powerpc: Merge machdep.h

A few things change for consistency between ppc32 and ppc64:
idle functions return void; *_get_boot_time functions return
unsigned long (i.e. time_t) rather than filling in a struct rtc_time
(since that's useful to the callers and easier for pmac to
generate); *_get_rtc_time and *_set_rtc_time functions take
a struct rtc_time; irq_canonicalize is gone; nvram_sync returns
void.

Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/platforms/iseries/mf.c

@@ -32,6 +32,7 @@
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/bcd.h>
+#include <linux/rtc.h>
 
 #include <asm/time.h>
 #include <asm/uaccess.h>
@@ -1307,11 +1308,14 @@ int iSeries_set_rtc_time(struct rtc_time *tm)
 	return 0;
 }
 
-void iSeries_get_boot_time(struct rtc_time *tm)
+unsigned long iSeries_get_boot_time(void)
 {
+	struct rtc_time tm;
+
 	if (piranha_simulator)
-		return;
+		return 0;
 
-	mf_get_boot_rtc(tm);
-	tm->tm_mon  -= 1;
+	mf_get_boot_rtc(&tm);
+	return mktime(tm.tm_year + 1900, tm.tm_mon, tm.tm_mday,
+		      tm.tm_hour, tm.tm_min, tm.tm_sec);
 }

arch/powerpc/platforms/iseries/setup.c

@@ -73,8 +73,8 @@ extern void hvlog(char *fmt, ...);
 extern void ppcdbg_initialize(void);
 
 static void build_iSeries_Memory_Map(void);
-static int iseries_shared_idle(void);
-static int iseries_dedicated_idle(void);
+static void iseries_shared_idle(void);
+static void iseries_dedicated_idle(void);
 #ifdef CONFIG_PCI
 extern void iSeries_pci_final_fixup(void);
 #else
@@ -693,7 +693,7 @@ static void yield_shared_processor(void)
 	process_iSeries_events();
 }
 
-static int iseries_shared_idle(void)
+static void iseries_shared_idle(void)
 {
 	while (1) {
 		while (!need_resched() && !hvlpevent_is_pending()) {
@@ -715,11 +715,9 @@ static int iseries_shared_idle(void)
 
 		schedule();
 	}
-
-	return 0;
 }
 
-static int iseries_dedicated_idle(void)
+static void iseries_dedicated_idle(void)
 {
 	long oldval;
 
@@ -749,8 +747,6 @@ static int iseries_dedicated_idle(void)
 		ppc64_runlatch_on();
 		schedule();
 	}
-
-	return 0;
 }
 
 #ifndef CONFIG_PCI

arch/powerpc/platforms/iseries/setup.h

@@ -17,7 +17,7 @@
 #ifndef	__ISERIES_SETUP_H__
 #define	__ISERIES_SETUP_H__
 
-extern void iSeries_get_boot_time(struct rtc_time *tm);
+extern unsigned long iSeries_get_boot_time(void);
 extern int iSeries_set_rtc_time(struct rtc_time *tm);
 extern void iSeries_get_rtc_time(struct rtc_time *tm);
 

arch/powerpc/platforms/powermac/pmac.h

@@ -10,9 +10,12 @@
  * pmac_* files. Mostly for use by pmac_setup
  */
 
+struct rtc_time;
+
 extern long pmac_time_init(void);
-extern unsigned long pmac_get_rtc_time(void);
-extern int pmac_set_rtc_time(unsigned long nowtime);
+extern unsigned long pmac_get_boot_time(void);
+extern void pmac_get_rtc_time(struct rtc_time *);
+extern int pmac_set_rtc_time(struct rtc_time *);
 extern void pmac_read_rtc_time(void);
 extern void pmac_calibrate_decr(void);
 extern void pmac_pcibios_fixup(void);

arch/powerpc/platforms/powermac/setup.c

@@ -562,7 +562,6 @@ void __init pmac_init(void)
 	ppc_md.setup_arch     = pmac_setup_arch;
 	ppc_md.show_cpuinfo   = pmac_show_cpuinfo;
 	ppc_md.show_percpuinfo = pmac_show_percpuinfo;
-	ppc_md.irq_canonicalize = NULL;
 	ppc_md.init_IRQ       = pmac_pic_init;
 	ppc_md.get_irq        = pmac_get_irq; /* Changed later on ... */
 
@@ -578,6 +577,7 @@ void __init pmac_init(void)
 	ppc_md.time_init      = pmac_time_init;
 	ppc_md.set_rtc_time   = pmac_set_rtc_time;
 	ppc_md.get_rtc_time   = pmac_get_rtc_time;
+	ppc_md.get_boot_time  = pmac_get_boot_time;
 	ppc_md.calibrate_decr = pmac_calibrate_decr;
 
 	ppc_md.feature_call   = pmac_do_feature_call;

arch/powerpc/platforms/powermac/time.c

@@ -77,8 +77,7 @@ pmac_time_init(void)
 #endif
 }
 
-unsigned long
-pmac_get_rtc_time(void)
+unsigned long pmac_get_boot_time(void)
 {
 #if defined(CONFIG_ADB_CUDA) || defined(CONFIG_ADB_PMU)
 	struct adb_request req;
@@ -118,20 +117,33 @@ pmac_get_rtc_time(void)
 	return 0;
 }
 
