Module: Mesa Branch: master Commit: bfcdc8f1747eabad57449a309be7160dd27605ac URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=bfcdc8f1747eabad57449a309be7160dd27605ac
Author: Icecream95 <i...@disroot.org> Date: Tue Jan 12 22:31:55 2021 +1300 pan/bi: Add some zero bytes after shaders on Bifrost Bifrost will prefetch bytes after the end of shaders, so make sure these bytes are allocated and zeroed. Fixes GPU faults in Xonotic. Suggested-by: Boris Brezillon <boris.brezil...@collabora.com> Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzw...@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8428> --- src/panfrost/bifrost/bifrost_compile.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/panfrost/bifrost/bifrost_compile.c b/src/panfrost/bifrost/bifrost_compile.c index ea26034dafd..55a17f3bf35 100644 --- a/src/panfrost/bifrost/bifrost_compile.c +++ b/src/panfrost/bifrost/bifrost_compile.c @@ -2236,6 +2236,10 @@ bifrost_compile_shader_nir(void *mem_ctx, nir_shader *nir, bifrost_debug & BIFROST_DBG_VERBOSE); } + /* Pad the shader with enough zero bytes to trick the prefetcher */ + memset(util_dynarray_grow(&program->compiled, uint8_t, BIFROST_SHADER_PREFETCH), + 0, BIFROST_SHADER_PREFETCH); + program->tls_size = ctx->tls_size; if ((bifrost_debug & BIFROST_DBG_SHADERDB || inputs->shaderdb) && _______________________________________________ mesa-commit mailing list mesa-commit@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-commit
