linux-kernel - Re: [PATCH v4 0/5] remoteproc: Add elf64 support

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Date:   Tue, 11 Feb 2020 16:12:53 -0700
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     Arnaud POULIQUEN <arnaud.pouliquen@...com>
Cc:     Clement Leger <cleger@...ray.eu>, Ohad Ben-Cohen <ohad@...ery.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Jonathan Corbet <corbet@....net>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        linux-remoteproc@...r.kernel.org,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Andy Gross <agross@...nel.org>,
        Patrice Chotard <patrice.chotard@...com>,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org,
        Loic PALLARDY <loic.pallardy@...com>, s-anna <s-anna@...com>
Subject: Re: [PATCH v4 0/5] remoteproc: Add elf64 support

On Tue, Feb 11, 2020 at 04:57:18PM +0100, Arnaud POULIQUEN wrote:
> Hi Clement,
> 
> I tested the series on the stm32 platform for remote proc firmwre load: no regression found.
> I do not test the da_to_va feature as not implemented on stm32 platform.

It would be very interesting if you could test the coredump, that would give us
a lot more confidence in the implementation.

Thanks,
Mathieu

> 
> Regards,
> Arnaud
> 
> 
> 
> On 2/10/20 5:22 PM, Clement Leger wrote:
> > This serie add support for elf64 in remoteproc (elf loader, coredump). 
> > First two patches modifies the type of len argument (in da_to_va) and
> > boot_addr in order to allow loading elf64 segment with a u64 size
> > and a u64 entry point.
> > Next patch introduce a set of macros to access elf64 and elf32
> > transparently.
> > Last two patches are the actual modification in the elf loader and
> > remoteproc coredump support to add elf64 support.
> > 
> > Changes from V3:
> >  - Adapt coredump to elf64 file format
> >  - Rename remoteproc_elf_loader.h to remoteproc_elf_helpers.h
> >  - Update copyright year in remoteproc_elf_helpers.h
> >  - Rename macros elf_hdr_* to elf_get_hdr_* for coherency with elf_hdr_set_*
> >  - Split elf64 loader patch in 3:
> >    - boot_addr u64 change
> >    - remoteproc_elf_helpers.h creation
> >    - elf64 loading
> > 
> > Clement Leger (5):
> >   remoteproc: Use u64 len for da_to_va
> >   remoteproc: Use u64 type for boot_addr
> >   remoteproc: Add elf helpers to access elf64 and elf32 fields
> >   remoteproc: Add elf64 support in elf loader
> >   remoteproc: Adapt coredump to generate correct elf type
> > 
> >  Documentation/remoteproc.txt                |   2 +-
> >  drivers/remoteproc/imx_rproc.c              |  11 +-
> >  drivers/remoteproc/keystone_remoteproc.c    |   4 +-
> >  drivers/remoteproc/qcom_q6v5_adsp.c         |   2 +-
> >  drivers/remoteproc/qcom_q6v5_mss.c          |   2 +-
> >  drivers/remoteproc/qcom_q6v5_pas.c          |   2 +-
> >  drivers/remoteproc/qcom_q6v5_wcss.c         |   2 +-
> >  drivers/remoteproc/qcom_wcnss.c             |   2 +-
> >  drivers/remoteproc/remoteproc_core.c        |  69 +++++++------
> >  drivers/remoteproc/remoteproc_elf_helpers.h |  95 ++++++++++++++++++
> >  drivers/remoteproc/remoteproc_elf_loader.c  | 150 ++++++++++++++++++----------
> >  drivers/remoteproc/remoteproc_internal.h    |   4 +-
> >  drivers/remoteproc/st_remoteproc.c          |   2 +-
> >  drivers/remoteproc/st_slim_rproc.c          |   4 +-
> >  drivers/remoteproc/wkup_m3_rproc.c          |   4 +-
> >  include/linux/remoteproc.h                  |   7 +-
> >  16 files changed, 252 insertions(+), 110 deletions(-)
> >  create mode 100644 drivers/remoteproc/remoteproc_elf_helpers.h
> >