mirror of
https://github.com/FeralInteractive/gamemode.git
synced 2025-06-06 23:57:22 +02:00
120 lines
3.6 KiB
C
120 lines
3.6 KiB
C
/*
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Copyright (c) 2017-2018, Feral Interactive
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of Feral Interactive nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#define _GNU_SOURCE
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#include "logging.h"
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#include "gpu-control.h"
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/* Helper to quit with usage */
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static const char *usage_text = "usage: gpuclockctl PCI_ID DEVICE [get] [set CORE MEM]";
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static void print_usage_and_exit(void)
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{
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fprintf(stderr, "%s\n", usage_text);
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exit(EXIT_FAILURE);
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}
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/* Helper to get and verify vendor value */
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static long get_vendor(const char *val)
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{
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char *end;
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long ret = strtol(val, &end, 0);
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if (!GPUVendorValid(ret) || end == val) {
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LOG_ERROR("ERROR: Invalid GPU Vendor passed (0x%04x)!\n", (unsigned short)ret);
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print_usage_and_exit();
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}
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return ret;
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}
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/* Helper to get and verify device value */
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static long get_device(const char *val)
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{
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char *end;
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long ret = strtol(val, &end, 10);
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if (ret < 0 || end == val) {
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LOG_ERROR("ERROR: Invalid GPU device passed (%ld)!\n", ret);
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print_usage_and_exit();
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}
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return ret;
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}
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/* Helper to get and verify core and mem value */
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static long get_coremem(const char *val)
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{
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char *end;
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long ret = strtol(val, &end, 10);
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if (ret < 0 || end == val) {
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LOG_ERROR("ERROR: Invalid core or mem value passed (%ld)!\n", ret);
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print_usage_and_exit();
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}
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return ret;
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}
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/**
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* Main entry point, dispatch to the appropriate helper
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*/
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int main(int argc, char *argv[])
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{
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if (argc == 4 && strncmp(argv[3], "get", 3) == 0) {
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/* Get and verify the vendor and device */
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struct GameModeGPUInfo info;
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memset(&info, 0, sizeof(info));
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info.vendor = get_vendor(argv[1]);
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info.device = get_device(argv[2]);
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/* Fetch the state and print it out */
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get_gpu_state(&info);
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printf("%ld %ld\n", info.core, info.mem);
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} else if (argc == 6 && strncmp(argv[3], "set", 3) == 0) {
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/* Must be root to set the state */
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if (geteuid() != 0) {
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fprintf(stderr, "gpuclockctl must be run as root to set values\n");
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print_usage_and_exit();
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}
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/* Get and verify the vendor and device */
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struct GameModeGPUInfo info;
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memset(&info, 0, sizeof(info));
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info.vendor = get_vendor(argv[1]);
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info.device = get_device(argv[2]);
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info.core = get_coremem(argv[4]);
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info.mem = get_coremem(argv[4]);
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return set_gpu_state(&info);
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} else {
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print_usage_and_exit();
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}
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return EXIT_SUCCESS;
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}
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