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From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 00/16 v9] omap 8250 based uart + DMA
Date: Tue, 16 Sep 2014 14:30:43 -0700
Message-ID: <20140916213043.GB6672@atomide.com> (raw)
In-Reply-To: <20140916164858.GA1580@atomide.com>

* Tony Lindgren <tony@atomide.com> [140916 09:49]:
> * Sebastian Andrzej Siewior <bigeasy@linutronix.de> [140916 05:58]:
> > On 09/15/2014 01:50 PM, Sebastian Andrzej Siewior wrote:
> > > I changed the restore function the fix the am335x-evm + less "freeze".
> > > And now we have this. So let me search?
> > 
> > IER was 0 by accident. It fixed in TX path.
> > I pushed uart_v10_pre1 which should have it fixed aport from other
> > things?
> 
> Just verified that works for my off-idle test case thanks.
> 
> > I am going to address the review comments, to split the DMA callbacks
> > as requested and if nobody comes up with something fancy we will have a
> > v10 :)
> 
> OK

Found one more issue when booting on 2420 n8x0, maybe something to do
with runtime PM?

Regards,

Tony

[    4.770507] Internal error: Oops - undefined instruction: 0 [#1] SMP ARM
[    4.777343] Modules linked in:
[    4.780487] CPU: 0 PID: 1 Comm: init Not tainted 3.17.0-rc5-00211-gc2182d0-dirty #1408
[    4.788482] task: c5842b80 ti: c5850000 task.ti: c5850000
[    4.793945] PC is at serial8250_start_tx+0x124/0x154
[    4.798980] LR is at uart_start+0x4c/0x5c
[    4.803039] pc : [<c03d7340>]    lr : [<c03d1ee4>]    psr: a0000093
[    4.803039] sp : c5851e10  ip : c5851e28  fp : c5851e24
[    4.814605] r10: 00000007  r9 : 00000000  r8 : c134d554
[    4.819885] r7 : c5cb7800  r6 : 20000013  r5 : c134d554  r4 : c134d554
[    4.826477] r3 : c134d690  r2 : 00000000  r1 : 00000001  r0 : c134d554
[    4.833068] Flags: NzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
[    4.840332] Control: 00c5387d  Table: 85cd8000  DAC: 00000015
[    4.846130] Process init (pid: 1, stack limit = 0xc5850248)
[    4.851776] Stack: (0xc5851e10 to 0xc5852000)
[    4.856201] 1e00:                                     c5cb7800 c134d554 c5851e44 c5851e28
[    4.864440] 1e20: c03d1ee4 c03d7228 c5842b80 00000000 c5b00408 c5cf3c07 c5851e7c c5851e48
[    4.872711] 1e40: c03d2da0 c03d1ea4 c5851e6c a0000013 c03d1fe0 c5cb7800 00000007 0000224c
[    4.880981] 1e60: c88cc2a0 00002250 c5cf3c00 c88ca000 c5851edc c5851e80 c03b9474 c03d2cd4
[    4.889251] 1e80: c5851e9c c5cb7ab4 c5cf3c00 c5cb793c c5a5ae00 c5850000 c0158e1c 00000000
[    4.897491] 1ea0: c5842b80 c007152c c5cb7ad4 c5cb7ad4 c5cb7800 0000e0cc 00000007 c5cb7800
[    4.905761] 1ec0: 00000000 c5850000 00000400 c5a5ae00 c5851f1c c5851ee0 c03b61c0 c03b92d0
[    4.914031] 1ee0: 00000007 00000007 c5cb18c0 c03b92c4 c0b19f20 00000000 00000007 0000e0cc
[    4.922271] 1f00: c5851f78 c5a5ae00 c5850000 0000e0cc c5851f44 c5851f20 c03b63c4 c03b60c0
[    4.930541] 1f20: c5851f78 c5a5ae00 00000007 0000e0cc c5851f78 00000007 c5851f74 c5851f48
[    4.938812] 1f40: c0168f38 c03b632c c0185718 c0185688 00000000 00000000 c5a5ae00 c5a5ae00
[    4.947052] 1f60: 00000007 0000e0cc c5851fa4 c5851f78 c0169380 c0168e90 00000000 00000000
[    4.955322] 1f80: 00000000 0000e0cc 00000001 00000004 c000f164 00000000 00000000 c5851fa8
[    4.963592] 1fa0: c000eee0 c0169340 00000000 0000e0cc 00000000 0000e0cc 00000007 00000000
[    4.971862] 1fc0: 00000000 0000e0cc 00000001 00000004 0000a24c 00017504 10000000 00000000
[    4.980102] 1fe0: bef5aa40 bef5aa30 0000a474 b6e801ec 60000010 00000000 ffffffff ffffffff
[    4.988372] [<c03d7340>] (serial8250_start_tx) from [<c03d1ee4>] (uart_start+0x4c/0x5c)
[    4.996490] [<c03d1ee4>] (uart_start) from [<c03d2da0>] (uart_write+0xd8/0x100)
[    5.003875] [<c03d2da0>] (uart_write) from [<c03b9474>] (n_tty_write+0x1b0/0x510)
[    5.011474] [<c03b9474>] (n_tty_write) from [<c03b61c0>] (tty_write+0x10c/0x26c)
[    5.018951] [<c03b61c0>] (tty_write) from [<c03b63c4>] (redirected_tty_write+0xa4/0xb8)
[    5.027038] [<c03b63c4>] (redirected_tty_write) from [<c0168f38>] (vfs_write+0xb4/0x1bc)
[    5.035217] [<c0168f38>] (vfs_write) from [<c0169380>] (SyS_write+0x4c/0x98)
[    5.042358] [<c0169380>] (SyS_write) from [<c000eee0>] (ret_fast_syscall+0x0/0x48)
[    5.050018] Code: e3a02000 ee072fba e3a01001 f5d3f000 (e1d30f9f) 

