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Val Packett 2025-09-25 22:29:24 -03:00
commit 4602228be9
13 changed files with 451 additions and 0 deletions
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radvmmio.patch Normal file
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@ -0,0 +1,42 @@
From c2fd030644cf2074f9d2ffd155839b2e943473d0 Mon Sep 17 00:00:00 2001
From: Val Packett <val@packett.cool>
Date: Wed, 10 Sep 2025 15:44:41 -0300
Subject: [PATCH] radv: detect platform:virtio-mmio devices for virtgpu native
context
VirtIO devices can be configured as platform devices instead of PCI,
which is especially common in microVM projects like libkrun.
Let's allow RADV to probe MMIO virtgpu devices.
Signed-off-by: Val Packett <val@invisiblethingslab.com>
---
src/amd/vulkan/radv_physical_device.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/src/amd/vulkan/radv_physical_device.c b/src/amd/vulkan/radv_physical_device.c
index 07b5b000b3ae..cd6f4c3488a1 100644
--- a/src/amd/vulkan/radv_physical_device.c
+++ b/src/amd/vulkan/radv_physical_device.c
@@ -2507,14 +2507,15 @@ create_drm_physical_device(struct vk_instance *vk_instance, struct _drmDevice *d
#ifndef _WIN32
bool supported_device = false;
- if (!(device->available_nodes & (1 << DRM_NODE_RENDER)) || device->bustype != DRM_BUS_PCI)
+ if (!(device->available_nodes & (1 << DRM_NODE_RENDER)))
return VK_ERROR_INCOMPATIBLE_DRIVER;
#ifdef HAVE_AMDGPU_VIRTIO
- supported_device |= device->deviceinfo.pci->vendor_id == VIRTGPU_PCI_VENDOR_ID;
+ supported_device |= device->bustype == DRM_BUS_PCI && device->deviceinfo.pci->vendor_id == VIRTGPU_PCI_VENDOR_ID;
+ supported_device |= device->bustype == DRM_BUS_PLATFORM; /* virtio-mmio */
#endif
- supported_device |= device->deviceinfo.pci->vendor_id == ATI_VENDOR_ID;
+ supported_device |= device->bustype == DRM_BUS_PCI && device->deviceinfo.pci->vendor_id == ATI_VENDOR_ID;
if (!supported_device)
return VK_ERROR_INCOMPATIBLE_DRIVER;
--
2.50.1