Viresh Kumar
8ea229511e
thermal: Add cooling device's statistics in sysfs ...
This extends the sysfs interface for thermal cooling devices and exposes
some pretty useful statistics. These statistics have proven to be quite
useful specially while doing benchmarks related to the task scheduler,
where we want to make sure that nothing has disrupted the test,
specially the cooling device which may have put constraints on the CPUs.
The information exposed here tells us to what extent the CPUs were
constrained by the thermal framework.
The write-only "reset" file is used to reset the statistics.
The read-only "time_in_state_ms" file shows the time (in msec) spent by the
device in the respective cooling states, and it prints one line per
cooling state.
The read-only "total_trans" file shows single positive integer value
showing the total number of cooling state transitions the device has
gone through since the time the cooling device is registered or the time
when statistics were reset last.
The read-only "trans_table" file shows a two dimensional matrix, where
an entry <i,j> (row i, column j) represents the number of transitions
from State_i to State_j.
This is how the directory structure looks like for a single cooling
device:
$ ls -R /sys/class/thermal/cooling_device0/
/sys/class/thermal/cooling_device0/:
cur_state max_state power stats subsystem type uevent
/sys/class/thermal/cooling_device0/power:
autosuspend_delay_ms runtime_active_time runtime_suspended_time
control runtime_status
/sys/class/thermal/cooling_device0/stats:
reset time_in_state_ms total_trans trans_table
This is tested on ARM 64-bit Hisilicon hikey620 board running Ubuntu and
ARM 64-bit Hisilicon hikey960 board running Android.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2018-04-02 21:49:01 +08:00
can: dev: Add support for limiting configured bitrate
2018-01-16 15:11:32 +01:00
firmware /meson
The is the bulk of GPIO changes for the v4.16 kernel cycle.
2018-01-31 12:25:27 -08:00
Staging/IIO patches for 4.16-rc1
2018-02-01 09:51:57 -08:00
lockd: convert nlm_rqst.a_count from atomic_t to refcount_t
2018-01-14 23:06:30 -05:00
RTC for 4.16
2018-02-02 14:19:19 -08:00
Second pull request for 4.16 merge window
2018-02-06 11:09:45 -08:00
mmc: slot-gpio: add a helper to check capability of GPIO WP detection
2018-01-18 09:08:56 +01:00
Core changes:
2018-01-29 09:58:36 +01:00
mux: add SPDX identifiers to all mux source files
2018-01-09 16:51:44 +01:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2018-01-31 14:31:10 -08:00
arm_pmu: acpi: request IRQs up-front
2018-02-20 11:34:54 +00:00
pinctrl: remove include file from <linux/device.h>
2018-02-03 12:10:09 -08:00
platform-drivers-x86 for v4.16-1
2018-02-06 15:30:52 -08:00
regulator: add PM suspend and resume hooks
2018-01-26 14:43:55 +00:00
Merge branch 'akpm' (patches from Andrew)
2018-02-22 10:45:46 -08:00
ARM: SoC driver updates for 4.16
2018-02-01 16:35:31 -08:00
NFS client bugfixes and latency improvements for Linux 4.16
2018-02-09 14:55:30 -08:00
usb: renesas_usbhs: Add support for RZ/A1
2018-01-09 16:18:50 +01:00
device property: Constify device_get_match_data()
2018-02-12 10:41:11 +01:00
sched/cpufreq: Remove arch_scale_freq_capacity()'s 'sd' parameter
2018-01-10 12:53:34 +01:00
arm/arm64: smccc: Implement SMCCC v1.1 inline primitive
2018-02-06 22:54:15 +00:00
