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path: root/drivers/gpu/drm/nouveau/nouveau_pm.c
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2012-04-19drm/nouveau/pm: don't read/write beyond end of stack bufferJim Meyering
NUL-terminate after strncpy. If the parameter "profile" has length 16 or more, then strncpy leaves "string" with no NUL terminator, so the following search for '\n' may read beyond the end of that 16-byte buffer. If it finds a newline there, then it will also write beyond the end of that stack buffer. Signed-off-by: Jim Meyering <meyering@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-13drm/nouveau/pm: fix oops if chipset has no pm support at allBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-03-13drm/nouveau/pm: extend profile interface for destroy/init/finiBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Martin Peres <martin.peres@labri.fr>
2012-03-13drm/nouveau/pm: rework to allow selecting separate profiles for ac/batteryBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Martin Peres <martin.peres@labri.fr>
2012-03-13drm/nouveau/pm: embed timings into perflvl structsBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Martin Peres <martin.peres@labri.fr>
2012-03-13drm/nouveau/pm: calculate memory timings at perflvl creation timeBen Skeggs
Statically generating the PFB register and MR values for each timing set turns out to be insufficient. There's at least one (so far) known piece of information which effects MR values which is stored in the perflvl entry on some chipsets (and in another table on later ones), which is disconnected from the timing table entries. After this change we will generate a timing set based on an input clock frequency instead, and have this data stored in the performance level data. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Martin Peres <martin.peres@labri.fr>
2012-03-13drm/nouveau/pm: readback boot perflvl *before* parsing vbiosBen Skeggs
We might want/need the boot data to generate the other perflevels. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Martin Peres <martin.peres@labri.fr>
2012-03-13drm/nouveau/pm: implement DDR2/DDR3/GDDR3/GDDR5 MR generation and validationRoy Spliet
Roy Spliet: - Implement according to specs - Simplify - Make array for mc latency registers Martin Peres: - squash and split all the commits from Roy - rework following Ben Skeggs comments - add a form of timings validation - store the initial timings for later use Ben Skeggs - merge slightly modified tidy-up patch with this one - remove perflvl-dropping logic for the moment Signed-off-by: Roy Spliet <r.spliet@student.tudelft.nl> Signed-off-by: Martin Peres <martin.peres@labri.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-03-13drm/nouveau/pm: avoid potential divide-by-zeroBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Martin Peres <martin.peres@labri.fr>
2012-03-13drm/nouveau/pm: improve the reclocking logs' readabilityMartin Peres
Signed-off-by: Martin Peres <martin.peres@labri.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-03-13drm/nouveau: move pwm_divisor to the nouveau_pm_fan structMartin Peres
Signed-off-by: Martin Peres <martin.peres@labri.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-03-13drm/nouveau/pm: restore fan speed after suspendMartin Peres
Signed-off-by: Martin Peres <martin.peres@labri.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-03-13drm/nouveau/pm: style fixesMartin Peres
Signed-off-by: Martin Peres <martin.peres@labri.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-01-10drm/nouveau/pm: fix build with HWMON offDave Airlie
Reported-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-21drm/nouveau/gpio: reimplement as nouveau_gpio.c, fixing a number of issuesBen Skeggs
- moves out of nouveau_bios.c and demagics the logical state definitions - simplifies chipset-specific driver interface - makes most of gpio irq handling common, will use for nv4x hpd later - api extended to allow both direct gpio access, and access using the logical function states - api extended to allow for future use of gpio extender chips - pre-nv50 was handled very badly, the main issue being that all GPIOs were being treated as output-only. - fixes nvd0 so gpio changes actually stick, magic reg needs bashing Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-12-21drm/nouveau: just pass gpio line to pwm_*, not entire gpio structBen Skeggs
We don't need more than the line id to determine the PWM controller, and the GPIO interfaces are about to change somewhat. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-12-21drm/nouveau/pm: fix missing volt changes when boot voltage is undefinedBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-12-21drm/nouveau/pm: change volt/fan before upclock, but after downclockBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-12-21drm/nouveau/pm: remove the older interfaces completelyBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-12-21drm/nv50/pm: s/PLL_UNK05/PLL_VDEC/Martin Peres
Following to "drm/nv50/pm: s/unk05/vdec/", let's rename the PLL to PLL_VDEC PLL names are purely indicative and are based on the most important engine it clocks. Signed-off-by: Martin Peres <martin.peres@labri.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-12-21drm/nv50/pm: s/unk05/vdec/Ben Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-12-21drm/nouveau/pm: remove defunct fanspeed_set/get from pm tableBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-12-21drm/nouveau/pm: introduce generic handler for on-chip fan controllerBen Skeggs
The handling of the internal pwm fan controller is similar enough between current chipsets that it makes sense to share the logic, and bugfixes :) No hw backends converted yet, will automatically fall-through to the "old" per-chipset fanspeed hooks for now. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-12-21drm/nouveau/pm: manual pwm fanspeed management for nv40+ boardsMartin Peres
