[PATCHv8 02/10] PCI: remove ARCH_SUPPORTS_MSI kconfig option
Benjamin Herrenschmidt
benh at kernel.crashing.org
Thu Aug 8 18:39:57 EDT 2013
On Fri, 2013-08-09 at 00:17 +0200, Thomas Petazzoni wrote:
> Now that we have weak versions for each of the PCI MSI architecture
> functions, we can actually build the MSI support for all platforms,
> regardless of whether they provide or not architecture-specific
> versions of those functions. For this reason, the ARCH_SUPPORTS_MSI
> hidden kconfig boolean becomes useless, and this patch gets rid of it.
>
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
> Acked-by: Bjorn Helgaas <bhelgaas at google.com>
> Tested-by: Daniel Price <daniel.price at gmail.com>
> Tested-by: Thierry Reding <thierry.reding at gmail.com>
Acked-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>
> Cc: Paul Mackerras <paulus at samba.org>
> Cc: linuxppc-dev at lists.ozlabs.org
> Cc: Martin Schwidefsky <schwidefsky at de.ibm.com>
> Cc: Heiko Carstens <heiko.carstens at de.ibm.com>
> Cc: linux390 at de.ibm.com
> Cc: linux-s390 at vger.kernel.org
> Cc: Thomas Gleixner <tglx at linutronix.de>
> Cc: Ingo Molnar <mingo at redhat.com>
> Cc: H. Peter Anvin <hpa at zytor.com>
> Cc: x86 at kernel.org
> Cc: Russell King <linux at arm.linux.org.uk>
> Cc: Tony Luck <tony.luck at intel.com>
> Cc: Fenghua Yu <fenghua.yu at intel.com>
> Cc: linux-ia64 at vger.kernel.org
> Cc: Ralf Baechle <ralf at linux-mips.org>
> Cc: linux-mips at linux-mips.org
> Cc: David S. Miller <davem at davemloft.net>
> Cc: sparclinux at vger.kernel.org
> Cc: Chris Metcalf <cmetcalf at tilera.com>
> ---
> arch/arm/Kconfig | 1 -
> arch/ia64/Kconfig | 1 -
> arch/mips/Kconfig | 2 --
> arch/powerpc/Kconfig | 1 -
> arch/s390/Kconfig | 1 -
> arch/sparc/Kconfig | 1 -
> arch/tile/Kconfig | 1 -
> arch/x86/Kconfig | 1 -
> drivers/pci/Kconfig | 4 ----
> 9 files changed, 13 deletions(-)
>
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 37c0f4e..41b6c96 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -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
> diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
> index 5a768ad..098602b 100644
> --- a/arch/ia64/Kconfig
> +++ b/arch/ia64/Kconfig
> @@ -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
> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
> index c3abed3..01b5f5a 100644
> --- a/arch/mips/Kconfig
> +++ b/arch/mips/Kconfig
> @@ -726,7 +726,6 @@ 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
> @@ -762,7 +761,6 @@ 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
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index 3bf72cd..183a165 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -727,7 +727,6 @@ config PCI
> default y if !40x && !CPM2 && !8xx && !PPC_83xx \
> && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
> default PCI_QSPAN if !4xx && !CPM2 && 8xx
> - select ARCH_SUPPORTS_MSI
> select GENERIC_PCI_IOMAP
> help
> Find out whether your system includes a PCI bus. PCI is the name of
> diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
> index 22f75b5..e9982a3 100644
> --- a/arch/s390/Kconfig
> +++ b/arch/s390/Kconfig
> @@ -428,7 +428,6 @@ menuconfig PCI
> bool "PCI support"
> default n
> depends on 64BIT
> - select ARCH_SUPPORTS_MSI
> select PCI_MSI
> help
> Enable PCI support.
> diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
> index a00cbd3..1570ad2 100644
> --- a/arch/sparc/Kconfig
> +++ b/arch/sparc/Kconfig
> @@ -52,7 +52,6 @@ config SPARC32
>
> config SPARC64
> def_bool 64BIT
> - select ARCH_SUPPORTS_MSI
> select HAVE_FUNCTION_TRACER
> select HAVE_FUNCTION_GRAPH_TRACER
> select HAVE_FUNCTION_GRAPH_FP_TEST
> diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
> index 24565a7..74dff90 100644
> --- a/arch/tile/Kconfig
> +++ b/arch/tile/Kconfig
> @@ -380,7 +380,6 @@ config PCI
> select PCI_DOMAINS
> select GENERIC_PCI_IOMAP
> select TILE_GXIO_TRIO if TILEGX
> - select ARCH_SUPPORTS_MSI if TILEGX
> select PCI_MSI if TILEGX
> ---help---
> Enable PCI root complex support, so PCIe endpoint devices can
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index b32ebf9..5db62ef 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -2014,7 +2014,6 @@ menu "Bus options (PCI etc.)"
> config PCI
> bool "PCI support"
> default y
> - select ARCH_SUPPORTS_MSI if (X86_LOCAL_APIC && X86_IO_APIC)
> ---help---
> Find out whether you have a PCI motherboard. PCI is the name of a
> bus system, i.e. the way the CPU talks to the other stuff inside
> diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
> index 81944fb..b6a99f7 100644
> --- a/drivers/pci/Kconfig
> +++ b/drivers/pci/Kconfig
> @@ -1,13 +1,9 @@
> #
> # PCI configuration
> #
> -config ARCH_SUPPORTS_MSI
> - bool
> -
> config PCI_MSI
> bool "Message Signaled Interrupts (MSI and MSI-X)"
> depends on PCI
> - depends on ARCH_SUPPORTS_MSI
> help
> This allows device drivers to enable MSI (Message Signaled
> Interrupts). Message Signaled Interrupts enable a device to
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