mesa-panvk-bifrost-video: r1-r4 patches as real files (symlinks broke CI)

The original PR #79 used symlinks for 0001..0004 patches (pointing into ../mesa-panvk-bifrost/) to avoid drift between siblings. CI's "cp -r arch/mesa-panvk-bifrost-video /tmp/build-..." preserves the symlinks, but the destination /tmp/build-... has no sibling dir to resolve them against, so makepkg errors with: ==> ERROR: 0001-panvk-expose-robustness2-nullDescriptor-bifrost.patch was not found in the build directory and is not a URL. Each Arch PKGBUILD owns its source files per convention; the duplication risk is low because r1..r4 are closed-release patches. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-22 09:49:59 +02:00
parent b81e2251c2
commit 4db64917bc
4 changed files with 1061 additions and 4 deletions
@@ -1 +0,0 @@
-../mesa-panvk-bifrost/0001-panvk-expose-robustness2-nullDescriptor-bifrost.patch
@@ -0,0 +1,57 @@
+From: claude-noether (on behalf of mfritsche)
+Date: 2026-05-19
+Subject: panvk: expose VK_KHR/EXT_robustness2 + nullDescriptor on Bifrost (PAN_ARCH 6/7)
+
+Without this, Mesa's Zink driver refuses to use PanVk-Bifrost as its Vulkan
+backend, falling back silently to llvmpipe (software rasterizer) for all
+GL-via-Zink on Bifrost SBCs. That defeats the entire purpose of having a
+Vulkan driver on Bifrost — GL acceleration via Zink is the most natural
+near-term consumer.
+
+panvk_vX_nir_lower_descriptors.c:1309 and panvk_vX_shader.c:1355 already
+plumb dev->vk.enabled_features.nullDescriptor arch-agnostically — the gate
+at panvk_vX_physical_device.c was set conservatively when Bifrost was
+unmaintained, not because of hardware incapability.
+
+iter1–7 of the panvk-bifrost campaign proved fundamental driver functions
+on Mali-G52 r1 MC1 (PAN_ARCH=7). This patch is the iter8 follow-up.
+
+robustBufferAccess2 and robustImageAccess2 are NOT flipped — they're
+independent rb2 features Zink doesn't require, gated differently
+(robustBufferAccess2 = PAN_ARCH >= 11, robustImageAccess2 = false), and
+out of scope for iter8.
+
+---
+ src/panfrost/vulkan/panvk_vX_physical_device.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/src/panfrost/vulkan/panvk_vX_physical_device.c b/src/panfrost/vulkan/panvk_vX_physical_device.c
+--- a/src/panfrost/vulkan/panvk_vX_physical_device.c
+++ b/src/panfrost/vulkan/panvk_vX_physical_device.c
+@@ -91,7 +91,7 @@ get_device_extensions(const struct panvk_physical_device *device,
+       .KHR_pipeline_binary = true,
+       .KHR_pipeline_executable_properties = true,
+       .KHR_pipeline_library = true,
+-      .KHR_robustness2 = PAN_ARCH >= 10,
+      .KHR_robustness2 = true,
+       .KHR_sampler_mirror_clamp_to_edge = true,
+       .KHR_sampler_ycbcr_conversion = true,
+       .KHR_separate_depth_stencil_layouts = true,
+@@ -168,7 +168,7 @@ get_device_extensions(const struct panvk_physical_device *device,
+       .EXT_queue_family_foreign = true,
+       .EXT_robustness = pan_arch(device->kmod.dev->props.gpu_id) >= 9,
+       .EXT_image_robustness = true,
+-      .EXT_robustness2 = PAN_ARCH >= 10,
+      .EXT_robustness2 = true,
+       .EXT_sampler_filter_minmax = PAN_ARCH >= 10,
+       .EXT_scalar_block_layout = true,
+       .EXT_separate_stencil_usage = true,
+@@ -493,7 +493,7 @@ get_device_features(const struct panvk_physical_device *device,
+       /* VK_KHR_robustness2 */
+       .robustBufferAccess2 = PAN_ARCH >= 11,
+       .robustImageAccess2 = false,
+-      .nullDescriptor = PAN_ARCH >= 10,
+      .nullDescriptor = true,
+
+       /* VK_KHR_shader_clock */
+       .shaderSubgroupClock = device->kmod.dev->props.gpu_can_query_timestamp,
				`@@ -1 +0,0 @@`
				`../mesa-panvk-bifrost/0001-panvk-expose-robustness2-nullDescriptor-bifrost.patch`