[incubator-nuttx] 02/06: MPFS: Add page pool allocation

[xi...@apache.org]

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xiaoxiang pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx.git

commit 3f6504076e98d55de395ad753339aa2ccdac5321
Author: Ville Juven <vi...@unikie.com>
AuthorDate: Wed Apr 13 10:14:34 2022 +0300

    MPFS: Add page pool allocation
---
 arch/risc-v/src/mpfs/Make.defs      |  4 +++
 arch/risc-v/src/mpfs/mpfs_pgalloc.c | 67 +++++++++++++++++++++++++++++++++++++
 2 files changed, 71 insertions(+)

diff --git a/arch/risc-v/src/mpfs/Make.defs b/arch/risc-v/src/mpfs/Make.defs
index a669aafe1f..8e8685998c 100755
--- a/arch/risc-v/src/mpfs/Make.defs
+++ b/arch/risc-v/src/mpfs/Make.defs
@@ -99,6 +99,10 @@ ifeq ($(CONFIG_ARCH_ADDRENV),y)
 CMN_CSRCS += riscv_addrenv.c riscv_pgalloc.c
 endif
 
+ifeq ($(CONFIG_MM_PGALLOC),y)
+CHIP_CSRCS += mpfs_pgalloc.c
+endif
+
 ifeq ($(CONFIG_SPI),y)
 CHIP_CSRCS += mpfs_spi.c
 endif
diff --git a/arch/risc-v/src/mpfs/mpfs_pgalloc.c b/arch/risc-v/src/mpfs/mpfs_pgalloc.c
new file mode 100644
index 0000000000..d48dd19b7c
--- /dev/null
+++ b/arch/risc-v/src/mpfs/mpfs_pgalloc.c
@@ -0,0 +1,67 @@
+/****************************************************************************
+ * arch/risc-v/src/mpfs/mpfs_pgalloc.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/arch.h>
+#include <nuttx/config.h>
+#include <nuttx/pgalloc.h>
+
+#include <assert.h>
+#include <debug.h>
+
+#include <arch/board/board_memorymap.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_allocate_pgheap
+ *
+ * Description:
+ *   If there is a page allocator in the configuration, then this function
+ *   must be provided by the platform-specific code.  The OS initialization
+ *   logic will call this function early in the initialization sequence to
+ *   get the page heap information needed to configure the page allocator.
+ *
+ ****************************************************************************/
+
+void up_allocate_pgheap(void **heap_start, size_t *heap_size)
+{
+  DEBUGASSERT(heap_start && heap_size);
+
+  *heap_start = (void *)PGPOOL_START;
+  *heap_size  = (size_t)PGPOOL_SIZE;
+}