diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-14 16:43:24 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-14 16:43:24 -0400 |
commit | a3da5bf84a97d48cfaf66c6842470fc403da5121 (patch) | |
tree | cdf66c0cff8c61eedd60601fc9dffdd1ed39b880 /include/asm-x86/fixmap_32.h | |
parent | 3b23e665b68387f5ee7b21f7b75ceea4d9acae4a (diff) | |
parent | d59fdcf2ac501de99c3dfb452af5e254d4342886 (diff) |
Merge branch 'x86/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (821 commits)
x86: make 64bit hpet_set_mapping to use ioremap too, v2
x86: get x86_phys_bits early
x86: max_low_pfn_mapped fix #4
x86: change _node_to_cpumask_ptr to return const ptr
x86: I/O APIC: remove an IRQ2-mask hack
x86: fix numaq_tsc_disable calling
x86, e820: remove end_user_pfn
x86: max_low_pfn_mapped fix, #3
x86: max_low_pfn_mapped fix, #2
x86: max_low_pfn_mapped fix, #1
x86_64: fix delayed signals
x86: remove conflicting nx6325 and nx6125 quirks
x86: Recover timer_ack lost in the merge of the NMI watchdog
x86: I/O APIC: Never configure IRQ2
x86: L-APIC: Always fully configure IRQ0
x86: L-APIC: Set IRQ0 as edge-triggered
x86: merge dwarf2 headers
x86: use AS_CFI instead of UNWIND_INFO
x86: use ignore macro instead of hash comment
x86: use matching CFI_ENDPROC
...
Diffstat (limited to 'include/asm-x86/fixmap_32.h')
-rw-r--r-- | include/asm-x86/fixmap_32.h | 50 |
1 files changed, 4 insertions, 46 deletions
diff --git a/include/asm-x86/fixmap_32.h b/include/asm-x86/fixmap_32.h index 4b96148e90c1..aae2f0501a40 100644 --- a/include/asm-x86/fixmap_32.h +++ b/include/asm-x86/fixmap_32.h | |||
@@ -79,10 +79,6 @@ enum fixed_addresses { | |||
79 | FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */ | 79 | FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */ |
80 | FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1, | 80 | FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1, |
81 | #endif | 81 | #endif |
82 | #ifdef CONFIG_ACPI | ||
83 | FIX_ACPI_BEGIN, | ||
84 | FIX_ACPI_END = FIX_ACPI_BEGIN + FIX_ACPI_PAGES - 1, | ||
85 | #endif | ||
86 | #ifdef CONFIG_PCI_MMCONFIG | 82 | #ifdef CONFIG_PCI_MMCONFIG |
87 | FIX_PCIE_MCFG, | 83 | FIX_PCIE_MCFG, |
88 | #endif | 84 | #endif |
@@ -103,23 +99,18 @@ enum fixed_addresses { | |||
103 | (__end_of_permanent_fixed_addresses & 511), | 99 | (__end_of_permanent_fixed_addresses & 511), |
104 | FIX_BTMAP_BEGIN = FIX_BTMAP_END + NR_FIX_BTMAPS*FIX_BTMAPS_NESTING - 1, | 100 | FIX_BTMAP_BEGIN = FIX_BTMAP_END + NR_FIX_BTMAPS*FIX_BTMAPS_NESTING - 1, |
105 | FIX_WP_TEST, | 101 | FIX_WP_TEST, |
102 | #ifdef CONFIG_ACPI | ||
103 | FIX_ACPI_BEGIN, | ||
104 | FIX_ACPI_END = FIX_ACPI_BEGIN + FIX_ACPI_PAGES - 1, | ||
105 | #endif | ||
106 | #ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT | 106 | #ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT |
107 | FIX_OHCI1394_BASE, | 107 | FIX_OHCI1394_BASE, |
108 | #endif | 108 | #endif |
109 | __end_of_fixed_addresses | 109 | __end_of_fixed_addresses |
110 | }; | 110 | }; |
111 | 111 | ||
112 | extern void __set_fixmap(enum fixed_addresses idx, | ||
113 | unsigned long phys, pgprot_t flags); | ||
114 | extern void reserve_top_address(unsigned long reserve); | 112 | extern void reserve_top_address(unsigned long reserve); |
115 | 113 | ||
116 | #define set_fixmap(idx, phys) \ | ||
117 | __set_fixmap(idx, phys, PAGE_KERNEL) | ||
118 | /* | ||
119 | * Some hardware wants to get fixmapped without caching. | ||
120 | */ | ||
121 | #define set_fixmap_nocache(idx, phys) \ | ||
122 | __set_fixmap(idx, phys, PAGE_KERNEL_NOCACHE) | ||
123 | 114 | ||
124 | #define FIXADDR_TOP ((unsigned long)__FIXADDR_TOP) | 115 | #define FIXADDR_TOP ((unsigned long)__FIXADDR_TOP) |
125 | 116 | ||
@@ -128,38 +119,5 @@ extern void reserve_top_address(unsigned long reserve); | |||
128 | #define FIXADDR_START (FIXADDR_TOP - __FIXADDR_SIZE) | 119 | #define FIXADDR_START (FIXADDR_TOP - __FIXADDR_SIZE) |
129 | #define FIXADDR_BOOT_START (FIXADDR_TOP - __FIXADDR_BOOT_SIZE) | 120 | #define FIXADDR_BOOT_START (FIXADDR_TOP - __FIXADDR_BOOT_SIZE) |
130 | 121 | ||
131 | #define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT)) | ||
132 | #define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT) | ||
133 | |||
134 | extern void __this_fixmap_does_not_exist(void); | ||
135 | |||
136 | /* | ||
137 | * 'index to address' translation. If anyone tries to use the idx | ||
138 | * directly without tranlation, we catch the bug with a NULL-deference | ||
139 | * kernel oops. Illegal ranges of incoming indices are caught too. | ||
140 | */ | ||
141 | static __always_inline unsigned long fix_to_virt(const unsigned int idx) | ||
142 | { | ||
143 | /* | ||
144 | * this branch gets completely eliminated after inlining, | ||
145 | * except when someone tries to use fixaddr indices in an | ||
146 | * illegal way. (such as mixing up address types or using | ||
147 | * out-of-range indices). | ||
148 | * | ||
149 | * If it doesn't get removed, the linker will complain | ||
150 | * loudly with a reasonably clear error message.. | ||
151 | */ | ||
152 | if (idx >= __end_of_fixed_addresses) | ||
153 | __this_fixmap_does_not_exist(); | ||
154 | |||
155 | return __fix_to_virt(idx); | ||
156 | } | ||
157 | |||
158 | static inline unsigned long virt_to_fix(const unsigned long vaddr) | ||
159 | { | ||
160 | BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START); | ||
161 | return __virt_to_fix(vaddr); | ||
162 | } | ||
163 | |||
164 | #endif /* !__ASSEMBLY__ */ | 122 | #endif /* !__ASSEMBLY__ */ |
165 | #endif | 123 | #endif |