Merge master.kernel.org:/home/davem/BK/sparc-2.5

into home.transmeta.com:/home/torvalds/v2.5/linux

arch/sparc64/defconfig

@@ -19,7 +19,7 @@ CONFIG_SYSCTL=y
 # Loadable module support
 #
 CONFIG_MODULES=y
-CONFIG_MODVERSIONS=y
+# CONFIG_MODVERSIONS is not set
 CONFIG_KMOD=y
 
 #
@@ -96,12 +96,10 @@ CONFIG_PROM_CONSOLE=y
 #
 CONFIG_FB=y
 CONFIG_DUMMY_CONSOLE=y
-# CONFIG_FB_RIVA is not set
 # CONFIG_FB_CLGEN is not set
-CONFIG_FB_PM2=y
-# CONFIG_FB_PM2_FIFO_DISCONNECT is not set
-CONFIG_FB_PM2_PCI=y
+# CONFIG_FB_PM2 is not set
 # CONFIG_FB_CYBER2000 is not set
+# CONFIG_FB_RIVA is not set
 # CONFIG_FB_MATROX is not set
 CONFIG_FB_ATY=y
 # CONFIG_FB_ATY_GX is not set
@@ -112,6 +110,8 @@ CONFIG_FB_ATY_CT=y
 # CONFIG_FB_NEOMAGIC is not set
 # CONFIG_FB_3DFX is not set
 # CONFIG_FB_VOODOO1 is not set
+# CONFIG_FB_TRIDENT is not set
+# CONFIG_FB_PM3 is not set
 CONFIG_FB_SBUS=y
 CONFIG_FB_CREATOR=y
 CONFIG_FB_CGSIX=y
@@ -215,7 +215,8 @@ CONFIG_DECNET_SIOCGIFCONF=y
 # CONFIG_BRIDGE is not set
 # CONFIG_X25 is not set
 # CONFIG_LAPB is not set
-# CONFIG_LLC is not set
+CONFIG_LLC=m
+CONFIG_LLC_UI=y
 # CONFIG_NET_DIVERT is not set
 # CONFIG_ECONET is not set
 # CONFIG_WAN_ROUTER is not set
@@ -292,7 +293,7 @@ CONFIG_BLK_DEV_IDEDMA=y
 # CONFIG_BLK_DEV_IDE_TCQ_DEFAULT is not set
 # CONFIG_IDEDMA_NEW_DRIVE_LISTINGS is not set
 # CONFIG_BLK_DEV_AEC62XX is not set
-# CONFIG_AEC62XX_TUNING is not set
+# CONFIG_AEC6280_BURST is not set
 CONFIG_BLK_DEV_ALI15X3=y
 # CONFIG_WDC_ALI15X3 is not set
 # CONFIG_BLK_DEV_AMD74XX is not set
@@ -315,6 +316,7 @@ CONFIG_BLK_DEV_NS87415=y
 # CONFIG_BLK_DEV_SL82C105 is not set
 # CONFIG_IDE_CHIPSETS is not set
 # CONFIG_IDEDMA_IVB is not set
+CONFIG_ATAPI=y
 CONFIG_IDEDMA_AUTO=y
 # CONFIG_BLK_DEV_ATARAID is not set
 # CONFIG_BLK_DEV_ATARAID_PDC is not set
@@ -539,7 +541,7 @@ CONFIG_SHAPER=m
 # CONFIG_WAN is not set
 
 #
-# "Tulip" family network device support
+# Tulip family network device support
 #
 CONFIG_NET_TULIP=y
 CONFIG_DE2104X=m
@@ -617,7 +619,6 @@ CONFIG_SOUND_GAMEPORT=y
 # CONFIG_QUOTA is not set
 # CONFIG_QFMT_V1 is not set
 # CONFIG_QFMT_V2 is not set
-# CONFIG_QIFACE_COMPAT is not set
 CONFIG_AUTOFS_FS=m
 CONFIG_AUTOFS4_FS=m
 # CONFIG_REISERFS_FS is not set
@@ -781,14 +782,13 @@ CONFIG_USB_EHCI_HCD=m
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_UHCI_HCD=m
 # CONFIG_USB_UHCI_HCD_ALT is not set
-CONFIG_USB_UHCI=y
-# CONFIG_USB_UHCI_ALT is not set
 
 #
 # USB Device Class drivers
 #
 # CONFIG_USB_AUDIO is not set
 CONFIG_USB_BLUETOOTH_TTY=m
+# CONFIG_USB_MIDI is not set
 CONFIG_USB_ACM=m
 CONFIG_USB_PRINTER=m
 CONFIG_USB_STORAGE=m
@@ -808,6 +808,7 @@ CONFIG_USB_STORAGE_SDDR55=y
 CONFIG_USB_HID=y
 CONFIG_USB_HIDINPUT=y
 CONFIG_USB_HIDDEV=y
+# CONFIG_USB_AIPTEK is not set
 CONFIG_USB_WACOM=m
 
