aboutsummaryrefslogtreecommitdiff
path: root/arch/mips/pci/pci-xtalk-bridge.c
AgeCommit message (Collapse)AuthorFilesLines
2020-09-11dma-direct: rename and cleanup __phys_to_dmaChristoph Hellwig1-1/+1
The __phys_to_dma vs phys_to_dma distinction isn't exactly obvious. Try to improve the situation by renaming __phys_to_dma to phys_to_dma_unencryped, and not forcing architectures that want to override phys_to_dma to actually provide __phys_to_dma. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Robin Murphy <[email protected]>
2020-09-11dma-direct: remove __dma_to_physChristoph Hellwig1-1/+1
There is no harm in just always clearing the SME encryption bit, while significantly simplifying the interface. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Robin Murphy <[email protected]>
2020-07-23irqdomain/treewide: Free firmware node after domain removalJon Derrick1-0/+3
Commit 711419e504eb ("irqdomain: Add the missing assignment of domain->fwnode for named fwnode") unintentionally caused a dangling pointer page fault issue on firmware nodes that were freed after IRQ domain allocation. Commit e3beca48a45b fixed that dangling pointer issue by only freeing the firmware node after an IRQ domain allocation failure. That fix no longer frees the firmware node immediately, but leaves the firmware node allocated after the domain is removed. The firmware node must be kept around through irq_domain_remove, but should be freed it afterwards. Add the missing free operations after domain removal where where appropriate. Fixes: e3beca48a45b ("irqdomain/treewide: Keep firmware node unconditionally allocated") Signed-off-by: Jon Derrick <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Andy Shevchenko <[email protected]> Acked-by: Bjorn Helgaas <[email protected]> # drivers/pci Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected]
2020-07-14irqdomain/treewide: Keep firmware node unconditionally allocatedThomas Gleixner1-2/+3
Quite some non OF/ACPI users of irqdomains allocate firmware nodes of type IRQCHIP_FWNODE_NAMED or IRQCHIP_FWNODE_NAMED_ID and free them right after creating the irqdomain. The only purpose of these FW nodes is to convey name information. When this was introduced the core code did not store the pointer to the node in the irqdomain. A recent change stored the firmware node pointer in irqdomain for other reasons and missed to notice that the usage sites which do the alloc_fwnode/create_domain/free_fwnode sequence are broken by this. Storing a dangling pointer is dangerous itself, but in case that the domain is destroyed later on this leads to a double free. Remove the freeing of the firmware node after creating the irqdomain from all affected call sites to cure this. Fixes: 711419e504eb ("irqdomain: Add the missing assignment of domain->fwnode for named fwnode") Reported-by: Andy Shevchenko <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Acked-by: Bjorn Helgaas <[email protected]> Acked-by: Marc Zyngier <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected]
2020-01-24MIPS: PCI: Add detection of IOC3 on IO7, IO8, IO9 and FuelThomas Bogendoerfer1-0/+24
Add detection for IOC3 chips in IP35 machines. Signed-off-by: Thomas Bogendoerfer <[email protected]> Signed-off-by: Paul Burton <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: James Hogan <[email protected]> Cc: [email protected] Cc: [email protected]
2020-01-09MIPS: PCI: Support mapping of INTB/C/D for pci-xtalk-bridgeThomas Bogendoerfer1-4/+24
Implented mapping of PCI INTB/C/D, which is needed for PCI multifunction devices, PCI-PCI bridges and IOC3. Signed-off-by: Thomas Bogendoerfer <[email protected]> Signed-off-by: Paul Burton <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: James Hogan <[email protected]> Cc: [email protected] Cc: [email protected]
2019-11-23MIPS: PCI: Fix fake subdevice ID for IOC3Thomas Bogendoerfer1-1/+1
Generation of fake subdevice ID had vendor and device ID swapped. Signed-off-by: Thomas Bogendoerfer <[email protected]> Signed-off-by: Paul Burton <[email protected]> Cc: Jakub Kicinski <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Paul Burton <[email protected]> Cc: James Hogan <[email protected]> Cc: Lee Jones <[email protected]> Cc: David S. Miller <[email protected]> Cc: Srinivas Kandagatla <[email protected]> Cc: Alessandro Zummo <[email protected]> Cc: Alexandre Belloni <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Jiri Slaby <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected]
