Merge are.twiddle.net:/home/rth/BK/linus-2.5

into are.twiddle.net:/home/rth/BK/axp-2.5

arch/alpha/kernel/alpha_ksyms.c

@@ -144,7 +144,6 @@ EXPORT_SYMBOL(pci_dac_dma_to_offset);
 EXPORT_SYMBOL(dump_thread);
 EXPORT_SYMBOL(dump_fpu);
 EXPORT_SYMBOL(hwrpb);
-EXPORT_SYMBOL(wrusp);
 EXPORT_SYMBOL(start_thread);
 EXPORT_SYMBOL(alpha_read_fp_reg);
 EXPORT_SYMBOL(alpha_read_fp_reg_s);

arch/alpha/kernel/asm-offsets.c

@@ -20,11 +20,22 @@ void foo(void)
 	DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
 	DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
 	BLANK();
+
+        DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
+        DEFINE(TASK_UID, offsetof(struct task_struct, uid));
+        DEFINE(TASK_EUID, offsetof(struct task_struct, euid));
+        DEFINE(TASK_GID, offsetof(struct task_struct, gid));
+        DEFINE(TASK_EGID, offsetof(struct task_struct, egid));
+        DEFINE(TASK_REAL_PARENT, offsetof(struct task_struct, real_parent));
+        DEFINE(TASK_TGID, offsetof(struct task_struct, tgid));
+        BLANK();
+
 	DEFINE(PT_PTRACED, PT_PTRACED);
 	DEFINE(CLONE_VM, CLONE_VM);
 	DEFINE(CLONE_UNTRACED, CLONE_UNTRACED);
 	DEFINE(SIGCHLD, SIGCHLD);
 	BLANK();
+
 	DEFINE(HAE_CACHE, offsetof(struct alpha_machine_vector, hae_cache));
 	DEFINE(HAE_REG, offsetof(struct alpha_machine_vector, hae_register));
 }

arch/alpha/kernel/irq_alpha.c

@@ -37,14 +37,13 @@ void (*perf_irq)(unsigned long, struct pt_regs *) = dummy_perf;
  */
 
 asmlinkage void 
-do_entInt(unsigned long type, unsigned long vector, unsigned long la_ptr,
-	  unsigned long a3, unsigned long a4, unsigned long a5,
-	  struct pt_regs regs)
+do_entInt(unsigned long type, unsigned long vector,
+	  unsigned long la_ptr, struct pt_regs *regs)
 {
 	switch (type) {
 	case 0:
 #ifdef CONFIG_SMP
-		handle_ipi(&regs);
+		handle_ipi(regs);
 		return;
 #else
 		irq_err_count++;
@@ -56,32 +55,32 @@ do_entInt(unsigned long type, unsigned long vector, unsigned long la_ptr,
 #ifdef CONFIG_SMP
 	  {
 		long cpu;
-		smp_percpu_timer_interrupt(&regs);
+		smp_percpu_timer_interrupt(regs);
 		cpu = smp_processor_id();
 		if (cpu != boot_cpuid) {
 		        kstat_cpu(cpu).irqs[RTC_IRQ]++;
 		} else {
-			handle_irq(RTC_IRQ, &regs);
+			handle_irq(RTC_IRQ, regs);
 		}
 	  }
 #else
-		handle_irq(RTC_IRQ, &regs);
+		handle_irq(RTC_IRQ, regs);
 #endif
 		return;
 	case 2:
-		alpha_mv.machine_check(vector, la_ptr, &regs);
+		alpha_mv.machine_check(vector, la_ptr, regs);
 		return;
 	case 3:
-		alpha_mv.device_interrupt(vector, &regs);
+		alpha_mv.device_interrupt(vector, regs);
 		return;
 	case 4:
-		perf_irq(vector, &regs);
+		perf_irq(vector, regs);
 		return;
 	default:
 		printk(KERN_CRIT "Hardware intr %ld %lx? Huh?\n",
 		       type, vector);
 	}
-	printk("PC = %016lx PS=%04lx\n", regs.pc, regs.ps);
+	printk(KERN_CRIT "PC = %016lx PS=%04lx\n", regs->pc, regs->ps);
 }
 
