1 files changed, 45 insertions, 96 deletions

diff --git a/include/linux/libata.h b/include/linux/libata.h
index ab2754830322..596e0c18887d 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -31,7 +31,7 @@
 #include <linux/pci.h>
 #include <linux/dma-mapping.h>
 #include <asm/scatterlist.h>
-#include <asm/io.h>
+#include <linux/io.h>
 #include <linux/ata.h>
 #include <linux/workqueue.h>
 #include <scsi/scsi_host.h>
@@ -54,8 +54,6 @@
 #undef ATA_VERBOSE_DEBUG        /* yet more debugging output */
 #undef ATA_IRQ_TRAP             /* define to ack screaming irqs */
 #undef ATA_NDEBUG               /* define to disable quick runtime checks */
-#define ATA_ENABLE_PATA         /* define to enable PATA support in some
-                                 * low-level drivers */
 
 
 /* note: prints function name for you */
@@ -109,10 +107,6 @@ static inline u32 ata_msg_init(int dval, int default_msg_enable_bits)
 #define ATA_TAG_POISON          0xfafbfcfdU
 
 /* move to PCI layer? */
-#define PCI_VDEVICE(vendor, device)             \
-        PCI_VENDOR_ID_##vendor, (device),       \
-        PCI_ANY_ID, PCI_ANY_ID, 0, 0
-
 static inline struct device *pci_dev_to_dev(struct pci_dev *pdev)
 {
         return &pdev->dev;
@@ -177,6 +171,7 @@ enum {
                                               * Register FIS clearing BSY */
         ATA_FLAG_DEBUGMSG       = (1 << 13),
         ATA_FLAG_SETXFER_POLLING= (1 << 14), /* use polling for SETXFER */
+        ATA_FLAG_IGN_SIMPLEX    = (1 << 15), /* ignore SIMPLEX */
 
         /* The following flag belongs to ap->pflags but is kept in
          * ap->flags because it's referenced in many LLDs and will be
@@ -307,7 +302,7 @@ enum {
          * most devices.
          */
         ATA_SPINUP_WAIT         = 8000,
-        
+
         /* Horkage types. May be set by libata or controller on drives
            (some horkage may be drive/controller pair dependant */
 
@@ -351,21 +346,21 @@ typedef int (*ata_reset_fn_t)(struct ata_port *ap, unsigned int *classes);
 typedef void (*ata_postreset_fn_t)(struct ata_port *ap, unsigned int *classes);
 
 struct ata_ioports {
-        unsigned long           cmd_addr;
-        unsigned long           data_addr;
-        unsigned long           error_addr;
-        unsigned long           feature_addr;
-        unsigned long           nsect_addr;
-        unsigned long           lbal_addr;
-        unsigned long           lbam_addr;
-        unsigned long           lbah_addr;
-        unsigned long           device_addr;
-        unsigned long           status_addr;
-        unsigned long           command_addr;
-        unsigned long           altstatus_addr;
-        unsigned long           ctl_addr;
-        unsigned long           bmdma_addr;
-        unsigned long           scr_addr;
+        void __iomem            *cmd_addr;
+        void __iomem            *data_addr;
+        void __iomem            *error_addr;
+        void __iomem            *feature_addr;
+        void __iomem            *nsect_addr;
+        void __iomem            *lbal_addr;
+        void __iomem            *lbam_addr;
+        void __iomem            *lbah_addr;
+        void __iomem            *device_addr;
+        void __iomem            *status_addr;
+        void __iomem            *command_addr;
+        void __iomem            *altstatus_addr;
+        void __iomem            *ctl_addr;
+        void __iomem            *bmdma_addr;
+        void __iomem            *scr_addr;
 };
 
 struct ata_probe_ent {
@@ -384,7 +379,7 @@ struct ata_probe_ent {
         unsigned int            irq_flags;
         unsigned long           port_flags;
         unsigned long           _host_flags;
-        void __iomem            *mmio_base;
+        void __iomem * const    *iomap;
         void                    *private_data;
 
         /* port_info for the secondary port.  Together with irq2, it's
@@ -401,7 +396,7 @@ struct ata_host {
         struct device           *dev;
         unsigned long           irq;
         unsigned long           irq2;
-        void __iomem            *mmio_base;
+        void __iomem * const    *iomap;
         unsigned int            n_ports;
         void                    *private_data;
         const struct ata_port_operations *ops;
@@ -430,9 +425,6 @@ struct ata_queued_cmd {
 
         unsigned int            pad_len;
 
-        unsigned int            nsect;
-        unsigned int            cursect;
-
         unsigned int            nbytes;
         unsigned int            curbytes;
 
