* [PATCH CFT] ARM:MSM: Enable ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR default
@ 2013-12-09 9:40 ` panchaxari
0 siblings, 0 replies; 5+ messages in thread
From: panchaxari @ 2013-12-09 9:40 UTC (permalink / raw)
To: linus.walleij
Cc: patches, linaro-kernel, panchaxari.prasannamurthy, David Brown,
Daniel Walker, Bryan Huntsman, Russell King, linux-arm-msm,
linux-arm-kernel, linux-kernel
ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR have been enabled as default configs
to MSM platform
Introduction of PHYS_VIRT config as default would enable phy-to-virt and
virt-to-phy translation function at boot and module loading time
and enforce dynamic reallocation of memory. AUTO_ZRELADDR config would
enable calculation of kernel load address at run time.
PHYS_VIRT config is mutually exclusive to XIP_KERNEL, XIP_KERNEL is used in
systems with NOR flash devices, and ZRELADDR config is mutually exclusive
to ZBOOT_ROM.
CFT::Call For Testing
Requesting maintainers of MSM platforms to evaluate the changes on the board
and comment, as I dont have the board for testing and also requesting an ACK
Signed-off-by: panchaxari <panchaxari.prasannamurthy@linaro.org>
Cc: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
---
ARCH_MSM supports for Qualcomm MSM/QSD based systems. This runs on the apps
processor of the MSM/QSD and depends on a shared memory interface to the modem
processor which runs the baseband stack and controls some vital subsystems
like clock and power control.
Snapdragon is based on ARMv7 instruction set. And supports Random memory devices
like DDR1, LPDDR2 and LPDDR3. And storage memory devices like NAND, eMMC.
Below lkml link is a quoting by Russell which clears the concept of PHYS_VIRT
and ZRELADDR
---------------------------------------------------
https://lkml.org/lkml/2011/10/14/434
-------------------------------------------------
---
arch/arm/Kconfig | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 13621ed..3b77864 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -638,6 +638,8 @@ config ARCH_PXA
config ARCH_MSM
bool "Qualcomm MSM"
select ARCH_REQUIRE_GPIOLIB
+ select ARM_PATCH_PHYS_VIRT
+ select AUTO_ZRELADDR
select CLKSRC_OF if OF
select COMMON_CLK
select GENERIC_CLOCKEVENTS
--
1.7.10.4
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH CFT] ARM:MSM: Enable ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR default
@ 2013-12-09 9:40 ` panchaxari
0 siblings, 0 replies; 5+ messages in thread
From: panchaxari @ 2013-12-09 9:40 UTC (permalink / raw)
To: linux-arm-kernel
ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR have been enabled as default configs
to MSM platform
Introduction of PHYS_VIRT config as default would enable phy-to-virt and
virt-to-phy translation function at boot and module loading time
and enforce dynamic reallocation of memory. AUTO_ZRELADDR config would
enable calculation of kernel load address at run time.
PHYS_VIRT config is mutually exclusive to XIP_KERNEL, XIP_KERNEL is used in
systems with NOR flash devices, and ZRELADDR config is mutually exclusive
to ZBOOT_ROM.
CFT::Call For Testing
Requesting maintainers of MSM platforms to evaluate the changes on the board
and comment, as I dont have the board for testing and also requesting an ACK
Signed-off-by: panchaxari <panchaxari.prasannamurthy@linaro.org>
Cc: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-arm-msm at vger.kernel.org
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-kernel at vger.kernel.org
---
ARCH_MSM supports for Qualcomm MSM/QSD based systems. This runs on the apps
processor of the MSM/QSD and depends on a shared memory interface to the modem
processor which runs the baseband stack and controls some vital subsystems
like clock and power control.
Snapdragon is based on ARMv7 instruction set. And supports Random memory devices
like DDR1, LPDDR2 and LPDDR3. And storage memory devices like NAND, eMMC.
Below lkml link is a quoting by Russell which clears the concept of PHYS_VIRT
and ZRELADDR
---------------------------------------------------
https://lkml.org/lkml/2011/10/14/434
-------------------------------------------------
---
arch/arm/Kconfig | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 13621ed..3b77864 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -638,6 +638,8 @@ config ARCH_PXA
config ARCH_MSM
bool "Qualcomm MSM"
select ARCH_REQUIRE_GPIOLIB
+ select ARM_PATCH_PHYS_VIRT
+ select AUTO_ZRELADDR
select CLKSRC_OF if OF
select COMMON_CLK
select GENERIC_CLOCKEVENTS
--
1.7.10.4
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH CFT] ARM:MSM: Enable ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR default
2013-12-09 9:40 ` panchaxari
(?)
@ 2013-12-09 17:57 ` Courtney Cavin
-1 siblings, 0 replies; 5+ messages in thread
From: Courtney Cavin @ 2013-12-09 17:57 UTC (permalink / raw)
To: panchaxari
Cc: linus.walleij, patches, linaro-kernel, David Brown,
Daniel Walker, Bryan Huntsman, Russell King, linux-arm-msm,
linux-arm-kernel, linux-kernel
On Mon, Dec 09, 2013 at 10:40:50AM +0100, panchaxari wrote:
> ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR have been enabled as default configs
> to MSM platform
>
> Introduction of PHYS_VIRT config as default would enable phy-to-virt and
> virt-to-phy translation function at boot and module loading time
> and enforce dynamic reallocation of memory. AUTO_ZRELADDR config would
> enable calculation of kernel load address at run time.
