xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch '4.1-fp' into mips-for-linux-next

Browse Source
This commit is contained in:
Ralf Baechle
2015-04-13 16:01:37 +02:00
parent 3cf2954341 1f3a2c6e22
commit 98b0429b7a
8 changed files with 208 additions and 205 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
arch/mips/include/asm/fpu.h
View File

@@ -48,6 +48,12 @@ enum fpu_mode {
#define FPU_FR_MASK 0x1
};
#define __disable_fpu() \
do { \
clear_c0_status(ST0_CU1); \
disable_fpu_hazard(); \
} while (0)
static inline int __enable_fpu(enum fpu_mode mode)
{
int fr;
@@ -86,7 +92,12 @@ fr_common:
enable_fpu_hazard();
/* check FR has the desired value */
return (!!(read_c0_status() & ST0_FR) == !!fr) ? 0 : SIGFPE;
if (!!(read_c0_status() & ST0_FR) == !!fr)
return 0;
/* unsupported FR value */
__disable_fpu();
return SIGFPE;
default:
BUG();
@@ -95,12 +106,6 @@ fr_common:
return SIGFPE;
}
#define __disable_fpu() \
do { \
clear_c0_status(ST0_CU1); \
disable_fpu_hazard(); \
} while (0)
#define clear_fpu_owner() clear_thread_flag(TIF_USEDFPU)
static inline int __is_fpu_owner(void)
@@ -170,6 +175,7 @@ static inline void lose_fpu(int save)
}
disable_msa();
clear_thread_flag(TIF_USEDMSA);
__disable_fpu();
} else if (is_fpu_owner()) {
if (save)
_save_fp(current);