gpu:nvgpu: Enable Falcon trace prints

Dump Falcon trace on PMU Crash and add debugfs node falc_trace.
This needs Debug trace to be enabled in GPmu binary.

Change-Id: I093ef196202958e46d8d9636a848bd6733b5e4cc
Signed-off-by: Vijayakumar <vsubbu@nvidia.com>
Reviewed-on: http://git-master/r/432732
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Tested-by: Bharat Nihalani <bnihalani@nvidia.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/pmu_gk20a.h b/drivers/gpu/nvgpu/gk20a/pmu_gk20a.h
index fec0a572..828058b7 100644
--- a/drivers/gpu/nvgpu/gk20a/pmu_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/pmu_gk20a.h
@@ -339,6 +339,7 @@ struct pmu_cmdline_args_v1 {
         struct pmu_mem_v1 gc6_ctx;              /* dmem offset of gc6 context */
 };
 
+#define GK20A_PMU_TRACE_BUFSIZE     0x4000   /* 4K */
 #define GK20A_PMU_DMEM_BLKSIZE2         8
 
 #define GK20A_PMU_UCODE_NB_MAX_OVERLAY      32
@@ -1008,6 +1009,7 @@ struct pmu_gk20a {
         struct pmu_mem_desc pg_buf;
         /* TBD: remove this if ZBC seq is fixed */
         struct pmu_mem_desc seq_buf;
+        struct pmu_mem_desc trace_buf;
         bool buf_loaded;
 
         struct pmu_sha1_gid gid_info;