From: Chen Yu <yu.c.chen@intel.com>
To: Thomas Gleixner <tglx@linutronix.de>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: x86@kernel.org, linux-kernel@vger.kernel.org,
linux-pm@vger.kernel.org, Pavel Machek <pavel@ucw.cz>,
Len Brown <len.brown@intel.com>, Zhimin Gu <kookoo.gu@intel.com>,
Yu Chen <yu.c.chen@intel.com>
Subject: [PATCH 07/12][RFC v3] x86-32, hibernate: Use temp_pgt as the temporary page table
Date: Wed, 19 Sep 2018 15:42:48 +0800 [thread overview]
Message-ID: <22b6bfd23d24405194930baf88f0ec3fe76ba807.1537275915.git.yu.c.chen@intel.com> (raw)
In-Reply-To: <cover.1537275915.git.yu.c.chen@intel.com>
From: Zhimin Gu <kookoo.gu@intel.com>
This is to reuse the temp_pgt for both 32bit and 64bit
system.
No functional change.
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Signed-off-by: Zhimin Gu <kookoo.gu@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
---
arch/x86/power/hibernate_32.c | 2 ++
arch/x86/power/hibernate_asm_32.S | 3 +--
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/x86/power/hibernate_32.c b/arch/x86/power/hibernate_32.c
index f82fbd279d08..a44bdada4e4e 100644
--- a/arch/x86/power/hibernate_32.c
+++ b/arch/x86/power/hibernate_32.c
@@ -156,6 +156,8 @@ asmlinkage int swsusp_arch_resume(void)
if (error)
return error;
+ temp_pgt = __pa(resume_pg_dir);
+
/* We have got enough memory and from now on we cannot recover */
restore_image();
return 0;
diff --git a/arch/x86/power/hibernate_asm_32.S b/arch/x86/power/hibernate_asm_32.S
index 671d38d0d931..f0627cf30a36 100644
--- a/arch/x86/power/hibernate_asm_32.S
+++ b/arch/x86/power/hibernate_asm_32.S
@@ -33,8 +33,7 @@ ENDPROC(swsusp_arch_suspend)
ENTRY(restore_image)
movl mmu_cr4_features, %ecx
- movl resume_pg_dir, %eax
- subl $__PAGE_OFFSET, %eax
+ movl temp_pgt, %eax
movl %eax, %cr3
jecxz 1f # cr4 Pentium and higher, skip if zero
--
2.17.1
next prev parent reply other threads:[~2018-09-19 7:42 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-19 7:37 [PATCH 00/12][RFC v3] Backport several fixes from 64bits to 32bits hibernation Chen Yu
2018-09-19 7:37 ` [PATCH 01/12][RFC v3] x86, hibernate: Fix nosave_regions setup for hibernation Chen Yu
2018-09-19 8:34 ` Rafael J. Wysocki
2018-09-20 22:05 ` Pavel Machek
2018-09-19 7:38 ` [PATCH 02/12][RFC v3] PM / hibernate: Check the success of generating md5 digest before hibernation Chen Yu
2018-09-19 8:36 ` Rafael J. Wysocki
2018-09-20 22:05 ` Pavel Machek
2018-09-19 7:38 ` [PATCH 03/12][RFC v3] x86-32/asm/power: Create stack frames in hibernate_asm_32.S Chen Yu
2018-09-19 8:41 ` Rafael J. Wysocki
2018-09-19 8:54 ` Yu Chen
2018-09-19 7:38 ` [PATCH 04/12][RFC v3] x86, hibernate: Extract the common code of 64/32 bit system Chen Yu
2018-09-19 9:03 ` Rafael J. Wysocki
2018-09-19 10:15 ` Rafael J. Wysocki
2018-09-19 10:34 ` Ingo Molnar
2018-09-19 10:36 ` Rafael J. Wysocki
2018-09-20 22:05 ` Pavel Machek
2018-09-19 7:38 ` [PATCH 05/12][RFC v3] x86-32, hibernate: Enable CONFIG_ARCH_HIBERNATION_HEADER set on 32bit system Chen Yu
2018-09-19 10:31 ` Rafael J. Wysocki
2018-09-19 7:42 ` [PATCH 06/12][RFC v3] x86, hibernate: Rename temp_level4_pgt to temp_pgt Chen Yu
2018-09-20 22:05 ` Pavel Machek
2018-09-19 7:42 ` Chen Yu [this message]
2018-09-20 22:05 ` [PATCH 07/12][RFC v3] x86-32, hibernate: Use temp_pgt as the temporary page table Pavel Machek
2018-09-19 7:42 ` [PATCH 08/12][RFC v3] x86-32, hibernate: Use the page size macro instead of constant value Chen Yu
2018-09-20 22:05 ` Pavel Machek
2018-09-19 7:43 ` [PATCH 09/12][RFC v3] x86-32, hibernate: Switch to original page table after resumed Chen Yu
2018-09-20 22:05 ` Pavel Machek
2018-09-19 7:43 ` [PATCH 10/12][RFC v3] x86-32, hibernate: Switch to relocated restore code during resume on 32bit system Chen Yu
2018-09-20 22:05 ` Pavel Machek
2018-09-19 7:43 ` [PATCH 11/12][RFC v3] x86-32, hibernate: Set up temporary text mapping for " Chen Yu
2018-09-20 22:05 ` Pavel Machek
2018-09-19 7:43 ` [PATCH 12/12][RFC v3] x86-32, hibernate: Adjust in_suspend after resumed on " Chen Yu
2018-09-20 22:06 ` Pavel Machek
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