 void __init
@@ -96,10 +95,8 @@ common_init_isa_dma(void)
 void __init
 init_IRQ(void)
 {
-	/* Uh, this really MUST come first, just in case
-	 * the platform init_irq() causes interrupts/mchecks
-	 * (as is the case with RAWHIDE, at least).
-	 */
+	/* Just in case the platform init_irq() causes interrupts/mchecks
+	   (as is the case with RAWHIDE, at least).  */
 	wrent(entInt, 0);
 
 	alpha_mv.init_irq();

arch/alpha/kernel/osf_sys.c

@@ -45,7 +45,6 @@
 
 extern int do_pipe(int *);
 extern asmlinkage unsigned long sys_brk(unsigned long);
-extern int sys_getpriority(int, int);
 extern asmlinkage unsigned long sys_create_module(char *, unsigned long);
 
 /*
@@ -172,65 +171,6 @@ osf_getdirentries(unsigned int fd, struct osf_dirent *dirent,
 #undef ROUND_UP
 #undef NAME_OFFSET
 
-/*
- * Alpha syscall convention has no problem returning negative
- * values:
- */
-asmlinkage int
-osf_getpriority(int which, int who,
-		int a2, int a3, int a4, int a5, struct pt_regs regs)
-{
-	extern int sys_getpriority(int, int);
-	int prio;
-
-	/*
-	 * We don't need to acquire the kernel lock here, because
-	 * all of these operations are local. sys_getpriority
-	 * will get the lock as required..
-	 */
-	prio = sys_getpriority(which, who);
-	if (prio >= 0) {
-		regs.r0 = 0;		/* special return: no errors */
-		prio = 20 - prio;
-	}
-	return prio;
-}
-
-/*
- * No need to acquire the kernel lock, we're local..
- */
-asmlinkage unsigned long
-sys_getxuid(int a0, int a1, int a2, int a3, int a4, int a5, struct pt_regs regs)
-{
-	struct task_struct * tsk = current;
-	(&regs)->r20 = tsk->euid;
-	return tsk->uid;
-}
-
-asmlinkage unsigned long
-sys_getxgid(int a0, int a1, int a2, int a3, int a4, int a5, struct pt_regs regs)
-{
-	struct task_struct * tsk = current;
-	(&regs)->r20 = tsk->egid;
-	return tsk->gid;
-}
-
-asmlinkage unsigned long
-sys_getxpid(int a0, int a1, int a2, int a3, int a4, int a5, struct pt_regs regs)
-{
-	struct task_struct *tsk = current;
-
-	/* 
-	 * This isn't strictly "local" any more and we should actually
-	 * acquire the kernel lock. The "p_opptr" pointer might change
-	 * if the parent goes away (or due to ptrace). But any race
-	 * isn't actually going to matter, as if the parent happens
-	 * to change we can happily return either of the pids.
-	 */
-	(&regs)->r20 = tsk->real_parent->tgid;
-	return tsk->tgid;
-}
-
 asmlinkage unsigned long
 osf_mmap(unsigned long addr, unsigned long len, unsigned long prot,
 	 unsigned long flags, unsigned long fd, unsigned long off)
@@ -502,19 +442,6 @@ sys_getdtablesize(void)
 	return NR_OPEN;
 }
 
-asmlinkage int
-sys_pipe(int a0, int a1, int a2, int a3, int a4, int a5, struct pt_regs regs)
-{
-	int fd[2], error;
-
-	error = do_pipe(fd);
-	if (!error) {
-		regs.r20 = fd[1];
-		error = fd[0];
-	}
-	return error;
-}
-
 /*
  * For compatibility with OSF/1 only.  Use utsname(2) instead.
  */
@@ -723,8 +650,8 @@ osf_sigstack(struct sigstack *uss, struct sigstack *uoss)
  */
 
 asmlinkage unsigned long
-alpha_create_module(char *module_name, unsigned long size,
-		    int a3, int a4, int a5, int a6, struct pt_regs regs)
+do_alpha_create_module(char *module_name, unsigned long size,
+		       struct pt_regs *regs)
 {
 	long retval;
 
