This is a note to let you know that I've just added the patch titled
drm/amdgpu: always register an MMU notifier for userptr
to the 6.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amdgpu-always-register-an-mmu-notifier-for-userptr.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b39df63b16b64a3af42695acb9bc567aad144776 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@xxxxxxx>
Date: Wed, 9 Nov 2022 12:14:44 +0100
Subject: drm/amdgpu: always register an MMU notifier for userptr
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
From: Christian König <christian.koenig@xxxxxxx>
commit b39df63b16b64a3af42695acb9bc567aad144776 upstream.
Since switching to HMM we always need that because we no longer grab
references to the pages.
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
Acked-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>
CC: stable@xxxxxxxxxxxxxxx
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -413,11 +413,9 @@ int amdgpu_gem_userptr_ioctl(struct drm_
if (r)
goto release_object;
- if (args->flags & AMDGPU_GEM_USERPTR_REGISTER) {
- r = amdgpu_mn_register(bo, args->addr);
- if (r)
- goto release_object;
- }
+ r = amdgpu_mn_register(bo, args->addr);
+ if (r)
+ goto release_object;
if (args->flags & AMDGPU_GEM_USERPTR_VALIDATE) {
r = amdgpu_ttm_tt_get_user_pages(bo, bo->tbo.ttm->pages);
Patches currently in stable-queue which might be from christian.koenig@xxxxxxx are
queue-6.0/drm-amdgpu-drop-eviction-lock-when-allocating-pt-bo.patch
queue-6.0/dma-buf-fix-racing-conflict-of-dma_heap_add.patch
queue-6.0/drm-amdgpu-always-register-an-mmu-notifier-for-userptr.patch
queue-6.0/dma-buf-use-dma_fence_unwrap_for_each-when-importing-fences.patch
queue-6.0/drm-amdgpu-psp-don-t-free-psp-buffers-on-suspend.patch
queue-6.0/drm-amd-amdgpu-reserve-vm-invalidation-engine-for-firmware.patch
