Merge branch 'linus' into x86/gart

1 files changed, 163 insertions, 84 deletions

diff --git a/include/linux/ide.h b/include/linux/ide.h
index 4726126f5a59..87c12ed96954 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -178,6 +178,7 @@ typedef struct hw_regs_s {
         ide_ack_intr_t  *ack_intr;              /* acknowledge interrupt */
         hwif_chipset_t  chipset;
         struct device   *dev, *parent;
+        unsigned long   config;
 } hw_regs_t;
 
 void ide_init_port_data(struct hwif_s *, unsigned int);
@@ -210,13 +211,16 @@ static inline int __ide_default_irq(unsigned long base)
         return 0;
 }
 
+#if defined(CONFIG_ARM) || defined(CONFIG_FRV) || defined(CONFIG_M68K) || \
+    defined(CONFIG_MIPS) || defined(CONFIG_MN10300) || defined(CONFIG_PARISC) \
+    || defined(CONFIG_PPC) || defined(CONFIG_SPARC) || defined(CONFIG_SPARC64)
 #include <asm/ide.h>
-
-#if !defined(MAX_HWIFS) || defined(CONFIG_EMBEDDED)
-#undef MAX_HWIFS
-#define MAX_HWIFS       CONFIG_IDE_MAX_HWIFS
+#else
+#include <asm-generic/ide_iops.h>
 #endif
 
+#define MAX_HWIFS       10
+
 /* Currently only m68k, apus and m8xx need it */
 #ifndef IDE_ARCH_ACK_INTR
 # define ide_ack_intr(hwif) (1)
@@ -307,7 +311,65 @@ struct ide_acpi_drive_link;
 struct ide_acpi_hwif_link;
 #endif
 
-typedef struct ide_drive_s {
+/* ATAPI device flags */
+enum {
+        IDE_AFLAG_DRQ_INTERRUPT         = (1 << 0),
+        IDE_AFLAG_MEDIA_CHANGED         = (1 << 1),
+
+        /* ide-cd */
+        /* Drive cannot lock the door. */
+        IDE_AFLAG_NO_DOORLOCK           = (1 << 2),
+        /* Drive cannot eject the disc. */
+        IDE_AFLAG_NO_EJECT              = (1 << 3),
+        /* Drive is a pre ATAPI 1.2 drive. */
+        IDE_AFLAG_PRE_ATAPI12           = (1 << 4),
+        /* TOC addresses are in BCD. */
+        IDE_AFLAG_TOCADDR_AS_BCD        = (1 << 5),
+        /* TOC track numbers are in BCD. */
+        IDE_AFLAG_TOCTRACKS_AS_BCD      = (1 << 6),
+        /*
+         * Drive does not provide data in multiples of SECTOR_SIZE
+         * when more than one interrupt is needed.
+         */
+        IDE_AFLAG_LIMIT_NFRAMES         = (1 << 7),
+        /* Seeking in progress. */
+        IDE_AFLAG_SEEKING               = (1 << 8),
+        /* Saved TOC information is current. */
+        IDE_AFLAG_TOC_VALID             = (1 << 9),
+        /* We think that the drive door is locked. */
+        IDE_AFLAG_DOOR_LOCKED           = (1 << 10),
+        /* SET_CD_SPEED command is unsupported. */
+        IDE_AFLAG_NO_SPEED_SELECT       = (1 << 11),
+        IDE_AFLAG_VERTOS_300_SSD        = (1 << 12),
+        IDE_AFLAG_VERTOS_600_ESD        = (1 << 13),
+        IDE_AFLAG_SANYO_3CD             = (1 << 14),
+        IDE_AFLAG_FULL_CAPS_PAGE        = (1 << 15),
+        IDE_AFLAG_PLAY_AUDIO_OK         = (1 << 16),
+        IDE_AFLAG_LE_SPEED_FIELDS       = (1 << 17),
+
+        /* ide-floppy */
+        /* Format in progress */
+        IDE_AFLAG_FORMAT_IN_PROGRESS    = (1 << 18),
+        /* Avoid commands not supported in Clik drive */
+        IDE_AFLAG_CLIK_DRIVE            = (1 << 19),
+        /* Requires BH algorithm for packets */
+        IDE_AFLAG_ZIP_DRIVE             = (1 << 20),
+
+        /* ide-tape */
+        IDE_AFLAG_IGNORE_DSC            = (1 << 21),
+        /* 0 When the tape position is unknown */
+        IDE_AFLAG_ADDRESS_VALID         = (1 << 22),
+        /* Device already opened */
+        IDE_AFLAG_BUSY                  = (1 << 23),
+        /* Attempt to auto-detect the current user block size */
+        IDE_AFLAG_DETECT_BS             = (1 << 24),
+        /* Currently on a filemark */
+        IDE_AFLAG_FILEMARK              = (1 << 25),
+        /* 0 = no tape is loaded, so we don't rewind after ejecting */
+        IDE_AFLAG_MEDIUM_PRESENT        = (1 << 26)
+};
+
+struct ide_drive_s {
         char            name[4];        /* drive name, such as "hda" */
         char            driver_req[10]; /* requests specific driver */
 
