powerpc: Split systemcfg struct definitions out from vdso

The systemcfg data has nothing to do anymore with the vdso.
Split it into a dedicated header file.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-27-b64f0842d512@linutronix.de

8 files changed, 58 insertions, 37 deletions

diff --git a/arch/powerpc/include/asm/systemcfg.h b/arch/powerpc/include/asm/systemcfg.h
new file mode 100644
index 000000000000..2f9b1d6a5c98
--- /dev/null
+++ b/arch/powerpc/include/asm/systemcfg.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef _SYSTEMCFG_H
+#define _SYSTEMCFG_H
+
+/*
+ * Copyright (C) 2002 Peter Bergner <bergner@vnet.ibm.com>, IBM
+ * Copyright (C) 2005 Benjamin Herrenschmidy <benh@kernel.crashing.org>,
+ * 		      IBM Corp.
+ */
+
+#ifdef CONFIG_PPC64
+
+/*
+ * If the major version changes we are incompatible.
+ * Minor version changes are a hint.
+ */
+#define SYSTEMCFG_MAJOR 1
+#define SYSTEMCFG_MINOR 1
+
+#include <linux/types.h>
+
+struct systemcfg {
+	__u8  eye_catcher[16];		/* Eyecatcher: SYSTEMCFG:PPC64	0x00 */
+	struct {			/* Systemcfg version numbers	     */
+		__u32 major;		/* Major number			0x10 */
+		__u32 minor;		/* Minor number			0x14 */
+	} version;
+
+	/* Note about the platform flags: it now only contains the lpar
+	 * bit. The actual platform number is dead and buried
+	 */
+	__u32 platform;			/* Platform flags		0x18 */
+	__u32 processor;		/* Processor type		0x1C */
+	__u64 processorCount;		/* # of physical processors	0x20 */
+	__u64 physicalMemorySize;	/* Size of real memory(B)	0x28 */
+	__u64 tb_orig_stamp;		/* (NU) Timebase at boot	0x30 */
+	__u64 tb_ticks_per_sec;		/* Timebase tics / sec		0x38 */
+	__u64 tb_to_xs;			/* (NU) Inverse of TB to 2^20	0x40 */
+	__u64 stamp_xsec;		/* (NU)				0x48 */
+	__u64 tb_update_count;		/* (NU) Timebase atomicity ctr	0x50 */
+	__u32 tz_minuteswest;		/* (NU) Min. west of Greenwich	0x58 */
+	__u32 tz_dsttime;		/* (NU) Type of dst correction	0x5C */
+	__u32 dcache_size;		/* L1 d-cache size		0x60 */
+	__u32 dcache_line_size;		/* L1 d-cache line size		0x64 */
+	__u32 icache_size;		/* L1 i-cache size		0x68 */
+	__u32 icache_line_size;		/* L1 i-cache line size		0x6C */
+};
+
+extern struct systemcfg *systemcfg;
+
+#endif /* CONFIG_PPC64 */
+#endif /* _SYSTEMCFG_H */
diff --git a/arch/powerpc/include/asm/vdso_datapage.h b/arch/powerpc/include/asm/vdso_datapage.h
index 8b91b1d34ff6..a9686310be2c 100644
--- a/arch/powerpc/include/asm/vdso_datapage.h
+++ b/arch/powerpc/include/asm/vdso_datapage.h
@@ -9,14 +9,6 @@
  * 		      IBM Corp.
  */
 
-
-/*
- * If the major version changes we are incompatible.
- * Minor version changes are a hint.
- */
-#define SYSTEMCFG_MAJOR 1
-#define SYSTEMCFG_MINOR 1
-
 #ifndef __ASSEMBLY__
 