  reply index

Thread overview: 97+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-10 19:29 Sebastian Andrzej Siewior
2014-09-10 19:29 ` [PATCH 01/16] tty: serial: 8250_core: allow to set ->throttle / ->unthrottle callbacks Sebastian Andrzej Siewior
2014-09-10 19:29 ` [PATCH 02/16] tty: serial: 8250_core: add run time pm Sebastian Andrzej Siewior
2014-09-29  9:46   ` Frans Klaver
2014-09-29 13:39     ` Sebastian Andrzej Siewior
2014-09-10 19:29 ` [PATCH 03/16] tty: serial: 8250_core: read only RX if there is something in the FIFO Sebastian Andrzej Siewior
2015-02-09 13:34   ` Nicolas Schichan
2015-02-09 23:34     ` Peter Hurley
2015-02-10  9:32       ` Sebastian Andrzej Siewior
2015-02-10 12:04       ` Nicolas Schichan
2015-02-10 17:46         ` Peter Hurley
2015-02-11 20:01           ` Peter Hurley
2015-02-11 20:03             ` Tony Lindgren
2015-02-11 20:42               ` Peter Hurley
2015-02-12  8:45                 ` Sebastian Andrzej Siewior
2015-02-12  9:40                   ` Russell King - ARM Linux
2015-02-12 16:32                   ` Peter Hurley
2015-02-12 19:23                     ` Sebastian Andrzej Siewior
2015-02-12 19:55                       ` Peter Hurley
2015-02-12 20:34                         ` Sebastian Andrzej Siewior
2015-02-13 18:51                         ` Sebastian Andrzej Siewior
2015-02-13 23:15                           ` Russell King - ARM Linux
2015-02-15 17:32                             ` [PATCH] serial: 8250: Revert "tty: serial: 8250_core: read only RX if there is something in the FIFO" Sebastian Andrzej Siewior
2015-05-12 20:25                               ` Tony Lindgren
2014-09-10 19:29 ` [PATCH 04/16] tty: serial: 8250_core: use the ->line argument as a hint in serial8250_find_match_or_unused() Sebastian Andrzej Siewior
2014-09-10 19:30 ` [PATCH 05/16] tty: serial: 8250_core: remove UART_IER_RDI in serial8250_stop_rx() Sebastian Andrzej Siewior
2014-09-11 11:19   ` Heikki Krogerus
2014-09-10 19:30 ` [PATCH 06/16] tty: serial: Add 8250-core based omap driver Sebastian Andrzej Siewior
2014-09-11 11:57   ` Peter Hurley
2014-09-16 17:01     ` Sebastian Andrzej Siewior
2014-09-29  9:38   ` Frans Klaver
2014-09-29 13:27     ` Sebastian Andrzej Siewior
2014-09-29 13:34       ` Frans Klaver
2014-09-10 19:30 ` [PATCH 07/16] tty: serial: 8250_dma: handle error on TX submit Sebastian Andrzej Siewior
2014-09-10 19:30 ` [PATCH 08/16] tty: serial: 8250_dma: enqueue RX dma again on completion Sebastian Andrzej Siewior
2014-09-10 19:30 ` [PATCH 09/16] tty: serial: 8250_dma: Add a TX trigger workaround for AM33xx Sebastian Andrzej Siewior
2014-09-11 11:17   ` Heikki Krogerus
2014-09-11 11:42     ` Sebastian Andrzej Siewior
2014-09-11 12:32       ` Peter Hurley
2014-09-11 12:50         ` Sebastian Andrzej Siewior
2014-09-11 14:35           ` Peter Hurley
2014-09-15 17:01             ` Sebastian Andrzej Siewior
2014-09-16 16:55               ` Sebastian Andrzej Siewior
2014-09-17 12:20                 ` Peter Hurley
2014-09-17 16:25                   ` Sebastian Andrzej Siewior
2014-09-29 16:15                   ` Sebastian Andrzej Siewior
2014-09-11 15:11           ` Frans Klaver
2014-09-11 16:04             ` Sebastian Andrzej Siewior
2014-09-11 17:04               ` Frans Klaver
2014-09-12  7:23                 ` Sebastian Andrzej Siewior
