Module: Mesa Branch: master Commit: 97bbb7b6a3afadc22ef956f507f70998629fe99a URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=97bbb7b6a3afadc22ef956f507f70998629fe99a
Author: Bruce Cherniak <[email protected]> Date: Wed Apr 12 18:43:25 2017 -0500 swr: Align swr_context allocation to SIMD alignment. The context now contains SIMD vectors which must be aligned (specifically samplePositions in the rastState in the derived state). Failure to align can result in segv crash on unaligned memory access in vector instructions. Reviewed-by: Tim Rowley <[email protected]> --- src/gallium/drivers/swr/swr_context.cpp | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/src/gallium/drivers/swr/swr_context.cpp b/src/gallium/drivers/swr/swr_context.cpp index 8c5a2692db..6f46d666ac 100644 --- a/src/gallium/drivers/swr/swr_context.cpp +++ b/src/gallium/drivers/swr/swr_context.cpp @@ -386,7 +386,7 @@ swr_destroy(struct pipe_context *pipe) if (screen->pipe == pipe) screen->pipe = NULL; - FREE(ctx); + AlignedFree(ctx); } @@ -452,7 +452,10 @@ swr_UpdateStatsFE(HANDLE hPrivateContext, const SWR_STATS_FE *pStats) struct pipe_context * swr_create_context(struct pipe_screen *p_screen, void *priv, unsigned flags) { - struct swr_context *ctx = CALLOC_STRUCT(swr_context); + struct swr_context *ctx = (struct swr_context *) + AlignedMalloc(sizeof(struct swr_context), KNOB_SIMD_BYTES); + memset(ctx, 0, sizeof(struct swr_context)); + ctx->blendJIT = new std::unordered_map<BLEND_COMPILE_STATE, PFN_BLEND_JIT_FUNC>; _______________________________________________ mesa-commit mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-commit
