1 files changed, 102 insertions, 0 deletions
diff --git a/src/panfrost/pandecode/common.c b/src/panfrost/pandecode/common.c
new file mode 100644
index 00000000000..6196379c969
--- /dev/null
+++ b/src/panfrost/pandecode/common.c
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2019 Alyssa Rosenzweig
+ * Copyright (C) 2017-2018 Lyude Paul
+ * Copyright (C) 2019 Collabora, Ltd.
+ *
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "decode.h"
+#include "util/macros.h"
+
+/* Memory handling */
+
+static struct pandecode_mapped_memory mmaps;
+
+struct pandecode_mapped_memory *
+pandecode_find_mapped_gpu_mem_containing(mali_ptr addr)
+{
+        list_for_each_entry(struct pandecode_mapped_memory, pos, &mmaps.node, node) {
+                if (addr >= pos->gpu_va && addr < pos->gpu_va + pos->length)
+                        return pos;
+        }
+
+        return NULL;
+}
+
+void
+pandecode_inject_mmap(mali_ptr gpu_va, void *cpu, unsigned sz, const char *name)
+{
+        struct pandecode_mapped_memory *mapped_mem = NULL;
+
+        mapped_mem = malloc(sizeof(*mapped_mem));
+        list_inithead(&mapped_mem->node);
+
+        mapped_mem->gpu_va = gpu_va;
+        mapped_mem->length = sz;
+        mapped_mem->addr = cpu;
+
+        if (!name) {
+                /* If we don't have a name, assign one */
+
+                snprintf(mapped_mem->name, ARRAY_SIZE(mapped_mem->name) - 1,
+                                "memory_%" PRIx64, gpu_va);
+        } else {
+                assert(strlen(name) < ARRAY_SIZE(mapped_mem->name));
+                memcpy(mapped_mem->name, name, strlen(name));
+        }
+
+        list_add(&mapped_mem->node, &mmaps.node);
+}
+
+char *
+pointer_as_memory_reference(mali_ptr ptr)
+{
+        struct pandecode_mapped_memory *mapped;
+        char *out = malloc(128);
+
+        /* Try to find the corresponding mapped zone */
+
+        mapped = pandecode_find_mapped_gpu_mem_containing(ptr);
+
+        if (mapped) {
+                snprintf(out, 128, "%s + %d", mapped->name, (int) (ptr - mapped->gpu_va));
+                return out;
+        }
+
+        /* Just use the raw address if other options are exhausted */
+
+        snprintf(out, 128, MALI_PTR_FMT, ptr);
+        return out;
+
+}
+
+void
+pandecode_initialize(void)
+{
+        list_inithead(&mmaps.node);
+
+}