| Message ID | cover.1431565427.git.horms+renesas@verge.net.au |
|---|---|
| State | New |
| Headers | show |
On Thu, May 14, 2015 at 3:06 AM, Simon Horman <horms+renesas@verge.net.au> wrote: > Hi Olof, Hi Kevin, Hi Arnd, > > Please consider these Renesas ARM based SoC DT updates for v4.2. > > > The following changes since commit b787f68c36d49bb1d9236f403813641efa74a031: > > Linux 4.1-rc1 (2015-04-26 17:59:10 -0700) > > are available in the git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git tags/renesas-dt-for-v4.2 > > for you to fetch changes up to 7706993e2deb75022dbcfc3043890aa1a0020189: > > ARM: shmobile: r8a7791: Enable DMA for HSUSB (2015-05-12 08:55:16 +0900) > > ---------------------------------------------------------------- > Renesas ARM Based SoC DT Updates for v4.2 > > * Enable DMA for HSUSB on r8a7790 and r8a7791 SoCs > * Configure the HOME key as wake-up source on kzm9g board > * Use generic names for device nodes on SH Mobile SoCs and boards > * Add "nor-jedec" compatible value to SH Mobile boards Please note Brian is reconsidering this compatible value. If the binding will be changed (which has to happen before v4.1 is released), the above must be changed, too. > * Add IRQC clock to r8a73a4, r8a779* SoCs > * Remove MSIOF address from r8a7790 and r8a7791 SoCs > > ---------------------------------------------------------------- > Geert Uytterhoeven (25): > ARM: shmobile: henninger dts: Add "nor-jedec" compatible value > ARM: shmobile: bockw-reference dts: Add "nor-jedec" compatible value > ARM: shmobile: lager dts: Add "nor-jedec" compatible value > ARM: shmobile: bockw dts: Add "nor-jedec" compatible value > ARM: shmobile: koelsch dts: Add "nor-jedec" compatible value
On Thu, May 14, 2015 at 05:37:35PM +0200, Geert Uytterhoeven wrote: > On Thu, May 14, 2015 at 3:06 AM, Simon Horman > <horms+renesas@verge.net.au> wrote: > > Hi Olof, Hi Kevin, Hi Arnd, > > > > Please consider these Renesas ARM based SoC DT updates for v4.2. > > > > > > The following changes since commit b787f68c36d49bb1d9236f403813641efa74a031: > > > > Linux 4.1-rc1 (2015-04-26 17:59:10 -0700) > > > > are available in the git repository at: > > > > git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git tags/renesas-dt-for-v4.2 > > > > for you to fetch changes up to 7706993e2deb75022dbcfc3043890aa1a0020189: > > > > ARM: shmobile: r8a7791: Enable DMA for HSUSB (2015-05-12 08:55:16 +0900) > > > > ---------------------------------------------------------------- > > Renesas ARM Based SoC DT Updates for v4.2 > > > > * Enable DMA for HSUSB on r8a7790 and r8a7791 SoCs > > * Configure the HOME key as wake-up source on kzm9g board > > * Use generic names for device nodes on SH Mobile SoCs and boards > > * Add "nor-jedec" compatible value to SH Mobile boards > > Please note Brian is reconsidering this compatible value. > If the binding will be changed (which has to happen before v4.1 is released), > the above must be changed, too. Noted. I believe we can leave this pull-request as is and follow up with any changes as needed. > > * Add IRQC clock to r8a73a4, r8a779* SoCs > > * Remove MSIOF address from r8a7790 and r8a7791 SoCs > > > > ---------------------------------------------------------------- > > Geert Uytterhoeven (25): > > > ARM: shmobile: henninger dts: Add "nor-jedec" compatible value > > ARM: shmobile: bockw-reference dts: Add "nor-jedec" compatible value > > ARM: shmobile: lager dts: Add "nor-jedec" compatible value > > ARM: shmobile: bockw dts: Add "nor-jedec" compatible value > > ARM: shmobile: koelsch dts: Add "nor-jedec" compatible value > > > > > -- > Gr{oetje,eeting}s, > > Geert > > -- > Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org > > In personal conversations with technical people, I call myself a hacker. But > when I'm talking to journalists I just say "programmer" or something like that. > -- Linus Torvalds > -- > To unsubscribe from this list: send the line "unsubscribe linux-sh" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >
On Fri, May 15, 2015 at 2:44 AM, Simon Horman <horms@verge.net.au> wrote: >> > * Add "nor-jedec" compatible value to SH Mobile boards >> >> Please note Brian is reconsidering this compatible value. >> If the binding will be changed (which has to happen before v4.1 is released), >> the above must be changed, too. > > Noted. I believe we can leave this pull-request as is and > follow up with any changes as needed. Yes we can. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
On Thursday 14 May 2015 10:06:56 Simon Horman wrote: > Renesas ARM Based SoC DT Updates for v4.2 > > * Enable DMA for HSUSB on r8a7790 and r8a7791 SoCs > * Configure the HOME key as wake-up source on kzm9g board > * Use generic names for device nodes on SH Mobile SoCs and boards > * Add "nor-jedec" compatible value to SH Mobile boards > * Add IRQC clock to r8a73a4, r8a779* SoCs > * Remove MSIOF address from r8a7790 and r8a7791 SoCs Pulled into next/dt, thanks! Please follow-up with a change for the nor-jedec property once that discussion has concluded. Arnd
On Fri, May 15, 2015 at 05:22:23PM +0200, Arnd Bergmann wrote: > On Thursday 14 May 2015 10:06:56 Simon Horman wrote: > > Renesas ARM Based SoC DT Updates for v4.2 > > > > * Enable DMA for HSUSB on r8a7790 and r8a7791 SoCs > > * Configure the HOME key as wake-up source on kzm9g board > > * Use generic names for device nodes on SH Mobile SoCs and boards > > * Add "nor-jedec" compatible value to SH Mobile boards > > * Add IRQC clock to r8a73a4, r8a779* SoCs > > * Remove MSIOF address from r8a7790 and r8a7791 SoCs > > Pulled into next/dt, thanks! > > Please follow-up with a change for the nor-jedec property once that > discussion has concluded. Thanks Arnd, will do.