@@ -355,7 +417,6 @@ typedef struct ide_drive_s {
         unsigned nodma          : 1;    /* disallow DMA */
         unsigned remap_0_to_1   : 1;    /* 0=noremap, 1=remap 0->1 (for EZDrive) */
         unsigned blocked        : 1;    /* 1=powermanagment told us not to do anything, so sleep nicely */
-        unsigned vdma           : 1;    /* 1=doing PIO over DMA 0=doing normal DMA */
         unsigned scsi           : 1;    /* 0=default, 1=ide-scsi emulation */
         unsigned sleeping       : 1;    /* 1=sleeping & sleep field valid */
         unsigned post_reset     : 1;
@@ -400,7 +461,14 @@ typedef struct ide_drive_s {
         struct list_head list;
         struct device   gendev;
         struct completion gendev_rel_comp;      /* to deal with device release() */
-} ide_drive_t;
+
+        /* callback for packet commands */
+        void (*pc_callback)(struct ide_drive_s *);
+
+        unsigned long atapi_flags;
+};
+
+typedef struct ide_drive_s ide_drive_t;
 
 #define to_ide_device(dev)container_of(dev, ide_drive_t, gendev)
 
@@ -408,26 +476,55 @@ typedef struct ide_drive_s {
     ((1<<ide_pci)|(1<<ide_cmd646)|(1<<ide_ali14xx))
 #define IDE_CHIPSET_IS_PCI(c)   ((IDE_CHIPSET_PCI_MASK >> (c)) & 1)
 
+struct ide_task_s;
 struct ide_port_info;
 
+struct ide_tp_ops {
+        void    (*exec_command)(struct hwif_s *, u8);
+        u8      (*read_status)(struct hwif_s *);
+        u8      (*read_altstatus)(struct hwif_s *);
+        u8      (*read_sff_dma_status)(struct hwif_s *);
+
+        void    (*set_irq)(struct hwif_s *, int);
+
+        void    (*tf_load)(ide_drive_t *, struct ide_task_s *);
+        void    (*tf_read)(ide_drive_t *, struct ide_task_s *);
+
+        void    (*input_data)(ide_drive_t *, struct request *, void *,
+                              unsigned int);
+        void    (*output_data)(ide_drive_t *, struct request *, void *,
+                               unsigned int);
+};
+
+extern const struct ide_tp_ops default_tp_ops;
+
+/**
+ * struct ide_port_ops - IDE port operations
+ *
+ * @init_dev:           host specific initialization of a device
+ * @set_pio_mode:       routine to program host for PIO mode
+ * @set_dma_mode:       routine to program host for DMA mode
+ * @selectproc:         tweaks hardware to select drive
+ * @reset_poll:         chipset polling based on hba specifics
+ * @pre_reset:          chipset specific changes to default for device-hba resets
+ * @resetproc:          routine to reset controller after a disk reset
+ * @maskproc:           special host masking for drive selection
+ * @quirkproc:          check host's drive quirk list
+ *
+ * @mdma_filter:        filter MDMA modes
+ * @udma_filter:        filter UDMA modes
+ *
+ * @cable_detect:       detect cable type
+ */
 struct ide_port_ops {
-        /* host specific initialization of a device */
         void    (*init_dev)(ide_drive_t *);
-        /* routine to program host for PIO mode */
         void    (*set_pio_mode)(ide_drive_t *, const u8);
-        /* routine to program host for DMA mode */
         void    (*set_dma_mode)(ide_drive_t *, const u8);
-        /* tweaks hardware to select drive */
         void    (*selectproc)(ide_drive_t *);
-        /* chipset polling based on hba specifics */
         int     (*reset_poll)(ide_drive_t *);
-        /* chipset specific changes to default for device-hba resets */
         void    (*pre_reset)(ide_drive_t *);
-        /* routine to reset controller after a disk reset */
         void    (*resetproc)(ide_drive_t *);
-        /* special host masking for drive selection */
         void    (*maskproc)(ide_drive_t *, int);
-        /* check host's drive quirk list */
         void    (*quirkproc)(ide_drive_t *);
 