>
> PHYS_VIRT config is mutually exclusive to XIP_KERNEL, XIP_KERNEL is used in
> systems with NOR flash devices, and ZRELADDR config is mutually exclusive
> to ZBOOT_ROM.
>
> CFT::Call For Testing
>
> Requesting maintainers of MSM platforms to evaluate the changes on the board
> and comment, as I dont have the board for testing and also requesting an ACK
>
> Signed-off-by: panchaxari <panchaxari.prasannamurthy@linaro.org>
> Cc: David Brown <davidb@codeaurora.org>
> Cc: Daniel Walker <dwalker@fifo99.com>
> Cc: Bryan Huntsman <bryanh@codeaurora.org>
> Cc: Russell King <linux@arm.linux.org.uk>
> Cc: Linus Walleij <linus.walleij@linaro.org>
> Cc: linux-arm-msm@vger.kernel.org
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-kernel@vger.kernel.org
We run with these enabled on our development boards already.
Tested-by: Courtney Cavin <courtney.cavin@sonymobile.com>
-Courtney
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH CFT] ARM:MSM: Enable ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR default
@ 2013-12-09 17:57 ` Courtney Cavin
0 siblings, 0 replies; 5+ messages in thread
From: Courtney Cavin @ 2013-12-09 17:57 UTC (permalink / raw)
To: linux-arm-kernel
On Mon, Dec 09, 2013 at 10:40:50AM +0100, panchaxari wrote:
> ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR have been enabled as default configs
> to MSM platform
>
> Introduction of PHYS_VIRT config as default would enable phy-to-virt and
> virt-to-phy translation function at boot and module loading time
> and enforce dynamic reallocation of memory. AUTO_ZRELADDR config would
> enable calculation of kernel load address at run time.
>
> PHYS_VIRT config is mutually exclusive to XIP_KERNEL, XIP_KERNEL is used in
> systems with NOR flash devices, and ZRELADDR config is mutually exclusive
> to ZBOOT_ROM.
>
> CFT::Call For Testing
>
> Requesting maintainers of MSM platforms to evaluate the changes on the board
> and comment, as I dont have the board for testing and also requesting an ACK
>
> Signed-off-by: panchaxari <panchaxari.prasannamurthy@linaro.org>
> Cc: David Brown <davidb@codeaurora.org>
> Cc: Daniel Walker <dwalker@fifo99.com>
> Cc: Bryan Huntsman <bryanh@codeaurora.org>
> Cc: Russell King <linux@arm.linux.org.uk>
> Cc: Linus Walleij <linus.walleij@linaro.org>
> Cc: linux-arm-msm at vger.kernel.org
> Cc: linux-arm-kernel at lists.infradead.org
> Cc: linux-kernel at vger.kernel.org
We run with these enabled on our development boards already.
Tested-by: Courtney Cavin <courtney.cavin@sonymobile.com>
-Courtney
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH CFT] ARM:MSM: Enable ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR default
@ 2013-12-09 17:57 ` Courtney Cavin
0 siblings, 0 replies; 5+ messages in thread
From: Courtney Cavin @ 2013-12-09 17:57 UTC (permalink / raw)
To: panchaxari
Cc: linus.walleij, patches, linaro-kernel, David Brown,
Daniel Walker, Bryan Huntsman, Russell King, linux-arm-msm,
linux-arm-kernel, linux-kernel
On Mon, Dec 09, 2013 at 10:40:50AM +0100, panchaxari wrote:
> ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR have been enabled as default configs
> to MSM platform
>
> Introduction of PHYS_VIRT config as default would enable phy-to-virt and
> virt-to-phy translation function at boot and module loading time
> and enforce dynamic reallocation of memory. AUTO_ZRELADDR config would
> enable calculation of kernel load address at run time.
>
> PHYS_VIRT config is mutually exclusive to XIP_KERNEL, XIP_KERNEL is used in
> systems with NOR flash devices, and ZRELADDR config is mutually exclusive
> to ZBOOT_ROM.
>
> CFT::Call For Testing
>
> Requesting maintainers of MSM platforms to evaluate the changes on the board
> and comment, as I dont have the board for testing and also requesting an ACK
>
> Signed-off-by: panchaxari <panchaxari.prasannamurthy@linaro.org>
> Cc: David Brown <davidb@codeaurora.org>
> Cc: Daniel Walker <dwalker@fifo99.com>
> Cc: Bryan Huntsman <bryanh@codeaurora.org>
> Cc: Russell King <linux@arm.linux.org.uk>
> Cc: Linus Walleij <linus.walleij@linaro.org>
> Cc: linux-arm-msm@vger.kernel.org
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-kernel@vger.kernel.org
We run with these enabled on our development boards already.
Tested-by: Courtney Cavin <courtney.cavin@sonymobile.com>
-Courtney
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2013-12-09 17:57 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2013-12-09 9:40 [PATCH CFT] ARM:MSM: Enable ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR default panchaxari
2013-12-09 9:40 ` panchaxari
2013-12-09 17:57 ` Courtney Cavin
2013-12-09 17:57 ` Courtney Cavin
2013-12-09 17:57 ` Courtney Cavin
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