WARNING: very minimally tested
In general you should not need this tool. Its primary purpose is for
benchmarking, and for debugging performance issues.
For many kernel releases now sysfs has supported reading and writing the GPU
frequency. Therefore, this tool provides no new functionality. What it does
provide is an easy to package (for distros) tool that handles the most common
scenarios.
v2:
Get rid of -f from the usage message (Jordan)
Add space before [-s (Jordan)
Add a -c/--custom example (Jordan)
Add a setting for resetting to hardware default (Ken)
Replicate examples in commit message in the source code. (me)
v3:
Its not It's (me)
Add --help/-h to usage
Add Version + man page
Rename tool to intel_gpu_frequency, from intel_frequency
Remove "sudo" from the examples
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Cc: Kenneth Graunke <kenneth@whitecape.org>
Here are some sample usages:
$ intel_gpu_frequency --get=cur,min,max,eff
cur: 200 MHz
min: 200 MHz
RP1: 200 MHz
max: 1200 MHz
$ intel_gpu_frequency -g
cur: 200 MHz
min: 200 MHz
RP1: 200 MHz
max: 1200 MHz
$ intel_gpu_frequency -geff
RP1: 200 MHz
$ intel_gpu_frequency --set min=300
$ intel_gpu_frequency --get min
cur: 300 MHz
min: 300 MHz
RP1: 200 MHz
max: 1200 MHz
$ intel_gpu_frequency --custom max=900
$ intel_gpu_frequency --get max
cur: 300 MHz
min: 300 MHz
RP1: 200 MHz
max: 900 MHz
$ intel_gpu_frequency --max
$ intel_gpu_frequency -g
cur: 1200 MHz
min: 1200 MHz
RP1: 200 MHz
max: 1200 MHz
$ intel_gpu_frequency -e
$ intel_gpu_frequency -g
cur: 200 MHz
min: 200 MHz
RP1: 200 MHz
max: 200 MHz
$ intel_gpu_frequency --max
$ intel_gpu_frequency -g
cur: 1200 MHz
min: 1200 MHz
RP1: 200 MHz
max: 1200 MHz
$ intel_gpu_frequency --min
$ intel_gpu_frequency -g
cur: 200 MHz
min: 200 MHz
RP1: 200 MHz
max: 200 MHz
They're now igt tests, and so if you blindly run lib/igt.cocci with
spatch on tests/*c they get mangled. Move them away, but still keep
them as noinst targets.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
intel_iosf_sb_{read,write} provide the same functionality.
intel_dpio_{read,write} are still left in place since they use a
ifferent opcode to do the register access. Need to verify if
both opcodes work.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
intel_poller can be used to poll various display registers
(IIR,scanline/pixel/flip/frame counter, live address, etc.).
It can be used to determine eg. at which scanline or pixel count certain
events occur.
v2: s/intel_poller/intel_display_poller/
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Add generic tools to poke at IOSF sideband. The user needs to
manually specify SB port as well as the register.
TODO: Maybe add symbolic names for the units? Would avoid having
to trawl the docs for the magic hex value.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
This tool only supports ILK. I take the fact that nobody has felt the
need to update for later platform a sign it's not very useful.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
In this way, all source files are listed in Makefile.sources and included
from Makefile.am, thus enabling the reuse from Android makefiles.
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
