Channagoud Kadabi
dca86b7f36
kernel: time: Fix accuracy for low resolution timer ...
timer wheel calculates the index for any timer based on the expiry
value and level granularity of the timer. Due to the level granularity
timer will not fire at the exact time instead expire at a time value
expires + granularity. This is done in the timer code when the index for
each timer is calculated based on the expiry and granularity at each
level:
expires = (expires + LVL_GRAN(lvl)) >> LVL_SHIFT(lvl);
For devfreq drivers the requirement is to fire the timer at the exact
time. If the timer does not expire at the exact time then it'll take
much longer to react and increase the device frequency. Devfreq driver
registers timer for 10ms expiry and due to slack in timer code the
expirty happens at 20 ms. For eg: Frame rendering time is 16ms.
If devfreq driver reacts after 20ms instead of 10ms, that's
way past a frame rendering time.
Timers with 10ms to 630ms expiry fall under level 0, to overcome the
granularity issue for level 0 with low expirty values do not add the
granularity by introducing a new function calc_index_min_granularity.
Change-Id: I60f6f4394de4b5f409829de9734645e1a0d7659e
Signed-off-by: Channagoud Kadabi <ckadabi@codeaurora.org>
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
[eberman@codeaurora.org: simplify to one function]
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
2020-08-12 10:53:10 -07:00
This is the 5.4.56 stable release
2020-08-05 11:19:16 +02:00
Merge android11-5.4.54 ( 261a54f) into msm-5.4
2020-08-04 11:54:06 -07:00
kgdb: Avoid suspicious RCU usage warning
2020-07-09 09:37:51 +02:00
Merge android-5.4-stable.45 ( a9a13ee) into msm-5.4
2020-07-09 17:51:24 -07:00
Merge android11-5.4.54 ( 261a54f) into msm-5.4
2020-08-04 11:54:06 -07:00
kernel/gcov/fs.c: gcov_seq_next() should increase position index
2020-04-29 16:33:00 +02:00
Merge android11-5.4.54 ( 261a54f) into msm-5.4
2020-08-04 11:54:06 -07:00
ANDROID: kallsyms: increase KSYM_NAME_LEN
2020-08-04 19:33:41 +00:00
Merge android-5.4-stable.45 ( a9a13ee) into msm-5.4
2020-07-09 17:51:24 -07:00
Merge android11-5.4.54 ( 261a54f) into msm-5.4
2020-08-04 11:54:06 -07:00
Merge android-5.4-stable.45 ( a9a13ee) into msm-5.4
2020-07-09 17:51:24 -07:00
Merge android-5.4.24 ( ce5de62) into msm-5.4
2020-04-14 08:25:29 -07:00
Merge "sched/walt: Improve the scheduler"
2020-08-06 00:53:20 -07:00
kernel: time: Fix accuracy for low resolution timer
2020-08-12 10:53:10 -07:00
Merge android11-5.4.52 ( c7725ae) into msm-5.4
2020-07-27 01:21:35 -07:00
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:30:59 +02:00
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:30:59 +02:00
audit_get_nd(): don't unlock parent too early
2019-11-10 11:56:55 -05:00
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:30:59 +02:00
ANDROID: cfi: fix export symbol types
2020-04-29 19:12:47 +02:00
kernel/configs: Replace GPL boilerplate code with SPDX identifier
2019-07-30 18:34:15 +02:00
Merge android-5.4-stable.50 ( a200ad5) into msm-5.4
2020-07-20 19:22:16 -07:00
kernel/cpu_pm: Fix uninitted local in cpu_pm
2020-06-22 09:31:22 +02:00
keys: Fix request_key() cache
2020-01-17 19:48:42 +01:00
kernel/elfcore.c: include proper prototypes
2019-09-25 17:51:39 -07:00
Merge android-5.4-stable.50 ( a200ad5) into msm-5.4
2020-07-20 19:22:16 -07:00
extable: Add function to search only kernel exception table
2019-08-21 22:23:48 +10:00
Merge android-5.4-stable.45 ( a9a13ee) into msm-5.4
2020-07-09 17:51:24 -07:00
Revert "libata, freezer: avoid block device removal while system is frozen"
2019-10-06 09:11:37 -06:00
futex: Unbreak futex hashing
2020-03-25 08:25:58 +01:00
kheaders: substituting --sort in archive creation
2019-10-17 09:08:19 +09:00
hung task: check specific tasks for long uninterruptible sleep state
2020-03-23 15:44:56 -07:00
jump_label: Don't warn on __exit jump entries
2019-08-29 15:10:10 +01:00
Merge 5.4.52 into android11-5.4
2020-07-16 09:48:45 +02:00
sched/rt, Kconfig: Unbreak def/oldconfig with CONFIG_PREEMPT=y
2019-07-22 18:05:11 +02:00
UPSTREAM: kcov: remote coverage support
2020-01-13 18:54:56 +00:00
kexec_load: Disable at runtime if the kernel is locked down
2019-08-19 21:54:15 -07:00
kexec: bail out upon SIGKILL when allocating memory.
