split uvm part of kernel 6.3 fix into separate patch

[packages/xorg-driver-video-nvidia-legacy-390xx.git] / kernel-6.3-uvm.patch

diff --git a/kernel-6.3-uvm.patch b/kernel-6.3-uvm.patch
new file mode 100644 (file)
index 0000000..7156c9a
--- /dev/null
+++ b/kernel-6.3-uvm.patch
@@ -0,0 +1,12 @@
+diff --color -ur NVIDIA-Linux-x86_64-390.157-no-compat32.orig/kernel/nvidia-uvm/uvm8.c NVIDIA-Linux-x86_64-390.157-no-compat32/kernel/nvidia-uvm/uvm8.c
+--- NVIDIA-Linux-x86_64-390.157-no-compat32.orig/kernel/nvidia-uvm/uvm8.c      2022-10-12 11:30:28.000000000 +0200
++++ NVIDIA-Linux-x86_64-390.157-no-compat32/kernel/nvidia-uvm/uvm8.c   2023-05-27 21:31:28.027398157 +0200
+@@ -658,7 +658,7 @@
+     // Using VM_DONTCOPY would be nice, but madvise(MADV_DOFORK) can reset that
+     // so we have to handle vm_open on fork anyway. We could disable MADV_DOFORK
+     // with VM_IO, but that causes other mapping issues.
+-    vma->vm_flags |= VM_MIXEDMAP | VM_DONTEXPAND;
++    nv_vm_flags_set(vma, VM_MIXEDMAP | VM_DONTEXPAND | VM_DONTCOPY);
+ 
+     vma->vm_ops = &uvm_vm_ops_managed;
+