1 files changed, 90 insertions, 0 deletions
diff --git a/src/gallium/drivers/v3d/v3d_cl.c b/src/gallium/drivers/v3d/v3d_cl.c
new file mode 100644
index 00000000000..2ffb7ea9a2c
--- /dev/null
+++ b/src/gallium/drivers/v3d/v3d_cl.c
@@ -0,0 +1,90 @@
+/*
+ * Copyright © 2014-2017 Broadcom
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "util/u_math.h"
+#include "util/ralloc.h"
+#include "v3d_context.h"
+/* The branching packets are the same across V3D versions. */
+#define V3D_VERSION 33
+#include "broadcom/common/v3d_macros.h"
+#include "broadcom/cle/v3dx_pack.h"
+
+void
+vc5_init_cl(struct vc5_job *job, struct vc5_cl *cl)
+{
+        cl->base = NULL;
+        cl->next = cl->base;
+        cl->size = 0;
+        cl->job = job;
+}
+
+uint32_t
+vc5_cl_ensure_space(struct vc5_cl *cl, uint32_t space, uint32_t alignment)
+{
+        uint32_t offset = align(cl_offset(cl), alignment);
+
+        if (offset + space <= cl->size) {
+                cl->next = cl->base + offset;
+                return offset;
+        }
+
+        vc5_bo_unreference(&cl->bo);
+        cl->bo = vc5_bo_alloc(cl->job->vc5->screen, align(space, 4096), "CL");
+        cl->base = vc5_bo_map(cl->bo);
+        cl->size = cl->bo->size;
+        cl->next = cl->base;
+
+        return 0;
+}
+
+void
+vc5_cl_ensure_space_with_branch(struct vc5_cl *cl, uint32_t space)
+{
+        if (cl_offset(cl) + space + cl_packet_length(BRANCH) <= cl->size)
+                return;
+
+        struct vc5_bo *new_bo = vc5_bo_alloc(cl->job->vc5->screen, 4096, "CL");
+        assert(space <= new_bo->size);
+
+        /* Chain to the new BO from the old one. */
+        if (cl->bo) {
+                cl_emit(cl, BRANCH, branch) {
+                        branch.address = cl_address(new_bo, 0);
+                }
+                vc5_bo_unreference(&cl->bo);
+        } else {
+                /* Root the first RCL/BCL BO in the job. */
+                vc5_job_add_bo(cl->job, cl->bo);
+        }
+
+        cl->bo = new_bo;
+        cl->base = vc5_bo_map(cl->bo);
+        cl->size = cl->bo->size;
+        cl->next = cl->base;
+}
+
+void
+vc5_destroy_cl(struct vc5_cl *cl)
+{
+        vc5_bo_unreference(&cl->bo);
+}