summaryrefslogtreecommitdiff
path: root/arch/sh/kernel/cpu/init.c
diff options
context:
space:
mode:
authorPaul Mundt <lethal@linux-sh.org>2010-10-26 14:44:58 +0900
committerPaul Mundt <lethal@linux-sh.org>2010-10-26 14:44:58 +0900
commit2f98492c5375e906e48c78d88351f45bb11b6a8a (patch)
tree13373dbdc047a2b70623dbf2cd3181865266f976 /arch/sh/kernel/cpu/init.c
parentb18cae4224bde7e5a332c19bc99247b2098ea232 (diff)
sh: Expose physical addressing mode through cpuinfo.
CPUs can be in either the legacy 29-bit or 32-bit physical addressing modes. This follows the x86 approach of tracking the phys bits in cpuinfo and exposing it to userspace through procfs. This change was requested to permit kexec-tools to detect the physical addressing mode in order to determine the appropriate address mangling. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/cpu/init.c')
-rw-r--r--arch/sh/kernel/cpu/init.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/sh/kernel/cpu/init.c b/arch/sh/kernel/cpu/init.c
index 97661061ff20..fac742e514ee 100644
--- a/arch/sh/kernel/cpu/init.c
+++ b/arch/sh/kernel/cpu/init.c
@@ -340,6 +340,8 @@ asmlinkage void __cpuinit cpu_init(void)
*/
current_cpu_data.asid_cache = NO_CONTEXT;
+ current_cpu_data.phys_bits = __in_29bit_mode() ? 29 : 32;
+
speculative_execution_init();
expmask_init();