diff options
| author | Eric Anholt <[email protected]> | 2014-05-21 14:31:31 -0700 |
|---|---|---|
| committer | Kenneth Graunke <[email protected]> | 2014-07-02 12:45:59 -0700 |
| commit | 6ded75ed08aed8a88b638c664efbfe14e0476f37 (patch) | |
| tree | 645817b41a4cf5a299cc0167b31f5887c272760e /src/mesa | |
| parent | e874274d0847733b2ae6c2efb911145d2da6e6b6 (diff) | |
i965/gen6: Add a spec citation about push constant packet requirements.
Reviewed-by: Kenneth Graunke <[email protected]>
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen6_wm_state.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/gen6_wm_state.c b/src/mesa/drivers/dri/i965/gen6_wm_state.c index db0e3aaaef7..047e036f5b6 100644 --- a/src/mesa/drivers/dri/i965/gen6_wm_state.c +++ b/src/mesa/drivers/dri/i965/gen6_wm_state.c @@ -76,7 +76,14 @@ upload_wm_state(struct brw_context *brw) /* _NEW_BUFFERS */ bool multisampled_fbo = ctx->DrawBuffer->Visual.samples > 1; - /* CACHE_NEW_WM_PROG */ + /* CACHE_NEW_WM_PROG + * + * We can't fold this into gen6_upload_wm_push_constants(), because + * according to the SNB PRM, vol 2 part 1 section 7.2.2 + * (3DSTATE_CONSTANT_PS [DevSNB]): + * + * "[DevSNB]: This packet must be followed by WM_STATE." + */ if (brw->wm.prog_data->base.nr_params == 0) { /* Disable the push constant buffers. */ BEGIN_BATCH(5); |