1 files changed, 96 insertions, 0 deletions
diff --git a/src/gallium/drivers/vc4/vc4_simulator.c b/src/gallium/drivers/vc4/vc4_simulator.c
new file mode 100644
index 00000000000..bd938b2644c
--- /dev/null
+++ b/src/gallium/drivers/vc4/vc4_simulator.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright © 2014 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.
+ */
+
+#ifdef USE_VC4_SIMULATOR
+
+#include <stdio.h>
+
+#include "vc4_screen.h"
+#include "vc4_context.h"
+#include "simpenrose/simpenrose.h"
+
+void
+vc4_simulator_flush(struct vc4_context *vc4, struct vc4_surface *csurf)
+{
+        struct vc4_resource *ctex = vc4_resource(csurf->base.texture);
+        uint32_t winsys_stride = ctex->bo->simulator_winsys_stride;
+        uint32_t sim_stride = ctex->slices[0].stride;
+        uint32_t row_len = MIN2(sim_stride, winsys_stride);
+
+        if (ctex->bo->simulator_winsys_map) {
+#if 0
+                fprintf(stderr, "%dx%d %d %d %d\n",
+                        ctex->base.b.width0, ctex->base.b.height0,
+                        winsys_stride,
+                        sim_stride,
+                        ctex->bo->size);
+#endif
+
+                for (int y = 0; y < ctex->base.b.height0; y++) {
+                        memcpy(ctex->bo->map + y * sim_stride,
+                               ctex->bo->simulator_winsys_map + y * winsys_stride,
+                               row_len);
+                }
+        }
+
+        simpenrose_do_binning(simpenrose_hw_addr(vc4->bcl.base),
+                              simpenrose_hw_addr(vc4->bcl.next));
+        simpenrose_do_rendering(simpenrose_hw_addr(vc4->rcl.base),
+                                simpenrose_hw_addr(vc4->rcl.next));
+
+        if (ctex->bo->simulator_winsys_map) {
+                for (int y = 0; y < ctex->base.b.height0; y++) {
+                        memcpy(ctex->bo->simulator_winsys_map + y * winsys_stride,
+                               ctex->bo->map + y * sim_stride,
+                               row_len);
+                }
+        }
+}
+
+void
+vc4_simulator_init(struct vc4_screen *screen)
+{
+        simpenrose_init_hardware();
+        screen->simulator_mem_base = simpenrose_get_mem_start();
+        screen->simulator_mem_size = simpenrose_get_mem_size();
+}
+
+/**
+ * Allocates GPU memory in the simulator's address space.
+ *
+ * We just allocate for the lifetime of the context now, but some day we'll
+ * want an actual memory allocator at runtime.
+ */
+void *
+vc4_simulator_alloc(struct vc4_screen *screen, uint32_t size)
+{
+        void *alloc = screen->simulator_mem_base + screen->simulator_mem_next;
+
+        screen->simulator_mem_next += size;
+        assert(screen->simulator_mem_next < screen->simulator_mem_size);
+        screen->simulator_mem_next = align(screen->simulator_mem_next, 4096);
+
+        return alloc;
+}
+
+#endif /* USE_VC4_SIMULATOR */