gpu: nvgpu: cde: Allow large surfaces

Currently cde swizzling application forces upper limit to surface
size. The limitation is artificial (i.e. nothing prevents shader
handling larger surfaces). Therefore, make the error condition a
warning.

Change-Id: I8f0cda7f2e9e9ecc90589e5a4b4091abcb513482
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/454591
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/cde_gk20a.c b/drivers/gpu/nvgpu/gk20a/cde_gk20a.c
index 63a1a590..4c115e5f 100644
--- a/drivers/gpu/nvgpu/gk20a/cde_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/cde_gk20a.c
@@ -1013,10 +1013,9 @@ static int gk20a_buffer_convert_gpu_to_cde(
         const int gridw = roundup(tilepitch, wgx) / wgx;
         const int gridh = roundup(ytilesaligned, wgy) / wgy;
 
-        if (xtiles > 4096 / 8 || ytiles > 4096 / 8) {
-                gk20a_warn(&g->dev->dev, "cde: too large surface");
-                return -EINVAL;
-        }
+        if (xtiles > 4096 / 8 || ytiles > 4096 / 8)
+                gk20a_warn(&g->dev->dev, "cde: surface is exceptionally large (xtiles=%d, ytiles=%d)",
+                           xtiles, ytiles);
 
         gk20a_dbg(gpu_dbg_cde, "w=%d, h=%d, bh_log2=%d, compbits_offset=0x%llx",
                   width, height, block_height_log2, compbits_offset);