From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-x241.google.com (mail-pf0-x241.google.com [IPv6:2607:f8b0:400e:c00::241]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3zHMBf4RS2zF0XF for ; Thu, 11 Jan 2018 21:12:42 +1100 (AEDT) Received: by mail-pf0-x241.google.com with SMTP id d23so1311509pfe.9 for ; Thu, 11 Jan 2018 02:12:42 -0800 (PST) From: wei.guo.simon@gmail.com To: linuxppc-dev@lists.ozlabs.org Cc: Paul Mackerras , kvm@vger.kernel.org, kvm-ppc@vger.kernel.org, Simon Guo Subject: [PATCH 14/26] KVM: PPC: Book3S PR: export tm_enable()/tm_disable/tm_abort() APIs Date: Thu, 11 Jan 2018 18:11:27 +0800 Message-Id: <1515665499-31710-15-git-send-email-wei.guo.simon@gmail.com> In-Reply-To: <1515665499-31710-1-git-send-email-wei.guo.simon@gmail.com> References: <1515665499-31710-1-git-send-email-wei.guo.simon@gmail.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Simon Guo This patch exports tm_enable()/tm_disable/tm_abort() APIs, which will be used for PR KVM transaction memory logic. Signed-off-by: Simon Guo Reviewed-by: Paul Mackerras --- arch/powerpc/include/asm/asm-prototypes.h | 3 +++ arch/powerpc/include/asm/tm.h | 2 -- arch/powerpc/kernel/tm.S | 12 ++++++++++++ arch/powerpc/mm/hash_utils_64.c | 1 + 4 files changed, 16 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/include/asm/asm-prototypes.h b/arch/powerpc/include/asm/asm-prototypes.h index 9c3b290..2a0f54e 100644 --- a/arch/powerpc/include/asm/asm-prototypes.h +++ b/arch/powerpc/include/asm/asm-prototypes.h @@ -133,4 +133,7 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4, void _kvmppc_save_tm_pr(struct kvm_vcpu *vcpu, u64 guest_msr); #endif +void tm_enable(void); +void tm_disable(void); +void tm_abort(uint8_t cause); #endif /* _ASM_POWERPC_ASM_PROTOTYPES_H */ diff --git a/arch/powerpc/include/asm/tm.h b/arch/powerpc/include/asm/tm.h index b1658c9..e94f6db 100644 --- a/arch/powerpc/include/asm/tm.h +++ b/arch/powerpc/include/asm/tm.h @@ -10,12 +10,10 @@ #ifndef __ASSEMBLY__ -extern void tm_enable(void); extern void tm_reclaim(struct thread_struct *thread, uint8_t cause); extern void tm_reclaim_current(uint8_t cause); extern void tm_recheckpoint(struct thread_struct *thread); -extern void tm_abort(uint8_t cause); extern void tm_save_sprs(struct thread_struct *thread); extern void tm_restore_sprs(struct thread_struct *thread); diff --git a/arch/powerpc/kernel/tm.S b/arch/powerpc/kernel/tm.S index b92ac8e..ff12f47 100644 --- a/arch/powerpc/kernel/tm.S +++ b/arch/powerpc/kernel/tm.S @@ -12,6 +12,7 @@ #include #include #include +#include #ifdef CONFIG_VSX /* See fpu.S, this is borrowed from there */ @@ -55,6 +56,16 @@ _GLOBAL(tm_enable) or r4, r4, r3 mtmsrd r4 1: blr +EXPORT_SYMBOL_GPL(tm_enable); + +_GLOBAL(tm_disable) + mfmsr r4 + li r3, MSR_TM >> 32 + sldi r3, r3, 32 + andc r4, r4, r3 + mtmsrd r4 + blr +EXPORT_SYMBOL_GPL(tm_disable); _GLOBAL(tm_save_sprs) mfspr r0, SPRN_TFHAR @@ -78,6 +89,7 @@ _GLOBAL(tm_restore_sprs) _GLOBAL(tm_abort) TABORT(R3) blr +EXPORT_SYMBOL_GPL(tm_abort); /* void tm_reclaim(struct thread_struct *thread, * uint8_t cause) diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index 655a5a9..d354de6 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -63,6 +63,7 @@ #include #include #include +#include #ifdef DEBUG #define DBG(fmt...) udbg_printf(fmt) -- 1.8.3.1