diff options
Diffstat (limited to 'arch/sh/include/asm/processor_64.h')
| -rw-r--r-- | arch/sh/include/asm/processor_64.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/sh/include/asm/processor_64.h b/arch/sh/include/asm/processor_64.h index 1cc7d31..eedd4f6 100644 --- a/arch/sh/include/asm/processor_64.h +++ b/arch/sh/include/asm/processor_64.h @@ -126,6 +126,16 @@ struct thread_struct { /* floating point info */ union thread_xstate *xstate; + + /* + * fpu_counter contains the number of consecutive context switches + * that the FPU is used. If this is over a threshold, the lazy fpu + * saving becomes unlazy to save the trap. This is an unsigned char + * so that after 256 times the counter wraps and the behavior turns + * lazy again; this to deal with bursty apps that only use FPU for + * a short time + */ + unsigned char fpu_counter; }; #define INIT_MMAP \ |
