From: Marek Olšák <[email protected]>
Cc: 17.0 17.1 <[email protected]>
---
src/gallium/drivers/radeonsi/si_state_shaders.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c
b/src/gallium/drivers/radeonsi/si_state_shaders.c
index 34cd6d4..3a604eb 100644
--- a/src/gallium/drivers/radeonsi/si_state_shaders.c
+++ b/src/gallium/drivers/radeonsi/si_state_shaders.c
@@ -2108,21 +2108,24 @@ static bool si_update_gs_ring_buffers(struct si_context
*sctx)
{
struct si_shader_selector *es =
sctx->tes_shader.cso ? sctx->tes_shader.cso :
sctx->vs_shader.cso;
struct si_shader_selector *gs = sctx->gs_shader.cso;
struct si_pm4_state *pm4;
/* Chip constants. */
unsigned num_se = sctx->screen->b.info.max_se;
unsigned wave_size = 64;
unsigned max_gs_waves = 32 * num_se; /* max 32 per SE on GCN */
- unsigned gs_vertex_reuse = 16 * num_se; /* GS_VERTEX_REUSE register
(per SE) */
+ /* On SI-CI, the value comes from VGT_GS_VERTEX_REUSE = 16.
+ * On VI+, the value comes from VGT_VERTEX_REUSE_BLOCK_CNTL = 30 (+2).
+ */
+ unsigned gs_vertex_reuse = (sctx->b.chip_class >= VI ? 32 : 16) *
num_se;
unsigned alignment = 256 * num_se;
/* The maximum size is 63.999 MB per SE. */
unsigned max_size = ((unsigned)(63.999 * 1024 * 1024) & ~255) * num_se;
/* Calculate the minimum size. */
unsigned min_esgs_ring_size = align(es->esgs_itemsize * gs_vertex_reuse
*
wave_size, alignment);
/* These are recommended sizes, not minimum sizes. */
unsigned esgs_ring_size = max_gs_waves * 2 * wave_size *
--
2.7.4
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