MAAR initialization method can be slightly simplified, since
memblock allocator is fully available.
Signed-off-by: Serge Semin <fancer.lancer@xxxxxxxxx>
---
arch/mips/mm/init.c | 27 +++++++++++++--------------
1 file changed, 13 insertions(+), 14 deletions(-)
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index a4f49c7..49db909 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -22,6 +22,7 @@
#include <linux/ptrace.h>
#include <linux/mman.h>
#include <linux/mm.h>
+#include <linux/memblock.h>
#include <linux/bootmem.h>
#include <linux/highmem.h>
#include <linux/swap.h>
@@ -245,28 +246,26 @@ void __init fixrange_init(unsigned long start, unsigned long end,
#endif
}
-unsigned __weak platform_maar_init(unsigned num_pairs)
+/*
+ * Platform-specific method of MAAR registers initialization
+ */
+unsigned int __weak platform_maar_init(unsigned int num_pairs)
{
struct maar_config cfg[BOOT_MEM_MAP_MAX];
- unsigned i, num_configured, num_cfg = 0;
+ struct memblock_region *reg;
+ unsigned int num_configured, num_cfg = 0;
- for (i = 0; i < boot_mem_map.nr_map; i++) {
- switch (boot_mem_map.map[i].type) {
- case BOOT_MEM_RAM:
- case BOOT_MEM_INIT_RAM:
+ /* Collect RAM regions within MAAR config array */
+ for_each_memblock(memory, reg) {
+ if (num_cfg >= BOOT_MEM_MAP_MAX) {
+ pr_info("Too many memory regions to init MAARs");
break;
- default:
- continue;
}
-
/* Round lower up */
- cfg[num_cfg].lower = boot_mem_map.map[i].addr;
- cfg[num_cfg].lower = (cfg[num_cfg].lower + 0xffff) & ~0xffff;
+ cfg[num_cfg].lower = (reg->base + 0xffff) & ~0xffff;
/* Round upper down */
- cfg[num_cfg].upper = boot_mem_map.map[i].addr +
- boot_mem_map.map[i].size;
- cfg[num_cfg].upper = (cfg[num_cfg].upper & ~0xffff) - 1;
+ cfg[num_cfg].upper = ((reg->base + reg->size) & ~0xffff) - 1;
cfg[num_cfg].attrs = MIPS_MAAR_S;
num_cfg++;
--
2.6.6
