marfrit
a4e7d8ab90
panvk-bifrost campaigns (r1..r4 Vulkan compositor + r5.video1 Vulkan
video decode) shipped before this repo existed; the deliverable
patches live in marfrit-packages, but the reasoning chain, phase docs,
and source-state evidence lived only in local working trees on the
development host.
This retrofit imports:
- mesa-panvk-bifrost/ — r1..r4 era phase docs (iter1..iter18)
(libmali stub blobs at iter18/blob/ excluded
— 109MB of RE artifacts replaced with a README
pointer)
- mesa-panvk-bifrost-video/ — sibling campaign phase docs + probe
- evidence/ — frozen .tgz source snapshots at each milestone
(basis for the 0005 patch diff generation)
Future iterations should branch off here from day one, so each iter is
a commit rather than a snapshot. See [[feedback-session-local-process-pins]]
for the process drift this retrofit closes.
Total: 1.9 MB across 124 files.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
208 lines
10 KiB
Plaintext
208 lines
10 KiB
Plaintext
Captured 2026-05-19 from ohm (PineTab2 v2.0 / RK3566 / Mali-G52 r1 MC1)
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Command: PAN_I_WANT_A_BROKEN_VULKAN_DRIVER=1 vulkaninfo
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Stripped: leading "DISPLAY not set" / "XDG_RUNTIME_DIR invalid" stderr noise.
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==========
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VULKANINFO
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==========
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Vulkan Instance Version: 1.4.350
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Instance Extensions: count = 19
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===============================
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VK_EXT_acquire_xlib_display : extension revision 1
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VK_EXT_debug_report : extension revision 10
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VK_EXT_debug_utils : extension revision 2
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VK_EXT_direct_mode_display : extension revision 1
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VK_EXT_display_surface_counter : extension revision 1
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VK_EXT_headless_surface : extension revision 1
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VK_EXT_layer_settings : extension revision 2
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VK_KHR_device_group_creation : extension revision 1
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VK_KHR_display : extension revision 23
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VK_KHR_external_fence_capabilities : extension revision 1
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VK_KHR_external_memory_capabilities : extension revision 1
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VK_KHR_external_semaphore_capabilities : extension revision 1
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VK_KHR_get_physical_device_properties2 : extension revision 2
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VK_KHR_portability_enumeration : extension revision 1
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VK_KHR_surface : extension revision 25
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VK_KHR_wayland_surface : extension revision 6
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VK_KHR_xcb_surface : extension revision 6
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VK_KHR_xlib_surface : extension revision 6
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VK_LUNARG_direct_driver_loading : extension revision 1
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Device Properties and Extensions:
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=================================
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GPU0:
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VkPhysicalDeviceProperties:
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---------------------------
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apiVersion = 1.0.335 (4194639)
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driverVersion = 26.0.6 (109051910)
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vendorID = 0x13b5
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deviceID = 0x74021000
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deviceType = PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU
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deviceName = Mali-G52 r1 MC1
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pipelineCacheUUID = 287f3481-6415-7361-b1e9-14774b59e609
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VkPhysicalDeviceLimits (selected):
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----------------------------------
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maxImageDimension1D = 65536
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maxImageDimension2D = 16383
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maxImageDimension3D = 512 # small — Bifrost limitation
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maxImageDimensionCube = 16383
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maxImageArrayLayers = 65536
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maxBoundDescriptorSets = 4 # LOW — many engines want 8
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maxPushConstantsSize = 256
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maxComputeSharedMemorySize = 32768
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maxComputeWorkGroupCount = 65535/65535/65535
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maxComputeWorkGroupInvocations = 384
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maxComputeWorkGroupSize = 384/384/384
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maxViewports = 1 # single viewport
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maxViewportDimensions = 16384/16384
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maxFramebufferWidth/Height/Layers = 16384/16384/256
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framebufferColorSampleCounts = {1x, 4x} # no 2x or 8x MSAA
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maxColorAttachments = 8
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timestampComputeAndGraphics = false # TIMESTAMPS BROKEN
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timestampPeriod = 0
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maxDrawIndirectCount = 1
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maxClipDistances = 0 # no gl_ClipDistance
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maxCullDistances = 0