firmware: arm_sdei: Add driver for Software Delegated Exceptions
2018-01-13 10:44:56 +00:00
scsi: ata: enhance the definition of SET MAX feature field value
2018-01-10 23:25:08 -05:00
lockdep: Convert some users to const
2018-01-18 11:56:49 +01:00
block: display the correct diskname for bio
2018-03-01 08:41:25 -07:00
lib: optimize cpumask_next_and()
2018-02-06 18:32:44 -08:00
blkcg: simplify statistic accumulation code
2018-01-16 08:56:36 -07:00
blk-mq: rename blk_mq_hw_ctx->queue_rq_srcu to ->srcu
2018-01-09 09:31:15 -07:00
blk-mq: introduce BLK_STS_DEV_RESOURCE
2018-01-30 20:18:28 -07:00
block: fix a typo in comment of BLK_MQ_POLL_STATS_BKTS
2018-02-15 08:27:06 -07:00
bpf: offload: report device information about offloaded maps
2018-01-18 22:54:25 +01:00
bpf: export function to write into verifier log buffer
2018-01-10 13:49:36 +01:00
for-linus-20180204
2018-02-04 11:16:35 -08:00
build_bug.h: remove BUILD_BUG_ON_NULL()
2018-02-06 18:32:46 -08:00
block: bounce: don't access bio->bi_io_vec in copy_to_high_bio_irq
2018-01-06 09:18:00 -07:00
Merge branches 'clk-remove-asm-clkdev', 'clk-debugfs-fixes', 'clk-renesas' and 'clk-meson' into clk-next
2018-01-26 16:43:32 -08:00
MIPS fixes for 4.16-rc5
2018-03-08 10:03:12 -08:00
x86/retpoline: Support retpoline builds with Clang
2018-02-20 11:17:58 +01:00
Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-02-26 09:34:21 -08:00
bug.h: work around GCC PR82365 in BUG()
2018-02-21 15:35:43 -08:00
locking/lockdep: Remove cross-release leftovers
2018-01-08 17:30:45 +01:00
Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-01-14 09:51:25 -08:00
cpufreq: Add and use cpufreq_for_each_{valid_,}entry_idx()
2018-02-08 10:21:39 +01:00
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2018-02-02 09:50:51 -08:00
Merge branches 'pm-cpuidle' and 'pm-opp'
2018-02-15 12:01:53 +01:00
cpumask: Make for_each_cpu_wrap() available on UP as well
2018-02-16 10:40:24 +01:00
kernel/cpuset: current_cpuset_is_being_rebound can be boolean
2018-02-06 18:32:47 -08:00
kdump: write correct address of mem_section into vmcoreinfo
2018-01-13 10:42:48 -08:00
crash_dump: is_kdump_kernel can be boolean
2018-02-06 18:32:47 -08:00
lib/crc-ccitt: Add CCITT-FALSE CRC16 variant
2018-01-08 10:08:33 +00:00
crypto: hash - prevent using keyed hashes without setting key
2018-01-12 23:03:37 +11:00
dax: pass detailed error code from dax_iomap_fault()
2018-01-07 16:38:43 -05:00
vfs: factor out helpers d_instantiate_anon() and d_alloc_anon()
2018-01-24 11:25:59 +01:00
delayacct: Account blkio completion on the correct task
2018-01-16 03:29:36 +01:00
dm mpath: delay the retry of a request if the target responded as busy
2018-01-29 13:44:54 -05:00
pinctrl: remove include file from <linux/device.h>
2018-02-03 12:10:09 -08:00
dma-direct: reject too small dma masks
2018-01-15 09:35:15 +01:00
dma-mapping: fix a comment typo
2018-02-12 15:59:08 +00:00
Merge branch 'next-tpm' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2018-01-31 13:12:31 -08:00
block: Unexport elv_register_queue() and elv_unregister_queue()
2018-01-18 12:54:41 -07:00
error-injection: Add injectable error types
2018-01-12 17:33:38 -08:00
net: Extra '_get' in declaration of arch_get_platform_mac_address
2018-02-08 15:13:30 -05:00
eventfd: fold eventfd_ctx_get() into eventfd_ctx_fileget()
2018-01-06 13:47:20 -05:00
f2fs: support inode creation time
2018-01-25 14:10:39 -08:00
fbdev changes for v4.16:
2018-02-07 13:10:43 -08:00
vfs, fdtable: Prevent bounds-check bypass via speculative execution
2018-01-30 21:54:32 +01:00
bpf: make unknown opcode handling more robust
2018-01-26 16:42:05 -08:00
dax: fix vma_is_fsdax() helper
2018-02-26 12:32:42 -08:00
fscrypt: move fscrypt_symlink_data to fscrypt_private.h
2018-01-11 23:30:08 -05:00
fscrypt: remove 'ci' parameter from fscrypt_put_encryption_info()
2018-01-11 23:30:13 -05:00
fscrypt: remove 'ci' parameter from fscrypt_put_encryption_info()
2018-01-11 23:30:13 -05:00
init_task out-of-lining
2018-01-29 09:08:34 -08:00
device property: Constify device_get_match_data()
2018-02-12 10:41:11 +01:00
genhd: Fix BUG in blkdev_open()
2018-02-26 09:48:42 -07:00
include/linux/genl_magic_func.h: remove own BUILD_BUG_ON*() defines
2018-02-06 18:32:46 -08:00
hrtimer: Implement support for softirq based hrtimers
2018-01-16 09:51:22 +01:00
hugetlb, mbind: fall back to default policy if vma is NULL
2018-01-31 17:18:40 -08:00
i2c: add 'set_sda' to bus_recovery_info
2018-01-16 00:04:19 +01:00
idr: Add documentation
2018-02-06 16:41:29 -05:00
net/core: Add drop counters to VF statistics
2018-01-09 07:40:48 +02:00
tun/tap: use ptr_ring instead of skb_array
2018-01-09 10:56:10 -05:00
tuntap: fix for "tuntap: XDP transmission"
2018-01-10 15:52:49 -05:00
devinet_ioctl(): take copyin/copyout to caller
2018-01-24 19:13:45 -05:00
x86/retpoline: Support retpoline builds with Clang
2018-02-20 11:17:58 +01:00
Expand INIT_STRUCT_PID and remove
2018-01-17 11:30:16 +00:00
iommu/vt-d: Add a check for 5-level paging support
2018-01-17 15:02:50 +01:00
kernel/resource: iomem_is_exclusive can be boolean
2018-02-06 18:32:47 -08:00
irq/work: Improve the flag definitions
2018-01-08 19:43:15 +01:00
init_task out-of-lining
2018-01-29 09:08:34 -08:00
iversion: Rename make inode_cmp_iversion{+raw} to inode_eq_iversion{+raw}
2018-02-01 08:15:25 -05:00
jbd2: fix sphinx kernel-doc build warnings
2018-01-10 00:27:29 -05:00
jump_label: Explicitly disable jump labels in __init code
2018-02-21 16:54:05 +01:00
kallsyms: let print_ip_sym() print raw addresses
2018-02-06 18:32:45 -08:00
kasan: clean up KASAN_SHADOW_SCALE_SHIFT usage
2018-02-06 18:32:43 -08:00
Merge branch 'akpm' (patches from Andrew)
2018-02-22 10:45:46 -08:00
vfs/proc/kcore, x86/mm/kcore: Fix SMAP fault when dumping vsyscall user page
2018-02-13 09:15:58 +01:00
extable: Make init_kernel_text() global
2018-02-21 16:54:06 +01:00
error-injection: Separate error-injection from kprobe
2018-01-12 17:33:38 -08:00
kvm: fix warning for non-x86 builds
2018-02-24 01:43:47 +01:00
libfdt: remove unnecessary include directive from <linux/libfdt.h>
2018-01-11 14:39:07 -06:00
acpi: nfit: add persistent memory control flag for nd_region
2018-02-01 15:01:15 -07:00
livepatch: Remove immediate feature
2018-01-11 10:58:03 +01:00
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-01-30 10:44:56 -08:00
lib/lockref: __lockref_is_dead can be boolean
2018-02-06 18:32:47 -08:00
mm/memblock: memblock_is_map/region_memory can be boolean
2018-02-06 18:32:47 -08:00
mm: memcontrol: fix NR_WRITEBACK leak in memcg and system stats
2018-02-21 15:35:42 -08:00
mm: pass the vmem_altmap to memmap_init_zone
2018-01-08 11:46:23 -08:00
memremap: change devm_memremap_pages interface to use struct dev_pagemap
2018-01-08 11:46:23 -08:00
libnvdimm for 4.16
2018-02-06 10:41:33 -08:00
x86/mm, mm/hwpoison: Don't unconditionally unmap kernel 1:1 pages
2018-02-13 16:25:06 +01:00
mm: remove reference to PG_buddy
2018-01-31 17:18:38 -08:00
mm, mmu_notifier: annotate mmu notifiers with blockable invalidate callbacks
2018-01-31 17:18:38 -08:00
include/linux/mmzone.h: fix explanation of lower bits in the SPARSEMEM mem_map pointer
2018-01-31 17:18:39 -08:00
kernel/module: module_is_live can be boolean
2018-02-06 18:32:47 -08:00
locking/mutex: Add comment to __mutex_owner() to deter usage
2018-02-21 08:56:40 +01:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2018-01-31 14:31:10 -08:00
net/dim: Fix fixpoint divide exception in net_dim_stats_compare
2018-01-19 14:53:32 -05:00
bpf: fix null pointer deref in bpf_prog_test_run_xdp
2018-02-01 07:43:56 -08:00
netfilter: remove struct nf_afinfo and its helper functions
2018-01-08 18:11:02 +01:00
netfilter: reduce NF_MAX_HOOKS define
2018-01-08 18:01:12 +01:00
netfilter: move reroute indirection to struct nf_ipv6_ops
2018-01-08 18:10:53 +01:00
netfilter: move reroute indirection to struct nf_ipv6_ops
2018-01-08 18:10:53 +01:00
netlink: extack: avoid parenthesized string constant warning
2018-01-15 15:15:23 -05:00
NFS: Fix nfsstat breakage due to LOOKUPP
2018-01-14 23:06:29 -05:00
nospec: Include <asm/barrier.h> dependency
2018-02-17 08:40:59 +01:00
NTB: Fix UB/bug in ntb_mw_get_align()
2018-01-28 22:17:24 -05:00
nubus: Add support for the driver model
2018-01-16 16:47:29 +01:00
nvme-pci: clean up SMBSZ bit definitions
2018-01-17 17:55:14 +01:00
DeviceTree updates for 4.16:
2018-02-01 10:57:45 -08:00
of: Use SPDX license tag for DT files
2018-01-08 08:22:45 -06:00
of/fdt: use memblock_virt_alloc for early alloc
2018-01-08 08:24:34 -06:00
DeviceTree updates for 4.16:
2018-02-01 10:57:45 -08:00
of: Use SPDX license tag for DT files
2018-01-08 08:22:45 -06:00
iommu: Clean up of_iommu_init_fn
2018-01-17 15:25:50 +01:00
PCI: Move of_irq_parse_and_map_pci() declaration under OF_IRQ
2018-03-05 18:03:20 -06:00
of: Use SPDX license tag for DT files
2018-01-08 08:22:45 -06:00
of: Use SPDX license tag for DT files
2018-01-08 08:22:45 -06:00
mtd: onenand: omap2: Configure driver from DT
2018-01-12 16:41:15 +01:00
mm: remove PG_highmem description
2018-01-31 17:18:40 -08:00
mm: get 7% more pages in a pagevec
2018-01-31 17:18:37 -08:00
PCI: Remove NULL device handling from PCI DMA API
2018-01-17 18:05:51 -06:00
PCI: Add SPDX GPL-2.0 to replace GPL v2 boilerplate
2018-01-28 15:48:29 -06:00
PCI: Add SPDX GPL-2.0 to replace GPL v2 boilerplate
2018-01-28 15:48:29 -06:00
Merge branch 'pci/spdx' into next
2018-02-01 11:40:07 -06:00
PCI: Add SPDX GPL-2.0 to replace GPL v2 boilerplate
2018-01-28 15:48:29 -06:00
pci-v4.16-changes
2018-02-06 09:59:40 -08:00
PCI: Add SPDX GPL-2.0+ to replace GPL v2 or later boilerplate
2018-01-28 15:49:06 -06:00
wireless-drivers-next patches for 4.16
2018-02-08 15:32:25 -05:00
mm, dax: introduce pfn_t_special()
2018-01-19 16:50:53 -08:00
net: phy: Restore phy_resume() locking assumption
2018-02-27 14:32:09 -05:00
pipe: reject F_SETPIPE_SZ with size over UINT_MAX
2018-02-06 18:32:47 -08:00
PM / wakeup: Add device_set_wakeup_path() helper to control wakeup path
2018-01-09 13:09:17 +01:00
unify {de,}mangle_poll(), get rid of kernel-side POLL...
2018-02-11 14:37:22 -08:00
device property: Constify device_get_match_data()
2018-02-12 10:41:11 +01:00
firmware/psci: Expose SMCCC version through psci_ops
2018-02-06 22:54:11 +00:00
ptr_ring: prevent integer overflow when calculating size
2018-02-11 22:33:22 -05:00
idr: Remove idr_alloc_ext
2018-02-06 16:41:28 -05:00
Char/Misc driver patches for 4.16-rc1
2018-02-01 10:31:17 -08:00
remoteproc: Drop dangling find_rsc_table dummies
2018-01-15 09:30:00 -08:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2018-01-31 14:31:10 -08:00
- New Drivers
2018-01-29 10:59:24 -08:00
lib/scatterlist: Fix chaining support in sgl_alloc_order()
2018-01-19 12:31:03 -07:00
Merge branch 'akpm' (patches from Andrew)
2018-02-06 22:15:42 -08:00
vfs: do bulk POLL* -> EPOLL* replacement
2018-02-11 14:34:03 -08:00
locking/semaphore: Update the file path in documentation
2018-02-13 15:00:06 +01:00
seq_file: Introduce DEFINE_SHOW_ATTRIBUTE() helper macro
2018-02-07 12:50:21 +02:00
TTY/Staging driver updates for 4.16-rc1
2018-02-01 09:46:00 -08:00
More ACPI updates for v4.16-rc1
2018-02-09 09:44:25 -08:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-01-09 10:37:00 -05:00
shmem: rename functions that are memfd-related
2018-01-31 17:18:39 -08:00
signal: Remove unnecessary ifdefs now that there is only one struct siginfo
2018-01-12 14:34:49 -06:00
skb_array: use __ptr_ring_empty
2018-01-29 12:02:54 -05:00
net: make skb_gso_*_seglen functions private
2018-03-04 17:49:17 -05:00
usercopy: Allow strict enforcement of whitelists
2018-01-15 12:07:48 -08:00
usercopy: Prepare for usercopy whitelisting
2018-01-15 12:07:47 -08:00
usercopy: Prepare for usercopy whitelisting
2018-01-15 12:07:47 -08:00
sound: Remove unused register_sound_midi() and co
2018-01-11 17:05:23 +01:00
lockdep: Convert some users to const
2018-01-18 11:56:49 +01:00
stddef.h: Introduce sizeof_field()
2018-01-15 12:07:46 -08:00
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-01-31 09:25:20 -08:00
x86: hibernate: fix swsusp_arch_resume() prototype
2018-02-07 12:18:23 +01:00
mm, mlock, vmscan: no more skipping pagevecs
2018-02-21 15:35:42 -08:00
mm, page_vma_mapped: Drop faulty pointer arithmetics in check_pte()
2018-01-21 17:44:47 -08:00
swiotlb: add common swiotlb_map_ops
2018-01-15 09:35:45 +01:00
pci-v4.16-changes
2018-02-06 09:59:40 -08:00
locking: Introduce sync_core_before_usermode()
2018-02-05 21:34:50 +01:00
pipe, sysctl: remove pipe_proc_fn()
2018-02-06 18:32:47 -08:00
sysfs.h: Use octal permissions
2018-01-09 16:27:43 +01:00
bpf: Adds field bpf_sock_ops_cb_flags to tcp_sock
2018-01-25 16:41:14 -08:00
This pull request updates the previous tee-drv-dynamic-shm-for-v4.16 pull
2018-01-11 18:05:06 -08:00
thermal: Add cooling device's statistics in sysfs
2018-04-02 21:49:01 +08:00
tpm: Keep CLKRUN enabled throughout the duration of transmit_cmd()
2018-01-08 12:58:38 +02:00
tpm: add event log format version
2018-01-08 12:58:34 +02:00
tty: fix data race between tty_init_dev and flush of buf
2018-01-23 08:57:37 +01:00
usercopy: WARN() on slab cache usercopy region violations
2018-01-15 12:07:48 -08:00
uuid: cleanup <uapi/linux/uuid.h>
2018-02-06 18:32:44 -08:00
Revert "module: Add retpoline tag to VERMAGIC"
2018-01-24 09:00:05 -08:00
mm: remove unused pgdat_reclaimable_pages()
2018-01-31 17:18:37 -08:00
workqueue: Allow retrieval of current task's work struct
2018-02-16 22:24:25 +01:00
zswap: only save zswap header when necessary
2018-01-31 17:18:39 -08:00
