linux-kernel - Re: [PATCH 3/3] ARM: omap2: move platform-specific asm-offset.h to arch/arm/mach-omap2

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Message-ID: <6308904e-443a-46ff-9633-2ccb3b03bef9@ti.com>
Date:   Tue, 9 Apr 2019 10:28:36 +0530
From:   Keerthy <j-keerthy@...com>
To:     Tony Lindgren <tony@...mide.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>
CC:     <arm@...nel.org>, Olof Johansson <olof@...om.net>,
        Arnd Bergmann <arnd@...db.de>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-omap@...r.kernel.org>, Russell King <linux@...linux.org.uk>,
        <linux-kernel@...r.kernel.org>, Dave Gerlach <d-gerlach@...com>
Subject: Re: [PATCH 3/3] ARM: omap2: move platform-specific asm-offset.h to
 arch/arm/mach-omap2



On 08/04/19 9:48 PM, Tony Lindgren wrote:
> Hi,
> 
> * Masahiro Yamada <yamada.masahiro@...ionext.com> [190408 07:56]:
>> <generated/ti-pm-asm-offsets.h> is only generated and included
>> by arch/arm/mach-omap2/, so it does not need to reside in the
>> globally visible include/generated/.
>>
>> I moved and renamed it to arch/arm/mach-omap2/pm-asm-offsets.h
>> since the prefix 'omap2-' is just redundant in mach-omap2/.
>>
>> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
>> ---
>>
>> Can this be applied to ARM-SOC tree in a series?
>> (with Ack from the platform sub-maintainer.)
>>
>> ti-pm-asm-offsets.h does not need to reside in include/generated/,
>> but you may ask "Why must it get out of include/generated/?"
>>
>> My main motivation is to avoid a race condition in the currently
>> proposed patch:
>>
>> https://lore.kernel.org/patchwork/patch/1052763/
>>
>> This patch tries to embed some build artifacts into the kernel.
>>
>> If arch/arm/mach-omap2/ and kernel/ are built at the same time,
>> it may embed a truncated file.
> 
> Looks like a nice improvment to me, adding Keerthy and Dave to Cc.
> 
> Keerthy and Dave, can you please test this series with am3 and am4
> PM code?

Tested for Deep Sleep0 on AM33xx Beaglebone-black.
Tested for Deep Sleep0 on AM437x-gp-evm.

Applied this on top of Tony's for-next with the gpio patch
required for RTC+DDR mode on am437x-gp-evm.

Tested-by: Keerthy <j-keerthy@...com>

> 
> Regards,
> 
> Tony
> 
>>   arch/arm/mach-omap2/.gitignore  | 1 +
>>   arch/arm/mach-omap2/Makefile    | 5 +++--
>>   arch/arm/mach-omap2/sleep33xx.S | 2 +-
>>   arch/arm/mach-omap2/sleep43xx.S | 2 +-
>>   4 files changed, 6 insertions(+), 4 deletions(-)
>>   create mode 100644 arch/arm/mach-omap2/.gitignore
>>
>> diff --git a/arch/arm/mach-omap2/.gitignore b/arch/arm/mach-omap2/.gitignore
>> new file mode 100644
>> index 000000000000..79a8d6ea7152
>> --- /dev/null
>> +++ b/arch/arm/mach-omap2/.gitignore
>> @@ -0,0 +1 @@
>> +pm-asm-offsets.h
>> diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
>> index 85d1b13c9215..26baeb6477af 100644
>> --- a/arch/arm/mach-omap2/Makefile
>> +++ b/arch/arm/mach-omap2/Makefile
>> @@ -236,9 +236,10 @@ obj-y					+= omap_phy_internal.o
>>   
>>   obj-$(CONFIG_MACH_OMAP2_TUSB6010)	+= usb-tusb6010.o
>>   
>> -include/generated/ti-pm-asm-offsets.h: arch/arm/mach-omap2/pm-asm-offsets.s FORCE
>> +$(obj)/pm-asm-offsets.h: $(obj)/pm-asm-offsets.s FORCE
>>   	$(call filechk,offsets,__TI_PM_ASM_OFFSETS_H__)
>>   
>> -$(obj)/sleep33xx.o $(obj)/sleep43xx.o: include/generated/ti-pm-asm-offsets.h
>> +$(obj)/sleep33xx.o $(obj)/sleep43xx.o: $(obj)/pm-asm-offsets.h
>>   
>>   targets += pm-asm-offsets.s
>> +clean-files += pm-asm-offsets.h
>> diff --git a/arch/arm/mach-omap2/sleep33xx.S b/arch/arm/mach-omap2/sleep33xx.S
>> index 47a816468cdb..a003769121aa 100644
>> --- a/arch/arm/mach-omap2/sleep33xx.S
>> +++ b/arch/arm/mach-omap2/sleep33xx.S
>> @@ -6,7 +6,6 @@
>>    *	Dave Gerlach, Vaibhav Bedia
>>    */
>>   
>> -#include <generated/ti-pm-asm-offsets.h>
>>   #include <linux/linkage.h>
>>   #include <linux/platform_data/pm33xx.h>
>>   #include <linux/ti-emif-sram.h>
>> @@ -15,6 +14,7 @@
>>   
>>   #include "iomap.h"
>>   #include "cm33xx.h"
>> +#include "pm-asm-offsets.h"
>>   
>>   #define AM33XX_CM_CLKCTRL_MODULESTATE_DISABLED			0x00030000
>>   #define AM33XX_CM_CLKCTRL_MODULEMODE_DISABLE			0x0003
>> diff --git a/arch/arm/mach-omap2/sleep43xx.S b/arch/arm/mach-omap2/sleep43xx.S
>> index 5b9343b58fc7..aa288f361c5e 100644
>> --- a/arch/arm/mach-omap2/sleep43xx.S
>> +++ b/arch/arm/mach-omap2/sleep43xx.S
>> @@ -6,7 +6,6 @@
>>    *	Dave Gerlach, Vaibhav Bedia
>>    */
>>   
>> -#include <generated/ti-pm-asm-offsets.h>
>>   #include <linux/linkage.h>
>>   #include <linux/ti-emif-sram.h>
>>   #include <linux/platform_data/pm33xx.h>
>> @@ -19,6 +18,7 @@
>>   #include "iomap.h"
>>   #include "omap-secure.h"
>>   #include "omap44xx.h"
>> +#include "pm-asm-offsets.h"
>>   #include "prm33xx.h"
>>   #include "prcm43xx.h"
>>   
>> -- 
>> 2.17.1
>>