if you haven’t, you may want to look at the docs here, if you’re thinking about hardware acceleration next
It still need Linux kernel AMDGPU driver.
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libdrm_amdgpu, i have not looked through all of this as of yet, so you might be way ahead of me here.
this driver is mostly os agnostic
Only its userland part if I am correct. Kernel part is Linux-specific.
libdrm_amdgpu relys on posix ioctls and was created specifically to decouple from hard linux dependency as i understand it, they’d probably upstream haiku specific patches more easily.
This is a list of functions imported from libdrm:
amdgpu_bo_alloc
amdgpu_bo_cpu_map
amdgpu_bo_cpu_unmap
amdgpu_bo_export
amdgpu_bo_free
amdgpu_bo_import
amdgpu_bo_list_create_raw
amdgpu_bo_list_destroy_raw
amdgpu_bo_query_info
amdgpu_bo_set_metadata
amdgpu_bo_va_op
amdgpu_bo_va_op_raw
amdgpu_create_bo_from_user_mem
amdgpu_cs_chunk_fence_info_to_data
amdgpu_cs_chunk_fence_to_dep
amdgpu_cs_create_syncobj
amdgpu_cs_create_syncobj2
amdgpu_cs_ctx_create2
amdgpu_cs_ctx_free
amdgpu_cs_destroy_syncobj
amdgpu_cs_export_syncobj
amdgpu_cs_import_syncobj
amdgpu_cs_query_fence_status
amdgpu_cs_submit_raw2
amdgpu_cs_syncobj_export_sync_file
amdgpu_cs_syncobj_import_sync_file
amdgpu_cs_syncobj_query
amdgpu_cs_syncobj_reset
amdgpu_cs_syncobj_signal
amdgpu_cs_syncobj_timeline_signal
amdgpu_cs_syncobj_timeline_wait
amdgpu_cs_syncobj_transfer
amdgpu_cs_syncobj_wait
amdgpu_cs_wait_fences
amdgpu_device_deinitialize
amdgpu_device_initialize
amdgpu_get_marketing_name
amdgpu_query_buffer_size_alignment
amdgpu_query_firmware_version
amdgpu_query_gds_info
amdgpu_query_gpu_info
amdgpu_query_heap_info
amdgpu_query_hw_ip_info
amdgpu_query_info
amdgpu_query_sensor_info
amdgpu_query_sw_info
amdgpu_read_mm_registers
amdgpu_va_range_alloc
amdgpu_va_range_free
drmCommandWrite // DRM_AMDGPU_INFO
drmFreeDevice
drmFreeDevices
drmFreeVersion
drmGetCap
drmGetDevice2
drmGetDevices2
drmGetVersion
2 Likes
You’re more than welcome to donate hardware to Haiku Inc., just contact them using the details on this page:
https://www.haiku-inc.org/contact
i don’t have enough knowledge of uni posix linux kernel interfaces to really know where those all go. it looks like a lot of work for sure.
John Bridgman is/was involved with the open source driver team at AMD, he posts on phoronix.com
he could probably get a engineer to help etc.
i wish i had 10% of your skills, I’d be in there getting dirty.
the point I was trying to make was that we don’t need to bring all of the mesa open source driver stack mess to haiku.
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It will not help me to make any progress.
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Yeah, I wasn’t sure if you needed any hardware or not so I just linked to the Haiku Inc page on that - if hardware is donated to Haiku Inc other developers can use it too.
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I already have Vulkan compatible Radeon and Intel graphics cards so no attitional hardware is needed for now.
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Current hardware baseline (Mesa 21.2.2/Vulkan 1.2.193/Haiku R1B3):
- Vulkan 1.2.193 conformant 3D hardware
Legacy baseline hardware reference (Vulkan 1.0/Haiku R1B3):
- AMD Radeon HD 2000 series - Y2007
- Intel HD Graphics (Gen 7) series - Y2012
- Nvidia Geforce 8000 series - Y2006
Baseline 3D applications supportable on Haiku:
- Blender 2.93.4
- Drag[en]gine 1.6
- Godot 3.3.3
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With some hacks window output is added. Proper support will need adding Haiku-specific Vulkan extensions for surface and swapchain.
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Can’t wait to see the frames sooner or later go to the moon. 
You are indisputably one of those developers who makes reading this forum an entertainment.
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Glfw3 is what most Vulkan samples/tutorials use (over 90%), including my cross platform engine, so I guess a combo of lavapipe/glfw3 is needed for most tutorials on the net to work with a simple recompilation and no code changes. That would be amazing to have. Glfw3 supports Vulkan and can have a count of BBitmaps attached to a BView for Haiku integration.
I use Vulkan samples from here: https://github.com/SaschaWillems/Vulkan. It use OS API directly. I currently use headless WSI and hacked WSI addon to get window output.
Can you give a link of some simple GLFW Vulkan demo (rotating triangle etc.)?
Have a look at Vulkan Tutorial, it seems to have the most traffic besides Sascha’s pages. Win/linux/osx support with same codebase.
https://vulkan-tutorial.com/en/Development_environment#page_GLFW-2
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Good day @X512,
A really nice job there, KUDOS!!! I wonder if the hack you are using to get “window output” could be the same needed for Godot to work inside a window instead full screen [@CodeforEvolution, @cocobean]?.
Keep up the good work.
Regards,
RR
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Intel Vulkan driver also need futex functions (futex_wake, futex_wait) that currently unavailable on Haiku.
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