@@ -612,11 +604,11 @@ struct ata_port_operations {
         void (*dev_select)(struct ata_port *ap, unsigned int device);
 
         void (*phy_reset) (struct ata_port *ap); /* obsolete */
-        void (*set_mode) (struct ata_port *ap);
+        int  (*set_mode) (struct ata_port *ap, struct ata_device **r_failed_dev);
 
         void (*post_set_mode) (struct ata_port *ap);
 
-        int (*check_atapi_dma) (struct ata_queued_cmd *qc);
+        int  (*check_atapi_dma) (struct ata_queued_cmd *qc);
 
         void (*bmdma_setup) (struct ata_queued_cmd *qc);
         void (*bmdma_start) (struct ata_queued_cmd *qc);
@@ -638,6 +630,8 @@ struct ata_port_operations {
 
         irq_handler_t irq_handler;
         void (*irq_clear) (struct ata_port *);
+        u8 (*irq_on) (struct ata_port *);
+        u8 (*irq_ack) (struct ata_port *ap, unsigned int chk_drq);
 
         u32 (*scr_read) (struct ata_port *ap, unsigned int sc_reg);
         void (*scr_write) (struct ata_port *ap, unsigned int sc_reg,
@@ -719,20 +713,18 @@ extern int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_i
                              unsigned int n_ports);
 extern void ata_pci_remove_one (struct pci_dev *pdev);
 extern void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t mesg);
-extern void ata_pci_device_do_resume(struct pci_dev *pdev);
+extern int __must_check ata_pci_device_do_resume(struct pci_dev *pdev);
 extern int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
 extern int ata_pci_device_resume(struct pci_dev *pdev);
 extern int ata_pci_clear_simplex(struct pci_dev *pdev);
 #endif /* CONFIG_PCI */
 extern int ata_device_add(const struct ata_probe_ent *ent);
-extern void ata_port_detach(struct ata_port *ap);
+extern void ata_host_detach(struct ata_host *host);
 extern void ata_host_init(struct ata_host *, struct device *,
                           unsigned long, const struct ata_port_operations *);
-extern void ata_host_remove(struct ata_host *host);
 extern int ata_scsi_detect(struct scsi_host_template *sht);
 extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg);
 extern int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *));
-extern int ata_scsi_release(struct Scsi_Host *host);
 extern void ata_sas_port_destroy(struct ata_port *);
 extern struct ata_port *ata_sas_port_alloc(struct ata_host *,
                                            struct ata_port_info *, struct Scsi_Host *);
@@ -775,15 +767,11 @@ extern u8 ata_check_status(struct ata_port *ap);
 extern u8 ata_altstatus(struct ata_port *ap);
 extern void ata_exec_command(struct ata_port *ap, const struct ata_taskfile *tf);
 extern int ata_port_start (struct ata_port *ap);
-extern void ata_port_stop (struct ata_port *ap);
-extern void ata_host_stop (struct ata_host *host);
 extern irqreturn_t ata_interrupt (int irq, void *dev_instance);
-extern void ata_mmio_data_xfer(struct ata_device *adev, unsigned char *buf,
-                               unsigned int buflen, int write_data);
-extern void ata_pio_data_xfer(struct ata_device *adev, unsigned char *buf,
-                              unsigned int buflen, int write_data);
-extern void ata_pio_data_xfer_noirq(struct ata_device *adev, unsigned char *buf,
-                              unsigned int buflen, int write_data);
+extern void ata_data_xfer(struct ata_device *adev, unsigned char *buf,
+                          unsigned int buflen, int write_data);
+extern void ata_data_xfer_noirq(struct ata_device *adev, unsigned char *buf,
+                                unsigned int buflen, int write_data);
 extern void ata_qc_prep(struct ata_queued_cmd *qc);
 extern void ata_noop_qc_prep(struct ata_queued_cmd *qc);
 extern unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc);
@@ -825,6 +813,10 @@ extern void ata_scsi_slave_destroy(struct scsi_device *sdev);
 extern int ata_scsi_change_queue_depth(struct scsi_device *sdev,
                                        int queue_depth);
 extern struct ata_device *ata_dev_pair(struct ata_device *adev);
+extern u8 ata_irq_on(struct ata_port *ap);
+extern u8 ata_dummy_irq_on(struct ata_port *ap);
+extern u8 ata_irq_ack(struct ata_port *ap, unsigned int chk_drq);
+extern u8 ata_dummy_irq_ack(struct ata_port *ap, unsigned int chk_drq);
 
 /*
  * Timing helpers
@@ -863,7 +855,6 @@ struct pci_bits {
         unsigned long           val;
 };
 