Hello! On 05/14/2015 04:06 AM, Simon Horman wrote: > From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> > > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> > Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> > Signed-off-by: Simon Horman <horms+renesas@verge.net.au> > --- > arch/arm/boot/dts/r8a7791.dtsi | 22 ++++++++++++++++++++++ > 1 file changed, 22 insertions(+) When the USB-DMAC driver is enabled, this causes kernel oops on at least the R8A7791 Henninger/Porter boards (haven't checked the others yet) with renesas-devel-20150928-v4.3-rc3 and even earlier tag. The oops can only be seen with the earlyprintk=serial kernel parameter, otherwise the kernel just hangs with a blank console. Unable to handle kernel NULL pointer dereference at virtual address 00000014 SuperH (H)SCI(F) driver initialized e6e60000.serial: ttySC0 at MMIO 0xe6e60000 (irq = 105, base_baud = 0) is a scif pgd = c0004000 [00000014] *pgd=00000000 Internal error: Oops: 5 [#1] PREEMPT SMP ARM Modules linked in: CPU: 0 PID: 47 Comm: kworker/0:1 Not tainted 4.3.0-rc3-dirty #936 Hardware name: Generic R8A7791 (Flattened Device Tree) Workqueue: pm pm_runtime_work task: ee933100 ti: ee998000 task.ti: ee998000 PC is at usb_dmac_chan_halt+0x14/0xd0 LR is at usb_dmac_runtime_suspend+0x2c/0x40 pc : [<c027f0e0>] lr : [<c027f1c8>] psr: 80000113 sp : ee999da8 ip : ee999dc0 fp : ee999dbc r10: ee802400 r9 : c02dcb18 r8 : ee93d810 r7 : 6bd8a034 r6 : 00000090 r5 : eebd1210 r4 : 00000001 r3 : 00000000 r2 : 6bd8a034 r1 : 0000012e r0 : eebd1210 Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 10c5387d Table: 4000406a DAC: 00000051 Process kworker/0:1 (pid: 47, stack limit = 0xee998210) Stack: (0xee999da8 to 0xee99a000) 9da0: 00000001 eebdaf50 ee999ddc ee999dc0 c027f1c8 c027f0d8 9dc0: c027f19c ee93d810 c02ddfc4 00000000 ee999dec ee999de0 c02d60e0 c027f1a8 9de0: ee999dfc ee999df0 c02dcba0 c02d60b8 ee999e34 ee999e00 c02de040 c02dcb24 9e00: 6bd8a034 00000000 00000000 ee93d810 c02ddfc4 00000000 0000000a 00000000 9e20: 00000003 00000008 ee999e4c ee999e38 c02d78cc c02ddfd0 ee93d810 c02ddfc4 9e40: ee999e64 ee999e50 c02d7964 c02d78a0 ee93d810 c02ddfc4 ee999eb4 ee999e68 9e60: c02d7ee4 c02d7900 ee999e84 ee999e80 c0531e44 c0045518 ee999eb4 ee999e88 9e80: c005a1d8 c0531e20 00000000 ee93d810 00000000 00000002 c0726100 eefc9700 9ea0: 00000000 00000000 ee999ed4 ee999eb8 c02d813c c02d7cd0 00000000 ee93d8b8 9ec0: ee93d874 eefc3700 ee999eec ee999ed8 c02d8c84 c02d80d0 ee938000 ee93d8b8 9ee0: ee999f2c ee999ef0 c003c13c c02d8c28 ee999f14 ee999f00 c004827c c0048174 9f00: 00000000 ee938000 eefc3700 eefc3714 c0726100 ee938018 00000008 00000000 9f20: ee999f5c ee999f30 c003c554 c003bf90 ee933100 ee9065c0 00000000 ee938000 9f40: c003c2c0 00000000 00000000 00000000 ee999fac ee999f60 c0040e24 c003c2cc 9f60: fffefffa 00000000 febbfffa ee938000 00000000 00000000 ee999f78 ee999f78 9f80: 00000000 00000000 ee999f88 ee999f88 ee9065c0 c0040d34 00000000 00000000 9fa0: 00000000 ee999fb0 c00105d8 c0040d40 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 ddffddfa dff45ff7 Backtrace: [<c027f0cc>] (usb_dmac_chan_halt) from [<c027f1c8>] (usb_dmac_runtime_suspend+0) r5:eebdaf50 r4:00000001 [<c027f19c>] (usb_dmac_runtime_suspend) from [<c02d60e0>] (pm_generic_runtime_s) r6:00000000 r5:c02ddfc4 r4:ee93d810 r3:c027f19c [<c02d60ac>] (pm_generic_runtime_suspend) from [<c02dcba0>] (pm_genpd_default_s) [<c02dcb18>] (pm_genpd_default_save_state) from [<c02de040>] (pm_genpd_runtime_) [<c02ddfc4>] (pm_genpd_runtime_suspend) from [<c02d78cc>] (__rpm_callback+0x38/) r10:00000008 r9:00000003 r8:00000000 r7:0000000a r6:00000000 r5:c02ddfc4 r4:ee93d810 [<c02d7894>] (__rpm_callback) from [<c02d7964>] (rpm_callback+0x70/0x88) r5:c02ddfc4 r4:ee93d810 [<c02d78f4>] (rpm_callback) from [<c02d7ee4>] (rpm_suspend+0x220/0x38c) r5:c02ddfc4 r4:ee93d810 [<c02d7cc4>] (rpm_suspend) from [<c02d813c>] (rpm_idle+0x78/0x128) r10:00000000 r9:00000000 r8:eefc9700 r7:c0726100 r6:00000002 r5:00000000 r4:ee93d810 [<c02d80c4>] (rpm_idle) from [<c02d8c84>] (pm_runtime_work+0x68/0x94) r6:eefc3700 r5:ee93d874 r4:ee93d8b8 r3:00000000 [<c02d8c1c>] (pm_runtime_work) from [<c003c13c>] (process_one_work+0x1b8/0x308) r5:ee93d8b8 r4:ee938000 [<c003bf84>] (process_one_work) from [<c003c554>] (worker_thread+0x294/0x408) r10:00000000 r9:00000008 r8:ee938018 r7:c0726100 r6:eefc3714 r5:eefc3700 r4:ee938000 [<c003c2c0>] (worker_thread) from [<c0040e24>] (kthread+0xf0/0x104) r10:00000000 r9:00000000 r8:00000000 r7:c003c2c0 r6:ee938000 r5:00000000 r4:ee9065c0 r3:ee933100 [<c0040d34>] (kthread) from [<c00105d8>] (ret_from_fork+0x14/0x3c) r7:00000000 r6:00000000 r5:c0040d34 r4:ee9065c0 Code: e92dd830 e24cb004 e590306c e1a05000 (e5934014) console [ttySC0] enabled console [ttySC0] enabled bootconsole [earlycon0] disabled bootconsole [earlycon0] disabled [drm] Initialized drm 1.1.0 20060810 ---[ end trace ef953a249b09c4af ]--- Unable to handle kernel paging request at virtual address ffffffec pgd = c0004000 [ffffffec] *pgd=6f7fd861, *pte=00000000, *ppte=00000000 