diff options
Diffstat (limited to 'tools/intel_l3_parity.c')
| -rw-r--r-- | tools/intel_l3_parity.c | 30 |
1 files changed, 14 insertions, 16 deletions
diff --git a/tools/intel_l3_parity.c b/tools/intel_l3_parity.c index ecc0c613..8692bef8 100644 --- a/tools/intel_l3_parity.c +++ b/tools/intel_l3_parity.c @@ -37,6 +37,7 @@ #include <getopt.h> #include "intel_chipset.h" #include "intel_io.h" +#include "igt_sysfs.h" #include "drmtest.h" #ifdef HAVE_CONFIG_H #include "config.h" @@ -180,37 +181,34 @@ static void usage(const char *name) int main(int argc, char *argv[]) { - const int device = drm_get_card(); - char *path[REAL_MAX_SLICES]; - uint32_t dft; + const char *path[REAL_MAX_SLICES] = {"l3_parity", "l3_parity_slice_1"}; int row = 0, bank = 0, sbank = 0; int fd[REAL_MAX_SLICES] = {0}, ret, i; int action = '0'; - int drm_fd = drm_open_driver(DRIVER_INTEL); int daemonize = 0; - devid = intel_get_drm_devid(drm_fd); + int device, dir; + uint32_t dft; + device = drm_open_driver(DRIVER_INTEL); + devid = intel_get_drm_devid(device); if (intel_gen(devid) < 7 || IS_VALLEYVIEW(devid)) - exit(EXIT_SUCCESS); + exit(77); assert(intel_register_access_init(intel_get_pci_device(), 0) == 0); - ret = asprintf(&path[0], "/sys/class/drm/card%d/l3_parity", device); - assert(ret != -1); - ret = asprintf(&path[1], "/sys/class/drm/card%d/l3_parity_slice_1", device); - assert(ret != -1); + dir = igt_sysfs_open(device, NULL); for_each_slice(i) { - fd[i] = open(path[i], O_RDWR); - assert(fd[i]); - ret = read(fd[i], l3logs[i], NUM_REGS * sizeof(uint32_t)); - if (ret == -1) { - perror("Reading sysfs"); - exit(EXIT_FAILURE); + fd[i] = openat(dir, path[i], O_RDWR); + if (read(fd[i], l3logs[i], NUM_REGS * sizeof(uint32_t)) < 0) { + perror(path[i]); + exit(77); } assert(lseek(fd[i], 0, SEEK_SET) == 0); } + close(dir); + /* NB: It is potentially unsafe to read this register if the kernel is * actively using this register range, or we're running multiple * instances of this tool. Since neither of those cases should occur |