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https://github.com/intel/compute-runtime.git
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9816f815f3
This change makes that drm file is opened in nonblocking mode for prelim kernels. In such case when calling exec buffer ioctl and get EAGAIN (aka EWOULDBLOCK) we may return error to API level Related-To: NEO-7144 Signed-off-by: Mateusz Jablonski <mateusz.jablonski@intel.com>
105 lines
2.2 KiB
C++
105 lines
2.2 KiB
C++
/*
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* Copyright (C) 2020-2022 Intel Corporation
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*
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* SPDX-License-Identifier: MIT
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*
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*/
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#include "shared/source/os_interface/linux/sys_calls.h"
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#include <dlfcn.h>
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#include <fcntl.h>
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#include <iostream>
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#include <poll.h>
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#include <stdio.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <sys/sysmacros.h>
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#include <unistd.h>
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namespace NEO {
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namespace SysCalls {
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unsigned int getProcessId() {
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return getpid();
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}
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unsigned long getNumThreads() {
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struct stat taskStat;
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stat("/proc/self/task", &taskStat);
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return taskStat.st_nlink - 2;
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}
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int close(int fileDescriptor) {
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return ::close(fileDescriptor);
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}
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int open(const char *file, int flags) {
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return ::open(file, flags);
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}
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int ioctl(int fileDescriptor, unsigned long int request, void *arg) {
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return ::ioctl(fileDescriptor, request, arg);
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}
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void *dlopen(const char *filename, int flag) {
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return ::dlopen(filename, flag);
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}
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int access(const char *pathName, int mode) {
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return ::access(pathName, mode);
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}
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int readlink(const char *path, char *buf, size_t bufsize) {
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return static_cast<int>(::readlink(path, buf, bufsize));
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}
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int getDevicePath(int deviceFd, char *buf, size_t &bufSize) {
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struct stat st;
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if (::fstat(deviceFd, &st)) {
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return -1;
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}
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snprintf(buf, bufSize, "/sys/dev/char/%d:%d",
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major(st.st_rdev), minor(st.st_rdev));
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return 0;
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}
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int poll(struct pollfd *pollFd, unsigned long int numberOfFds, int timeout) {
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return ::poll(pollFd, numberOfFds, timeout);
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}
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int fstat(int fd, struct stat *buf) {
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return ::fstat(fd, buf);
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}
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ssize_t pread(int fd, void *buf, size_t count, off_t offset) {
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return ::pread(fd, buf, count, offset);
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}
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ssize_t pwrite(int fd, const void *buf, size_t count, off_t offset) {
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return ::pwrite(fd, buf, count, offset);
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}
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void *mmap(void *addr, size_t size, int prot, int flags, int fd, off_t off) {
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return ::mmap(addr, size, prot, flags, fd, off);
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}
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int munmap(void *addr, size_t size) {
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return ::munmap(addr, size);
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}
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ssize_t read(int fd, void *buf, size_t count) {
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return ::read(fd, buf, count);
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}
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int fcntl(int fd, int cmd) {
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return ::fcntl(fd, cmd);
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}
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int fcntl(int fd, int cmd, int arg) {
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return ::fcntl(fd, cmd, arg);
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}
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} // namespace SysCalls
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} // namespace NEO
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