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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;
}