libata: convert ata_pci_init_native_mode() users to new init model

Convert drivers which use ata_pci_init_native_mode() to new init
model.  ata_pci_init_native_host() is used instead.  sata_nv, sata_uli
and sata_sis are in this category.

Tested on nVidia Corporation CK804 Serial ATA Controller [10de:0054]
in both BMDMA and ADMA mode.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

3 files changed, 80 insertions, 132 deletions

diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index 8a9473b16ec3..02169740ed24 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -369,7 +369,6 @@ static const struct ata_port_operations nv_generic_ops = {
         .error_handler          = nv_error_handler,
         .post_internal_cmd      = ata_bmdma_post_internal_cmd,
         .data_xfer              = ata_data_xfer,
-        .irq_handler            = nv_generic_interrupt,
         .irq_clear              = ata_bmdma_irq_clear,
         .irq_on                 = ata_irq_on,
         .irq_ack                = ata_irq_ack,
@@ -396,7 +395,6 @@ static const struct ata_port_operations nv_nf2_ops = {
         .error_handler          = nv_error_handler,
         .post_internal_cmd      = ata_bmdma_post_internal_cmd,
         .data_xfer              = ata_data_xfer,
-        .irq_handler            = nv_nf2_interrupt,
         .irq_clear              = ata_bmdma_irq_clear,
         .irq_on                 = ata_irq_on,
         .irq_ack                = ata_irq_ack,
@@ -423,7 +421,6 @@ static const struct ata_port_operations nv_ck804_ops = {
         .error_handler          = nv_error_handler,
         .post_internal_cmd      = ata_bmdma_post_internal_cmd,
         .data_xfer              = ata_data_xfer,
-        .irq_handler            = nv_ck804_interrupt,
         .irq_clear              = ata_bmdma_irq_clear,
         .irq_on                 = ata_irq_on,
         .irq_ack                = ata_irq_ack,
@@ -452,7 +449,6 @@ static const struct ata_port_operations nv_adma_ops = {
         .error_handler          = nv_adma_error_handler,
         .post_internal_cmd      = nv_adma_post_internal_cmd,
         .data_xfer              = ata_data_xfer,
-        .irq_handler            = nv_adma_interrupt,
         .irq_clear              = nv_adma_irq_clear,
         .irq_on                 = ata_irq_on,
         .irq_ack                = ata_irq_ack,
@@ -477,6 +473,7 @@ static struct ata_port_info nv_port_info[] = {
                 .mwdma_mask     = NV_MWDMA_MASK,
                 .udma_mask      = NV_UDMA_MASK,
                 .port_ops       = &nv_generic_ops,
+                .irq_handler    = nv_generic_interrupt,
         },
         /* nforce2/3 */
         {
@@ -487,6 +484,7 @@ static struct ata_port_info nv_port_info[] = {
                 .mwdma_mask     = NV_MWDMA_MASK,
                 .udma_mask      = NV_UDMA_MASK,
                 .port_ops       = &nv_nf2_ops,
+                .irq_handler    = nv_nf2_interrupt,
         },
         /* ck804 */
         {
@@ -497,6 +495,7 @@ static struct ata_port_info nv_port_info[] = {
                 .mwdma_mask     = NV_MWDMA_MASK,
                 .udma_mask      = NV_UDMA_MASK,
                 .port_ops       = &nv_ck804_ops,
+                .irq_handler    = nv_ck804_interrupt,
         },
         /* ADMA */
         {
@@ -508,6 +507,7 @@ static struct ata_port_info nv_port_info[] = {
                 .mwdma_mask     = NV_MWDMA_MASK,
                 .udma_mask      = NV_UDMA_MASK,
                 .port_ops       = &nv_adma_ops,
+                .irq_handler    = nv_adma_interrupt,
         },
 };
 
@@ -1079,14 +1079,14 @@ static int nv_adma_port_resume(struct ata_port *ap)
 }
 #endif
 
-static void nv_adma_setup_port(struct ata_probe_ent *probe_ent, unsigned int port)
+static void nv_adma_setup_port(struct ata_port *ap)
 {
-        void __iomem *mmio = probe_ent->iomap[NV_MMIO_BAR];
-        struct ata_ioports *ioport = &probe_ent->port[port];
+        void __iomem *mmio = ap->host->iomap[NV_MMIO_BAR];
+        struct ata_ioports *ioport = &ap->ioaddr;
 
         VPRINTK("ENTER\n");
 
-        mmio += NV_ADMA_PORT + port * NV_ADMA_PORT_SIZE;
+        mmio += NV_ADMA_PORT + ap->port_no * NV_ADMA_PORT_SIZE;
 
         ioport->cmd_addr        = mmio;
         ioport->data_addr       = mmio + (ATA_REG_DATA * 4);
@@ -1103,9 +1103,9 @@ static void nv_adma_setup_port(struct ata_probe_ent *probe_ent, unsigned int por
         ioport->ctl_addr        = mmio + 0x20;
 }
 
