---

yaml
---
r: 5825
b: refs/heads/master
c: 2ad5649
h: refs/heads/master
i:
  5823: e134f1e
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: da5ca008933b3b28303ba44d0be3372fbac7748b
+refs/heads/master: 2ad56496627630ebc99f06af5f81ca23e17e014e

trunk/arch/ppc64/kernel/LparData.c

@@ -32,32 +32,12 @@
 /* The HvReleaseData is the root of the information shared between 
  * the hypervisor and Linux.  
  */
-
-/*
- * WARNING - magic here
- *
- * Ok, this is a horrid hack below, but marginally better than the
- * alternatives.  What we really want is just to initialize
- * hvReleaseData in C as in the #if 0 section here.  However, gcc
- * refuses to believe that (u32)&x is a constant expression, so will
- * not allow the xMsNucDataOffset field to be properly initialized.
- * So, we declare hvReleaseData in inline asm instead.  We use inline
- * asm, rather than a .S file, because the assembler won't generate
- * the necessary relocation for the LparMap either, unless that symbol
- * is declared in the same source file.  Finally, we put the asm in a
- * dummy, attribute-used function, instead of at file scope, because
- * file scope asms don't allow contraints.  We want to use the "i"
- * constraints to put sizeof() and offsetof() expressions in there,
- * because including asm/offsets.h in C code then stringifying causes
- * all manner of warnings.
- */
-#if 0
 struct HvReleaseData hvReleaseData = {
 	.xDesc = 0xc8a5d9c4,	/* "HvRD" ebcdic */
 	.xSize = sizeof(struct HvReleaseData),
 	.xVpdAreasPtrOffset = offsetof(struct naca_struct, xItVpdAreas),
 	.xSlicNacaAddr = &naca,		/* 64-bit Naca address */
-	.xMsNucDataOffset = (u32)((unsigned long)&xLparMap - KERNELBASE),
+	.xMsNucDataOffset = LPARMAP_PHYS,
 	.xFlags = HVREL_TAGSINACTIVE	/* tags inactive       */
 					/* 64 bit              */
 					/* shared processors   */
@@ -70,63 +50,6 @@ struct HvReleaseData hvReleaseData = {
 		0xa7, 0x40, 0xf2, 0x4b,
 		0xf4, 0x4b, 0xf6, 0xf4 },
 };
-#endif
-
-
-extern struct HvReleaseData hvReleaseData;
-
-static void __attribute_used__ hvReleaseData_wrapper(void)
-{
-	/* This doesn't appear to need any alignment (even 4 byte) */
-	asm volatile (
-		"	lparMapPhys = xLparMap - %3\n"
-		"	.data\n"
-		"	.globl	hvReleaseData\n"
-		"hvReleaseData:\n"
-		"	.long	0xc8a5d9c4\n"	/* xDesc */
-						/* "HvRD" in ebcdic */
-		"	.short	%0\n"		/* xSize */
-		"	.short	%1\n"		/* xVpdAreasPtrOffset */
-		"	.llong	naca\n"		/* xSlicNacaAddr */
-		"	.long	lparMapPhys\n"	/* xMsNucDataOffset */
-		"	.long	0\n"		/* xRsvd1 */
-		"	.short	%2\n"		/* xFlags */
-		"	.short	4\n"	/* xVrmIndex  - v5r2m0 */
-		"	.short	3\n"	/* xMinSupportedPlicVrmIndex - v5r1m0 */
-		"	.short	3\n"	/* xMinCompatablePlicVrmIndex - v5r1m0 */
-		"	.long	0xd38995a4\n"	/* xVrmName */
-		"	.long	0xa740f24b\n"	/*   "Linux 2.4.64" ebcdic */
-		"	.long	0xf44bf6f4\n"
-		"	. = hvReleaseData + %0\n"
-		"	.previous\n"
-		: : "i"(sizeof(hvReleaseData)),
-		"i"(offsetof(struct naca_struct, xItVpdAreas)),
-		"i"(HVREL_TAGSINACTIVE /* tags inactive, 64 bit, */
-				       /* shared processors, HMT allowed */
-		    | 6), /* TEMP: This allows non-GA drivers */
-		"i"(KERNELBASE)
-		);
-}
-
-struct LparMap __attribute__((aligned (16))) xLparMap = {
-	.xNumberEsids = HvEsidsToMap,
-	.xNumberRanges = HvRangesToMap,
-	.xSegmentTableOffs = STAB0_PAGE,
-
-	.xEsids = {
-		{ .xKernelEsid = GET_ESID(KERNELBASE),
-		  .xKernelVsid = KERNEL_VSID(KERNELBASE), },
-		{ .xKernelEsid = GET_ESID(VMALLOCBASE),
-		  .xKernelVsid = KERNEL_VSID(VMALLOCBASE), },
-	},
-
-	.xRanges = {
-		{ .xPages = HvPagesToMap,
-		  .xOffset = 0,
-		  .xVPN = KERNEL_VSID(KERNELBASE) << (SID_SHIFT - PAGE_SHIFT),
-		},
-	},
-};
 
