ARM: SMP: Refactor Kconfig to be more maintainable
Making SMP depend on (huge list of MACH_ and ARCH_ configs) is
bothersome to maintain and likely to lead to merge conflicts.
This patch moves the knowledge of which platforms are SMP-capable
to the individual machines. To enable this, a new HAVE_SMP config
option is introduced to allow machines to indicate that they can
run in a SMP configuration.
Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
(for nomadik, ux500)
Acked-by: Tony Lindgren <tony@atomide.com>
(for omap)
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
(for exynos)
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
(for imx)
Acked-by: Olof Johansson <olof@lixom.net>
(for tegra)
diff --git a/arch/arm/mach-realview/Kconfig b/arch/arm/mach-realview/Kconfig
index 3dd620f8..c593be4 100644
--- a/arch/arm/mach-realview/Kconfig
+++ b/arch/arm/mach-realview/Kconfig
@@ -12,6 +12,7 @@
bool "Support Multicore Cortex-A9 Tile"
depends on MACH_REALVIEW_EB
select CPU_V7
+ select HAVE_SMP
select MIGHT_HAVE_CACHE_L2X0
help
Enable support for the Cortex-A9MPCore tile fitted to the
@@ -22,6 +23,7 @@
depends on MACH_REALVIEW_EB
select CPU_V6K
select ARCH_HAS_BARRIERS if SMP
+ select HAVE_SMP
select MIGHT_HAVE_CACHE_L2X0
help
Enable support for the ARM11MPCore tile fitted to the Realview(R)
@@ -41,6 +43,7 @@
select CPU_V6K
select ARM_GIC
select HAVE_PATA_PLATFORM
+ select HAVE_SMP
select MIGHT_HAVE_CACHE_L2X0
select ARCH_HAS_BARRIERS if SMP
help
@@ -82,6 +85,7 @@
bool "Support RealView(R) Platform Baseboard Explore"
select ARM_GIC
select HAVE_PATA_PLATFORM
+ select HAVE_SMP
select MIGHT_HAVE_CACHE_L2X0
select ARCH_SPARSEMEM_ENABLE if CPU_V7 && !REALVIEW_HIGH_PHYS_OFFSET
select ZONE_DMA if SPARSEMEM