Merge tag 'drm-misc-next-2025-08-21' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for v6.18:

Core Changes:

bridge:
- Support Content Protection property

gpuvm:
- Support madvice in Xe driver

mipi:
- Add more multi-read/write helpers for improved error handling

Driver Changes:

amdxdna:
- Refactoring wrt. hardware contexts

bridge:
- display-connector: Improve DP display detection

panel:
- Fix includes in various drivers

panthor:
- Add support for Mali G710, G510, G310, Gx15, Gx20, Gx25
- Improve cache flushing

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250821073822.GA45904@2a02-2454-fd5e-fd00-8f09-b5f-980b-a7ef.dyn6.pyur.net

5 files changed, 133 insertions, 17 deletions

diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index 2ec1b136d603..8d9d4fd078e7 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -1172,6 +1172,10 @@ struct drm_bridge {
 	 */
 	bool pre_enable_prev_first;
 	/**
+	 * @support_hdcp: Indicate that the bridge supports HDCP.
+	 */
+	bool support_hdcp;
+	/**
 	 * @ddc: Associated I2C adapter for DDC access, if any.
 	 */
 	struct i2c_adapter *ddc;
diff --git a/include/drm/drm_gpusvm.h b/include/drm/drm_gpusvm.h
index 4aedc5423aff..142fc2af1716 100644
--- a/include/drm/drm_gpusvm.h
+++ b/include/drm/drm_gpusvm.h
@@ -282,6 +282,10 @@ void drm_gpusvm_range_unmap_pages(struct drm_gpusvm *gpusvm,
 bool drm_gpusvm_has_mapping(struct drm_gpusvm *gpusvm, unsigned long start,
 			    unsigned long end);
 
+struct drm_gpusvm_notifier *
+drm_gpusvm_notifier_find(struct drm_gpusvm *gpusvm, unsigned long start,
+			 unsigned long end);
+
 struct drm_gpusvm_range *
 drm_gpusvm_range_find(struct drm_gpusvm_notifier *notifier, unsigned long start,
 		      unsigned long end);
@@ -434,4 +438,70 @@ __drm_gpusvm_range_next(struct drm_gpusvm_range *range)
 	     (range__) && (drm_gpusvm_range_start(range__) < (end__));	\
 	     (range__) = __drm_gpusvm_range_next(range__))
 
