@@ -66,6 +66,17 @@ int lmb_init(void);
void lmb_init_and_reserve(struct bd_info *bd, void *fdt_blob);
void lmb_init_and_reserve_range(phys_addr_t base, phys_size_t size,
void *fdt_blob);
+
+/**
+ * lmb_add_memory() - Add memory range for LMB allocations
+ *
+ * Add the entire available memory range to the pool of memory that
+ * can be used by the LMB module for allocations.
+ *
+ * Return: None
+ */
+void lmb_add_memory(void);
+
long lmb_add(phys_addr_t base, phys_size_t size);
long lmb_reserve(phys_addr_t base, phys_size_t size);
/**
@@ -246,6 +246,43 @@ void lmb_init_and_reserve_range(phys_addr_t base, phys_size_t size,
lmb_reserve_common(fdt_blob);
}
+/**
+ * lmb_add_memory() - Add memory range for LMB allocations
+ *
+ * Add the entire available memory range to the pool of memory that
+ * can be used by the LMB module for allocations.
+ *
+ * Return: None
+ */
+void lmb_add_memory(void)
+{
+ int i;
+ phys_size_t size;
+ phys_addr_t rgn_top;
+ u64 ram_top = gd->ram_top;
+ struct bd_info *bd = gd->bd;
+
+ /* Assume a 4GB ram_top if not defined */
+ if (!ram_top)
+ ram_top = 0x100000000ULL;
+
+ for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
+ size = bd->bi_dram[i].size;
+ if (size) {
+ if (bd->bi_dram[i].start > ram_top)
+ continue;
+
+ rgn_top = bd->bi_dram[i].start +
+ bd->bi_dram[i].size;
+
+ if (rgn_top > ram_top)
+ size -= rgn_top - ram_top;
+
+ lmb_add(bd->bi_dram[i].start, size);
+ }
+ }
+}
+
static long lmb_resize_regions(struct alist *lmb_rgn_lst,
unsigned long idx_start,
phys_addr_t base, phys_size_t size)
@@ -696,6 +733,8 @@ int lmb_init(void)
return ret;
}
+ lmb_add_memory();
+
return 0;
}