svn commit: r331610 - in head/sys: amd64/include i386/include x86/x86 x86/xen

Jeff Roberson jeff at FreeBSD.org
Tue Mar 27 10:20:52 UTC 2018


Author: jeff
Date: Tue Mar 27 10:20:50 2018
New Revision: 331610
URL: https://svnweb.freebsd.org/changeset/base/331610

Log:
  Backout r331606 until I can identify why it does not boot on some
  machines.

Modified:
  head/sys/amd64/include/intr_machdep.h
  head/sys/i386/include/intr_machdep.h
  head/sys/x86/x86/intr_machdep.c
  head/sys/x86/x86/io_apic.c
  head/sys/x86/x86/msi.c
  head/sys/x86/x86/nexus.c
  head/sys/x86/xen/xen_intr.c

Modified: head/sys/amd64/include/intr_machdep.h
==============================================================================
--- head/sys/amd64/include/intr_machdep.h	Tue Mar 27 06:33:00 2018	(r331609)
+++ head/sys/amd64/include/intr_machdep.h	Tue Mar 27 10:20:50 2018	(r331610)
@@ -132,7 +132,6 @@ struct intsrc {
 	u_long *is_straycount;
 	u_int is_index;
 	u_int is_handlers;
-	u_int is_domain;
 	u_int is_cpu;
 };
 
@@ -169,7 +168,7 @@ void	intr_add_cpu(u_int cpu);
 #endif
 int	intr_add_handler(const char *name, int vector, driver_filter_t filter, 
 			 driver_intr_t handler, void *arg, enum intr_type flags, 
-			 void **cookiep, int domain);    
+			 void **cookiep);    
 #ifdef SMP
 int	intr_bind(u_int vector, u_char cpu);
 #endif
@@ -177,7 +176,7 @@ int	intr_config_intr(int vector, enum intr_trigger tri
     enum intr_polarity pol);
 int	intr_describe(u_int vector, void *ih, const char *descr);
 void	intr_execute_handlers(struct intsrc *isrc, struct trapframe *frame);
-u_int	intr_next_cpu(int domain);
+u_int	intr_next_cpu(void);
 struct intsrc *intr_lookup_source(int vector);
 int	intr_register_pic(struct pic *pic);
 int	intr_register_source(struct intsrc *isrc);

Modified: head/sys/i386/include/intr_machdep.h
==============================================================================
--- head/sys/i386/include/intr_machdep.h	Tue Mar 27 06:33:00 2018	(r331609)
+++ head/sys/i386/include/intr_machdep.h	Tue Mar 27 10:20:50 2018	(r331610)
@@ -132,7 +132,6 @@ struct intsrc {
 	u_long *is_straycount;
 	u_int is_index;
 	u_int is_handlers;
-	u_int is_domain;
 	u_int is_cpu;
 };
 
@@ -159,8 +158,7 @@ void	elcr_write_trigger(u_int irq, enum intr_trigger t
 void	intr_add_cpu(u_int cpu);
 #endif
 int	intr_add_handler(const char *name, int vector, driver_filter_t filter,
-    driver_intr_t handler, void *arg, enum intr_type flags, void **cookiep,
-    int domain);
+    driver_intr_t handler, void *arg, enum intr_type flags, void **cookiep);
 #ifdef SMP
 int	intr_bind(u_int vector, u_char cpu);
 #endif
@@ -168,7 +166,7 @@ int	intr_config_intr(int vector, enum intr_trigger tri
     enum intr_polarity pol);
 int	intr_describe(u_int vector, void *ih, const char *descr);
 void	intr_execute_handlers(struct intsrc *isrc, struct trapframe *frame);
-u_int	intr_next_cpu(int domain);
+u_int	intr_next_cpu(void);
 struct intsrc *intr_lookup_source(int vector);
 int	intr_register_pic(struct pic *pic);
 int	intr_register_source(struct intsrc *isrc);

