patch-2.1.34 linux/include/asm-sparc64/head.h

• Lines: 244
• Date: Fri Apr 11 10:47:39 1997
• Orig file: v2.1.33/linux/include/asm-sparc64/head.h
• Orig date: Thu Mar 27 14:40:09 1997

diff -u --recursive --new-file v2.1.33/linux/include/asm-sparc64/head.h linux/include/asm-sparc64/head.h
@@ -1,10 +1,13 @@
-/* $Id: head.h,v 1.7 1997/03/18 18:00:36 jj Exp $ */
+/* $Id: head.h,v 1.16 1997/04/08 11:03:13 davem Exp $ */
 #ifndef _SPARC64_HEAD_H
 #define _SPARC64_HEAD_H
 
-#define KERNBASE    0xfffff80000000000
+#include <asm/pstate.h>
+
+#define KERNBASE    0xFFFFF80000000000
 #define BOOT_KERNEL b sparc64_boot; nop; nop; nop; nop; nop; nop; nop;
 
+/* We need a "cleaned" instruction... */
 #define CLEAN_WINDOW							\
 	clr	%o0;	clr	%o1;	clr	%o2;	clr	%o3;	\
 	clr	%o4;	clr	%o5;	clr	%o6;	clr	%o7;	\
@@ -12,7 +15,7 @@
 	clr	%l4;	clr	%l5;	clr	%l6;	clr	%l7;	\
 	rdpr %cleanwin, %g1; 		add %g1, 1, %g1;		\
 	wrpr %g1, 0x0, %cleanwin;	retry;				\
-	nop;		nop;		nop;		nop;
+	nop;nop;nop;nop;nop;nop;nop;nop;nop;nop;nop;nop;
 
 #define TRAP(routine)					\
 	ba,pt	%xcc, etrap;				\
@@ -24,6 +27,32 @@
 	nop;						\
 	nop;
 
+#define TRAP_NOSAVE(routine)				\
+	ba,pt	%xcc, routine;				\
+	 nop;						\
+	nop; nop; nop; nop; nop; nop;
+
+#define TRAPTL1(routine)				\
+	ba,pt	%xcc, etraptl1;				\
+	 rd	%pc, %g7;				\
+	call	routine;				\
+	 add	%sp, STACK_BIAS + REGWIN_SZ, %o0;	\
+	ba,pt	%xcc, rtrap;				\
+	 nop;						\
+	nop;						\
+	nop;
+	
+/* Just for testing */
+#define PROM_TRAP					\
+	rd	%pc, %g1;				\
+	sethi	%uhi(KERNBASE), %g4;			\
+	sethi	%hi(0xf0000000-0x8000), %g2;		\
+	sllx	%g4, 32, %g4;				\
+	add	%g1, %g2, %g1;				\
+	sub	%g1, %g4, %g1;				\
+	jmpl	%g1 + %g0, %g0;				\
+	nop;
+
 #define TRAP_ARG(routine, arg)				\
 	ba,pt	%xcc, etrap;				\
 	 rd	%pc, %g7;				\
@@ -34,6 +63,16 @@
 	 nop;						\
 	nop;
 	
+#define TRAPTL1_ARG(routine, arg)			\
+	ba,pt	%xcc, etraptl1;				\
+	 rd	%pc, %g7;				\
+	add	%sp, STACK_BIAS + REGWIN_SZ, %o0;	\
+	call	routine;				\
+	 mov	arg, %o1;				\
+	ba,pt	%xcc, rtrap;				\
+	 nop;						\
+	nop;
+	
 #define SYSCALL_TRAP(routine, systbl)			\
 	ba,pt	%xcc, etrap;				\
 	 rd	%pc, %g7;				\
@@ -42,6 +81,25 @@
 	 or	%l7, %lo(systbl), %l7;			\
 	nop; nop; nop;
 	
+#define ACCESS_EXCEPTION_TRAP(routine)			\
+	rdpr	%pstate, %g1;				\
+	wrpr	%g1, PSTATE_MG|PSTATE_AG, %pstate;	\
+	ba,pt	%xcc, etrap;				\
+	 rd	%pc, %g7;				\
+	call	routine;				\
+	 add	%sp, STACK_BIAS + REGWIN_SZ, %o0;	\
+	ba,pt	%xcc, rtrap;				\
+	 nop;
+
+#define ACCESS_EXCEPTION_TRAPTL1(routine)		\
+	rdpr	%pstate, %g1;				\
+	wrpr	%g1, PSTATE_MG|PSTATE_AG, %pstate;	\
+	ba,pt	%xcc, etraptl1;				\
+	 rd	%pc, %g7;				\
+	call	routine;				\
+	 add	%sp, STACK_BIAS + REGWIN_SZ, %o0;	\
+	ba,pt	%xcc, rtrap;				\
+	 nop;
 
