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authorTejun Heo <htejun@gmail.com>2007-02-01 01:06:36 -0500
committerJeff Garzik <jeff@garzik.org>2007-02-09 17:39:38 -0500
commit0d5ff566779f894ca9937231a181eb31e4adff0e (patch)
treed1c7495c932581c1d41aa7f0fdb303348da49106 /drivers/ata/sata_promise.c
parent1a68ff13c8a9b517de3fd4187dc525412a6eba1b (diff)
libata: convert to iomap
Convert libata core layer and LLDs to use iomap. * managed iomap is used. Pointer to pcim_iomap_table() is cached at host->iomap and used through out LLDs. This basically replaces host->mmio_base. * if possible, pcim_iomap_regions() is used Most iomap operation conversions are taken from Jeff Garzik <jgarzik@pobox.com>'s iomap branch. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/sata_promise.c')
-rw-r--r--drivers/ata/sata_promise.c55
1 files changed, 27 insertions, 28 deletions
diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c
index e09c609d4961..4fb47cad8229 100644
--- a/drivers/ata/sata_promise.c
+++ b/drivers/ata/sata_promise.c
@@ -50,6 +50,8 @@
50 50
51 51
52enum { 52enum {
53 PDC_MMIO_BAR = 3,
54
53 /* register offsets */ 55 /* register offsets */
54 PDC_FEATURE = 0x04, /* Feature/Error reg (per port) */ 56 PDC_FEATURE = 0x04, /* Feature/Error reg (per port) */
55 PDC_SECTOR_COUNT = 0x08, /* Sector count reg (per port) */ 57 PDC_SECTOR_COUNT = 0x08, /* Sector count reg (per port) */
@@ -167,7 +169,7 @@ static const struct ata_port_operations pdc_sata_ops = {
167 .thaw = pdc_thaw, 169 .thaw = pdc_thaw,
168 .error_handler = pdc_error_handler, 170 .error_handler = pdc_error_handler,
169 .post_internal_cmd = pdc_post_internal_cmd, 171 .post_internal_cmd = pdc_post_internal_cmd,
170 .data_xfer = ata_mmio_data_xfer, 172 .data_xfer = ata_data_xfer,
171 .irq_handler = pdc_interrupt, 173 .irq_handler = pdc_interrupt,
172 .irq_clear = pdc_irq_clear, 174 .irq_clear = pdc_irq_clear,
173 175
@@ -192,7 +194,7 @@ static const struct ata_port_operations pdc_old_sata_ops = {
192 .thaw = pdc_thaw, 194 .thaw = pdc_thaw,
193 .error_handler = pdc_error_handler, 195 .error_handler = pdc_error_handler,
194 .post_internal_cmd = pdc_post_internal_cmd, 196 .post_internal_cmd = pdc_post_internal_cmd,
195 .data_xfer = ata_mmio_data_xfer, 197 .data_xfer = ata_data_xfer,
196 .irq_handler = pdc_interrupt, 198 .irq_handler = pdc_interrupt,
197 .irq_clear = pdc_irq_clear, 199 .irq_clear = pdc_irq_clear,
198 200
@@ -214,7 +216,7 @@ static const struct ata_port_operations pdc_pata_ops = {
214 216
215 .qc_prep = pdc_qc_prep, 217 .qc_prep = pdc_qc_prep,
216 .qc_issue = pdc_qc_issue_prot, 218 .qc_issue = pdc_qc_issue_prot,
217 .data_xfer = ata_mmio_data_xfer, 219 .data_xfer = ata_data_xfer,
218 .eng_timeout = pdc_eng_timeout, 220 .eng_timeout = pdc_eng_timeout,
219 .irq_handler = pdc_interrupt, 221 .irq_handler = pdc_interrupt,
220 .irq_clear = pdc_irq_clear, 222 .irq_clear = pdc_irq_clear,
@@ -348,7 +350,7 @@ static int pdc_port_start(struct ata_port *ap)
348 350
349static void pdc_reset_port(struct ata_port *ap) 351static void pdc_reset_port(struct ata_port *ap)
350{ 352{
351 void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_CTLSTAT; 353 void __iomem *mmio = ap->ioaddr.cmd_addr + PDC_CTLSTAT;
352 unsigned int i; 354 unsigned int i;
353 u32 tmp; 355 u32 tmp;
354 356
@@ -394,7 +396,7 @@ static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg)
394{ 396{
395 if (sc_reg > SCR_CONTROL || ap->cbl != ATA_CBL_SATA) 397 if (sc_reg > SCR_CONTROL || ap->cbl != ATA_CBL_SATA)
396 return 0xffffffffU; 398 return 0xffffffffU;
