gpu: nvgpu: falcon copy from DMEM

- Added interface/HAL method for falcon
to support copy from dmem
- Method to read dmem size
- Method to check error on input parameters

JIRA NVGPU-99

Change-Id: Id27b2b7f4f338196fc3b187555718543445d35bd
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: https://git-master/r/1506525
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/common/falcon/falcon.c b/drivers/gpu/nvgpu/common/falcon/falcon.c
index 9e832985..4e3ea1a8 100644
--- a/drivers/gpu/nvgpu/common/falcon/falcon.c
+++ b/drivers/gpu/nvgpu/common/falcon/falcon.c
@@ -116,6 +116,14 @@ bool nvgpu_flcn_get_idle_status(struct nvgpu_falcon *flcn)
         return status;
 }
 
+int nvgpu_flcn_copy_from_dmem(struct nvgpu_falcon *flcn,
+        u32 src, u8 *dst, u32 size, u8 port)
+{
+        struct nvgpu_falcon_ops *flcn_ops = &flcn->flcn_ops;
+
+        return flcn_ops->copy_from_dmem(flcn, src, dst, size, port);
+}
+
 void nvgpu_flcn_sw_init(struct gk20a *g, u32 flcn_id)
 {
         struct nvgpu_falcon *flcn = NULL;