+/**
+ * drm_gpusvm_for_each_range_safe() - Safely iterate over GPU SVM ranges in a notifier
+ * @range__: Iterator variable for the ranges
+ * @next__: Iterator variable for the ranges temporay storage
+ * @notifier__: Pointer to the GPU SVM notifier
+ * @start__: Start address of the range
+ * @end__: End address of the range
+ *
+ * This macro is used to iterate over GPU SVM ranges in a notifier while
+ * removing ranges from it.
+ */
+#define drm_gpusvm_for_each_range_safe(range__, next__, notifier__, start__, end__)	\
+	for ((range__) = drm_gpusvm_range_find((notifier__), (start__), (end__)),	\
+	     (next__) = __drm_gpusvm_range_next(range__);				\
+	     (range__) && (drm_gpusvm_range_start(range__) < (end__));			\
+	     (range__) = (next__), (next__) = __drm_gpusvm_range_next(range__))
+
+/**
+ * __drm_gpusvm_notifier_next() - get the next drm_gpusvm_notifier in the list
+ * @notifier: a pointer to the current drm_gpusvm_notifier
+ *
+ * Return: A pointer to the next drm_gpusvm_notifier if available, or NULL if
+ *         the current notifier is the last one or if the input notifier is
+ *         NULL.
+ */
+static inline struct drm_gpusvm_notifier *
+__drm_gpusvm_notifier_next(struct drm_gpusvm_notifier *notifier)
+{
+	if (notifier && !list_is_last(&notifier->entry,
+				      &notifier->gpusvm->notifier_list))
+		return list_next_entry(notifier, entry);
+
+	return NULL;
+}
+
+/**
+ * drm_gpusvm_for_each_notifier() - Iterate over GPU SVM notifiers in a gpusvm
+ * @notifier__: Iterator variable for the notifiers
+ * @gpusvm__: Pointer to the GPU SVM notifier
+ * @start__: Start address of the notifier
+ * @end__: End address of the notifier
+ *
+ * This macro is used to iterate over GPU SVM notifiers in a gpusvm.
+ */
+#define drm_gpusvm_for_each_notifier(notifier__, gpusvm__, start__, end__)		\
+	for ((notifier__) = drm_gpusvm_notifier_find((gpusvm__), (start__), (end__));	\
+	     (notifier__) && (drm_gpusvm_notifier_start(notifier__) < (end__));		\
+	     (notifier__) = __drm_gpusvm_notifier_next(notifier__))
+
+/**
+ * drm_gpusvm_for_each_notifier_safe() - Safely iterate over GPU SVM notifiers in a gpusvm
+ * @notifier__: Iterator variable for the notifiers
+ * @next__: Iterator variable for the notifiers temporay storage
+ * @gpusvm__: Pointer to the GPU SVM notifier
+ * @start__: Start address of the notifier
+ * @end__: End address of the notifier
+ *
+ * This macro is used to iterate over GPU SVM notifiers in a gpusvm while
+ * removing notifiers from it.
+ */
+#define drm_gpusvm_for_each_notifier_safe(notifier__, next__, gpusvm__, start__, end__)	\
+	for ((notifier__) = drm_gpusvm_notifier_find((gpusvm__), (start__), (end__)),	\
+	     (next__) = __drm_gpusvm_notifier_next(notifier__);				\
+	     (notifier__) && (drm_gpusvm_notifier_start(notifier__) < (end__));		\
+	     (notifier__) = (next__), (next__) = __drm_gpusvm_notifier_next(notifier__))
+
 #endif /* __DRM_GPUSVM_H__ */
diff --git a/include/drm/drm_gpuvm.h b/include/drm/drm_gpuvm.h
index 274532facfd6..4a22b9d848f7 100644
--- a/include/drm/drm_gpuvm.h
+++ b/include/drm/drm_gpuvm.h
@@ -160,15 +160,6 @@ struct drm_gpuva *drm_gpuva_find_first(struct drm_gpuvm *gpuvm,
 struct drm_gpuva *drm_gpuva_find_prev(struct drm_gpuvm *gpuvm, u64 start);
 struct drm_gpuva *drm_gpuva_find_next(struct drm_gpuvm *gpuvm, u64 end);
 
-static inline void drm_gpuva_init(struct drm_gpuva *va, u64 addr, u64 range,
-				  struct drm_gem_object *obj, u64 offset)
-{
-	va->va.addr = addr;
-	va->va.range = range;
-	va->gem.obj = obj;
-	va->gem.offset = offset;
-}
-
 /**
  * drm_gpuva_invalidate() - sets whether the backing GEM of this &drm_gpuva is
  * invalidated
@@ -1058,10 +1049,23 @@ struct drm_gpuva_ops {
  */
 #define drm_gpuva_next_op(op) list_next_entry(op, entry)
 
+/**
+ * struct drm_gpuvm_map_req - arguments passed to drm_gpuvm_sm_map[_ops_create]()
+ */
+struct drm_gpuvm_map_req {
+	/**
+	 * @op_map: struct drm_gpuva_op_map
+	 */
+	struct drm_gpuva_op_map map;
+};
+
 struct drm_gpuva_ops *
 drm_gpuvm_sm_map_ops_create(struct drm_gpuvm *gpuvm,
-			    u64 addr, u64 range,
-			    struct drm_gem_object *obj, u64 offset);
+			    const struct drm_gpuvm_map_req *req);
+struct drm_gpuva_ops *
+drm_gpuvm_madvise_ops_create(struct drm_gpuvm *gpuvm,
+			     const struct drm_gpuvm_map_req *req);
+
 struct drm_gpuva_ops *
 drm_gpuvm_sm_unmap_ops_create(struct drm_gpuvm *gpuvm,
 			      u64 addr, u64 range);
@@ -1079,8 +1083,10 @@ void drm_gpuva_ops_free(struct drm_gpuvm *gpuvm,
 static inline void drm_gpuva_init_from_op(struct drm_gpuva *va,
 					  struct drm_gpuva_op_map *op)
 {
-	drm_gpuva_init(va, op->va.addr, op->va.range,
-		       op->gem.obj, op->gem.offset);
+	va->va.addr = op->va.addr;
+	va->va.range = op->va.range;
+	va->gem.obj = op->gem.obj;
+	va->gem.offset = op->gem.offset;
 }
 