-int
-pmac_set_rtc_time(unsigned long nowtime)
+void pmac_get_rtc_time(struct rtc_time *tm)
 {
+	unsigned long now;
+
+	now = pmac_get_boot_time();
+	to_tm(now, tm);
+	tm->tm_year -= 1900;
+	tm->tm_mon -= 1;		/* month is 0-based */
+}
+
+int pmac_set_rtc_time(struct rtc_time *tm)
+{
+	unsigned long nowtime;
 #if defined(CONFIG_ADB_CUDA) || defined(CONFIG_ADB_PMU)
 	struct adb_request req;
 #endif
 
+	nowtime = mktime(tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday,
+			 tm->tm_hour, tm->tm_min, tm->tm_sec);
 	nowtime += RTC_OFFSET;
 
 	switch (sys_ctrler) {
 #ifdef CONFIG_ADB_CUDA
 	case SYS_CTRLER_CUDA:
 		if (cuda_request(&req, NULL, 6, CUDA_PACKET, CUDA_SET_TIME,
-				 nowtime >> 24, nowtime >> 16, nowtime >> 8, nowtime) < 0)
+				 nowtime >> 24, nowtime >> 16, nowtime >> 8,
+				 nowtime) < 0)
 			return 0;
 		while (!req.complete)
 			cuda_poll();
@@ -221,7 +233,7 @@ time_sleep_notify(struct pmu_sleep_notifier *self, int when)
 	case PBOOK_SLEEP_NOW:
 		do {
 			seq = read_seqbegin_irqsave(&xtime_lock, flags);
-			time_diff = xtime.tv_sec - pmac_get_rtc_time();
+			time_diff = xtime.tv_sec - pmac_get_boot_time();
 		} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
 		break;
 	case PBOOK_WAKE:

arch/powerpc/platforms/pseries/setup.c

@@ -84,8 +84,8 @@ int fwnmi_active;  /* TRUE if an FWNMI handler is present */
 extern void pSeries_system_reset_exception(struct pt_regs *regs);
 extern int pSeries_machine_check_exception(struct pt_regs *regs);
 
-static int pseries_shared_idle(void);
-static int pseries_dedicated_idle(void);
+static void pseries_shared_idle(void);
+static void pseries_dedicated_idle(void);
 
 static volatile void __iomem * chrp_int_ack_special;
 struct mpic *pSeries_mpic;
@@ -488,8 +488,8 @@ static inline void dedicated_idle_sleep(unsigned int cpu)
 	}
 }
 
-static int pseries_dedicated_idle(void)
-{
+static void pseries_dedicated_idle(void)
+{ 
 	long oldval;
 	struct paca_struct *lpaca = get_paca();
 	unsigned int cpu = smp_processor_id();
@@ -544,7 +544,7 @@ static int pseries_dedicated_idle(void)
 	}
 }
 
-static int pseries_shared_idle(void)
+static void pseries_shared_idle(void)
 {
 	struct paca_struct *lpaca = get_paca();
 	unsigned int cpu = smp_processor_id();
@@ -586,8 +586,6 @@ static int pseries_shared_idle(void)
 		if (cpu_is_offline(cpu) && system_state == SYSTEM_RUNNING)
 			cpu_die();
 	}
-
-	return 0;
 }
 
 static int pSeries_pci_probe_mode(struct pci_bus *bus)

arch/ppc64/kernel/idle.c

@@ -31,7 +31,7 @@
 
 extern void power4_idle(void);
 
-int default_idle(void)
+void default_idle(void)
 {
 	long oldval;
 	unsigned int cpu = smp_processor_id();
@@ -64,11 +64,9 @@ int default_idle(void)
 		if (cpu_is_offline(cpu) && system_state == SYSTEM_RUNNING)
 			cpu_die();
 	}
-
-	return 0;
 }
 
-int native_idle(void)
+void native_idle(void)
 {
 	while (1) {
 		ppc64_runlatch_off();
@@ -85,8 +83,6 @@ int native_idle(void)
 		    system_state == SYSTEM_RUNNING)
 			cpu_die();
 	}
-
-	return 0;
 }
 
 void cpu_idle(void)

arch/ppc64/kernel/maple_setup.c

@@ -70,7 +70,7 @@
 
 extern int maple_set_rtc_time(struct rtc_time *tm);
 extern void maple_get_rtc_time(struct rtc_time *tm);
-extern void maple_get_boot_time(struct rtc_time *tm);
+extern unsigned long maple_get_boot_time(void);
 extern void maple_calibrate_decr(void);
 extern void maple_pci_init(void);
 extern void maple_pcibios_fixup(void);

arch/ppc64/kernel/maple_time.c

@@ -156,8 +156,9 @@ int maple_set_rtc_time(struct rtc_time *tm)
 	return 0;
 }
 
-void __init maple_get_boot_time(struct rtc_time *tm)
+unsigned long __init maple_get_boot_time(void)
 {
+	struct rtc_time tm;
 	struct device_node *rtcs;
 
 	rtcs = find_compatible_devices("rtc", "pnpPNP,b00");
@@ -170,6 +171,8 @@ void __init maple_get_boot_time(struct rtc_time *tm)
 		       "legacy address (0x%x)\n", maple_rtc_addr);
 	}
 