2019-11-22MIPS: PCI: remember nasid changed by set interrupt affinityThomas Bogendoerfer1-3/+2
When changing interrupt affinity remember the possible changed nasid, otherwise an interrupt deactivate/activate sequence will incorrectly setup interrupt. Fixes: e6308b6d35ea ("MIPS: SGI-IP27: abstract chipset irq from bridge") Signed-off-by: Thomas Bogendoerfer <[email protected]> Signed-off-by: Paul Burton <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: James Hogan <[email protected]> Cc: [email protected] Cc: [email protected]
2019-11-01MIPS: PCI: make phys_to_dma/dma_to_phys for pci-xtalk-bridge commonThomas Bogendoerfer1-0/+16
All platforms using pci-xtalk-bridge can share common phys_to_dma/ dma_to_phys function. So we move it form ip27 specific file to pci-xtalk-bridge.c Signed-off-by: Thomas Bogendoerfer <[email protected]> Signed-off-by: Paul Burton <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Paul Burton <[email protected]> Cc: James Hogan <[email protected]> Cc: [email protected] Cc: [email protected]
2019-10-07MIPS: PCI: use information from 1-wire PROM for IOC3 detectionThomas Bogendoerfer1-3/+132
IOC3 chips in SGI system are conntected to a bridge ASIC, which has a 1-wire prom attached with part number information. This changeset uses this information to create PCI subsystem information, which the MFD driver uses for further platform device setup. Signed-off-by: Thomas Bogendoerfer <[email protected]> Signed-off-by: Paul Burton <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: James Hogan <[email protected]> Cc: Lee Jones <[email protected]> Cc: David S. Miller <[email protected]> Cc: Srinivas Kandagatla <[email protected]> Cc: Alessandro Zummo <[email protected]> Cc: Alexandre Belloni <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Jiri Slaby <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected]
2019-10-07MIPS: SGI-IP27: get rid of compact node idsThomas Bogendoerfer1-1/+1
Node ids don't need to be contiguous in Linux, so the concept to use compact node ids to make them contiguous isn't needed at all. This patchset therefore removes it. Signed-off-by: Thomas Bogendoerfer <[email protected]> Signed-off-by: Paul Burton <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: James Hogan <[email protected]> Cc: [email protected] Cc: [email protected]
2019-08-31MIPS: PCI: refactor ioc3 special handlingThomas Bogendoerfer1-105/+62
Refactored code to only have one ioc3 special handling for read access and one for write access. Signed-off-by: Thomas Bogendoerfer <[email protected]> Signed-off-by: Paul Burton <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: James Hogan <[email protected]> Cc: Dmitry Torokhov <[email protected]> Cc: Lee Jones <[email protected]> Cc: David S. Miller <[email protected]> Cc: Srinivas Kandagatla <[email protected]> Cc: Alessandro Zummo <[email protected]> Cc: Alexandre Belloni <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Jiri Slaby <[email protected]> Cc: Evgeniy Polyakov <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected]
2019-05-09MIPS: SGI-IP27: abstract chipset irq from bridgeThomas Bogendoerfer1-10/+168
Bridge ASIC is widely used in different SGI systems, but the connected chipset is either HUB, HEART or BEDROCK. This commit switches to irq domain hierarchy for hub and bridge interrupts to get bridge setup out of hub interrupt code. Signed-off-by: Thomas Bogendoerfer <[email protected]> [[email protected]: Resolve conflict with commit 69a07a41d908 ("MIPS: SGI-IP27: rework HUB interrupts").] Signed-off-by: Paul Burton <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: James Hogan <[email protected]> Cc: [email protected] Cc: [email protected]
2019-05-09MIPS: SGI-IP27: use generic PCI driverThomas Bogendoerfer1-0/+452
Converted bridge code to a platform driver using the PCI generic driver framework and use adding platform devices during xtalk scan. This allows easier sharing bridge driver for other SGI platforms like IP30 (Octane) and IP35 (Origin 3k, Fuel, Tezro). Signed-off-by: Thomas Bogendoerfer <[email protected]> [[email protected]: - Leave __phys_to_dma(), __dma_to_phys() & pcibus_to_node() in arch/mips/pci/pci-ip27.c since the motivation for moving them disappeared when the driver stopped being moved to drivers/pci.] Signed-off-by: Paul Burton <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: James Hogan <[email protected]> Cc: [email protected] Cc: [email protected]
Powered by cgit, Gruvboxed by Blaster4385.