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

arm64: Move FP/ASIMD hwcap handling to common code

Browse Source 
The FP/ASIMD is detected in fpsimd_init(), which is built-in
unconditionally. Lets move the hwcap handling to the central place.

Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com>
Tested-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Suzuki K. Poulose
2015-10-19 14:24:53 +01:00
committed by Catalin Marinas
parent 37b01d53ce
commit fe80f9f2da
2 changed files with 7 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
arch/arm64/kernel/fpsimd.c
View File

@@ -332,21 +332,15 @@ static inline void fpsimd_hotplug_init(void) { }
*/
static int __init fpsimd_init(void)
{
u64 pfr = read_cpuid(ID_AA64PFR0_EL1);
if (pfr & (0xf << 16)) {
if (elf_hwcap & HWCAP_FP) {
fpsimd_pm_init();
fpsimd_hotplug_init();
} else {
pr_notice("Floating-point is not implemented\n");
return 0;
}
elf_hwcap |= HWCAP_FP;
if (pfr & (0xf << 20))
if (!(elf_hwcap & HWCAP_ASIMD))
pr_notice("Advanced SIMD is not implemented\n");
else
elf_hwcap |= HWCAP_ASIMD;
fpsimd_pm_init();
fpsimd_hotplug_init();
return 0;
}