Revert "vgsp-sema: scope CE/GR rank assignment to the owning client (ISSUE-0002)"

This reverts commit 35ca086b20f04f6be5bd935fd53d08e43f67e869.

1 files changed, 0 insertions, 13 deletions

diff --git a/kernel/gsp_sema_service.c b/kernel/gsp_sema_service.c
index 638a866..d736ffe 100644
--- a/kernel/gsp_sema_service.c
+++ b/kernel/gsp_sema_service.c
@@ -1017,23 +1017,12 @@ void gsp_sema_service_channel_add(const struct sema_channel_desc *desc)
 		 * same order, so the rank is what ties a channel to its ring
 		 * offset and its push-buffer base (see svc_ring_autopin /
 		 * svc_pb_pair).
-		 *
-		 * ISSUE-0002 (r78): the rank is per OWNING CLIENT - the UVM
-		 * pool layout (0x121000000 + 4*rank) is allocated by that
-		 * client. The kernel/GPU-global CeUtils scrubber channel
-		 * (client != the UVM client, entries=4096) must not consume
-		 * rank 0: r78 kept it registered (client-scoped deletion) and
-		 * every UVM channel's rank shifted by one, so ring autopin and
-		 * push-buffer pairing used the wrong offsets and the first
-		 * client wedged.
 		 */
 		if (desc->engine_type) {
 			u8 rank = 0;
 
 			for (k = 0; k < SVC_MAX_CHANNELS; k++)
 				if (svc.chan[k].valid && svc.chan[k].engine_type &&
-				    (!svc.chan[k].h_client || !desc->h_client ||
-				     svc.chan[k].h_client == desc->h_client) &&
 				    svc.chan[k].h_object < desc->h_object)
 					rank++;
 			ch->ce_index = rank;
@@ -1042,8 +1031,6 @@ void gsp_sema_service_channel_add(const struct sema_channel_desc *desc)
 
 			for (k = 0; k < SVC_MAX_CHANNELS; k++)
 				if (svc.chan[k].valid && !svc.chan[k].engine_type &&
-				    (!svc.chan[k].h_client || !desc->h_client ||
-				     svc.chan[k].h_client == desc->h_client) &&
 				    svc.chan[k].h_object < desc->h_object)
 					rank++;
 			ch->gr_index = rank;