397 return readl((void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4)); 399 return readl(ap->ioaddr.scr_addr + (sc_reg * 4));
398} 400}
399 401
400 402
@@ -403,7 +405,7 @@ static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg,
403{ 405{
404 if (sc_reg > SCR_CONTROL || ap->cbl != ATA_CBL_SATA) 406 if (sc_reg > SCR_CONTROL || ap->cbl != ATA_CBL_SATA)
405 return; 407 return;
406 writel(val, (void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4)); 408 writel(val, ap->ioaddr.scr_addr + (sc_reg * 4));
407} 409}
408 410
409static void pdc_atapi_pkt(struct ata_queued_cmd *qc) 411static void pdc_atapi_pkt(struct ata_queued_cmd *qc)
@@ -627,7 +629,7 @@ static inline unsigned int pdc_host_intr( struct ata_port *ap,
627{ 629{
628 unsigned int handled = 0; 630 unsigned int handled = 0;
629 u32 tmp; 631 u32 tmp;
630 void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_GLOBAL_CTL; 632 void __iomem *mmio = ap->ioaddr.cmd_addr + PDC_GLOBAL_CTL;
631 633
632 tmp = readl(mmio); 634 tmp = readl(mmio);
633 if (tmp & PDC_ERR_MASK) { 635 if (tmp & PDC_ERR_MASK) {
@@ -656,7 +658,7 @@ static inline unsigned int pdc_host_intr( struct ata_port *ap,
656static void pdc_irq_clear(struct ata_port *ap) 658static void pdc_irq_clear(struct ata_port *ap)
657{ 659{
658 struct ata_host *host = ap->host; 660 struct ata_host *host = ap->host;
659 void __iomem *mmio = host->mmio_base; 661 void __iomem *mmio = host->iomap[PDC_MMIO_BAR];
660 662
661 readl(mmio + PDC_INT_SEQMASK); 663 readl(mmio + PDC_INT_SEQMASK);
662} 664}
@@ -672,12 +674,12 @@ static irqreturn_t pdc_interrupt (int irq, void *dev_instance)
672 674
673 VPRINTK("ENTER\n"); 675 VPRINTK("ENTER\n");
674 676
675 if (!host || !host->mmio_base) { 677 if (!host || !host->iomap[PDC_MMIO_BAR]) {
676 VPRINTK("QUICK EXIT\n"); 678 VPRINTK("QUICK EXIT\n");
677 return IRQ_NONE; 679 return IRQ_NONE;
678 } 680 }
679 681
680 mmio_base = host->mmio_base; 682 mmio_base = host->iomap[PDC_MMIO_BAR];
681 683
682 /* reading should also clear interrupts */ 684 /* reading should also clear interrupts */
683 mask = readl(mmio_base + PDC_INT_SEQMASK); 685 mask = readl(mmio_base + PDC_INT_SEQMASK);
@@ -722,18 +724,19 @@ static inline void pdc_packet_start(struct ata_queued_cmd *qc)
722{ 724{
723 struct ata_port *ap = qc->ap; 725 struct ata_port *ap = qc->ap;
724 struct pdc_port_priv *pp = ap->private_data; 726 struct pdc_port_priv *pp = ap->private_data;
727 void __iomem *mmio = ap->host->iomap[PDC_MMIO_BAR];
725 unsigned int port_no = ap->port_no; 728 unsigned int port_no = ap->port_no;
726 u8 seq = (u8) (port_no + 1); 729 u8 seq = (u8) (port_no + 1);
727 730
728 VPRINTK("ENTER, ap %p\n", ap); 731 VPRINTK("ENTER, ap %p\n", ap);
729 732
730 writel(0x00000001, ap->host->mmio_base + (seq * 4)); 733 writel(0x00000001, mmio + (seq * 4));
731 readl(ap->host->mmio_base + (seq * 4)); /* flush */ 734 readl(mmio + (seq * 4)); /* flush */
732 735
733 pp->pkt[2] = seq; 736 pp->pkt[2] = seq;
734 wmb(); /* flush PRD, pkt writes */ 737 wmb(); /* flush PRD, pkt writes */
735 writel(pp->pkt_dma, (void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); 738 writel(pp->pkt_dma, ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT);
736 readl((void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); /* flush */ 739 readl(ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); /* flush */
737} 740}
738 741
739static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc) 742static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc)
@@ -808,7 +811,7 @@ static int pdc_old_check_atapi_dma(struct ata_queued_cmd *qc)
808 return pdc_check_atapi_dma(qc); 811 return pdc_check_atapi_dma(qc);
