---

yaml --- r: 95998 b: refs/heads/master c: f74d505 h: refs/heads/master v: v3
git-mirror · May 5, 2008 · 4427fbf · 4427fbf
1 parent 3954b12
commit 4427fbf
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Showing 39 changed files with 653 additions and 189 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2961b423037da60a8cb230963ee0d8c04473d73b
+refs/heads/master: f74d505b58d36ceeef10e459094f0eb760681165
diff --git a/trunk/Documentation/kbuild/kconfig-language.txt b/trunk/Documentation/kbuild/kconfig-language.txt
@@ -377,27 +377,3 @@ config FOO
 
 limits FOO to module (=m) or disabled (=n).
 
-
-Build limited by a third config symbol which may be =y or =m
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-A common idiom that we see (and sometimes have problems with) is this:
-
-When option C in B (module or subsystem) uses interfaces from A (module
-or subsystem), and both A and B are tristate (could be =y or =m if they
-were independent of each other, but they aren't), then we need to limit
-C such that it cannot be built statically if A is built as a loadable
-module.  (C already depends on B, so there is no dependency issue to
-take care of here.)
-
-If A is linked statically into the kernel image, C can be built
-statically or as loadable module(s).  However, if A is built as loadable
-module(s), then C must be restricted to loadable module(s) also.  This
-can be expressed in kconfig language as:
-
-config C
-	depends on A = y || A = B
-
-or for real examples, use this command in a kernel tree:
-
-$ find . -name Kconfig\* | xargs grep -ns "depends on.*=.*||.*=" | grep -v orig
-
diff --git a/trunk/arch/powerpc/kvm/booke_guest.c b/trunk/arch/powerpc/kvm/booke_guest.c
@@ -49,6 +49,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
 	{ "inst_emu",   VCPU_STAT(emulated_inst_exits) },
 	{ "dec",        VCPU_STAT(dec_exits) },
 	{ "ext_intr",   VCPU_STAT(ext_intr_exits) },
+	{ "halt_wakeup", VCPU_STAT(halt_wakeup) },
 	{ NULL }
 };
 
@@ -338,6 +339,11 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
 		}
 		break;
 
+	case BOOKE_INTERRUPT_FP_UNAVAIL:
+		kvmppc_queue_exception(vcpu, exit_nr);
+		r = RESUME_GUEST;
+		break;
+
 	case BOOKE_INTERRUPT_DATA_STORAGE:
 		vcpu->arch.dear = vcpu->arch.fault_dear;
 		vcpu->arch.esr = vcpu->arch.fault_esr;

diff --git a/trunk/arch/powerpc/kvm/powerpc.c b/trunk/arch/powerpc/kvm/powerpc.c
@@ -36,13 +36,12 @@ gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn)
 
 int kvm_cpu_has_interrupt(struct kvm_vcpu *v)
 {
-	/* XXX implement me */
-	return 0;
+	return !!(v->arch.pending_exceptions);
 }
 
 int kvm_arch_vcpu_runnable(struct kvm_vcpu *v)
 {
-	return 1;
+	return !(v->arch.msr & MSR_WE);
 }
 
 
@@ -214,6 +213,11 @@ static void kvmppc_decrementer_func(unsigned long data)
 	struct kvm_vcpu *vcpu = (struct kvm_vcpu *)data;
 
 	kvmppc_queue_exception(vcpu, BOOKE_INTERRUPT_DECREMENTER);
+
+	if (waitqueue_active(&vcpu->wq)) {
+		wake_up_interruptible(&vcpu->wq);
+		vcpu->stat.halt_wakeup++;
+	}
 }
 
 int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
@@ -339,6 +343,8 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
 	int r;
 	sigset_t sigsaved;
 
+	vcpu_load(vcpu);
+
 	if (vcpu->sigset_active)
 		sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);
 
@@ -363,12 +369,20 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
 	if (vcpu->sigset_active)
 		sigprocmask(SIG_SETMASK, &sigsaved, NULL);
 
