lmb: make LMB memory map persistent and global

The current LMB API's for allocating and reserving memory use a
per-caller based memory view. Memory allocated by a caller can then be
overwritten by another caller. Make these allocations and reservations
persistent using the alloced list data structure.

Two alloced lists are declared -- one for the available(free) memory,
and one for the used memory. Once full, the list can then be extended
at runtime.

[sjg: Use a stack to store pointer of lmb struct when running lmb tests]

Signed-off-by: Sughosh Ganu <[email protected]>
Signed-off-by: Simon Glass <[email protected]>
[sjg: Optimise the logic to add a region in lmb_add_region_flags()]

1 files changed, 3 insertions, 4 deletions

diff --git a/fs/fs.c b/fs/fs.c
index 0c47943f333..2c835eef860 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -531,7 +531,6 @@ int fs_size(const char *filename, loff_t *size)
 static int fs_read_lmb_check(const char *filename, ulong addr, loff_t offset,
 			     loff_t len, struct fstype_info *info)
 {
-	struct lmb lmb;
 	int ret;
 	loff_t size;
 	loff_t read_len;
@@ -550,10 +549,10 @@ static int fs_read_lmb_check(const char *filename, ulong addr, loff_t offset,
 	if (len && len < read_len)
 		read_len = len;
 
-	lmb_init_and_reserve(&lmb, gd->bd, (void *)gd->fdt_blob);
-	lmb_dump_all(&lmb);
+	lmb_init_and_reserve(gd->bd, (void *)gd->fdt_blob);
+	lmb_dump_all();
 
-	if (lmb_alloc_addr(&lmb, addr, read_len) == addr)
+	if (lmb_alloc_addr(addr, read_len) == addr)
 		return 0;
 
 	log_err("** Reading file would overwrite reserved memory **\n");