From a269e44989f3e77fb2ebfb995b8d501924ed07e2 Mon Sep 17 00:00:00 2001 From: Alex Sierra Date: Tue, 17 Dec 2019 16:57:30 -0600 Subject: drm/amdgpu: Avoid reclaim fs while eviction lock MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit [Why] Avoid reclaim filesystem while eviction lock is held called from MMU notifier. [How] Setting PF_MEMALLOC_NOFS flags while eviction mutex is locked. Using memalloc_nofs_save / memalloc_nofs_restore API. Signed-off-by: Alex Sierra Reviewed-by: Felix Kuehling Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h index fade4f45320c..b4640ab38c95 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -30,6 +30,7 @@ #include #include #include +#include #include "amdgpu_sync.h" #include "amdgpu_ring.h" @@ -239,9 +240,12 @@ struct amdgpu_vm { /* tree of virtual addresses mapped */ struct rb_root_cached va; - /* Lock to prevent eviction while we are updating page tables */ + /* Lock to prevent eviction while we are updating page tables + * use vm_eviction_lock/unlock(vm) + */ struct mutex eviction_lock; bool evicting; + unsigned int saved_flags; /* BOs who needs a validation */ struct list_head evicted; -- cgit v1.2.3-70-g09d2