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-rw-r--r--kernel/gsp_sema_service.c21
1 files changed, 20 insertions, 1 deletions
diff --git a/kernel/gsp_sema_service.c b/kernel/gsp_sema_service.c
index 6d2bee7..f15f1d2 100644
--- a/kernel/gsp_sema_service.c
+++ b/kernel/gsp_sema_service.c
@@ -1639,8 +1639,27 @@ void gsp_sema_service_channel_add(const struct sema_channel_desc *desc)
int i;
if (!desc || !desc->h_object || !desc->gpfifo_va ||
- desc->gpfifo_entries < 2)
+ desc->gpfifo_entries < 2) {
+ /*
+ * SESSION 153-CONTINUED-15 (draw attribution): a refused
+ * channel registration used to be silent, so a real client
+ * channel with an empty gpfifo VA looked identical to a
+ * channel that was never allocated. Name every refusal.
+ */
+ static u32 refuse_log;
+
+ if (refuse_log < 32) {
+ refuse_log++;
+ pr_info("sema-svc: chan add REFUSED h=0x%x gpfifo=0x%llx ent=%u eng=%u userd=0x%llx/%u\n",
+ desc ? desc->h_object : 0,
+ desc ? desc->gpfifo_va : 0,
+ desc ? desc->gpfifo_entries : 0,
+ desc ? desc->engine_type : 0,
+ desc ? desc->userd_pa : 0,
+ desc ? desc->userd_as : 0);
+ }
return;
+ }
if (!desc->engine_type) {
WRITE_ONCE(svc_gr_content_rearm, true);
svc_cepin_log = 0;