Dave Martin a61a41a018 ARM: 7510/1: opcodes: Add helpers for emitting custom opcodes ... This patch adds some __inst_() macros for injecting custom opcodes in assembler (both inline and in .S files). They should make it easier and cleaner to get things right in little-/big- endian/ARM/Thumb-2 kernels without a lot of #ifdefs. This pure-preprocessor approach is preferred over the alternative method of wedging extra assembler directives into the assembler input using top-level asm() blocks, since there is no way to guarantee that the compiler won't reorder those with respect to each other or with respect to non-toplevel asm() blocks, unless -fno-toplevel-reorder is passed (which is in itself somewhat undesirable because it defeats some potential optimisations). Currently <asm/unified.h> _does_ silently rely on the compiler not reordering at the top level, but it seems better to avoid adding extra code which depends on this if the same result can be achieved in another way. Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>		2012-09-15 21:25:57 +01:00
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asm	ARM: 7510/1: opcodes: Add helpers for emitting custom opcodes	2012-09-15 21:25:57 +01:00