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Change AMD overclocking to simply be setting the power_dpm_force_performance_level file for now

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This covers the MVP for now, and simply allows pinning the power level to "high"

	Full overclocking set up is somewhat more complicated, and it'll be better to implement that at the same time as the same for Nvidia, where we're currently only really setting the top end power level
This commit is contained in:
Marc Di Luzio
2019-03-07 18:51:20 +00:00
committed by Alex Smith
parent 20efaaa33f
commit 9ade4481c3
9 changed files with 156 additions and 106 deletions
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50
daemon/gamemode-gpu.c
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@ -150,20 +150,11 @@ int game_mode_initialise_gpu(GameModeConfig *config, GameModeGPUInfo **info)
break;
case Vendor_AMD:
new_info->nv_core = config_get_amd_core_clock_percentage(config);
new_info->nv_mem = config_get_amd_mem_clock_percentage(config);
config_get_amd_performance_level(config, new_info->amd_performance_level);
/* Reject values over 20%
* If a user wants to go into very unsafe levels they can recompile
* As far as I can tell the driver doesn't allow values over 20 anyway
*/
const int amd_hard_limit = 20;
if (new_info->nv_core > amd_hard_limit || new_info->nv_mem > amd_hard_limit) {
LOG_ERROR("AMD Overclock value above safety level of %d%%, will not overclock!\n",
amd_hard_limit);
LOG_ERROR("amd_core_clock_percentage:%ld amd_mem_clock_percentage:%ld\n",
new_info->nv_core,
new_info->nv_mem);
/* Error about unsupported "manual" option, for now */
if (strcmp(new_info->amd_performance_level, "manual") == 0) {
LOG_ERROR("AMD Performance level set to \"manual\", this is currently unsupported");
free(new_info);
return -1;
}
@ -193,22 +184,20 @@ void game_mode_free_gpu(GameModeGPUInfo **info)
/**
* Applies GPU optimisations when gamemode is active and removes them after
*/
int game_mode_apply_gpu(const GameModeGPUInfo *info, bool apply)
int game_mode_apply_gpu(const GameModeGPUInfo *info)
{
// Null info means don't apply anything
if (!info)
return 0;
LOG_MSG("Requesting GPU optimisations on device:%ld with settings nv_core:%ld clock:%ld\n",
info->device,
info->nv_core,
info->nv_mem);
LOG_MSG("Requesting GPU optimisations on device:%ld\n", info->device);
/* 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_core[8];
snprintf(nv_core, 8, "%ld", info->nv_core);
char nv_mem[8];
@ -223,8 +212,8 @@ int game_mode_apply_gpu(const GameModeGPUInfo *info, bool apply)
vendor,
device,
"set",
apply ? nv_core : "0",
apply ? nv_mem : "0",
info->vendor == Vendor_NVIDIA ? nv_core : info->amd_performance_level,
info->vendor == Vendor_NVIDIA ? nv_mem : NULL, /* Only use this if Nvidia */
info->vendor == Vendor_NVIDIA ? nv_perf_level : NULL, /* Only use this if Nvidia */
NULL,
};
@ -263,19 +252,22 @@ int game_mode_get_gpu(GameModeGPUInfo *info)
char buffer[EXTERNAL_BUFFER_MAX] = { 0 };
if (run_external_process(exec_args, buffer, -1) != 0) {
LOG_ERROR("Failed to call gpuclockctl, could get values!\n");
LOG_ERROR("Failed to call gpuclockctl, could not get values!\n");
return -1;
}
int nv_core = 0;
int nv_mem = 0;
if (sscanf(buffer, "%i %i", &nv_core, &nv_mem) != 2) {
LOG_ERROR("Failed to parse gpuclockctl output: %s\n", buffer);
return -1;
switch (info->vendor) {
case Vendor_NVIDIA:
if (sscanf(buffer, "%ld %ld", &info->nv_core, &info->nv_mem) != 2) {
LOG_ERROR("Failed to parse gpuclockctl output: %s\n", buffer);
return -1;
}
break;
case Vendor_AMD:
strncpy(info->amd_performance_level, buffer, CONFIG_VALUE_MAX);
strtok(info->amd_performance_level, "\n");
break;
}
info->nv_core = nv_core;
info->nv_mem = nv_mem;
return 0;
}