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radeonsi/gfx10: implement a bug workaround for NGG -> legacy transitions

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Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
This commit is contained in:
Marek Olšák 2019-07-30 18:40:22 -04:00
parent cb9d95623b
commit 8f8c28767e
2 changed files with 16 additions and 2 deletions
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8
src/gallium/drivers/radeonsi/si_state_draw.c
View file

@ -1106,10 +1106,14 @@ void gfx10_emit_cache_flush(struct si_context *ctx)
}
/* We don't need these. */
assert(!(flags & (SI_CONTEXT_VGT_FLUSH |
SI_CONTEXT_VGT_STREAMOUT_SYNC |
assert(!(flags & (SI_CONTEXT_VGT_STREAMOUT_SYNC |
SI_CONTEXT_FLUSH_AND_INV_DB_META)));
if (flags & SI_CONTEXT_VGT_FLUSH) {
radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
radeon_emit(cs, EVENT_TYPE(V_028A90_VGT_FLUSH) | EVENT_INDEX(0));
}
if (flags & SI_CONTEXT_FLUSH_AND_INV_CB)
ctx->num_cb_cache_flushes++;
if (flags & SI_CONTEXT_FLUSH_AND_INV_DB)

10
src/gallium/drivers/radeonsi/si_state_shaders.c
View file

@ -3022,6 +3022,16 @@ static bool si_update_ngg(struct si_context *sctx)
new_ngg = false;
if (new_ngg != sctx->ngg) {
/* Transitioning from NGG to legacy GS requires VGT_FLUSH on Navi10-14.
* VGT_FLUSH is also emitted at the beginning of IBs when legacy GS ring
* pointers are set.
*/
if ((sctx->family == CHIP_NAVI10 ||
sctx->family == CHIP_NAVI12 ||
sctx->family == CHIP_NAVI14) &&
!new_ngg)
sctx->flags |= SI_CONTEXT_VGT_FLUSH;
sctx->ngg = new_ngg;
sctx->last_rast_prim = -1; /* reset this so that it gets updated */
return true;