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r600g/sb: fix kcache handling on r6xx

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Use the same limit for kcache constants in alu group on r6xx as on other
chips (two const pairs). Relaxing this will require additional checks to
make sure that all 4 consts in the group come from 2 kcache sets (clause
limit), probably without noticeable improvements of shader performance.

Signed-off-by: Vadim Girlin <vadimgirlin@gmail.com>
This commit is contained in:
Vadim Girlin 2013-05-05 06:01:20 +04:00
parent 03ef60681e
commit 1c28e7c5a1
1 changed files with 5 additions and 1 deletions
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6
src/gallium/drivers/r600/sb/sb_sched.cpp
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@ -43,7 +43,11 @@ namespace r600_sb {
using std::cerr;
rp_kcache_tracker::rp_kcache_tracker(shader &sh) : rp(), uc(),
sel_count(sh.get_ctx().is_r600() ? 4 : 2) {}
// FIXME: for now we'll use "two const pairs" limit for r600, same as
// for other chips, otherwise additional check in alu_group_tracker is
// required to make sure that all 4 consts in the group fit into 2
// kcache sets
sel_count(2) {}
bool rp_kcache_tracker::try_reserve(sel_chan r) {
unsigned sel = kc_sel(r);