     [not found]                   ` <20140912094010.GE28458@ci00147.xsens-tech.local>
2014-09-12  9:51                     ` Sebastian Andrzej Siewior
2014-09-12 10:28                       ` Frans Klaver
2014-09-15 16:42                         ` Sebastian Andrzej Siewior
2014-09-16  9:05                           ` Frans Klaver
2014-09-16 12:42                             ` Frans Klaver
2014-09-16 14:23                               ` Frans Klaver
2014-09-17 10:28                           ` Frans Klaver
2014-09-21 20:41                             ` Sebastian Andrzej Siewior
2014-09-22  9:28                               ` Frans Klaver
2014-09-24  7:56                                 ` Sebastian Andrzej Siewior
2014-09-25 15:14                                 ` Sebastian Andrzej Siewior
2014-09-25 15:18                                   ` Frans Klaver
2014-09-29  8:50                                   ` Frans Klaver
2014-09-29  9:54                                     ` Sebastian Andrzej Siewior
2014-09-29 10:30                                       ` Frans Klaver
2014-09-30  8:44                                         ` Frans Klaver
2014-10-02 10:27                                           ` Sebastian Andrzej Siewior
2014-10-13 14:55                                             ` Frans Klaver
2014-09-23 17:03                               ` Peter Hurley
2014-09-24  7:53                                 ` Sebastian Andrzej Siewior
2014-09-25 10:42                                   ` Sebastian Andrzej Siewior
2014-09-25 11:31                                     ` Peter Hurley
2014-09-25 13:11                                       ` Sebastian Andrzej Siewior
2014-09-17 16:34       ` Sebastian Andrzej Siewior
2014-09-19 10:22         ` Heikki Krogerus
2014-09-19 10:58           ` Sebastian Andrzej Siewior
2014-09-19 11:25             ` Peter Hurley
2014-09-22  7:46             ` Heikki Krogerus
2014-09-25  9:24               ` Sebastian Andrzej Siewior
2014-09-10 19:30 ` [PATCH 10/16] tty: serial: 8250_dma: optimize the xmit path due to UART_BUG_DMA_TX Sebastian Andrzej Siewior
2014-09-10 19:30 ` [PATCH 11/16] tty: serial: 8250_dma: keep own book keeping about RX transfers Sebastian Andrzej Siewior
2014-09-10 19:30 ` [PATCH 12/16] tty: serial: 8250_dma: handle the UART RDI event while DMA remains idle Sebastian Andrzej Siewior
2014-09-29  9:23   ` Frans Klaver
2014-09-10 19:30 ` [PATCH 13/16] tty: serial: 8250_dma: add pm runtime Sebastian Andrzej Siewior
2014-09-29  9:26   ` Frans Klaver
2014-09-29  9:56     ` Sebastian Andrzej Siewior
2014-09-10 19:30 ` [PATCH 14/16] arm: dts: am33xx: add DMA properties for UART Sebastian Andrzej Siewior
2014-09-10 19:30 ` [PATCH 15/16] arm: dts: dra7: " Sebastian Andrzej Siewior
2014-09-10 19:30 ` [PATCH 16/16] tty: serial: 8250: omap: add dma support Sebastian Andrzej Siewior
2014-09-12 22:43 ` [PATCH 00/16 v9] omap 8250 based uart + DMA Tony Lindgren
2014-09-15 11:50   ` Sebastian Andrzej Siewior
2014-09-16 12:57     ` Sebastian Andrzej Siewior
2014-09-16 16:48       ` Tony Lindgren
2014-09-16 21:30         ` Tony Lindgren [this message]
2014-09-17  8:38           ` Sebastian Andrzej Siewior
2014-09-17  9:05 ` Sebastian Andrzej Siewior
2014-09-26 16:02   ` Greg KH

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