i.MX ProcessorsのトピックRe: GPU driver crash on i.MX8M-Mini with 4GB RAM

GPU driver crash on i.MX8M-Mini with 4GB RAM

felixradensky — Tue, 11 Jun 2019 10:17:55 GMT

Hello,

We're experiencing GPU driver (galcore) crash on our i.MX8M-Mini board with 4GB of RAM running latest NXP BSP 4.14.98-2.0.1. Restricting memory size to 3GB by passing mem=3G kernel command line parameter fixes the problem. Is this a known problem ?

Felix.

Re: GPU driver crash on i.MX8M-Mini with 4GB RAM

Yuri — Fri, 14 Jun 2019 11:26:49 GMT

Hello,

According to section 2.1.2 (Cortex-A53 Memory Map) of i.MX 8M Mini Reference Manual,

Rev. 1, 03/2019, only 3072MB of DDR Memory address area are available for all modules,

including GPU. But address range, starting from 0x1_0000_0000 is accessible only

by the ARM Cores. This provides problem for NXP Linux, in particular for GPU DMA.

Have a great day,
Yuri

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Re: GPU driver crash on i.MX8M-Mini with 4GB RAM

felixradensky — Sat, 15 Jun 2019 08:20:04 GMT

Hi Yuri

The following patch: linux-imx - i.MX Linux kernel fixed GPU memory access for i.MX8M but missed to do the same for i.MX8M Mini. Adding check for "fsl,imx8mm-gpu" fixes the crash on Mini.

Felix.

Re: GPU driver crash on i.MX8M-Mini with 4GB RAM

r_trivedi123 — Mon, 25 Sep 2023 14:35:47 GMT

Hi, Even this issues still persist in kernel v5.15.71 in NXP BSP - kirkstone branch.

We faced it with one of our customer for sway compositor.

[   27.464790] etnaviv-gpu 38000000.gpu: AXI bus error
[   27.469745] etnaviv-gpu 38000000.gpu: MMU fault status 0x00000000
[   27.970450] etnaviv-gpu 38000000.gpu: recover hung GPU!

However we were able to resolve the issue and now its running smooth with the weston and sway compositor with 4GiB RAM usage.

As this was done for the customer we are unable to share the details, in case of support please reach-out to us on rutvij.trivedi@siliconsignals.io or visit www.siliconsignals.io.

--
BR