809} 812}
810 813
811static void pdc_ata_setup_port(struct ata_ioports *port, unsigned long base) 814static void pdc_ata_setup_port(struct ata_ioports *port, void __iomem *base)
812{ 815{
813 port->cmd_addr = base; 816 port->cmd_addr = base;
814 port->data_addr = base; 817 port->data_addr = base;
@@ -828,7 +831,7 @@ static void pdc_ata_setup_port(struct ata_ioports *port, unsigned long base)
828 831
829static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe) 832static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe)
830{ 833{
831 void __iomem *mmio = pe->mmio_base; 834 void __iomem *mmio = pe->iomap[PDC_MMIO_BAR];
832 struct pdc_host_priv *hp = pe->private_data; 835 struct pdc_host_priv *hp = pe->private_data;
833 int hotplug_offset; 836 int hotplug_offset;
834 u32 tmp; 837 u32 tmp;
@@ -884,8 +887,7 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
884 static int printed_version; 887 static int printed_version;
885 struct ata_probe_ent *probe_ent; 888 struct ata_probe_ent *probe_ent;
886 struct pdc_host_priv *hp; 889 struct pdc_host_priv *hp;
887 unsigned long base; 890 void __iomem *base;
888 void __iomem *mmio_base;
889 unsigned int board_idx = (unsigned int) ent->driver_data; 891 unsigned int board_idx = (unsigned int) ent->driver_data;
890 int rc; 892 int rc;
891 u8 tmp; 893 u8 tmp;
@@ -897,11 +899,11 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
897 if (rc) 899 if (rc)
898 return rc; 900 return rc;
899 901
900 rc = pci_request_regions(pdev, DRV_NAME); 902 rc = pcim_iomap_regions(pdev, 1 << PDC_MMIO_BAR, DRV_NAME);
901 if (rc) { 903 if (rc == -EBUSY)
902 pcim_pin_device(pdev); 904 pcim_pin_device(pdev);
905 if (rc)
903 return rc; 906 return rc;
904 }
905 907
906 rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); 908 rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
907 if (rc) 909 if (rc)
@@ -917,11 +919,6 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
917 probe_ent->dev = pci_dev_to_dev(pdev); 919 probe_ent->dev = pci_dev_to_dev(pdev);
918 INIT_LIST_HEAD(&probe_ent->node); 920 INIT_LIST_HEAD(&probe_ent->node);
919 921
920 mmio_base = pcim_iomap(pdev, 3, 0);
921 if (mmio_base == NULL)
922 return -ENOMEM;
923 base = (unsigned long) mmio_base;
924
925 hp = devm_kzalloc(&pdev->dev, sizeof(*hp), GFP_KERNEL); 922 hp = devm_kzalloc(&pdev->dev, sizeof(*hp), GFP_KERNEL);
926 if (hp == NULL) 923 if (hp == NULL)
927 return -ENOMEM; 924 return -ENOMEM;
@@ -937,7 +934,9 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
937 934
938 probe_ent->irq = pdev->irq; 935 probe_ent->irq = pdev->irq;
939 probe_ent->irq_flags = IRQF_SHARED; 936 probe_ent->irq_flags = IRQF_SHARED;
940 probe_ent->mmio_base = mmio_base; 937 probe_ent->iomap = pcim_iomap_table(pdev);
938
939 base = probe_ent->iomap[PDC_MMIO_BAR];
941 940
942 pdc_ata_setup_port(&probe_ent->port[0], base + 0x200); 941 pdc_ata_setup_port(&probe_ent->port[0], base + 0x200);
943 pdc_ata_setup_port(&probe_ent->port[1], base + 0x280); 942 pdc_ata_setup_port(&probe_ent->port[1], base + 0x280);
@@ -964,7 +963,7 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
964 /* Fall through */ 963 /* Fall through */
965 case board_2037x: 964 case board_2037x:
966 /* TX2plus boards also have a PATA port */ 965 /* TX2plus boards also have a PATA port */
967 tmp = readb(mmio_base + PDC_FLASH_CTL+1); 966 tmp = readb(base + PDC_FLASH_CTL+1);
968 if (!(tmp & 0x80)) { 967 if (!(tmp & 0x80)) {
969 probe_ent->n_ports = 3; 968 probe_ent->n_ports = 3;
970 pdc_ata_setup_port(&probe_ent->port[2], base + 0x300); 969 pdc_ata_setup_port(&probe_ent->port[2], base + 0x300);