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| author | Tomasz Nowicki <tn@semihalf.com> | 2016-06-10 21:55:13 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2016-06-10 18:27:59 -0500 |
| commit | 935c760ec8101413248da23b6df45f0a7a643c62 (patch) | |
| tree | eb8e54c07bbc7fecebcb7584ba01d9ebf27058cd /include/linux/pci.h | |
| parent | 0a70abb3806295e039f9b2df5321cc3f7c87f4d6 (diff) | |
| download | op-kernel-dev-935c760ec8101413248da23b6df45f0a7a643c62.zip op-kernel-dev-935c760ec8101413248da23b6df45f0a7a643c62.tar.gz | |
PCI/ACPI: Add generic MCFG table handling
On ACPI systems that support memory-mapped config space access, i.e., ECAM,
the PCI Firmware Specification says the OS can learn where the ECAM space
is from either:
- the static MCFG table (for non-hotpluggable bridges), or
- the _CBA method (for hotpluggable bridges)
The current MCFG table handling code cannot be easily generalized owing to
x86-specific quirks, which makes it hard to reuse on other architectures.
Implement generic MCFG handling from scratch, including:
- Simple MCFG table parsing (via pci_mmcfg_late_init() as in current x86)
- MCFG region lookup for a (domain, bus_start, bus_end) tuple
[bhelgaas: changelog]
Signed-off-by: Tomasz Nowicki <tn@semihalf.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 12349de..ce03d65 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1723,7 +1723,7 @@ void pcibios_free_irq(struct pci_dev *dev); extern struct dev_pm_ops pcibios_pm_ops; #endif -#ifdef CONFIG_PCI_MMCONFIG +#if defined(CONFIG_PCI_MMCONFIG) || defined(CONFIG_ACPI_MCFG) void __init pci_mmcfg_early_init(void); void __init pci_mmcfg_late_init(void); #else |