@@ -735,7 +662,7 @@ alpha_create_module(char *module_name, unsigned long size,
 	   the error number is a small negative number, while the address
 	   is always negative but much larger.  */
 	if (retval + 1000 < 0)
-		regs.r0 = 0;
+		regs->r0 = 0;
 
         unlock_kernel();
 	return retval;

arch/alpha/kernel/process.c

@@ -42,18 +42,6 @@
 #include "proto.h"
 #include "pci_impl.h"
 
-/*
- * No need to acquire the kernel lock, we're entirely local..
- */
-asmlinkage int
-sys_sethae(unsigned long hae, unsigned long a1, unsigned long a2,
-	   unsigned long a3, unsigned long a4, unsigned long a5,
-	   struct pt_regs regs)
-{
-	(&regs)->hae = hae;
-	return 0;
-}
-
 void default_idle(void)
 {
 	barrier();
@@ -227,6 +215,9 @@ flush_thread(void)
 	   with respect to the FPU.  This is all exceptions disabled.  */
 	current_thread_info()->ieee_state = 0;
 	wrfpcr(FPCR_DYN_NORMAL | ieee_swcr_to_fpcr(0));
+
+	/* Clean slate for TLS.  */
+	current_thread_info()->pcb.unique = 0;
 }
 
 void
@@ -244,16 +235,15 @@ release_thread(struct task_struct *dead_task)
  * with parameters (SIGCHLD, 0).
  */
 int
-alpha_clone(unsigned long clone_flags, unsigned long usp,
-	    int *user_tid, struct switch_stack * swstack)
+alpha_clone(unsigned long clone_flags, unsigned long usp, int *user_tid,
+	    struct pt_regs *regs)
 {
 	struct task_struct *p;
-	struct pt_regs *u_regs = (struct pt_regs *) (swstack+1);
 
 	if (!usp)
 		usp = rdusp();
 
-	p = do_fork(clone_flags & ~CLONE_IDLETASK, usp, u_regs, 0, user_tid);
+	p = do_fork(clone_flags & ~CLONE_IDLETASK, usp, regs, 0, user_tid);
 	return IS_ERR(p) ? PTR_ERR(p) : p->pid;
 }
 
@@ -282,7 +272,6 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 	    unsigned long unused,
 	    struct task_struct * p, struct pt_regs * regs)
 {
-	extern void ret_from_sys_call(void);
 	extern void ret_from_fork(void);
 
 	struct thread_info *childti = p->thread_info;
@@ -304,11 +293,7 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 	stack = ((struct switch_stack *) regs) - 1;
 	childstack = ((struct switch_stack *) childregs) - 1;
 	*childstack = *stack;
-#ifdef CONFIG_SMP
 	childstack->r26 = (unsigned long) ret_from_fork;
-#else
-	childstack->r26 = (unsigned long) ret_from_sys_call;
-#endif
 	childti->pcb.usp = usp;
 	childti->pcb.ksp = (unsigned long) childstack;
 	childti->pcb.flags = 1;	/* set FEN, clear everything else */

arch/alpha/kernel/ptrace.c

@@ -249,8 +249,8 @@ void ptrace_disable(struct task_struct *child)
 }
 
 asmlinkage long
-sys_ptrace(long request, long pid, long addr, long data,
-	   int a4, int a5, struct pt_regs regs)
+do_sys_ptrace(long request, long pid, long addr, long data,
+	      struct pt_regs *regs)
 {
 	struct task_struct *child;
 	long ret;
@@ -307,14 +307,14 @@ sys_ptrace(long request, long pid, long addr, long data,
 		if (copied != sizeof(tmp))
 			goto out;
 		
-		regs.r0 = 0;	/* special return: no errors */
+		regs->r0 = 0;	/* special return: no errors */
 		ret = tmp;
 		goto out;
 	}
 