+	vcpu_put(vcpu);
+
 	return r;
 }
 
 int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq)
 {
 	kvmppc_queue_exception(vcpu, BOOKE_INTERRUPT_EXTERNAL);
+
+	if (waitqueue_active(&vcpu->wq)) {
+		wake_up_interruptible(&vcpu->wq);
+		vcpu->stat.halt_wakeup++;
+	}
+
 	return 0;
 }
 

diff --git a/trunk/arch/um/Makefile b/trunk/arch/um/Makefile
@@ -77,7 +77,10 @@ include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS)
 KERNEL_DEFINES = $(strip -Derrno=kernel_errno -Dsigprocmask=kernel_sigprocmask \
 			 -Dmktime=kernel_mktime $(ARCH_KERNEL_DEFINES))
 KBUILD_CFLAGS += $(KERNEL_DEFINES)
-KBUILD_CFLAGS += $(call cc-option,-fno-unit-at-a-time,)
+# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
+# a lot more stack due to the lack of sharing of stacklots:
+KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then \
+			echo $(call cc-option,-fno-unit-at-a-time); fi ;)
 
 PHONY += linux
 

diff --git a/trunk/arch/x86/Kconfig b/trunk/arch/x86/Kconfig
@@ -1661,6 +1661,7 @@ config GEODE_MFGPT_TIMER
 
 config OLPC
 	bool "One Laptop Per Child support"
+	depends on MGEODE_LX
 	default n
 	help
 	  Add support for detecting the unique features of the OLPC

diff --git a/trunk/arch/x86/boot/compressed/relocs.c b/trunk/arch/x86/boot/compressed/relocs.c
@@ -191,7 +191,7 @@ static void read_ehdr(FILE *fp)
 		die("Cannot read ELF header: %s\n",
 			strerror(errno));
 	}
-	if (memcmp(ehdr.e_ident, ELFMAG, 4) != 0) {
+	if (memcmp(ehdr.e_ident, ELFMAG, SELFMAG) != 0) {
 		die("No ELF magic\n");
 	}
 	if (ehdr.e_ident[EI_CLASS] != ELFCLASS32) {

diff --git a/trunk/arch/x86/kernel/acpi/Makefile b/trunk/arch/x86/kernel/acpi/Makefile
@@ -10,5 +10,5 @@ endif
 $(obj)/wakeup_rm.o:    $(obj)/realmode/wakeup.bin
 
 $(obj)/realmode/wakeup.bin: FORCE
-	$(Q)$(MAKE) $(build)=$(obj)/realmode $@
+	$(Q)$(MAKE) $(build)=$(obj)/realmode
 
diff --git a/trunk/arch/x86/kernel/acpi/realmode/Makefile b/trunk/arch/x86/kernel/acpi/realmode/Makefile
@@ -6,7 +6,8 @@
 # for more details.
 #
 
-targets		:= wakeup.bin wakeup.elf
+always		:= wakeup.bin
+targets		:= wakeup.elf wakeup.lds
 
 wakeup-y	+= wakeup.o wakemain.o video-mode.o copy.o
 
@@ -48,7 +49,7 @@ LDFLAGS_wakeup.elf	:= -T
 
 CPPFLAGS_wakeup.lds += -P -C
 
-$(obj)/wakeup.elf: $(src)/wakeup.lds $(WAKEUP_OBJS) FORCE
+$(obj)/wakeup.elf: $(obj)/wakeup.lds $(WAKEUP_OBJS) FORCE
 	$(call if_changed,ld)
 
 OBJCOPYFLAGS_wakeup.bin	:= -O binary

diff --git a/trunk/arch/x86/kernel/kvmclock.c b/trunk/arch/x86/kernel/kvmclock.c
@@ -133,6 +133,7 @@ static int kvm_register_clock(void)
 	return native_write_msr_safe(MSR_KVM_SYSTEM_TIME, low, high);
 }
 
