heap: Refactor heap regions/capabilities out of FreeRTOS

Remove tagged heap API, rename caps_xxx to heap_caps_xxx

Also includes additional heap_caps_xxx inspection functions.

components/soc/include/soc/soc_memory_layout.h

@@ -0,0 +1,61 @@
+// Copyright 2010-2016 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+#pragma once
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+#include "soc/soc.h"
+
+#define SOC_HEAP_TAG_NO_PRIOS 3
+
+/* Tag descriptor holds a description for a particular 'tagged' type of memory on a particular SoC.
+ */
+typedef struct {
+    const char *name;  ///< Name of this tag
+    uint32_t caps[SOC_HEAP_TAG_NO_PRIOS]; ///< Capabilities for this tag (as a prioritised set)
+    bool aliased_iram;   ///< If true, this tag is also mapped in IRAM
+    bool startup_stack; ///< If true, this tag is used for ROM stack during startup
+} soc_memory_tag_desc_t;
+
+/* Constant table of tag descriptors for all this SoC's tags */
+extern const soc_memory_tag_desc_t soc_memory_tags[];
+extern const size_t soc_memory_tag_count;
+
+/* Region descriptor holds a description for a particular region of memory on a particular SoC.
+ */
+typedef struct
+{
+    intptr_t start;  ///< Start address of the region
+    size_t size;            ///< Size of the region in bytes
+    size_t tag;             ///< Tag for the region (index into soc_memory_tag_descriptors)
+    intptr_t iram_address; ///< If non-zero, is equivalent address in IRAM
+} soc_memory_region_t;
+
+extern const soc_memory_region_t soc_memory_regions[];
+extern const size_t soc_memory_region_count;
+
+/* Region descriptor holds a description for a particular region of
+   memory reserved on this SoC for a particular use (ie not available
+   for stack/heap usage.) */
+typedef struct
+{
+    intptr_t start;
+    intptr_t end;
+} soc_reserved_region_t;
+
+extern const soc_reserved_region_t soc_reserved_regions[];
+extern const size_t soc_reserved_region_count;
+
+