Merge branch '2023-08-22-assorted-code-cleanups' into next

- Assorted cleanups and fixes for a few tests, how we handle
  disks/partitions and bounce buffers.

3 files changed, 38 insertions, 11 deletions

diff --git a/include/blk.h b/include/blk.h
index 2c9c7985a88..b819f97c2f1 100644
--- a/include/blk.h
+++ b/include/blk.h
@@ -7,6 +7,7 @@
 #ifndef BLK_H
 #define BLK_H
 
+#include <bouncebuf.h>
 #include <dm/uclass-id.h>
 #include <efi.h>
 
@@ -260,9 +261,25 @@ struct blk_ops {
 	 * @return 0 if OK, -ve on error
 	 */
 	int (*select_hwpart)(struct udevice *dev, int hwpart);
-};
 
-#define blk_get_ops(dev)	((struct blk_ops *)(dev)->driver->ops)
+#if IS_ENABLED(CONFIG_BOUNCE_BUFFER)
+	/**
+	 * buffer_aligned() - test memory alignment of block operation buffer
+	 *
+	 * Some devices have limited DMA capabilities and require that the
+	 * buffers passed to them fit specific properties. This optional
+	 * callback can be used to indicate whether a buffer alignment is
+	 * suitable for the device DMA or not, and trigger use of generic
+	 * bounce buffer implementation to help use of unsuitable buffers
+	 * at the expense of performance degradation.
+	 *
+	 * @dev:	Block device associated with the request
+	 * @state:	Bounce buffer state
+	 * @return 1 if OK, 0 if unaligned
+	 */
+	int (*buffer_aligned)(struct udevice *dev, struct bounce_buffer *state);
+#endif	/* CONFIG_BOUNCE_BUFFER */
+};
 
 /*
  * These functions should take struct udevice instead of struct blk_desc,
diff --git a/include/part.h b/include/part.h
index 8e451bbdff9..be144768777 100644
--- a/include/part.h
+++ b/include/part.h
@@ -316,15 +316,6 @@ int part_get_bootable(struct blk_desc *desc);
 
 struct udevice;
 /**
- * part_create_block_devices - Create block devices for disk partitions
- *
- * Create UCLASS_PARTITION udevices for each of disk partitions in @parent
- *
- * @blk_dev:	Whole disk device
- */
-int part_create_block_devices(struct udevice *blk_dev);
-
-/**
  * disk_blk_read() - read blocks from a disk partition
  *
  * @dev:	Device to read from (UCLASS_PARTITION)
diff --git a/include/scsi.h b/include/scsi.h
index 9efefea99bb..ee9d622680d 100644
--- a/include/scsi.h
+++ b/include/scsi.h
@@ -7,6 +7,7 @@
  #define _SCSI_H
 
 #include <asm/cache.h>
+#include <bouncebuf.h>
 #include <linux/dma-direction.h>
 
 /* Fix this to the maximum */
@@ -298,6 +299,24 @@ struct scsi_ops {
 	 * @return 0 if OK, -ve on error
 	 */
 	int (*bus_reset)(struct udevice *dev);
+
+#if IS_ENABLED(CONFIG_BOUNCE_BUFFER)
+	/**
+	 * buffer_aligned() - test memory alignment of block operation buffer
+	 *
+	 * Some devices have limited DMA capabilities and require that the
+	 * buffers passed to them fit specific properties. This optional
+	 * callback can be used to indicate whether a buffer alignment is
+	 * suitable for the device DMA or not, and trigger use of generic
+	 * bounce buffer implementation to help use of unsuitable buffers
+	 * at the expense of performance degradation.
+	 *
+	 * @dev:	Block device associated with the request
+	 * @state:	Bounce buffer state
+	 * @return 1 if OK, 0 if unaligned
+	 */
+	int (*buffer_aligned)(struct udevice *dev, struct bounce_buffer *state);
+#endif	/* CONFIG_BOUNCE_BUFFER */
 };
 
 #define scsi_get_ops(dev)        ((struct scsi_ops *)(dev)->driver->ops)