Re: [PATCH v6 0/6] Allwinner H6 Mali GPU support

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On 21/05/2019 17:10, Clément Péron wrote:
Hi,

The Allwinner H6 has a Mali-T720 MP2 which should be supported by
the new panfrost driver. This series fix two issues and introduce the
dt-bindings but a simple benchmark show that it's still NOT WORKING.

I'm pushing it in case someone want to continue the work.

This has been tested with Mesa3D 19.1.0-RC2 and a GPU bitness patch[1].

One patch is from Icenowy Zheng where I changed the order as required
by Rob Herring[2].

Thanks,
Clement

[1] https://gitlab.freedesktop.org/kszaq/mesa/tree/panfrost_64_32
[2] https://patchwork.kernel.org/patch/10699829/


[  345.204813] panfrost 1800000.gpu: mmu irq status=1
[  345.209617] panfrost 1800000.gpu: Unhandled Page fault in AS0 at VA
0x0000000002400400
[  345.209617] Reason: TODO
[  345.209617] raw fault status: 0x800002C1
[  345.209617] decoded fault status: SLAVE FAULT
[  345.209617] exception type 0xC1: TRANSLATION_FAULT_LEVEL1
[  345.209617] access type 0x2: READ
[  345.209617] source id 0x8000
[  345.729957] panfrost 1800000.gpu: gpu sched timeout, js=0,
status=0x8, head=0x2400400, tail=0x2400400, sched_job=000000009e204de9
[  346.055876] panfrost 1800000.gpu: mmu irq status=1
[  346.060680] panfrost 1800000.gpu: Unhandled Page fault in AS0 at VA
0x0000000002C00A00
[  346.060680] Reason: TODO
[  346.060680] raw fault status: 0x810002C1
[  346.060680] decoded fault status: SLAVE FAULT
[  346.060680] exception type 0xC1: TRANSLATION_FAULT_LEVEL1
[  346.060680] access type 0x2: READ
[  346.060680] source id 0x8100
[  346.561955] panfrost 1800000.gpu: gpu sched timeout, js=1,
status=0x8, head=0x2c00a00, tail=0x2c00a00, sched_job=00000000b55a9a85
[  346.573913] panfrost 1800000.gpu: mmu irq status=1
[  346.578707] panfrost 1800000.gpu: Unhandled Page fault in AS0 at VA
0x0000000002C00B80

FWIW I seem to have reproduced the same behaviour on a different T720 setup, so this may well be more about the GPU than the platform. There doesn't look to be anything obviously wrong with the pagetables, but if I can find some more free time I may have a bit more of a poke around.

Robin.


Change in v5:
  - Remove fix indent

Changes in v4:
  - Add bus_clock probe
  - Fix sanity check in io-pgtable
  - Add vramp-delay
  - Merge all boards into one patch
  - Remove upstreamed Neil A. patch

Change in v3 (Thanks to Maxime Ripard):
  - Reauthor Icenowy for her path

Changes in v2 (Thanks to Maxime Ripard):
  - Drop GPU OPP Table
  - Add clocks and clock-names in required

Clément Péron (5):
   drm: panfrost: add optional bus_clock
   iommu: io-pgtable: fix sanity check for non 48-bit mali iommu
   dt-bindings: gpu: mali-midgard: Add H6 mali gpu compatible
   arm64: dts: allwinner: Add ARM Mali GPU node for H6
   arm64: dts: allwinner: Add mali GPU supply for H6 boards

Icenowy Zheng (1):
   dt-bindings: gpu: add bus clock for Mali Midgard GPUs

  .../bindings/gpu/arm,mali-midgard.txt         | 15 ++++++++++++-
  .../dts/allwinner/sun50i-h6-beelink-gs1.dts   |  6 +++++
  .../dts/allwinner/sun50i-h6-orangepi-3.dts    |  6 +++++
  .../dts/allwinner/sun50i-h6-orangepi.dtsi     |  6 +++++
  .../boot/dts/allwinner/sun50i-h6-pine-h64.dts |  6 +++++
  arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi  | 14 ++++++++++++
  drivers/gpu/drm/panfrost/panfrost_device.c    | 22 +++++++++++++++++++
  drivers/gpu/drm/panfrost/panfrost_device.h    |  1 +
  drivers/iommu/io-pgtable-arm.c                |  2 +-
  9 files changed, 76 insertions(+), 2 deletions(-)




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