Merge tag 'efi-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi into efi/urgent

Pull a single EFI fix for v5.3 from Ard:

  - Fix mixed mode breakage in EFI config table handling for TPM.

1 files changed, 45 insertions, 5 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h
index eb0f432f78fe..b8ed68943625 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h
@@ -24,23 +24,61 @@
 #ifndef __AMDGPU_MN_H__
 #define __AMDGPU_MN_H__
 
-/*
- * MMU Notifier
- */
-struct amdgpu_mn;
+#include <linux/types.h>
+#include <linux/hmm.h>
+#include <linux/rwsem.h>
+#include <linux/workqueue.h>
+#include <linux/interval_tree.h>
 
 enum amdgpu_mn_type {
 	AMDGPU_MN_TYPE_GFX,
 	AMDGPU_MN_TYPE_HSA,
 };
 
-#if defined(CONFIG_MMU_NOTIFIER)
+/**
+ * struct amdgpu_mn
+ *
+ * @adev: amdgpu device pointer
+ * @mm: process address space
+ * @type: type of MMU notifier
+ * @work: destruction work item
+ * @node: hash table node to find structure by adev and mn
+ * @lock: rw semaphore protecting the notifier nodes
+ * @objects: interval tree containing amdgpu_mn_nodes
+ * @mirror: HMM mirror function support
+ *
+ * Data for each amdgpu device and process address space.
+ */
+struct amdgpu_mn {
+	/* constant after initialisation */
+	struct amdgpu_device	*adev;
+	struct mm_struct	*mm;
+	enum amdgpu_mn_type	type;
+
+	/* only used on destruction */
+	struct work_struct	work;
+
+	/* protected by adev->mn_lock */
+	struct hlist_node	node;
+
+	/* objects protected by lock */
+	struct rw_semaphore	lock;
+	struct rb_root_cached	objects;
+
+#ifdef CONFIG_HMM_MIRROR
+	/* HMM mirror */
+	struct hmm_mirror	mirror;
+#endif
+};
+
+#if defined(CONFIG_HMM_MIRROR)
 void amdgpu_mn_lock(struct amdgpu_mn *mn);
 void amdgpu_mn_unlock(struct amdgpu_mn *mn);
 struct amdgpu_mn *amdgpu_mn_get(struct amdgpu_device *adev,
 				enum amdgpu_mn_type type);
 int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr);
 void amdgpu_mn_unregister(struct amdgpu_bo *bo);
+void amdgpu_hmm_init_range(struct hmm_range *range);
 #else
 static inline void amdgpu_mn_lock(struct amdgpu_mn *mn) {}
 static inline void amdgpu_mn_unlock(struct amdgpu_mn *mn) {}
@@ -51,6 +89,8 @@ static inline struct amdgpu_mn *amdgpu_mn_get(struct amdgpu_device *adev,
 }
 static inline int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr)
 {
+	DRM_WARN_ONCE("HMM_MIRROR kernel config option is not enabled, "
+		      "add CONFIG_ZONE_DEVICE=y in config file to fix this\n");
 	return -ENODEV;
 }
 static inline void amdgpu_mn_unregister(struct amdgpu_bo *bo) {}