diff options
Diffstat (limited to 'arch/arm/kernel/head.S')
| -rw-r--r-- | arch/arm/kernel/head.S | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 8bac553fe21..87d626afd56 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -431,13 +431,21 @@ __enable_mmu: mov r5, #0 mcrr p15, 0, r4, r5, c2 @ load TTBR0 #else +#ifndef CONFIG_SYS_SUPPORTS_HUGETLBFS mov r5, #(domain_val(DOMAIN_USER, DOMAIN_MANAGER) | \ domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \ domain_val(DOMAIN_TABLE, DOMAIN_MANAGER) | \ domain_val(DOMAIN_IO, DOMAIN_CLIENT)) +#else + @ set ourselves as the client in all domains + @ this allows us to then use the 4 domain bits in the + @ section descriptors in our transparent huge pages + ldr r5, =0x55555555 +#endif /* CONFIG_SYS_SUPPORTS_HUGETLBFS */ + mcr p15, 0, r5, c3, c0, 0 @ load domain access register mcr p15, 0, r4, c2, c0, 0 @ load page table pointer -#endif +#endif /* CONFIG_ARM_LPAE */ b __turn_mmu_on ENDPROC(__enable_mmu) |