diff options
| author | Zhanjun Dong <zhanjun.dong@intel.com> | 2025-11-27 12:07:58 -0500 |
|---|---|---|
| committer | Ashutosh Dixit <ashutosh.dixit@intel.com> | 2025-12-04 13:43:35 -0800 |
| commit | 09fb6bccef8221544221ebeb97cffec3fb42920d (patch) | |
| tree | 839f95064ce0e7fd2c5d4b4a5693a3b9e47bc23d /drivers/gpu | |
| parent | fc40e8f6fc2de469b40494df9c12fda2c11dea3f (diff) | |
| download | linux-09fb6bccef8221544221ebeb97cffec3fb42920d.tar.gz linux-09fb6bccef8221544221ebeb97cffec3fb42920d.zip | |
drm/xe/guc: Only add GuC crash dump if available
Add GuC crash dump data empty check. LFD will only include crash dump
section when data is not empty.
Signed-off-by: Zhanjun Dong <zhanjun.dong@intel.com>
Reviewed-by: Julia Filipchuk <julia.filipchuk@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patch.msgid.link/20251127170759.2620994-6-zhanjun.dong@intel.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_guc_log.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_guc_log.c b/drivers/gpu/drm/xe/xe_guc_log.c index 51c54d2a49fd..40c9e812e9d5 100644 --- a/drivers/gpu/drm/xe/xe_guc_log.c +++ b/drivers/gpu/drm/xe/xe_guc_log.c @@ -498,6 +498,50 @@ xe_guc_log_add_log_event(struct drm_printer *p, struct xe_guc_log_snapshot *snap return size; } +static int +xe_guc_log_add_crash_dump(struct drm_printer *p, struct xe_guc_log_snapshot *snapshot, + struct guc_lic_save *config) +{ + struct guc_log_buffer_entry_list *entry; + int chunk_from, chunk_id; + int from, to, i; + size_t size = 0; + u32 *buf32; + + entry = &config->entry[GUC_LOG_TYPE_CRASH_DUMP]; + + /* Skip zero sized crash dump */ + if (!entry->buf_size) + return 0; + + /* Check if crash dump section are all zero */ + from = entry->offset; + to = entry->offset + entry->buf_size; + chunk_from = from % GUC_LOG_CHUNK_SIZE; + chunk_id = from / GUC_LOG_CHUNK_SIZE; + buf32 = snapshot->copy[chunk_id] + chunk_from; + + for (i = 0; i < entry->buf_size / sizeof(u32); i++) + if (buf32[i]) + break; + + /* Buffer has non-zero data? */ + if (i < entry->buf_size / sizeof(u32)) { + struct guc_lfd_data lfd; + + size = xe_guc_log_add_lfd_header(&lfd); + lfd.header |= FIELD_PREP(GUC_LFD_DATA_HEADER_MASK_TYPE, GUC_LFD_TYPE_FW_CRASH_DUMP); + /* Calculate data length */ + lfd.data_count = DIV_ROUND_UP(entry->buf_size, sizeof(u32)); + /* Output GUC_LFD_TYPE_FW_CRASH_DUMP header */ + lfd_output_binary(p, (char *)&lfd, size); + + /* rd/wr ptr is not used for crash dump */ + xe_guc_log_print_chunks(p, snapshot, from, to); + } + return size; +} + void xe_guc_log_snapshot_print_lfd(struct xe_guc_log_snapshot *snapshot, struct drm_printer *p); void @@ -527,6 +571,7 @@ xe_guc_log_snapshot_print_lfd(struct xe_guc_log_snapshot *snapshot, struct drm_p return; xe_guc_log_add_log_event(p, snapshot, &config); + xe_guc_log_add_crash_dump(p, snapshot, &config); } /** |