[PATCH v3 0/3] Add Mali-G31 GPU support for RZ/G2L SoC

[Geert Uytterhoeven]

From: Biju Das <biju.das.jz at bp.renesas.com>

RZ/G2L SoC embeds Mali-G31 bifrost GPU.
This patch series aims to add support for the same

It is tested with latest drm-misc-next + mesa 21.3.0 + 
out of tree patch for (du + DSI) + 
platform specific mesa configuration for RZ/G2L.

Tested the kmscube application.

test logs:-
root at smarc-rzg2l:~# kmscube
Using display 0xaaaadb6e7d30 with EGL version 1.4
===================================
EGL information:
  version: "1.4"
  vendor: "Mesa Project"
.....
===================================
OpenGL ES 2.x information:
  version: "OpenGL ES 3.1 Mesa 21.3.0"
  shading language version: "OpenGL ES GLSL ES 3.10"
  vendor: "Panfrost"
  renderer: "Mali-G31 (Panfrost)"
  ....
===================================
^C

root at smarc-rzg2l:~# cat /proc/interrupts | grep panfrost
 82:     587287          0     GICv3 186 Level     panfrost-job
 83:          2          0     GICv3 187 Level     panfrost-mmu
 84:          8          0     GICv3 185 Level     panfrost-gpu

root at smarc-rzg2l:~# cat /sys/class/devfreq/11840000.gpu/trans_stat
     From  :   To
           :  50000000  62500000 100000000 125000000 200000000 250000000 400000000 500000000   time(ms)
*  50000000:         0         0         0         0         0         0         0         0        72
   62500000:         0         0         0         0         0         0         0         0         0
  100000000:         0         0         0         0         0         0         0         0         0
  125000000:         0         0         0         0         0         0         0         1        68
  200000000:         0         0         0         0         0         0         0         1        68
  250000000:         1         0         0         0         0         0         0         0        84
  400000000:         0         0         0         0         0         0         0         0         0
  500000000:         0         0         0         1         1         1         0         0       736
Total transition : 6
root at smarc-rzg2l:~# kmscube
Using display 0xaaaaf7a421b0 with EGL version 1.4
===================================
EGL information:
  version: "1.4"
  vendor: "Mesa Project"
  .....
===================================
OpenGL ES 2.x information:
  version: "OpenGL ES 3.1 Mesa 21.3.0"
  shading language version: "OpenGL ES GLSL ES 3.10"
  vendor: "Panfrost"
  renderer: "Mali-G31 (Panfrost)"
  ......
===================================

root at smarc-rzg2l:~#
root at smarc-rzg2l:~#
root at smarc-rzg2l:~# cat /sys/class/devfreq/11840000.gpu/trans_stat
     From  :   To
           :  50000000  62500000 100000000 125000000 200000000 250000000 400000000 500000000   time(ms)
*  50000000:         0         0         0         0         0         0         0         1       144
   62500000:         0         0         0         0         0         0         0         0         0
  100000000:         0         0         0         0         0         0         0         9       524
  125000000:         0         0         9         0         0         0         0         3      2544
  200000000:         0         0         0        11         0         0         0        46      3304
  250000000:         1         0         0         0        33         0         0         0      7496
  400000000:         0         0         0         0        16        19         0         0      2024
  500000000:         1         0         0         1         8        15        35         0      4032
Total transition : 208

Platform specific mesa configuration patch for RZ/G2L
---------------------
src/gallium/targets/dri/meson.build
+               'rcar-du_dri.so',
src/gallium/targets/dri/target.c
+DEFINE_LOADER_DRM_ENTRYPOINT(rcar_du)

V2->V3:
 * Moved optional clock-names and reset-names to SoC-specific conditional schemas.
 * minimum number of reset for the generic GPU is set to 1.
 * Documented number of clocks, resets, interrupts and interrupt-names in RZ/G2L
   SoC-specific conditional schemas.
 * Updated commit description for patch#3
V1->V2:
 * Removed clock patches from this seies, as it is accepted for 5.17
 * Added Rb tag from Geert
 * Added reset-names required property for RZ/G2L and updated the board dtsi.

Biju Das (3):
  dt-bindings: gpu: mali-bifrost: Document RZ/G2L support
  arm64: dts: renesas: r9a07g044: Add Mali-G31 GPU node
  arm64: dts: renesas: rzg2l-smarc-som: Add vdd core regulator

 .../bindings/gpu/arm,mali-bifrost.yaml        | 45 ++++++++++++-
 arch/arm64/boot/dts/renesas/r9a07g044.dtsi    | 65 +++++++++++++++++++
 .../boot/dts/renesas/rzg2l-smarc-som.dtsi     | 13 ++++
 3 files changed, 121 insertions(+), 2 deletions(-)

-- 
2.17.1