{
const struct fd_vertex_state *vtx = emit->vtx;
+ /* Limit PKT4 size, because at max count (32) we would overflow the
+ * size of the PKT4 size field:
+ */
+ const unsigned maxcnt = 16;
+ const unsigned cnt = vtx->vertexbuf.count;
+ const unsigned dwords = (cnt * 4) /* per vbo: reg64 + two reg32 */
+ + (1 + cnt / maxcnt); /* PKT4 hdr every 16 vbo's */
+
struct fd_ringbuffer *ring = fd_submit_new_ringbuffer(
- emit->ctx->batch->submit, 4 * (1 + vtx->vertexbuf.count * 4),
- FD_RINGBUFFER_STREAMING);
+ emit->ctx->batch->submit, 4 * dwords, FD_RINGBUFFER_STREAMING);
- OUT_PKT4(ring, REG_A6XX_VFD_FETCH(0), 4 * vtx->vertexbuf.count);
- for (int32_t j = 0; j < vtx->vertexbuf.count; j++) {
+ for (int32_t j = 0; j < cnt; j++) {
+ if ((j % maxcnt) == 0) {
+ unsigned sz = MIN2(maxcnt, cnt - j);
+ OUT_PKT4(ring, REG_A6XX_VFD_FETCH(j), 4 * sz);
+ }
const struct pipe_vertex_buffer *vb = &vtx->vertexbuf.vb[j];
struct fd_resource *rsc = fd_resource(vb->buffer.resource);
if (rsc == NULL) {