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radeonsi: fix a hang with instancing in Unigine Heaven/Valley on Hawaii 

This isn't documented anywhere, but it's the only thing that works
for this case.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Marek Olšák 2014-08-06 02:11:04 +02:00
parent 085a861545
commit 515269b3a7
1 changed files with 2 additions and 5 deletions
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7
src/gallium/drivers/radeonsi/si_state_draw.c
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@ -411,14 +411,11 @@ static bool si_update_draw_info_state(struct si_context *sctx,
bool ia_switch_on_eop = wd_switch_on_eop;
unsigned primgroup_size = 64;
/* Hawaii hangs if instancing is enabled and each instance
* is smaller than a prim group and WD_SWITCH_ON_EOP is 0.
/* Hawaii hangs if instancing is enabled and WD_SWITCH_ON_EOP is 0.
* We don't know that for indirect drawing, so treat it as
* always problematic. */
if (sctx->b.family == CHIP_HAWAII &&
(info->indirect ||
(info->instance_count > 1 &&
u_prims_for_vertices(info->mode, info->count) < primgroup_size))) {
(info->indirect || info->instance_count > 1)) {
wd_switch_on_eop = true;
ia_switch_on_eop = true;
}