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--- orangepi_800 [2024/02/18 04:20] – [Next Steps] austin
+++ orangepi_800 [2024/09/22 22:08] (current) – external edit 127.0.0.1
@@ Line 131: / Line 131: @@
 </code>
-===== Next Steps =====
+===== Kernel... =====
-New kernel existing one doesn't have required settings for GPU!!! Really this is the kernel from vendor supplied image.  It's really old, 5.10 so working on a 6.6 kernel for this.
+Existing kernel doesn't have required settings for GPU!!! Really this is the kernel from vendor supplied image.  It's really old, 5.10 so working an updated kernel.
 <code>
 # CONFIG_DRM_PANFROST is not set
@@ Line 139: / Line 139: @@
 The reason it is not set is the code is broken.
-[https://github.com/orangepi-xunlong/linux-orangepi/tree/orange-pi-5.10-rk3399/arch/arm64/boot/dts/rockchip|Source]
+[[https://github.com/orangepi-xunlong/linux-orangepi/tree/orange-pi-5.10-rk3399/arch/arm64/boot/dts/rockchip|Source]]
 <code>
 drivers/gpu/drm/panfrost/panfrost_mmu.c:359:10: error: 'const struct iommu_flush_ops' has no member named 'tlb_flush_leave'; did you mean'tlb_flush_all'?
@@ Line 150: / Line 150: @@
 };
 </code>
+It compiles now, but I wonder if I should remove this function as well(I guess I'll do some testing and decide):
+<code>
+static void mmu_tlb_flush_leaf(unsigned long iova, size_t size, size_t granule,
+			       void *cookie)
+{
+	mmu_tlb_sync_context(cookie);
+}
+</code>
+The module compiles and loads but isn't really functional now.
+The orangepi ubuntu based image uses this [[https://github.com/orangepi-xunlong/linux-orangepi/tree/orange-pi-5.18|kernel(5.18)]].  Its slightly newer.  I couldn't get it to work with module compression(enabled with XZ compression in the image).  It threw an error whenever trying to load a module.  Which is really weird as I initially just copied the kernel and modules from the image and it works fine with their image.  Something must prevent this from working with the openrc-stage3 from Gentoo but I didn't dig real deep into this.  After recompiling without module compression it works other than rfkill.ko appears to hang when loading on boot (required by sprdwl_ng) but eventually completes loading and works fine so I've switched to this kernel for the time being.
+Found more recent [[https://github.com/zhangn1985/linux-stable|source(6.8-rc2)]]. It compiles and I get video output but it hangs on first daemon load.  This is going to require some more work.
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