Make sure to send an ipi to the processor a given proc runs on in signotify(),

in the MULTIPROCESOR case.
ok kettenis@

4 files changed, 24 insertions, 6 deletions

diff --git a/sys/arch/sparc64/include/cpu.h b/sys/arch/sparc64/include/cpu.h
index dc2f6f8c736..c66081c983b 100644
--- a/sys/arch/sparc64/include/cpu.h
+++ b/sys/arch/sparc64/include/cpu.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cpu.h,v 1.49 2007/10/18 20:44:47 kettenis Exp $	*/
+/*	$OpenBSD: cpu.h,v 1.50 2007/10/20 16:54:49 miod Exp $	*/
 /*	$NetBSD: cpu.h,v 1.28 2001/06/14 22:56:58 thorpej Exp $ */
 
 /*
@@ -155,6 +155,8 @@ void	cpu_boot_secondary_processors(void);
 void	sparc64_send_ipi(int, void (*)(void), u_int64_t, u_int64_t);
 void	sparc64_broadcast_ipi(void (*)(void), u_int64_t, u_int64_t);
 
+void	smp_signotify(struct proc *);
+
 #else
 
 #define cpu_number()	0
diff --git a/sys/arch/sparc64/sparc64/ipifuncs.c b/sys/arch/sparc64/sparc64/ipifuncs.c
index 501569b2e33..2dec458c16d 100644
--- a/sys/arch/sparc64/sparc64/ipifuncs.c
+++ b/sys/arch/sparc64/sparc64/ipifuncs.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ipifuncs.c,v 1.3 2007/10/18 20:44:47 kettenis Exp $	*/
+/*	$OpenBSD: ipifuncs.c,v 1.4 2007/10/20 16:54:52 miod Exp $	*/
 /*	$NetBSD: ipifuncs.c,v 1.8 2006/10/07 18:11:36 rjs Exp $ */
 
 /*-
@@ -36,7 +36,7 @@
 
 #include <sys/param.h>
 #include <sys/systm.h>
-#include <sys/malloc.h>
+#include <sys/proc.h>
 
 #include <machine/cpu.h>
 #include <machine/ctlreg.h>
@@ -54,6 +54,7 @@ extern int db_active;
  */
 void	ipi_tlb_page_demap(void);
 void	ipi_tlb_context_demap(void);
+void	ipi_softint(void);
 
 /*
  * Send an interprocessor interrupt.
@@ -142,3 +143,12 @@ smp_tlb_flush_ctx(int ctx)
 
 	sparc64_broadcast_ipi(ipi_tlb_context_demap, ctx, 0);
 }
+
+void
+smp_signotify(struct proc *p)
+{
+	if (db_active)
+		return;
+
+	sparc64_send_ipi(p->p_cpu->ci_upaid, ipi_softint, 1 << IPL_NONE, 0UL);
+}
diff --git a/sys/arch/sparc64/sparc64/locore.s b/sys/arch/sparc64/sparc64/locore.s
index 5d335ec8a12..ac677c22686 100644
--- a/sys/arch/sparc64/sparc64/locore.s
+++ b/sys/arch/sparc64/sparc64/locore.s
@@ -1,4 +1,4 @@
-/*	$OpenBSD: locore.s,v 1.92 2007/10/20 16:41:46 miod Exp $	*/
+/*	$OpenBSD: locore.s,v 1.93 2007/10/20 16:54:52 miod Exp $	*/
 /*	$NetBSD: locore.s,v 1.137 2001/08/13 06:10:10 jdolecek Exp $	*/
 
 /*
@@ -3381,6 +3381,10 @@ ENTRY(ipi_drop_fpstate)
 	sethi	%hi(FPPROC), %g1
 	ba	ret_from_intr_vector
 	 stx	%g0, [%g1 + %lo(FPPROC)]	! fpproc = NULL
+
+ENTRY(ipi_softint)
+	ba	ret_from_intr_vector
+	 wr	%g3, 0, SET_SOFTINT
 #endif
 
 /*
diff --git a/sys/arch/sparc64/sparc64/machdep.c b/sys/arch/sparc64/sparc64/machdep.c
index 4e4474e0e81..0e168761167 100644
--- a/sys/arch/sparc64/sparc64/machdep.c
+++ b/sys/arch/sparc64/sparc64/machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: machdep.c,v 1.99 2007/10/16 20:33:27 kettenis Exp $	*/
+/*	$OpenBSD: machdep.c,v 1.100 2007/10/20 16:54:52 miod Exp $	*/
 /*	$NetBSD: machdep.c,v 1.108 2001/07/24 19:30:14 eeh Exp $ */
 
 /*-
@@ -677,7 +677,9 @@ signotify(struct proc *p)
 {
 	aston(p);
 #ifdef MULTIPROCESSOR
-	/* XXX Send IPI if necessary. */
+	/* Send IPI if necessary. */
+	if (p->p_cpu != curcpu() && p->p_cpu != NULL)
+		smp_signotify(p);
 #endif
 }