xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ARM: keystone: Move CPU bringup code to dedicated asm file

Browse Source 
Because of inline asm usage in platsmp.c, smc instruction
creates build failure for ARM V6+V7 build where as using instruction
encoding for smc breaks the thumb2 build.

So move the code snippet to separate asm file and mark
it with 'armv7-a$(plus_sec)' to avoid any build issues.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Santosh Shilimkar
2013-06-21 18:54:47 -04:00
committed by Arnd Bergmann
parent 24e860fbfd
commit 3aae7ab0f1
4 changed files with 43 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
arch/arm/mach-keystone/platsmp.c
View File

@@ -30,18 +30,9 @@ static int __cpuinit keystone_smp_boot_secondary(unsigned int cpu,
pr_debug("keystone-smp: booting cpu %d, vector %08lx\n",
cpu, start);
asm volatile (
"mov r0, #0\n" /* power on cmd */
"mov r1, %1\n" /* cpu */
"mov r2, %2\n" /* start */
".inst 0xe1600070\n" /* smc #0 */
"mov %0, r0\n"
: "=r" (error)
: "r"(cpu), "r"(start)
: "cc", "r0", "r1", "r2", "memory"
);
pr_debug("keystone-smp: monitor returned %d\n", error);
error = keystone_cpu_smc(KEYSTONE_MON_CPU_UP_IDX, cpu, start);
if (error)
pr_err("CPU %d bringup failed with %d\n", cpu, error);
return error;
}