 	/* Read register number ADDR. */
 	case PTRACE_PEEKUSR:
-		regs.r0 = 0;	/* special return: no errors */
+		regs->r0 = 0;	/* special return: no errors */
 		ret = get_reg(child, addr);
 		DBG(DBG_MEM, ("peek $%ld->%#lx\n", addr, ret));
 		goto out;

arch/alpha/kernel/traps.c

@@ -210,8 +210,7 @@ long alpha_fp_emul (unsigned long pc);
 
 asmlinkage void
 do_entArith(unsigned long summary, unsigned long write_mask,
-	    unsigned long a2, unsigned long a3, unsigned long a4,
-	    unsigned long a5, struct pt_regs regs)
+	    struct pt_regs *regs)
 {
 	long si_code = FPE_FLTINV;
 	siginfo_t info;
@@ -221,23 +220,21 @@ do_entArith(unsigned long summary, unsigned long write_mask,
 		   emulate the instruction.  If the processor supports
 		   precise exceptions, we don't have to search.  */
 		if (!amask(AMASK_PRECISE_TRAP))
-			si_code = alpha_fp_emul(regs.pc - 4);
+			si_code = alpha_fp_emul(regs->pc - 4);
 		else
-			si_code = alpha_fp_emul_imprecise(&regs, write_mask);
+			si_code = alpha_fp_emul_imprecise(regs, write_mask);
 	}
-	die_if_kernel("Arithmetic fault", &regs, 0, 0);
+	die_if_kernel("Arithmetic fault", regs, 0, 0);
 
 	info.si_signo = SIGFPE;
 	info.si_errno = 0;
 	info.si_code = si_code;
-	info.si_addr = (void *) regs.pc;
+	info.si_addr = (void *) regs->pc;
 	send_sig_info(SIGFPE, &info, current);
 }
 
 asmlinkage void
-do_entIF(unsigned long type, unsigned long a1,
-	 unsigned long a2, unsigned long a3, unsigned long a4,
-	 unsigned long a5, struct pt_regs regs)
+do_entIF(unsigned long type, struct pt_regs *regs)
 {
 	siginfo_t info;
 	int signo, code;
@@ -245,13 +242,13 @@ do_entIF(unsigned long type, unsigned long a1,
 	if (!opDEC_testing || type != 4) {
 		if (type == 1) {
 			const unsigned int *data
-			  = (const unsigned int *) regs.pc;
+			  = (const unsigned int *) regs->pc;
 			printk("Kernel bug at %s:%d\n",
 			       (const char *)(data[1] | (long)data[2] << 32), 
 			       data[0]);
 		}
 		die_if_kernel((type == 1 ? "Kernel Bug" : "Instruction fault"),
-		      &regs, type, 0);
+			      regs, type, 0);
 	}
 
 	switch (type) {
@@ -260,10 +257,10 @@ do_entIF(unsigned long type, unsigned long a1,
 		info.si_errno = 0;
 		info.si_code = TRAP_BRKPT;
 		info.si_trapno = 0;
-		info.si_addr = (void *) regs.pc;
+		info.si_addr = (void *) regs->pc;
 
 		if (ptrace_cancel_bpt(current)) {
-			regs.pc -= 4;	/* make pc point to former bpt */
+			regs->pc -= 4;	/* make pc point to former bpt */
 		}
 
 		send_sig_info(SIGTRAP, &info, current);
@@ -273,15 +270,15 @@ do_entIF(unsigned long type, unsigned long a1,
 		info.si_signo = SIGTRAP;
 		info.si_errno = 0;
 		info.si_code = __SI_FAULT;
-		info.si_addr = (void *) regs.pc;
+		info.si_addr = (void *) regs->pc;
 		info.si_trapno = 0;
 		send_sig_info(SIGTRAP, &info, current);
 		return;
 		
 	      case 2: /* gentrap */
-		info.si_addr = (void *) regs.pc;
-		info.si_trapno = regs.r16;
-		switch ((long) regs.r16) {
+		info.si_addr = (void *) regs->pc;
+		info.si_trapno = regs->r16;
+		switch ((long) regs->r16) {
 		case GEN_INTOVF:
 			signo = SIGFPE;
 			code = FPE_INTOVF;
@@ -341,7 +338,7 @@ do_entIF(unsigned long type, unsigned long a1,
 		info.si_signo = signo;
 		info.si_errno = 0;
 		info.si_code = code;
-		info.si_addr = (void *) regs.pc;
+		info.si_addr = (void *) regs->pc;
 		send_sig_info(signo, &info, current);
 		return;
 