 #include <linux/unistd.h>
@@ -27,35 +19,6 @@
 
 #ifdef CONFIG_PPC64
 
-struct systemcfg {
-	__u8  eye_catcher[16];		/* Eyecatcher: SYSTEMCFG:PPC64	0x00 */
-	struct {			/* Systemcfg version numbers	     */
-		__u32 major;		/* Major number			0x10 */
-		__u32 minor;		/* Minor number			0x14 */
-	} version;
-
-	/* Note about the platform flags: it now only contains the lpar
-	 * bit. The actual platform number is dead and buried
-	 */
-	__u32 platform;			/* Platform flags		0x18 */
-	__u32 processor;		/* Processor type		0x1C */
-	__u64 processorCount;		/* # of physical processors	0x20 */
-	__u64 physicalMemorySize;	/* Size of real memory(B)	0x28 */
-	__u64 tb_orig_stamp;		/* (NU) Timebase at boot	0x30 */
-	__u64 tb_ticks_per_sec;		/* Timebase tics / sec		0x38 */
-	__u64 tb_to_xs;			/* (NU) Inverse of TB to 2^20	0x40 */
-	__u64 stamp_xsec;		/* (NU)				0x48 */
-	__u64 tb_update_count;		/* (NU) Timebase atomicity ctr	0x50 */
-	__u32 tz_minuteswest;		/* (NU) Min. west of Greenwich	0x58 */
-	__u32 tz_dsttime;		/* (NU) Type of dst correction	0x5C */
-	__u32 dcache_size;		/* L1 d-cache size		0x60 */
-	__u32 dcache_line_size;		/* L1 d-cache line size		0x64 */
-	__u32 icache_size;		/* L1 i-cache size		0x68 */
-	__u32 icache_line_size;		/* L1 i-cache line size		0x6C */
-};
-
-extern struct systemcfg *systemcfg;
-
 struct vdso_arch_data {
 	__u64 tb_ticks_per_sec;			/* Timebase tics / sec */
 	__u32 dcache_block_size;		/* L1 d-cache block size     */
diff --git a/arch/powerpc/kernel/proc_powerpc.c b/arch/powerpc/kernel/proc_powerpc.c
index e8083e05a1d0..3816a2bf2b84 100644
--- a/arch/powerpc/kernel/proc_powerpc.c
+++ b/arch/powerpc/kernel/proc_powerpc.c
@@ -13,6 +13,7 @@
 #include <asm/machdep.h>
 #include <asm/vdso_datapage.h>
 #include <asm/rtas.h>
+#include <asm/systemcfg.h>
 #include <linux/uaccess.h>
 
 #ifdef CONFIG_PPC64_PROC_SYSTEMCFG
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index d0b32ff2bc8d..0b732d3b283b 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -67,6 +67,7 @@
 #include <asm/cpu_has_feature.h>
 #include <asm/kasan.h>
 #include <asm/mce.h>
+#include <asm/systemcfg.h>
 
 #include "setup.h"
 
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 87ae45bf1045..5ac7084eebc0 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -61,6 +61,7 @@
 #include <asm/ftrace.h>
 #include <asm/kup.h>
 #include <asm/fadump.h>
+#include <asm/systemcfg.h>
 
 #include <trace/events/ipi.h>
 
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 7d18eb83198b..0727332ad86f 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -71,6 +71,7 @@
 #include <asm/vdso_datapage.h>
 #include <asm/firmware.h>
 #include <asm/mce.h>
+#include <asm/systemcfg.h>
 
 /* powerpc clocksource/clockevent code */
 
diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c
index 672209428b98..2e9da58195f5 100644
--- a/arch/powerpc/platforms/powernv/smp.c
+++ b/arch/powerpc/platforms/powernv/smp.c
@@ -36,6 +36,7 @@
 #include <asm/kexec.h>
 #include <asm/reg.h>
 #include <asm/powernv.h>
+#include <asm/systemcfg.h>
 
 #include "powernv.h"
 
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index 7b80d35d045d..bc6926dbf148 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -33,6 +33,7 @@
 #include <asm/xive.h>
 #include <asm/plpar_wrappers.h>
 #include <asm/topology.h>
+#include <asm/systemcfg.h>
 
 #include "pseries.h"