drm/i915/guc: Improve the GuC documentation & comments about proxy submissions

While at it, fix a typo (s/ring_lcra/ring_lrca) and improve the naming of one
firware interface field (s/ring_tail/submit_element_info, since it can contain
more than just the ring tail).

No change in functionality.

v2:
  - Remove reference to "unique user" of the GuC (Daniele)
  - Keep mention to renaming from "GuC context" to "client" (Daniele)

Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/gpu/drm/i915/intel_guc_fwif.h b/drivers/gpu/drm/i915/intel_guc_fwif.h
index 3ae8cefa47b3..4edf40fe361f 100644
--- a/drivers/gpu/drm/i915/intel_guc_fwif.h
+++ b/drivers/gpu/drm/i915/intel_guc_fwif.h
@@ -251,7 +251,7 @@ union guc_doorbell_qw {
 struct guc_wq_item {
 	u32 header;
 	u32 context_desc;
-	u32 ring_tail;
+	u32 submit_element_info;
 	u32 fence_id;
 } __packed;
 
@@ -278,7 +278,7 @@ struct guc_execlist_context {
 	u32 context_desc;
 	u32 context_id;
 	u32 ring_status;
-	u32 ring_lcra;
+	u32 ring_lrca;
 	u32 ring_begin;
 	u32 ring_end;
 	u32 ring_next_free_location;