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2022-04-18MIPS/octeon: use swiotlb_init instead of open coding itChristoph Hellwig1-1/+1
Use the generic swiotlb initialization helper instead of open coding it. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Tested-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2019-01-29MIPS: OCTEON: don't set octeon_dma_bar_type if PCI is disabledAaro Koskinen1-5/+5
Don't set octeon_dma_bar_type if PCI is disabled. This avoids creation of the MSI irqchip later on, and saves a bit of memory. Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Paul Burton <paul.burton@mips.com> Fixes: a214720cbf50 ("Disable MSI also when pcie-octeon.pcie_disable on") Cc: stable@vger.kernel.org # v3.3+ Cc: linux-mips@vger.kernel.org
2018-06-24MIPS: Octeon: move swiotlb declarations out of dma-coherence.hChristoph Hellwig1-2/+0
No need to pull them into a global header. Signed-off-by: Christoph Hellwig <hch@lst.de> Patchwork: https://patchwork.linux-mips.org/patch/19538/ Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: David Daney <david.daney@cavium.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de> Cc: Huacai Chen <chenhc@lemote.com> Cc: iommu@lists.linux-foundation.org Cc: linux-mips@linux-mips.org
2018-06-24MIPS: Octeon: refactor swiotlb codeChristoph Hellwig1-2/+0
Share a common set of swiotlb operations, and to instead branch out in __phys_to_dma/__dma_to_phys for the PCI vs non-PCI case. Also use const structures for the PCI methods so that attackers can't use them as exploit vectors. Signed-off-by: Christoph Hellwig <hch@lst.de> Patchwork: https://patchwork.linux-mips.org/patch/19532/ Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: David Daney <david.daney@cavium.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de> Cc: Huacai Chen <chenhc@lemote.com> Cc: iommu@lists.linux-foundation.org Cc: linux-mips@linux-mips.org
2017-09-19MIPS: PCI: Move map_irq() hooks out of initdataLorenzo Pieralisi1-3/+2
04c81c7293df ("MIPS: PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks") moved the PCI IRQ fixup to the new host bridge map/swizzle_irq() hooks mechanism. Those hooks can also be called after boot, when all the __init/__initdata/__initconst sections have been freed. Therefore, functions called by them (and the data they refer to) must not be marked as __init/__initdata/__initconst lest compilation trigger section mismatch warnings. Fix all the board files map_irq() hooks by simply removing the respective __init/__initdata/__initconst section markers and by adding another persistent hook IRQ map for the txx9 board files. Fixes: 04c81c7293df ("MIPS: PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks") Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Steve French <smfrench@gmail.com>
2017-01-24treewide: Move dma_ops from struct dev_archdata into struct deviceBart Van Assche1-1/+1
Some but not all architectures provide set_dma_ops(). Move dma_ops from struct dev_archdata into struct device such that it becomes possible on all architectures to configure dma_ops per device. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Juergen Gross <jgross@suse.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Russell King <linux@armlinux.org.uk> Cc: x86@kernel.org Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-10-04MIPS: Octeon: Fix PCI interrupt routing on D-Link DSR-500N.Aaro Koskinen1-0/+2
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: devicetree@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14250/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-10MIPS: OCTEON: fix PCI interrupt mapping for D-Link DSR-1000NAaro Koskinen1-0/+2
Fix PCI interrupt mapping for DSR1000N. This will get the PCI slot interrupts working. The mapping is based on D-Link GPL tarball. Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9593/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-10MIPS: Octeon: Remove udelay() causing huge IRQ latencyAlexander Sverdlin1-6/+0
udelay() in PCI/PCIe read/write callbacks cause 30ms IRQ latency on Octeon platforms because these operations are called from PCI_OP_READ() and PCI_OP_WRITE() under raw_spin_lock_irqsave(). Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Cc: linux-mips@linux-mips.org Cc: David Daney <ddaney@cavium.com> Cc: Rob Herring <robh@kernel.org> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Masanari Iida <standby24x7@gmail.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Mathias <mathias.rulf@nokia.com> Patchwork: https://patchwork.linux-mips.org/patch/9576/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-01-16MIPS: Add struct pci_ops member names to initializationRob Herring1-2/+2
