[PATCH 1/2] ARM: mach-imx: convert logical CPU numbers to physical numbers
Sascha Hauer
s.hauer at pengutronix.de
Fri Nov 11 04:29:25 EST 2011
On Tue, Nov 08, 2011 at 02:34:53PM +0000, Will Deacon wrote:
> This patch uses the new cpu_logical_map() macro for converting logical
> CPU numbers into physical numbers when releasing CPUs during the SMP
> boot and CPU hotplug paths.
Shawn, is this one ok?
Sascha
>
> Cc: Sascha Hauer <s.hauer at pengutronix.de>
> Cc: Shawn Guo <shawn.guo at linaro.org>
> Signed-off-by: Will Deacon <will.deacon at arm.com>
> ---
> arch/arm/mach-imx/src.c | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-imx/src.c b/arch/arm/mach-imx/src.c
> index 36cacbd..63ba593 100644
> --- a/arch/arm/mach-imx/src.c
> +++ b/arch/arm/mach-imx/src.c
> @@ -14,6 +14,7 @@
> #include <linux/io.h>
> #include <linux/of.h>
> #include <linux/of_address.h>
> +#include <linux/smp.h>
> #include <asm/unified.h>
>
> #define SRC_SCR 0x000
> @@ -27,6 +28,7 @@ void imx_enable_cpu(int cpu, bool enable)
> {
> u32 mask, val;
>
> + cpu = cpu_logical_map(cpu);
> mask = 1 << (BP_SRC_SCR_CORE1_ENABLE + cpu - 1);
> val = readl_relaxed(src_base + SRC_SCR);
> val = enable ? val | mask : val & ~mask;
> @@ -35,6 +37,7 @@ void imx_enable_cpu(int cpu, bool enable)
>
> void imx_set_cpu_jump(int cpu, void *jump_addr)
> {
> + cpu = cpu_logical_map(cpu);
> writel_relaxed(BSYM(virt_to_phys(jump_addr)),
> src_base + SRC_GPR1 + cpu * 8);
> }
> --
> 1.7.4.1
>
>
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
More information about the linux-arm-kernel
mailing list