diff options
Diffstat (limited to 'lib/igt_gt.c')
| -rw-r--r-- | lib/igt_gt.c | 25 |
1 files changed, 5 insertions, 20 deletions
diff --git a/lib/igt_gt.c b/lib/igt_gt.c index 6f7daa5e..d5e8b557 100644 --- a/lib/igt_gt.c +++ b/lib/igt_gt.c @@ -270,30 +270,15 @@ igt_hang_t igt_hang_ctx(int fd, memset(b, 0xc5, sizeof(b)); - /* - * We emit invalid command to provoke a gpu hang. - * If that doesn't work, we do bb start loop. - * Note that the bb start aligment is illegal due this. - * But hey, we are here to hang the gpu so whatever works. - * We skip 0xfffffff on gen9 as it confuses hw in an such a way that - * it will skip over the bb start, causing runaway head and - * thus much slower hang detection. - */ len = 2; - if (intel_gen(intel_get_drm_devid(fd)) >= 8) { - b[0] = MI_NOOP; + if (intel_gen(intel_get_drm_devid(fd)) >= 8) len++; - } else { - b[0] = 0xffffffff; - } - - b[1] = MI_BATCH_BUFFER_START | (len - 2); - b[1+len] = MI_BATCH_BUFFER_END; - b[2+len] = MI_NOOP; + b[0] = MI_BATCH_BUFFER_START | (len - 2); + b[len] = MI_BATCH_BUFFER_END; + b[len+1] = MI_NOOP; gem_write(fd, exec.handle, 0, b, sizeof(b)); - reloc.offset = 8; - reloc.delta = 4; + reloc.offset = sizeof(uint32_t); reloc.target_handle = exec.handle; reloc.read_domains = I915_GEM_DOMAIN_COMMAND; |