diff options
Diffstat (limited to 'arch/mips/mm/init.c')
| -rw-r--r-- | arch/mips/mm/init.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 6fea3b54c961..090fa653dfa9 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -446,6 +446,12 @@ static inline void __init mem_init_free_highmem(void) void __init mem_init(void) { + /* + * When _PFN_SHIFT is greater than PAGE_SHIFT we won't have enough PTE + * bits to hold a full 32b physical address on MIPS32 systems. + */ + BUILD_BUG_ON(IS_ENABLED(CONFIG_32BIT) && (_PFN_SHIFT > PAGE_SHIFT)); + #ifdef CONFIG_HIGHMEM #ifdef CONFIG_DISCONTIGMEM #error "CONFIG_HIGHMEM and CONFIG_DISCONTIGMEM dont work together yet" |