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author | Tomasz Nowicki <tn@semihalf.com> | 2016-06-10 21:55:18 +0200 |
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committer | Bjorn Helgaas <bhelgaas@google.com> | 2016-06-10 18:36:19 -0500 |
commit | f058f4fbd64028c9e9d433472cf6bcff8efdce7c (patch) | |
tree | b5e5fe0b58be15d592f533e8c3348edc67c52e00 /tools/perf/scripts/python/stackcollapse.py | |
parent | d8ed75d593321c80ccd92f9dba218e90286bde16 (diff) |
ARM64: PCI: Implement AML accessors for PCI_Config region
On ACPI systems, the PCI_Config OperationRegion allows AML to access PCI
configuration space. The ACPI CA AML interpreter uses performs config
space accesses with acpi_os_read_pci_configuration() and
acpi_os_write_pci_configuration(), which are OS-dependent functions
supplied by acpi/osl.c.
Implement the arch-specific raw_pci_read() and raw_pci_write() interfaces
used by acpi/osl.c for PCI_Config accesses.
N.B. PCI_Config accesses are not supported before PCI bus enumeration.
[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 'tools/perf/scripts/python/stackcollapse.py')
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