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VkPhysicalDeviceDriverPropertiesKHR:
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------------------------------------
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driverID = DRIVER_ID_MESA_PANVK
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driverName = panvk
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driverInfo = Mesa 26.0.6-arch1.1
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conformanceVersion = 0.0.0.0
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VkPhysicalDeviceFeatures (selected, supported):
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-----------------------------------------------
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robustBufferAccess = true
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fullDrawIndexUint32 = true
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imageCubeArray = true
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independentBlend = true
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sampleRateShading = true
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dualSrcBlend = true
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logicOp = true
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drawIndirectFirstInstance = true
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depthClamp = true
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depthBiasClamp = true
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wideLines = true
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largePoints = true
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samplerAnisotropy = true
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textureCompressionETC2 = true
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textureCompressionASTC_LDR = true
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textureCompressionBC = true
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occlusionQueryPrecise = true
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shaderImageGatherExtended = true
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shaderStorageImageExtendedFormats = true
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shaderStorageImageReadWithoutFormat = true
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shaderStorageImageWriteWithoutFormat = true
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shaderUniformBufferArrayDynamicIndexing = true
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shaderSampledImageArrayDynamicIndexing = true
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shaderStorageBufferArrayDynamicIndexing = true
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shaderStorageImageArrayDynamicIndexing = true
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shaderInt64 = true
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shaderInt16 = true
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VkPhysicalDeviceFeatures (selected, NOT supported):
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---------------------------------------------------
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geometryShader = false # Mali never had geometry
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tessellationShader = false # Mali never had tess
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multiDrawIndirect = false
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multiViewport = false
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alphaToOne = false
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fillModeNonSolid = false # no wireframe
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depthBounds = false
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pipelineStatisticsQuery = false
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vertexPipelineStoresAndAtomics = false
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fragmentStoresAndAtomics = false
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shaderTessellationAndGeometryPointSize = false
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shaderStorageImageMultisample = false
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shaderClipDistance = false
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shaderCullDistance = false
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shaderFloat64 = false
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shaderFloat16 = false # surprising — see 16bit_storage
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shaderResourceResidency = false
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shaderResourceMinLod = false
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sparseBinding = false # v10+ only
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sparseResidency* = false (all)
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variableMultisampleRate = false
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inheritedQueries = false
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VkQueueFamilyProperties:
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------------------------
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queueProperties[0]:
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queueCount = 1
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queueFlags = QUEUE_GRAPHICS_BIT | QUEUE_COMPUTE_BIT | QUEUE_TRANSFER_BIT
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timestampValidBits = 0 # timestamps broken
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present support = false # no-surface query — needs WSI surface present
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VkPhysicalDeviceMemoryProperties:
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---------------------------------
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memoryHeaps[0]:
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size = 6043143168 (5.63 GiB) # UMA — full system RAM as device-local
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flags = MEMORY_HEAP_DEVICE_LOCAL_BIT
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memoryTypes:
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[0] DEVICE_LOCAL_BIT
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[1] DEVICE_LOCAL_BIT | HOST_VISIBLE_BIT | HOST_CACHED_BIT
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[2] DEVICE_LOCAL_BIT | HOST_VISIBLE_BIT | HOST_COHERENT_BIT
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Device Extensions: count = 118
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==============================
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[Full list — 118 extensions. Notable ones below; full list in repo at this path.]
