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authorDave Airlie <airlied@redhat.com>2017-08-04 02:13:55 +0100
committerDave Airlie <airlied@redhat.com>2017-08-05 03:52:44 +0100
commit36a1b61321561634c6b243cf876c347fef73dfa4 (patch)
tree65e842a117b24b8349b799fba7951d7661fdec9e
parent9777c4234b0e78bf79455ff7081068fe3c71a2de (diff)
radv: avoid GPU hangs if someone does a resolve with non-multisample src (v2)
This is a bug in the app, but I'd rather avoid hanging the GPU, esp if someone is running in validation and it takes out their development environment. v2: get it right, reverse the polarity. Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> Cc: <mesa-stable@lists.freedesktop.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
-rw-r--r--src/amd/vulkan/radv_meta_resolve.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/amd/vulkan/radv_meta_resolve.c b/src/amd/vulkan/radv_meta_resolve.c
index 6cd0c381a5..6023e0f899 100644
--- a/src/amd/vulkan/radv_meta_resolve.c
+++ b/src/amd/vulkan/radv_meta_resolve.c
@@ -382,6 +382,11 @@ void radv_CmdResolveImage(
radv_meta_save_graphics_reset_vport_scissor_novertex(&saved_state, cmd_buffer);
assert(src_image->info.samples > 1);
+ if (src_image->info.samples <= 1) {
+ /* this causes GPU hangs if we get past here */
+ fprintf(stderr, "radv: Illegal resolve operation (src not multisampled), will hang GPU.");
+ return;
+ }
assert(dest_image->info.samples == 1);
if (src_image->info.samples >= 16) {