Hello, On Fri, 20 Apr 2018 23:10:11 +0200 Mylène Josserand <mylene.josserand@xxxxxxxxxxx> wrote: > Hello everyone, > > This is a V7 of my series that adds SMP support for Allwinner sun8i-a83t. > Based on sunxi's tree, sunxi/for-next branch. > Depends on a patch from Doug Berger that allows to include the "cpu-type" > header on assembly files: > https://lkml.org/lkml/2018/2/23/1263 > (applied on Broadcom's tree: https://github.com/Broadcom/stblinux/commits/soc/next) And I forgot to say that I will have a look at the CPU0 hotplug but not on this series. Best regards, Mylène > > If you have any remarks/questions, let me know. > Thank you in advance, > Mylène > > Changes from v6: > - Correct the commit log on patch 07 according to Sergei Shtylyov's > review. > - Rename the field "is_sun8i" into "is_a83t". > - Add all Tested-by and Reviewed-by from previous version. > > Changes from v5: > - Remove my patch 01 and use the patch of Doug Berger to be able to > include the cpu-type header on assembly files. > - Rename smp_init_cntvoff function into secure_cntvoff_init according > to Marc Zyngier's review. > - According to Chen-Yu and Maxime's reviews, remove the patch that was > moving structures. Instead of using an index to retrieve which > architecture we are having, use a global variable. > - Merge the 2 patches that move assembly code from C to assembly file. > - Use a sun8i field instead of sun9i to know on which architecture we > are using because many modifications/additions of the code are for > sun8i-a83t. > - Rework the patch "add is_sun8i field" to add only this field in this > patch. The part of the patch that was starting to handle the differences > between sun8i-a83t and sun9i-a80 is merged in the patch that adds the > support of sun8i-a83t. > - Add a new patch that refactor the shmobile code to use the new function > secure_cntvoff_init introduced in this series. > > Changes from v4: > - Rebased my series according to new Chen-Yu series: > "ARM: sunxi: Clean and improvements for multi-cluster SMP" > https://lkml.org/lkml/2018/3/8/886 > - Updated my series according to Marc Zyngier's reviews to add CNTVOFF > initialization's function into ARM's common part. Thanks to that, other > platforms such as Renesa can use this function. > - For boot CPU, create a new machine to handle the CNTVOFF initialization > using "init_early" callback. > > Changes from v3: > - Take into account Maxime's reviews: > - split the first patch into 4 new patches: add sun9i device tree > parsing, rename some variables, add a83t support and finally, > add hotplug support. > - Move the code of previous patch 07 (to disable CPU0 disabling) > into hotplug support patch (see patch 04) > - Remove the patch that added PRCM register because it is already > available. Because of that, update the device tree parsing to use > "sun8i-a83t-r-ccu". > - Use a variable to know which SoC we currently have > - Take into account Chen-Yu's reviews: create two iounmap functions > to release the resources of the device tree parsing. > - Take into account Marc's review: Update the code to initialize CNTVOFF > register. As there is already assembly code in the driver, I decided > to create an assembly file not to mix assembly and C code. > For that, I create 3 new patches: move the current assembly code that > handles the cluster cache enabling into a file, move the cpu_resume entry > in this file and finally, add a new assembly entry to initialize the timer > offset for boot CPU and secondary CPUs. > > Changes from v2: > - Rebased my modifications according to new Chen Yu's patch series > that adds SMP support for sun9i-a80 (without MCPM). > - Split the device-tree patches into 3 patches for CPUCFG, R_CPUCFG > and PRCM registers for more visibility. > - The hotplug of CPU0 is currently not working (even after trying what > Allwinner's code is doing) so remove the possibility of disabling > this CPU. Created a new patch for it. > > Changes from v1: > - Add Chen Yu's patch in my series (see path 01) > - Add new compatibles for prcm and cpucfg registers for sun8i-a83t. > Create two functions to separate the DT parsing of sun9i-a80 and > sun8i-a83t. > - Thanks to Maxime's review: order device tree's nodes according > to physical addresses, remove unused label and fix registers' sizes. > Update the commit log and commit title of my last patch (see > patch 05). > > Mylène Josserand (11): > ARM: sunxi: smp: Move assembly code into a file > ARM: dts: sun8i: Add CPUCFG device node for A83T dtsi > ARM: dts: sun8i: Add R_CPUCFG device node for the A83T dtsi > ARM: dts: sun8i: a83t: Add CCI-400 node > ARM: smp: Add initialization of CNTVOFF > ARM: sunxi: Add initialization of CNTVOFF > ARM: sun9i: smp: Rename clusters's power-off > ARM: sun9i: smp: Add is_a83t field > ARM: sun8i: smp: Add support for A83T > ARM: dts: sun8i: Add enable-method for SMP support for the A83T SoC > ARM: shmobile: Convert file to use cntvoff > > arch/arm/boot/dts/sun8i-a83t.dtsi | 59 ++++++++ > arch/arm/common/Makefile | 1 + > arch/arm/common/secure_cntvoff.S | 31 ++++ > arch/arm/include/asm/secure_cntvoff.h | 8 ++ > arch/arm/mach-shmobile/common.h | 1 - > arch/arm/mach-shmobile/headsmp-apmu.S | 22 +-- > arch/arm/mach-shmobile/setup-rcar-gen2.c | 3 +- > arch/arm/mach-sunxi/Kconfig | 2 +- > arch/arm/mach-sunxi/Makefile | 4 +- > arch/arm/mach-sunxi/headsmp.S | 81 +++++++++++ > arch/arm/mach-sunxi/mc_smp.c | 239 +++++++++++++++++++------------ > arch/arm/mach-sunxi/sunxi.c | 20 ++- > 12 files changed, 349 insertions(+), 122 deletions(-) > create mode 100644 arch/arm/common/secure_cntvoff.S > create mode 100644 arch/arm/include/asm/secure_cntvoff.h > create mode 100644 arch/arm/mach-sunxi/headsmp.S >
