add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/scsi/am53c974.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * AMD am53c974 driver.
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  * Copyright (c) 2014 Hannes Reinecke, SUSE Linux GmbH
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@@ -96,9 +97,7 @@
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 static inline struct pci_esp_priv *pci_esp_get_priv(struct esp *esp)
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 {
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-	struct pci_dev *pdev = esp->dev;
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-
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-	return pci_get_drvdata(pdev);
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+	return dev_get_drvdata(esp->dev);
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 }
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 static void pci_esp_write8(struct esp *esp, u8 val, unsigned long reg)
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@@ -114,30 +113,6 @@
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 static void pci_esp_write32(struct esp *esp, u32 val, unsigned long reg)
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 {
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 	return iowrite32(val, esp->regs + (reg * 4UL));
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-}
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-
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-static dma_addr_t pci_esp_map_single(struct esp *esp, void *buf,
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-				     size_t sz, int dir)
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-{
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-	return pci_map_single(esp->dev, buf, sz, dir);
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-}
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-
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-static int pci_esp_map_sg(struct esp *esp, struct scatterlist *sg,
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-			  int num_sg, int dir)
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-{
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-	return pci_map_sg(esp->dev, sg, num_sg, dir);
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-}
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-
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-static void pci_esp_unmap_single(struct esp *esp, dma_addr_t addr,
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-				 size_t sz, int dir)
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-{
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-	pci_unmap_single(esp->dev, addr, sz, dir);
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-}
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-
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-static void pci_esp_unmap_sg(struct esp *esp, struct scatterlist *sg,
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-			     int num_sg, int dir)
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-{
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-	pci_unmap_sg(esp->dev, sg, num_sg, dir);
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 }
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 static int pci_esp_irq_pending(struct esp *esp)
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@@ -295,10 +270,6 @@
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 static const struct esp_driver_ops pci_esp_ops = {
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 	.esp_write8	=	pci_esp_write8,
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 	.esp_read8	=	pci_esp_read8,
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-	.map_single	=	pci_esp_map_single,
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-	.map_sg		=	pci_esp_map_sg,
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-	.unmap_single	=	pci_esp_unmap_single,
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-	.unmap_sg	=	pci_esp_unmap_sg,
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 	.irq_pending	=	pci_esp_irq_pending,
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 	.reset_dma	=	pci_esp_reset_dma,
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 	.dma_drain	=	pci_esp_dma_drain,
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@@ -375,18 +346,18 @@
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 static void dc390_check_eeprom(struct esp *esp)
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 {
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+	struct pci_dev *pdev = to_pci_dev(esp->dev);
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 	u8 EEbuf[128];
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 	u16 *ptr = (u16 *)EEbuf, wval = 0;
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 	int i;
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-	dc390_read_eeprom((struct pci_dev *)esp->dev, ptr);
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+	dc390_read_eeprom(pdev, ptr);
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 	for (i = 0; i < DC390_EEPROM_LEN; i++, ptr++)
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 		wval += *ptr;
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 	/* no Tekram EEprom found */
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 	if (wval != 0x1234) {
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-		struct pci_dev *pdev = esp->dev;
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 		dev_printk(KERN_INFO, &pdev->dev,
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 			   "No valid Tekram EEprom found\n");
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 		return;
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@@ -411,7 +382,7 @@
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 		return -ENODEV;
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 	}
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-	if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
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+	if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
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 		dev_printk(KERN_INFO, &pdev->dev,
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 			   "failed to set 32bit DMA mask\n");
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 		goto fail_disable_device;
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@@ -435,7 +406,7 @@
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 	esp = shost_priv(shost);
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 	esp->host = shost;
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-	esp->dev = pdev;
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+	esp->dev = &pdev->dev;
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 	esp->ops = &pci_esp_ops;
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 	/*
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 	 * The am53c974 HBA has a design flaw of generating
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@@ -467,8 +438,8 @@
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 	pci_set_master(pdev);
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-	esp->command_block = pci_alloc_consistent(pdev, 16,
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-						  &esp->command_block_dma);
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+	esp->command_block = dma_alloc_coherent(&pdev->dev, 16,
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+			&esp->command_block_dma, GFP_KERNEL);
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 	if (!esp->command_block) {
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 		dev_printk(KERN_ERR, &pdev->dev,
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 			   "failed to allocate command block\n");
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@@ -498,7 +469,7 @@
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 	/* Assume 40MHz clock */
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 	esp->cfreq = 40000000;
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-	err = scsi_esp_register(esp, &pdev->dev);
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+	err = scsi_esp_register(esp);
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 	if (err)
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 		goto fail_free_irq;
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@@ -508,8 +479,8 @@
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 	free_irq(pdev->irq, esp);
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 fail_unmap_command_block:
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 	pci_set_drvdata(pdev, NULL);
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-	pci_free_consistent(pdev, 16, esp->command_block,
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-			    esp->command_block_dma);
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+	dma_free_coherent(&pdev->dev, 16, esp->command_block,
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+			  esp->command_block_dma);
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 fail_unmap_regs:
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 	pci_iounmap(pdev, esp->regs);
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 fail_release_regions:
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@@ -532,8 +503,8 @@
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 	scsi_esp_unregister(esp);
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 	free_irq(pdev->irq, esp);
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 	pci_set_drvdata(pdev, NULL);
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-	pci_free_consistent(pdev, 16, esp->command_block,
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-			    esp->command_block_dma);
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+	dma_free_coherent(&pdev->dev, 16, esp->command_block,
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+			  esp->command_block_dma);
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 	pci_iounmap(pdev, esp->regs);
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 	pci_release_regions(pdev);
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 	pci_disable_device(pdev);