45 lines
1.6 KiB
Diff
45 lines
1.6 KiB
Diff
From 15a051ad98309f71989f9bda4b020fff160f4022 Mon Sep 17 00:00:00 2001
|
|
From: David Daney <david.daney@cavium.com>
|
|
Date: Fri, 24 May 2013 20:54:10 +0000
|
|
Subject: [PATCH 2/2] MIPS: Only set cpu_has_mmips if SYS_SUPPORTS_MICROMIPS
|
|
|
|
commit 3ddc14add5e6341cf8ef4058c34c67ba7fd15317 upstream.
|
|
|
|
As Jonas Gorske said in his patch:
|
|
|
|
Disable cpu_has_mmips for everything but SEAD3 and MALTA. Most of
|
|
these platforms are from before the micromips introduction, so they
|
|
are very unlikely to implement it.
|
|
|
|
Reduces an -Os compiled, uncompressed kernel image by 8KiB for
|
|
BCM63XX.
|
|
|
|
This patch taks a different approach than his, we gate the runtime
|
|
test for microMIPS by the config symbol SYS_SUPPORTS_MICROMIPS.
|
|
|
|
Signed-off-by: David Daney <david.daney@cavium.com>
|
|
Cc: Jonas Gorski <jogo@openwrt.org>
|
|
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
|
|
Acked-by: Steven J. Hill <Steven.Hill@imgtec.com>
|
|
Cc: linux-mips@linux-mips.org
|
|
Patchwork: https://patchwork.linux-mips.org/patch/5327/
|
|
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
|
---
|
|
arch/mips/include/asm/cpu-features.h | 6 +++++-
|
|
1 file changed, 5 insertions(+), 1 deletion(-)
|
|
|
|
--- a/arch/mips/include/asm/cpu-features.h
|
|
+++ b/arch/mips/include/asm/cpu-features.h
|
|
@@ -99,7 +99,11 @@
|
|
#define cpu_has_rixi (cpu_data[0].options & MIPS_CPU_RIXI)
|
|
#endif
|
|
#ifndef cpu_has_mmips
|
|
-#define cpu_has_mmips (cpu_data[0].options & MIPS_CPU_MICROMIPS)
|
|
+# ifdef CONFIG_SYS_SUPPORTS_MICROMIPS
|
|
+# define cpu_has_mmips (cpu_data[0].options & MIPS_CPU_MICROMIPS)
|
|
+# else
|
|
+# define cpu_has_mmips 0
|
|
+# endif
|
|
#endif
|
|
#ifndef cpu_has_vtag_icache
|
|
#define cpu_has_vtag_icache (cpu_data[0].icache.flags & MIPS_CACHE_VTAG)
|