, they don't show up in /proc/iomem,
we can't detect conflicts, and we need special cases elsewhere for
PCI_PROBE_ONLY or resources without a parent pointer.Claim all PCI BAR and window resources in the PCI_PROBE_ONLY case.
If a PCI_PROBE_ONLY platform assigns conflicting resources, Linux can't fix
the conflicts. Previously we didn't notice the conflicts, but now we will,
which may expose new failures.[bhelgaas: changelog, add resource comment, remove size/assign comments]
Signed-off-by: Lorenzo Pieralisi
Signed-off-by: Bjorn Helgaas
CC: Russell King -
We claim PCI BAR and bridge window resources in pci_bus_assign_resources(),
but when PCI_PROBE_ONLY is set, we treat those resources as immutable and
don't call pci_bus_assign_resources(), so the resources aren't put in the
resource tree.When the resources aren't in the tree, they don't show up in /proc/iomem,
we can't detect conflicts, and we need special cases elsewhere for
PCI_PROBE_ONLY or resources without a parent pointer.Claim all PCI BAR and window resources in the PCI_PROBE_ONLY case.
If a PCI_PROBE_ONLY platform assigns conflicting resources, Linux can't fix
the conflicts. Previously we didn't notice the conflicts, but now we will,
which may expose new failures.[bhelgaas: changelog, summarize comment]
Signed-off-by: Lorenzo Pieralisi
Signed-off-by: Bjorn Helgaas
Acked-by: Will Deacon
CC: Arnd Bergmann
CC: David Daney
