Peter Zijlstra 9397fa2ea3 clocksource: hyper-v: Adjust hv_read_tsc_page_tsc() to avoid special casing U64_MAX ...

Currently hv_read_tsc_page_tsc() (ab)uses the (valid) time value of
U64_MAX as an error return. This breaks the clean wrap-around of the
clock.

Modify the function signature to return a boolean state and provide
another u64 pointer to store the actual time on success. This obviates
the need to steal one time value and restores the full counter width.

Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Reviewed-by: Michael Kelley <[email protected]>
Tested-by: Michael Kelley <[email protected]>  # Hyper-V
Link: https://lore.kernel.org/r/[email protected]

2023-06-05 21:11:07 +02:00

..

arm_arch_timer.h

KVM: arm64: timers: Use CNTPOFF_EL2 to offset the physical timer

2023-03-30 19:01:09 +01:00

hyperv_timer.h

clocksource: hyper-v: Adjust hv_read_tsc_page_tsc() to avoid special casing U64_MAX

2023-06-05 21:11:07 +02:00

pxa.h

…

samsung_pwm.h

clocksource/drivers/samsung_pwm: Constify passed structure

2021-06-04 10:12:11 +02:00

timer-davinci.h

…

timer-goldfish.h

clocksource/drivers: Add a goldfish-timer clocksource

2022-04-11 11:48:01 +02:00

timer-riscv.h

RISC-V: KVM: Add timer functionality

2021-10-04 16:07:16 +05:30

timer-ti-dm.h

clocksource/drivers/timer-ti-dm: Make timer_get_irq static

2022-12-02 13:16:46 +01:00

timer-xilinx.h

pwm: Add support for Xilinx AXI Timer

2022-04-22 18:30:44 +02:00