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

x86/vdso: Use generic VDSO clock mode storage

Browse Source 
Switch to the generic VDSO clock mode storage.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com> (VDSO parts)
Acked-by: Juergen Gross <jgross@suse.com> (Xen parts)
Acked-by: Paolo Bonzini <pbonzini@redhat.com> (KVM parts)
Link: https://lkml.kernel.org/r/20200207124403.152039903@linutronix.de
This commit is contained in:
Thomas Gleixner
2020-02-07 13:38:56 +01:00
parent 5d51bee725
commit b95a8a27c3
13 changed files with 46 additions and 63 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
arch/x86/include/asm/vdso/gettimeofday.h
View File

@@ -243,7 +243,7 @@ static u64 vread_hvclock(void)
static inline u64 __arch_get_hw_counter(s32 clock_mode)
{
if (likely(clock_mode == VCLOCK_TSC))
if (likely(clock_mode == VDSO_CLOCKMODE_TSC))
return (u64)rdtsc_ordered();
/*
* For any memory-mapped vclock type, we need to make sure that gcc
@@ -252,13 +252,13 @@ static inline u64 __arch_get_hw_counter(s32 clock_mode)
* question isn't enabled, which will segfault. Hence the barriers.
*/
#ifdef CONFIG_PARAVIRT_CLOCK
if (clock_mode == VCLOCK_PVCLOCK) {
if (clock_mode == VDSO_CLOCKMODE_PVCLOCK) {
barrier();
return vread_pvclock();
}
#endif
#ifdef CONFIG_HYPERV_TIMER
if (clock_mode == VCLOCK_HVCLOCK) {
if (clock_mode == VDSO_CLOCKMODE_HVCLOCK) {
barrier();
return vread_hvclock();
}

7
arch/x86/include/asm/vdso/vsyscall.h
View File

@@ -21,13 +21,6 @@ struct vdso_data *__x86_get_k_vdso_data(void)
}
#define __arch_get_k_vdso_data __x86_get_k_vdso_data
static __always_inline
int __x86_get_clock_mode(struct timekeeper *tk)
{
return tk->tkr_mono.clock->archdata.vclock_mode;
}
#define __arch_get_clock_mode __x86_get_clock_mode
/* The asm-generic header needs to be included after the definitions above */
#include <asm-generic/vdso/vsyscall.h>