-static int nv_adma_host_init(struct ata_probe_ent *probe_ent)
+static int nv_adma_host_init(struct ata_host *host)
 {
-        struct pci_dev *pdev = to_pci_dev(probe_ent->dev);
+        struct pci_dev *pdev = to_pci_dev(host->dev);
         unsigned int i;
         u32 tmp32;
 
@@ -1120,8 +1120,8 @@ static int nv_adma_host_init(struct ata_probe_ent *probe_ent)
 
         pci_write_config_dword(pdev, NV_MCP_SATA_CFG_20, tmp32);
 
-        for (i = 0; i < probe_ent->n_ports; i++)
-                nv_adma_setup_port(probe_ent, i);
+        for (i = 0; i < host->n_ports; i++)
+                nv_adma_setup_port(host->ports[i]);
 
         return 0;
 }
@@ -1480,14 +1480,13 @@ static void nv_adma_error_handler(struct ata_port *ap)
 static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 {
         static int printed_version = 0;
-        struct ata_port_info *ppi[2];
-        struct ata_probe_ent *probe_ent;
+        const struct ata_port_info *ppi[2];
+        struct ata_host *host;
         struct nv_host_priv *hpriv;
         int rc;
         u32 bar;
         void __iomem *base;
         unsigned long type = ent->driver_data;
-        int mask_set = 0;
 
         // Make sure this is a SATA controller by counting the number of bars
         // (NVIDIA SATA controllers will always have six bars).  Otherwise,
@@ -1503,50 +1502,38 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
         if (rc)
                 return rc;
 
-        rc = pci_request_regions(pdev, DRV_NAME);
-        if (rc) {
-                pcim_pin_device(pdev);
-                return rc;
-        }
-
-        if(type >= CK804 && adma_enabled) {
+        /* determine type and allocate host */
+        if (type >= CK804 && adma_enabled) {
                 dev_printk(KERN_NOTICE, &pdev->dev, "Using ADMA mode\n");
                 type = ADMA;
-                if(!pci_set_dma_mask(pdev, DMA_64BIT_MASK) &&
-                   !pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK))
-                        mask_set = 1;
-        }
-
-        if(!mask_set) {
-                rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
-                if (rc)
-                        return rc;
-                rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
-                if (rc)
-                        return rc;
         }
 
-        rc = -ENOMEM;
+        ppi[0] = ppi[1] = &nv_port_info[type];
+        rc = ata_pci_prepare_native_host(pdev, ppi, 2, &host);
+        if (rc)
+                return rc;
 
         hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
         if (!hpriv)
                 return -ENOMEM;
+        hpriv->type = type;
+        host->private_data = hpriv;
 
-        ppi[0] = ppi[1] = &nv_port_info[type];
-        probe_ent = ata_pci_init_native_mode(pdev, ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY);
-        if (!probe_ent)
-                return -ENOMEM;
-
-        if (!pcim_iomap(pdev, NV_MMIO_BAR, 0))
-                return -EIO;
-        probe_ent->iomap = pcim_iomap_table(pdev);
+        /* set 64bit dma masks, may fail */
+        if (type == ADMA) {
+                if (pci_set_dma_mask(pdev, DMA_64BIT_MASK) == 0)
+                        pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
+        }
 
-        probe_ent->private_data = hpriv;
-        hpriv->type = type;
+        /* request and iomap NV_MMIO_BAR */
+        rc = pcim_iomap_regions(pdev, 1 << NV_MMIO_BAR, DRV_NAME);
+        if (rc)
+                return rc;
 
-        base = probe_ent->iomap[NV_MMIO_BAR];
-        probe_ent->port[0].scr_addr = base + NV_PORT0_SCR_REG_OFFSET;
-        probe_ent->port[1].scr_addr = base + NV_PORT1_SCR_REG_OFFSET;
+        /* configure SCR access */
+        base = host->iomap[NV_MMIO_BAR];
+        host->ports[0]->ioaddr.scr_addr = base + NV_PORT0_SCR_REG_OFFSET;
+        host->ports[1]->ioaddr.scr_addr = base + NV_PORT1_SCR_REG_OFFSET;
 
         /* enable SATA space for CK804 */
         if (type >= CK804) {
@@ -1557,20 +1544,16 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
                 pci_write_config_byte(pdev, NV_MCP_SATA_CFG_20, regval);
         }
 