Modified: head/sys/x86/x86/intr_machdep.c
==============================================================================
--- head/sys/x86/x86/intr_machdep.c	Tue Mar 27 06:33:00 2018	(r331609)
+++ head/sys/x86/x86/intr_machdep.c	Tue Mar 27 10:20:50 2018	(r331610)
@@ -71,8 +71,6 @@
 #include <isa/isareg.h>
 #endif
 
-#include <vm/vm.h>
-
 #define	MAX_STRAY_LOG	5
 
 typedef void (*mask_fn)(void *);
@@ -187,8 +185,7 @@ intr_lookup_source(int vector)
 
 int
 intr_add_handler(const char *name, int vector, driver_filter_t filter,
-    driver_intr_t handler, void *arg, enum intr_type flags, void **cookiep,
-    int domain)
+    driver_intr_t handler, void *arg, enum intr_type flags, void **cookiep)
 {
 	struct intsrc *isrc;
 	int error;
@@ -203,7 +200,6 @@ intr_add_handler(const char *name, int vector, driver_
 		intrcnt_updatename(isrc);
 		isrc->is_handlers++;
 		if (isrc->is_handlers == 1) {
-			isrc->is_domain = domain;
 			isrc->is_pic->pic_enable_intr(isrc);
 			isrc->is_pic->pic_enable_source(isrc);
 		}
@@ -511,27 +507,14 @@ DB_SHOW_COMMAND(irqs, db_show_irqs)
  */
 
 cpuset_t intr_cpus = CPUSET_T_INITIALIZER(0x1);
-static int current_cpu[MAXMEMDOM];
+static int current_cpu;
 
-static void
-intr_init_cpus(void)
-{
-	int i;
-
-	for (i = 0; i < vm_ndomains; i++) {
-		current_cpu[i] = 0;
-		if (!CPU_ISSET(current_cpu[i], &intr_cpus) ||
-		    !CPU_ISSET(current_cpu[i], &cpuset_domain[i]))
-			intr_next_cpu(i);
-	}
-}
-
 /*
  * Return the CPU that the next interrupt source should use.  For now
  * this just returns the next local APIC according to round-robin.
  */
 u_int
-intr_next_cpu(int domain)
+intr_next_cpu(void)
 {
 	u_int apic_id;
 
@@ -546,13 +529,12 @@ intr_next_cpu(int domain)
 #endif
 
 	mtx_lock_spin(&icu_lock);
-	apic_id = cpu_apic_ids[current_cpu[domain]];
+	apic_id = cpu_apic_ids[current_cpu];
 	do {
-		current_cpu[domain]++;
-		if (current_cpu[domain] > mp_maxid)
-			current_cpu[domain] = 0;
-	} while (!CPU_ISSET(current_cpu[domain], &intr_cpus) ||
-	    !CPU_ISSET(current_cpu[domain], &cpuset_domain[domain]));
+		current_cpu++;
+		if (current_cpu > mp_maxid)
+			current_cpu = 0;
+	} while (!CPU_ISSET(current_cpu, &intr_cpus));
 	mtx_unlock_spin(&icu_lock);
 	return (apic_id);
 }
@@ -586,18 +568,7 @@ intr_add_cpu(u_int cpu)
 	CPU_SET(cpu, &intr_cpus);
 }
 
-#ifdef EARLY_AP_STARTUP
-static void
-intr_smp_startup(void *arg __unused)
-{
-
-	intr_init_cpus();
-	return;
-}
-SYSINIT(intr_smp_startup, SI_SUB_SMP, SI_ORDER_SECOND, intr_smp_startup,
-    NULL);
-
-#else
+#ifndef EARLY_AP_STARTUP
 /*
  * Distribute all the interrupt sources among the available CPUs once the
  * AP's have been launched.
@@ -609,7 +580,6 @@ intr_shuffle_irqs(void *arg __unused)
 	u_int cpu;
 	int i;
 
