Merge tag 'v4.8' into patchwork

[cascardo/linux.git] / arch / mips / mm / init.c

diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index a5509e7..72f7478 100644 (file)
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -261,7 +261,6 @@ unsigned __weak platform_maar_init(unsigned num_pairs)
 {
        struct maar_config cfg[BOOT_MEM_MAP_MAX];
        unsigned i, num_configured, num_cfg = 0;
-       phys_addr_t skip;
 
        for (i = 0; i < boot_mem_map.nr_map; i++) {
                switch (boot_mem_map.map[i].type) {
@@ -272,14 +271,14 @@ unsigned __weak platform_maar_init(unsigned num_pairs)
                        continue;
                }
 
-               skip = 0x10000 - (boot_mem_map.map[i].addr & 0xffff);
-
+               /* Round lower up */
                cfg[num_cfg].lower = boot_mem_map.map[i].addr;
-               cfg[num_cfg].lower += skip;
+               cfg[num_cfg].lower = (cfg[num_cfg].lower + 0xffff) & ~0xffff;
 
-               cfg[num_cfg].upper = cfg[num_cfg].lower;
-               cfg[num_cfg].upper += boot_mem_map.map[i].size - 1;
-               cfg[num_cfg].upper -= skip;
+               /* 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].attrs = MIPS_MAAR_S;
                num_cfg++;
@@ -441,6 +440,9 @@ static inline void mem_init_free_highmem(void)
 #ifdef CONFIG_HIGHMEM
        unsigned long tmp;
 
+       if (cpu_has_dc_aliases)
+               return;
+
        for (tmp = highstart_pfn; tmp < highend_pfn; tmp++) {
                struct page *page = pfn_to_page(tmp);