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Add gpuclockctl to allow privilaged control of GPU parameters

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This commit is contained in:
Marc Di Luzio 2019-01-31 17:27:50 +00:00
parent b1bf33d386
commit 8d4e9ac54e
6 changed files with 232 additions and 65 deletions
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69
daemon/gamemode-gpu.c
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@ -37,69 +37,16 @@ POSSIBILITY OF SUCH DAMAGE.
#include "logging.h"
#include "daemon_config.h"
#include "gpu-query.h"
// TODO
// Gather GPU type and information
// Allow configuration file specifying of gpu info
// Allow override of vendor and device
// Apply Nvidia GPU settings (CoolBits will be needed)
// Apply AMD GPU settings (Will need user changing pwm1_enable)
// Intel?
// Provide documentation on optimisations
/* Enums for GPU vendors */
enum GPUVendor {
Vendor_Invalid = 0,
Vendor_NVIDIA = 0x10de,
Vendor_AMD = 0x1002,
Vendor_Intel = 0x8086
};
/* Storage for static GPU info gathered at start */
struct GameModeGPUInfo {
enum GPUVendor vendor;
int device; /* path to device, ie. /sys/class/drm/card#/ */
long core; /* Core clock to apply */
long mem; /* Mem clock to apply */
};
/**
* Applies or removes Nvidia optimisations
*/
static int apply_gpu_nvidia(const GameModeGPUInfo *info, bool apply)
{
if (!info)
return 0;
// Running these commands:
// nvidia-settings -a '[gpu:0]/GPUMemoryTransferRateOffset[3]=1400'
// nvidia-settings -a '[gpu:0]/GPUGraphicsClockOffset[3]=50'
if (apply) {
} else {
}
return 0;
}
/**
* Applies or removes AMD optimisations
*/
static int apply_gpu_amd(const GameModeGPUInfo *info, bool apply)
{
if (!info)
return 0;
// We'll want to set both the following:
// core: device/pp_sclk_od (0%+ additional)
// mem: device/pp_mclk_od (0%+ additional)
// Guide from https://www.maketecheasier.com/overclock-amd-gpu-linux/
if (apply) {
} else {
}
return 0;
}
/**
* Attempts to identify the current in use GPU information
*/
@ -121,7 +68,7 @@ int game_mode_initialise_gpu(GameModeConfig *config, GameModeGPUInfo **info)
GameModeGPUInfo *new_info = malloc(sizeof(GameModeGPUInfo));
memset(new_info, 0, sizeof(GameModeGPUInfo));
// TODO: Fill in the GPU info
// TODO: Fill in the GPU vendor and device
/* Load the config based on GPU */
switch (new_info->vendor) {
@ -160,15 +107,7 @@ int game_mode_apply_gpu(const GameModeGPUInfo *info, bool apply)
if (!info)
return 0;
switch (info->vendor) {
case Vendor_NVIDIA:
return apply_gpu_nvidia(info, apply);
case Vendor_AMD:
return apply_gpu_amd(info, apply);
default:
break;
}
/* TODO Call gpuclockctl set */
/* Unsupported GPU vendor, do nothing */
return 0;
}

64
daemon/gpu-query.c Normal file
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@ -0,0 +1,64 @@
/*
Copyright (c) 2017-2018, Feral Interactive
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of Feral Interactive nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
#define _GNU_SOURCE
#include "gpu-query.h"
#include "logging.h"
// NVIDIA
// Running these commands:
// nvidia-settings -a '[gpu:0]/GPUMemoryTransferRateOffset[3]=1400'
// nvidia-settings -a '[gpu:0]/GPUGraphicsClockOffset[3]=50'
// AMD
// We'll want to set both the following:
// core: device/pp_sclk_od (0%+ additional)
// mem: device/pp_mclk_od (0%+ additional)
// Guide from https://www.maketecheasier.com/overclock-amd-gpu-linux/
/**
* Get the gpu state
* Populates the struct with the GPU info on the system
*/
int get_gpu_state( struct GameModeGPUInfo* info )
{
return 0;
}
/**
* Set the gpu state based on input parameters
* Only works when run as root
*/
int set_gpu_state( struct GameModeGPUInfo* info )
{
return 0;
}

61
daemon/gpu-query.h Normal file
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@ -0,0 +1,61 @@
/*
Copyright (c) 2017-2018, Feral Interactive
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of Feral Interactive nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
/* Enums for GPU vendors */
enum GPUVendor {
Vendor_Invalid = 0,
Vendor_NVIDIA = 0x10de,
Vendor_AMD = 0x1002,
Vendor_Intel = 0x8086
};
/* Storage for GPU info*/
struct GameModeGPUInfo {
enum GPUVendor vendor;
int device; /* path to device, ie. /sys/class/drm/card#/ */
long core; /* Core clock to apply */
long mem; /* Mem clock to apply */
};
/**
* Get the gpu state
* Populates the struct with the GPU info on the system
*/
int get_gpu_state( struct GameModeGPUInfo* info );
/**
* Set the gpu state based on input parameters
* Only works when run as root
*/
int set_gpu_state( struct GameModeGPUInfo* info );

76
daemon/gpuclockctl.c Normal file
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@ -0,0 +1,76 @@
/*
Copyright (c) 2017-2018, Feral Interactive
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of Feral Interactive nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
#define _GNU_SOURCE
#include "logging.h"
#include "gpu-query.h"
/**
* Main entry point, dispatch to the appropriate helper
*/
int main(int argc, char *argv[])
{
if (argc == 4 && strncmp(argv[1], "get", 3) == 0) {
const char *vendor = argv[1];
const char *device = argv[2];
struct GameModeGPUInfo info;
/* TODO Populate with vendor and device */
get_gpu_state(&info);
printf("%d %d\n", info.core, info.mem);
} else if (argc == 6 && strncmp(argv[3], "set", 3) == 0) {
const char *vendor = argv[1];
const char *device = argv[2];
const char *core = argv[4];
const char *mem = argv[5];
/* Must be root to set the state */
if (geteuid() != 0) {
fprintf(stderr, "This program must be run as root\n");
return EXIT_FAILURE;
}
struct GameModeGPUInfo info;
/* TODO Populate with vendor, device and clocks */
return set_gpu_state(&info);
} else {
fprintf(stderr, "usage: gpuclockctl PCI_ID DEVICE [get] [set CORE MEM]\n");
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}

16
daemon/meson.build
View File

@ -2,6 +2,7 @@
common_sources = [
'logging.c',
'governors-query.c',
'gpu-query.c',
]
daemon_common = static_library(
@ -62,3 +63,18 @@ cpugovctl = executable(
install: true,
install_dir: path_libexecdir,
)
# Small target util to get and set gpu clocks values
gpuclockctl_sources = [
'gpuclockctl.c',
]
gpuclockctl = executable(
'gpuclockctl',
sources: gpuclockctl_sources,
dependencies: [
link_daemon_common,
],
install: true,
install_dir: path_libexecdir,
)

11
data/com.feralinteractive.GameMode.policy.in
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@ -23,4 +23,15 @@
<annotate key="org.freedesktop.policykit.exec.path">@LIBEXECDIR@/cpugovctl</annotate>
</action>
<action id="com.feralinteractive.GameMode.gpu-helper">
<description>Modify the GPU clock statesr</description>
<message>Authentication is required to modify the GPU clock states</message>
<defaults>
<allow_any>no</allow_any>
<allow_inactive>no</allow_inactive>
<allow_active>yes</allow_active>
</defaults>
<annotate key="org.freedesktop.policykit.exec.path">@LIBEXECDIR@/gpuclockctl</annotate>
</action>
</policyconfig>