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path: root/drivers/pci/host/pcie-rcar.c
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* Merge tag 'driver-core-3.19-rc1' of ↵Linus Torvalds2014-12-14
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
| * pci: host: drop owner assignment from platform_driversWolfram Sang2014-10-20
| | | | | | | | | | | | | | A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* | Merge tag 'pci-v3.19-changes' of ↵Linus Torvalds2014-12-10
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI changes from Bjorn Helgaas: "Here are the PCI changes intended for v3.19. I don't think there's anything very exciting here, but there was a lot of MSI-related stuff coming via Thomas. Details: NUMA - Allow numa_node override via sysfs (Prarit Bhargava) Resource management - Restore detection of read-only BARs (Myron Stowe) - Shrink decoding-disabled window while sizing BARs (Myron Stowe) - Add informational printk for invalid BARs (Myron Stowe) - Remove fixed parameter in pci_iov_resource_bar() (Myron Stowe) MSI - Add pci_msi_ignore_mask to prevent writes to MSI/MSI-X Mask Bits (Yijing Wang) - Revert "PCI: Add x86_msi.msi_mask_irq() and msix_mask_irq()" (Yijing Wang) - s390/MSI: Use __msi_mask_irq() instead of default_msi_mask_irq() (Yijing Wang) Virtualization - xen: Process failure for pcifront_(re)scan_root() (Chen Gang) - Make FLR and AF FLR reset warning messages different (Gavin Shan) Generic host bridge driver - Allocate config space windows after limiting bus number range (Lorenzo Pieralisi) - Convert to DT resource parsing API (Lorenzo Pieralisi) Freescale Layerscape - Add Freescale Layerscape PCIe driver (Minghuan Lian) NVIDIA Tegra - Do not build on 64-bit ARM (Thierry Reding) - Add Kconfig help text (Thierry Reding) Renesas R-Car - Make rcar_pci static (Jingoo Han) Samsung Exynos - Add exynos prefix to add_pcie_port(), pcie_init() (Jingoo Han) ST Microelectronics SPEAr13xx - Add spear prefix to add_pcie_port(), pcie_init() (Jingoo Han) - Make spear13xx_add_pcie_port() __init (Jingoo Han) - Remove unnecessary OOM message (Jingoo Han) TI DRA7xx - Add dra7xx prefix to add_pcie_port() (Jingoo Han) - Make dra7xx_add_pcie_port() __init (Jingoo Han) TI Keystone - Make ks_dw_pcie_msi_domain_ops static (Jingoo Han) - Remove unnecessary OOM message (Jingoo Han) Miscellaneous - Delete unnecessary NULL pointer checks (Markus Elfring) - Remove unused to_hotplug_slot() (Gavin Shan) - Whitespace cleanup (Jingoo Han) - Simplify if-return sequences (Quentin Lambert)" * tag 'pci-v3.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (28 commits) PCI: Remove fixed parameter in pci_iov_resource_bar() PCI: Add informational printk for invalid BARs PCI: tegra: Add Kconfig help text PCI: tegra: Do not build on 64-bit ARM PCI: spear: Remove unnecessary OOM message PCI: mvebu: Add a blank line after declarations PCI: designware: Add a blank line after declarations PCI: exynos: Remove unnecessary return statement PCI: imx6: Use tabs for indentation PCI: keystone: Remove unnecessary OOM message PCI: Remove unused and broken to_hotplug_slot() PCI: Make FLR and AF FLR reset warning messages different PCI: dra7xx: Add __init annotation to dra7xx_add_pcie_port() PCI: spear: Add __init annotation to spear13xx_add_pcie_port() PCI: spear: Rename add_pcie_port(), pcie_init() to spear13xx_add_pcie_port(), etc. PCI: dra7xx: Rename add_pcie_port() to dra7xx_add_pcie_port() PCI: layerscape: Add Freescale Layerscape PCIe driver PCI: Simplify if-return sequences PCI: Delete unnecessary NULL pointer checks PCI: Shrink decoding-disabled window while sizing BARs ...
