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From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Michael Nazzareno Trimarchi <michael@amarulasolutions.com>
Cc: linux-mtd@lists.infradead.org,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Greg Ungerer <gerg@kernel.org>,
	Boris Brezillon <bbrezillon@kernel.org>,
	Boris Brezillon <boris.brezillon@collabora.com>
Subject: Re: GPMI iMX6ull timeout on DMA
Date: Thu, 28 Jan 2021 11:26:27 +0100
Message-ID: <20210128112627.1429b02a@xps13> (raw)
In-Reply-To: <CAOf5uwmPzCU8WFRQ1tQBdN7OVGZZ9SvdAG0YqVAyxmA1zwtUhg@mail.gmail.com>

Hi Michael,

Michael Nazzareno Trimarchi <michael@amarulasolutions.com> wrote on
Thu, 28 Jan 2021 10:45:29 +0100:

> Hi Greg
> 
> On Tue, Aug 13, 2019 at 2:50 AM Greg Ungerer <gerg@kernel.org> wrote:
> >
> > Hi Boris,
> >
> > On 12/8/19 5:31 pm, Boris Brezillon wrote:  
> > > On Mon, 12 Aug 2019 12:50:36 +1000  
> > [snip]  
> > > Hm, CTRL1 is identical. Can you dump all regs at the beginning and at
> > > the end of those funcs?  
> >
> > Here is a more complete dump of registers. Trace points are at
> > entry and exit of the respective functions in the different
> > kernel versions. Register dumping code is identical for both.
> >
> >
> > Linux version 4.16.0 (gerg@goober) (gcc version 4.8.3 (GCC)) #10 Tue Aug 13 10:24:28 AEST 2019
> > ...  
> 
> I ran an overnight reboot process on linux-4.19.y tag: v4.19.169 and
> I'm not able to reproduce up to now.
> 
> Do you have an update from your side?

Perhaps this patch [1] was backported to v4.19.169 (I didn't check) but
it might have fixed the DMA issue you were seeing, at least in the
recent kernel versions.

[1] mtd: rawnand: gpmi: Fix the random DMA timeout issue

Thanks,
Miquèl

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Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-29  6:41 Greg Ungerer
2019-07-29  8:36 ` Miquel Raynal
2019-07-29  8:42   ` Michael Nazzareno Trimarchi
2019-07-29 12:18     ` Greg Ungerer
2019-07-29 12:20       ` Michael Nazzareno Trimarchi
2019-07-29 12:33   ` Greg Ungerer
2019-07-29 12:47     ` Miquel Raynal
2019-07-29 12:49       ` Michael Nazzareno Trimarchi
2019-07-29 12:55         ` Miquel Raynal
2019-07-29 13:00           ` Michael Nazzareno Trimarchi
2019-07-29 13:22             ` Miquel Raynal
2019-07-29 20:00               ` Michael Nazzareno Trimarchi
2019-07-29 21:02                 ` Miquel Raynal
2019-07-30  0:28       ` Greg Ungerer
2019-07-30  0:41         ` Greg Ungerer
2019-07-30  6:06           ` Greg Ungerer
2019-07-30  8:38             ` Miquel Raynal
2019-07-30  8:58               ` Boris Brezillon
2019-07-31  2:05               ` Greg Ungerer
2019-07-31  6:28                 ` Boris Brezillon
2019-08-02  7:19                   ` Greg Ungerer
2019-08-02 12:34                   ` Greg Ungerer
2019-08-02 12:51                     ` Boris Brezillon
2019-08-05  5:51                       ` Greg Ungerer
2019-08-07 16:05                         ` Miquel Raynal
2019-08-08  0:43                           ` Greg Ungerer
2019-08-08 16:36                         ` Boris Brezillon
2019-08-09  5:20                           ` Greg Ungerer
2019-08-09  6:23                             ` Boris Brezillon
2019-08-09  6:55                               ` Greg Ungerer
2019-08-09  7:32                                 ` Boris Brezillon
2019-08-09 13:57                                   ` Greg Ungerer
2019-08-09 13:59                                     ` Boris Brezillon
2019-08-12  2:50                                       ` Greg Ungerer
2019-08-12  4:04                                         ` Greg Ungerer
2019-08-12  7:31                                         ` Boris Brezillon
2019-08-13  0:50                                           ` Greg Ungerer
2021-01-28  9:45                                             ` Michael Nazzareno Trimarchi
2021-01-28 10:26                                               ` Miquel Raynal [this message]
2021-01-28 10:35                                                 ` Michael Nazzareno Trimarchi
2021-01-28 11:55                                                   ` Michael Nazzareno Trimarchi
2021-01-29 12:43                                               ` Greg Ungerer
2021-01-30  9:41                                                 ` Michael Nazzareno Trimarchi
2021-02-01 14:13                                                   ` Miquel Raynal
2021-02-01 14:32                                                     ` Michael Nazzareno Trimarchi
2021-02-01 15:08                                                       ` Michael Nazzareno Trimarchi
2021-02-01 15:14                                                         ` Miquel Raynal
2021-02-01 15:17                                                           ` Michael Nazzareno Trimarchi
  -- strict thread matches above, loose matches on Subject: below --
2018-10-02 13:22 GPMI IMX6ull timeout on dma Michael Nazzareno Trimarchi
2018-10-04 14:36 ` Michael Nazzareno Trimarchi

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