{
/* TODO: For indirect draws, we can't compute the BO size ahead of time.
* Still not sure what to do here, so just allocate a reasonably large
- * BO and hope for the best for now.
- * (maxTessellationControlPerVertexOutputComponents * 2048 vertices +
- * maxTessellationControlPerPatchOutputComponents * 512 patches) */
- if (!draw_count) {
- return ((128 * 2048) + (128 * 512)) * 4;
- }
+ * BO and hope for the best for now. */
+ if (!draw_count)
+ draw_count = 2048;
- /* For each patch, adreno lays out the tess param BO in memory as:
- * (v_input[0][0])...(v_input[i][j])(p_input[0])...(p_input[k]).
- * where i = # vertices per patch, j = # per-vertex outputs, and
- * k = # per-patch outputs.*/
+ /* the tess param BO is pipeline->tess.param_stride bytes per patch,
+ * which includes both the per-vertex outputs and per-patch outputs
+ * build_primitive_map in ir3 calculates this stride
+ */
uint32_t verts_per_patch = pipeline->ia.primtype - DI_PT_PATCHES0;
uint32_t num_patches = draw_count / verts_per_patch;
- return draw_count * pipeline->tess.per_vertex_output_size +
- pipeline->tess.per_patch_output_size * num_patches;
+ return num_patches * pipeline->tess.param_stride;
}
static uint64_t
{
/* TODO: For indirect draws, we can't compute the BO size ahead of time.
* Still not sure what to do here, so just allocate a reasonably large
- * BO and hope for the best for now.
- * (quad factor stride * 512 patches) */
- if (!draw_count) {
- return (28 * 512) * 4;
- }
+ * BO and hope for the best for now. */
+ if (!draw_count)
+ draw_count = 2048;
/* Each distinct patch gets its own tess factor output. */
uint32_t verts_per_patch = pipeline->ia.primtype - DI_PT_PATCHES0;