-	maple_get_rtc_time(tm);
+	maple_get_rtc_time(&tm);
+	return mktime(time->tm_year+1900, time->tm_mon+1, time->tm_mday,
+		      time->tm_hour, time->tm_min, time->tm_sec);
 }
 

arch/ppc64/kernel/pmac.h

@@ -9,7 +9,7 @@
  * pmac_* files. Mostly for use by pmac_setup
  */
 
-extern void pmac_get_boot_time(struct rtc_time *tm);
+extern unsigned long pmac_get_boot_time(void);
 extern void pmac_get_rtc_time(struct rtc_time *tm);
 extern int  pmac_set_rtc_time(struct rtc_time *tm);
 extern void pmac_read_rtc_time(void);

arch/ppc64/kernel/pmac_nvram.c

@@ -341,7 +341,7 @@ static int amd_write_bank(int bank, u8* datas)
 }
 
 
-static int core99_nvram_sync(void)
+static void core99_nvram_sync(void)
 {
 	struct core99_header* hdr99;
 	unsigned long flags;
@@ -369,8 +369,6 @@ static int core99_nvram_sync(void)
 			printk("nvram: Error writing bank %d\n", core99_bank);
  bail:
 	spin_unlock_irqrestore(&nv_lock, flags);
-
-	return 0;
 }
 
 int __init pmac_nvram_init(void)

arch/ppc64/kernel/pmac_time.c

@@ -21,6 +21,7 @@
 #include <linux/adb.h>
 #include <linux/pmu.h>
 #include <linux/interrupt.h>
+#include <linux/rtc.h>
 
 #include <asm/sections.h>
 #include <asm/prom.h>
@@ -135,23 +136,13 @@ int pmac_set_rtc_time(struct rtc_time *tm)
 	}
 }
 
-void __init pmac_get_boot_time(struct rtc_time *tm)
+unsigned long __init pmac_get_boot_time(void)
 {
-	pmac_get_rtc_time(tm);
+	struct rtc_time tm;
 
-#ifdef disabled__CONFIG_NVRAM
-	s32 delta = 0;
-	int dst;
-
-	delta = ((s32)pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0x9)) << 16;
-	delta |= ((s32)pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0xa)) << 8;
-	delta |= pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0xb);
-	if (delta & 0x00800000UL)
-		delta |= 0xFF000000UL;
-	dst = ((pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0x8) & 0x80) != 0);
-	printk("GMT Delta read from XPRAM: %d minutes, DST: %s\n", delta/60,
-		dst ? "on" : "off");
-#endif
+	pmac_get_rtc_time(&tm);
+	return mktime(tm.tm_year+1900, tm.tm_mon+1, tm.tm_mday,
+		      tm.tm_hour, tm.tm_min, tm.tm_sec);
 }
 
 /*

arch/ppc64/kernel/rtas-proc.c

@@ -23,6 +23,7 @@
 #include <linux/init.h>
 #include <linux/seq_file.h>
 #include <linux/bitops.h>
+#include <linux/rtc.h>
 
 #include <asm/uaccess.h>
 #include <asm/processor.h>

arch/ppc64/kernel/rtc.c

@@ -265,7 +265,7 @@ static int rtc_read_proc(char *page, char **start, off_t off,
 #ifdef CONFIG_PPC_RTAS
 #define MAX_RTC_WAIT 5000	/* 5 sec */
 #define RTAS_CLOCK_BUSY (-2)
-void rtas_get_boot_time(struct rtc_time *rtc_tm)
+unsigned long rtas_get_boot_time(void)
 {
 	int ret[8];
 	int error, wait_time;
@@ -285,15 +285,10 @@ void rtas_get_boot_time(struct rtc_time *rtc_tm)
 	if (error != 0 && printk_ratelimit()) {
 		printk(KERN_WARNING "error: reading the clock failed (%d)\n",
 			error);
-		return;
+		return 0;
 	}
 
-	rtc_tm->tm_sec = ret[5];
-	rtc_tm->tm_min = ret[4];
-	rtc_tm->tm_hour = ret[3];
-	rtc_tm->tm_mday = ret[2];
-	rtc_tm->tm_mon = ret[1] - 1;
-	rtc_tm->tm_year = ret[0] - 1900;
+	return mktime(ret[0], ret[1], ret[2], ret[3], ret[4], ret[5]);
 }
 
 /* NOTE: get_rtc_time will get an error if executed in interrupt context