1 files changed, 8 insertions, 0 deletions

diff --git a/include/asm-sh/addrspace.h b/include/asm-sh/addrspace.h
index cb9da9992fa0..e7f2deb28e06 100644
--- a/include/asm-sh/addrspace.h
+++ b/include/asm-sh/addrspace.h
@@ -17,6 +17,14 @@
 /* If this CPU supports segmentation, hook up the helpers */
 #ifdef P1SEG
 
+/*
+   [ P0/U0 (virtual) ]          0x00000000     <------ User space
+   [ P1 (fixed)   cached ]      0x80000000     <------ Kernel space
+   [ P2 (fixed)  non-cachable]  0xA0000000     <------ Physical access
+   [ P3 (virtual) cached]       0xC0000000     <------ vmalloced area
+   [ P4 control   ]             0xE0000000
+ */
+
 /* Returns the privileged segment base of a given address  */
 #define PXSEG(a)        (((unsigned long)(a)) & 0xe0000000)