 #define SUNOS_SYSCALL_TRAP SYSCALL_TRAP(linux_sparc_syscall, sunos_sys_table)
 #define	LINUX_32BIT_SYSCALL_TRAP SYSCALL_TRAP(linux_sparc_syscall, sys_call_table32)
@@ -54,11 +112,36 @@
 #define SETCC_TRAP TRAP(setcc)
 #define INDIRECT_SOLARIS_SYSCALL(tlvl) TRAP_ARG(indirect_syscall, tlvl)
 
-#define TRAP_IRQ(routine, level) TRAP_ARG(routine, level)
+#define TRAP_IRQ(routine, level)			\
+	rdpr	%pil, %g4;				\
+	wrpr	%g0, 15, %pil;				\
+	ba,pt	%xcc, etrap_irq;			\
+	 rd	%pc, %g7;				\
+	mov	level, %o0;				\
+	call	routine;				\
+	 add	%sp, STACK_BIAS + REGWIN_SZ, %o1;	\
+	ba,a,pt	%xcc, rtrap;
+
+/* On UP this is ok, and worth the effort, for SMP we need
+ * a different mechanism and thus cannot do it all in trap table. -DaveM
+ */
+#if 0 /* ndef __SMP__ */
+#define TRAP_IVEC				\
+	ldxa	[%g2] ASI_UDB_INTR_R, %g3;	\
+	and	%g3, 0x7ff, %g3;		\
+	sllx	%g3, 3, %g3;			\
+	ldx	[%g1 + %g3], %g5;		\
+	wr	%g5, 0x0, %set_softint;		\
+	stxa	%g0, [%g0] ASI_INTR_RECEIVE;	\
+	membar	#Sync;				\
+	retry;
+#else
+#define TRAP_IVEC TRAP_NOSAVE(do_ivec)
+#endif
 
 #define BTRAP(lvl) TRAP_ARG(bad_trap, lvl)
 
-#define BTRAPTL1(lvl) TRAP_ARG(bad_trap_tl1, lvl)
+#define BTRAPTL1(lvl) TRAPTL1_ARG(bad_trap_tl1, lvl)
 
 #define FLUSH_WINDOW_TRAP					\
 	flushw;							\
@@ -87,8 +170,8 @@
 	nop; nop; nop; nop; nop; nop; nop; nop;
 
 /* Normal 64bit spill */
-#define SPILL_1_NORMAL					\
-	wr	%g0, ASI_AIUP, %asi;			\
+#define SPILL_1_GENERIC(xxx)				\
+	wr	%g0, xxx, %asi;				\
 	stxa	%l0, [%sp + STACK_BIAS + 0x00] %asi;	\
 	stxa	%l1, [%sp + STACK_BIAS + 0x08] %asi;	\
 	stxa	%l2, [%sp + STACK_BIAS + 0x10] %asi;	\
@@ -109,8 +192,8 @@
 	nop; nop; nop; nop; nop; nop; nop;
 
 /* Normal 32bit spill */
-#define SPILL_2_NORMAL					\
-	wr	%g0, ASI_AIUP, %asi;			\
+#define SPILL_2_GENERIC(xxx)				\
+	wr	%g0, xxx, %asi;				\
 	srl	%sp, 0, %sp;				\
 	stda	%l0, [%sp + 0x00] %asi;			\
 	stda	%l2, [%sp + 0x10] %asi;			\
@@ -120,10 +203,12 @@
 	stda	%i2, [%sp + 0x50] %asi;			\
 	stda	%i4, [%sp + 0x60] %asi;			\
 	stda	%i6, [%sp + 0x70] %asi;			\
-	saved; retry; nop; nop; nop; nop; nop;		\
+	saved; retry; nop; nop; nop; nop;		\
 	nop; nop; nop; nop; nop; nop; nop; nop;		\
 	nop; nop; nop; nop; nop; nop; nop; nop;
 
