[PATCH v3 5/9] board_f: Fix corruption of relocaddr
Bin Meng
bmeng.cn at gmail.com
Thu Aug 3 13:03:47 CEST 2023
On Thu, Aug 3, 2023 at 6:37 PM Bin Meng <bmeng.cn at gmail.com> wrote:
>
> On Tue, Aug 1, 2023 at 12:00 AM Simon Glass <sjg at chromium.org> wrote:
> >
> > When the video framebuffer comes from the bloblist, we should not change
> > relocaddr to this address, since it interfers with the normal memory
>
> typo: interferes
>
> > allocation.
> >
> > This fixes a boot loop in qemu-x86_64
> >
> > Signed-off-by: Simon Glass <sjg at chromium.org>
> > Fixes: 5bc610a7d9d ("common: board_f: Pass frame buffer info from SPL to u-boot")
> > Suggested-by: Nikhil M Jain <n-jain1 at ti.com>
> > ---
> >
> > Changes in v3:
> > - Reword the Kconfig help as suggested
> >
> > Changes in v2:
> > - Add a Kconfig as the suggested conditional did not work
> >
> > common/board_f.c | 3 ++-
> > drivers/video/Kconfig | 9 +++++++++
> > 2 files changed, 11 insertions(+), 1 deletion(-)
> >
> > diff --git a/common/board_f.c b/common/board_f.c
> > index 7d2c380e91e..5173d0a0c2d 100644
> > --- a/common/board_f.c
> > +++ b/common/board_f.c
> > @@ -419,7 +419,8 @@ static int reserve_video(void)
> > if (!ho)
> > return log_msg_ret("blf", -ENOENT);
> > video_reserve_from_bloblist(ho);
> > - gd->relocaddr = ho->fb;
> > + if (IS_ENABLED(CONFIG_VIDEO_RESERVE_SPL))
> > + gd->relocaddr = ho->fb;
> > } else if (CONFIG_IS_ENABLED(VIDEO)) {
> > ulong addr;
> > int ret;
> > diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
> > index b41dc60cec5..f2e56204d52 100644
> > --- a/drivers/video/Kconfig
> > +++ b/drivers/video/Kconfig
> > @@ -1106,6 +1106,15 @@ config SPL_VIDEO_REMOVE
> > if this option is enabled video driver will be removed at the end of
> > SPL stage, beforeloading the next stage.
> >
> > +config VIDEO_RESERVE_SPL
> > + bool
> > + help
> > + This adjusts reserve_video() to redirect memory reservation when it
> > + sees a video handoff blob (BLOBLISTT_U_BOOT_VIDEO). This avoids the
> > + memory used for framebuffer from being allocated by U-Boot proper,
> > + thus preventing any further memory reservations done by U-Boot proper
> > + from overwriting the framebuffer.
> > +
> > if SPL_SPLASH_SCREEN
> >
> > config SPL_SPLASH_SCREEN_ALIGN
>
> Reviewed-by: Bin Meng <bmeng.cn at gmail.com>
applied to u-boot-x86, thanks!
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