vc4: Optimize CL emits by doing size checks up front.

[mesa.git] / src / gallium / drivers / vc4 / vc4_draw.c

diff --git a/src/gallium/drivers/vc4/vc4_draw.c b/src/gallium/drivers/vc4/vc4_draw.c
index 79d7d73c660487a26d56c66060716b6d9bdca411..d99faa41c547373d34dba4d71cc522e72693fc42 100644 (file)
--- a/src/gallium/drivers/vc4/vc4_draw.c
+++ b/src/gallium/drivers/vc4/vc4_draw.c
@@ -29,6 +29,32 @@
 #include "vc4_context.h"
 #include "vc4_resource.h"
 
+static void
+vc4_get_draw_cl_space(struct vc4_context *vc4)
+{
+        /* Binner gets our packet state -- vc4_emit.c contents,
+         * and the primitive itself.
+         */
+        cl_ensure_space(&vc4->bcl, 256);
+
+        /* Nothing for rcl -- that's covered by vc4_context.c */
+
+        /* shader_rec gets up to 12 dwords of reloc handles plus a maximally
+         * sized shader_rec (104 bytes base for 8 vattrs plus 32 bytes of
+         * vattr stride).
+         */
+        cl_ensure_space(&vc4->shader_rec, 12 * sizeof(uint32_t) + 104 + 8 * 32);
+
+        /* Uniforms are covered by vc4_write_uniforms(). */
+
+        /* There could be up to 16 textures per stage, plus misc other
+         * pointers.
+         */
+        cl_ensure_space(&vc4->bo_handles, (2 * 16 + 20) * sizeof(uint32_t));
+        cl_ensure_space(&vc4->bo_pointers,
+                        (2 * 16 + 20) * sizeof(struct vc4_bo *));
+}
+
 /**
  * Does the initial bining command list setup for drawing to a given FBO.
  */
@@ -38,6 +64,8 @@ vc4_start_draw(struct vc4_context *vc4)
         if (vc4->needs_flush)
                 return;
 
+        vc4_get_draw_cl_space(vc4);
+
         uint32_t width = vc4->framebuffer.width;
         uint32_t height = vc4->framebuffer.height;
         uint32_t tilew = align(width, 64) / 64;
@@ -114,6 +142,8 @@ vc4_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info)
                 return;
         }
 
+        vc4_get_draw_cl_space(vc4);
+
         struct vc4_vertex_stateobj *vtx = vc4->vtx;
         struct vc4_vertexbuf_stateobj *vertexbuf = &vc4->vertexbuf;