On 23/05/16 13:41, Chen-Yu Tsai wrote:
Some common PSCI functions are written in assembly, but it should be possible to use them from C code.
Add function declarations for C code to consume.
Signed-off-by: Chen-Yu Tsai wens@csie.org
arch/arm/include/asm/psci.h | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/arch/arm/include/asm/psci.h b/arch/arm/include/asm/psci.h index 128a606444fe..5db33562a299 100644 --- a/arch/arm/include/asm/psci.h +++ b/arch/arm/include/asm/psci.h @@ -33,6 +33,14 @@ #define ARM_PSCI_RET_DENIED (-3)
#ifndef __ASSEMBLY__ +#include <asm/types.h> +#include <linux/compiler.h>
+void __section("._secure.text") psci_cpu_entry(void); +u32 __section("._secure.text") psci_get_cpu_id(void); +u32 __section("._secure.text") psci_get_cpu_stack_top(int cpu); +void __section("._secure.text") psci_cpu_off_common(void);
I may be wrong, but I don't think the section matters for prototypes. It is only at the location where the code is actually generated that it is actually useful.
Thanks,
M.