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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/drivers/block/umem.c
..
..
@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
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2
 /*
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  * mm.c - Micro Memory(tm) PCI memory board block device driver - v2.3
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4
  *
..
..
@@ -7,10 +8,6 @@
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  *
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  * This driver for the Micro Memory PCI Memory Module with Battery Backup
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  * is Copyright Micro Memory Inc 2001-2002.  All rights reserved.
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- *
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- * This driver is released to the public under the terms of the
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- *  GNU GENERAL PUBLIC LICENSE version 2
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- * See the file COPYING for details.
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11
  *
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12
  * This driver provides a standard block device interface for Micro Memory(tm)
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  * PCI based RAM boards.
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@@ -363,12 +360,12 @@
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360
 
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 	vec = bio_iter_iovec(bio, card->current_iter);
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362
 
366
-	dma_handle = pci_map_page(card->dev,
363
+	dma_handle = dma_map_page(&card->dev->dev,
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364
 				  vec.bv_page,
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365
 				  vec.bv_offset,
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366
 				  vec.bv_len,
370
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 				  bio_op(bio) == REQ_OP_READ ?
371
-				  PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE);
368
+				  DMA_FROM_DEVICE : DMA_TO_DEVICE);
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369
 
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 	p = &card->mm_pages[card->Ready];
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 	desc = &p->desc[p->cnt];
..
..
@@ -421,7 +418,7 @@
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 	struct cardinfo *card = (struct cardinfo *)data;
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419
 	unsigned int dma_status = card->dma_status;
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420
 
424
-	spin_lock_bh(&card->lock);
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+	spin_lock(&card->lock);
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 	if (card->Active < 0)
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423
 		goto out_unlock;
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 	page = &card->mm_pages[card->Active];
..
..
@@ -448,10 +445,10 @@
448
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 				page->iter = page->bio->bi_iter;
449
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 		}
450
447
 
451
-		pci_unmap_page(card->dev, desc->data_dma_handle,
448
+		dma_unmap_page(&card->dev->dev, desc->data_dma_handle,
452
449
 			       vec.bv_len,
453
450
 				 (control & DMASCR_TRANSFER_READ) ?
454
-				PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
451
+				DMA_TO_DEVICE : DMA_FROM_DEVICE);
455
452
 		if (control & DMASCR_HARD_ERROR) {
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453
 			/* error */
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 			bio->bi_status = BLK_STS_IOERR;
..
..
@@ -496,7 +493,7 @@
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 		mm_start_io(card);
497
494
 	}
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495
  out_unlock:
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-	spin_unlock_bh(&card->lock);
496
+	spin_unlock(&card->lock);
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497
 
501
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 	while (return_bio) {
502
499
 		struct bio *bio = return_bio;
..
..
@@ -522,14 +519,15 @@
522
519
 	return !!blk_check_plugged(mm_unplug, card, sizeof(struct blk_plug_cb));
523
520
 }
524
521
 
525
-static blk_qc_t mm_make_request(struct request_queue *q, struct bio *bio)
522
+static blk_qc_t mm_submit_bio(struct bio *bio)
526
523
 {
527
-	struct cardinfo *card = q->queuedata;
524
+	struct cardinfo *card = bio->bi_disk->private_data;
525
+
528
526
 	pr_debug("mm_make_request %llu %u\n",
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 		 (unsigned long long)bio->bi_iter.bi_sector,
530
528
 		 bio->bi_iter.bi_size);
531
529
 
532
-	blk_queue_split(q, &bio);
530
+	blk_queue_split(&bio);
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531
 
534
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 	spin_lock_irq(&card->lock);
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533
 	*card->biotail = bio;
..
..
@@ -781,13 +779,14 @@
781
779
 
782
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 static const struct block_device_operations mm_fops = {
783
781
 	.owner		= THIS_MODULE,
782
+	.submit_bio	= mm_submit_bio,
784
783
 	.getgeo		= mm_getgeo,
785
784
 	.revalidate_disk = mm_revalidate,
786
785
 };
787
786
 
788
787
 static int mm_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
789
788
 {
790
-	int ret = -ENODEV;
789
+	int ret;
791
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 	struct cardinfo *card = &cards[num_cards];
792
791
 	unsigned char	mem_present;
793
792
 	unsigned char	batt_status;
..
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@@ -817,8 +816,8 @@
817
816
 	dev_printk(KERN_INFO, &dev->dev,
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 	  "Micro Memory(tm) controller found (PCI Mem Module (Battery Backup))\n");
819
818
 
