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)) {