05:39 <q4a> hi. I would like to test panvk on rk3288 (32 bit with Mali-T760 MP4). I installed mesa from git and have installed libvulkan_panfrost.so in /usr/lib/arm-linux-gnueabihf. But every time when I run vkcube or vulkaninfo it uses llvmpipe. How can I switch to panvk?

05:41 <HdkR> q4a: You need to install the ICD json file to /usr/share/vulkan.icd or something as well

05:42 <HdkR> and also you probably need an environment variable

05:42 <HdkR> `export PAN_I_WANT_A_BROKEN_VULKAN_DRIVER=1`

06:15 <q4a> HdkR: thatnks. I'm using ubuntu 20.04 and this is my /usr/share/vulkan/icd.d/panfrost_icd.armv7l.json : https://pastebin.ubuntu.com/p/qCQHtvNVvF/

06:15 <q4a> export PAN_I_WANT_A_BROKEN_VULKAN_DRIVER=1 - looks working.

06:16 <q4a> VULKANINFO now has "Devices: count = 6": 3 for Mali-T760 (Panfrost) and 3 for llvmpipe (LLVM 13.0.1, 128 bits)

06:16 <q4a> https://pastebin.ubuntu.com/p/Vvcgffy2DY/

06:17 <HdkR> Smells like the loader is managing to pick up drivers in multiple locations

06:18 <HdkR> Maybe `/usr/` `/usr/local/` and some cwdir environment variable magic.

06:18 <q4a> Now simple vk app ( https://github.com/q4a/vkcube ) crashes with (panvk), but it was working with llvmpipe. So I think, that I'm using last panvk now

06:20 <q4a> is theare any simple app that working with panvk or ony some conformance tests working?

06:21 <HdkR> Probably!

09:24 <q4a> I created repo with 4 simple vulkan apps: https://github.com/q4a/VulkanHelloTriangle Here is results: https://github.com/q4a/VulkanHelloTriangle/wiki

09:26 <q4a> Looks like only simple checking `vkEnumerateInstanceExtensionProperties` is working booth in llvmpipe and panvk

09:27 <q4a> "vktri" works with llvmpipe but fails with `Segmentation fault` using panvk

09:37 <q4a> vkcubepp from https://packages.ubuntu.com/focal/vulkan-tools works llvmpipe and panvk, but vkcube getting `Segmentation fault` with llvmpipe and run fine with panvk

12:48 <alyssa> You wanted a broken Vulkan driver, you got a broken Vulkan driver :)

18:59 <macc24> alyssa: pleaaaaaaaaaaaaaaaaase make that env var break panvk in future when it's usable

19:08 <urja> lmao yes

19:08 <urja> (she's not around tho)

19:27 <q4a> can somebody test build and run triangle with panvk from https://github.com/q4a/vulkan_hello_triangle/tree/master/01-vulkan-tutorial/15_hello_triangle ?

19:27 <q4a> I'm getting good triangle with llvmpipe and black screen with panvk

19:32 <HdkR> Sounds like expected behaviour to me

19:38 <q4a> but example with vertex_buffer ( https://github.com/q4a/vulkan_hello_triangle/tree/master/01-vulkan-tutorial/19_vertex_buffer ) works fine with llvmpipe and with panvk. Is that expected?

19:54 <HdkR> q4a: The environment variable to enable the driver sets up expectations that anything and everything can be broken