[PATCH] pci: Add and use PCI_GENERIC_SETUP Kconfig entry

From: Palmer Dabbelt
Date: Mon Jun 26 2017 - 16:28:13 EST

We wanted to add RISC-V to the list of architectures that used the
generic PCI setup-irq.o inside the Makefile and it was suggested that
instead we define a Kconfig entry and use that.

I've done very minimal testing on this: I just checked to see that
an aarch64 defconfig still build setup-irq.o with the patch applied.
The intention is that this patch doesn't change the behavior of any
build.

Signed-off-by: Palmer Dabbelt <palmer@xxxxxxxxxxx>
Reviewed-by: James Hogan <james.hogan@xxxxxxxxxx>
Acked-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>
Acked-by: Richard Henderson <rth@xxxxxxxxxxx>
Acked-by: Vineet Gupta <vgupta@xxxxxxxxxxxx> [arch/arc]
---
arch/alpha/Kconfig | 1 +
arch/arc/Kconfig | 1 +
arch/arm/Kconfig | 1 +
arch/arm64/Kconfig | 1 +
arch/m68k/Kconfig.bus | 1 +
arch/mips/Kconfig | 1 +
arch/sh/Kconfig | 1 +
arch/sparc/Kconfig | 1 +
arch/tile/Kconfig | 1 +
arch/unicore32/Kconfig | 1 +
drivers/pci/Kconfig | 3 +++
drivers/pci/Makefile | 11 +----------
12 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 0e49d39ea74a..30f4e711f681 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -26,6 +26,7 @@ config ALPHA
select ODD_RT_SIGACTION
select OLD_SIGSUSPEND
select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
+ select PCI_GENERIC_SETUP
help
The Alpha is a 64-bit general-purpose processor designed and
marketed by the Digital Equipment Corporation of blessed memory,
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index a5459698f0ee..dd1f64858118 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -44,6 +44,7 @@ config ARC
select HAVE_GENERIC_DMA_COHERENT
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_LZMA
+ select PCI_GENERIC_SETUP

config MIGHT_HAVE_PCI
bool
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 4c1a35f15838..4f910c4c37b2 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -93,6 +93,7 @@ config ARM
select OF_RESERVED_MEM if OF
select OLD_SIGACTION
select OLD_SIGSUSPEND3
+ select PCI_GENERIC_SETUP
select PERF_USE_VMALLOC
select RTC_LIB
select SYS_SUPPORTS_APM_EMULATION
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index b2024db225a9..02d4676cb00e 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -110,6 +110,7 @@ config ARM64
select OF_EARLY_FLATTREE
select OF_RESERVED_MEM
select PCI_ECAM if ACPI
+ select PCI_GENERIC_SETUP
select POWER_RESET
select POWER_SUPPLY
select SPARSE_IRQ
diff --git a/arch/m68k/Kconfig.bus b/arch/m68k/Kconfig.bus
index 675b087198f6..bcab783f0487 100644
--- a/arch/m68k/Kconfig.bus
+++ b/arch/m68k/Kconfig.bus
@@ -61,6 +61,7 @@ config GENERIC_ISA_DMA
config PCI
bool "PCI support"
depends on M54xx
+ select PCI_GENERIC_SETUP
help
Enable the PCI bus. Support for the PCI bus hardware built into the
ColdFire 547x and 548x processors.
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 2828ecde133d..474a7c710686 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -70,6 +70,7 @@ config MIPS
select HAVE_EXIT_THREAD
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_COPY_THREAD_TLS
+ select PCI_GENERIC_SETUP

menu "Machine selection"

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index ee086958b2b2..90a98ac526fb 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -48,6 +48,7 @@ config SUPERH
select HAVE_ARCH_AUDITSYSCALL
select HAVE_FUTEX_CMPXCHG if FUTEX
select HAVE_NMI
+ select PCI_GENERIC_SETUP
help
The SuperH is a RISC processor targeted for use in embedded systems
and consumer electronics; it was also used in the Sega Dreamcast
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 5639c9fe5b55..24cea64104bd 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -424,6 +424,7 @@ config SPARC_LEON
depends on SPARC32
select USB_EHCI_BIG_ENDIAN_MMIO
select USB_EHCI_BIG_ENDIAN_DESC
+ select PCI_GENERIC_SETUP
---help---
If you say Y here if you are running on a SPARC-LEON processor.
The LEON processor is a synthesizable VHDL model of the
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 4583c0320059..451000db8c62 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -28,6 +28,7 @@ config TILE
select HAVE_PERF_EVENTS
select HAVE_SYSCALL_TRACEPOINTS
select MODULES_USE_ELF_RELA
+ select PCI_GENERIC_SETUP
select SYSCTL_EXCEPTION_TRACE
select SYS_HYPERVISOR
select USER_STACKTRACE_SUPPORT
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 0769066929c6..162a7d3def0c 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -18,6 +18,7 @@ config UNICORE32
select ARCH_WANT_FRAME_POINTERS
select GENERIC_IOMAP
select MODULES_USE_ELF_REL
+ select PCI_GENERIC_SETUP
help
UniCore-32 is 32-bit Instruction Set Architecture,
including a series of low-power-consumption RISC chip
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index e0cacb7b8563..72a1c4c65926 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -131,6 +131,9 @@ config PCI_HYPERV
The PCI device frontend driver allows the kernel to import arbitrary
PCI devices from a PCI backend to support PCI driver domains.

+config PCI_GENERIC_SETUP
+ bool
+
source "drivers/pci/hotplug/Kconfig"
source "drivers/pci/dwc/Kconfig"
source "drivers/pci/host/Kconfig"
diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile
index 462c1f5f5546..26f4710c88ec 100644
--- a/drivers/pci/Makefile
+++ b/drivers/pci/Makefile
@@ -31,16 +31,7 @@ obj-$(CONFIG_PCI_IOV) += iov.o
#
# Some architectures use the generic PCI setup functions
#
-obj-$(CONFIG_ALPHA) += setup-irq.o
-obj-$(CONFIG_ARC) += setup-irq.o
-obj-$(CONFIG_ARM) += setup-irq.o
-obj-$(CONFIG_ARM64) += setup-irq.o
-obj-$(CONFIG_UNICORE32) += setup-irq.o
-obj-$(CONFIG_SUPERH) += setup-irq.o
-obj-$(CONFIG_MIPS) += setup-irq.o
-obj-$(CONFIG_TILE) += setup-irq.o
-obj-$(CONFIG_SPARC_LEON) += setup-irq.o
-obj-$(CONFIG_M68K) += setup-irq.o
+obj-$(CONFIG_PCI_GENERIC_SETUP) += setup-irq.o

#
# ACPI Related PCI FW Functions
--
2.13.0

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