gpu: nvgpu: drop user callback support in CE

Simplify the copyengine code by deleting support for the
ce_event_callback feature that has never been used. Similarly, create a
channel without the finish callback to get rid of that Linux dependency,
and delete the finish callback function as it now serves no purpose.

Delete also the submitted_seq_number and completed_seq_number fields
that are only written to.

Jira NVGPU-259

Change-Id: I02d15bdcb546f4dd8895a6bfb5130caf88a104e2
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1589320
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 2 insertions, 17 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/ce2_gk20a.h b/drivers/gpu/nvgpu/gk20a/ce2_gk20a.h
index 8d3a4ca3..5c3a1cfc 100644
--- a/drivers/gpu/nvgpu/gk20a/ce2_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/ce2_gk20a.h
@@ -40,8 +40,6 @@ int gk20a_ce2_nonstall_isr(struct gk20a *g, u32 inst_id, u32 pri_base);
 #define NVGPU_CE_MAX_COMMAND_BUFF_SIZE_PER_KICKOFF 256
 #define NVGPU_CE_MAX_COMMAND_BUFF_SIZE_FOR_TRACING 8
 
-typedef void (*ce_event_callback)(u32 ce_ctx_id, u32 ce_event_flag);
-
 /* dma launch_flags */
 enum {
         /* location */
@@ -69,14 +67,6 @@ enum {
         NVGPU_CE_MEMSET                    = (1 << 1),
 };
 
-/* CE event flags */
-enum {
-        NVGPU_CE_CONTEXT_JOB_COMPLETED               = (1 << 0),
-        NVGPU_CE_CONTEXT_JOB_TIMEDOUT                = (1 << 1),
-        NVGPU_CE_CONTEXT_SUSPEND                     = (1 << 2),
-        NVGPU_CE_CONTEXT_RESUME                      = (1 << 3),
-};
-
 /* CE app state machine flags */
 enum {
         NVGPU_CE_ACTIVE                    = (1 << 0),
@@ -106,7 +96,6 @@ struct gk20a_gpu_ctx {
         u32 ctx_id;
         struct nvgpu_mutex gpu_ctx_mutex;
         int gpu_ctx_state;
-        ce_event_callback user_event_callback;
 
         /* tsg related data */
         struct tsg_gk20a *tsg;
@@ -120,9 +109,6 @@ struct gk20a_gpu_ctx {
 
         struct nvgpu_list_node list;
 
-        u64 submitted_seq_number;
-        u64 completed_seq_number;
-
         u32 cmd_buf_read_queue_offset;
         u32 cmd_buf_end_queue_offset;
 };
@@ -140,12 +126,11 @@ void gk20a_ce_suspend(struct gk20a *g);
 void gk20a_ce_destroy(struct gk20a *g);
 
 /* CE app utility functions */
-u32 gk20a_ce_create_context_with_cb(struct gk20a *g,
+u32 gk20a_ce_create_context(struct gk20a *g,
                 int runlist_id,
                 int priority,
                 int timeslice,
-                int runlist_level,
-                ce_event_callback user_event_callback);
+                int runlist_level);
 int gk20a_ce_execute_ops(struct gk20a *g,
                 u32 ce_ctx_id,
                 u64 src_buf,