From: matthew.leach@arm.com (Matthew Leach)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 09/14] arm64: asm: add CPU_LE & CPU_BE assembler helpers
Date: Fri, 11 Oct 2013 14:52:15 +0100 [thread overview]
Message-ID: <1381499540-28794-10-git-send-email-matthew.leach@arm.com> (raw)
In-Reply-To: <1381499540-28794-1-git-send-email-matthew.leach@arm.com>
Add CPU_LE and CPU_BE to select assembler code in little and big
endian configurations respectively.
Signed-off-by: Matthew Leach <matthew.leach@arm.com>
---
arch/arm64/include/asm/assembler.h | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index 381b935..fd3e392 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -115,6 +115,25 @@ lr .req x30 // link register
.align 7
b \label
.endm
+
+/*
+ * Select code when configured for BE.
+ */
+#ifdef CONFIG_CPU_BIG_ENDIAN
+#define CPU_BE(code...) code
+#else
+#define CPU_BE(code...)
+#endif
+
+/*
+ * Select code when configured for LE.
+ */
+#ifdef CONFIG_CPU_BIG_ENDIAN
+#define CPU_LE(code...)
+#else
+#define CPU_LE(code...) code
+#endif
+
/*
* Define a macro that constructs a 64-bit value by concatenating two
* 32-bit registers. Note that on big endian systems the order of the
--
1.7.9.5
next prev parent reply other threads:[~2013-10-11 13:52 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-11 13:52 [PATCH 00/14] AArch64 BE Support Matthew Leach
2013-10-11 13:52 ` [PATCH 01/14] Docs: arm64: booting: clarify boot requirements Matthew Leach
2013-10-11 13:52 ` [PATCH 02/14] arm64: big-endian: add big-endian support to top-level arch Makefile Matthew Leach
2013-10-11 13:52 ` [PATCH 03/14] arm64: big-endian: fix byteorder include Matthew Leach
2013-10-11 13:52 ` [PATCH 04/14] arm64: ELF: add support for big-endian executables Matthew Leach
2013-10-11 13:52 ` [PATCH 05/14] arm64: setup: report ELF_PLATFORM as the machine for utsname Matthew Leach
2013-10-11 13:52 ` [PATCH 06/14] arm64: compat: add support for big-endian (BE8) AArch32 binaries Matthew Leach
2013-10-11 14:36 ` Mark Rutland
2013-10-11 13:52 ` [PATCH 07/14] arm64: compat: correct register concatenation for syscall wrappers Matthew Leach
2013-10-11 13:52 ` [PATCH 08/14] arm64: big-endian: don't treat code as data when copying sigret code Matthew Leach
2013-10-11 13:52 ` Matthew Leach [this message]
2013-10-11 13:52 ` [PATCH 10/14] arm64: head: create a new function for setting the boot_cpu_mode flag Matthew Leach
2013-10-11 13:52 ` [PATCH 11/14] arm64: big-endian: set correct endianess on kernel entry Matthew Leach
2013-10-15 18:46 ` Christopher Covington
2013-10-24 15:46 ` Catalin Marinas
2013-10-11 13:52 ` [PATCH 12/14] arm64: big-endian: write CPU holding pen address as LE Matthew Leach
2013-10-11 13:52 ` [PATCH 13/14] arm64: kconfig: allow CPU_BIG_ENDIAN to be selected Matthew Leach
2013-10-11 13:52 ` [PATCH 14/14] net: smc91x: dont't use SMC_outw for fixing up halfword-aligned data Matthew Leach
2013-10-11 20:41 ` Nicolas Pitre
2013-10-11 21:56 ` David Miller
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