64-bit friendly generic sched_clock()
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b4 am [email protected]Versions newest first · linked by author and title
- v4 Latest17 patches 32 repliesIn review
- v26 patches 28 repliesSuperseded
- v14 patches 16 repliesSuperseded
Changes in v4 from the cover letter
* Move to use seqcount to fix issues with 64-bit cyc counters
* Move to hrtimer to fix underflow/overflow errors in wraparound calculation
* Use of 1 hour in clocks_calc_mult_shift
* Converted over drivers in drivers/clocksource
Patches in v4 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/17 | clocksource: Extract max nsec calculation into separate functioninclude/ kernel/ | +32 | 0 replies | |
| 2/17 | sched_clock: Use seqcount instead of rolling our ownkernel/ | +8 | 3 replies | |
| 3/17 | sched_clock: Use an hrtimer instead of timerkernel/ | +16 | 6 replies | |
| 4/17 | sched_clock: Add support for >32 bit sched_clockinclude/ kernel/ | +34 | 2 replies | |
| 5/17 | arch_timer: Move to generic sched_clock frameworkarch/ arch/ arch/ +1 more | +5 | 6 replies | |
| 6/17 | sched_clock: Remove sched_clock_func() hookinclude/ kernel/ | +1 | 0 replies | |
| 7/17 | clocksource: bcm2835: Switch to sched_clock_register()drivers/ | +2 | 3 replies | |
| 8/17 | ocksource: dbx500-prcmu: Switch to sched_clock_register()drivers/ | +2 | 1 reply | |
| 9/17 | clocksource: dw_apb_timer_of: Switch to sched_clock_register()drivers/ | +2 | 0 replies | |
| 10/17 | clocksource: mxs_timer: Switch to sched_clock_register()drivers/ | +2 | 2 replies | |
| 11/17 | clocksource: nomadik: Switch to sched_clock_register()drivers/ | +2 | 0 replies | |
| 12/17 | clocksource: samsung_pwm_timer: Switch to sched_clock_register()drivers/ | +2 | 0 replies | |
| 13/17 | clocksource: tegra: Switch to sched_clock_register()drivers/ | +2 | 1 reply | |
| 14/17 | clocksource: time-armada-370-xp: Switch to sched_clock_register()drivers/ | +2 | 1 reply | |
| 15/17 | clocksource: sirf: Switch to sched_clock_register() and use 64 bitsdrivers/ | +3 | 0 replies | |
| 16/17 | clocksource: vf_pit_timer: Switch to sched_clock_register()drivers/ | +2 | 0 replies | |
| 17/17 | sched_clock: Deprecate setup_sched_clock()include/ | +2 | 0 replies |
Reviews trailers per patch
6 of 17 patches have a Reviewed-by or Acked-by.
| Patch | Will Deacon | Stephen Warren | Shawn Guo | Christopher Covington | Gregory CLEMENT |
|---|---|---|---|---|---|
| Series | T-b | ||||
| 1/17 | |||||
| 2/17 | A-b | ||||
| 3/17 | |||||
| 4/17 | |||||
| 5/17 | A-b | ||||
| 6/17 | |||||
| 7/17 | A-b | ||||
| 8/17 | |||||
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| 10/17 | A-b | ||||
| 11/17 | |||||
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| 13/17 | A-b T-b | ||||
| 14/17 | A-b | ||||
| 15/17 | |||||
| 16/17 | |||||
| 17/17 |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes. Scroll the table sideways for all 5 reviewers.
Cover letter [PATCH v4 00/17] 64-bit friendly generic sched_clock()
This patchset adds support for 64 bit counters in the generic sched_clock code and converts drivers over to use it. Based on v3.11-rc1.
Changes since v3:
* Move to use seqcount to fix issues with 64-bit cyc counters
* Move to hrtimer to fix underflow/overflow errors in wraparound calculation
* Use of 1 hour in clocks_calc_mult_shift
* Converted over drivers in drivers/clocksource
Stephen Boyd (17):
clocksource: Extract max nsec calculation into separate function
sched_clock: Use seqcount instead of rolling our own
sched_clock: Use an hrtimer instead of timer
sched_clock: Add support for >32 bit sched_clock
arch_timer: Move to generic sched_clock framework
sched_clock: Remove sched_clock_func() hook
clocksource: bcm2835: Switch to sched_clock_register()
ocksource: dbx500-prcmu: Switch to sched_clock_register()
clocksource: dw_apb_timer_of: Switch to sched_clock_register()
clocksource: mxs_timer: Switch to sched_clock_register()
clocksource: nomadik: Switch to sched_clock_register()
clocksource: samsung_pwm_timer: Switch to sched_clock_register()
clocksource: tegra: Switch to sched_clock_register()
clocksource: time-armada-370-xp: Switch to sched_clock_register()
clocksource: sirf: Switch to sched_clock_register() and use 64 bits
clocksource: vf_pit_timer: Switch to sched_clock_register()
sched_clock: Deprecate setup_sched_clock()
arch/arm/kernel/arch_timer.c | 14 ---- arch/arm64/Kconfig | 1 + arch/arm64/kernel/time.c | 10 --- drivers/clocksource/arm_arch_timer.c | 4 ++ drivers/clocksource/bcm2835_timer.c | 4 +- drivers/clocksource/clksrc-dbx500-prcmu.c | 5 +- drivers/clocksource/dw_apb_timer_of.c | 4 +- drivers/clocksource/mxs_timer.c | 4 +- drivers/clocksource/nomadik-mtu.c | 4 +- drivers/clocksource/samsung_pwm_timer.c | 4 +- drivers/clocksource/tegra20_timer.c | 4 +- drivers/clocksource/time-armada-370-xp.c | 4 +- drivers/clocksource/timer-prima2.c | 6 +- drivers/clocksource/vf_pit_timer.c | 4 +- include/linux/clocksource.h | 2 + include/linux/sched_clock.h | 7 +- kernel/time/clocksource.c | 45 ++++++++----- kernel/time/sched_clock.c | 105 +++++++++++++++--------------- 18 files changed, 116 insertions(+), 115 deletions(-)
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