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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"PCI changes for the v3.10 merge window:
PCI device hotplug
- Remove ACPI PCI subdrivers (Jiang Liu, Myron Stowe)
- Make acpiphp builtin only, not modular (Jiang Liu)
- Add acpiphp mutual exclusion (Jiang Liu)
Power management
- Skip "PME enabled/disabled" messages when not supported (Rafael
Wysocki)
- Fix fallback to PCI_D0 (Rafael Wysocki)
Miscellaneous
- Factor quirk_io_region (Yinghai Lu)
- Cache MSI capability offsets & cleanup (Gavin Shan, Bjorn Helgaas)
- Clean up EISA resource initialization and logging (Bjorn Helgaas)
- Fix prototype warnings (Andy Shevchenko, Bjorn Helgaas)
- MIPS: Initialize of_node before scanning bus (Gabor Juhos)
- Fix pcibios_get_phb_of_node() declaration "weak" annotation (Gabor
Juhos)
- Add MSI INTX_DISABLE quirks for AR8161/AR8162/etc (Xiong Huang)
- Fix aer_inject return values (Prarit Bhargava)
- Remove PME/ACPI dependency (Andrew Murray)
- Use shared PCI_BUS_NUM() and PCI_DEVID() (Shuah Khan)"
* tag 'pci-v3.10-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (63 commits)
vfio-pci: Use cached MSI/MSI-X capabilities
vfio-pci: Use PCI_MSIX_TABLE_BIR, not PCI_MSIX_FLAGS_BIRMASK
PCI: Remove "extern" from function declarations
PCI: Use PCI_MSIX_TABLE_BIR, not PCI_MSIX_FLAGS_BIRMASK
PCI: Drop msi_mask_reg() and remove drivers/pci/msi.h
PCI: Use msix_table_size() directly, drop multi_msix_capable()
PCI: Drop msix_table_offset_reg() and msix_pba_offset_reg() macros
PCI: Drop is_64bit_address() and is_mask_bit_support() macros
PCI: Drop msi_data_reg() macro
PCI: Drop msi_lower_address_reg() and msi_upper_address_reg() macros
PCI: Drop msi_control_reg() macro and use PCI_MSI_FLAGS directly
PCI: Use cached MSI/MSI-X offsets from dev, not from msi_desc
PCI: Clean up MSI/MSI-X capability #defines
PCI: Use cached MSI-X cap while enabling MSI-X
PCI: Use cached MSI cap while enabling MSI interrupts
PCI: Remove MSI/MSI-X cap check in pci_msi_check_device()
PCI: Cache MSI/MSI-X capability offsets in struct pci_dev
PCI: Use u8, not int, for PM capability offset
[SCSI] megaraid_sas: Use correct #define for MSI-X capability
PCI: Remove "extern" from function declarations
...
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Use dev_printk() when possible to make messages more useful.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Matthew reported kernels fail the pci_eisa probe and are later successful
with the virtual_eisa_root_init force probe without slot0.
The reason for that is: PNP probing is before pci_eisa_init gets called
as pci_eisa_init is called via pci_driver.
pnp 00:0f has 0xc80 - 0xc84 reserved.
[ 9.700409] pnp 00:0f: [io 0x0c80-0x0c84]
so eisa_probe will fail from pci_eisa_init
==>eisa_root_register
==>eisa_probe path.
as force_probe is not set in pci_eisa_root, it will bail early when
slot0 is not probed and initialized.
Try to use subsys_initcall_sync instead, and will keep following sequence:
pci_subsys_init
pci_eisa_init_early
pnpacpi_init/isapnp_init
After this patch EISA can be initialized properly, and PNP overlapping
resource will not be reserved.
[ 10.104434] system 00:0f: [io 0x0c80-0x0c84] could not be reserved
Reported-by: Matthew Whitehead <mwhitehe@redhat.com>
Tested-by: Matthew Whitehead <mwhitehe@redhat.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org
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Matthew found that 3.8.3 is having problems with an old (ancient)
PCI-to-EISA bridge, the Intel 82375. It worked with the 3.2 kernel.
He identified the 82375, but doesn't assign the struct resource *res
pointer inside the struct eisa_root_device, and panics.
pci_eisa_init() was using bus->resource[] directly instead of
pci_bus_resource_n(). The bus->resource[] array is a PCI-internal
implementation detail, and after commit 45ca9e97 (PCI: add helpers for
building PCI bus resource lists) and commit 0efd5aab (PCI: add struct
pci_host_bridge_window with CPU/bus address offset), bus->resource[] is not
used for PCI root buses any more.
The 82375 is a subtractive-decode PCI device, so handle it the same
way we handle PCI-PCI bridges in subtractive-decode mode in
pci_read_bridge_bases().
[bhelgaas: changelog]
Reported-by: Matthew Whitehead <mwhitehe@redhat.com>
Tested-by: Matthew Whitehead <mwhitehe@redhat.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org # v3.3+
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While `pci_eisa_driver' still refer `pci_eisa_init', the .probe() function
should not be called after init memory release, as pointed out by commit
74b9a297. The structure is still referenced in the drivers subsystem, and can
be accesseed through sysfs, so the modpost warning is a false positive. Mark
it as such.
In the same time, the warning referenced in 005bdad7b80 did only mention
`pci_eisa_driver', not `pci_eisa_pci_tbl', so remove its marking.
Broken-by: Arnaud Lacombe <lacombar@gmail.com> (in 005bdad7b80)
Reported-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fixes
WARNING: vmlinux.o(.data+0x15d3ac): Section mismatch in reference from the variable pci_eisa_driver to the function .init.text:pci_eisa_init()
The variable pci_eisa_driver references the function __init pci_eisa_init()
If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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In the near future, the driver core is going to not allow direct access
to the driver_data pointer in struct device. Instead, the functions
dev_get_drvdata() and dev_set_drvdata() should be used. These functions
have been around since the beginning, so are backwards compatible with
all older kernel versions.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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WARNING: drivers/built-in.o - Section mismatch: reference to .init.text:eisa_root_register from .text between 'pci_eisa_init' (at offset 0xabf670) and 'virtual_eisa_release'
AFAIK a PCI to EISA bridge isn't anything hotpluggable, so
pci_eisa_init() can become __init.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
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