linux-kernel - [PATCH 22/37] Hibernation: Clean up Kconfig (V2)

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Message-Id: <03f5cd73a5b5b30f6f3bcf8d68b3b79afb8cb880.1201840183.git.len.brown@intel.com>
Date:	Thu, 31 Jan 2008 23:36:53 -0500
From:	Len Brown <lenb@...nel.org>
To:	linux-pm@...ts.linux-foundation.org
Cc:	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	Johannes Berg <johannes@...solutions.net>,
	Pavel Machek <pavel@...e.cz>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Len Brown <len.brown@...el.com>
Subject: [PATCH 22/37] Hibernation: Clean up Kconfig (V2)

From: Johannes Berg <johannes@...solutions.net>

This cleans up the hibernation Kconfig and removes the need to
declare centrally which architectures support hibernation. All
architectures that currently support hibernation are modified
accordingly.

Signed-off-by: Johannes Berg <johannes@...solutions.net>
Acked-by: Paul Mackerras <paulus@...ba.org>
Cc: Pavel Machek <pavel@...e.cz>
Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
Signed-off-by: Len Brown <len.brown@...el.com>
---
 arch/powerpc/Kconfig |   14 ++++++++++++--
 arch/x86/Kconfig     |    4 ++++
 kernel/power/Kconfig |   18 +++---------------
 3 files changed, 19 insertions(+), 17 deletions(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 9c44af3..68f0cf7 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -151,9 +151,19 @@ config DEFAULT_UIMAGE
 config REDBOOT
 	bool
 
-config PPC64_SWSUSP
+config HIBERNATE_32
 	bool
-	depends on PPC64 && (BROKEN || (PPC_PMAC64 && EXPERIMENTAL))
+	depends on (PPC_PMAC && !SMP) || BROKEN
+	default y
+
+config HIBERNATE_64
+	bool
+	depends on BROKEN || (PPC_PMAC64 && EXPERIMENTAL)
+	default y
+
+config ARCH_HIBERNATION_POSSIBLE
+	bool
+	depends on (PPC64 && HIBERNATE_64) || (PPC32 && HIBERNATE_32)
 	default y
 
 config PPC_DCR_NATIVE
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 65b4491..9c511dd 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -109,6 +109,10 @@ config ARCH_SUPPORTS_OPROFILE
 
 select HAVE_KVM
 
+config ARCH_HIBERNATION_POSSIBLE
+	def_bool y
+	depends on !SMP || !X86_VOYAGER
+
 config ZONE_DMA32
 	bool
 	default X86_64
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index 06a08f7..fd76d54 100644
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -84,7 +84,8 @@ config PM_TRACE_RTC
 
 config PM_SLEEP_SMP
 	bool
-	depends on SUSPEND_SMP_POSSIBLE || HIBERNATION_SMP_POSSIBLE
+	depends on SMP
+	depends on SUSPEND_SMP_POSSIBLE || ARCH_HIBERNATION_POSSIBLE
 	depends on PM_SLEEP
 	select HOTPLUG_CPU
 	default y
@@ -118,22 +119,9 @@ config SUSPEND
 	  powered and thus its contents are preserved, such as the
 	  suspend-to-RAM state (i.e. the ACPI S3 state).
 
-config HIBERNATION_UP_POSSIBLE
-	bool
-	depends on X86 || PPC64_SWSUSP || PPC32
-	depends on !SMP
-	default y
-
-config HIBERNATION_SMP_POSSIBLE
-	bool
-	depends on (X86 && !X86_VOYAGER) || PPC64_SWSUSP
-	depends on SMP
-	default y
-
 config HIBERNATION
 	bool "Hibernation (aka 'suspend to disk')"
-	depends on PM && SWAP
-	depends on HIBERNATION_UP_POSSIBLE || HIBERNATION_SMP_POSSIBLE
+	depends on PM && SWAP && ARCH_HIBERNATION_POSSIBLE
 	---help---
 	  Enable the suspend to disk (STD) functionality, which is usually
 	  called "hibernation" in user interfaces.  STD checkpoints the
-- 
1.5.4.rc5.16.gc0279

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