Some instances of pci_ops initialization rely on the read/write members' location in the struct. This is fragile and may break when adding new members to the beginning of the struct. [ralf@linux-mips.org: indent = with tabs for consistency.] Signed-off-by: Rob Herring <robh@kernel.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: Arnd Bergmann <arnd@arndb.de> Cc: linux-pci@vger.kernel.org Cc: Bjorn Helgaas <bhelgaas@google.com> Patchwork: https://patchwork.linux-mips.org/patch/8915/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-11-20treewide: fix typo in printk and KconfigMasanari Iida1-1/+1
This patch fix spelling typo in printk and Kconfig within various part of kernel sources. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-08-26MIPS: cavium-octeon: fix I/O space setup on non-PCI systemsAaro Koskinen1-4/+5
Fix I/O space setup, so that on non-PCI systems using inb()/outb() won't crash the system. Some drivers may try to probe I/O space and for that purpose we can just allocate some normal memory initially. Drivers trying to reserve a region will fail early as we set the size to 0. If a real I/O space is present, the PCI/PCIe support code will re-adjust the values accordingly. Tested with EdgeRouter Lite by enabling CONFIG_SERIO_I8042 that caused the originally reported crash. Reported-by: Faidon Liambotis <paravoid@debian.org> Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Acked-by: David Daney <david.daney@cavium.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5626/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-02-01MIPS: Whitespace cleanup.Ralf Baechle1-15/+15
Having received another series of whitespace patches I decided to do this once and for all rather than dealing with this kind of patches trickling in forever. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-12-13MIPS/EDAC: Improve OCTEON EDAC support.David Daney1-1/+2
Some initialization errors are reported with the existing OCTEON EDAC support patch. Also some parts have more than one memory controller. Fix the errors and add multiple controllers if present. Signed-off-by: David Daney <david.daney@cavium.com>
2012-12-12MIPS: Cavium: Add EDAC support.Ralf Baechle1-0/+4
Drivers for EDAC on Cavium. Supported subsystems are: o CPU primary caches. These are parity protected only, so only error reporting. o Second level cache - ECC protected, provides SECDED. o Memory: ECC / SECDEC if used with suitable DRAM modules. The driver will will only initialize if ECC is enabled on a system so is safe to run on non-ECC memory. o PCI: Parity error reporting Since it is very hard to test this sort of code the implementation is very conservative and uses polling where possible for now. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Reviewed-by: Borislav Petkov <borislav.petkov@amd.com>
2012-10-06sections: fix section conflicts in arch/mipsAndi Kleen1-1/+1
Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-08-23MIPS: PCI: Use PCI Express Capability accessorsJiang Liu1-10/+5
Use PCI Express Capability access functions to simplify MIPS PCIe code. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: David Daney <david.daney@cavium.com>
2011-12-08MIPS: Octeon: Update PCI Latency timer and enable more error reporting.David Daney1-10/+6
Signed-off-by: David Daney <ddaney@caviumnetworks.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2987/ Patchwork: https://patchwork.linux-mips.org/patch/3161/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-03-31Fix common misspellingsLucas De Marchi1-2/+2
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2010-10-29MIPS: Octeon: Rewrite DMA mapping functions.David Daney1-6/+54
All Octeon chips can support more than 4GB of RAM. Also due to how Octeon PCI is setup, even some configurations with less than 4GB of RAM will have portions that are not accessible from 32-bit devices. Enable the swiotlb code to handle the cases where a device cannot directly do DMA. This is a complete rewrite of the Octeon DMA mapping code. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Patchwork: http://patchwork.linux-mips.org/patch/1639/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Cleanup switches with cases that can be mergedRoel Kluin1-4/+2
Signed-off-by: Roel Kluin <roel.kluin@gmail.com> To: linux-mips@linux-mips.org To: Andrew Morton <akpm@linux-foundation.org> To: LKML <linux-kernel@vger.kernel.org> Patchwork: http://patchwork.linux-mips.org/patch/860/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-07-03MIPS: Reorganize Cavium OCTEON PCI support.David Daney1-0/+675
Move the cavium PCI files to the arch/mips/pci directory. Also cleanup comment formatting and code layout. Code from pci-common.c, was moved into other files. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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