diff options
author | Luka Perkov <luka@openwrt.org> | 2015-02-10 22:36:59 +0000 |
---|---|---|
committer | Luka Perkov <luka@openwrt.org> | 2015-02-10 22:36:59 +0000 |
commit | 92f324d33355e26bb119e731197445cf229afbfa (patch) | |
tree | 8e167dcfe6a61e3139453af2aae79057c04a6d5b /target/linux/generic/patches-3.19/304-mips_disable_fpu.patch | |
parent | 7aa5766ad137c10cca1a67672f2d8371141f7841 (diff) | |
download | mtk-20170518-92f324d33355e26bb119e731197445cf229afbfa.zip mtk-20170518-92f324d33355e26bb119e731197445cf229afbfa.tar.gz mtk-20170518-92f324d33355e26bb119e731197445cf229afbfa.tar.bz2 |
kernel: switch 3.19 from -rc5 to release .0
Signed-off-by: Luka Perkov <luka@openwrt.org>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
SVN-Revision: 44381
Diffstat (limited to 'target/linux/generic/patches-3.19/304-mips_disable_fpu.patch')
-rw-r--r-- | target/linux/generic/patches-3.19/304-mips_disable_fpu.patch | 36 |
1 files changed, 5 insertions, 31 deletions
diff --git a/target/linux/generic/patches-3.19/304-mips_disable_fpu.patch b/target/linux/generic/patches-3.19/304-mips_disable_fpu.patch index 9cb4f6a..8413dba 100644 --- a/target/linux/generic/patches-3.19/304-mips_disable_fpu.patch +++ b/target/linux/generic/patches-3.19/304-mips_disable_fpu.patch @@ -1,29 +1,3 @@ -From: Manuel Lauss <manuel.lauss@gmail.com> -Subject: [RFC PATCH v4 2/2] MIPS: make FPU emulator optional -Date: Mon, 7 Apr 2014 12:57:04 +0200 -Message-Id: <1396868224-252888-2-git-send-email-manuel.lauss@gmail.com> - -This small patch makes the MIPS FPU emulator optional. The kernel -kills float-users on systems without a hardware FPU by sending a SIGILL. - -Disabling the emulator shrinks vmlinux by about 54kBytes (32bit, -optimizing for size). - -Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> ---- -v4: rediffed because of patch 1/2, should now work with micromips as well -v3: updated patch description with size savings. -v2: incorporated changes suggested by Jonas Gorski - force the fpu emulator on for micromips: relocating the parts - of the mmips code in the emulator to other areas would be a - much larger change; I went the cheap route instead with this. - - arch/mips/Kbuild | 2 +- - arch/mips/Kconfig | 14 ++++++++++++++ - arch/mips/include/asm/fpu.h | 5 +++-- - arch/mips/include/asm/fpu_emulator.h | 15 +++++++++++++++ - 4 files changed, 33 insertions(+), 3 deletions(-) - --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -2521,6 +2521,20 @@ config MIPS_O32_FP64_SUPPORT @@ -60,12 +34,12 @@ v2: incorporated changes suggested by Jonas Gorski core-y += arch/mips/ --- a/arch/mips/include/asm/fpu.h +++ b/arch/mips/include/asm/fpu.h -@@ -201,8 +201,10 @@ static inline int init_fpu(void) - write_c0_config5(config5); - enable_fpu_hazard(); - } +@@ -210,8 +210,10 @@ static inline int init_fpu(void) + /* Restore FRE */ + write_c0_config5(config5); + enable_fpu_hazard(); - } else -+ } else if (IS_ENABLED(CONFIG_MIPS_FPU_EMULATOR)) ++ } else (IS_ENABLED(CONFIG_MIPS_FPU_EMULATOR)) fpu_emulator_init_fpu(); + else + ret = SIGILL; |