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* LICENSE: remove unnecessary (c) after CopyrightTom Hughes2019-06-191-1/+1
| | | | | | | | | | | | | | | | Ran the following command: git grep -l 'Copyright (c)' | \ xargs sed -i 's/Copyright (c)/Copyright/g' BRANCH=none BUG=none TEST=make buildall -j Change-Id: I6cc4a0f7e8b30d5b5f97d53c031c299f3e164ca7 Signed-off-by: Tom Hughes <tomhughes@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1663262 Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
* ec.tasklist: Consolidate duplicate commentsDaisuke Nojiri2019-04-081-9/+1
| | | | | | | | | | | | | | | | | | | | | | | It's simply a bad idea to describe a macro in multiple locations. It'll make it hard to change. It'll be difficult to keep all locations in sync. This patch replaces the comment duplicated in all ec.tasklist with a pointer to the CONFIG_TASK_LIST definition. The macro will be described in a single place (just like all/most other macros). Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> BUG=none BRANCH=none TEST=buildall Change-Id: Id658b9d68e742e4334c692b804d9c98c8de21313 Reviewed-on: https://chromium-review.googlesource.com/1551579 Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com> Tested-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-by: Jett Rink <jettrink@chromium.org>
* Handle multiple independent sources and types of CPU throttlingBill Richardson2013-09-111-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Depending on the system, the AP can be throttled in at least two different ways - politely, where it's just asked to slow down a bit, and forcefully using a hardware signal (like PROCHOT). In addition, the request for throttling can come from multiple tasks. This CL provides a single interface, specifying both the type of throttling desired and the source of the throttling request. For each type, any source can can start throttling, but all sources must agree before it stops. The changes are protected by a mutex, so that requests from multiple tasks don't interfere with each other. BUG=chrome-os-partner:20739,chromium:287985,chromium:287983 BRANCH=ToT TEST=manual Build-time test: cd src/platform/ec make BOARD=falco runtests Run-time test: Lower the temp thresholds, turn the fan off, and watch the throttling turn off and on as things heat up. For example, on the EC console: > temps PECI : 339 K = 66 C ECInternal : 324 K = 51 C G781Internal : 328 K = 55 C G781External : 327 K = 54 C > thermalset 0 341 343 sensor warn high halt fan_off fan_max name 0 341 343 383 333 363 PECI 1 0 0 0 0 0 ECInternal 2 0 0 0 0 0 G781Internal 3 0 0 0 0 0 G781External > > temps PECI : 339 K = 66 C ECInternal : 324 K = 51 C G781Internal : 328 K = 55 C G781External : 327 K = 54 C > > fanduty 0 Setting fan duty cycle to 0% > > apthrottle AP throttling type 0 is off (0x00000000) AP throttling type 1 is off (0x00000000) > [430.152000 thermal WARN] [430.152233 event set 0x00020000] [430.152497 event clear 0x00020000] [430.152714 ACPI query = 18] [430.152444 sci 0x00020000] [430.153051 set AP throttling type 0 to on (0x00000001)] > gpioget CPU_PROCHOT 0 CPU_PROCHOT > [436.153742 thermal HIGH] [436.153979 set AP throttling type 1 to on (0x00000001)] > gpioget CPU_PROCHOT 1* CPU_PROCHOT > [441.155319 thermal no longer high] [441.155587 set AP throttling type 1 to off (0x00000000)] [442.155604 thermal HIGH] [442.155841 set AP throttling type 1 to on (0x00000001)] [446.156623 thermal no longer high] [446.156890 set AP throttling type 1 to off (0x00000000)] temps PECI : 343 K = 70 C ECInternal : 324 K = 51 C G781Internal : 328 K = 55 C G781External : 327 K = 54 C > [447.156827 thermal HIGH] [447.157064 set AP throttling type 1 to on (0x00000001)] apthrottle AP throttling type 0 is on (0x00000001) AP throttling type 