| * | PCI: rcar: Make rcar_pci staticJingoo Han2014-10-23
| |/ | | | | | | | | | | | | Make rcar_pci static because it is used only in this file. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Simon Horman <horms+renesas@verge.net.au>
* | PCI/MSI: Rename mask/unmask_msi_irq treewideThomas Gleixner2014-11-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PCI/MSI irq chip callbacks mask/unmask_msi_irq have been renamed to pci_msi_mask/unmask_irq to mark them PCI specific. Rename all usage sites. The conversion helper functions are kept around to avoid conflicts in next and will be removed after merging into mainline. Coccinelle assisted conversion. No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: x86@kernel.org Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Murali Karicheri <m-karicheri2@ti.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Mohit Kumar <mohit.kumar@st.com> Cc: Simon Horman <horms@verge.net.au> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Yijing Wang <wangyijing@huawei.com>
* | PCI/MSI: Rename write_msi_msg() to pci_write_msi_msg()Jiang Liu2014-11-23
| | | | | | | | | | | | | | | | | | | | | | | | | | Rename write_msi_msg() to pci_write_msi_msg() to mark it as PCI specific. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Grant Likely <grant.likely@linaro.org> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Yingjoe Chen <yingjoe.chen@mediatek.com> Cc: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | PCI: rcar: Save MSI controller in pci_sys_dataYijing Wang2014-11-21
| | | | | | | | | | | | | | | | Save MSI controller in pci_sys_data instead of assigning MSI controller pointer to every PCI bus in .add_bus(). [bhelgaas: use struct rcar_msi.chip, not ctrl] Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* | PCI/MSI: Rename "struct msi_chip" to "struct msi_controller"Yijing Wang2014-11-12
|/ | | | | | | | | | | | "msi_chip" isn't very descriptive, so rename it to "msi_controller". That tells a little more about what it does and is already used in device tree bindings. No functional change. [bhelgaas: changelog, change *only* the struct name so it's reviewable] Suggested-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* of/pci: Fix the conversion of IO ranges into IO resourcesLiviu Dudau2014-09-30
| | | | | | | | | | | | | | | | | | | | | The ranges property for a host bridge controller in DT describes the mapping between the PCI bus address and the CPU physical address. The resources framework however expects that the IO resources start at a pseudo "port" address 0 (zero) and have a maximum size of IO_SPACE_LIMIT. The conversion from PCI ranges to resources failed to take that into account, returning a CPU physical address instead of a port number. Also fix all the drivers that depend on the old behaviour by fetching the CPU physical address based on the port number where it is being needed. Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> CC: Grant Likely <grant.likely@linaro.org> CC: Rob Herring <robh+dt@kernel.org> CC: Arnd Bergmann <arnd@arndb.de> CC: Thierry Reding <thierry.reding@gmail.com> CC: Simon Horman <horms@verge.net.au> CC: Catalin Marinas <catalin.marinas@arm.com>
* PCI: rcar: Fix GPL v2 license string typoBjorn Helgaas2014-07-15
| | | | | | | | Per license_is_gpl_compatible(), the MODULE_LICENSE() string for GPL v2 is "GPL v2", not "GPLv2". Use "GPL v2" so this module doesn't taint the kernel. Based-on-work-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* PCI: rcar: Remove rcar_pcie_setup_window() resource argumentPhil Edworthy2014-07-05
| | | | | | | | | | | rcar_pcie_setup_window() took both the window number and the resource, which was redundant because we can look up the resource from the window number. Remove the "res" argument. Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Simon Horman <horms+renesas@verge.net.au>
* PCI: rcar: Cleanup style and formattingPhil Edworthy2014-07-05
| | | | | | | | This patch just makes symbol and function name changes to avoid potential conflicts, along with minor formatting changes. Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Simon Horman <horms+renesas@verge.net.au>
* PCI: rcar: Use correct initial HW settingsPhil Edworthy2014-07-05
| | | | | | | | | | | | | | | Although the R-Car PCIe driver works as it is, there are a number of incorrect settings that this patch corrects. It corrects: - enabling the PCI Express Extended Cap ID. - setting Data Link Layer Link Active Reporting Capable. - terminating list of capabilities. It also removes enabling the MAC data scrambling as this is the default HW setting, and removes incorrect code to enable slave bus mastering as this is done by the PCI core. Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Simon Horman <horms+renesas@verge.net.au>
* PCI: rcar: Remove redundant config accessor register number checksSergei Shtylyov2014-07-05
| | | | | | | | | | The PCI core will have already checked the configuration register address before calling the {read|write}() methods; so don't check it again in these methods. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Phil Edworthy <phil.edworthy@renesas.com> Acked-by: Simon Horman <horms+renesas@verge.net.au>
* PCI: Merge multi-line quoted stringsRyan Desfosses2014-06-10
| | | | | | | | | | | Merge quoted strings that are broken across lines into a single entity. The compiler merges them anyway, but checkpatch complains about it, and merging them makes it easier to grep for strings. No functional change. [bhelgaas: changelog, do the same for everything under drivers/pci] Signed-off-by: Ryan Desfosses <ryan@desfo.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* PCI: rcar: Add MSI support for PCIePhil Edworthy2014-05-27
| | | | | | | | Add MSI support to the R-Car PCIe driver. Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: Simon Horman <horms+renesas@verge.net.au>
* PCI: rcar: Add Renesas R-Car PCIe driverPhil Edworthy2014-05-27
This PCIe Host driver currently does not support MSI, so cards fall back to INTx interrupts. Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Simon Horman <horms+renesas@verge.net.au>