lmb: add a max parameter in the struct lmb_region

Add a max parameter in lmb_region struct to handle test
in lmb_add_region without using the MAX_LMB_REGIONS
define.

This patch allows to modify these size independently for
memory of reserved regions in the next patches.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>

diff --git a/include/lmb.h b/include/lmb.h
index a324754..f3397c7 100644 (file)
--- a/include/lmb.h
+++ b/include/lmb.h
@@ -21,6 +21,7 @@ struct lmb_property {
 
 struct lmb_region {
        unsigned long cnt;
+       unsigned long max;
        struct lmb_property region[MAX_LMB_REGIONS+1];
 };
 

diff --git a/lib/lmb.c b/lib/lmb.c
index 5cf419f..a926198 100644 (file)
--- a/lib/lmb.c
+++ b/lib/lmb.c
@@ -95,6 +95,9 @@ static void lmb_coalesce_regions(struct lmb_region *rgn, unsigned long r1,
 
 void lmb_init(struct lmb *lmb)
 {
+       lmb->memory.max = MAX_LMB_REGIONS;
+       lmb->reserved.max = MAX_LMB_REGIONS;
+
        lmb->memory.cnt = 0;
        lmb->reserved.cnt = 0;
 }
@@ -179,7 +182,7 @@ static long lmb_add_region(struct lmb_region *rgn, phys_addr_t base, phys_size_t
 
        if (coalesced)
                return coalesced;
-       if (rgn->cnt >= MAX_LMB_REGIONS)
+       if (rgn->cnt >= rgn->max)
                return -1;
 
        /* Couldn't coalesce the LMB, so add it to the sorted table. */