Hi Bjorn, Here is a new patchset for the ACPI PCI controller driver based on the earlier discussion[1]. The first two patches in the patchset implements pci/ecam.c for generic config space access and uses it in pci-host-generic.c and related files. The third patch implements the ACPI PCI host driver using the same ecam access functions. The fourth patch adds the implementation of raw operations. I have not used the pci_mmcfg_list or the region definitions from x86, but have used a much simpler approach here. This should apply cleanly on top of the current pci next tree, and can be reviewed as a patchset. To use it on ARM64, we need to pull in about 7 patches more from Tomasz patchset that fixes various issues (like stub code in arm64 pci.c, ACPI companion setup, domain number assignment, IO resources fixup etc.). If you are okay with this approach, I will work with Tomasz and post the full patchset. This has been tested on qemu with OVMF for the ACPI part and with device tree for pci-host-generic code. Thanks, JC. [1] https://lkml.org/lkml/2016/3/3/921 Jayachandran C (4): PCI: Provide generic ECAM mapping functions PCI: generic,thunder: Use generic config functions ACPI: PCI: Add generic PCI host controller ACPI: PCI: Add raw_pci_read/write operations drivers/acpi/Kconfig | 9 + drivers/acpi/Makefile | 1 + drivers/acpi/pci_gen_host.c | 334 ++++++++++++++++++++++++++++++++++++ drivers/pci/Kconfig | 3 + drivers/pci/Makefile | 2 + drivers/pci/ecam.c | 127 ++++++++++++++ drivers/pci/host/Kconfig | 1 + drivers/pci/host/pci-host-common.c | 68 ++++---- drivers/pci/host/pci-host-common.h | 25 +-- drivers/pci/host/pci-host-generic.c | 51 +----- drivers/pci/host/pci-thunder-ecam.c | 33 +--- drivers/pci/host/pci-thunder-pem.c | 41 ++--- include/linux/pci.h | 10 ++ 13 files changed, 560 insertions(+), 145 deletions(-) create mode 100644 drivers/acpi/pci_gen_host.c create mode 100644 drivers/pci/ecam.c -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