+#ifdef CONFIG_X86_LOCAL_APIC
 static void kvm_setup_secondary_clock(void)
 {
 	/*
@@ -143,6 +144,7 @@ static void kvm_setup_secondary_clock(void)
 	/* ok, done with our trickery, call native */
 	setup_secondary_APIC_clock();
 }
+#endif
 
 /*
  * After the clock is registered, the host will keep writing to the
@@ -177,7 +179,9 @@ void __init kvmclock_init(void)
 		pv_time_ops.get_wallclock = kvm_get_wallclock;
 		pv_time_ops.set_wallclock = kvm_set_wallclock;
 		pv_time_ops.sched_clock = kvm_clock_read;
+#ifdef CONFIG_X86_LOCAL_APIC
 		pv_apic_ops.setup_secondary_clock = kvm_setup_secondary_clock;
+#endif
 		machine_ops.shutdown  = kvm_shutdown;
 #ifdef CONFIG_KEXEC
 		machine_ops.crash_shutdown  = kvm_crash_shutdown;

diff --git a/trunk/arch/x86/kernel/mpparse.c b/trunk/arch/x86/kernel/mpparse.c
@@ -794,6 +794,11 @@ void __init find_smp_config(void)
                             ACPI-based MP Configuration
    -------------------------------------------------------------------------- */
 
+/*
+ * Keep this outside and initialized to 0, for !CONFIG_ACPI builds:
+ */
+int es7000_plat;
+
 #ifdef CONFIG_ACPI
 
 #ifdef	CONFIG_X86_IO_APIC
@@ -909,8 +914,6 @@ void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, u32 gsi)
 	MP_intsrc_info(&intsrc);
 }
 
-int es7000_plat;
-
 void __init mp_config_acpi_legacy_irqs(void)
 {
 	struct mpc_config_intsrc intsrc;

diff --git a/trunk/arch/x86/kernel/reboot.c b/trunk/arch/x86/kernel/reboot.c
@@ -149,7 +149,6 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 745"),
-			DMI_MATCH(DMI_BOARD_NAME, "0WF810"),
 		},
 	},
 	{       /* Handle problems with rebooting on Dell Optiplex 745's DFF*/

diff --git a/trunk/arch/x86/kernel/setup.c b/trunk/arch/x86/kernel/setup.c
@@ -95,7 +95,7 @@ void __init setup_per_cpu_areas(void)
 
 	/* Copy section for each CPU (we discard the original) */
 	size = PERCPU_ENOUGH_ROOM;
-	printk(KERN_INFO "PERCPU: Allocating %lu bytes of per cpu data\n",
+	printk(KERN_INFO "PERCPU: Allocating %zd bytes of per cpu data\n",
 			  size);
 
 	for_each_possible_cpu(i) {

diff --git a/trunk/arch/x86/kernel/smpboot.c b/trunk/arch/x86/kernel/smpboot.c
@@ -299,7 +299,7 @@ static void __cpuinit smp_callin(void)
 /*
  * Activate a secondary processor.
  */
-void __cpuinit start_secondary(void *unused)
+static void __cpuinit start_secondary(void *unused)
 {
 	/*
 	 * Don't put *anything* before cpu_init(), SMP booting is too
@@ -1306,7 +1306,7 @@ static void remove_siblinginfo(int cpu)
 	cpu_clear(cpu, cpu_sibling_setup_map);
 }
 
-int additional_cpus __initdata = -1;
+static int additional_cpus __initdata = -1;
 
 static __init int setup_additional_cpus(char *s)
 {

diff --git a/trunk/arch/x86/kvm/i8254.c b/trunk/arch/x86/kvm/i8254.c
@@ -288,6 +288,8 @@ static void pit_load_count(struct kvm *kvm, int channel, u32 val)
 	 * mode 1 is one shot, mode 2 is period, otherwise del timer */
 	switch (ps->channels[0].mode) {
 	case 1:
+        /* FIXME: enhance mode 4 precision */
+	case 4:
 		create_pit_timer(&ps->pit_timer, val, 0);
 		break;
 	case 2: