aboutsummaryrefslogtreecommitdiffstats
path: root/arch/powerpc/kernel/process.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/kernel/process.c')
-rw-r--r--arch/powerpc/kernel/process.c51
1 files changed, 5 insertions, 46 deletions
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index f0fbbf6a6a1f..7a84c9f1778e 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -101,21 +101,8 @@ static void check_if_tm_restore_required(struct task_struct *tsk)
}
}
-static bool tm_active_with_fp(struct task_struct *tsk)
-{
- 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) &&
- (tsk->thread.ckpt_regs.msr & MSR_VEC);
-}
#else
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; }
#endif /* CONFIG_PPC_TRANSACTIONAL_MEM */
bool strict_msr_control;
@@ -252,7 +239,7 @@ EXPORT_SYMBOL(enable_kernel_fp);
static int restore_fp(struct task_struct *tsk)
{
- if (tsk->thread.load_fp || tm_active_with_fp(tsk)) {
+ if (tsk->thread.load_fp) {
load_fp_state(&current->thread.fp_state);
current->thread.load_fp++;
return 1;
@@ -334,8 +321,7 @@ EXPORT_SYMBOL_GPL(flush_altivec_to_thread);
static int restore_altivec(struct task_struct *tsk)
{
- if (cpu_has_feature(CPU_FTR_ALTIVEC) &&
- (tsk->thread.load_vec || tm_active_with_altivec(tsk))) {
+ if (cpu_has_feature(CPU_FTR_ALTIVEC) && (tsk->thread.load_vec)) {
load_vr_state(&tsk->thread.vr_state);
tsk->thread.used_vr = 1;
tsk->thread.load_vec++;
@@ -497,13 +483,14 @@ void giveup_all(struct task_struct *tsk)
if (!tsk->thread.regs)
return;
+ check_if_tm_restore_required(tsk);
+
usermsr = tsk->thread.regs->msr;
if ((usermsr & msr_all_available) == 0)
return;
msr_check_and_set(msr_all_available);
- check_if_tm_restore_required(tsk);
WARN_ON((usermsr & MSR_VSX) && !((usermsr & MSR_FP) && (usermsr & MSR_VEC)));
@@ -639,7 +626,7 @@ void do_break (struct pt_regs *regs, unsigned long address,
hw_breakpoint_disable();
/* Deliver the signal to userspace */
- force_sig_fault(SIGTRAP, TRAP_HWBKPT, (void __user *)address, current);
+ force_sig_fault(SIGTRAP, TRAP_HWBKPT, (void __user *)address);
}
#endif /* CONFIG_PPC_ADV_DEBUG_REGS */
@@ -793,34 +780,6 @@ static inline int set_dabr(struct arch_hw_breakpoint *brk)
return __set_dabr(dabr, dabrx);
}
-int set_dawr(struct arch_hw_breakpoint *brk)
-{
- unsigned long dawr, dawrx, mrd;
-
- dawr = brk->address;
-
- dawrx = (brk->type & (HW_BRK_TYPE_READ | HW_BRK_TYPE_WRITE)) \
- << (63 - 58); //* read/write bits */
- dawrx |= ((brk->type & (HW_BRK_TYPE_TRANSLATE)) >> 2) \
- << (63 - 59); //* translate */
- dawrx |= (brk->type & (HW_BRK_TYPE_PRIV_ALL)) \
- >> 3; //* PRIM bits */
- /* dawr length is stored in field MDR bits 48:53. Matches range in
- doublewords (64 bits) baised by -1 eg. 0b000000=1DW and
- 0b111111=64DW.
- brk->len is in bytes.
- This aligns up to double word size, shifts and does the bias.
- */
- mrd = ((brk->len + 7) >> 3) - 1;
- dawrx |= (mrd & 0x3f) << (63 - 53);
-
- if (ppc_md.set_dawr)
- return ppc_md.set_dawr(dawr, dawrx);
- mtspr(SPRN_DAWR, dawr);
- mtspr(SPRN_DAWRX, dawrx);
- return 0;
-}
-
void __set_breakpoint(struct arch_hw_breakpoint *brk)
{
memcpy(this_cpu_ptr(&current_brk), brk, sizeof(*brk));