diff options
Diffstat (limited to 'arch/powerpc/kernel/entry_64.S')
| -rw-r--r-- | arch/powerpc/kernel/entry_64.S | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index 256c5bf0adb7..3fe5259e2fea 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -304,7 +304,7 @@ syscall_exit_work: subi r12,r12,TI_FLAGS 4: /* Anything else left to do? */ - SET_DEFAULT_THREAD_PPR(r3, r9) /* Set thread.ppr = 3 */ + SET_DEFAULT_THREAD_PPR(r3, r10) /* Set thread.ppr = 3 */ andi. r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP) beq .ret_from_except_lite @@ -458,7 +458,15 @@ BEGIN_FTR_SECTION */ mfspr r0,SPRN_TAR std r0,THREAD_TAR(r3) -END_FTR_SECTION_IFSET(CPU_FTR_BCTAR) + + /* Event based branch registers */ + mfspr r0, SPRN_BESCR + std r0, THREAD_BESCR(r3) + mfspr r0, SPRN_EBBHR + std r0, THREAD_EBBHR(r3) + mfspr r0, SPRN_EBBRR + std r0, THREAD_EBBRR(r3) +END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S) #endif #ifdef CONFIG_SMP @@ -545,9 +553,17 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEGMENT) #ifdef CONFIG_PPC_BOOK3S_64 BEGIN_FTR_SECTION + /* Event based branch registers */ + ld r0, THREAD_BESCR(r4) + mtspr SPRN_BESCR, r0 + ld r0, THREAD_EBBHR(r4) + mtspr SPRN_EBBHR, r0 + ld r0, THREAD_EBBRR(r4) + mtspr SPRN_EBBRR, r0 + ld r0,THREAD_TAR(r4) mtspr SPRN_TAR,r0 -END_FTR_SECTION_IFSET(CPU_FTR_BCTAR) +END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S) #endif #ifdef CONFIG_ALTIVEC @@ -657,7 +673,7 @@ resume_kernel: /* Clear _TIF_EMULATE_STACK_STORE flag */ lis r11,_TIF_EMULATE_STACK_STORE@h addi r5,r9,TI_FLAGS - ldarx r4,0,r5 +0: ldarx r4,0,r5 andc r4,r4,r11 stdcx. r4,0,r5 bne- 0b |
