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>
48 lines
2.1 KiB
Diff
48 lines
2.1 KiB
Diff
From: claude-noether (on behalf of mfritsche)
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Date: 2026-05-20
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Subject: panvk: expose Vulkan 1.1 + 1.2 on Bifrost (PAN_ARCH 6/7)
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ANGLE (Chromium's GL stack) requires apiVersion >= 1.1 to initialize. Without
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this, Brave / Chromium's GPU process fails at GL info collection:
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vk_renderer.cpp:2659 (initialize): ANGLE Requires a minimum Vulkan device
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version of 1.1
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Display::initialize error 0: Internal Vulkan error (-9): The requested
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version of Vulkan is not supported by the driver
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Stack-up with iter8's robustness2 patch enables ANGLE → PanVk-Bifrost →
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Skia (via --enable-features=Vulkan) on Bifrost SBCs.
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PanVk-Bifrost already supports the bulk of 1.1-promoted features as extensions
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(multiview, maintenance1-3, descriptor update template, 16-bit storage,
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descriptor update template, sampler ycbcr, variable pointers, etc. — all
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visible in iter0 vulkaninfo). The version bump primarily bundles them.
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Risk: Vulkan 1.1 has features beyond what iter1–7 exercised (protected memory,
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full subgroup ops). Specific app failures will be characterizable.
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1.2 is also flipped — Brave's Vulkan path may want descriptor indexing,
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buffer device address, etc. (all listed in iter0 vulkaninfo as supported
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extensions, just gated as 1.0-with-extensions, not 1.2-core).
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---
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src/panfrost/vulkan/panvk_vX_physical_device.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/src/panfrost/vulkan/panvk_vX_physical_device.c b/src/panfrost/vulkan/panvk_vX_physical_device.c
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--- a/src/panfrost/vulkan/panvk_vX_physical_device.c
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+++ b/src/panfrost/vulkan/panvk_vX_physical_device.c
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@@ -38,8 +38,8 @@ get_device_extensions(const struct panvk_physical_device *device,
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struct vk_device_extension_table *ext)
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{
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*ext = (struct vk_device_extension_table){
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- .KHR_8bit_storage = true,
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- .KHR_16bit_storage = true,
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- bool has_vk1_1 = PAN_ARCH >= 10;
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- bool has_vk1_2 = PAN_ARCH >= 10;
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+ .KHR_8bit_storage = true,
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+ .KHR_16bit_storage = true,
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+ bool has_vk1_1 = true;
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+ bool has_vk1_2 = true;
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*ext = (struct vk_device_extension_table){
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