Paul Burton 12060666f5 MIPS: Optimise non-EVA kernel user memory accesses ... Commits ac1d8590d3 (MIPS: asm: uaccess: Use EVA instructions wrappers), 05c6516005 (MIPS: asm: uaccess: Add EVA support to copy_{in, to,from}_user) & e3a9b07a9c (MIPS: asm: uaccess: Add EVA support for str*_user operations) added checks to various user memory access functions & macros in order to determine whether to perform standard memory accesses or their EVA userspace equivalents. In kernels built without support for EVA these checks are entirely redundant. Avoid emitting them & allow the compiler to optimise out the EVA userspace code in such kernels by checking config_enabled(CONFIG_EVA). This reduces the size of a malta_defconfig kernel built using GCC 4.9.2 by approximately 33KB (from 5995072 to 5962304 bytes). Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/10165/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>		2015-06-21 21:54:20 +02:00
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asm	MIPS: Optimise non-EVA kernel user memory accesses	2015-06-21 21:54:20 +02:00
uapi/asm	MIPS: KVM: Expose MSA registers	2015-03-27 21:25:21 +00:00