scsi: pm8001: switch to generic DMA API

Switch from the legacy PCI DMA API to the generic DMA API.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

4 files changed, 31 insertions, 49 deletions

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index e37ab9789ba6..d0bb357034d8 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -2420,7 +2420,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
 			sata_resp = &psataPayload->sata_resp[0];
 			resp = (struct ata_task_resp *)ts->buf;
 			if (t->ata_task.dma_xfer == 0 &&
-			t->data_dir == PCI_DMA_FROMDEVICE) {
+			    t->data_dir == DMA_FROM_DEVICE) {
 				len = sizeof(struct pio_setup_fis);
 				PM8001_IO_DBG(pm8001_ha,
 				pm8001_printk("PIO read len = %d\n", len));
@@ -4203,12 +4203,12 @@ static int process_oq(struct pm8001_hba_info *pm8001_ha, u8 vec)
 	return ret;
 }
 
-/* PCI_DMA_... to our direction translation. */
+/* DMA_... to our direction translation. */
 static const u8 data_dir_flags[] = {
-	[PCI_DMA_BIDIRECTIONAL] = DATA_DIR_BYRECIPIENT,/* UNSPECIFIED */
-	[PCI_DMA_TODEVICE]	= DATA_DIR_OUT,/* OUTBOUND */
-	[PCI_DMA_FROMDEVICE]	= DATA_DIR_IN,/* INBOUND */
-	[PCI_DMA_NONE]		= DATA_DIR_NONE,/* NO TRANSFER */
+	[DMA_BIDIRECTIONAL]	= DATA_DIR_BYRECIPIENT,	/* UNSPECIFIED */
+	[DMA_TO_DEVICE]		= DATA_DIR_OUT,		/* OUTBOUND */
+	[DMA_FROM_DEVICE]	= DATA_DIR_IN,		/* INBOUND */
+	[DMA_NONE]		= DATA_DIR_NONE,	/* NO TRANSFER */
 };
 void
 pm8001_chip_make_sg(struct scatterlist *scatter, int nr, void *prd)
@@ -4255,13 +4255,13 @@ static int pm8001_chip_smp_req(struct pm8001_hba_info *pm8001_ha,
 	 * DMA-map SMP request, response buffers
 	 */
 	sg_req = &task->smp_task.smp_req;
-	elem = dma_map_sg(pm8001_ha->dev, sg_req, 1, PCI_DMA_TODEVICE);
+	elem = dma_map_sg(pm8001_ha->dev, sg_req, 1, DMA_TO_DEVICE);
 	if (!elem)
 		return -ENOMEM;
 	req_len = sg_dma_len(sg_req);
 
 	sg_resp = &task->smp_task.smp_resp;
-	elem = dma_map_sg(pm8001_ha->dev, sg_resp, 1, PCI_DMA_FROMDEVICE);
+	elem = dma_map_sg(pm8001_ha->dev, sg_resp, 1, DMA_FROM_DEVICE);
 	if (!elem) {
 		rc = -ENOMEM;
 		goto err_out;
@@ -4294,10 +4294,10 @@ static int pm8001_chip_smp_req(struct pm8001_hba_info *pm8001_ha,
 
 err_out_2:
 	dma_unmap_sg(pm8001_ha->dev, &ccb->task->smp_task.smp_resp, 1,
-			PCI_DMA_FROMDEVICE);
+			DMA_FROM_DEVICE);
 err_out:
 	dma_unmap_sg(pm8001_ha->dev, &ccb->task->smp_task.smp_req, 1,
-			PCI_DMA_TODEVICE);
+			DMA_TO_DEVICE);
 	return rc;
 }
 
@@ -4376,7 +4376,7 @@ static int pm8001_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
 	u32  opc = OPC_INB_SATA_HOST_OPSTART;
 	memset(&sata_cmd, 0, sizeof(sata_cmd));
 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
-	if (task->data_dir == PCI_DMA_NONE) {
+	if (task->data_dir == DMA_NONE) {
 		ATAP = 0x04;  /* no data*/
 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("no data\n"));
 	} else if (likely(!task->ata_task.device_control_reg_update)) {
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index 501830caba21..d71e7e4ec29c 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -152,7 +152,7 @@ static void pm8001_free(struct pm8001_hba_info *pm8001_ha)
 
 	for (i = 0; i < USI_MAX_MEMCNT; i++) {
 		if (pm8001_ha->memoryMap.region[i].virt_ptr != NULL) {
-			pci_free_consistent(pm8001_ha->pdev,
+			dma_free_coherent(&pm8001_ha->pdev->dev,
 				(pm8001_ha->memoryMap.region[i].total_len +
 				pm8001_ha->memoryMap.region[i].alignment),
 				pm8001_ha->memoryMap.region[i].virt_ptr,
@@ -501,30 +501,12 @@ static int pci_go_44(struct pci_dev *pdev)
 {
 	int rc;
 