Exposes the following sysfs entries: - fan0_input: read the rotational speed of the fan (poll a bit during 250ms) - pwm0: set the pwm duty cycle - pwm0_min/max: set the minimum/maximum pwm value v2 (Ben Skeggs): - nv50 pwm controller code removed in favour of other more complete code - FAN_RPM -> FAN_SENSE - merged FAN_SENSE readout into common code, not at all nv50-specific - protected fanspeed changes with perflvl_wr - formatting tidying - added some comments where things are shaky v3 (Martin Peres) - ensure duty min/max from thermal table are sane Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Martin Peres <martin.peres@ensi-bourges.fr>
2011-12-21drm/nv50/pm: add support for pwm fan controlBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-12-21drm/nouveau/pm: hook up fanspeed get/set if they're presentBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-09-20drm/nouveau: enable hwmon support when both nouveau/hwmon are built as modules.Ken Milmore
The nouveau hwmon temperature support currently only functions when hwmon is compiled into the kernel. There's no reason why this shouldn't also work when both hwmon and nouveau are modularised (as is the case with Slackware's stock kernels). Signed-off-by: Ken Milmore <ken.milmore@googlemail.com> Reviewed-by: Martin Peres <martin.peres@ensi-bourges.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-09-20drm/nouveau/pm: add hooks to get/set *all* clocks at onceBen Skeggs
This is probably better than having to tell the common code about all the clocks that exist on every chipset. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-09-20drm/nouveau/pm: allow voltage-only perflvl set, enable nvc0Ben Skeggs
Okay, my card didn't blow up. Lets turn it on! Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-09-20drm/nouveau/pm: show any info we can manage to glean on current perflvlBen Skeggs
Previously wouldn't show detected voltage if we couldn't figure out the clock frequencies.. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-09-20drm/nouveau/pm: add support for parsing perflvl voltage on fermi chipsBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-09-20drm/nouveau/pm: store voltage in microvoltsBen Skeggs
Instead of 10s of millivolts, to match fermi vbios. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-05-16drm/nouveau: Associate memtimings with performance levels on cards <= nv98Martin Peres
v2 (Ben Skeggs): fix ramcfg strap, and remove bogus handling of perf 0x40 Signed-off-by: Martin Peres <martin.peres@ensi-bourges.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-05-16drm/nouveau/pm: fix compilation failure when CONFIG_POWER_SUPPLY is not setMartin Peres
Signed-off-by: Martin Peres <martin.peres@ensi-bourges.fr> Reported-by: Stratos Psomadakis <psomas@ece.ntua.gr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-05-16drm/nouveau: name the boot perflvl "boot"Martin Peres
Signed-off-by: Martin Peres <martin.peres@ensi-bourges.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-02-17drm/nouveau: fix suspend/resume on GPUs that don't have PM supportBen Skeggs
This has been broken since 2.6.37, and fixes resume on a couple of fermi boards I have access to. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-02-02drm/nouveau: correctly pair hwmon_init and hwmon_finiLucas Stach
I broke this with my commit 07cfe0e7a820ecad078c04e9c2a102521709145d This fixes fdo #33434 Signed-off-by: Lucas Stach <dev@lynxeye.de> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-01-07drm/nouveau: fix hwmon device bindingLucas Stach
Bind the hwmon structs to nouveau device kobj. This makes sure the hwmon files are created in the device subdir in line with all other hwmon drivers. Signed-off-by: Lucas Stach <dev@lynxeye.de> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-12-03drm/nouveau: hook up acpi power supply change trackingBen Skeggs
Not used at all yet, but lets hook it up now anyway. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nouveau: Fix compilation issues in nouveau_pm when CONFIG_HWMON is not setMartin Peres
Signed-off-by: Martin Peres <martin.peres@ensi-bourges.fr> Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-10-05drm/nouveau: pass perflvl struct to clock_pre()Ben Skeggs
On certain boards, there's BIOS scripts and memory timings that need to be modified with the memclk. Just pass in the entire perflvl struct and let the chipset-specific code decide what to do. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-10-05drm/nouveau: Import initial memory timing workRoy Spliet
This isn't correct everywhere yet, but since we don't use the data yet it's perfectly safe to push in, and the information we gain from logs will help to fix the remaining issues. v2 (Ben Skeggs <bskeggs@redhat.com>): - fixed up formatting - free parsed timing info on takedown - switched timing table printout to debug loglevel Signed-off-by: Roy Spliet <r.spliet@student.tudelft.nl> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-09-24drm/nouveau: Misc cleanup of the PM code.Francisco Jerez
Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-09-24drm/nouveau: Refactor nouveau_temp_get() into engine pointers.Francisco Jerez
Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-09-24drm/nouveau: Add temperature support (vbios parsing, readings, hwmon)Martin Peres
Signed-off-by: Martin Peres <martin.peres@ensi-bourges.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-09-24drm/nouveau: Parse old style perf tables.Francisco Jerez
Used on nv17-nv28, they contain memory clocks and timings, only one of the table entries can actually be used, depending on the RAMCFG straps, and it's usually higher than the frequency programmed on boot by the BIOS. The memory timings listed in table version 0x1x are used to init the 0x12xx range but they aren't required for reclocking to work. Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-09-24drm/nouveau: restore perflvl on resume, and restore boot perflvl on unloadBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-09-24drm/nouveau: allow static performance level settingBen Skeggs
Guarded by a module parameter for the moment, read the code for the magic value which enables it. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-09-24drm/nouveau: import initial work on vbios performance table parsingBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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