Date: Wed, 18 Mar 2020 00:57:35 +0000 From: bugzilla-noreply@freebsd.org To: x11@FreeBSD.org Subject: [Bug 244877] graphics/mesa-dri: Fixing vulkan by switching to unsynchronized userptr ioctls Message-ID: <bug-244877-7141@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=244877 Bug ID: 244877 Summary: graphics/mesa-dri: Fixing vulkan by switching to unsynchronized userptr ioctls Product: Ports & Packages Version: Latest Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: Individual Port(s) Assignee: x11@FreeBSD.org Reporter: ashafer@badland.io Assignee: x11@FreeBSD.org Flags: maintainer-feedback?(x11@FreeBSD.org) Created attachment 212484 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=212484&action=edit mesa-dri: patch for anv_gem.c This is the userspace portion of a change which fixes the Vulkan graphics API on older Intel machines: https://github.com/FreeBSDDesktop/kms-drm/pull/205 The above PR fixes the unsychronized DRM_IOCTL_I915_GEM_USERPTR which is used by intel's vulkan code. For the fix to be used the ioctl needs to have the I915_USERPTR_UNSYNCHRONIZED flag enabled: struct drm_i915_gem_userptr userptr = { .user_ptr = (__u64)((unsigned long) mem), .user_size = size, - .flags = 0, + .flags = I915_USERPTR_UNSYNCHRONIZED, }; int ret = anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_USERPTR, &userptr); I've needed both the PR and this change for some daily vulkan development to work. It seems that maybe all the mesa stuff is going to be overhauled soon? So maybe this isn't the ideal time to merge this. Please let me know if there is anything I can help with! -- You are receiving this mail because: You are the assignee for the bug.home | help
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