gpu: nvgpu: Implement engine_enum_from_type

Implement a helper function engine_enum_from_type. This allows
parsing device_info entries for LCE engine type.

Pascal has logical copy engine instead of CE2, so so add definition
of that.

Change-Id: I71f59c308641d84ac59fd57fc37d9b627bb07a43
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1147747
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gp10b/fifo_gp10b.c b/drivers/gpu/nvgpu/gp10b/fifo_gp10b.c
index 4766e0e4..45de221e 100644
--- a/drivers/gpu/nvgpu/gp10b/fifo_gp10b.c
+++ b/drivers/gpu/nvgpu/gp10b/fifo_gp10b.c
@@ -23,6 +23,7 @@
 #include "hw_ccsr_gp10b.h"
 #include "hw_fifo_gp10b.h"
 #include "hw_ram_gp10b.h"
+#include "hw_top_gp10b.h"
 
 static void gp10b_set_pdb_fault_replay_flags(struct gk20a *g,
                                 struct mem_desc *mem)
@@ -181,10 +182,26 @@ static int gp10b_fifo_resetup_ramfc(struct channel_gk20a *c)
         return 0;
 }
 
+static int gp10b_fifo_engine_enum_from_type(struct gk20a *g, u32 engine_type)
+{
+        int ret = ENGINE_INVAL_GK20A;
+
+        gk20a_dbg_info("engine type %d", engine_type);
+        if (engine_type == top_device_info_type_enum_graphics_v())
+                ret = ENGINE_GR_GK20A;
+        else if (engine_type == top_device_info_type_enum_lce_v())
+                ret = ENGINE_CE2_GK20A;
+        else
+                gk20a_err(g->dev, "unknown engine %d", engine_type);
+
+        return ret;
+}
+
 void gp10b_init_fifo(struct gpu_ops *gops)
 {
         gm20b_init_fifo(gops);
         gops->fifo.setup_ramfc = channel_gp10b_setup_ramfc;
         gops->fifo.get_pbdma_signature = gp10b_fifo_get_pbdma_signature;
         gops->fifo.resetup_ramfc = gp10b_fifo_resetup_ramfc;
+        gops->fifo.engine_enum_from_type = gp10b_fifo_engine_enum_from_type;
 }