kernel/linux.git/arch/mips/include/asm/pci.h, branch linux-4.16.y

PCI: Remove redundant pci_dev, pci_bus, resource declarations

2017-11-08T00:38:48+00:00

defines struct pci_bus and struct pci_dev and includes the struct resource definition before including . Nobody includes directly, so they don't need their own declarations. Remove the redundant struct pci_dev, pci_bus, resource declarations. Signed-off-by: Bjorn Helgaas Reviewed-by: Ingo Molnar Acked-by: Jesper Nilsson # CRIS Acked-by: Ralf Baechle # MIPS

PCI: Remove redundant pcibios_set_master() declarations

2017-11-08T00:38:47+00:00

All users of pcibios_set_master() include , which already has a declaration. Remove the unnecessary declarations from the files. Signed-off-by: Bjorn Helgaas Reviewed-by: Thomas Gleixner Reviewed-by: Ingo Molnar Acked-by: Jesper Nilsson # CRIS Acked-by: Ralf Baechle # MIPS

MIPS: PCI: Remove unused busn_offset

2017-05-18T20:39:19+00:00

pci_add_resource_offset() is for host bridge windows where the bridge translates CPU addresses to PCI bus addresses by adding an offset. To my knowledge, no host bridge translates bus numbers, so this is only useful for MEM and IO windows. In any event, host->busn_offset is never set to anything other than zero, so pci_add_resource() is sufficient. a2e50f53d535 ("MIPS: PCI: Add a hook for IORESOURCE_BUS in pci_controller/bridge_controller") also added busn_resource itself. This is currently unused but may be used by future SGI IP27 fixes, so I left it there. Tested-by: Joshua Kinard # SGI IP30 and IP27 Signed-off-by: Bjorn Helgaas Acked-by: Joshua Kinard

MIPS: PCI: Use generic pci_mmap_resource_range()

2017-04-20T13:47:47+00:00

Signed-off-by: David Woodhouse Signed-off-by: Bjorn Helgaas

PCI: Move multiple declarations of pci_mmap_page_range() to

2017-04-18T18:02:11+00:00

We can declare it even on platforms where it isn't going to be defined. There's no need to have it littered through the various files. Signed-off-by: David Woodhouse Signed-off-by: Bjorn Helgaas

MIPS: PCI: Introduce CONFIG_PCI_DRIVERS_LEGACY

2016-10-06T16:00:05+00:00

Introduce 2 Kconfig symbols, CONFIG_PCI_DRIVERS_GENERIC & CONFIG_PCI_DRIVERS_LEGACY, which indicate whether the system should be built to for PCI drivers using the MIPS-specific struct pci_controller API (hereafter "legacy" drivers) or more generic drivers using only functionality provided by the PCI core (hereafter "generic" drivers). The Kconfig entries are created such that platforms have to select CONFIG_PCI_DRIVERS_GENERIC if they wish to use it - that is, the default is CONFIG_PCI_DRIVERS_LEGACY so that existing platforms need no modification. The functions declared in pci.h are rearranged with those provided only by pci-legacy.c being guarded by an #ifdef CONFIG_PCI_DRIVERS_LEGACY to ensure they are only used in configurations where they are implemented. Signed-off-by: Paul Burton Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/14345/ Signed-off-by: Ralf Baechle

MIPS: PCI: Inline pcibios_assign_all_busses

2016-10-06T15:57:52+00:00

The MIPS implementation of pcibios_assign_all_busses trivially returns 1. Implement it as a static function in asm/pci.h such that the compiler can inline it & optimise out never-taken paths. Signed-off-by: Paul Burton Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/14343/ Signed-off-by: Ralf Baechle

MIPS: PCI: Support for CONFIG_PCI_DOMAINS_GENERIC

2016-10-06T15:57:23+00:00

Introduce support for CONFIG_PCI_DOMAINS_GENERIC, allowing for platforms to make use of generic PCI domains instead of the MIPS-specific implementation. The set_pci_need_domain_info function is introduced to abstract away the removed need_domain_info field in struct pci_controller, and pcibios_scanbus is adjusted to use the pci_domain_nr accessor instead of directly accessing the index field. Signed-off-by: Paul Burton Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/14341/ Signed-off-by: Ralf Baechle

MIPS: PCI: Use struct list_head lists

2016-10-06T15:56:13+00:00

Rather than open-coding a linked list implementation, make use of the one in linux/list.h. Signed-off-by: Paul Burton Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/14340/ Signed-off-by: Ralf Baechle

PCI: Unify pci_resource_to_user() declarations

2016-06-17T19:43:34+00:00

Replace the pci_resource_to_user() declarations in each arch that defines HAVE_ARCH_PCI_RESOURCE_TO_USER with a single one in linux/pci.h. Change the MIPS static inline implementation to a non-inline version so the static inline doesn't conflict with the new non-static linux/pci.h declaration. No functional change intended. Signed-off-by: Bjorn Helgaas