@@ -358,26 +355,26 @@ do_entIF(unsigned long type, unsigned long a1,
 			   we get the correct PC.  If not, we set a flag
 			   to correct it every time through.  */
 			if (opDEC_testing) {
-				if (regs.pc == opDEC_test_pc) {
+				if (regs->pc == opDEC_test_pc) {
 					opDEC_fix = 4;
-					regs.pc += 4;
+					regs->pc += 4;
 					printk("opDEC fixup enabled.\n");
 				}
 				return;
 			}
-			regs.pc += opDEC_fix; 
+			regs->pc += opDEC_fix; 
 			
 			/* EV4 does not implement anything except normal
 			   rounding.  Everything else will come here as
 			   an illegal instruction.  Emulate them.  */
-			si_code = alpha_fp_emul(regs.pc - 4);
+			si_code = alpha_fp_emul(regs->pc - 4);
 			if (si_code == 0)
 				return;
 			if (si_code > 0) {
 				info.si_signo = SIGFPE;
 				info.si_errno = 0;
 				info.si_code = si_code;
-				info.si_addr = (void *) regs.pc;
+				info.si_addr = (void *) regs->pc;
 				send_sig_info(SIGFPE, &info, current);
 				return;
 			}
@@ -406,7 +403,7 @@ do_entIF(unsigned long type, unsigned long a1,
 	info.si_signo = SIGILL;
 	info.si_errno = 0;
 	info.si_code = ILL_ILLOPC;
-	info.si_addr = regs.pc;
+	info.si_addr = (void *) regs->pc;
 	send_sig_info(SIGILL, &info, current);
 }
 
@@ -418,18 +415,16 @@ do_entIF(unsigned long type, unsigned long a1,
    and if we don't put something on the entry point we'll oops.  */
 
 asmlinkage void
-do_entDbg(unsigned long type, unsigned long a1,
-	  unsigned long a2, unsigned long a3, unsigned long a4,
-	  unsigned long a5, struct pt_regs regs)
+do_entDbg(struct pt_regs *regs)
 {
 	siginfo_t info;
 
-	die_if_kernel("Instruction fault", &regs, type, 0);
+	die_if_kernel("Instruction fault", regs, 0, 0);
 
 	info.si_signo = SIGILL;
 	info.si_errno = 0;
 	info.si_code = ILL_ILLOPC;
-	info.si_addr = regs.pc;
+	info.si_addr = (void *) regs->pc;
 	force_sig_info(SIGILL, &info, current);
 }
 
@@ -1083,22 +1078,6 @@ do_entUnaUser(void * va, unsigned long opcode,
 	return;
 }
 
-/*
- * Unimplemented system calls.
- */
-asmlinkage long
-alpha_ni_syscall(unsigned long a0, unsigned long a1, unsigned long a2,
-		 unsigned long a3, unsigned long a4, unsigned long a5,
-		 struct pt_regs regs)
-{
-	/* We only get here for OSF system calls, minus #112;
-	   the rest go to sys_ni_syscall.  */
-#if 0
-	printk("<sc %ld(%lx,%lx,%lx)>", regs.r0, a0, a1, a2);
-#endif
-	return -ENOSYS;
-}
-
 void
 trap_init(void)
 {
@@ -1114,9 +1093,7 @@ trap_init(void)
 	wrent(entDbg, 6);
 
 	/* Hack for Multia (UDB) and JENSEN: some of their SRMs have
-	 * a bug in the handling of the opDEC fault.  Fix it up if so.
-	 */
-	if (implver() == IMPLVER_EV4) {
+	   a bug in the handling of the opDEC fault.  Fix it up if so.  */
+	if (implver() == IMPLVER_EV4)
 		opDEC_check();
-	}
 }

arch/alpha/math-emu/math.c

@@ -223,12 +223,12 @@ alpha_fp_emul (unsigned long pc)
 				FP_CONV(S,D,1,1,SR,DB);
 				goto pack_s;
 			} else {
-				/* CVTST need do nothing else but copy the
-				   bits and repack.  */
+				vb = alpha_read_fp_reg_s(fb);
+				FP_UNPACK_SP(SB, &vb);
 				DR_c = DB_c;
 				DR_s = DB_s;
 				DR_e = DB_e;
-				DR_f = DB_f;
+				DR_f = SB_f << (52 - 23);
 				goto pack_d;
 			}