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authorNicolas Pitre <nico@cam.org>2005-10-29 21:44:56 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-10-29 21:44:56 +0100
commit37d07b72ef58f2d5ec7701ab75084fbeee0e503e (patch)
treeda42fbad5b8ac6c79a258a46aff5f5d338ac138f /include/asm-arm/memory.h
parentf09b99799991c7c3ba441162406247f5df077322 (diff)
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op-kernel-dev-37d07b72ef58f2d5ec7701ab75084fbeee0e503e.tar.gz
[ARM] 3061/1: cleanup the XIP link address mess
Patch from Nicolas Pitre Since vmlinux.lds.S is preprocessed, we can use the defines already present in asm/memory.h (allowed by patch #3060) for the XIP kernel link address instead of relying on a duplicated Makefile hardcoded value, and also get rid of its dependency on awk to handle it at the same time. While at it let's clean XIP stuff even further and make things clearer in head.S with a nice code reduction. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/memory.h')
-rw-r--r--include/asm-arm/memory.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/asm-arm/memory.h b/include/asm-arm/memory.h
index bee10fc..a547ee5 100644
--- a/include/asm-arm/memory.h
+++ b/include/asm-arm/memory.h
@@ -68,6 +68,13 @@
#error Top of user space clashes with start of module space
#endif
+/*
+ * The XIP kernel gets mapped at the bottom of the module vm area.
+ * Since we use sections to map it, this macro replaces the physical address
+ * with its virtual address while keeping offset from the base section.
+ */
+#define XIP_VIRT_ADDR(physaddr) (MODULE_START + ((physaddr) & 0x000fffff))
+
#ifndef __ASSEMBLY__
/*
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