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Add functionality to get the current GPU information in the daemon

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This commit is contained in:
Marc Di Luzio
2019-02-09 20:29:06 +00:00
parent e31a811946
commit 20a4862888
2 changed files with 44 additions and 0 deletions
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43
daemon/gamemode-gpu.c
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@ -220,3 +220,46 @@ int game_mode_apply_gpu(const GameModeGPUInfo *info, bool apply)
return 0;
}
int game_mode_get_gpu(GameModeGPUInfo *info)
{
if (!info)
return 0;
/* Generate the input strings */
char vendor[7];
snprintf(vendor, 7, "0x%04x", (short)info->vendor);
char device[4];
snprintf(device, 4, "%ld", info->device);
char nv_perf_level[4];
snprintf(nv_perf_level, 4, "%ld", info->nv_perf_level);
// Set up our command line to pass to gpuclockctl
// This doesn't need pkexec as get does not need elevated perms
const char *const exec_args[] = {
LIBEXECDIR "/gpuclockctl",
vendor,
device,
"get",
info->vendor == Vendor_NVIDIA ? nv_perf_level : NULL, /* Only use this if Nvidia */
NULL,
};
char buffer[EXTERNAL_BUFFER_MAX] = { 0 };
if (run_external_process_get_output(exec_args, buffer) != 0) {
LOG_ERROR("Failed to call gpuclockctl, could get values!\n");
return -1;
}
int core = 0;
int mem = 0;
if (sscanf(buffer, "%i %i", &core, &mem) != 2) {
LOG_ERROR("Failed to parse gpuclockctl output: %s\n", buffer);
return -1;
}
info->core = core;
info->mem = mem;
return 0;
}

1
daemon/gamemode.h
View File

@ -144,3 +144,4 @@ typedef struct GameModeGPUInfo GameModeGPUInfo;
int game_mode_initialise_gpu(GameModeConfig *config, GameModeGPUInfo **info);
void game_mode_free_gpu(GameModeGPUInfo **info);
int game_mode_apply_gpu(const GameModeGPUInfo *info, bool apply);
int game_mode_get_gpu(GameModeGPUInfo *info);