Rename files for kernel namespace script

This makes it easier to create the kernel namespace header.

1 files changed, 157 insertions, 0 deletions

diff --git a/rtemsbsd/rtems/rtems-kernel-page.c b/rtemsbsd/rtems/rtems-kernel-page.c
new file mode 100644
index 00000000..b3f4325d
--- /dev/null
+++ b/rtemsbsd/rtems/rtems-kernel-page.c
@@ -0,0 +1,157 @@
+/**
+ * @file
+ *
+ * @ingroup rtems_bsd_rtems
+ *
+ * @brief TODO.
+ */
+
+/*
+ * Copyright (c) 2015 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <machine/rtems-bsd-kernel-space.h>
+#include <machine/rtems-bsd-page.h>
+
+#include <rtems/bsd/sys/param.h>
+#include <rtems/bsd/sys/types.h>
+#include <rtems/bsd/sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <vm/uma.h>
+
+#include <stdlib.h>
+
+#include <rtems/bsd/bsd.h>
+#include <rtems/malloc.h>
+#include <rtems/rbheap.h>
+
+void **rtems_bsd_page_object_table;
+
+uintptr_t rtems_bsd_page_area_begin;
+
+static rtems_rbheap_control page_heap;
+
+struct mtx page_heap_mtx;
+
+void *
+rtems_bsd_page_alloc(uintptr_t size_in_bytes, int wait)
+{
+	void *addr;
+
+	mtx_lock(&page_heap_mtx);
+
+	addr = rtems_rbheap_allocate(&page_heap, size_in_bytes);
+	if (addr == NULL && wait) {
+		int i;
+
+		for (i = 0; i < 8; i++) {
+			mtx_unlock(&page_heap_mtx);
+			uma_reclaim();
+			mtx_lock(&page_heap_mtx);
+
+			addr = rtems_rbheap_allocate(&page_heap, size_in_bytes);
+			if (addr != NULL)
+				break;
+
+			msleep(&page_heap, &page_heap_mtx, 0,
+			    "page alloc", (hz / 4) * (i + 1));
+		}
+
+		if (i == 8) {
+			panic("rtems_bsd_page_alloc: page starvation");
+		}
+	}
+
+	mtx_unlock(&page_heap_mtx);
+
+#ifdef INVARIANTS
+	if (addr != NULL) {
+		memset(addr, 0, size_in_bytes);
+	}
+#endif
+
+	return (addr);
+}
+
+void
+rtems_bsd_page_free(void *addr)
+{
+	mtx_lock(&page_heap_mtx);
+	rtems_rbheap_free(&page_heap, addr);
+	wakeup(&page_heap);
+	mtx_unlock(&page_heap_mtx);
+}
+
+static void
+rtems_bsd_page_init(void *arg)
+{
+	rtems_status_code sc;
+	void *area;
+	void **obj_table;
+	rtems_rbheap_chunk *chunks;
+	size_t i;
+	size_t n;
+	uintptr_t heap_size;
+
+	mtx_init(&page_heap_mtx, "page heap", NULL, MTX_DEF);
+
+	heap_size = rtems_bsd_get_allocator_domain_size(
+	    RTEMS_BSD_ALLOCATOR_DOMAIN_PAGE);
+
+	area = rtems_heap_allocate_aligned_with_boundary(heap_size, PAGE_SIZE,
+	    0);
+	BSD_ASSERT(area != NULL);
+
+	sc = rtems_rbheap_initialize(&page_heap, area, heap_size, PAGE_SIZE,
+	    rtems_rbheap_extend_descriptors_with_malloc, NULL);
+	BSD_ASSERT(sc == RTEMS_SUCCESSFUL);
+
+	rtems_rbheap_set_extend_descriptors(&page_heap,
+	    rtems_rbheap_extend_descriptors_never);
+
+	n = heap_size / PAGE_SIZE;
+
+	chunks = malloc(n * sizeof(*chunks), M_RTEMS_HEAP, M_NOWAIT);
+	BSD_ASSERT(chunks != NULL);
+
+	for (i = 0; i < n; ++i) {
+		rtems_rbheap_add_to_spare_descriptor_chain(&page_heap,
+		    &chunks[i]);
+	}
+
+	obj_table = calloc(n, sizeof(*obj_table));
+
+	rtems_bsd_page_area_begin = (uintptr_t)area;
+	rtems_bsd_page_object_table = obj_table;
+}
+
+SYSINIT(rtems_bsd_page, SI_SUB_VM, SI_ORDER_FIRST, rtems_bsd_page_init, NULL);