From: Jayachandran C <jchandra@broadcom.com>
To: Bjorn Helgaas <helgaas@kernel.org>,
Tomasz Nowicki <tn@semihalf.com>,
rafael@kernel.org
Cc: Jayachandran C <jchandra@broadcom.com>,
Arnd Bergmann <arnd@arndb.de>, Will Deacon <will.deacon@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Hanjun Guo <hanjun.guo@linaro.org>,
Lorenzo Pieralisi <Lorenzo.Pieralisi@arm.com>,
okaya@codeaurora.org, jiang.liu@linux.intel.com,
Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>,
robert.richter@caviumnetworks.com,
Marcin Wojtas <mw@semihalf.com>,
Liviu.Dudau@arm.com, David Daney <ddaney@caviumnetworks.com>,
wangyijing@huawei.com, Suravee.Suthikulpanit@amd.com,
msalter@redhat.com, linux-pci@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org,
linux-kernel@vger.kernel.org, linaro-acpi@lists.linaro.org,
Jon Masters <jcm@redhat.com>
Subject: [PATCH v2 0/4] ACPI based PCI host driver with generic ECAM
Date: Tue, 12 Apr 2016 04:15:03 +0530 [thread overview]
Message-ID: <1460414707-19153-1-git-send-email-jchandra@broadcom.com> (raw)
Here is v2 of the patchset for the ACPI PCI controller driver based on
the earlier discussion[1].
This patchset unifies the pci-host-generic ECAM code and the ACPI PCI
ECAM code much further so that both the implementations can use the
same structure (struct pci_config_window) as ->sysdata.
The patchset should also make it easier to share platform quirks between
DT and ACPI PCI controller drivers using struct pci_generic_ecam_ops.
Short description of the patches in the patchset:
- fixup arm64 PCI code so that it can use the generic ACPI PCI driver.
- implement pci/drivers/ecam.[ch] which will replace
drivers/pci/host/pci-host-common.h API for ECAM access and will be
shared by ACPI and DT.
- Update users of the pci-host-common API to the ecam API
- implement a simple PCI ACPI host. 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 4.6 tree or the pci
next tree, and can be reviewed as a patchset. The full set of changes
for arm64 includes other fixes, that series is available at
https://github.com/jchandra-brcm/linux branch arm64-acpi-pci-v2
This has been tested on qemu with OVMF for the ACPI part and with
device tree for pci-host-generic code. Further testing and reviews
are welcome.
Thanks,
JC.
[1] https://lkml.org/lkml/2016/3/3/921
Jayachandran C (4):
arm64: Prepare to use generic ACPI PCI implementation
PCI: Provide common functions for ECAM mapping
PCI: generic, thunder: update to use generic ECAM API
ACPI: PCI: Add generic PCI host controller
arch/arm64/Kconfig | 3 +
arch/arm64/kernel/pci.c | 7 +-
drivers/acpi/Kconfig | 9 ++
drivers/acpi/Makefile | 1 +
drivers/acpi/pci_gen_host.c | 258 ++++++++++++++++++++++++++++++++++++
drivers/pci/Kconfig | 3 +
drivers/pci/Makefile | 2 +
drivers/pci/ecam.c | 130 ++++++++++++++++++
drivers/pci/ecam.h | 63 +++++++++
drivers/pci/host/Kconfig | 1 +
drivers/pci/host/pci-host-common.c | 121 ++++++++---------
drivers/pci/host/pci-host-common.h | 47 -------
drivers/pci/host/pci-host-generic.c | 50 ++-----
drivers/pci/host/pci-thunder-ecam.c | 37 +-----
drivers/pci/host/pci-thunder-pem.c | 53 +++-----
15 files changed, 560 insertions(+), 225 deletions(-)
create mode 100644 drivers/acpi/pci_gen_host.c
create mode 100644 drivers/pci/ecam.c
create mode 100644 drivers/pci/ecam.h
delete mode 100644 drivers/pci/host/pci-host-common.h
--
1.9.1
next reply other threads:[~2016-04-11 22:45 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-11 22:45 Jayachandran C [this message]
2016-04-11 22:45 ` [PATCH v2 1/4] arm64: Prepare to use generic ACPI PCI implementation Jayachandran C
2016-04-11 22:45 ` [PATCH v2 2/4] PCI: Provide common functions for ECAM mapping Jayachandran C
2016-04-12 0:24 ` David Daney
2016-04-12 4:26 ` Jon Masters
2016-04-12 16:44 ` Lorenzo Pieralisi
2016-04-14 5:55 ` Jon Masters
2016-04-14 10:05 ` Lorenzo Pieralisi
2016-04-14 15:40 ` Jayachandran C
2016-04-11 22:45 ` [PATCH v2 3/4] PCI: generic, thunder: update to use generic ECAM API Jayachandran C
2016-04-12 0:34 ` David Daney
2016-04-14 14:15 ` Jayachandran C
2016-04-11 22:45 ` [PATCH v2 4/4] ACPI: PCI: Add generic PCI host controller Jayachandran C
2016-04-12 1:38 ` kbuild test robot
2016-04-14 15:53 ` Sinan Kaya
2016-04-14 15:58 ` Sinan Kaya
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