Internal error: Oops: 37 [#2] PREEMPT SMP ARM Modules linked in: CPU: 0 PID: 47 Comm: kworker/0:1 Tainted: G D 4.3.0-rc3-dirty #936 Hardware name: Generic R8A7791 (Flattened Device Tree) task: ee933100 ti: ee998000 task.ti: ee998000 PC is at kthread_data+0x10/0x18 LR is at wq_worker_sleeping+0x14/0xd8 pc : [<c0041438>] lr : [<c003cbb4>] psr: 00000193 sp : ee999b08 ip : ee999b18 fp : ee999b14 r10: ee933320 r9 : c0650b95 r8 : c052ea2c r7 : ee9333a8 r6 : 00000000 r5 : eefc3b80 r4 : 00000000 r3 : 00000000 r2 : ac9a9d49 r1 : 00000000 r0 : ee933100 Flags: nzcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none Control: 10c5387d Table: 4000406a DAC: 00000051 Process kworker/0:1 (pid: 47, stack limit = 0xee998210) Stack: (0xee999b08 to 0xee99a000) 9b00: ee999b2c ee999b18 c003cbb4 c0041434 0420806c ee933100 9b20: ee999b6c ee999b30 c052e428 c003cbac c001296c c001353c 00000000 c0013ed4 9b40: ee999b64 ee933100 ee999b88 ee99994c c027f0e0 00000001 c0650b95 ee933320 9b60: ee999b7c ee999b70 c052ea2c c052e350 ee999ba4 ee999b80 c0029a48 c052e998 9b80: ee999bf2 c027f0e0 ee999b88 ee999b88 c0026f30 c027f0e0 ee999c24 ee999ba8 9ba0: c0013ed4 c002921c ee998210 0000000b ee999bd4 c0650b8d 60000113 00000000 9bc0: 65650dcb 64643239 20303338 63343265 34303062 39356520 36303330 31652063 9be0: 30353061 28203030 33393565 34313034 c0002029 c009c594 c0650dcb 00000014 9c00: 00000005 00000000 ee999d58 00000000 c02dcb18 00000005 ee999c3c ee999c28 9c20: c00212b0 c0013b24 ee999d58 ee933100 ee999c8c ee999c40 c001cd58 c0021260 9c40: c065a8e2 ef5cf060 ee999c84 ee999c58 c001296c c001353c 00000000 c00a42a8 9c60: ee999c84 00000005 00000014 c0729fa4 00000005 ee93d810 c02dcb18 ee802400 9c80: ee999cac ee999c90 c001ce7c c001cab0 00000005 00000014 c0729fa4 ee999d58 9ca0: ee999d54 ee999cb0 c000a2bc c001ce64 ee999d3c ee999cc0 c00a42bc c001f4c0 9cc0: 00000141 fec334d1 effd3bb9 d17b5fc0 00000000 ee8333fc ee999cfc ee999ce8 9ce0: ee999cfc fffffffa 00000001 c07246ae ee999d1c ee999d00 c0013554 c0012904 9d00: c0012928 00000000 ee999da8 00000000 ee999d4c ee999d20 c001296c c001353c 9d20: 00000000 c052adc8 ee999d4c ee999d38 c004817c c005d66c c027f0e0 80000113 9d40: ffffffff ee999d8c ee999dbc ee999d58 c0014620 c000a28c eebd1210 0000012e 9d60: 6bd8a034 00000000 00000001 eebd1210 00000090 6bd8a034 ee93d810 c02dcb18 9d80: ee802400 ee999dbc ee999dc0 ee999da8 c027f1c8 c027f0e0 80000113 ffffffff 9da0: 00000051 c052b038 00000001 eebdaf50 ee999ddc ee999dc0 c027f1c8 c027f0d8 9dc0: c027f19c ee93d810 c02ddfc4 00000000 ee999dec ee999de0 c02d60e0 c027f1a8 9de0: ee999dfc ee999df0 c02dcba0 c02d60b8 ee999e34 ee999e00 c02de040 c02dcb24 9e00: 6bd8a034 00000000 00000000 ee93d810 c02ddfc4 00000000 0000000a 00000000 9e20: 00000003 00000008 ee999e4c ee999e38 c02d78cc c02ddfd0 ee93d810 c02ddfc4 9e40: ee999e64 ee999e50 c02d7964 c02d78a0 ee93d810 c02ddfc4 ee999eb4 ee999e68 9e60: c02d7ee4 c02d7900 ee999e84 ee999e80 c0531e44 c0045518 ee999eb4 ee999e88 9e80: c005a1d8 c0531e20 00000000 ee93d810 00000000 00000002 c0726100 eefc9700 9ea0: 00000000 00000000 ee999ed4 ee999eb8 c02d813c c02d7cd0 00000000 ee93d8b8 9ec0: ee93d874 eefc3700 ee999eec ee999ed8 c02d8c84 c02d80d0 ee938000 ee93d8b8 9ee0: ee999f2c ee999ef0 c003c13c c02d8c28 ee999f14 ee999f00 c004827c c0048174 9f00: 00000000 ee938000 eefc3700 eefc3714 c0726100 ee938018 00000008 00000000 9f20: ee999f5c ee999f30 c003c554 c003bf90 ee933100 ee9065c0 00000000 ee938000 9f40: c003c2c0 00000000 00000000 00000000 ee999fac ee999f60 c0040e24 c003c2cc 9f60: fffefffa 00000000 febbfffa ee938000 00000000 00000000 ee999f78 ee999f78 9f80: 00000001 00010001 ee999f88 ee999f88 ee9065c0 c0040d34 00000000 00000000 9fa0: 00000000 ee999fb0 c00105d8 c0040d40 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 ddffddfa dff45ff7 Backtrace: [<c0041428>] (kthread_data) from [<c003cbb4>] (wq_worker_sleeping+0x14/0xd8) [<c003cba0>] (wq_worker_sleeping) from [<c052e428>] (__schedule+0xe4/0x4b0) r4:ee933100 r3:0420806c [<c052e344>] (__schedule) from [<c052ea2c>] (schedule+0xa0/0xc4) r10:ee933320 r9:c0650b95 r8:00000001 r7:c027f0e0 r6:ee99994c r5:ee999b88 r4:ee933100 [<c052e98c>] (schedule) from [<c0029a48>] (do_exit+0x838/0x880) [<c0029210>] (do_exit) from [<c0013ed4>] (die+0x3bc/0x438) r7:c027f0e0 [<c0013b18>] (die) from [<c00212b0>] (__do_kernel_fault.part.0+0x5c/0xdac) r10:00000005 r9:c02dcb18 r8:00000000 r7:ee999d58 r6:00000000 r5:00000005 r4:00000014 [<c0021254>] (__do_kernel_fault.part.0) from [<c001cd58>] (do_page_fault+0x2b4/) r7:ee933100 r3:ee999d58 [<c001caa4>] (do_page_fault) from [<c001ce7c>] (do_translation_fault+0x24/0xb4) r10:ee802400 r9:c02dcb18 r8:ee93d810 r7:00000005 r6:c0729fa4 r5:00000014 r4:00000005 [<c001ce58>] (do_translation_fault) from [<c000a2bc>] (do_DataAbort+0x3c/0xbc) r7:ee999d58 r6:c0729fa4 r5:00000014 r4:00000005 [<c000a280>] (do_DataAbort) from [<c0014620>] (__dabt_svc+0x40/0x60) Exception stack(0xee999d58 to 0xee999da0) 9d40: eebd1210 0000012e 9d60: 6bd8a034 00000000 00000001 eebd1210 00000090 6bd8a034 ee93d810 c02dcb18 