sgi: remove obsolete TSTKTOP constant

diff --git a/sys/src/9/sgi/mem.h b/sys/src/9/sgi/mem.h
index 37506f93faa20013d176ac37da8768bce88490cf..11f34b423b9963a9f955a90a0ccc084343a13e9e 100644 (file)
--- a/sys/src/9/sgi/mem.h
+++ b/sys/src/9/sgi/mem.h
@@ -199,7 +199,7 @@
 #define        KUSEG   0x00000000      /* user process */
 #define KSEG0  0x80000000      /* kernel (direct mapped, cached) */
 #define KSEG1  0xA0000000      /* kernel (direct mapped, uncached: i/o) */
-#define        KSEG2   0xC0000000      /* kernel, used for TSTKTOP */
+#define        KSEG2   0xC0000000      /* kernel, was used for TSTKTOP */
 #define        KSEG3   0xE0000000      /* kernel, used by kmap */
 #define        KSEGM   0xE0000000      /* mask to check which seg */
 
@@ -271,7 +271,5 @@
 #define        UTZERO  (UZERO+MAXBY2PG)        /* 1st user text address; see mkfile */
 #define        USTKTOP (KZERO-BY2PG)           /* byte just beyond user stack */
 #define        USTKSIZE (8*1024*1024)          /* size of user stack */
-#define TSTKTOP (KSEG2+USTKSIZE-BY2PG) /* top of temporary stack */
-#define TSTKSIZ (1024*1024/BY2PG)      /* can be at most UTSKSIZE/BY2PG */
 #define        KZERO   KSEG0                   /* base of kernel address space */
 #define        KTZERO  (KZERO+0x08020000)      /* first address in kernel text */