drm/xe/devcoredump: Move exec queue snapshot to Contexts section

commit 042c48b73699c47d84b6ace73036e5a31a0d4cfc upstream.

Having the exec queue snapshot inside a "GuC CT" section was always
wrong.  Commit c28fd6c358db ("drm/xe/devcoredump: Improve section
headings and add tile info") tried to fix that bug, but with that also
broke the mesa tool that parses the devcoredump, hence it was reverted
in commit a53da2fb25a3 ("drm/xe: Revert some changes that break a mesa
debug tool").

With the mesa tool also fixed, this can propagate as a fix on both
kernel and userspace side to avoid unnecessary headache for a debug
feature.

Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Julia Filipchuk <julia.filipchuk@intel.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: stable@vger.kernel.org
Fixes: a53da2fb25a3 ("drm/xe: Revert some changes that break a mesa debug tool")
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250123051112.1938193-2-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit a37934ea75d331fafa7fe80b6180642ba5193422)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/xe/xe_devcoredump.c b/drivers/gpu/drm/xe/xe_devcoredump.c
index 85aa3ab0da3b8793adcb557f9559684877789011..4ff7b50ec1a48563695b8fff08c9ae0aa785023d 100644 (file)
--- a/drivers/gpu/drm/xe/xe_devcoredump.c
+++ b/drivers/gpu/drm/xe/xe_devcoredump.c
@@ -104,11 +104,7 @@ static ssize_t __xe_devcoredump_read(char *buffer, size_t count,
        drm_puts(&p, "\n**** GuC CT ****\n");
        xe_guc_ct_snapshot_print(ss->ct, &p);
 
-       /*
-        * Don't add a new section header here because the mesa debug decoder
-        * tool expects the context information to be in the 'GuC CT' section.
-        */
-       /* drm_puts(&p, "\n**** Contexts ****\n"); */
+       drm_puts(&p, "\n**** Contexts ****\n");
        xe_guc_exec_queue_snapshot_print(ss->ge, &p);
 
        drm_puts(&p, "\n**** Job ****\n");