         u8      (*mdma_filter)(ide_drive_t *);
@@ -447,7 +544,7 @@ struct ide_dma_ops {
         void    (*dma_timeout)(struct ide_drive_s *);
 };
 
-struct ide_task_s;
+struct ide_host;
 
 typedef struct hwif_s {
         struct hwif_s *next;            /* for linked-list in ide_hwgroup_t */
@@ -455,6 +552,8 @@ typedef struct hwif_s {
         struct hwgroup_s *hwgroup;      /* actually (ide_hwgroup_t *) */
         struct proc_dir_entry *proc;    /* /proc/ide/ directory entry */
 
+        struct ide_host *host;
+
         char name[6];                   /* name of interface, eg. "ide0" */
 
         struct ide_io_ports     io_ports;
@@ -486,22 +585,12 @@ typedef struct hwif_s {
 
         void (*rw_disk)(ide_drive_t *, struct request *);
 
+        const struct ide_tp_ops         *tp_ops;
         const struct ide_port_ops       *port_ops;
         const struct ide_dma_ops        *dma_ops;
 
-        void (*tf_load)(ide_drive_t *, struct ide_task_s *);
-        void (*tf_read)(ide_drive_t *, struct ide_task_s *);
-
-        void (*input_data)(ide_drive_t *, struct request *, void *, unsigned);
-        void (*output_data)(ide_drive_t *, struct request *, void *, unsigned);
-
         void (*ide_dma_clear_irq)(ide_drive_t *drive);
 
-        void (*OUTB)(u8 addr, unsigned long port);
-        void (*OUTBSYNC)(struct hwif_s *hwif, u8 addr, unsigned long port);
-
-        u8  (*INB)(unsigned long port);
-
         /* dma physical region descriptor table (cpu view) */
         unsigned int    *dmatable_cpu;
         /* dma physical region descriptor table (dma view) */
@@ -524,8 +613,6 @@ typedef struct hwif_s {
         int             irq;            /* our irq number */
 
         unsigned long   dma_base;       /* base addr for dma ports */
-        unsigned long   dma_command;    /* dma command register */
-        unsigned long   dma_status;     /* dma status register */
 
         unsigned long   config_data;    /* for use by chipset-specific code */
         unsigned long   select_data;    /* for use by chipset-specific code */
@@ -552,6 +639,14 @@ typedef struct hwif_s {
 #endif
 } ____cacheline_internodealigned_in_smp ide_hwif_t;
 
+struct ide_host {
+        ide_hwif_t      *ports[MAX_HWIFS];
+        unsigned int    n_ports;
+        struct device   *dev[2];
+        unsigned long   host_flags;
+        void            *host_priv;
+};
+
 /*
  *  internal ide interrupt handler type
  */
@@ -611,8 +706,6 @@ enum {
         PC_FLAG_WRITING                 = (1 << 6),
         /* command timed out */
         PC_FLAG_TIMEDOUT                = (1 << 7),
-        PC_FLAG_ZIP_DRIVE               = (1 << 8),
-        PC_FLAG_DRQ_INTERRUPT           = (1 << 9),
 };
 
 struct ide_atapi_pc {
@@ -646,8 +739,6 @@ struct ide_atapi_pc {
          */
         u8 pc_buf[256];
 
