powerpc: Fix some compile problems with the VDSO stuff

We needed the VDSO symbols in the arch/ppc asm-offsets.c, and there
were a few usages of _systemcfg still left lying around.

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

arch/powerpc/kernel/lparcfg.c

@@ -35,7 +35,7 @@
 #include <asm/time.h>
 #include <asm/iseries/it_exp_vpd_panel.h>
 #include <asm/prom.h>
-#include <asm/systemcfg.h>
+#include <asm/vdso_datapage.h>
 
 #define MODULE_VERS "1.6"
 #define MODULE_NAME "lparcfg"
@@ -369,7 +369,7 @@ static int lparcfg_data(struct seq_file *m, void *v)
 	lrdrp = (int *)get_property(rtas_node, "ibm,lrdr-capacity", NULL);
 
 	if (lrdrp == NULL) {
-		partition_potential_processors = _systemcfg->processorCount;
+		partition_potential_processors = vdso_data->processorCount;
 	} else {
 		partition_potential_processors = *(lrdrp + 4);
 	}

arch/powerpc/kernel/vdso32/Makefile

@@ -19,7 +19,7 @@ EXTRA_AFLAGS := -D__VDSO32__ -s
 
 obj-y += vdso32_wrapper.o
 extra-y += vdso32.lds
-CPPFLAGS_vdso32.lds += -P -C -U$(ARCH)
+CPPFLAGS_vdso32.lds += -P -C -Upowerpc
 
 # Force dependency (incbin is bad)
 $(obj)/vdso32_wrapper.o : $(obj)/vdso32.so

arch/powerpc/platforms/pseries/rtasd.c

@@ -27,7 +27,6 @@
 #include <asm/prom.h>
 #include <asm/nvram.h>
 #include <asm/atomic.h>
-#include <asm/systemcfg.h>
 
 #if 0
 #define DEBUG(A...)	printk(KERN_ERR A)

arch/powerpc/platforms/pseries/smp.c

@@ -46,7 +46,7 @@
 #include <asm/rtas.h>
 #include <asm/pSeries_reconfig.h>
 #include <asm/mpic.h>
-#include <asm/systemcfg.h>
+#include <asm/vdso_datapage.h>
 
 #include "plpar_wrappers.h"
 
@@ -97,7 +97,7 @@ int pSeries_cpu_disable(void)
 	int cpu = smp_processor_id();
 
 	cpu_clear(cpu, cpu_online_map);
-	_systemcfg->processorCount--;
+	vdso_data->processorCount--;
 
 	/*fix boot_cpuid here*/
 	if (cpu == boot_cpuid)

arch/ppc/kernel/asm-offsets.c

@@ -25,6 +25,7 @@
 #include <asm/processor.h>
 #include <asm/cputable.h>
 #include <asm/thread_info.h>
+#include <asm/vdso_datapage.h>
 
 #define DEFINE(sym, val) \
 	asm volatile("\n->" #sym " %0 " #val : : "i" (val))
@@ -143,5 +144,32 @@ main(void)
 
 	DEFINE(TASK_SIZE, TASK_SIZE);
 	DEFINE(NUM_USER_SEGMENTS, TASK_SIZE>>28);
+
+	/* datapage offsets for use by vdso */
+	DEFINE(CFG_TB_ORIG_STAMP, offsetof(struct vdso_data, tb_orig_stamp));
+	DEFINE(CFG_TB_TICKS_PER_SEC, offsetof(struct vdso_data, tb_ticks_per_sec));
+	DEFINE(CFG_TB_TO_XS, offsetof(struct vdso_data, tb_to_xs));
+	DEFINE(CFG_STAMP_XSEC, offsetof(struct vdso_data, stamp_xsec));
+	DEFINE(CFG_TB_UPDATE_COUNT, offsetof(struct vdso_data, tb_update_count));
+	DEFINE(CFG_TZ_MINUTEWEST, offsetof(struct vdso_data, tz_minuteswest));
+	DEFINE(CFG_TZ_DSTTIME, offsetof(struct vdso_data, tz_dsttime));
+	DEFINE(CFG_SYSCALL_MAP32, offsetof(struct vdso_data, syscall_map_32));
+	DEFINE(WTOM_CLOCK_SEC, offsetof(struct vdso_data, wtom_clock_sec));
+	DEFINE(WTOM_CLOCK_NSEC, offsetof(struct vdso_data, wtom_clock_nsec));
+	DEFINE(TVAL32_TV_SEC, offsetof(struct timeval, tv_sec));
+	DEFINE(TVAL32_TV_USEC, offsetof(struct timeval, tv_usec));
+	DEFINE(TSPEC32_TV_SEC, offsetof(struct timespec, tv_sec));
+	DEFINE(TSPEC32_TV_NSEC, offsetof(struct timespec, tv_nsec));
+
+	/* timeval/timezone offsets for use by vdso */
+	DEFINE(TZONE_TZ_MINWEST, offsetof(struct timezone, tz_minuteswest));
+	DEFINE(TZONE_TZ_DSTTIME, offsetof(struct timezone, tz_dsttime));
+
+	/* Other bits used by the vdso */
+	DEFINE(CLOCK_REALTIME, CLOCK_REALTIME);
+	DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
+	DEFINE(NSEC_PER_SEC, NSEC_PER_SEC);
+	DEFINE(CLOCK_REALTIME_RES, TICK_NSEC);
+
 	return 0;
 }