-	intr_init_cpus();
 	/* Don't bother on UP. */
 	if (mp_ncpus == 1)
 		return;
@@ -629,12 +599,12 @@ intr_shuffle_irqs(void *arg __unused)
 			 */
 			cpu = isrc->is_event->ie_cpu;
 			if (cpu == NOCPU)
-				cpu = current_cpu[isrc->is_domain];
+				cpu = current_cpu;
 			if (isrc->is_pic->pic_assign_cpu(isrc,
 			    cpu_apic_ids[cpu]) == 0) {
 				isrc->is_cpu = cpu;
 				if (isrc->is_event->ie_cpu == NOCPU)
-					intr_next_cpu(isrc->is_domain);
+					intr_next_cpu();
 			}
 		}
 	}
@@ -665,11 +635,10 @@ sysctl_hw_intrs(SYSCTL_HANDLER_ARGS)
 		isrc = interrupt_sources[i];
 		if (isrc == NULL)
 			continue;
-		sbuf_printf(&sbuf, "%s:%d @cpu%d(domain%d): %ld\n",
+		sbuf_printf(&sbuf, "%s:%d @%d: %ld\n",
 		    isrc->is_event->ie_fullname,
 		    isrc->is_index,
 		    isrc->is_cpu,
-		    isrc->is_domain,
 		    *isrc->is_count);
 	}
 
@@ -728,7 +697,7 @@ intr_balance(void *dummy __unused, int pending __unuse
 	 * Restart the scan from the same location to avoid moving in the
 	 * common case.
 	 */
-	intr_init_cpus();
+	current_cpu = 0;
 
 	/*
 	 * Assign round-robin from most loaded to least.
@@ -737,8 +706,8 @@ intr_balance(void *dummy __unused, int pending __unuse
 		isrc = interrupt_sorted[i];
 		if (isrc == NULL  || isrc->is_event->ie_cpu != NOCPU)
 			continue;
-		cpu = current_cpu[isrc->is_domain];
-		intr_next_cpu(isrc->is_domain);
+		cpu = current_cpu;
+		intr_next_cpu();
 		if (isrc->is_cpu != cpu &&
 		    isrc->is_pic->pic_assign_cpu(isrc,
 		    cpu_apic_ids[cpu]) == 0)
@@ -766,7 +735,7 @@ SYSINIT(intr_balance_init, SI_SUB_SMP, SI_ORDER_ANY, i
  * Always route interrupts to the current processor in the UP case.
  */
 u_int
-intr_next_cpu(int domain)
+intr_next_cpu(void)
 {
 
 	return (PCPU_GET(apic_id));

Modified: head/sys/x86/x86/io_apic.c
==============================================================================
--- head/sys/x86/x86/io_apic.c	Tue Mar 27 06:33:00 2018	(r331609)
+++ head/sys/x86/x86/io_apic.c	Tue Mar 27 10:20:50 2018	(r331610)
@@ -499,7 +499,7 @@ ioapic_enable_intr(struct intsrc *isrc)
 	struct ioapic_intsrc *intpin = (struct ioapic_intsrc *)isrc;
 
 	if (intpin->io_vector == 0)
-		if (ioapic_assign_cpu(isrc, intr_next_cpu(isrc->is_domain)) != 0)
+		if (ioapic_assign_cpu(isrc, intr_next_cpu()) != 0)
 			panic("Couldn't find an APIC vector for IRQ %d",
 			    intpin->io_irq);
 	apic_enable_vector(intpin->io_cpu, intpin->io_vector);

Modified: head/sys/x86/x86/msi.c
==============================================================================
--- head/sys/x86/x86/msi.c	Tue Mar 27 06:33:00 2018	(r331609)
+++ head/sys/x86/x86/msi.c	Tue Mar 27 10:20:50 2018	(r331610)
@@ -363,7 +363,7 @@ int
 msi_alloc(device_t dev, int count, int maxcount, int *irqs)
 {
 	struct msi_intsrc *msi, *fsrc;
-	u_int cpu, domain;
+	u_int cpu;
 	int cnt, i, *mirqs, vector;
 #ifdef ACPI_DMAR
 	u_int cookies[count];
@@ -373,9 +373,6 @@ msi_alloc(device_t dev, int count, int maxcount, int *
 	if (!msi_enabled)
 		return (ENXIO);
 