-        void (*callback)(ide_drive_t *);
-
         /* idetape only */
         struct idetape_bh *bh;
         char *b_data;
@@ -802,18 +893,14 @@ struct ide_driver_s {
 
 #define to_ide_driver(drv) container_of(drv, ide_driver_t, gen_driver)
 
+int ide_device_get(ide_drive_t *);
+void ide_device_put(ide_drive_t *);
+
 int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *, unsigned, unsigned long);
 
 extern int ide_vlb_clk;
 extern int ide_pci_clk;
 
-ide_hwif_t *ide_find_port_slot(const struct ide_port_info *);
-
-static inline ide_hwif_t *ide_find_port(void)
-{
-        return ide_find_port_slot(NULL);
-}
-
 extern int ide_end_request (ide_drive_t *drive, int uptodate, int nrsecs);
 int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq,
                              int uptodate, int nr_sectors);
@@ -884,6 +971,7 @@ enum {
         IDE_TFLAG_IN_HOB                = IDE_TFLAG_IN_HOB_FEATURE |
                                           IDE_TFLAG_IN_HOB_NSECT |
                                           IDE_TFLAG_IN_HOB_LBA,
+        IDE_TFLAG_IN_FEATURE            = (1 << 1),
         IDE_TFLAG_IN_NSECT              = (1 << 25),
         IDE_TFLAG_IN_LBAL               = (1 << 26),
         IDE_TFLAG_IN_LBAM               = (1 << 27),
@@ -948,9 +1036,25 @@ typedef struct ide_task_s {
 
 void ide_tf_dump(const char *, struct ide_taskfile *);
 
+void ide_exec_command(ide_hwif_t *, u8);
+u8 ide_read_status(ide_hwif_t *);
+u8 ide_read_altstatus(ide_hwif_t *);
+u8 ide_read_sff_dma_status(ide_hwif_t *);
+
+void ide_set_irq(ide_hwif_t *, int);
+
+void ide_tf_load(ide_drive_t *, ide_task_t *);
+void ide_tf_read(ide_drive_t *, ide_task_t *);
+
+void ide_input_data(ide_drive_t *, struct request *, void *, unsigned int);
+void ide_output_data(ide_drive_t *, struct request *, void *, unsigned int);
+
 extern void SELECT_DRIVE(ide_drive_t *);
 void SELECT_MASK(ide_drive_t *, int);
 
+u8 ide_read_error(ide_drive_t *);
+void ide_read_bcount_and_ireason(ide_drive_t *, u16 *, u8 *);
+
 extern int drive_is_ready(ide_drive_t *);
 
 void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8);
@@ -1000,12 +1104,15 @@ extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *o
 #define ide_pci_register_driver(d) pci_register_driver(d)
 #endif
 
-void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int, u8 *);
+void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int,
+                         hw_regs_t *, hw_regs_t **);
 void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *);
 
 #ifdef CONFIG_BLK_DEV_IDEDMA_PCI
 int ide_pci_set_master(struct pci_dev *, const char *);
 unsigned long ide_pci_dma_base(ide_hwif_t *, const struct ide_port_info *);
+extern const struct ide_dma_ops sff_dma_ops;
+int ide_pci_check_simplex(ide_hwif_t *, const struct ide_port_info *);
 int ide_hwif_setup_dma(ide_hwif_t *, const struct ide_port_info *);
 #else
 static inline int ide_hwif_setup_dma(ide_hwif_t *hwif,
@@ -1015,10 +1122,6 @@ static inline int ide_hwif_setup_dma(ide_hwif_t *hwif,
 }
 #endif
 