 #
@@ -821,15 +822,15 @@ CONFIG_USB_HPUSBSCSI=m
 #
 # USB Multimedia devices
 #
-CONFIG_USB_DABUSB=m
-CONFIG_USB_VICAM=m
-CONFIG_USB_DSBR=m
-CONFIG_USB_IBMCAM=m
-CONFIG_USB_KONICAWC=m
-CONFIG_USB_OV511=m
-CONFIG_USB_PWC=m
-CONFIG_USB_SE401=m
-CONFIG_USB_STV680=m
+# CONFIG_USB_DABUSB is not set
+# CONFIG_USB_VICAM is not set
+# CONFIG_USB_DSBR is not set
+# CONFIG_USB_IBMCAM is not set
+# CONFIG_USB_KONICAWC is not set
+# CONFIG_USB_OV511 is not set
+# CONFIG_USB_PWC is not set
+# CONFIG_USB_SE401 is not set
+# CONFIG_USB_STV680 is not set
 
 #
 # USB Network adaptors

arch/sparc64/kernel/entry.S

@@ -1436,10 +1436,11 @@ ret_from_syscall:
 		 * %o7 for us.  Check performance counter stuff too.
 		 */
 		andn		%o7, _TIF_NEWCHILD, %l0
+		stx		%l0, [%g6 + TI_FLAGS]
 #if CONFIG_SMP || CONFIG_PREEMPT
 		call		schedule_tail
+		 mov		%g5, %o0
 #endif
-		 stx		%l0, [%g6 + TI_FLAGS]
 		andcc		%l0, _TIF_PERFCTR, %g0
 		be,pt		%icc, 1f
 		 nop

arch/sparc64/kernel/power.c

@@ -34,20 +34,28 @@ static void power_handler(int irq, void *dev_id, struct pt_regs *regs)
 #endif /* CONFIG_PCI */
 
 extern void machine_halt(void);
+extern void machine_alt_power_off(void);
+static void (*poweroff_method)(void) = machine_alt_power_off;
 
 extern int serial_console;
 
 void machine_power_off(void)
 {
+	if (!serial_console) {
 #ifdef CONFIG_PCI
-	if (power_reg != 0UL && !serial_console) {
+		if (power_reg != 0UL) {
 			/* Both register bits seem to have the
 			 * same effect, so until I figure out
 			 * what the difference is...
 			 */
 			writel(POWER_COURTESY_OFF | POWER_SYSTEM_OFF, power_reg);
-	}
+		} else
 #endif /* CONFIG_PCI */
+			if (poweroff_method != NULL) {
+				poweroff_method();
+				/* not reached */
+			}
+	}
 	machine_halt();
 }
 
@@ -98,6 +106,7 @@ void __init power_init(void)
 found:
 	power_reg = (unsigned long)ioremap(edev->resource[0].start, 0x4);
 	printk("power: Control reg at %016lx ... ", power_reg);
+	poweroff_method = machine_halt;  /* able to use the standard halt */
 	if (edev->irqs[0] != PCI_IRQ_NONE) {
 		if (kernel_thread(powerd, 0, CLONE_FS) < 0) {
 			printk("Failed to start power daemon.\n");

arch/sparc64/kernel/process.c

@@ -142,6 +142,21 @@ void machine_halt(void)
 	panic("Halt failed!");
 }
 
+void machine_alt_power_off(void)
+{
+	sti();
+	mdelay(8);
+	cli();
+#ifdef CONFIG_SUN_CONSOLE
+	if (!serial_console && prom_palette)
+		prom_palette(1);
+#endif
+	if (prom_keyboard)
+		prom_keyboard();
+	prom_halt_power_off();
+	panic("Power-off failed!");
+}
+
 void machine_restart(char * cmd)
 {
 	char *p;

arch/sparc64/prom/misc.c

@@ -97,6 +97,19 @@ prom_halt(void)
 	goto again; /* PROM is out to get me -DaveM */
 }
 
+void
+prom_halt_power_off(void)
+{
+#ifdef CONFIG_SMP
+	smp_promstop_others();
+	udelay(8000);
+#endif
+	p1275_cmd ("SUNW,power-off", P1275_INOUT(0,0));
+
+	/* if nothing else helps, we just halt */
+	prom_halt ();
+}
+
 /* Set prom sync handler to call function 'funcp'. */
 void
 prom_setcallback(callback_func_t funcp)

include/asm-sparc64/oplib.h

@@ -113,6 +113,9 @@ extern void prom_cmdline(void);
  */
 extern void prom_halt(void) __attribute__ ((noreturn));
 
+/* Halt and power-off the machine. */
+extern void prom_halt_power_off(void) __attribute__ ((noreturn));
+
 /* Set the PROM 'sync' callback function to the passed function pointer.
  * When the user gives the 'sync' command at the prom prompt while the
  * kernel is still active, the prom will call this routine.

include/asm-sparc64/system.h

@@ -143,7 +143,14 @@ extern void __flushw_user(void);
 
