diff options
Diffstat (limited to 'src/intel_device.c')
| -rw-r--r-- | src/intel_device.c | 47 |
1 files changed, 28 insertions, 19 deletions
diff --git a/src/intel_device.c b/src/intel_device.c index fcb179bd..22eedb69 100644 --- a/src/intel_device.c +++ b/src/intel_device.c @@ -163,6 +163,30 @@ static int __intel_check_device(int fd) return ret; } +static int open_cloexec(const char *path) +{ + struct stat st; + int loop = 1000; + int fd; + + /* No file? Assume the driver is loading slowly */ + while (stat(path, &st) == -1 && errno == ENOENT && --loop) + usleep(50000); + + if (loop != 1000) + ErrorF("intel: waited %d ms for '%s' to appear\n", + (1000 - loop) * 50, path); + + fd = -1; +#ifdef O_CLOEXEC + fd = open(path, O_RDWR | O_NONBLOCK | O_CLOEXEC); +#endif + if (fd == -1) + fd = fd_set_cloexec(open(path, O_RDWR | O_NONBLOCK)); + + return fd; +} + #ifdef __linux__ static int __intel_open_device__major_minor(int _major, int _minor) { @@ -187,11 +211,7 @@ static int __intel_open_device__major_minor(int _major, int _minor) if (stat(path, &st) == 0 && major(st.st_rdev) == _major && minor(st.st_rdev) == _minor) { -#ifdef O_CLOEXEC - fd = open(path, O_RDWR | O_NONBLOCK | O_CLOEXEC); -#endif - if (fd == -1) - fd = fd_set_cloexec(open(path, O_RDWR | O_NONBLOCK)); + fd = open_cloexec(path); break; } } @@ -254,11 +274,7 @@ static int __intel_open_device__pci(const struct pci_device *pci) if (strncmp(de->d_name, "card", 4) == 0) { sprintf(path + base + 4, "/dev/dri/%s", de->d_name); -#ifdef O_CLOEXEC - fd = open(path + base + 4, O_RDWR | O_NONBLOCK | O_CLOEXEC); -#endif - if (fd == -1) - fd = fd_set_cloexec(open(path + base + 4, O_RDWR | O_NONBLOCK)); + fd = open_cloexec(path + base + 4); if (fd != -1) break; @@ -321,15 +337,8 @@ static int __intel_open_device(const struct pci_device *pci, const char *path) fd = __intel_open_device__pci(pci); if (fd == -1) fd = __intel_open_device__legacy(pci); - } else { -#ifdef O_CLOEXEC - fd = open(path, O_RDWR | O_NONBLOCK | O_CLOEXEC); -#else - fd = -1; -#endif - if (fd == -1) - fd = fd_set_cloexec(open(path, O_RDWR | O_NONBLOCK)); - } + } else + fd = open_cloexec(path); return fd; } |