-        pci_set_master(pdev);
-
+        /* init ADMA */
         if (type == ADMA) {
-                rc = nv_adma_host_init(probe_ent);
+                rc = nv_adma_host_init(host);
                 if (rc)
                         return rc;
         }
 
-        rc = ata_device_add(probe_ent);
-        if (rc != NV_PORTS)
-                return -ENODEV;
-
-        devm_kfree(&pdev->dev, probe_ent);
-        return 0;
+        pci_set_master(pdev);
+        return ata_host_activate(host, pdev->irq, ppi[0]->irq_handler,
+                                 IRQF_SHARED, ppi[0]->sht);
 }
 
 static void nv_remove_one (struct pci_dev *pdev)
diff --git a/drivers/ata/sata_sis.c b/drivers/ata/sata_sis.c
index a787f0d4a5ba..d8ee062e82fc 100644
--- a/drivers/ata/sata_sis.c
+++ b/drivers/ata/sata_sis.c
@@ -121,7 +121,6 @@ static const struct ata_port_operations sis_ops = {
         .thaw                   = ata_bmdma_thaw,
         .error_handler          = ata_bmdma_error_handler,
         .post_internal_cmd      = ata_bmdma_post_internal_cmd,
-        .irq_handler            = ata_interrupt,
         .irq_clear              = ata_bmdma_irq_clear,
         .irq_on                 = ata_irq_on,
         .irq_ack                = ata_irq_ack,
@@ -131,7 +130,6 @@ static const struct ata_port_operations sis_ops = {
 };
 
 static struct ata_port_info sis_port_info = {
-        .sht            = &sis_sht,
         .flags          = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY,
         .pio_mask       = 0x1f,
         .mwdma_mask     = 0x7,
@@ -256,12 +254,13 @@ static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
 static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 {
         static int printed_version;
-        struct ata_probe_ent *probe_ent = NULL;
-        int rc;
+        struct ata_port_info pi = sis_port_info;
+        const struct ata_port_info *ppi[2] = { &pi, &pi };
+        struct ata_host *host;
         u32 genctl, val;
-        struct ata_port_info pi = sis_port_info, *ppi[2] = { &pi, &pi };
         u8 pmr;
         u8 port2_start = 0x20;
+        int rc;
 
         if (!printed_version++)
                 dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
@@ -270,19 +269,6 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
         if (rc)
                 return rc;
 
-        rc = pci_request_regions(pdev, DRV_NAME);
-        if (rc) {
-                pcim_pin_device(pdev);
-                return rc;
-        }
-
-        rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
-        if (rc)
-                return rc;
-        rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
-        if (rc)
-                return rc;
-
         /* check and see if the SCRs are in IO space or PCI cfg space */
         pci_read_config_dword(pdev, SIS_GENCTL, &genctl);
         if ((genctl & GENCTL_IOMAPPED_SCR) == 0)
@@ -349,30 +335,26 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
                 break;
         }
 
-        probe_ent = ata_pci_init_native_mode(pdev, ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY);
-        if (!probe_ent)
-                return -ENOMEM;
+        rc = ata_pci_prepare_native_host(pdev, ppi, 2, &host);
+        if (rc)
+                return rc;
 
-        if (!(probe_ent->port_flags & SIS_FLAG_CFGSCR)) {
+        if (!(pi.flags & SIS_FLAG_CFGSCR)) {
                 void __iomem *mmio;
 
-                mmio = pcim_iomap(pdev, SIS_SCR_PCI_BAR, 0);
-                if (!mmio)
-                        return -ENOMEM;
+                rc = pcim_iomap_regions(pdev, 1 << SIS_SCR_PCI_BAR, DRV_NAME);
+                if (rc)
+                        return rc;
+                mmio = host->iomap[SIS_SCR_PCI_BAR];
 
-                probe_ent->port[0].scr_addr = mmio;
-                probe_ent->port[1].scr_addr = mmio + port2_start;
+                host->ports[0]->ioaddr.scr_addr = mmio;
+                host->ports[1]->ioaddr.scr_addr = mmio + port2_start;
         }
 
         pci_set_master(pdev);
         pci_intx(pdev, 1);
-
-        if (!ata_device_add(probe_ent))
-                return -EIO;
-
-        devm_kfree(&pdev->dev, probe_ent);
-        return 0;
-
+        return ata_host_activate(host, pdev->irq, ata_interrupt, IRQF_SHARED,
+                                 &sis_sht);
 }
 
 static int __init sis_init(void)
diff --git a/drivers/ata/sata_uli.c b/drivers/ata/sata_uli.c
index d659ace80f4f..f74e383de083 100644
--- a/drivers/ata/sata_uli.c
+++ b/drivers/ata/sata_uli.c
@@ -115,7 +115,6 @@ static const struct ata_port_operations uli_ops = {
         .error_handler          = ata_bmdma_error_handler,
         .post_internal_cmd      = ata_bmdma_post_internal_cmd,
 
