From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751487Ab2J0EW1 (ORCPT ); Sat, 27 Oct 2012 00:22:27 -0400 Received: from mail1.windriver.com ([147.11.146.13]:58534 "EHLO mail1.windriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751162Ab2J0EWZ (ORCPT ); Sat, 27 Oct 2012 00:22:25 -0400 From: Tiejun Chen To: CC: , , Subject: [PATCH 1/1] powerpc/book3e: store critical/machine/debug exception thread info Date: Sat, 27 Oct 2012 12:22:12 +0800 Message-ID: <1351311732-5879-1-git-send-email-tiejun.chen@windriver.com> X-Mailer: git-send-email 1.7.9.5 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 We need to store thread info to these exception thread info like something we already did for PPC32. Signed-off-by: Tiejun Chen --- This patch is followed on my three patches I send recently: [PATCH 1/3] powerpc/book3e: load critical/machine/debug exception stack [PATCH 2/3] powerpc/book3e: support kgdb for kernel space [PATCH 3/3] kgdb/kgdbts: support ppc64 Tiejun arch/powerpc/kernel/exceptions-64e.S | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S index c5564d4..4e7083e 100644 --- a/arch/powerpc/kernel/exceptions-64e.S +++ b/arch/powerpc/kernel/exceptions-64e.S @@ -91,10 +91,28 @@ #define SPRN_GDBELL_SRR0 SPRN_GSRR0 #define SPRN_GDBELL_SRR1 SPRN_GSRR1 +/* Store something to exception thread info */ +#define BOOK3E_STORE_EXC_LEVEL_THEAD_INFO(type) \ + std r14,PACA_EX##type+EX_R14(r13); \ + std r15,PACA_EX##type+EX_R15(r13); \ + ld r14,PACA_EX##type+EX_R1(r13); \ + clrrdi r14,r14,THREAD_SHIFT; \ + clrrdi r15,r1,THREAD_SHIFT; \ + ld r10,TI_FLAGS(r14); \ + std r10,TI_FLAGS(r15); \ + ld r10,TI_PREEMPT(r14); \ + std r10,TI_PREEMPT(r1); \ + ld r10,TI_TASK(r14); \ + std r10,TI_TASK(r1); \ + ld r14,PACA_EX##type+EX_R14(r13); \ + ld r15,PACA_EX##type+EX_R15(r13); \ +1: + #define CRIT_SET_KSTACK \ BOOK3E_LOAD_EXC_LEVEL_STACK(CRIT); \ ld r1,PACA_CRIT_STACK(r13); \ subi r1,r1,SPECIAL_EXC_FRAME_SIZE; + BOOK3E_STORE_EXC_LEVEL_THEAD_INFO(CRIT); #define SPRN_CRIT_SRR0 SPRN_CSRR0 #define SPRN_CRIT_SRR1 SPRN_CSRR1 @@ -102,6 +120,7 @@ BOOK3E_LOAD_EXC_LEVEL_STACK(DBG); \ ld r1,PACA_DBG_STACK(r13); \ subi r1,r1,SPECIAL_EXC_FRAME_SIZE; + BOOK3E_STORE_EXC_LEVEL_THEAD_INFO(DBG); #define SPRN_DBG_SRR0 SPRN_DSRR0 #define SPRN_DBG_SRR1 SPRN_DSRR1 @@ -109,6 +128,7 @@ BOOK3E_LOAD_EXC_LEVEL_STACK(MC); \ ld r1,PACA_MC_STACK(r13); \ subi r1,r1,SPECIAL_EXC_FRAME_SIZE; + BOOK3E_STORE_EXC_LEVEL_THEAD_INFO(MC); #define SPRN_MC_SRR0 SPRN_MCSRR0 #define SPRN_MC_SRR1 SPRN_MCSRR1 -- 1.7.9.5