9d80: ee802400 ee999dbc ee999dc0 ee999da8 c027f1c8 c027f0e0 80000113 ffffffff r7:ee999d8c r6:ffffffff r5:80000113 r4:c027f0e0 [<c027f0cc>] (usb_dmac_chan_halt) from [<c027f1c8>] (usb_dmac_runtime_suspend+0) r5:eebdaf50 r4:00000001 [<c027f19c>] (usb_dmac_runtime_suspend) from [<c02d60e0>] (pm_generic_runtime_s) r6:00000000 r5:c02ddfc4 r4:ee93d810 r3:c027f19c [<c02d60ac>] (pm_generic_runtime_suspend) from [<c02dcba0>] (pm_genpd_default_s) [<c02dcb18>] (pm_genpd_default_save_state) from [<c02de040>] (pm_genpd_runtime_) [<c02ddfc4>] (pm_genpd_runtime_suspend) from [<c02d78cc>] (__rpm_callback+0x38/) r10:00000008 r9:00000003 r8:00000000 r7:0000000a r6:00000000 r5:c02ddfc4 r4:ee93d810 [<c02d7894>] (__rpm_callback) from [<c02d7964>] (rpm_callback+0x70/0x88) r5:c02ddfc4 r4:ee93d810 [<c02d78f4>] (rpm_callback) from [<c02d7ee4>] (rpm_suspend+0x220/0x38c) r5:c02ddfc4 r4:ee93d810 [<c02d7cc4>] (rpm_suspend) from [<c02d813c>] (rpm_idle+0x78/0x128) r10:00000000 r9:00000000 r8:eefc9700 r7:c0726100 r6:00000002 r5:00000000 r4:ee93d810 [<c02d80c4>] (rpm_idle) from [<c02d8c84>] (pm_runtime_work+0x68/0x94) r6:eefc3700 r5:ee93d874 r4:ee93d8b8 r3:00000000 [<c02d8c1c>] (pm_runtime_work) from [<c003c13c>] (process_one_work+0x1b8/0x308) r5:ee93d8b8 r4:ee938000 [<c003bf84>] (process_one_work) from [<c003c554>] (worker_thread+0x294/0x408) r10:00000000 r9:00000008 r8:ee938018 r7:c0726100 r6:eefc3714 r5:eefc3700 r4:ee938000 [<c003c2c0>] (worker_thread) from [<c0040e24>] (kthread+0xf0/0x104) r10:00000000 r9:00000000 r8:00000000 r7:c003c2c0 r6:ee938000 r5:00000000 r4:ee9065c0 r3:ee933100 [<c0040d34>] (kthread) from [<c00105d8>] (ret_from_fork+0x14/0x3c) r7:00000000 r6:00000000 r5:c0040d34 r4:ee9065c0 Code: e1a0c00d e92dd800 e24cb004 e5903278 (e5130014) ---[ end trace ef953a249b09c4b0 ]--- Fixing recursive fault but reboot is needed! MBR, Sergei
Hi Sergei, On Wed, Sep 30, 2015 at 12:34 AM, Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> wrote: > On 05/14/2015 04:06 AM, Simon Horman wrote: > >> From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> >> >> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> >> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> >> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> >> --- >> arch/arm/boot/dts/r8a7791.dtsi | 22 ++++++++++++++++++++++ >> 1 file changed, 22 insertions(+) > > > When the USB-DMAC driver is enabled, this causes kernel oops on at least > the R8A7791 Henninger/Porter boards (haven't checked the others yet) with > renesas-devel-20150928-v4.3-rc3 and even earlier tag. The oops can only be > seen with the earlyprintk=serial kernel parameter, otherwise the kernel just > hangs with a blank console. My current kernel on r8a7791/koelsch has CONFIG_RENESAS_USB_DMAC=y and boots fine. renesas-devel-20150928-v4.3-rc3 with shmobile_defconfig + CONFIG_RENESAS_USB_DMAC=y also boots fine. Do I need to enable/disable config options to trigger this? Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
Hello! > Sent: Wednesday, September 30, 2015 7:35 AM > > Hello! > > On 05/14/2015 04:06 AM, Simon Horman wrote: > > > From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> > > > > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> > > Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> > > Signed-off-by: Simon Horman <horms+renesas@verge.net.au> > > --- > > arch/arm/boot/dts/r8a7791.dtsi | 22 ++++++++++++++++++++++ > > 1 file changed, 22 insertions(+) > > When the USB-DMAC driver is enabled, this causes kernel oops on at least > the R8A7791 Henninger/Porter boards (haven't checked the others yet) with > renesas-devel-20150928-v4.3-rc3 and even earlier tag. The oops can only be > seen with the earlyprintk=serial kernel parameter, otherwise the kernel just > hangs with a blank console. > > Unable to handle kernel NULL pointer dereference at virtual address 00000014 > SuperH (H)SCI(F) driver initialized > e6e60000.serial: ttySC0 at MMIO 0xe6e60000 (irq = 105, base_baud = 0) is a scif > pgd = c0004000 > [00000014] *pgd=00000000 > Internal error: Oops: 5 [#1] PREEMPT SMP ARM > Modules linked in: > CPU: 0 PID: 47 Comm: kworker/0:1 Not tainted 4.3.0-rc3-dirty #936 > Hardware name: Generic R8A7791 (Flattened Device Tree) > Workqueue: pm pm_runtime_work > task: ee933100 ti: ee998000 task.ti: ee998000 > PC is at usb_dmac_chan_halt+0x14/0xd0 > LR is at usb_dmac_runtime_suspend+0x2c/0x40 > pc : [<c027f0e0>] lr : [<c027f1c8>] psr: 80000113 > sp : ee999da8 ip : ee999dc0 fp : ee999dbc > r10: ee802400 r9 : c02dcb18 r8 : ee93d810 > r7 : 6bd8a034 r6 : 00000090 r5 : eebd1210 r4 : 00000001 > r3 : 00000000 r2 : 6bd8a034 r1 : 0000012e r0 : eebd1210 > Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none > Control: 10c5387d Table: 4000406a DAC: 00000051 > Process kworker/0:1 (pid: 47, stack limit = 0xee998210) > Stack: (0xee999da8 to 0xee99a000) > 9da0: 00000001 eebdaf50 ee999ddc ee999dc0 c027f1c8 c027f0d8 > 9dc0: c027f19c ee93d810 c02ddfc4 00000000 ee999dec ee999de0 c02d60e0 c027f1a8 > 9de0: ee999dfc ee999df0 c02dcba0 c02d60b8 ee999e34 ee999e00 c02de040 c02dcb24 > 9e00: 6bd8a034 00000000 00000000 ee93d810 c02ddfc4 00000000 0000000a 00000000 > 9e20: 00000003 00000008 ee999e4c ee999e38 c02d78cc c02ddfd0 ee93d810 c02ddfc4 > 9e40: ee999e64 ee999e50 c02d7964 c02d78a0 ee93d810 c02ddfc4 ee999eb4 ee999e68 > 9e60: c02d7ee4 c02d7900 ee999e84 ee999e80 c0531e44 c0045518 ee999eb4 ee999e88 > 9e80: c005a1d8 c0531e20 00000000 ee93d810 00000000 00000002 c0726100 eefc9700 > 9ea0: 00000000 00000000 ee999ed4 ee999eb8 c02d813c c02d7cd0 00000000 ee93d8b8 > 9ec0: ee93d874 eefc3700 ee999eec ee999ed8 c02d8c84 c02d80d0 ee938000 ee93d8b8 > 9ee0: ee999f2c ee999ef0 c003c13c c02d8c28 ee999f14 ee999f00 c004827c c0048174 > 9f00: 00000000 ee938000 eefc3700 eefc3714 c0726100 ee938018 00000008 00000000 > 9f20: ee999f5c ee999f30 c003c554 c003bf90 ee933100 ee9065c0 00000000 ee938000 > 9f40: c003c2c0 00000000 00000000 00000000 ee999fac ee999f60 c0040e24 c003c2cc > 9f60: fffefffa 00000000 febbfffa ee938000 00000000 00000000 ee999f78 ee999f78 > 9f80: 00000000 00000000 ee999f88 ee999f88 ee9065c0 c0040d34 00000000 00000000 > 9fa0: 00000000 ee999fb0 c00105d8 c0040d40 00000000 00000000 00000000 00000000 > 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 ddffddfa dff45ff7 > Backtrace: > [<c027f0cc>] (usb_dmac_chan_halt) from [<c027f1c8>] (usb_dmac_runtime_suspend+0) > r5:eebdaf50 r4:00000001 > [<c027f19c>] (usb_dmac_runtime_suspend) from [<c02d60e0>] (pm_generic_runtime_s) > r6:00000000 r5:c02ddfc4 r4:ee93d810 r3:c027f19c > [<c02d60ac>] (pm_generic_runtime_suspend) from [<c02dcba0>] (pm_genpd_default_s) > [<c02dcb18>] (pm_genpd_default_save_state) from [<c02de040>] (pm_genpd_runtime_) > [<c02ddfc4>] (pm_genpd_runtime_suspend) from [<c02d78cc>] (__rpm_callback+0x38/) > r10:00000008 r9:00000003 r8:00000000 r7:0000000a r6:00000000 r5:c02ddfc4 > r4:ee93d810 > [<c02d7894>] (__rpm_callback) from [<c02d7964>] (rpm_callback+0x70/0x88) > r5:c02ddfc4 r4:ee93d810 > [<c02d78f4>] (rpm_callback) from [<c02d7ee4>] (rpm_suspend+0x220/0x38c) > r5:c02ddfc4 r4:ee93d810 > [<c02d7cc4>] (rpm_suspend) from [<c02d813c>] (rpm_idle+0x78/0x128) > r10:00000000 r9:00000000 r8:eefc9700 r7:c0726100 r6:00000002 r5:00000000 > r4:ee93d810 I'm not sure but I am guessing this issue related runtime PM? (suspend) I checked the usb-dmac driver roughly, and if the usb_dmac_runtime_suspend() is called before usb_dmac_chan_probe() runs, it might happen because dmac->iomem is NULL. What do you think? Best regards, Yoshihiro Shimoda > [<c02d80c4>] (rpm_idle) from [<c02d8c84>] (pm_runtime_work+0x68/0x94) > r6:eefc3700 r5:ee93d874 r4:ee93d8b8 r3:00000000 > [<c02d8c1c>] (pm_runtime_work) from [<c003c13c>] (process_one_work+0x1b8/0x308) > r5:ee93d8b8 r4:ee938000 > [<c003bf84>] (process_one_work) from [<c003c554>] (worker_thread+0x294/0x408) > r10:00000000 r9:00000008 r8:ee938018 r7:c0726100 r6:eefc3714 r5:eefc3700 > r4:ee938000 > [<c003c2c0>] (worker_thread) from [<c0040e24>] (kthread+0xf0/0x104) > r10:00000000 r9:00000000 r8:00000000 r7:c003c2c0 r6:ee938000 r5:00000000 > r4:ee9065c0 r3:ee933100 > [<c0040d34>] (kthread) from [<c00105d8>] (ret_from_fork+0x14/0x3c) > r7:00000000 r6:00000000 r5:c0040d34 r4:ee9065c0 > Code: e92dd830 e24cb004 e590306c e1a05000 (e5934014) > console [ttySC0] enabled > console [ttySC0] enabled > bootconsole [earlycon0] disabled > bootconsole [earlycon0] disabled > [drm] Initialized drm 1.1.0 20060810 > ---[ end trace ef953a249b09c4af ]--- > Unable to handle kernel paging request at virtual address ffffffec > pgd = c0004000 > [ffffffec] *pgd=6f7fd861, *pte=00000000, *ppte=00000000 > Internal error: Oops: 37 [#2] PREEMPT SMP ARM > Modules linked in: > CPU: 0 PID: 47 Comm: kworker/0:1 Tainted: G D 4.3.0-rc3-dirty #936 > Hardware name: Generic R8A7791 (Flattened Device Tree) > task: ee933100 ti: ee998000 task.ti: ee998000 > PC is at kthread_data+0x10/0x18 > LR is at wq_worker_sleeping+0x14/0xd8 > pc : [<c0041438>] lr : [<c003cbb4>] psr: 00000193 > sp : ee999b08 ip : ee999b18 fp : ee999b14 > r10: ee933320 r9 : c0650b95 r8 : c052ea2c > r7 : ee9333a8 r6 : 00000000 r5 : eefc3b80 r4 : 00000000 > r3 : 00000000 r2 : ac9a9d49 r1 : 00000000 r0 : ee933100 > Flags: nzcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none > Control: 10c5387d Table: 4000406a DAC: 00000051 > Process kworker/0:1 (pid: 47, stack limit = 0xee998210) > Stack: (0xee999b08 to 0xee99a000) > 9b00: ee999b2c ee999b18 c003cbb4 c0041434 0420806c ee933100 > 9b20: ee999b6c ee999b30 c052e428 c003cbac c001296c c001353c 00000000 c0013ed4 > 9b40: ee999b64 ee933100 ee999b88 ee99994c c027f0e0 00000001 c0650b95 ee933320 > 9b60: ee999b7c ee999b70 c052ea2c c052e350 ee999ba4 ee999b80 c0029a48 c052e998 > 9b80: ee999bf2 c027f0e0 ee999b88 ee999b88 c0026f30 c027f0e0 ee999c24 ee999ba8 > 9ba0: c0013ed4 c002921c ee998210 0000000b ee999bd4 c0650b8d 60000113 00000000 > 9bc0: 65650dcb 64643239 20303338 63343265 34303062 39356520 36303330 31652063 > 9be0: 30353061 28203030 33393565 34313034 c0002029 c009c594 c0650dcb 00000014 > 9c00: 00000005 00000000 ee999d58 00000000 c02dcb18 00000005 ee999c3c ee999c28 > 9c20: c00212b0 c0013b24 ee999d58 ee933100 ee999c8c ee999c40 c001cd58 c0021260 > 9c40: c065a8e2 ef5cf060 ee999c84 ee999c58 c001296c c001353c 00000000 c00a42a8 > 9c60: ee999c84 00000005 00000014 c0729fa4 00000005 ee93d810 c02dcb18 ee802400 > 9c80: ee999cac ee999c90 c001ce7c c001cab0 00000005 00000014 c0729fa4 ee999d58 > 9ca0: ee999d54 ee999cb0 c000a2bc c001ce64 ee999d3c ee999cc0 c00a42bc c001f4c0 > 9cc0: 00000141 fec334d1 effd3bb9 d17b5fc0 00000000 ee8333fc ee999cfc ee999ce8 > 9ce0: ee999cfc fffffffa 00000001 c07246ae ee999d1c ee999d00 c0013554 c0012904 > 9d00: c0012928 00000000 ee999da8 00000000 ee999d4c ee999d20 c001296c c001353c > 9d20: 00000000 c052adc8 ee999d4c ee999d38 c004817c c005d66c c027f0e0 80000113 > 9d40: ffffffff ee999d8c ee999dbc ee999d58 c0014620 c000a28c eebd1210 0000012e > 9d60: 6bd8a034 00000000 00000001 eebd1210 00000090 6bd8a034 ee93d810 c02dcb18 > 9d80: ee802400 ee999dbc ee999dc0 ee999da8 c027f1c8 c027f0e0 80000113 ffffffff > 9da0: 00000051 c052b038 00000001 eebdaf50 ee999ddc ee999dc0 c027f1c8 c027f0d8 > 9dc0: c027f19c ee93d810 c02ddfc4 00000000 ee999dec ee999de0 c02d60e0 c027f1a8 > 9de0: ee999dfc ee999df0 c02dcba0 c02d60b8 ee999e34 ee999e00 c02de040 c02dcb24 > 9e00: 6bd8a034 00000000 00000000 ee93d810 c02ddfc4 00000000 0000000a 00000000 > 9e20: 00000003 00000008 ee999e4c ee999e38 c02d78cc c02ddfd0 ee93d810 c02ddfc4 > 9e40: ee999e64 ee999e50 c02d7964 c02d78a0 ee93d810 c02ddfc4 ee999eb4 ee999e68 > 9e60: c02d7ee4 c02d7900 ee999e84 ee999e80 c0531e44 c0045518 ee999eb4 ee999e88 > 9e80: c005a1d8 c0531e20 00000000 ee93d810 00000000 00000002 c0726100 eefc9700 > 9ea0: 00000000 00000000 ee999ed4 ee999eb8 c02d813c c02d7cd0 00000000 ee93d8b8 > 9ec0: ee93d874 eefc3700 ee999eec ee999ed8 c02d8c84 c02d80d0 ee938000 ee93d8b8 > 9ee0: ee999f2c ee999ef0 c003c13c c02d8c28 ee999f14 ee999f00 c004827c c0048174 > 9f00: 00000000 ee938000 eefc3700 eefc3714 c0726100 ee938018 00000008 00000000 > 9f20: ee999f5c ee999f30 c003c554 c003bf90 ee933100 ee9065c0 00000000 ee938000 > 9f40: c003c2c0 00000000 00000000 00000000 ee999fac ee999f60 c0040e24 c003c2cc > 9f60: fffefffa 00000000 febbfffa ee938000 00000000 00000000 ee999f78 ee999f78 > 9f80: 00000001 00010001 ee999f88 ee999f88 ee9065c0 c0040d34 00000000 00000000 > 9fa0: 00000000 ee999fb0 c00105d8 c0040d40 00000000 00000000 00000000 00000000 > 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 ddffddfa dff45ff7 > Backtrace: > [<c0041428>] (kthread_data) from [<c003cbb4>] (wq_worker_sleeping+0x14/0xd8) > [<c003cba0>] (wq_worker_sleeping) from [<c052e428>] (__schedule+0xe4/0x4b0) > r4:ee933100 r3:0420806c > [<c052e344>] (__schedule) from [<c052ea2c>] (schedule+0xa0/0xc4) > r10:ee933320 r9:c0650b95 r8:00000001 r7:c027f0e0 r6:ee99994c r5:ee999b88 > r4:ee933100 > [<c052e98c>] (schedule) from [<c0029a48>] (do_exit+0x838/0x880) > [<c0029210>] (do_exit) from [<c0013ed4>] (die+0x3bc/0x438) > r7:c027f0e0 > [<c0013b18>] (die) from [<c00212b0>] (__do_kernel_fault.part.0+0x5c/0xdac) > r10:00000005 r9:c02dcb18 r8:00000000 r7:ee999d58 r6:00000000 r5:00000005 > r4:00000014 > [<c0021254>] (__do_kernel_fault.part.0) from [<c001cd58>] (do_page_fault+0x2b4/) > r7:ee933100 r3:ee999d58 > [<c001caa4>] (do_page_fault) from [<c001ce7c>] (do_translation_fault+0x24/0xb4) > r10:ee802400 r9:c02dcb18 r8:ee93d810 r7:00000005 r6:c0729fa4 r5:00000014 > r4:00000005 > [<c001ce58>] (do_translation_fault) from [<c000a2bc>] (do_DataAbort+0x3c/0xbc) > r7:ee999d58 r6:c0729fa4 r5:00000014 r4:00000005 > [<c000a280>] (do_DataAbort) from [<c0014620>] (__dabt_svc+0x40/0x60) > Exception stack(0xee999d58 to 0xee999da0) > 9d40: eebd1210 0000012e > 9d60: 6bd8a034 00000000 00000001 eebd1210 00000090 6bd8a034 ee93d810 c02dcb18 > 9d80: ee802400 ee999dbc ee999dc0 ee999da8 c027f1c8 c027f0e0 80000113 ffffffff > r7:ee999d8c r6:ffffffff r5:80000113 r4:c027f0e0 > [<c027f0cc>] (usb_dmac_chan_halt) from [<c027f1c8>] (usb_dmac_runtime_suspend+0) > r5:eebdaf50 r4:00000001 > [<c027f19c>] (usb_dmac_runtime_suspend) from [<c02d60e0>] (pm_generic_runtime_s) > r6:00000000 r5:c02ddfc4 r4:ee93d810 r3:c027f19c > [<c02d60ac>] (pm_generic_runtime_suspend) from [<c02dcba0>] (pm_genpd_default_s) > [<c02dcb18>] (pm_genpd_default_save_state) from [<c02de040>] (pm_genpd_runtime_) > [<c02ddfc4>] (pm_genpd_runtime_suspend) from [<c02d78cc>] (__rpm_callback+0x38/) > r10:00000008 r9:00000003 r8:00000000 r7:0000000a r6:00000000 r5:c02ddfc4 > r4:ee93d810 > [<c02d7894>] (__rpm_callback) from [<c02d7964>] (rpm_callback+0x70/0x88) > r5:c02ddfc4 r4:ee93d810 > [<c02d78f4>] (rpm_callback) from [<c02d7ee4>] (rpm_suspend+0x220/0x38c) > r5:c02ddfc4 r4:ee93d810 > [<c02d7cc4>] (rpm_suspend) from [<c02d813c>] (rpm_idle+0x78/0x128) > r10:00000000 r9:00000000 r8:eefc9700 r7:c0726100 r6:00000002 r5:00000000 > r4:ee93d810 > [<c02d80c4>] (rpm_idle) from [<c02d8c84>] (pm_runtime_work+0x68/0x94) > r6:eefc3700 r5:ee93d874 r4:ee93d8b8 r3:00000000 > [<c02d8c1c>] (pm_runtime_work) from [<c003c13c>] (process_one_work+0x1b8/0x308) > r5:ee93d8b8 r4:ee938000 > [<c003bf84>] (process_one_work) from [<c003c554>] (worker_thread+0x294/0x408) > r10:00000000 r9:00000008 r8:ee938018 r7:c0726100 r6:eefc3714 r5:eefc3700 > r4:ee938000 > [<c003c2c0>] (worker_thread) from [<c0040e24>] (kthread+0xf0/0x104) > r10:00000000 r9:00000000 r8:00000000 r7:c003c2c0 r6:ee938000 r5:00000000 > r4:ee9065c0 r3:ee933100 > [<c0040d34>] (kthread) from [<c00105d8>] (ret_from_fork+0x14/0x3c) > r7:00000000 r6:00000000 r5:c0040d34 r4:ee9065c0 > Code: e1a0c00d e92dd800 e24cb004 e5903278 (e5130014) > ---[ end trace ef953a249b09c4b0 ]--- > Fixing recursive fault but reboot is needed! > > MBR, Sergei
