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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-23 21:22:01 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-23 21:22:01 +0400
commit5b34653963de7a6d0d8c783527457d68fddc60fb (patch)
tree1a234741e1823a54cd0514616f783b4cf503a528 /arch/x86/include/asm/dmi.h
parent765426e8ee4c0ab2bc9d44951f4865b8494cdbd0 (diff)
parent5e1b00758b5a8bee9d42515bffdaf305a32f1b04 (diff)
downloadlinux-5b34653963de7a6d0d8c783527457d68fddc60fb.tar.xz
Merge branch 'x86/um-header' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86/um-header' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (26 commits) x86: canonicalize remaining header guards x86: drop double underscores from header guards x86: Fix ASM_X86__ header guards x86, um: get rid of uml-config.h x86, um: get rid of arch/um/Kconfig.arch x86, um: get rid of arch/um/os symlink x86, um: get rid of excessive includes of uml-config.h x86, um: get rid of header symlinks x86, um: merge Kconfig.i386 and Kconfig.x86_64 x86, um: get rid of sysdep symlink x86, um: trim the junk from uml ptrace-*.h x86, um: take vm-flags.h to sysdep x86, um: get rid of uml asm/arch x86, um: get rid of uml highmem.h x86, um: get rid of uml unistd.h x86, um: get rid of system.h -> system.h include x86, um: uml atomic.h is not needed anymore x86, um: untangle uml ldt.h x86, um: get rid of more uml asm/arch uses x86, um: remove dead header (uml module-generic.h; never used these days) ...
Diffstat (limited to 'arch/x86/include/asm/dmi.h')
-rw-r--r--arch/x86/include/asm/dmi.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/x86/include/asm/dmi.h b/arch/x86/include/asm/dmi.h
new file mode 100644
index 000000000000..bc68212c6bc0
--- /dev/null
+++ b/arch/x86/include/asm/dmi.h
@@ -0,0 +1,26 @@
+#ifndef _ASM_X86_DMI_H
+#define _ASM_X86_DMI_H
+
+#include <asm/io.h>
+
+#define DMI_MAX_DATA 2048
+
+extern int dmi_alloc_index;
+extern char dmi_alloc_data[DMI_MAX_DATA];
+
+/* This is so early that there is no good way to allocate dynamic memory.
+ Allocate data in an BSS array. */
+static inline void *dmi_alloc(unsigned len)
+{
+ int idx = dmi_alloc_index;
+ if ((dmi_alloc_index + len) > DMI_MAX_DATA)
+ return NULL;
+ dmi_alloc_index += len;
+ return dmi_alloc_data + idx;
+}
+
+/* Use early IO mappings for DMI because it's initialized early */
+#define dmi_ioremap early_ioremap
+#define dmi_iounmap early_iounmap
+
+#endif /* _ASM_X86_DMI_H */