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[Xen-merge] [PATCH 05/23] fixmap subarch headers

To: xen-merge@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-merge] [PATCH 05/23] fixmap subarch headers
From: Chris Wright <chrisw@xxxxxxxx>
Date: Mon, 08 Aug 2005 00:02:41 -0700
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--- linux-2.6.12-xen0-arch.orig/include/asm-i386/fixmap.h
+++ linux-2.6.12-xen0-arch/include/asm-i386/fixmap.h
@@ -15,82 +15,9 @@
 
 #include <linux/config.h>
 
-/* used by vmalloc.c, vsyscall.lds.S.
- *
- * Leave one empty page between vmalloc'ed areas and
- * the start of the fixmap.
- */
-#define __FIXADDR_TOP  0xfffff000
+#include <mach_fixmap.h>
 
 #ifndef __ASSEMBLY__
-#include <linux/kernel.h>
-#include <asm/acpi.h>
-#include <asm/apicdef.h>
-#include <asm/page.h>
-#ifdef CONFIG_HIGHMEM
-#include <linux/threads.h>
-#include <asm/kmap_types.h>
-#endif
-
-/*
- * Here we define all the compile-time 'special' virtual
- * addresses. The point is to have a constant address at
- * compile time, but to set the physical address only
- * in the boot process. We allocate these special addresses
- * from the end of virtual memory (0xfffff000) backwards.
- * Also this lets us do fail-safe vmalloc(), we
- * can guarantee that these special addresses and
- * vmalloc()-ed addresses never overlap.
- *
- * these 'compile-time allocated' memory buffers are
- * fixed-size 4k pages. (or larger if used with an increment
- * highger than 1) use fixmap_set(idx,phys) to associate
- * physical memory with fixmap indices.
- *
- * TLB entries of such buffers will not be flushed across
- * task switches.
- */
-enum fixed_addresses {
-       FIX_HOLE,
-       FIX_VSYSCALL,
-#ifdef CONFIG_X86_LOCAL_APIC
-       FIX_APIC_BASE,  /* local (CPU) APIC) -- required for SMP or not */
-#endif
-#ifdef CONFIG_X86_IO_APIC
-       FIX_IO_APIC_BASE_0,
-       FIX_IO_APIC_BASE_END = FIX_IO_APIC_BASE_0 + MAX_IO_APICS-1,
-#endif
-#ifdef CONFIG_X86_VISWS_APIC
-       FIX_CO_CPU,     /* Cobalt timer */
-       FIX_CO_APIC,    /* Cobalt APIC Redirection Table */ 
-       FIX_LI_PCIA,    /* Lithium PCI Bridge A */
-       FIX_LI_PCIB,    /* Lithium PCI Bridge B */
-#endif
-#ifdef CONFIG_X86_F00F_BUG
-       FIX_F00F_IDT,   /* Virtual mapping for IDT */
-#endif
-#ifdef CONFIG_X86_CYCLONE_TIMER
-       FIX_CYCLONE_TIMER, /*cyclone timer register*/
-#endif 
-#ifdef CONFIG_HIGHMEM
-       FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */
-       FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1,
-#endif
-#ifdef CONFIG_ACPI_BOOT
-       FIX_ACPI_BEGIN,
-       FIX_ACPI_END = FIX_ACPI_BEGIN + FIX_ACPI_PAGES - 1,
-#endif
-#ifdef CONFIG_PCI_MMCONFIG
-       FIX_PCIE_MCFG,
-#endif
-       __end_of_permanent_fixed_addresses,
-       /* temporary boot-time mappings, used before ioremap() is functional */
-#define NR_FIX_BTMAPS  16
-       FIX_BTMAP_END = __end_of_permanent_fixed_addresses,
-       FIX_BTMAP_BEGIN = FIX_BTMAP_END + NR_FIX_BTMAPS - 1,
-       FIX_WP_TEST,
-       __end_of_fixed_addresses
-};
 
