linux-kernel - Re: [PATCH v2 3/3] RISC-V: Add arch functions to support hibernation/suspend-to-disk

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Date:   Tue, 10 Jan 2023 08:22:47 +0100
From:   Andrew Jones <ajones@...tanamicro.com>
To:     JeeHeng Sia <jeeheng.sia@...rfivetech.com>
Cc:     Conor Dooley <conor@...nel.org>,
        "paul.walmsley@...ive.com" <paul.walmsley@...ive.com>,
        "palmer@...belt.com" <palmer@...belt.com>,
        "aou@...s.berkeley.edu" <aou@...s.berkeley.edu>,
        "linux-riscv@...ts.infradead.org" <linux-riscv@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Leyfoon Tan <leyfoon.tan@...rfivetech.com>,
        Mason Huo <mason.huo@...rfivetech.com>
Subject: Re: [PATCH v2 3/3] RISC-V: Add arch functions to support
 hibernation/suspend-to-disk

On Tue, Jan 10, 2023 at 07:00:38AM +0000, JeeHeng Sia wrote:
> 
> 
> > -----Original Message-----
> > From: Conor Dooley <conor@...nel.org>
> > Sent: Tuesday, 10 January, 2023 3:46 AM
> > To: Andrew Jones <ajones@...tanamicro.com>
> > Cc: JeeHeng Sia <jeeheng.sia@...rfivetech.com>; paul.walmsley@...ive.com;
> > palmer@...belt.com; aou@...s.berkeley.edu; linux-
> > riscv@...ts.infradead.org; linux-kernel@...r.kernel.org; Leyfoon Tan
> > <leyfoon.tan@...rfivetech.com>; Mason Huo
> > <mason.huo@...rfivetech.com>
> > Subject: Re: [PATCH v2 3/3] RISC-V: Add arch functions to support
> > hibernation/suspend-to-disk
> > 
> > On Mon, Jan 09, 2023 at 08:36:24PM +0100, Andrew Jones wrote:
> > > On Mon, Jan 09, 2023 at 02:24:07PM +0800, Sia Jee Heng wrote:
> > 
> > > > To enable hibernation/suspend to disk into RISCV, the below config
> > > > need to be enabled:
> > > > - CONFIG_ARCH_HIBERNATION_HEADER
> > > > - CONFIG_ARCH_HIBERNATION_POSSIBLE
> > > > - CONFIG_ARCH_RV64I
> > > > - CONFIG_64BIT
> > 
> > > What's blocking this for being for both 32-bit and 64-bit?
> > 
> > Just from checking with b4 diff, it's because I told them they broke the
> > rv32 build with their v1 implementation.
> > 
> > I'd rather they fixed whatever the issue was with rv32 than ignored it.
> The main reason is because I don't have a rv32 system to verify the rv32 hibernation.

QEMU?

Thanks,
drew