 #define flush_user_windows flushw_user
 #define flush_register_windows flushw_all
-#define prepare_to_switch flushw_all
+
+#define prepare_arch_schedule(prev)	task_lock(prev)
+#define finish_arch_schedule(prev)	task_unlock(prev)
+#define prepare_arch_switch(rq)		\
+do {	spin_unlock(&(rq)->lock);	\
+	flushw_all();			\
+} while (0)
+#define finish_arch_switch(rq)		__sti()
 
 #ifndef CONFIG_DEBUG_SPINLOCK
 #define CHECK_LOCKS(PREV)	do { } while(0)
@@ -172,50 +179,50 @@ if ((PREV)->thread.smp_lock_count) {					\
 	 * not preserve it's value.  Hairy, but it lets us remove 2 loads
 	 * and 2 stores in this critical code path.  -DaveM
 	 */
-#define switch_to(prev, next)							\
+#define switch_to(prev, next, last)					\
 do {	CHECK_LOCKS(prev);						\
 	if (test_thread_flag(TIF_PERFCTR)) {				\
 		unsigned long __tmp;					\
 		read_pcr(__tmp);					\
 		current_thread_info()->pcr_reg = __tmp;			\
 		read_pic(__tmp);					\
-		current_thread_info()->kernel_cntd0 += (unsigned int)(__tmp);	\
+		current_thread_info()->kernel_cntd0 += (unsigned int)(__tmp);\
 		current_thread_info()->kernel_cntd1 += ((__tmp) >> 32);	\
 	}								\
 	save_and_clear_fpu();						\
 	/* If you are tempted to conditionalize the following */	\
 	/* so that ASI is only written if it changes, think again. */	\
 	__asm__ __volatile__("wr %%g0, %0, %%asi"			\
-	: : "r" (__thread_flag_byte_ptr(next->thread_info)[TI_FLAG_BYTE_CURRENT_DS]));	\
+	: : "r" (__thread_flag_byte_ptr(next->thread_info)[TI_FLAG_BYTE_CURRENT_DS]));\
 	__asm__ __volatile__(						\
-	"mov	%%g6, %%g5\n\t"							\
+	"mov	%%g4, %%g5\n\t"						\
 	"wrpr	%%g0, 0x95, %%pstate\n\t"				\
 	"stx	%%i6, [%%sp + 2047 + 0x70]\n\t"				\
 	"stx	%%i7, [%%sp + 2047 + 0x78]\n\t"				\
 	"rdpr	%%wstate, %%o5\n\t"					\
-	"stx	%%o6, [%%g6 + %2]\n\t"						\
-	"stb	%%o5, [%%g6 + %1]\n\t"						\
+	"stx	%%o6, [%%g6 + %3]\n\t"					\
+	"stb	%%o5, [%%g6 + %2]\n\t"					\
 	"rdpr	%%cwp, %%o5\n\t"					\
-	"stb	%%o5, [%%g6 + %4]\n\t"						\
-	"mov	%0, %%g6\n\t"							\
-	"ldub	[%0 + %4], %%g1\n\t"						\
+	"stb	%%o5, [%%g6 + %5]\n\t"					\
+	"mov	%1, %%g6\n\t"						\
+	"ldub	[%1 + %5], %%g1\n\t"					\
 	"wrpr	%%g1, %%cwp\n\t"					\
-	"ldx	[%%g6 + %2], %%o6\n\t"						\
-	"ldub	[%%g6 + %1], %%o5\n\t"						\
-	"ldx	[%%g6 + %3], %%o7\n\t"						\
+	"ldx	[%%g6 + %3], %%o6\n\t"					\
+	"ldub	[%%g6 + %2], %%o5\n\t"					\
+	"ldx	[%%g6 + %4], %%o7\n\t"					\
 	"mov	%%g6, %%l2\n\t"						\
 	"wrpr	%%o5, 0x0, %%wstate\n\t"				\
 	"ldx	[%%sp + 2047 + 0x70], %%i6\n\t"				\
 	"ldx	[%%sp + 2047 + 0x78], %%i7\n\t"				\
 	"wrpr	%%g0, 0x94, %%pstate\n\t"				\
 	"mov	%%l2, %%g6\n\t"						\
-	"ldx	[%%g6 + %6], %%g4\n\t"						\
+	"ldx	[%%g6 + %7], %%g4\n\t"					\
 	"wrpr	%%g0, 0x96, %%pstate\n\t"				\
-	"andcc	%%o7, %5, %%g0\n\t"						\
+	"andcc	%%o7, %6, %%g0\n\t"					\
 	"bne,pn	%%icc, ret_from_syscall\n\t"				\
-	" nop\n\t"								\
-	: /* no outputs */							\
-	: "r" (next->thread_info),						\
+	" mov	%%g5, %0\n\t"						\
+	: "=&r" (last)							\
+	: "0" (next->thread_info),					\
 	  "i" (TI_WSTATE), "i" (TI_KSP), "i" (TI_FLAGS), "i" (TI_CWP),	\
 	  "i" (_TIF_NEWCHILD), "i" (TI_TASK)				\
 	: "cc", "g1", "g2", "g3", "g5", "g7",				\