1 is on (0x00000001) > gpioget CPU_PROCHOT 1 CPU_PROCHOT > Now turn the fan back on: > fanauto > [456.159306 thermal no longer high] [456.159574 set AP throttling type 1 to off (0x00000000)] > apthrottle AP throttling type 0 is on (0x00000001) AP throttling type 1 is off (0x00000000) > temps PECI : 341 K = 68 C ECInternal : 324 K = 51 C G781Internal : 328 K = 55 C G781External : 327 K = 54 C > [473.163905 thermal no longer warn] [473.164168 event set 0x00040000] [473.164453 event clear 0x00040000] [473.164670 ACPI query = 19] [473.164379 sci 0x00040000] [473.164987 set AP throttling type 0 to off (0x00000000)] temps PECI : 340 K = 67 C ECInternal : 324 K = 51 C G781Internal : 328 K = 55 C G781External : 327 K = 54 C > > apthrottle AP throttling type 0 is off (0x00000000) AP throttling type 1 is off (0x00000000) > Change-Id: I9ee1491a637d7766395c71e57483fbd9177ea554 Signed-off-by: Bill Richardson <wfrichar@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/168802
* Completely new thermal/fan implementationBill Richardson2013-08-231-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problems with existing thermal control loop: * Not multi-board friendly. thermal.c only supports Link and needs refactoring. Temp thresholds and fan speeds are hard-coded. * Only the PECI temp is used to determine the fan speed. Other temp sensors are ignored. * Has confusing data structures. Values in the CPU temp thresholds array mix ACPI thresholds with fan step values. With this change, the thermal task monitors all temp sensors in order to perform two completely independent functions: Function one: Determine if the host needs to be throttled by or informed of any thermal events. For thermal events, each temp sensor will have three threshold levels. TEMP_HOST_WARN * When any sensor goes above this level, host_throttle_cpu(1) will be called to ask the CPU to slow itself down. * When all sensors drop below this level, host_throttle_cpu(0) will be called. * Exactly AT this level, nothing happens (this provides hysteresis). TEMP_HOST_HIGH * When any sensor goes above this level, chipset_throttle_cpu(1) will be called to slow the CPU down whether it wants to or not. * When all sensors drop below this level, chipset_throttle_cpu(0) will be called. * Exactly AT this level, nothing happens (this provides hysteresis). TEMP_HOST_SHUTDOWN * When any sensor is above this level, chipset_force_shutdown() will be called to halt the CPU. * Nothing turns the CPU back on again - the user just has to wait for things to cool off. Pressing the power button too soon will just trigger shutdown again as soon as the EC can read the host temp. Function two: Determine the amount of fan cooling needed For fan cooling, each temp sensor will have two levels. TEMP_FAN_OFF * At or below this temperature, no active cooling is needed. TEMP_FAN_MAX * At or above this temperature, active cooling should be running at maximum. The highest level of all temp sensors will be used to request the amount of active cooling needed. The function pwm_fan_percent_to_rpm() is invoked to convert the amount of cooling to the target fan RPM. The default pwm_fan_percent_to_rpm() function converts smoothly between the configured CONFIG_PWM_FAN_RPM_MIN and CONFIG_PWM_FAN_RPM_MAX for percentages between 1 and 100. 