diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0916-drm-amdgpu-use-a-rw_semaphore-for-MMU-notifiers.patch')
-rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0916-drm-amdgpu-use-a-rw_semaphore-for-MMU-notifiers.patch | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0916-drm-amdgpu-use-a-rw_semaphore-for-MMU-notifiers.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0916-drm-amdgpu-use-a-rw_semaphore-for-MMU-notifiers.patch deleted file mode 100644 index 9683c583..00000000 --- a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0916-drm-amdgpu-use-a-rw_semaphore-for-MMU-notifiers.patch +++ /dev/null @@ -1,127 +0,0 @@ -From 141a7a5b253a80a5c7f2fb991a3311420250199d Mon Sep 17 00:00:00 2001 -From: Christian Koenig <christian.koenig@amd.com> -Date: Mon, 11 Sep 2017 18:19:39 -0400 -Subject: [PATCH 0916/4131] drm/amdgpu: use a rw_semaphore for MMU notifiers -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -Allow at least some parallel processing. - -Signed-off-by: Christian König <christian.koenig@amd.com> -Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> -Signed-off-by: Kalyan Alle <kalyan.alle@amd.com> - - Conflicts: - drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c - -Change-Id: Ia2c13487a91dcf01c954632579d9b00fdae44c81 ---- - drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c | 22 +++++++++++----------- - 1 file changed, 11 insertions(+), 11 deletions(-) - -diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c -index 06b031f..14f313e 100644 ---- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c -+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c -@@ -50,7 +50,7 @@ struct amdgpu_mn { - struct hlist_node node; - - /* objects protected by lock */ -- struct mutex lock; -+ struct rw_semaphore lock; - struct rb_root_cached objects; - }; - -@@ -74,7 +74,7 @@ static void amdgpu_mn_destroy(struct work_struct *work) - struct amdgpu_bo *bo, *next_bo; - - mutex_lock(&adev->mn_lock); -- mutex_lock(&rmn->lock); -+ down_write(&rmn->lock); - hash_del(&rmn->node); - rbtree_postorder_for_each_entry_safe(node, next_node, - &rmn->objects.rb_root, it.rb) { -@@ -84,7 +84,7 @@ static void amdgpu_mn_destroy(struct work_struct *work) - } - kfree(node); - } -- mutex_unlock(&rmn->lock); -+ up_write(&rmn->lock); - mutex_unlock(&adev->mn_lock); - mmu_notifier_unregister_no_release(&rmn->mn, rmn->mm); - kfree(rmn); -@@ -165,7 +165,7 @@ static void amdgpu_mn_invalidate_range_start(struct mmu_notifier *mn, - /* notification is exclusive, but interval is inclusive */ - end -= 1; - -- mutex_lock(&rmn->lock); -+ down_read(&rmn->lock); - - it = interval_tree_iter_first(&rmn->objects, start, end); - while (it) { -@@ -177,7 +177,7 @@ static void amdgpu_mn_invalidate_range_start(struct mmu_notifier *mn, - amdgpu_mn_invalidate_node(node, start, end); - } - -- mutex_unlock(&rmn->lock); -+ up_read(&rmn->lock); - } - - static const struct mmu_notifier_ops amdgpu_mn_ops = { -@@ -217,7 +217,7 @@ static struct amdgpu_mn *amdgpu_mn_get(struct amdgpu_device *adev) - rmn->adev = adev; - rmn->mm = mm; - rmn->mn.ops = &amdgpu_mn_ops; -- mutex_init(&rmn->lock); -+ init_rwsem(&rmn->lock); - rmn->objects = RB_ROOT_CACHED; - - r = __mmu_notifier_register(&rmn->mn, mm); -@@ -264,7 +264,7 @@ int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr) - - INIT_LIST_HEAD(&bos); - -- mutex_lock(&rmn->lock); -+ down_write(&rmn->lock); - - while ((it = interval_tree_iter_first(&rmn->objects, addr, end))) { - kfree(node); -@@ -278,7 +278,7 @@ int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr) - if (!node) { - node = kmalloc(sizeof(struct amdgpu_mn_node), GFP_NOIO); - if (!node) { -- mutex_unlock(&rmn->lock); -+ up_write(&rmn->lock); - return -ENOMEM; - } - } -@@ -293,7 +293,7 @@ int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr) - - interval_tree_insert(&node->it, &rmn->objects); - -- mutex_unlock(&rmn->lock); -+ up_write(&rmn->lock); - - return 0; - } -@@ -319,7 +319,7 @@ void amdgpu_mn_unregister(struct amdgpu_bo *bo) - return; - } - -- mutex_lock(&rmn->lock); -+ down_write(&rmn->lock); - - /* save the next list entry for later */ - head = bo->mn_list.next; -@@ -334,6 +334,6 @@ void amdgpu_mn_unregister(struct amdgpu_bo *bo) - kfree(node); - } - -- mutex_unlock(&rmn->lock); -+ up_write(&rmn->lock); - mutex_unlock(&adev->mn_lock); - } --- -2.7.4 - |