-extern void ata_pci_host_stop (struct ata_host *host);
 extern struct ata_probe_ent *
 ata_pci_init_native_mode(struct pci_dev *pdev, struct ata_port_info **port, int portmask);
 extern int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bits);
@@ -1053,6 +1044,8 @@ static inline void ata_pause(struct ata_port *ap)
 /**
  *      ata_busy_wait - Wait for a port status register
  *      @ap: Port to wait for.
+ *      @bits: bits that must be clear
+ *      @max: number of 10uS waits to perform
  *
  *      Waits up to max*10 microseconds for the selected bits in the port's
  *      status register to be cleared.
@@ -1093,10 +1086,9 @@ static inline u8 ata_wait_idle(struct ata_port *ap)
         u8 status = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
 
         if (status != 0xff && (status & (ATA_BUSY | ATA_DRQ))) {
-                unsigned long l = ap->ioaddr.status_addr;
                 if (ata_msg_warn(ap))
-                        printk(KERN_WARNING "ATA: abnormal status 0x%X on port 0x%lX\n",
-                                status, l);
+                        printk(KERN_WARNING "ATA: abnormal status 0x%X on port 0x%p\n",
+                                status, ap->ioaddr.status_addr);
         }
 
         return status;
@@ -1143,12 +1135,14 @@ static inline void ata_tf_init(struct ata_device *dev, struct ata_taskfile *tf)
 
 static inline void ata_qc_reinit(struct ata_queued_cmd *qc)
 {
+        qc->dma_dir = DMA_NONE;
         qc->__sg = NULL;
         qc->flags = 0;
-        qc->cursect = qc->cursg = qc->cursg_ofs = 0;
-        qc->nsect = 0;
+        qc->cursg = qc->cursg_ofs = 0;
         qc->nbytes = qc->curbytes = 0;
+        qc->n_elem = 0;
         qc->err_mask = 0;
+        qc->pad_len = 0;
 
         ata_tf_init(qc->dev, &qc->tf);
 
@@ -1157,51 +1151,6 @@ static inline void ata_qc_reinit(struct ata_queued_cmd *qc)
         qc->result_tf.feature = 0;
 }
 
-/**
- *      ata_irq_ack - Acknowledge a device interrupt.
- *      @ap: Port on which interrupts are enabled.
- *
- *      Wait up to 10 ms for legacy IDE device to become idle (BUSY
- *      or BUSY+DRQ clear).  Obtain dma status and port status from
- *      device.  Clear the interrupt.  Return port status.
- *
- *      LOCKING:
- */
-
-static inline u8 ata_irq_ack(struct ata_port *ap, unsigned int chk_drq)
-{
-        unsigned int bits = chk_drq ? ATA_BUSY | ATA_DRQ : ATA_BUSY;
-        u8 host_stat, post_stat, status;
-
-        status = ata_busy_wait(ap, bits, 1000);
-        if (status & bits)
-                if (ata_msg_err(ap))
-                        printk(KERN_ERR "abnormal status 0x%X\n", status);
-
-        /* get controller status; clear intr, err bits */
-        if (ap->flags & ATA_FLAG_MMIO) {
-                void __iomem *mmio = (void __iomem *) ap->ioaddr.bmdma_addr;
-                host_stat = readb(mmio + ATA_DMA_STATUS);
-                writeb(host_stat | ATA_DMA_INTR | ATA_DMA_ERR,
-                       mmio + ATA_DMA_STATUS);
-
-                post_stat = readb(mmio + ATA_DMA_STATUS);
-        } else {
-                host_stat = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
-                outb(host_stat | ATA_DMA_INTR | ATA_DMA_ERR,
-                     ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
-
-                post_stat = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
-        }
-
-        if (ata_msg_intr(ap))
-                printk(KERN_INFO "%s: irq ack: host_stat 0x%X, new host_stat 0x%X, drv_stat 0x%X\n",
-                        __FUNCTION__,
-                        host_stat, post_stat, status);
-
-        return status;
-}
-
 static inline int ata_try_flush_cache(const struct ata_device *dev)
 {
         return ata_id_wcache_enabled(dev->id) ||
@@ -1229,14 +1178,14 @@ static inline unsigned int __ac_err_mask(u8 status)
 static inline int ata_pad_alloc(struct ata_port *ap, struct device *dev)
 {
         ap->pad_dma = 0;
-        ap->pad = dma_alloc_coherent(dev, ATA_DMA_PAD_BUF_SZ,
-                                     &ap->pad_dma, GFP_KERNEL);
+        ap->pad = dmam_alloc_coherent(dev, ATA_DMA_PAD_BUF_SZ,
+                                      &ap->pad_dma, GFP_KERNEL);
         return (ap->pad == NULL) ? -ENOMEM : 0;
 }
 
 static inline void ata_pad_free(struct ata_port *ap, struct device *dev)
 {
-        dma_free_coherent(dev, ATA_DMA_PAD_BUF_SZ, ap->pad, ap->pad_dma);
+        dmam_free_coherent(dev, ATA_DMA_PAD_BUF_SZ, ap->pad, ap->pad_dma);
 }
 
 static inline struct ata_port *ata_shost_to_port(struct Scsi_Host *host)