-	if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(44))) {
-		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(44));
-		if (rc) {
-			rc = pci_set_consistent_dma_mask(pdev,
-				DMA_BIT_MASK(32));
-			if (rc) {
-				dev_printk(KERN_ERR, &pdev->dev,
-					"44-bit DMA enable failed\n");
-				return rc;
-			}
-		}
-	} else {
-		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
-		if (rc) {
+	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(44));
+	if (rc) {
+		rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+		if (rc)
 			dev_printk(KERN_ERR, &pdev->dev,
 				"32-bit DMA enable failed\n");
-			return rc;
-		}
-		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
-		if (rc) {
-			dev_printk(KERN_ERR, &pdev->dev,
-				"32-bit consistent DMA enable failed\n");
-			return rc;
-		}
 	}
 	return rc;
 }
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index 84092e4e1aa9..b3be49d41375 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -116,8 +116,8 @@ int pm8001_mem_alloc(struct pci_dev *pdev, void **virt_addr,
 	u64 align_offset = 0;
 	if (align)
 		align_offset = (dma_addr_t)align - 1;
-	mem_virt_alloc = pci_zalloc_consistent(pdev, mem_size + align,
-					       &mem_dma_handle);
+	mem_virt_alloc = dma_zalloc_coherent(&pdev->dev, mem_size + align,
+			&mem_dma_handle, GFP_KERNEL);
 	if (!mem_virt_alloc) {
 		pm8001_printk("memory allocation error\n");
 		return -1;
@@ -533,9 +533,9 @@ void pm8001_ccb_task_free(struct pm8001_hba_info *pm8001_ha,
 	switch (task->task_proto) {
 	case SAS_PROTOCOL_SMP:
 		dma_unmap_sg(pm8001_ha->dev, &task->smp_task.smp_resp, 1,
-			PCI_DMA_FROMDEVICE);
+			DMA_FROM_DEVICE);
 		dma_unmap_sg(pm8001_ha->dev, &task->smp_task.smp_req, 1,
-			PCI_DMA_TODEVICE);
+			DMA_TO_DEVICE);
 		break;
 
 	case SAS_PROTOCOL_SATA:
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index 9864a3c7547b..63e4f7d34d6c 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -2133,7 +2133,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
 			sata_resp = &psataPayload->sata_resp[0];
 			resp = (struct ata_task_resp *)ts->buf;
 			if (t->ata_task.dma_xfer == 0 &&
-			t->data_dir == PCI_DMA_FROMDEVICE) {
+			    t->data_dir == DMA_FROM_DEVICE) {
 				len = sizeof(struct pio_setup_fis);
 				PM8001_IO_DBG(pm8001_ha,
 				pm8001_printk("PIO read len = %d\n", len));
@@ -3855,12 +3855,12 @@ static int process_oq(struct pm8001_hba_info *pm8001_ha, u8 vec)
 	return ret;
 }
 
-/* PCI_DMA_... to our direction translation. */
+/* DMA_... to our direction translation. */
 static const u8 data_dir_flags[] = {
-	[PCI_DMA_BIDIRECTIONAL] = DATA_DIR_BYRECIPIENT,/* UNSPECIFIED */
-	[PCI_DMA_TODEVICE]	= DATA_DIR_OUT,/* OUTBOUND */
-	[PCI_DMA_FROMDEVICE]	= DATA_DIR_IN,/* INBOUND */
-	[PCI_DMA_NONE]		= DATA_DIR_NONE,/* NO TRANSFER */
+	[DMA_BIDIRECTIONAL]	= DATA_DIR_BYRECIPIENT,	/* UNSPECIFIED */
+	[DMA_TO_DEVICE]		= DATA_DIR_OUT,		/* OUTBOUND */
+	[DMA_FROM_DEVICE]	= DATA_DIR_IN,		/* INBOUND */
+	[DMA_NONE]		= DATA_DIR_NONE,	/* NO TRANSFER */
 };
 
 static void build_smp_cmd(u32 deviceID, __le32 hTag,
@@ -3902,13 +3902,13 @@ static int pm80xx_chip_smp_req(struct pm8001_hba_info *pm8001_ha,
 	 * DMA-map SMP request, response buffers
 	 */
 	sg_req = &task->smp_task.smp_req;
-	elem = dma_map_sg(pm8001_ha->dev, sg_req, 1, PCI_DMA_TODEVICE);
+	elem = dma_map_sg(pm8001_ha->dev, sg_req, 1, DMA_TO_DEVICE);
 	if (!elem)
 		return -ENOMEM;
 	req_len = sg_dma_len(sg_req);
 
 	sg_resp = &task->smp_task.smp_resp;
-	elem = dma_map_sg(pm8001_ha->dev, sg_resp, 1, PCI_DMA_FROMDEVICE);
+	elem = dma_map_sg(pm8001_ha->dev, sg_resp, 1, DMA_FROM_DEVICE);
 	if (!elem) {
 		rc = -ENOMEM;
 		goto err_out;
@@ -3999,10 +3999,10 @@ static int pm80xx_chip_smp_req(struct pm8001_hba_info *pm8001_ha,
 
 err_out_2:
 	dma_unmap_sg(pm8001_ha->dev, &ccb->task->smp_task.smp_resp, 1,
-			PCI_DMA_FROMDEVICE);
+			DMA_FROM_DEVICE);
 err_out:
 	dma_unmap_sg(pm8001_ha->dev, &ccb->task->smp_task.smp_req, 1,
-			PCI_DMA_TODEVICE);
+			DMA_TO_DEVICE);
 	return rc;
 }
 
@@ -4226,7 +4226,7 @@ static int pm80xx_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
 	q_index = (u32) (pm8001_ha_dev->id & 0x00ffffff) % PM8001_MAX_INB_NUM;
 	circularQ = &pm8001_ha->inbnd_q_tbl[q_index];
 
-	if (task->data_dir == PCI_DMA_NONE) {
+	if (task->data_dir == DMA_NONE) {
 		ATAP = 0x04; /* no data*/
 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("no data\n"));
 	} else if (likely(!task->ata_task.device_control_reg_update)) {