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https://github.com/FeralInteractive/gamemode.git
synced 2025-06-06 07:37:21 +02:00
Added common-cpu.c and common-cpu.h
Added common files for the cpu core parking/pinning functionality
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113
common/common-cpu.c
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113
common/common-cpu.c
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/*
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Copyright (c) 2017-2019, 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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#include <stdlib.h>
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#include <sched.h>
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#include "common-cpu.h"
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#include "common-logging.h"
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char *parse_cpulist (char *cpulist, long *from, long *to)
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{
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if (!cpulist || *cpulist == '\0')
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return NULL;
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char *endp;
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*from = strtol(cpulist, &endp, 10);
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if (endp == cpulist)
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return NULL;
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if (*endp == '\0' || *endp == ',') {
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*to = *from;
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if (*endp == '\0')
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return endp;
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return endp + 1;
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}
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if (*endp != '-')
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return NULL;
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cpulist = endp + 1;
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*to = strtol(cpulist, &endp, 10);
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if (endp == cpulist)
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return NULL;
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if (*to < *from)
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return NULL;
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if (*endp == '\0')
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return endp;
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return endp + 1;
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}
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/* Get the vendor for a device */
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/*enum GPUVendor gamemode_get_gpu_vendor(long device)
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{
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enum GPUVendor vendor = Vendor_Invalid;
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char path[64] = { 0 };
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if (snprintf(path, 64, "/sys/class/drm/card%ld/device/vendor", device) < 0) {
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LOG_ERROR("snprintf failed, will not apply gpu optimisations!\n");
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return Vendor_Invalid;
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}
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FILE *file = fopen(path, "r");
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if (!file) {
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LOG_ERROR("Couldn't open vendor file at %s, will not apply gpu optimisations!\n", path);
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return Vendor_Invalid;
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}
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char buff[64];
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bool got_line = fgets(buff, 64, file) != NULL;
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fclose(file);
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if (got_line) {
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vendor = strtol(buff, NULL, 0);
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} else {
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LOG_ERROR("Couldn't read contents of file %s, will not apply optimisations!\n", path);
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return Vendor_Invalid;
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}
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if (!GPUVendorValid(vendor)) {
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LOG_ERROR("Unknown vendor value (0x%04x) found, cannot apply optimisations!\n",
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(unsigned int)vendor);
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LOG_ERROR("Known values are: 0x%04x (NVIDIA) 0x%04x (AMD) 0x%04x (Intel)\n",
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(unsigned int)Vendor_NVIDIA,
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(unsigned int)Vendor_AMD,
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(unsigned int)Vendor_Intel);
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return Vendor_Invalid;
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}
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return vendor;
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}
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*/
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44
common/common-cpu.h
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44
common/common-cpu.h
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@ -0,0 +1,44 @@
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/*
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Copyright (c) 2017-2019, 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
|
||||
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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#pragma once
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/* Storage for CPU info*/
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struct GameModeCPUInfo {
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size_t num_cpu;
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int park_or_pin; /* 0 to park 1 to pin */
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cpu_set_t *online;
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cpu_set_t *to_keep;
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};
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/* parses a list of cpu cores in the format "a,b-c,d-e,f" */
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char *parse_cpulist (char *cpulist, long *from, long *to);
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