2019-09-25 17:51:40 -07:00
kexec_elf: support 32 bit ELF files
2019-09-06 23:58:44 +02:00
Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2019-09-28 08:14:15 -07:00
kmod: make request_module() return an error when autoloading is disabled
2020-04-17 10:50:22 +02:00
kprobes: Do not expose probe addresses to non-CAP_SYSLOG
2020-07-16 08:16:45 +02:00
kthread: Do not preempt current task if it is going to call schedule()
2020-05-11 13:48:31 +05:30
ANDROID: add support for Clang's Control Flow Integrity (CFI)
2019-11-27 12:49:12 -08:00
ANDROID: GKI: do not export symbol_get/put()
2020-07-17 10:51:18 +02:00
MODSIGN: Export module signature definitions
2019-08-05 18:39:56 -04:00
MODSIGN: Export module signature definitions
2019-08-05 18:39:56 -04:00
x86/mm: split vmalloc_sync_all()
2020-03-25 08:25:58 +01:00
padata: add separate cpuhp node for CPUHP_PADATA_DEAD
2020-06-17 16:40:22 +02:00
panic: ensure preemption is disabled during panic()
2019-10-07 15:47:19 -07:00
lockdown: Lock down module params that specify hardware parameters (eg. ioport)
2019-08-19 21:54:16 -07:00
pid: move pidfd_get_pid() to pid.c
2020-06-18 18:01:49 +05:30
ptrace: reintroduce usage of subjective credentials in ptrace_has_cap()
2020-01-23 08:22:36 +01:00
FROMLIST: reboot: Export reboot_mode
2019-11-25 11:46:31 -08:00
kernel/relay.c: handle alloc_percpu returning NULL in relay_open
2020-06-07 13:18:47 +02:00
/dev/mem: Revoke mappings when a driver claims the region
2020-06-24 17:50:35 +02:00
ANDROID: scs: fix recursive spinlock in scs_check_usage
2020-06-09 23:39:55 -07:00
seccomp: Add missing compat_ioctl for notify
2020-04-17 10:50:09 +02:00
Merge android-5.4-stable.45 ( a9a13ee) into msm-5.4
2020-07-09 17:51:24 -07:00
smp: Wake up all idle CPUs when suspending to idle
2020-01-15 14:35:44 -08:00
trace: Add trace points for tasklet entry/exit
2020-02-25 07:37:13 -08:00
stacktrace: Don't skip first entry on noncurrent tasks
2019-11-04 21:19:25 +01:00
stop_machine: Avoid potential race behaviour
2019-10-17 12:47:12 +02:00
Merge Linus's 5.4-rc1-prerelease branch into android-mainline
2019-09-20 16:07:54 -07:00
mm/madvise: introduce process_madvise() syscall: an external memory hinting API
2020-06-18 17:55:54 +05:30
sched/fair: Add policy for restricting prefer_spread to newly idle balance
2020-08-05 07:14:01 +05:30
taskstats: extended taskstats2 with acct fields
2020-06-22 14:26:19 +05:30
torture: Remove exporting of internal functions
2019-08-01 14:30:22 -07:00
umh: fix memory leak on execve failure
2020-05-20 08:20:13 +02:00
Revert "ANDROID: proc: Add /proc/uid directory"
2020-03-06 20:23:08 +00:00
Merge android-5.4.24 ( ce5de62) into msm-5.4
2020-04-14 08:25:29 -07:00
Merge android-5.4-stable.32 ( 724ffa0) into msm-5.4
2020-06-24 11:39:32 -07:00
dca86b7f36