X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=include%2Fasm-i386%2Fsegment.h;h=b7ab59685ba7f1784769f7247ba839c048e5f72a;hb=6cfd76a26d9fe2ba54b9d496a48c1d9285e5c5ed;hp=faf995307b9e66428f06e9afd514217760c4f61a;hpb=115b2ce1c3b974e43e45fa6c9e20cd7271a01dff;p=powerpc.git

diff --git a/include/asm-i386/segment.h b/include/asm-i386/segment.h
index faf995307b..b7ab59685b 100644
--- a/include/asm-i386/segment.h
+++ b/include/asm-i386/segment.h
@@ -83,6 +83,11 @@
 
 #define GDT_SIZE (GDT_ENTRIES * 8)
 
+/* Matches __KERNEL_CS and __USER_CS (they must be 2 entries apart) */
+#define SEGMENT_IS_FLAT_CODE(x)  (((x) & 0xec) == GDT_ENTRY_KERNEL_CS * 8)
+/* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */
+#define SEGMENT_IS_PNP_CODE(x)   (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8)
+
 /* Simple and small GDT entries for booting only */
 
 #define GDT_ENTRY_BOOT_CS		2
@@ -112,4 +117,16 @@
  */
 #define IDT_ENTRIES 256
 
+/* Bottom two bits of selector give the ring privilege level */
+#define SEGMENT_RPL_MASK	0x3
+/* Bit 2 is table indicator (LDT/GDT) */
+#define SEGMENT_TI_MASK		0x4
+
+/* User mode is privilege level 3 */
+#define USER_RPL		0x3
+/* LDT segment has TI set, GDT has it cleared */
+#define SEGMENT_LDT		0x4
+#define SEGMENT_GDT		0x0
+
+#define get_kernel_rpl()  0
 #endif