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From: Cyril Bur <cyrilbur@gmail.com>
To: linuxppc-dev@lists.ozlabs.org, wei.guo.simon@gmail.com
Cc: anton@samba.org, mikey@neuling.org
Subject: [PATCH v2 03/20] powerpc: Add check_if_tm_restore_required() to giveup_all()
Date: Fri, 12 Aug 2016 09:28:02 +1000	[thread overview]
Message-ID: <20160811232819.11453-4-cyrilbur@gmail.com> (raw)
In-Reply-To: <20160811232819.11453-1-cyrilbur@gmail.com>

giveup_all() causes FPU/VMX/VSX facilitities to be disabled in a
threads MSR. If this thread was transactional this should be recorded
as reclaiming/recheckpointing code will need to know.

Fixes: c208505 ("powerpc: create giveup_all()")
Signed-off-by: Cyril Bur <cyrilbur@gmail.com>
---
 arch/powerpc/kernel/process.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index a5cdef9..79f0615 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -439,6 +439,7 @@ void giveup_all(struct task_struct *tsk)
 		return;
 
 	msr_check_and_set(msr_all_available);
+	check_if_tm_restore_required(tsk);
 
 #ifdef CONFIG_PPC_FPU
 	if (usermsr & MSR_FP)
-- 
2.9.2

  parent reply	other threads:[~2016-08-11 23:29 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-11 23:27 [PATCH v2 00/20] Consistent TM structures Cyril Bur
2016-08-11 23:28 ` [PATCH v2 01/20] selftests/powerpc: Compile selftests against headers without AT_HWCAP2 Cyril Bur
2016-08-11 23:28 ` [PATCH v2 02/20] powerpc: Always restore FPU/VEC/VSX if hardware transactional memory in use Cyril Bur
2016-08-12  3:01   ` kbuild test robot
2016-08-11 23:28 ` Cyril Bur [this message]
2016-08-11 23:28 ` [PATCH v2 04/20] powerpc: Return the new MSR from msr_check_and_set() Cyril Bur
2016-08-11 23:28 ` [PATCH v2 05/20] powerpc: Never giveup a reclaimed thread when enabling kernel {fp, altivec, vsx} Cyril Bur
2016-08-11 23:28 ` [PATCH v2 06/20] selftests/powerpc: Check for VSX preservation across userspace preemption Cyril Bur
2016-08-11 23:28 ` [PATCH v2 07/20] selftests/powerpc: Rework FPU stack placement macros and move to header file Cyril Bur
2016-08-11 23:28 ` [PATCH v2 08/20] selftests/powerpc: Move VMX stack frame macros " Cyril Bur
2016-08-11 23:28 ` [PATCH v2 09/20] selftests/powerpc: Introduce GPR asm helper " Cyril Bur
2016-08-11 23:28 ` [PATCH v2 10/20] selftests/powerpc: Add transactional memory defines Cyril Bur
2016-08-11 23:28 ` [PATCH v2 11/20] selftests/powerpc: Allow tests to extend their kill timeout Cyril Bur
2016-08-11 23:28 ` [PATCH v2 12/20] selftests/powerpc: Add TM tcheck helpers in C Cyril Bur
2016-08-11 23:28 ` [PATCH v2 13/20] selftests/powerpc: Check that signals always get delivered Cyril Bur
2016-08-11 23:28 ` [PATCH v2 14/20] selftests/powerpc: Add checks for transactional GPRs in signal contexts Cyril Bur
2016-08-11 23:28 ` [PATCH v2 15/20] selftests/powerpc: Add checks for transactional FPUs " Cyril Bur
2016-08-11 23:28 ` [PATCH v2 16/20] selftests/powerpc: Add checks for transactional VMXs " Cyril Bur
2016-08-11 23:28 ` [PATCH v2 17/20] selftests/powerpc: Add checks for transactional VSXs " Cyril Bur
2016-08-11 23:28 ` [PATCH v2 18/20] powerpc: tm: Always use fp_state and vr_state to store live registers Cyril Bur
2016-08-14  1:56   ` Simon Guo
2016-08-15  7:25     ` Cyril Bur
2016-08-15  9:42       ` Simon Guo
2016-08-15 23:03         ` Cyril Bur
2016-08-11 23:28 ` [PATCH v2 19/20] powerpc: tm: Rename transct_(*) to ck(\1)_state Cyril Bur
2016-08-11 23:28 ` [PATCH v2 20/20] powerpc: Remove do_load_up_transact_{fpu,altivec} Cyril Bur

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