From: gregkh@linuxfoundation.org (Greg KH)
To: linux-arm-kernel@lists.infradead.org
Subject: [RESEND PATCH] drm/hisilicon: Ensure LDI regs are properly configured.
Date: Fri, 30 Jun 2017 07:55:57 +0200 [thread overview]
Message-ID: <20170630055557.GA23014@kroah.com> (raw)
In-Reply-To: <1498769678-12155-1-git-send-email-peter.griffin@linaro.org>
On Thu, Jun 29, 2017 at 09:54:38PM +0100, Peter Griffin wrote:
> This patch fixes the following soft lockup:
> BUG: soft lockup - CPU#0 stuck for 23s! [weston:307]
>
> On weston idle-timeout the IP is powered down and reset
> asserted. On weston resume we get a massive vblank
> IRQ storm due to the LDI registers having lost some state.
>
> This state loss is caused by ade_crtc_atomic_begin() not
> calling ade_ldi_set_mode(). With this patch applied
> resuming from Weston idle-timeout works well.
>
> Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
> ---
> drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 3 +++
> 1 file changed, 3 insertions(+)
>
<formletter>
This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read:
https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.
</formletter>
WARNING: multiple messages have this Message-ID (diff)
From: Greg KH <gregkh@linuxfoundation.org>
To: Peter Griffin <peter.griffin@linaro.org>
Cc: puck.chen@hisilicon.com, linux-kernel@vger.kernel.org,
stable@vger.kernel.org, z.liuxinliang@hisilicon.com,
kong.kongxinwei@hisilicon.com, dri-devel@lists.freedesktop.org,
zourongrong@gmail.com, fathi.boudra@linaro.org,
andrey.konovalov@linaro.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [RESEND PATCH] drm/hisilicon: Ensure LDI regs are properly configured.
Date: Fri, 30 Jun 2017 07:55:57 +0200 [thread overview]
Message-ID: <20170630055557.GA23014@kroah.com> (raw)
In-Reply-To: <1498769678-12155-1-git-send-email-peter.griffin@linaro.org>
On Thu, Jun 29, 2017 at 09:54:38PM +0100, Peter Griffin wrote:
> This patch fixes the following soft lockup:
> BUG: soft lockup - CPU#0 stuck for 23s! [weston:307]
>
> On weston idle-timeout the IP is powered down and reset
> asserted. On weston resume we get a massive vblank
> IRQ storm due to the LDI registers having lost some state.
>
> This state loss is caused by ade_crtc_atomic_begin() not
> calling ade_ldi_set_mode(). With this patch applied
> resuming from Weston idle-timeout works well.
>
> Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
> ---
> drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 3 +++
> 1 file changed, 3 insertions(+)
>
<formletter>
This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read:
https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.
</formletter>
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
WARNING: multiple messages have this Message-ID (diff)
From: Greg KH <gregkh@linuxfoundation.org>
To: Peter Griffin <peter.griffin@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, z.liuxinliang@hisilicon.com,
zourongrong@gmail.com, kong.kongxinwei@hisilicon.com,
puck.chen@hisilicon.com, airlied@linux.ie,
stable@vger.kernel.org, john.stultz@linaro.org,
dri-devel@lists.freedesktop.org, andrey.konovalov@linaro.org,
fathi.boudra@linaro.org
Subject: Re: [RESEND PATCH] drm/hisilicon: Ensure LDI regs are properly configured.
Date: Fri, 30 Jun 2017 07:55:57 +0200 [thread overview]
Message-ID: <20170630055557.GA23014@kroah.com> (raw)
In-Reply-To: <1498769678-12155-1-git-send-email-peter.griffin@linaro.org>
On Thu, Jun 29, 2017 at 09:54:38PM +0100, Peter Griffin wrote:
> This patch fixes the following soft lockup:
> BUG: soft lockup - CPU#0 stuck for 23s! [weston:307]
>
> On weston idle-timeout the IP is powered down and reset
> asserted. On weston resume we get a massive vblank
> IRQ storm due to the LDI registers having lost some state.
>
> This state loss is caused by ade_crtc_atomic_begin() not
> calling ade_ldi_set_mode(). With this patch applied
> resuming from Weston idle-timeout works well.
>
> Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
> ---
> drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 3 +++
> 1 file changed, 3 insertions(+)
>
<formletter>
This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read:
https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.
</formletter>
next prev parent reply other threads:[~2017-06-30 5:55 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-29 20:54 [RESEND PATCH] drm/hisilicon: Ensure LDI regs are properly configured Peter Griffin
2017-06-29 20:54 ` Peter Griffin
2017-06-29 21:10 ` John Stultz
2017-06-29 21:10 ` John Stultz
2017-06-29 21:10 ` John Stultz
2017-06-30 5:55 ` Greg KH [this message]
2017-06-30 5:55 ` Greg KH
2017-06-30 5:55 ` Greg KH
-- strict thread matches above, loose matches on Subject: below --
2017-08-15 14:14 Peter Griffin
2017-08-15 14:14 ` Peter Griffin
2017-08-28 8:44 ` Xinliang Liu
2017-08-28 8:51 ` Daniel Vetter
2017-08-28 8:51 ` Daniel Vetter
2017-08-28 8:51 ` Daniel Vetter
2017-08-28 9:27 ` Xinliang Liu
2017-08-28 9:27 ` Xinliang Liu
2017-10-23 17:34 ` Peter Griffin
2017-10-25 1:00 ` liuxinliang
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