ARM: 7293/1: logical_cpu_map: decouple CPU mapping from SMP
It turns out that the logical CPU mapping is useful even when !CONFIG_SMP
for manipulation of devices like interrupt and power controllers when
running a UP kernel on a CPU other than 0. This can happen when kexecing
a UP image from an SMP kernel.
In the future, multi-cluster systems running AMP configurations will
require something similar for mapping cluster IDs, so it makes sense to
decouple this logic in preparation for this support.
Acked-by: Yang Bai <hamo.by@gmail.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reported-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-imx/src.c b/arch/arm/mach-imx/src.c
index 29bd124..e15f155 100644
--- a/arch/arm/mach-imx/src.c
+++ b/arch/arm/mach-imx/src.c
@@ -15,6 +15,7 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/smp.h>
+#include <asm/smp_plat.h>
#define SRC_SCR 0x000
#define SRC_GPR1 0x020
@@ -24,10 +25,6 @@
static void __iomem *src_base;
-#ifndef CONFIG_SMP
-#define cpu_logical_map(cpu) 0
-#endif
-
void imx_enable_cpu(int cpu, bool enable)
{
u32 mask, val;