gpu: nvgpu: move submit path to linux

Nvgpu submit path has a lot of dependency on Linux framework
e.g. use of copy_from_user, use of structures defined in uapi/nvgpu headers,
dma_buf_* calls for trace support etc

Hence to keep common code independent of Linux code, move submit path to
Linux directory

Move below APIs to common/linux/channel.c
trace_write_pushbuffer()
trace_write_pushbuffer_range()
gk20a_submit_prepare_syncs()
gk20a_submit_append_priv_cmdbuf()
gk20a_submit_append_gpfifo()
gk20a_submit_channel_gpfifo()

Move below APIs to common/linux/ce2.c
gk20a_ce_execute_ops()

Define gk20a_ce_execute_ops() in common/linux/ce2.c, and declare it in
gk20a/ce2_gk20a.h since it is needed in common/mm code too
Each OS needs to implement this API separately

gk20a_channel_alloc_gpfifo() use sizeof(nvgpu_gpfifo) to get size of one gpfifo
entry, but structure nvgpu_gpfifo is linux specific
Define new nvgpu_get_gpfifo_entry_size() in linux specific code and use it
in gk20a_channel_alloc_gpfifo() to get gpfifo entry size
Each OS needs to implement this API separately

Export some APIs from gk20a/ce2_gk20a.h and gk20a/channel_gk20a.h that are
needed in linux code

Jira NVGPU-259
Jira NVGPU-313

Change-Id: I360c6cb8ce4494b1e50c66af334a2a379f0d2dc4
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1586277
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 19 insertions, 10 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/channel_gk20a.h b/drivers/gpu/nvgpu/gk20a/channel_gk20a.h
index 4b1cb351..cdf75a9a 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/channel_gk20a.h
@@ -24,6 +24,9 @@
 #ifndef CHANNEL_GK20A_H
 #define CHANNEL_GK20A_H
 
+/* TODO: To be removed when work_struct update_fn_work is moved out of common code */
+#include <linux/workqueue.h>
+
 #include <linux/stacktrace.h>
 #include <nvgpu/list.h>
 
@@ -374,16 +377,6 @@ struct channel_gk20a *gk20a_open_new_channel_with_cb(struct gk20a *g,
                 int runlist_id,
                 bool is_privileged_channel);
 
-int gk20a_submit_channel_gpfifo(struct channel_gk20a *c,
-                                struct nvgpu_gpfifo *gpfifo,
-                                struct nvgpu_submit_gpfifo_args *args,
-                                u32 num_entries,
-                                u32 flags,
-                                struct nvgpu_fence *fence,
-                                struct gk20a_fence **fence_out,
-                                bool force_need_sync_fence,
-                                struct fifo_profile_gk20a *profile);
-
 int gk20a_channel_alloc_gpfifo(struct channel_gk20a *c,
                 unsigned int num_entries,
                 unsigned int num_inflight_jobs,
@@ -408,4 +401,20 @@ int gk20a_channel_set_runlist_interleave(struct channel_gk20a *ch,
 void gk20a_channel_event_id_post_event(struct channel_gk20a *ch,
                                        u32 event_id);
 
+int channel_gk20a_alloc_job(struct channel_gk20a *c,
+                struct channel_gk20a_job **job_out);
+void channel_gk20a_free_job(struct channel_gk20a *c,
+                struct channel_gk20a_job *job);
+u32 nvgpu_get_gp_free_count(struct channel_gk20a *c);
+u32 nvgpu_gp_free_count(struct channel_gk20a *c);
+int gk20a_channel_add_job(struct channel_gk20a *c,
+                                 struct channel_gk20a_job *job,
+                                 bool skip_buffer_refcounting);
+void free_priv_cmdbuf(struct channel_gk20a *c,
+                             struct priv_cmd_entry *e);
+void gk20a_channel_clean_up_jobs(struct channel_gk20a *c,
+                                        bool clean_all);
+
+u32 nvgpu_get_gpfifo_entry_size(void);
+
 #endif /* CHANNEL_GK20A_H */