gpu: nvgpu: don't mem_{begin,end}() for gr

Now that GR buffers always have a kernel mapping, remove the unnecessary
calls to nvgpu_mem_begin() and nvgpu_mem_end() on these buffers:

- global ctx buffer mem in gr
- gr ctx mem in a tsg
- patch ctx mem in a gr ctx
- pm ctx mem in a gr ctx
- ctx_header mem in a channel (subctx header)

Change-Id: Id2a8ad108aef8db8b16dce5bae8003bbcd3b23e4
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1760599
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
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, 0 insertions, 10 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/fecs_trace_gk20a.c b/drivers/gpu/nvgpu/gk20a/fecs_trace_gk20a.c
index 7e0aee11..59f7fab4 100644
--- a/drivers/gpu/nvgpu/gk20a/fecs_trace_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/fecs_trace_gk20a.c
@@ -657,9 +657,6 @@ int gk20a_fecs_trace_bind_channel(struct gk20a *g,
 
         mem = &ch_ctx->mem;
 
-        if (nvgpu_mem_begin(g, mem))
-                return -ENOMEM;
-
         nvgpu_log(g, gpu_dbg_ctxsw, "addr_hi=%x addr_lo=%x count=%d", hi,
                 lo, GK20A_FECS_TRACE_NUM_RECORDS);
 
@@ -668,14 +665,9 @@ int gk20a_fecs_trace_bind_channel(struct gk20a *g,
                 ctxsw_prog_main_image_context_timestamp_buffer_control_num_records_f(
                         GK20A_FECS_TRACE_NUM_RECORDS));
 
-        nvgpu_mem_end(g, mem);
-
         if (nvgpu_is_enabled(g, NVGPU_FECS_TRACE_VA))
                 mem = &ch->ctx_header.mem;
 
-        if (nvgpu_mem_begin(g, mem))
-                return -ENOMEM;
-
         nvgpu_mem_wr(g, mem,
                 ctxsw_prog_main_image_context_timestamp_buffer_ptr_o(),
                 lo);
@@ -684,8 +676,6 @@ int gk20a_fecs_trace_bind_channel(struct gk20a *g,
                 ctxsw_prog_main_image_context_timestamp_buffer_ptr_v_f(hi) |
                 aperture_mask);
 
-        nvgpu_mem_end(g, mem);
-
         /* pid (process identifier) in user space, corresponds to tgid (thread
          * group id) in kernel space.
          */