0% means "off". The default function probably provide the smoothest and quietest behavior, but individual boards can provide their own pwm_fan_percent_to_rpm() to implement whatever curves, hysteresis, feedback, or other hackery they wish. BUG=chrome-os-partner:20805 BRANCH=none TEST=manual Compile-time test with make BOARD=falco runtests On the EC console, the existing fan commands should work correctly: faninfo - display the fan state fanduty NUM - force the fan PWM to the specified percentage (0-100) fanset RPM - force the fan to the specified RPM fanset NUM% - force the fan to the specified percentage (0-100) between its configured minimum and maximum speeds from board.h (CONFIG_PWM_FAN_RPM_MIN and CONFIG_PWM_FAN_RPM_MAX) fanauto - let the EC control the fan automatically You can test the default pwm_fan_percent_to_rpm() with fanset 1% faninfo The fan should be turning at CONFIG_PWM_FAN_RPM_MIN. Let the EC control it automatically again with fanauto Also on the EC console, the thermal settings can be examined or changed: > temps PECI : 327 K = 54 C ECInternal : 320 K = 47 C G781Internal : 319 K = 46 C G781External : 318 K = 45 C > > thermalget sensor warn high shutdown fan_off fan_max name 0 373 387 383 333 363 PECI 1 0 0 0 0 0 ECInternal 2 0 0 0 0 0 G781Internal 3 0 0 0 0 0 G781External > > help thermalset Usage: thermalset sensor warn [high [shutdown [fan_off [fan_max]]]] set thermal parameters (-1 to skip) > > thermalset 2 -1 -1 999 sensor warn high shutdown fan_off fan_max name 0 373 387 383 333 363 PECI 1 0 0 0 0 0 ECInternal 2 0 0 999 0 0 G781Internal 3 0 0 0 0 0 G781External > From the host, ectool can be used to get and set these parameters with nearly identical commands: ectool thermalget ectool thermalset 2 -1 -1 999 Change-Id: Idb27977278f766826045fb7d41929953ec6b1cca Signed-off-by: Bill Richardson <wfrichar@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/66688 Reviewed-by: Randall Spangler <rspangler@chromium.org>
* Revert "Revert "Add thermal engine test""Vic Yang2013-05-171-1/+2
| | | | | | | | | | | | | | | This reverts commit 89e688a3325e91d3c59ac639f04f2c91019c9b10. Time-scaling is added back. We can run this test now. BUG=chrome-os-partner:19236 TEST=Pass the test. BRANCH=None Change-Id: Id3dcec6fc12489f5f0602de91c6560a8dfbef9af Signed-off-by: Vic Yang <victoryang@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/51551 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
* Revert "Add thermal engine test"Vic Yang2013-05-161-2/+1
| | | | | | | | | | | | | | | | Time-scale functionality is temporarily reverted and this test is now taking too long. Revert this test now. Will add it back when we solve the time-scale issue. This reverts commit d9cf88b35ad211d873f48b41fd985e22ff049b83 Change-Id: Id9ce1071eb2114dd6968d3df9f0bce395edaeef6 Reviewed-on: https://gerrit.chromium.org/gerrit/51482 Commit-Queue: Vic Yang <victoryang@chromium.org> Tested-by: Vic Yang <victoryang@chromium.org> Reviewed-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Stéphane Marchesin <marcheu@chromium.org> Tested-by: Stéphane Marchesin <marcheu@chromium.org>
* Add thermal engine testVic Yang2013-05-151-1/+2
| | | | | | | | | | | BUG=chrome-os-partner:19236 TEST=Pass the test. BRANCH=None Change-Id: I1c96437e1fb3492faa5352383f852dc1d2718ace Signed-off-by: Vic Yang <victoryang@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/51248 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
* Fix tasklist for testsVic Yang2013-04-101-8/+2
| | | | | | | | | | | | | | This removes all tasks defined in board tasklist and changes syntax to CONFIG_TEST_TASK_LIST and TASK_TEST. BUG=chrome-os-partner:18598 TEST=None BRANCH=None Change-Id: Ie56c8edcb1dbf0ba0d0426ffce2a525594602a91 Signed-off-by: Vic Yang <victoryang@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/47738 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
* Rename tasks to HOOKS and CHIPSETRandall Spangler2013-03-191-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | Rename tasks TICK -> HOOKS The hooks task handles more than just the TICK hook now. X86POWER -> CHIPSET GAIAPOWER -> CHIPSET Kinda kludgy that the name of the task controls which chipset source gets included. Change this to a CONFIG_CHIPSET_{X86,GAIA} #define to make it easier to support future chipsets. Also, rename the task function to chipset_task() so ec.tasklist is chipset-agnostic. No code changes, just renaming constants and functions. BUG=none BRANCH=none TEST=build bds,link,daisy,snow,spring Change-Id: I163ce1cd27b2d8d030d42bb1f7eb46b880c244fb Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/45805