 extern void system_reset_iSeries(void);
 extern void machine_check_iSeries(void);

trunk/arch/ppc64/kernel/Makefile

@@ -73,3 +73,8 @@ obj-$(CONFIG_ALTIVEC)		+= vecemu.o vector.o
 obj-$(CONFIG_KPROBES)		+= kprobes.o
 
 CFLAGS_ioctl32.o += -Ifs/
+
+ifeq ($(CONFIG_PPC_ISERIES),y)
+arch/ppc64/kernel/head.o: arch/ppc64/kernel/lparmap.s
+AFLAGS_head.o += -Iarch/ppc64/kernel
+endif

trunk/arch/ppc64/kernel/head.S

@@ -38,6 +38,7 @@
 #include <asm/cputable.h>
 #include <asm/setup.h>
 #include <asm/hvcall.h>
+#include <asm/iSeries/LparMap.h>
 
 #ifdef CONFIG_PPC_ISERIES
 #define DO_SOFT_DISABLE
@@ -679,6 +680,11 @@ hardware_interrupt_iSeries_masked:
 	.globl fwnmi_data_area
 fwnmi_data_area:
 
+#ifdef CONFIG_PPC_ISERIES
+	. = LPARMAP_PHYS
+#include "lparmap.s"
+#endif /* CONFIG_PPC_ISERIES */
+
 /*
  * Vectors for the FWNMI option.  Share common code.
  */

trunk/arch/ppc64/kernel/lparmap.c

@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2005  Stephen Rothwell  IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <asm/mmu.h>
+#include <asm/page.h>
+#include <asm/iSeries/LparMap.h>
+
+const struct LparMap __attribute__((__section__(".text"))) xLparMap = {
+	.xNumberEsids = HvEsidsToMap,
+	.xNumberRanges = HvRangesToMap,
+	.xSegmentTableOffs = STAB0_PAGE,
+
+	.xEsids = {
+		{ .xKernelEsid = GET_ESID(KERNELBASE),
+		  .xKernelVsid = KERNEL_VSID(KERNELBASE), },
+		{ .xKernelEsid = GET_ESID(VMALLOCBASE),
+		  .xKernelVsid = KERNEL_VSID(VMALLOCBASE), },
+	},
+
+	.xRanges = {
+		{ .xPages = HvPagesToMap,
+		  .xOffset = 0,
+		  .xVPN = KERNEL_VSID(KERNELBASE) << (SID_SHIFT - PAGE_SHIFT),
+		},
+	},
+};

trunk/include/asm-ppc64/iSeries/LparMap.h

@@ -19,6 +19,8 @@
 #ifndef _LPARMAP_H
 #define _LPARMAP_H
 
+#ifndef __ASSEMBLY__
+
 #include <asm/types.h>
 
 /*
@@ -71,6 +73,11 @@ struct LparMap {
 	} xRanges[HvRangesToMap];
 };
 
-extern struct LparMap		xLparMap;
+extern const struct LparMap	xLparMap;
+
+#endif /* __ASSEMBLY__ */
+
+/* the fixed address where the LparMap exists */
+#define LPARMAP_PHYS		0x7000
 
 #endif /* _LPARMAP_H */