 /**
@@ -1205,16 +1211,14 @@ struct drm_gpuvm_ops {
 };
 
 int drm_gpuvm_sm_map(struct drm_gpuvm *gpuvm, void *priv,
-		     u64 addr, u64 range,
-		     struct drm_gem_object *obj, u64 offset);
+		     const struct drm_gpuvm_map_req *req);
 
 int drm_gpuvm_sm_unmap(struct drm_gpuvm *gpuvm, void *priv,
 		       u64 addr, u64 range);
 
 int drm_gpuvm_sm_map_exec_lock(struct drm_gpuvm *gpuvm,
 			  struct drm_exec *exec, unsigned int num_fences,
-			  u64 req_addr, u64 req_range,
-			  struct drm_gem_object *obj, u64 offset);
+			  struct drm_gpuvm_map_req *req);
 
 int drm_gpuvm_sm_unmap_exec_lock(struct drm_gpuvm *gpuvm, struct drm_exec *exec,
 				 u64 req_addr, u64 req_range);
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 16eeb9552064..3aba7b380c8d 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -342,6 +342,8 @@ ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, u8 cmd,
 			   const void *data, size_t len);
 ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data,
 			  size_t len);
+void mipi_dsi_dcs_read_multi(struct mipi_dsi_multi_context *ctx, u8 cmd,
+			     void *data, size_t len);
 int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi);
 int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi);
 int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode);
@@ -404,6 +406,22 @@ void mipi_dsi_dcs_set_tear_off_multi(struct mipi_dsi_multi_context *ctx);
 	} while (0)
 
 /**
+ * mipi_dsi_generic_write_var_seq_multi - transmit non-constant data using a
+ * generic write packet
+ *
+ * This macro will print errors for you and error handling is optimized for
+ * callers that call this multiple times in a row.
+ *
+ * @ctx: Context for multiple DSI transactions
+ * @seq: buffer containing the payload
+ */
+#define mipi_dsi_generic_write_var_seq_multi(ctx, seq...)	     \
+	do {							     \
+		const u8 d[] = { seq };				     \
+		mipi_dsi_generic_write_multi(ctx, d, ARRAY_SIZE(d)); \
+	} while (0)
+
+/**
  * mipi_dsi_dcs_write_seq_multi - transmit a DCS command with payload
  *
  * This macro will print errors for you and error handling is optimized for
@@ -420,6 +438,23 @@ void mipi_dsi_dcs_set_tear_off_multi(struct mipi_dsi_multi_context *ctx);
 	} while (0)
 
 /**
+ * mipi_dsi_dcs_write_var_seq_multi - transmit a DCS command with non-constant
+ * payload
+ *
+ * This macro will print errors for you and error handling is optimized for
+ * callers that call this multiple times in a row.
+ *
+ * @ctx: Context for multiple DSI transactions
+ * @cmd: Command
+ * @seq: buffer containing data to be transmitted
+ */
+#define mipi_dsi_dcs_write_var_seq_multi(ctx, cmd, seq...)		\
+	do {								\
+		const u8 d[] = { cmd, seq };				\
+		mipi_dsi_dcs_write_buffer_multi(ctx, d, ARRAY_SIZE(d));	\
+	} while (0)
+
+/**
  * mipi_dsi_dual - send the same MIPI DSI command to two interfaces
  *
  * This macro will send the specified MIPI DSI command twice, once per each of
diff --git a/include/uapi/drm/panthor_drm.h b/include/uapi/drm/panthor_drm.h
index e1f43deb7eca..467d365ed7ba 100644
--- a/include/uapi/drm/panthor_drm.h
+++ b/include/uapi/drm/panthor_drm.h
@@ -327,6 +327,9 @@ struct drm_panthor_gpu_info {
 
 	/** @pad: MBZ. */
 	__u32 pad;
+
+	/** @gpu_features: Bitmask describing supported GPU-wide features */
+	__u64 gpu_features;
 };
 
 /**