-	if (bus_get_domain(dev, &domain) != 0)
-		domain = 0;
-
 	if (count > 1)
 		mirqs = malloc(count * sizeof(*mirqs), M_MSI, M_WAITOK);
 	else
@@ -423,7 +420,7 @@ again:
 	KASSERT(cnt == count, ("count mismatch"));
 
 	/* Allocate 'count' IDT vectors. */
-	cpu = intr_next_cpu(domain);
+	cpu = intr_next_cpu();
 	vector = apic_alloc_vectors(cpu, irqs, count, maxcount);
 	if (vector == 0) {
 		mtx_unlock(&msi_lock);
@@ -613,7 +610,7 @@ int
 msix_alloc(device_t dev, int *irq)
 {
 	struct msi_intsrc *msi;
-	u_int cpu, domain;
+	u_int cpu;
 	int i, vector;
 #ifdef ACPI_DMAR
 	u_int cookie;
@@ -623,9 +620,6 @@ msix_alloc(device_t dev, int *irq)
 	if (!msi_enabled)
 		return (ENXIO);
 
-	if (bus_get_domain(dev, &domain) != 0)
-		domain = 0;
-
 again:
 	mtx_lock(&msi_lock);
 
@@ -657,7 +651,7 @@ again:
 	}
 
 	/* Allocate an IDT vector. */
-	cpu = intr_next_cpu(domain);
+	cpu = intr_next_cpu();
 	vector = apic_alloc_vector(cpu, i);
 	if (vector == 0) {
 		mtx_unlock(&msi_lock);

Modified: head/sys/x86/x86/nexus.c
==============================================================================
--- head/sys/x86/x86/nexus.c	Tue Mar 27 06:33:00 2018	(r331609)
+++ head/sys/x86/x86/nexus.c	Tue Mar 27 10:20:50 2018	(r331610)
@@ -573,7 +573,7 @@ nexus_setup_intr(device_t bus, device_t child, struct 
 		 int flags, driver_filter_t filter, void (*ihand)(void *),
 		 void *arg, void **cookiep)
 {
-	int		error, domain;
+	int		error;
 
 	/* somebody tried to setup an irq that failed to allocate! */
 	if (irq == NULL)
@@ -589,11 +589,9 @@ nexus_setup_intr(device_t bus, device_t child, struct 
 	error = rman_activate_resource(irq);
 	if (error)
 		return (error);
-	if (bus_get_domain(child, &domain) != 0)
-		domain = 0;
 
 	error = intr_add_handler(device_get_nameunit(child),
-	    rman_get_start(irq), filter, ihand, arg, flags, cookiep, domain);
+	    rman_get_start(irq), filter, ihand, arg, flags, cookiep);
 
 	return (error);
 }

Modified: head/sys/x86/xen/xen_intr.c
==============================================================================
--- head/sys/x86/xen/xen_intr.c	Tue Mar 27 06:33:00 2018	(r331609)
+++ head/sys/x86/xen/xen_intr.c	Tue Mar 27 10:20:50 2018	(r331610)
@@ -430,7 +430,7 @@ xen_intr_bind_isrc(struct xenisrc **isrcp, evtchn_port
 		 * unless specified otherwise, so shuffle them to balance
 		 * the interrupt load.
 		 */
-		xen_intr_assign_cpu(&isrc->xi_intsrc, intr_next_cpu(0));
+		xen_intr_assign_cpu(&isrc->xi_intsrc, intr_next_cpu());
 	}
 #endif
 
@@ -1562,7 +1562,7 @@ xen_intr_add_handler(const char *name, driver_filter_t
 		return (EINVAL);
 
 	error = intr_add_handler(name, isrc->xi_vector,filter, handler, arg,
-	    flags|INTR_EXCL, &isrc->xi_cookie, 0);
+	    flags|INTR_EXCL, &isrc->xi_cookie);
 	if (error != 0) {
 		printf(
 		    "%s: xen_intr_add_handler: intr_add_handler failed: %d\n",


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