+#define SPILL_1_NORMAL SPILL_1_GENERIC(ASI_AIUP)
+#define SPILL_2_NORMAL SPILL_2_GENERIC(ASI_AIUP)
 #define SPILL_3_NORMAL SPILL_0_NORMAL
 #define SPILL_4_NORMAL SPILL_0_NORMAL
 #define SPILL_5_NORMAL SPILL_0_NORMAL
@@ -131,8 +216,8 @@
 #define SPILL_7_NORMAL SPILL_0_NORMAL
 
 #define SPILL_0_OTHER SPILL_0_NORMAL
-#define SPILL_1_OTHER SPILL_1_NORMAL
-#define SPILL_2_OTHER SPILL_2_NORMAL
+#define SPILL_1_OTHER SPILL_1_GENERIC(ASI_AIUS)
+#define SPILL_2_OTHER SPILL_2_GENERIC(ASI_AIUS)
 #define SPILL_3_OTHER SPILL_3_NORMAL
 #define SPILL_4_OTHER SPILL_4_NORMAL
 #define SPILL_5_OTHER SPILL_5_NORMAL
@@ -157,12 +242,12 @@
 	ldx	[%sp + STACK_BIAS + 0x68], %i5;		\
 	ldx	[%sp + STACK_BIAS + 0x70], %i6;		\
 	ldx	[%sp + STACK_BIAS + 0x78], %i7;		\
-	saved; retry; nop; nop; nop; nop; nop; nop;	\
+	restored; retry; nop; nop; nop; nop; nop; nop;	\
 	nop; nop; nop; nop; nop; nop; nop; nop;
 
 /* Normal 64bit fill */
-#define FILL_1_NORMAL					\
-	wr	%g0, ASI_AIUP, %asi;			\
+#define FILL_1_GENERIC(xxx)				\
+	wr	%g0, xxx, %asi;				\
 	ldxa	[%sp + STACK_BIAS + 0x00] %asi, %l0;	\
 	ldxa	[%sp + STACK_BIAS + 0x08] %asi, %l1;	\
 	ldxa	[%sp + STACK_BIAS + 0x10] %asi, %l2;	\
@@ -179,12 +264,12 @@
 	ldxa	[%sp + STACK_BIAS + 0x68] %asi, %i5;	\
 	ldxa	[%sp + STACK_BIAS + 0x70] %asi, %i6;	\
 	ldxa	[%sp + STACK_BIAS + 0x78] %asi, %i7;	\
-	saved; retry; nop; nop; nop; nop; nop; nop;	\
+	restored; retry; nop; nop; nop; nop; nop; nop;	\
 	nop; nop; nop; nop; nop; nop; nop;
 
 /* Normal 32bit fill */
-#define FILL_2_NORMAL					\
-	wr	%g0, ASI_AIUP, %asi;			\
+#define FILL_2_GENERIC(xxx)				\
+	wr	%g0, xxx, %asi;				\
 	srl	%sp, 0, %sp;				\
 	ldda	[%sp + 0x00] %asi, %l0;			\
 	ldda	[%sp + 0x10] %asi, %l2;			\
@@ -194,10 +279,12 @@
 	ldda	[%sp + 0x50] %asi, %i2;			\
 	ldda	[%sp + 0x60] %asi, %i4;			\
 	ldda	[%sp + 0x70] %asi, %i6;			\
-	saved; retry; nop; nop; nop; nop; nop;		\
+	restored; retry; nop; nop; nop; nop;		\
 	nop; nop; nop; nop; nop; nop; nop; nop;		\
 	nop; nop; nop; nop; nop; nop; nop; nop;
 
+#define FILL_1_NORMAL FILL_1_GENERIC(ASI_AIUP)
+#define FILL_2_NORMAL FILL_2_GENERIC(ASI_AIUP)
 #define FILL_3_NORMAL FILL_0_NORMAL
 #define FILL_4_NORMAL FILL_0_NORMAL
 #define FILL_5_NORMAL FILL_0_NORMAL
@@ -205,8 +292,8 @@
 #define FILL_7_NORMAL FILL_0_NORMAL
 
 #define FILL_0_OTHER FILL_0_NORMAL
-#define FILL_1_OTHER FILL_1_NORMAL
-#define FILL_2_OTHER FILL_2_NORMAL
+#define FILL_1_OTHER FILL_1_GENERIC(ASI_AIUS)
+#define FILL_2_OTHER FILL_2_GENERIC(ASI_AIUS)
 #define FILL_3_OTHER FILL_3_NORMAL
 #define FILL_4_OTHER FILL_4_NORMAL
 #define FILL_5_OTHER FILL_5_NORMAL