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parisc: Use cr16 interval timers unconditionally on qemu

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commit 5ffa851885 upstream.

When running on qemu we know that the (emulated) cr16 cpu-internal
clocks are syncronized. So let's use them unconditionally on qemu.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 4.14+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Helge Deller 2018-01-12 22:44:00 +01:00 committed by Greg Kroah-Hartman
parent 6b218ed6bd
commit 90c3f0d360
2 changed files with 3 additions and 1 deletions
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2
arch/parisc/include/asm/processor.h
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@ -316,6 +316,8 @@ extern int _parisc_requires_coherency;
#define parisc_requires_coherency() (0)
#endif
extern int running_on_qemu;
#endif /* __ASSEMBLY__ */
#endif /* __ASM_PARISC_PROCESSOR_H */

2
arch/parisc/kernel/time.c
View file

@ -248,7 +248,7 @@ static int __init init_cr16_clocksource(void)
* different sockets, so mark them unstable and lower rating on
* multi-socket SMP systems.
*/
if (num_online_cpus() > 1) {
if (num_online_cpus() > 1 && !running_on_qemu) {
int cpu;
unsigned long cpu0_loc;
cpu0_loc = per_cpu(cpu_data, 0).cpu_loc;