Commit 158a71f8 authored by Olof Johansson's avatar Olof Johansson
Browse files

Merge tag 'msi-3.12' of git://git.infradead.org/linux-mvebu into next/drivers 

From Jason Cooper:
mvebu msi pci changes for v3.12

 - introduce support for MSI on PCI
 - fix s390 build breakage when !HAVE_GENERIC_HARDIRQS

NOTE: This branch is a dependency for changes going though arm-soc from both
Thomas Petazzoni and Thierry Reding.

* tag 'msi-3.12' of git://git.infradead.org/linux-mvebu

:
  PCI: msi: add default MSI operations for !HAVE_GENERIC_HARDIRQS platforms
  ARM: pci: add ->add_bus() and ->remove_bus() hooks to hw_pci
  of: pci: add registry of MSI chips
  PCI: Introduce new MSI chip infrastructure
  PCI: remove ARCH_SUPPORTS_MSI kconfig option
  PCI: use weak functions for MSI arch-specific functions

Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
parents aaf75e45 6a4324eb

arch/arm/Kconfig

+0 −1
Original line number Diff line number Diff line
@@ -441,7 +441,6 @@ config ARCH_NETX 
config ARCH_IOP13XX

	bool "IOP13xx-based"

	depends on MMU

	select ARCH_SUPPORTS_MSI

	select CPU_XSC3

	select NEED_MACH_MEMORY_H

	select NEED_RET_TO_USER

arch/arm/include/asm/mach/pci.h

+4 −0
Original line number Diff line number Diff line
@@ -36,6 +36,8 @@ struct hw_pci { 
					  resource_size_t start,

					  resource_size_t size,

					  resource_size_t align);

	void		(*add_bus)(struct pci_bus *bus);

	void		(*remove_bus)(struct pci_bus *bus);

};



/*
@@ -63,6 +65,8 @@ struct pci_sys_data { 
					  resource_size_t start,

					  resource_size_t size,

					  resource_size_t align);

	void		(*add_bus)(struct pci_bus *bus);

	void		(*remove_bus)(struct pci_bus *bus);

	void		*private_data;	/* platform controller private data	*/

};

arch/arm/kernel/bios32.c

+16 −0
Original line number Diff line number Diff line
@@ -363,6 +363,20 @@ void pcibios_fixup_bus(struct pci_bus *bus) 
}

EXPORT_SYMBOL(pcibios_fixup_bus);



void pcibios_add_bus(struct pci_bus *bus)

{

	struct pci_sys_data *sys = bus->sysdata;

	if (sys->add_bus)

		sys->add_bus(bus);

}



void pcibios_remove_bus(struct pci_bus *bus)

{

	struct pci_sys_data *sys = bus->sysdata;

	if (sys->remove_bus)

		sys->remove_bus(bus);

}



/*

 * Swizzle the device pin each time we cross a bridge.  If a platform does

 * not provide a swizzle function, we perform the standard PCI swizzling.
@@ -464,6 +478,8 @@ static void pcibios_init_hw(struct device *parent, struct hw_pci *hw, 
		sys->swizzle = hw->swizzle;

		sys->map_irq = hw->map_irq;

		sys->align_resource = hw->align_resource;

		sys->add_bus = hw->add_bus;

		sys->remove_bus = hw->remove_bus;

		INIT_LIST_HEAD(&sys->resources);



		if (hw->private_data)

arch/ia64/Kconfig

+0 −1
Original line number Diff line number Diff line
@@ -9,7 +9,6 @@ config IA64 
	select PCI if (!IA64_HP_SIM)

	select ACPI if (!IA64_HP_SIM)

	select PM if (!IA64_HP_SIM)

	select ARCH_SUPPORTS_MSI

	select HAVE_UNSTABLE_SCHED_CLOCK

	select HAVE_IDE

	select HAVE_OPROFILE

arch/mips/Kconfig

+0 −2
Original line number Diff line number Diff line
@@ -727,7 +727,6 @@ config CAVIUM_OCTEON_SOC 
	select SYS_HAS_CPU_CAVIUM_OCTEON

	select SWAP_IO_SPACE

	select HW_HAS_PCI

	select ARCH_SUPPORTS_MSI

	select ZONE_DMA32

	select USB_ARCH_HAS_OHCI

	select USB_ARCH_HAS_EHCI
@@ -763,7 +762,6 @@ config NLM_XLR_BOARD 
	select CEVT_R4K

	select CSRC_R4K

	select IRQ_CPU

	select ARCH_SUPPORTS_MSI

	select ZONE_DMA32 if 64BIT

	select SYNC_R4K

	select SYS_HAS_EARLY_PRINTK

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