gpu: nvgpu: Power up GPU in CDE only when converting

GPU does not need to powered up if user space calls kernel and there
is no new work to be done.

Bug 1623918

Change-Id: I531aa7033530ae652d13684d8f8568a0e05fc2e1
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/732748

diff --git a/drivers/gpu/nvgpu/gk20a/ctrl_gk20a.c b/drivers/gpu/nvgpu/gk20a/ctrl_gk20a.c
index 5b43eb4b1b98d4a1f081bc13e747c1906e526543..c228b237172f51d67e44a126a644ea5821fefd46 100644 (file)
--- a/drivers/gpu/nvgpu/gk20a/ctrl_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/ctrl_gk20a.c
@@ -89,17 +89,12 @@ static int gk20a_ctrl_prepare_compressible_read(
        fence.id = args->fence.syncpt_id;
        fence.value = args->fence.syncpt_value;
 
-       ret = gk20a_busy(g->dev);
-       if (ret)
-               return ret;
-
        ret = gk20a_prepare_compressible_read(g, args->handle,
                        args->request_compbits, args->offset,
                        args->compbits_hoffset, args->compbits_voffset,
                        args->width, args->height, args->block_height_log2,
                        flags, &fence, &args->valid_compbits,
                        &args->zbc_color, &fence_out);
-       gk20a_idle(g->dev);
 
        if (ret)
                return ret;