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VK_EXT_4444_formats VK_EXT_border_color_swizzle VK_EXT_buffer_device_address
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VK_EXT_calibrated_timestamps VK_EXT_custom_border_color VK_EXT_depth_bias_control
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VK_EXT_depth_clamp_zero_one VK_EXT_depth_clip_control VK_EXT_depth_clip_enable
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VK_EXT_device_memory_report VK_EXT_extended_dynamic_state VK_EXT_extended_dynamic_state2
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VK_EXT_external_memory_dma_buf VK_EXT_graphics_pipeline_library VK_EXT_hdr_metadata
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VK_EXT_host_image_copy VK_EXT_host_query_reset VK_EXT_image_drm_format_modifier
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VK_EXT_image_robustness VK_EXT_index_type_uint8 VK_EXT_inline_uniform_block
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VK_EXT_line_rasterization VK_EXT_load_store_op_none
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VK_EXT_multisampled_render_to_single_sampled VK_EXT_non_seamless_cube_map
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VK_EXT_physical_device_drm VK_EXT_pipeline_creation_cache_control
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VK_EXT_pipeline_robustness VK_EXT_primitive_topology_list_restart VK_EXT_private_data
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VK_EXT_provoking_vertex VK_EXT_queue_family_foreign VK_EXT_scalar_block_layout
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VK_EXT_separate_stencil_usage VK_EXT_shader_demote_to_helper_invocation
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VK_EXT_shader_module_identifier VK_EXT_shader_replicated_composites
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VK_EXT_shader_subgroup_ballot VK_EXT_shader_subgroup_vote VK_EXT_texel_buffer_alignment
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VK_EXT_texture_compression_astc_hdr VK_EXT_tooling_info VK_EXT_vertex_attribute_divisor
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VK_EXT_vertex_input_dynamic_state
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VK_KHR_16bit_storage VK_KHR_8bit_storage VK_KHR_bind_memory2
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VK_KHR_buffer_device_address VK_KHR_copy_commands2 VK_KHR_create_renderpass2
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VK_KHR_dedicated_allocation VK_KHR_depth_stencil_resolve
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VK_KHR_descriptor_update_template VK_KHR_device_group VK_KHR_driver_properties
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VK_KHR_dynamic_rendering VK_KHR_dynamic_rendering_local_read
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VK_KHR_external_fence VK_KHR_external_fence_fd VK_KHR_external_memory
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VK_KHR_external_memory_fd VK_KHR_external_semaphore VK_KHR_external_semaphore_fd
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VK_KHR_format_feature_flags2 VK_KHR_global_priority
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VK_KHR_image_format_list VK_KHR_imageless_framebuffer
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VK_KHR_index_type_uint8 VK_KHR_line_rasterization VK_KHR_load_store_op_none
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VK_KHR_maintenance1 VK_KHR_maintenance2 VK_KHR_maintenance3 VK_KHR_maintenance9
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VK_KHR_map_memory2 VK_KHR_multiview VK_KHR_pipeline_binary
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VK_KHR_pipeline_executable_properties VK_KHR_pipeline_library
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VK_KHR_present_id2 VK_KHR_present_wait2 VK_KHR_push_descriptor
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VK_KHR_relaxed_block_layout VK_KHR_sampler_mirror_clamp_to_edge
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VK_KHR_sampler_ycbcr_conversion VK_KHR_separate_depth_stencil_layouts
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VK_KHR_shader_clock VK_KHR_shader_draw_parameters VK_KHR_shader_expect_assume
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VK_KHR_shader_float16_int8 VK_KHR_shader_float_controls
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VK_KHR_shader_integer_dot_product VK_KHR_shader_non_semantic_info
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VK_KHR_shader_relaxed_extended_instruction VK_KHR_shader_subgroup_rotate
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VK_KHR_shader_terminate_invocation VK_KHR_storage_buffer_storage_class
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VK_KHR_swapchain VK_KHR_synchronization2 VK_KHR_timeline_semaphore
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VK_KHR_unified_image_layouts VK_KHR_uniform_buffer_standard_layout
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VK_KHR_variable_pointers VK_KHR_vertex_attribute_divisor
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VK_KHR_vulkan_memory_model VK_KHR_zero_initialize_workgroup_memory
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NOT in extension list (worth noting):
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VK_EXT_descriptor_indexing # bindless descriptors
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VK_EXT_transform_feedback # XFB
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VK_EXT_conditional_rendering
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VK_KHR_ray_tracing_* # RT not on Bifrost
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VK_EXT_mesh_shader # mesh not on Bifrost
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VK_EXT_fragment_shader_interlock
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VK_EXT_fragment_density_map # Mali variable rate shading
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End of vulkaninfo capture.
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