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radeonsi: fix a hang with DrawTransformFeedback on 4 SE chips

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Cc: 10.6 10.5 <mesa-stable@lists.freedesktop.org>
Acked-by: Christian König <christain.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit d3f4f6b2e9)
This commit is contained in:
Marek Olšák 2015-06-24 11:58:50 +02:00 • committed by Emil Velikov
parent e529d5ffb4
commit 03cf14a713
1 changed files with 4 additions and 0 deletions
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4
src/gallium/drivers/radeonsi/si_state_draw.c
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@ -139,6 +139,10 @@ static unsigned si_get_ia_multi_vgt_param(struct si_context *sctx,
(info->indirect || info->instance_count > 1))
wd_switch_on_eop = true;
/* USE_OPAQUE doesn't work when WD_SWITCH_ON_EOP is 0. */
if (info->count_from_stream_output)
wd_switch_on_eop = true;
/* If the WD switch is false, the IA switch must be false too. */
assert(wd_switch_on_eop || !ia_switch_on_eop);
}