820
-	if (pci_set_dma_mask(dev, DMA_BIT_MASK(64)) &&
821
-	    pci_set_dma_mask(dev, DMA_BIT_MASK(32))) {
819
+	if (dma_set_mask(&dev->dev, DMA_BIT_MASK(64)) &&
820
+	    dma_set_mask(&dev->dev, DMA_BIT_MASK(32))) {
822
821
 		dev_printk(KERN_WARNING, &dev->dev, "NO suitable DMA found\n");
823
822
 		return  -ENOMEM;
824
823
 	}
..
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@@ -830,7 +829,7 @@
830
829
 		goto failed_req_csr;
831
830
 	}
832
831
 
833
-	card->csr_remap = ioremap_nocache(csr_base, csr_len);
832
+	card->csr_remap = ioremap(csr_base, csr_len);
834
833
 	if (!card->csr_remap) {
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 		dev_printk(KERN_ERR, &card->dev->dev,
836
835
 			"Unable to remap memory region\n");
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@@ -871,15 +870,14 @@
871
870
 		goto failed_magic;
872
871
 	}
873
872
 
874
-	card->mm_pages[0].desc = pci_alloc_consistent(card->dev,
875
-						PAGE_SIZE * 2,
876
-						&card->mm_pages[0].page_dma);
877
-	card->mm_pages[1].desc = pci_alloc_consistent(card->dev,
878
-						PAGE_SIZE * 2,
879
-						&card->mm_pages[1].page_dma);
873
+	card->mm_pages[0].desc = dma_alloc_coherent(&card->dev->dev,
874
+			PAGE_SIZE * 2, &card->mm_pages[0].page_dma, GFP_KERNEL);
875
+	card->mm_pages[1].desc = dma_alloc_coherent(&card->dev->dev,
876
+			PAGE_SIZE * 2, &card->mm_pages[1].page_dma, GFP_KERNEL);
880
877
 	if (card->mm_pages[0].desc == NULL ||
881
878
 	    card->mm_pages[1].desc == NULL) {
882
879
 		dev_printk(KERN_ERR, &card->dev->dev, "alloc failed\n");
880
+		ret = -ENOMEM;
883
881
 		goto failed_alloc;
884
882
 	}
885
883
 	reset_page(&card->mm_pages[0]);
..
..
@@ -890,13 +888,11 @@
890
888
 	card->biotail = &card->bio;
891
889
 	spin_lock_init(&card->lock);
892
890
 
893
-	card->queue = blk_alloc_queue_node(GFP_KERNEL, NUMA_NO_NODE,
894
-					   &card->lock);
895
-	if (!card->queue)
891
+	card->queue = blk_alloc_queue(NUMA_NO_NODE);
892
+	if (!card->queue) {
893
+		ret = -ENOMEM;
896
894
 		goto failed_alloc;
897
-
898
-	blk_queue_make_request(card->queue, mm_make_request);
899
-	card->queue->queuedata = card;
895
+	}
900
896
 
901
897
 	tasklet_init(&card->tasklet, process_page, (unsigned long)card);
902
898
 
..
..
@@ -1002,13 +998,13 @@
1002
998
  failed_req_irq:
1003
999
  failed_alloc:
1004
1000
 	if (card->mm_pages[0].desc)
1005
-		pci_free_consistent(card->dev, PAGE_SIZE*2,
1006
-				    card->mm_pages[0].desc,
1007
-				    card->mm_pages[0].page_dma);
1001
+		dma_free_coherent(&card->dev->dev, PAGE_SIZE * 2,
1002
+				  card->mm_pages[0].desc,
1003
+				  card->mm_pages[0].page_dma);
1008
1004
 	if (card->mm_pages[1].desc)
1009
-		pci_free_consistent(card->dev, PAGE_SIZE*2,
1010
-				    card->mm_pages[1].desc,
1011
-				    card->mm_pages[1].page_dma);
1005
+		dma_free_coherent(&card->dev->dev, PAGE_SIZE * 2,
1006
+				  card->mm_pages[1].desc,
1007
+				  card->mm_pages[1].page_dma);
1012
1008
  failed_magic:
1013
1009
 	iounmap(card->csr_remap);
1014
1010
  failed_remap_csr:
..
..
@@ -1027,11 +1023,11 @@
1027
1023
 	iounmap(card->csr_remap);
1028
1024
 
1029
1025
 	if (card->mm_pages[0].desc)
1030
-		pci_free_consistent(card->dev, PAGE_SIZE*2,
1026
+		dma_free_coherent(&card->dev->dev, PAGE_SIZE * 2,
1031
1027
 				    card->mm_pages[0].desc,
1032
1028
 				    card->mm_pages[0].page_dma);
1033
1029
 	if (card->mm_pages[1].desc)
1034
-		pci_free_consistent(card->dev, PAGE_SIZE*2,
1030
+		dma_free_coherent(&card->dev->dev, PAGE_SIZE * 2,
1035
1031
 				    card->mm_pages[1].desc,
1036
1032
 				    card->mm_pages[1].page_dma);
1037
1033
 	blk_cleanup_queue(card->queue);