On 09/30/2015 09:44 AM, Geert Uytterhoeven wrote: >>> From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> >>> >>> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> >>> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> >>> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> >>> --- >>> arch/arm/boot/dts/r8a7791.dtsi | 22 ++++++++++++++++++++++ >>> 1 file changed, 22 insertions(+) >> When the USB-DMAC driver is enabled, this causes kernel oops on at least >> the R8A7791 Henninger/Porter boards (haven't checked the others yet) with >> renesas-devel-20150928-v4.3-rc3 and even earlier tag. The oops can only be >> seen with the earlyprintk=serial kernel parameter, otherwise the kernel just >> hangs with a blank console. > > My current kernel on r8a7791/koelsch has CONFIG_RENESAS_USB_DMAC=y and boots > fine. > > renesas-devel-20150928-v4.3-rc3 with shmobile_defconfig + > CONFIG_RENESAS_USB_DMAC=y also boots fine. Indeed, I was able to boot it all the way on Henninger. > Do I need to enable/disable config options to trigger this? It appears so. I just don't know what -- the diff between my .config and shmobile_defconfig is 150+ hunks. :-( > Gr{oetje,eeting}s, > > Geert MBR, Sergei
Hi Sergei, On Wed, Sep 30, 2015 at 10:10 PM, Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> wrote: > On 09/30/2015 09:44 AM, Geert Uytterhoeven wrote: >>>> From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> >>>> >>>> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> >>>> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> >>>> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> >>>> --- >>>> arch/arm/boot/dts/r8a7791.dtsi | 22 ++++++++++++++++++++++ >>>> 1 file changed, 22 insertions(+) > >>> When the USB-DMAC driver is enabled, this causes kernel oops on at >>> least >>> the R8A7791 Henninger/Porter boards (haven't checked the others yet) with >>> renesas-devel-20150928-v4.3-rc3 and even earlier tag. The oops can only >>> be >>> seen with the earlyprintk=serial kernel parameter, otherwise the kernel >>> just >>> hangs with a blank console. >> >> My current kernel on r8a7791/koelsch has CONFIG_RENESAS_USB_DMAC=y and >> boots >> fine. >> >> renesas-devel-20150928-v4.3-rc3 with shmobile_defconfig + >> CONFIG_RENESAS_USB_DMAC=y also boots fine. > > Indeed, I was able to boot it all the way on Henninger. > >> Do I need to enable/disable config options to trigger this? > > It appears so. I just don't know what -- the diff between my .config and > shmobile_defconfig is 150+ hunks. :-( Can you please send me your .config by private email? Thanks! Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
On 09/30/2015 11:13 PM, Geert Uytterhoeven wrote: >>>>> From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> >>>>> >>>>> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> >>>>> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> >>>>> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> >>>>> --- >>>>> arch/arm/boot/dts/r8a7791.dtsi | 22 ++++++++++++++++++++++ >>>>> 1 file changed, 22 insertions(+) >> >>>> When the USB-DMAC driver is enabled, this causes kernel oops on at >>>> least >>>> the R8A7791 Henninger/Porter boards (haven't checked the others yet) with >>>> renesas-devel-20150928-v4.3-rc3 and even earlier tag. The oops can only >>>> be >>>> seen with the earlyprintk=serial kernel parameter, otherwise the kernel >>>> just >>>> hangs with a blank console. >>> >>> My current kernel on r8a7791/koelsch has CONFIG_RENESAS_USB_DMAC=y and >>> boots >>> fine. >>> >>> renesas-devel-20150928-v4.3-rc3 with shmobile_defconfig + >>> CONFIG_RENESAS_USB_DMAC=y also boots fine. >> >> Indeed, I was able to boot it all the way on Henninger. >> >>> Do I need to enable/disable config options to trigger this? >> >> It appears so. I just don't know what -- the diff between my .config and >> shmobile_defconfig is 150+ hunks. :-( OK, my shot in the dark proved helpful: it's the kernel preemption mode -- shmobile_defconfig has CONFIG_PREEMPT_NONE, my .config has CONFIG_PREEMPT! > Can you please send me your .config by private email? OK. > Thanks! > > Gr{oetje,eeting}s, MBR, Sergei
