On 9/16/25 12:06 PM, Rain Yang wrote:
Hello everyone,
you're right.
*0x4d810008=1, this register is a write-once register, so it was moved into SM
since imx 6.12.3 release, and latest 6.6.52 release. some document work is still
needed in the future.
Hi Marek,
thanks for your effort to make the i.MX95 GPU upstreamed.
I created one PR to support i.MX95 GPU expcept the multi power domain[1],
but it seemed to be placed in the wrong location. No one responded to it,
so I closed it.
for the suspend/resume issue, the panthor driver works well with 6.12.34
patched with pm_domains operation like you did.
run vkmark->suspend 10min in the 4th console->wakeup in the 4th console.
can you show me your SM version when uboot start,
Build 470, Commit a07928b4 Sep 03 2025 23:43:49
and the G310 firmware version which can be found by search git_sha string.
That would be 50.2 . I now tried 53.0 and I suspect something might have
been fixed there ?
As for the reset via block controller at 0x4d810000, without it, I get
SError, so it seems the reset is still needed.
[ 2.788317] panthor 4d900000.gpu: [drm] clock rate = 800000000
[ 2.795246] panthor 4d900000.gpu: EM: created perf domain
[ 2.801029] Internal error: synchronous external abort:
0000000096000010 [#1] SMP
[ 2.808597] Modules linked in:
[ 2.811658] CPU: 3 UID: 0 PID: 52 Comm: kworker/u24:1 Tainted: G M
6.17.0-rc6-next-20250916-00076-ga73c9babac81-dirty #496
PREEMPT
[ 2.824939] Tainted: [M]=MACHINE_CHECK
[ 2.828684] Hardware name: Board (DT)
[ 2.834770] Workqueue: events_unbound deferred_probe_work_func
[ 2.840601] pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS
BTYPE=--)
[ 2.847545] pc : panthor_hw_init+0x18/0x620
[ 2.851728] lr : panthor_device_init+0x388/0x5e0
[ 2.856333] sp : ffff800082383aa0
[ 2.859643] x29: ffff800082383aa0 x28: 0000000000000000 x27:
0000000000000000
[ 2.866782] x26: ffff000080034c28 x25: 0000000000000000 x24:
0000000000000000
[ 2.873909] x23: ffff00008036f010 x22: ffff000081082638 x21:
ffff00008036f010
[ 2.881033] x20: ffff000081082000 x19: ffff000081082000 x18:
0000000000000801
[ 2.888165] x17: 0000000000000000 x16: 0000000000000100 x15:
0000000000000001
[ 2.895298] x14: 0140000000000000 x13: ffff800083800000 x12:
ffff800083c7ffff
[ 2.902422] x11: 000000004dd80000 x10: 0000000040000000 x9 :
ffff8000809696b8
[ 2.909555] x8 : ffff8000823839a0 x7 : ffff000081082000 x6 :
ffff800082383a50
[ 2.916679] x5 : ffff8000823839d0 x4 : ffff800081beb4d0 x3 :
ffff800081beb000
[ 2.923803] x2 : 0000000000000000 x1 : ffff0000809a90c0 x0 :
ffff800083800000
[ 2.930934] Call trace:
[ 2.933378] panthor_hw_init+0x18/0x620 (P)
[ 2.937555] panthor_device_init+0x388/0x5e0
[ 2.941812] panthor_probe+0x40/0x68
[ 2.945383] platform_probe+0x60/0xa8
[ 2.949040] really_probe+0xc0/0x2b8
[ 2.952611] __driver_probe_device+0x7c/0x120
[ 2.956962] driver_probe_device+0x40/0x180
[ 2.961130] __device_attach_driver+0xb4/0x140
[ 2.965567] bus_for_each_drv+0x88/0xf8
[ 2.969398] __device_attach+0xa0/0x1a0
[ 2.973220] device_initial_probe+0x18/0x30
[ 2.977397] bus_probe_device+0x9c/0xa8
[ 2.981228] deferred_probe_work_func+0x88/0xc8
[ 2.985743] process_one_work+0x158/0x3a8
[ 2.989754] worker_thread+0x2d8/0x410
[ 2.993498] kthread+0x144/0x200
[ 2.996722] ret_from_fork+0x10/0x20
[ 3.000296] Code: a9bb7bfd aa0003e7 910003fd f9430800 (b9400000)
[ 3.006378] ---[ end trace 0000000000000000 ]---
