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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2015-06-19 16:07:07 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-06-19 16:07:07 +0200 |
| commit | c0b59fafe31bf91f589736be304d739b13952fdd (patch) | |
| tree | 0088a41c6b68132739294643be06734e3af67677 /arch/powerpc/kernel/entry_64.S | |
| parent | MAINTAINERS: clarify drivers/crypto/nx/ file ownership (diff) | |
| parent | bus: mvebu-mbus: add mv_mbus_dram_info_nooverlap() (diff) | |
| download | linux-c0b59fafe31bf91f589736be304d739b13952fdd.tar.xz linux-c0b59fafe31bf91f589736be304d739b13952fdd.zip | |
Merge branch 'mvebu/drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Merge the mvebu/drivers branch of the arm-soc tree which contains
just a single patch bfa1ce5f38938cc9e6c7f2d1011f88eba2b9e2b2 ("bus:
mvebu-mbus: add mv_mbus_dram_info_nooverlap()") that happens to be
a prerequisite of the new marvell/cesa crypto driver.
Diffstat (limited to 'arch/powerpc/kernel/entry_64.S')
| -rw-r--r-- | arch/powerpc/kernel/entry_64.S | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index d180caf2d6de..8ca9434c40e6 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -34,6 +34,7 @@ #include <asm/ftrace.h> #include <asm/hw_irq.h> #include <asm/context_tracking.h> +#include <asm/tm.h> /* * System calls. @@ -145,6 +146,24 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR) andi. r11,r10,_TIF_SYSCALL_DOTRACE bne syscall_dotrace .Lsyscall_dotrace_cont: +#ifdef CONFIG_PPC_TRANSACTIONAL_MEM +BEGIN_FTR_SECTION + b 1f +END_FTR_SECTION_IFCLR(CPU_FTR_TM) + extrdi. r11, r12, 1, (63-MSR_TS_T_LG) /* transaction active? */ + beq+ 1f + + /* Doom the transaction and don't perform the syscall: */ + mfmsr r11 + li r12, 1 + rldimi r11, r12, MSR_TM_LG, 63-MSR_TM_LG + mtmsrd r11, 0 + li r11, (TM_CAUSE_SYSCALL|TM_CAUSE_PERSISTENT) + TABORT(R11) + + b .Lsyscall_exit +1: +#endif cmpldi 0,r0,NR_syscalls bge- syscall_enosys @@ -356,6 +375,11 @@ _GLOBAL(ppc64_swapcontext) bl sys_swapcontext b .Lsyscall_exit +_GLOBAL(ppc_switch_endian) + bl save_nvgprs + bl sys_switch_endian + b .Lsyscall_exit + _GLOBAL(ret_from_fork) bl schedule_tail REST_NVGPRS(r1) |