Module: Mesa Branch: master Commit: d5c3aa89dc4a8de048920470300bb8a921e72899 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=d5c3aa89dc4a8de048920470300bb8a921e72899
Author: Matt Turner <[email protected]> Date: Mon Feb 11 11:06:13 2013 -0800 i965/gen7: Relax restrictions on fake MRFs Gen6 has write-only MRF registers, and for ease of implementation we paritition off 16 general purposes registers to act as MRFs on Gen7. Knowing that our Gen7 MRFs are actually GRFs, we can do things we can't do with real MRFs: - read from them; - return values directly to them from a send instruction; and - compute directly to them with math instructions. Reviewed-by: Eric Anholt <[email protected]> --- src/mesa/drivers/dri/i965/brw_eu_emit.c | 6 ++++-- 1 files changed, 4 insertions(+), 2 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_eu_emit.c b/src/mesa/drivers/dri/i965/brw_eu_emit.c index f2dcbeb..cf0a894 100644 --- a/src/mesa/drivers/dri/i965/brw_eu_emit.c +++ b/src/mesa/drivers/dri/i965/brw_eu_emit.c @@ -1708,7 +1708,8 @@ void brw_math( struct brw_compile *p, if (intel->gen >= 6) { struct brw_instruction *insn = next_insn(p, BRW_OPCODE_MATH); - assert(dest.file == BRW_GENERAL_REGISTER_FILE); + assert(dest.file == BRW_GENERAL_REGISTER_FILE || + (intel->gen >= 7 && dest.file == BRW_MESSAGE_REGISTER_FILE)); assert(src.file == BRW_GENERAL_REGISTER_FILE); assert(dest.hstride == BRW_HORIZONTAL_STRIDE_1); @@ -1772,7 +1773,8 @@ void brw_math2(struct brw_compile *p, (void) intel; - assert(dest.file == BRW_GENERAL_REGISTER_FILE); + assert(dest.file == BRW_GENERAL_REGISTER_FILE || + (intel->gen >= 7 && dest.file == BRW_MESSAGE_REGISTER_FILE)); assert(src0.file == BRW_GENERAL_REGISTER_FILE); assert(src1.file == BRW_GENERAL_REGISTER_FILE); _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