 extern void __set_fixmap (enum fixed_addresses idx,
                                        unsigned long phys, pgprot_t flags);
--- /dev/null
+++ linux-2.6.12-xen0-arch/include/asm-i386/mach-default/mach_fixmap.h
@@ -0,0 +1,93 @@
+/*
+ * mach_fixmap.h: mach dependent fixmap split out from fixmap.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1998 Ingo Molnar
+ *
+ * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999
+ */
+
+#ifndef _ASM_MACH_FIXMAP_H
+#define _ASM_MACH_FIXMAP_H
+
+/* used by vmalloc.c, vsyscall.lds.S.
+ *
+ * Leave one empty page between vmalloc'ed areas and
+ * the start of the fixmap.
+ */
+#define __FIXADDR_TOP  0xfffff000
+
+#ifndef __ASSEMBLY__
+#include <linux/kernel.h>
+#include <asm/acpi.h>
+#include <asm/apicdef.h>
+#include <asm/page.h>
+#ifdef CONFIG_HIGHMEM
+#include <linux/threads.h>
+#include <asm/kmap_types.h>
+#endif
+/*
+ * Here we define all the compile-time 'special' virtual
+ * addresses. The point is to have a constant address at
+ * compile time, but to set the physical address only
+ * in the boot process. We allocate these special addresses
+ * from the end of virtual memory (0xfffff000) backwards.
+ * Also this lets us do fail-safe vmalloc(), we
+ * can guarantee that these special addresses and
+ * vmalloc()-ed addresses never overlap.
+ *
+ * these 'compile-time allocated' memory buffers are
+ * fixed-size 4k pages. (or larger if used with an increment
+ * highger than 1) use fixmap_set(idx,phys) to associate
+ * physical memory with fixmap indices.
+ *
+ * TLB entries of such buffers will not be flushed across
+ * task switches.
+ */
+enum fixed_addresses {
+       FIX_HOLE,
+       FIX_VSYSCALL,
+#ifdef CONFIG_X86_LOCAL_APIC
+       FIX_APIC_BASE,  /* local (CPU) APIC) -- required for SMP or not */
+#endif
+#ifdef CONFIG_X86_IO_APIC
+       FIX_IO_APIC_BASE_0,
+       FIX_IO_APIC_BASE_END = FIX_IO_APIC_BASE_0 + MAX_IO_APICS-1,
+#endif
+#ifdef CONFIG_X86_VISWS_APIC
+       FIX_CO_CPU,     /* Cobalt timer */
+       FIX_CO_APIC,    /* Cobalt APIC Redirection Table */ 
+       FIX_LI_PCIA,    /* Lithium PCI Bridge A */
+       FIX_LI_PCIB,    /* Lithium PCI Bridge B */
+#endif
+#ifdef CONFIG_X86_F00F_BUG
+       FIX_F00F_IDT,   /* Virtual mapping for IDT */
+#endif
+#ifdef CONFIG_X86_CYCLONE_TIMER
+       FIX_CYCLONE_TIMER, /*cyclone timer register*/
+#endif 
+#ifdef CONFIG_HIGHMEM
+       FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */
+       FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1,
+#endif
+#ifdef CONFIG_ACPI_BOOT
+       FIX_ACPI_BEGIN,
+       FIX_ACPI_END = FIX_ACPI_BEGIN + FIX_ACPI_PAGES - 1,
+#endif
+#ifdef CONFIG_PCI_MMCONFIG
+       FIX_PCIE_MCFG,
+#endif
+       __end_of_permanent_fixed_addresses,
+       /* temporary boot-time mappings, used before ioremap() is functional */
+#define NR_FIX_BTMAPS  16
+       FIX_BTMAP_END = __end_of_permanent_fixed_addresses,
+       FIX_BTMAP_BEGIN = FIX_BTMAP_END + NR_FIX_BTMAPS - 1,
+       FIX_WP_TEST,
+       __end_of_fixed_addresses
+};
+
+#endif /* !__ASSEMBLY__ */
+#endif
--- linux-2.6.12-xen0/include/asm-i386/mach-xen/mach_fixmap.h   1969-12-31 
16:00:00.000000000 -0800
+++ linux-2.6.12-xen0-arch/include/asm-i386/mach-xen/mach_fixmap.h      
2005-08-01 15:28:08.000000000 -0700
@@ -0,0 +1,103 @@
+/*
+ * mach_fixmap.h: mach dependent fixmap split out from fixmap.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1998 Ingo Molnar
+ *
+ * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999
+ */
+
+#ifndef _ASM_MACH_FIXMAP_H
+#define _ASM_MACH_FIXMAP_H
+
+/* used by vmalloc.c, vsyscall.lds.S.
+ *
+ * Leave one empty page between vmalloc'ed areas and
+ * the start of the fixmap.
+ */
+#define __FIXADDR_TOP  (HYPERVISOR_VIRT_START - 2 * PAGE_SIZE)
+
+#ifndef __ASSEMBLY__
+#include <linux/kernel.h>
+#include <asm/acpi.h>
+#include <asm/apicdef.h>
+#include <asm/page.h>
+#ifdef CONFIG_HIGHMEM
+#include <linux/threads.h>
+#include <asm/kmap_types.h>
+#endif
+#include <asm-xen/gnttab.h>
+/*
+ * Here we define all the compile-time 'special' virtual
+ * addresses. The point is to have a constant address at
+ * compile time, but to set the physical address only
+ * in the boot process. We allocate these special addresses
+ * from the end of virtual memory (0xfffff000) backwards.
+ * Also this lets us do fail-safe vmalloc(), we
+ * can guarantee that these special addresses and
+ * vmalloc()-ed addresses never overlap.
+ *
+ * these 'compile-time allocated' memory buffers are
+ * fixed-size 4k pages. (or larger if used with an increment
+ * highger than 1) use fixmap_set(idx,phys) to associate
+ * physical memory with fixmap indices.
+ *
+ * TLB entries of such buffers will not be flushed across
+ * task switches.
+ */
+enum fixed_addresses {
+       FIX_HOLE,
+       FIX_VSYSCALL,
+#ifdef CONFIG_X86_LOCAL_APIC
+       FIX_APIC_BASE,  /* local (CPU) APIC) -- required for SMP or not */
+#endif
+#ifdef CONFIG_X86_IO_APIC
+       FIX_IO_APIC_BASE_0,
+       FIX_IO_APIC_BASE_END = FIX_IO_APIC_BASE_0 + MAX_IO_APICS-1,
+#endif
+#ifdef CONFIG_X86_VISWS_APIC
+       FIX_CO_CPU,     /* Cobalt timer */
+       FIX_CO_APIC,    /* Cobalt APIC Redirection Table */ 
+       FIX_LI_PCIA,    /* Lithium PCI Bridge A */
+       FIX_LI_PCIB,    /* Lithium PCI Bridge B */
+#endif
+#ifdef CONFIG_X86_F00F_BUG
+       FIX_F00F_IDT,   /* Virtual mapping for IDT */
+#endif
+#ifdef CONFIG_X86_CYCLONE_TIMER
+       FIX_CYCLONE_TIMER, /*cyclone timer register*/
+#endif 
+#ifdef CONFIG_HIGHMEM
+       FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */
+       FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1,
+#endif
+#ifdef CONFIG_ACPI_BOOT
+       FIX_ACPI_BEGIN,
+       FIX_ACPI_END = FIX_ACPI_BEGIN + FIX_ACPI_PAGES - 1,
+       FIX_ACPI_RSDP_PAGE,
+#endif
+#ifdef CONFIG_PCI_MMCONFIG
+       FIX_PCIE_MCFG,
+#endif
+       FIX_SHARED_INFO,
+       FIX_GNTTAB_BEGIN,
+       FIX_GNTTAB_END = FIX_GNTTAB_BEGIN + NR_GRANT_FRAMES - 1,
+#ifdef CONFIG_XEN_PHYSDEV_ACCESS
+#define NR_FIX_ISAMAPS 256
+       FIX_ISAMAP_END,
+       FIX_ISAMAP_BEGIN = FIX_ISAMAP_END + NR_FIX_ISAMAPS - 1,
+#endif
+       __end_of_permanent_fixed_addresses,
+       /* temporary boot-time mappings, used before ioremap() is functional */
+#define NR_FIX_BTMAPS  16
+       FIX_BTMAP_END = __end_of_permanent_fixed_addresses,
+       FIX_BTMAP_BEGIN = FIX_BTMAP_END + NR_FIX_BTMAPS - 1,
+       FIX_WP_TEST,
+       __end_of_fixed_addresses
+};
+
+#endif /* !__ASSEMBLY__ */
+#endif

--


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