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-rw-r--r--grub-core/mmap/mips/yeeloong/uppermem.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/grub-core/mmap/mips/yeeloong/uppermem.c b/grub-core/mmap/mips/yeeloong/uppermem.c
new file mode 100644
index 0000000..723b6a8
--- /dev/null
+++ b/grub-core/mmap/mips/yeeloong/uppermem.c
@@ -0,0 +1,68 @@
+/* Compute amount of lower and upper memory till the first hole. */
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2009 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/memory.h>
+#include <grub/mm.h>
+#include <grub/misc.h>
+#include <grub/machine/memory.h>
+
+grub_uint64_t
+grub_mmap_get_lower (void)
+{
+ grub_uint64_t lower = 0;
+
+ auto int NESTED_FUNC_ATTR hook (grub_uint64_t, grub_uint64_t,
+ grub_memory_type_t);
+ int NESTED_FUNC_ATTR hook (grub_uint64_t addr, grub_uint64_t size,
+ grub_memory_type_t type)
+ {
+ if (type != GRUB_MEMORY_AVAILABLE)
+ return 0;
+ if (addr == 0)
+ lower = size;
+ return 0;
+ }
+
+ grub_mmap_iterate (hook);
+ if (lower > GRUB_ARCH_LOWMEMMAXSIZE)
+ lower = GRUB_ARCH_LOWMEMMAXSIZE;
+ return lower;
+}
+
+grub_uint64_t
+grub_mmap_get_upper (void)
+{
+ grub_uint64_t upper = 0;
+
+ auto int NESTED_FUNC_ATTR hook (grub_uint64_t, grub_uint64_t,
+ grub_memory_type_t);
+ int NESTED_FUNC_ATTR hook (grub_uint64_t addr, grub_uint64_t size,
+ grub_memory_type_t type)
+ {
+ if (type != GRUB_MEMORY_AVAILABLE)
+ return 0;
+ if (addr <= GRUB_ARCH_HIGHMEMPSTART && addr + size
+ > GRUB_ARCH_HIGHMEMPSTART)
+ upper = addr + size - GRUB_ARCH_HIGHMEMPSTART;
+ return 0;
+ }
+
+ grub_mmap_iterate (hook);
+ return upper;
+}