-        .irq_handler            = ata_interrupt,
         .irq_clear              = ata_bmdma_irq_clear,
         .irq_on                 = ata_irq_on,
         .irq_ack                = ata_irq_ack,
@@ -127,7 +126,6 @@ static const struct ata_port_operations uli_ops = {
 };
 
 static struct ata_port_info uli_port_info = {
-        .sht            = &uli_sht,
         .flags          = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
                           ATA_FLAG_IGN_SIMPLEX,
         .pio_mask       = 0x1f,         /* pio0-4 */
@@ -185,12 +183,13 @@ static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
 static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 {
         static int printed_version;
-        struct ata_probe_ent *probe_ent;
-        struct ata_port_info *ppi[2];
-        int rc;
+        const struct ata_port_info *ppi[] = { &uli_port_info, NULL };
         unsigned int board_idx = (unsigned int) ent->driver_data;
+        struct ata_host *host;
         struct uli_priv *hpriv;
         void __iomem * const *iomap;
+        struct ata_ioports *ioaddr;
+        int n_ports, rc;
 
         if (!printed_version++)
                 dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
@@ -199,54 +198,42 @@ static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
         if (rc)
                 return rc;
 
-        rc = pci_request_regions(pdev, DRV_NAME);
-        if (rc) {
-                pcim_pin_device(pdev);
-                return rc;
-        }
-
-        rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
-        if (rc)
-                return rc;
-        rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
+        n_ports = 2;
+        if (board_idx == uli_5287)
+                n_ports = 4;
+        rc = ata_pci_prepare_native_host(pdev, ppi, n_ports, &host);
         if (rc)
                 return rc;
 
-        ppi[0] = ppi[1] = &uli_port_info;
-        probe_ent = ata_pci_init_native_mode(pdev, ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY);
-        if (!probe_ent)
-                return -ENOMEM;
-
         hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
         if (!hpriv)
                 return -ENOMEM;
+        host->private_data = hpriv;
 
-        probe_ent->private_data = hpriv;
-
-        iomap = pcim_iomap_table(pdev);
+        iomap = host->iomap;
 
         switch (board_idx) {
         case uli_5287:
                 hpriv->scr_cfg_addr[0] = ULI5287_BASE;
                 hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
-                probe_ent->n_ports = 4;
 
-                probe_ent->port[2].cmd_addr = iomap[0] + 8;
-                probe_ent->port[2].altstatus_addr =
-                probe_ent->port[2].ctl_addr = (void __iomem *)
+                ioaddr = &host->ports[2]->ioaddr;
+                ioaddr->cmd_addr = iomap[0] + 8;
+                ioaddr->altstatus_addr =
+                ioaddr->ctl_addr = (void __iomem *)
                         ((unsigned long)iomap[1] | ATA_PCI_CTL_OFS) + 4;
-                probe_ent->port[2].bmdma_addr = iomap[4] + 16;
+                ioaddr->bmdma_addr = iomap[4] + 16;
                 hpriv->scr_cfg_addr[2] = ULI5287_BASE + ULI5287_OFFS*4;
+                ata_std_ports(ioaddr);
 
-                probe_ent->port[3].cmd_addr = iomap[2] + 8;
-                probe_ent->port[3].altstatus_addr =
-                probe_ent->port[3].ctl_addr = (void __iomem *)
+                ioaddr = &host->ports[3]->ioaddr;
+                ioaddr->cmd_addr = iomap[2] + 8;
+                ioaddr->altstatus_addr =
+                ioaddr->ctl_addr = (void __iomem *)
                         ((unsigned long)iomap[3] | ATA_PCI_CTL_OFS) + 4;
-                probe_ent->port[3].bmdma_addr = iomap[4] + 24;
+                ioaddr->bmdma_addr = iomap[4] + 24;
                 hpriv->scr_cfg_addr[3] = ULI5287_BASE + ULI5287_OFFS*5;
-
-                ata_std_ports(&probe_ent->port[2]);
-                ata_std_ports(&probe_ent->port[3]);
+                ata_std_ports(ioaddr);
                 break;
 
         case uli_5289:
@@ -266,12 +253,8 @@ static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 
         pci_set_master(pdev);
         pci_intx(pdev, 1);
-
-        if (!ata_device_add(probe_ent))
-                return -ENODEV;
-
-        devm_kfree(&pdev->dev, probe_ent);
-        return 0;
+        return ata_host_activate(host, pdev->irq, ata_interrupt, IRQF_SHARED,
+                                 &uli_sht);
 }
 
 static int __init uli_init(void)