Attachment 140418 Details for Bug 107065 – drm/amdgpu: Verify root PD is mapped into kernel address space.

[patch] drm/amdgpu: Verify root PD is mapped into kernel address space.

0001-drm-amdgpu-Verify-root-PD-is-mapped-into-kernel-addr.patch (text/plain), 1.08 KB, created by Andrey Grodzovsky on 2018-07-02 03:11:27 UTC

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Creator: Andrey Grodzovsky

Created: 2018-07-02 03:11:27 UTC

Size: 1.08 KB

patch

obsolete

>From 6a9b7891de7f4b7510da9a59d76a4b8197fed6f2 Mon Sep 17 00:00:00 2001
>From: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
>Date: Sun, 1 Jul 2018 23:02:59 -0400
>Subject: drm/amdgpu: Verify root PD is mapped into kernel address space.
>
>When PD/PT update maode is by CPU root must be mapped.
>
>Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
>---
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
>diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>index 8ec459e..7c99f92 100644
>--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>@@ -2614,6 +2614,16 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm,
> 		goto error_unreserve;
> 
> 	amdgpu_vm_bo_base_init(&vm->root.base, vm, root);
>+
>+	if (vm->use_cpu_for_update) {
>+		r = amdgpu_bo_kmap(vm->root.base.bo, NULL);
>+		if (r) {
>+			amdgpu_bo_unref(&vm->root.base.bo->shadow);
>+			amdgpu_bo_unref(&vm->root.base.bo);
>+			return r;
>+		}
>+	}
>+
> 	amdgpu_bo_unreserve(vm->root.base.bo);
> 
> 	if (pasid) {
>-- 
>2.7.4
>

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Attachments on bug 107065: 140383 | 140418 | 140634 | 140715 | 140721

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