* Switch temp sensor polling to use hooks instead of taskRandall Spangler2012-11-011-1/+0
| | | | | | | | | | | | | | This reduces memory / code size, and gets rid of ifdefs in temp_sensor.c. BUG=chrome-os-partner:15714 BRANCH=none TEST=boot system and run 'ectool temps all' every few seconds - ectool temps all The numbers should update over time. Change-Id: Idaac7e6e4cbc1d6689f5d3b607c623a5cc536a4f Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/36940
* Switch PWM to use HOOK_SECOND instead of its own taskRandall Spangler2012-10-301-1/+0
| | | | | | | | | | | | | BUG=chrome-os-partner:15714 BRANCH=none TEST=taskinfo no longer shows PWM task, and 'ectool pwmgetfanrpm' updates as fan speed changes. Change-Id: Ia23f52527c40c8117238ddc2ee4c023f59eba05a Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/36939 Reviewed-by: Simon Glass <sjg@chromium.org>
* Watchdog is reloaded by HOOK_TICK, not its own taskRandall Spangler2012-10-301-1/+1
| | | | | | | | | | | | | This reduces memory footprint. BUG=chrome-os-partner:15714 BRANCH=none TEST=system still boots; 'waitms 1500' prints watchdog error dump Change-Id: Ieb0248a34655514b03d919cc36c2b369691da716 Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/36937 Reviewed-by: Simon Glass <sjg@chromium.org>
* Switch to variable-size stacksRandall Spangler2012-09-091-9/+10
| | | | | | | | | | | | | | | | | | | | Increase stack size slightly for vboot hash task since the vboot SHA256 function allocates ~300 bytes of stack data. Reduce stack size for watchdog, power LED, and a few other tasks with simple call trees where we can be sure an error path isn't going to blow past the reduced stack. This frees up ~1KB of RAM on STM32. BUG=chrome-os-partner:13814 BRANCH=all TEST=boot system; shmem should show more unused RAM; taskinfo should show tasks still have unused stack Change-Id: I47d6b77564a0180d15d86667cc0566a8919b776e Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/32608 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
* Fix unit testsVic Yang2012-07-131-0/+1
| | | | | | | | | | | | | | Recently, there have been several changes to LPC and host command modules. This CL fixes unit tests after these changes. BUG=none TEST=All test passed. Change-Id: I263716899af78a61e324fcd0b2636b948617a264 Reviewed-on: https://gerrit.chromium.org/gerrit/27354 Reviewed-by: Rong Chang <rongchang@chromium.org> Tested-by: Vic Yang <victoryang@chromium.org> Commit-Ready: Vic Yang <victoryang@chromium.org>
* Fix compilation error of unit testsVic Yang2012-07-021-0/+1
| | | | | | | | | | | | | | VBOOTHASH task is needed for all unit tests to compile. Let's add it to all task lists. BUG=none TEST=all test build success. Change-Id: I378cd8bcdced193fe4751b33881f7d14ec88c935 Reviewed-on: https://gerrit.chromium.org/gerrit/26532 Reviewed-by: Rong Chang <rongchang@chromium.org> Commit-Ready: Vic Yang <victoryang@chromium.org> Tested-by: Vic Yang <victoryang@chromium.org>
* Thermal engine unit testVic Yang2012-06-251-0/+22
This test checks for the functionality of thermal engine. BUG=chrome-os-partner:10241 TEST=Test passed Disable thermal engine overheating warning and test failed Change-Id: Ideb0ff9ee4bd1617b11c56dfa2578a3f406381ff Reviewed-on: https://gerrit.chromium.org/gerrit/25370 Reviewed-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Randall Spangler <rspangler@chromium.org> Tested-by: Vic Yang <victoryang@chromium.org> Commit-Ready: Vic Yang <victoryang@chromium.org>