diff options
| author | Iago Toral Quiroga <[email protected]> | 2016-06-28 11:54:07 +0200 |
|---|---|---|
| committer | Samuel Iglesias Gonsálvez <[email protected]> | 2017-01-03 11:26:51 +0100 |
| commit | 07bc6a35d3d6d94d45b81bd10002f0e420d855c2 (patch) | |
| tree | 5e11e678cd2c97de3090db27f1b634fc625ae0e5 | |
| parent | 2a857104e41167cef3c6a5132a45c88056c75dff (diff) | |
i965/vec4: do not split scratch read/write opcodes
64-bit scratch read/writes require to shuffle data around so we need
to have access to the full 64-bit data. We will do the right thing
for these when we emit the messages.
Reviewed-by: Matt Turner <[email protected]>
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vec4.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp b/src/mesa/drivers/dri/i965/brw_vec4.cpp index f198fad8514..29bf7863d69 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4.cpp +++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp @@ -2035,6 +2035,15 @@ static unsigned get_lowered_simd_width(const struct gen_device_info *devinfo, const vec4_instruction *inst) { + /* Do not split some instructions that require special handling */ + switch (inst->opcode) { + case SHADER_OPCODE_GEN4_SCRATCH_READ: + case SHADER_OPCODE_GEN4_SCRATCH_WRITE: + return inst->exec_size; + default: + break; + } + unsigned lowered_width = MIN2(16, inst->exec_size); /* We need to split some cases of double-precision instructions that write |