@@ -116,11 +116,16 @@
#define MSR_TS_S __MASK(MSR_TS_S_LG) /* Transaction Suspended */
#define MSR_TS_T __MASK(MSR_TS_T_LG) /* Transaction Transactional */
#define MSR_TS_MASK (MSR_TS_T | MSR_TS_S) /* Transaction State bits */
-#define MSR_TM_ACTIVE(x) (((x) & MSR_TS_MASK) != 0) /* Transaction active? */
#define MSR_TM_RESV(x) (((x) & MSR_TS_MASK) == MSR_TS_MASK) /* Reserved */
#define MSR_TM_TRANSACTIONAL(x) (((x) & MSR_TS_MASK) == MSR_TS_T)
#define MSR_TM_SUSPENDED(x) (((x) & MSR_TS_MASK) == MSR_TS_S)
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+#define MSR_TM_ACTIVE(x) (((x) & MSR_TS_MASK) != 0) /* Transaction active? */
+#else
+#define MSR_TM_ACTIVE(x) 0
+#endif
+
#if defined(CONFIG_PPC_BOOK3S_64)
#define MSR_64BIT MSR_SF
@@ -102,24 +102,18 @@ static void check_if_tm_restore_required(struct task_struct *tsk)
}
}
-static inline bool msr_tm_active(unsigned long msr)
-{
- return MSR_TM_ACTIVE(msr);
-}
-
static bool tm_active_with_fp(struct task_struct *tsk)
{
- return msr_tm_active(tsk->thread.regs->msr) &&
+ return MSR_TM_ACTIVE(tsk->thread.regs->msr) &&
(tsk->thread.ckpt_regs.msr & MSR_FP);
}
static bool tm_active_with_altivec(struct task_struct *tsk)
{
- return msr_tm_active(tsk->thread.regs->msr) &&
+ return MSR_TM_ACTIVE(tsk->thread.regs->msr) &&
(tsk->thread.ckpt_regs.msr & MSR_VEC);
}
#else
-static inline bool msr_tm_active(unsigned long msr) { return false; }
static inline void check_if_tm_restore_required(struct task_struct *tsk) { }
static inline bool tm_active_with_fp(struct task_struct *tsk) { return false; }
static inline bool tm_active_with_altivec(struct task_struct *tsk) { return false; }
@@ -247,7 +241,8 @@ void enable_kernel_fp(void)
* giveup as this would save to the 'live' structure not the
* checkpointed structure.
*/
- if(!msr_tm_active(cpumsr) && msr_tm_active(current->thread.regs->msr))
+ if (!MSR_TM_ACTIVE(cpumsr) &&
+ MSR_TM_ACTIVE(current->thread.regs->msr))
return;
__giveup_fpu(current);
}
@@ -311,7 +306,8 @@ void enable_kernel_altivec(void)
* giveup as this would save to the 'live' structure not the
* checkpointed structure.
*/
- if(!msr_tm_active(cpumsr) && msr_tm_active(current->thread.regs->msr))
+ if (!MSR_TM_ACTIVE(cpumsr) &&
+ MSR_TM_ACTIVE(current->thread.regs->msr))
return;
__giveup_altivec(current);
}
@@ -397,7 +393,8 @@ void enable_kernel_vsx(void)
* giveup as this would save to the 'live' structure not the
* checkpointed structure.
*/
- if(!msr_tm_active(cpumsr) && msr_tm_active(current->thread.regs->msr))
+ if (!MSR_TM_ACTIVE(cpumsr) &&
+ MSR_TM_ACTIVE(current->thread.regs->msr))
return;
__giveup_vsx(current);
}
@@ -530,7 +527,7 @@ void restore_math(struct pt_regs *regs)
{
unsigned long msr;
- if (!msr_tm_active(regs->msr) &&
+ if (!MSR_TM_ACTIVE(regs->msr) &&
!current->thread.load_fp && !loadvec(current->thread))
return;
Currently msr_tm_active() is a wrapper around MSR_TM_ACTIVE() if CONFIG_PPC_TRANSACTIONAL_MEM is set, or it is just a function that returns false if CONFIG_PPC_TRANSACTIONAL_MEM is not set. This function is not necessary, since MSR_TM_ACTIVE() just do the same and could be used, removing the dualism and simplifying the code. This patchset remove every instance of msr_tm_active() and replaced it by MSR_TM_ACTIVE(). Signed-off-by: Breno Leitao <leitao@debian.org> --- arch/powerpc/include/asm/reg.h | 7 ++++++- arch/powerpc/kernel/process.c | 21 +++++++++------------ 2 files changed, 15 insertions(+), 13 deletions(-)