diff options
Diffstat (limited to 'drivers/gpu/drm/i915/selftests/i915_selftest.c')
| -rw-r--r-- | drivers/gpu/drm/i915/selftests/i915_selftest.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/selftests/i915_selftest.c b/drivers/gpu/drm/i915/selftests/i915_selftest.c index d3bf9eefb682..1bc11c09faef 100644 --- a/drivers/gpu/drm/i915/selftests/i915_selftest.c +++ b/drivers/gpu/drm/i915/selftests/i915_selftest.c @@ -396,6 +396,35 @@ bool __igt_timeout(unsigned long timeout, const char *fmt, ...) return true; } +void igt_hexdump(const void *buf, size_t len) +{ + const size_t rowsize = 8 * sizeof(u32); + const void *prev = NULL; + bool skip = false; + size_t pos; + + for (pos = 0; pos < len; pos += rowsize) { + char line[128]; + + if (prev && !memcmp(prev, buf + pos, rowsize)) { + if (!skip) { + pr_info("*\n"); + skip = true; + } + continue; + } + + WARN_ON_ONCE(hex_dump_to_buffer(buf + pos, len - pos, + rowsize, sizeof(u32), + line, sizeof(line), + false) >= sizeof(line)); + pr_info("[%04zx] %s\n", pos, line); + + prev = buf + pos; + skip = false; + } +} + module_param_named(st_random_seed, i915_selftest.random_seed, uint, 0400); module_param_named(st_timeout, i915_selftest.timeout_ms, uint, 0400); module_param_named(st_filter, i915_selftest.filter, charp, 0400); |