On Wednesday, November 16, 2016 11:06:44 AM PST Pohjolainen, Topi wrote:
> On Tue, Nov 15, 2016 at 05:54:00PM -0800, Kenneth Graunke wrote:
> > The context fields are for Gen4-5; setting them has always been useless.
> > There's no point in spending the cost in the hottest path in the driver.
> >
> > Signed-off-by: Kenneth Graunke <kenn...@whitecape.org>
> > ---
> > src/mesa/drivers/dri/i965/gen7_urb.c | 25 ++++++++-----------------
> > 1 file changed, 8 insertions(+), 17 deletions(-)
> >
> > diff --git a/src/mesa/drivers/dri/i965/gen7_urb.c
> > b/src/mesa/drivers/dri/i965/gen7_urb.c
> > index eca0336..61fd774 100644
> > --- a/src/mesa/drivers/dri/i965/gen7_urb.c
> > +++ b/src/mesa/drivers/dri/i965/gen7_urb.c
> > @@ -414,15 +414,6 @@ gen7_upload_urb(struct brw_context *brw, unsigned
> > vs_size,
> > assert(nr_ds_entries >=
> > devinfo->urb.min_entries[MESA_SHADER_TESS_EVAL]);
> > }
> >
> > - /* Gen7 doesn't actually use brw->urb.nr_{vs,gs}_entries, but it seems
> > - * better to put reasonable data in there rather than leave them
> > - * uninitialized.
> > - */
> > - brw->urb.nr_vs_entries = nr_vs_entries;
> > - brw->urb.nr_hs_entries = nr_hs_entries;
> > - brw->urb.nr_ds_entries = nr_ds_entries;
> > - brw->urb.nr_gs_entries = nr_gs_entries;
> > -
> > /* Lay out the URB in the following order:
> > * - push constants
> > * - VS
> > @@ -430,19 +421,19 @@ gen7_upload_urb(struct brw_context *brw, unsigned
> > vs_size,
> > * - DS
> > * - GS
> > */
> > - brw->urb.vs_start = push_constant_chunks;
> > - brw->urb.hs_start = push_constant_chunks + vs_chunks;
> > - brw->urb.ds_start = push_constant_chunks + vs_chunks + hs_chunks;
> > - brw->urb.gs_start = push_constant_chunks + vs_chunks + hs_chunks +
> > + unsigned vs_start = push_constant_chunks;
> > + unsigned hs_start = push_constant_chunks + vs_chunks;
> > + unsigned ds_start = push_constant_chunks + vs_chunks + hs_chunks;
> > + unsigned gs_start = push_constant_chunks + vs_chunks + hs_chunks +
> > ds_chunks;
>
> All these four could be const.Yeah...but they're all going away in the next patch anyway :) --Ken
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