Hi Shimoda-san, On Wed, Sep 30, 2015 at 11:06 AM, Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> wrote: >> Sent: Wednesday, September 30, 2015 7:35 AM >> When the USB-DMAC driver is enabled, this causes kernel oops on at least >> the R8A7791 Henninger/Porter boards (haven't checked the others yet) with >> renesas-devel-20150928-v4.3-rc3 and even earlier tag. The oops can only be >> seen with the earlyprintk=serial kernel parameter, otherwise the kernel just >> hangs with a blank console. >> >> Unable to handle kernel NULL pointer dereference at virtual address 00000014 >> [<c027f0cc>] (usb_dmac_chan_halt) from [<c027f1c8>] (usb_dmac_runtime_suspend+0) >> r5:eebdaf50 r4:00000001 >> [<c027f19c>] (usb_dmac_runtime_suspend) from [<c02d60e0>] (pm_generic_runtime_s) >> r6:00000000 r5:c02ddfc4 r4:ee93d810 r3:c027f19c > I'm not sure but I am guessing this issue related runtime PM? (suspend) > I checked the usb-dmac driver roughly, and if the usb_dmac_runtime_suspend() > is called before usb_dmac_chan_probe() runs, it might happen because dmac->iomem is NULL. That's exactly what's happening. Reproduced with CONFIG_PREEMPT=y (thanks Sergei), and patch sent. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
Hi Olof, Hi Kevin, Hi Arnd, Please consider these Renesas ARM based SoC DT updates for v4.2. The following changes since commit b787f68c36d49bb1d9236f403813641efa74a031: Linux 4.1-rc1 (2015-04-26 17:59:10 -0700) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git tags/renesas-dt-for-v4.2 for you to fetch changes up to 7706993e2deb75022dbcfc3043890aa1a0020189: ARM: shmobile: r8a7791: Enable DMA for HSUSB (2015-05-12 08:55:16 +0900) ---------------------------------------------------------------- Renesas ARM Based SoC DT Updates for v4.2 * Enable DMA for HSUSB on r8a7790 and r8a7791 SoCs * Configure the HOME key as wake-up source on kzm9g board * Use generic names for device nodes on SH Mobile SoCs and boards * Add "nor-jedec" compatible value to SH Mobile boards * Add IRQC clock to r8a73a4, r8a779* SoCs * Remove MSIOF address from r8a7790 and r8a7791 SoCs ---------------------------------------------------------------- Geert Uytterhoeven (25): ARM: shmobile: r8a7740 dtsi: Fix SCIFB naming ARM: shmobile: sh73a0 dtsi: Fix SCIFB naming ARM: shmobile: r8a73a4: Add IRQC clock to device tree ARM: shmobile: r8a7790: Add IRQC clock to device tree ARM: shmobile: r8a7791: Add IRQC clock to device tree ARM: shmobile: r8a7794: Add IRQC clock to device tree ARM: shmobile: r8a7740 dtsi: Use generic names for device nodes ARM: shmobile: r8a7778 dtsi: Use generic names for device nodes ARM: shmobile: r8a7779 dtsi: Use generic names for device nodes ARM: shmobile: r8a7790 dtsi: Use generic names for device nodes ARM: shmobile: r8a7791 dtsi: Use generic names for device nodes ARM: shmobile: sh73a0 dtsi: Use generic names for device nodes ARM: shmobile: ape6evm dts: Use generic names for device nodes ARM: shmobile: kzm9d dts: Use generic names for device nodes ARM: shmobile: marzen dts: Use generic names for device nodes ARM: shmobile: armadillo800eva dts: Use generic names for device nodes ARM: shmobile: henninger dts: Add "nor-jedec" compatible value ARM: shmobile: bockw-reference dts: Add "nor-jedec" compatible value ARM: shmobile: lager dts: Add "nor-jedec" compatible value ARM: shmobile: bockw dts: Add "nor-jedec" compatible value ARM: shmobile: koelsch dts: Add "nor-jedec" compatible value ARM: shmobile: bockw dts: Use generic names for device nodes ARM: shmobile: lager dts: Use generic names for device nodes ARM: shmobile: koelsch dts: Use generic names for device nodes ARM: shmobile: kzm9g dts: Configure the HOME key as wake-up source Ryo Kataoka (2): ARM: shmobile: r8a7790: Remove MSIOF address from device tree ARM: shmobile: r8a7791: Remove MSIOF address from device tree Yoshihiro Shimoda (4): ARM: shmobile: r8a7790: add USB-DMAC device nodes ARM: shmobile: r8a7790: Enable DMA for HSUSB ARM: shmobile: r8a7791: add USB-DMAC device nodes ARM: shmobile: r8a7791: Enable DMA for HSUSB Documentation/devicetree/bindings/spi/sh-msiof.txt | 2 +- arch/arm/boot/dts/emev2-kzm9d.dts | 4 +- arch/arm/boot/dts/r8a73a4-ape6evm.dts | 2 +- arch/arm/boot/dts/r8a73a4.dtsi | 11 ++++-- arch/arm/boot/dts/r8a7740-armadillo800eva.dts | 2 +- arch/arm/boot/dts/r8a7740.dtsi | 10 ++--- arch/arm/boot/dts/r8a7778-bockw-reference.dts | 2 +- arch/arm/boot/dts/r8a7778-bockw.dts | 4 +- arch/arm/boot/dts/r8a7778.dtsi | 2 +- arch/arm/boot/dts/r8a7779-marzen.dts | 6 +-- arch/arm/boot/dts/r8a7779.dtsi | 2 +- arch/arm/boot/dts/r8a7790-lager.dts | 4 +- arch/arm/boot/dts/r8a7790.dtsi | 44 +++++++++++++++++++--- arch/arm/boot/dts/r8a7791-henninger.dts | 2 +- arch/arm/boot/dts/r8a7791-koelsch.dts | 4 +- arch/arm/boot/dts/r8a7791.dtsi | 42 +++++++++++++++++++-- arch/arm/boot/dts/r8a7794.dtsi | 9 +++++ arch/arm/boot/dts/sh73a0-kzm9g.dts | 1 + arch/arm/boot/dts/sh73a0.dtsi | 10 ++--- include/dt-bindings/clock/r8a73a4-clock.h | 1 + include/dt-bindings/clock/r8a7790-clock.h | 3 ++ include/dt-bindings/clock/r8a7791-clock.h | 3 ++ include/dt-bindings/clock/r8a7794-clock.h | 3 ++ 23 files changed, 132 insertions(+), 41 deletions(-)