Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753193Ab3JWJbl (ORCPT ); Wed, 23 Oct 2013 05:31:41 -0400 Received: from mail.windriver.com ([147.11.1.11]:64126 "EHLO mail.windriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751913Ab3JWJbj (ORCPT ); Wed, 23 Oct 2013 05:31:39 -0400 From: Tiejun Chen To: CC: , , Subject: [v6][PATCH 2/5] powerpc/book3e: store crit/mc/dbg exception thread info Date: Wed, 23 Oct 2013 17:31:22 +0800 Message-ID: <1382520685-11609-3-git-send-email-tiejun.chen@windriver.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1382520685-11609-1-git-send-email-tiejun.chen@windriver.com> References: <1382520685-11609-1-git-send-email-tiejun.chen@windriver.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2255 Lines: 66 We need to store thread info to these exception thread info like something we already did for PPC32. Signed-off-by: Tiejun Chen --- arch/powerpc/kernel/exceptions-64e.S | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S index 68d74b4..a55cf62 100644 --- a/arch/powerpc/kernel/exceptions-64e.S +++ b/arch/powerpc/kernel/exceptions-64e.S @@ -36,6 +36,19 @@ */ #define SPECIAL_EXC_FRAME_SIZE INT_FRAME_SIZE +/* Now we only store something to exception thread info */ +#define EXC_LEVEL_EXCEPTION_PROLOG(type) \ + ld r14,PACAKSAVE(r13); \ + CURRENT_THREAD_INFO(r14, r14); \ + CURRENT_THREAD_INFO(r15, r1); \ + ld r10,TI_FLAGS(r14); \ + std r10,TI_FLAGS(r15); \ + ld r10,TI_PREEMPT(r14); \ + std r10,TI_PREEMPT(r15); \ + ld r10,TI_TASK(r14); \ + std r10,TI_TASK(r15); + + /* Exception prolog code for all exceptions */ #define EXCEPTION_PROLOG(n, intnum, type, addition) \ mtspr SPRN_SPRG_##type##_SCRATCH,r13; /* get spare registers */ \ @@ -69,19 +82,22 @@ #define CRIT_SET_KSTACK \ ld r1,PACA_CRIT_STACK(r13); \ - subi r1,r1,SPECIAL_EXC_FRAME_SIZE; + subi r1,r1,SPECIAL_EXC_FRAME_SIZE; \ + EXC_LEVEL_EXCEPTION_PROLOG(CRIT); #define SPRN_CRIT_SRR0 SPRN_CSRR0 #define SPRN_CRIT_SRR1 SPRN_CSRR1 #define DBG_SET_KSTACK \ ld r1,PACA_DBG_STACK(r13); \ - subi r1,r1,SPECIAL_EXC_FRAME_SIZE; + subi r1,r1,SPECIAL_EXC_FRAME_SIZE; \ + EXC_LEVEL_EXCEPTION_PROLOG(DBG); #define SPRN_DBG_SRR0 SPRN_DSRR0 #define SPRN_DBG_SRR1 SPRN_DSRR1 #define MC_SET_KSTACK \ ld r1,PACA_MC_STACK(r13); \ - subi r1,r1,SPECIAL_EXC_FRAME_SIZE; + subi r1,r1,SPECIAL_EXC_FRAME_SIZE; \ + EXC_LEVEL_EXCEPTION_PROLOG(MC); #define SPRN_MC_SRR0 SPRN_MCSRR0 #define SPRN_MC_SRR1 SPRN_MCSRR1 -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/