diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen7_blorp.cpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/gen7_blorp.cpp b/src/mesa/drivers/dri/i965/gen7_blorp.cpp index b41717db249..04548bf63b8 100644 --- a/src/mesa/drivers/dri/i965/gen7_blorp.cpp +++ b/src/mesa/drivers/dri/i965/gen7_blorp.cpp @@ -472,7 +472,15 @@ gen7_blorp_emit_ps_config(struct brw_context *brw, dw2 = dw4 = dw5 = 0; dw4 |= (brw->max_wm_threads - 1) << max_threads_shift; - dw4 |= GEN7_PS_32_DISPATCH_ENABLE; + + /* If there's a WM program, we need to do 16-pixel dispatch since that's + * what the program is compiled for. If there isn't, then it shouldn't + * matter because no program is actually being run. However, the hardware + * gets angry if we don't enable at least one dispatch mode, so just enable + * 16-pixel dispatch unconditionally. + */ + dw4 |= GEN7_PS_16_DISPATCH_ENABLE; + if (intel->is_haswell) dw4 |= SET_FIELD(1, HSW_PS_SAMPLE_MASK); /* 1 sample for now */ if (params->use_wm_prog) { |