-extern void default_hwif_iops(ide_hwif_t *);
-extern void default_hwif_mmiops(ide_hwif_t *);
-extern void default_hwif_transport(ide_hwif_t *);
-
 typedef struct ide_pci_enablebit_s {
         u8      reg;    /* byte pci reg holding the enable-bit */
         u8      mask;   /* mask to isolate the enable-bit */
@@ -1081,7 +1184,6 @@ enum {
         IDE_HFLAG_IO_32BIT              = (1 << 24),
         /* unmask IRQs */
         IDE_HFLAG_UNMASK_IRQS           = (1 << 25),
-        IDE_HFLAG_ABUSE_SET_DMA_MODE    = (1 << 26),
         /* serialize ports if DMA is possible (for sl82c105) */
         IDE_HFLAG_SERIALIZE_DMA         = (1 << 27),
         /* force host out of "simplex" mode */
@@ -1092,8 +1194,6 @@ enum {
         IDE_HFLAG_NO_IO_32BIT           = (1 << 30),
         /* never unmask IRQs */
         IDE_HFLAG_NO_UNMASK_IRQS        = (1 << 31),
-        /* host uses VDMA (disabled for now) */
-        IDE_HFLAG_VDMA                  = 0,
 };
 
 #ifdef CONFIG_BLK_DEV_OFFBOARD
@@ -1104,12 +1204,13 @@ enum {
 
 struct ide_port_info {
         char                    *name;
-        unsigned int            (*init_chipset)(struct pci_dev *, const char *);
+        unsigned int            (*init_chipset)(struct pci_dev *);
         void                    (*init_iops)(ide_hwif_t *);
         void                    (*init_hwif)(ide_hwif_t *);
         int                     (*init_dma)(ide_hwif_t *,
                                             const struct ide_port_info *);
 
+        const struct ide_tp_ops         *tp_ops;
         const struct ide_port_ops       *port_ops;
         const struct ide_dma_ops        *dma_ops;
 
@@ -1122,8 +1223,10 @@ struct ide_port_info {
         u8                      udma_mask;
 };
 
-int ide_setup_pci_device(struct pci_dev *, const struct ide_port_info *);
-int ide_setup_pci_devices(struct pci_dev *, struct pci_dev *, const struct ide_port_info *);
+int ide_pci_init_one(struct pci_dev *, const struct ide_port_info *, void *);
+int ide_pci_init_two(struct pci_dev *, struct pci_dev *,
+                     const struct ide_port_info *, void *);
+void ide_pci_remove(struct pci_dev *);
 
 void ide_map_sg(ide_drive_t *, struct request *);
 void ide_init_sg_cmd(ide_drive_t *, struct request *);
@@ -1163,7 +1266,6 @@ void ide_destroy_dmatable(ide_drive_t *);
 extern int ide_build_dmatable(ide_drive_t *, struct request *);
 int ide_allocate_dma_engine(ide_hwif_t *);
 void ide_release_dma_engine(ide_hwif_t *);
-void ide_setup_dma(ide_hwif_t *, unsigned long);
 
 void ide_dma_host_set(ide_drive_t *, int);
 extern int ide_dma_setup(ide_drive_t *);
@@ -1217,8 +1319,14 @@ void ide_undecoded_slave(ide_drive_t *);
 
 void ide_port_apply_params(ide_hwif_t *);
 
-int ide_device_add_all(u8 *idx, const struct ide_port_info *);
-int ide_device_add(u8 idx[4], const struct ide_port_info *);
+struct ide_host *ide_host_alloc_all(const struct ide_port_info *, hw_regs_t **);
+struct ide_host *ide_host_alloc(const struct ide_port_info *, hw_regs_t **);
+void ide_host_free(struct ide_host *);
+int ide_host_register(struct ide_host *, const struct ide_port_info *,
+                      hw_regs_t **);
+int ide_host_add(const struct ide_port_info *, hw_regs_t **,
+                 struct ide_host **);
+void ide_host_remove(struct ide_host *);
 int ide_legacy_device_add(const struct ide_port_info *, unsigned long);
 void ide_port_unregister_devices(ide_hwif_t *);
 void ide_port_scan(ide_hwif_t *);
@@ -1350,33 +1458,4 @@ static inline ide_drive_t *ide_get_paired_drive(ide_drive_t *drive)
 
         return &hwif->drives[(drive->dn ^ 1) & 1];
 }
-
-static inline void ide_set_irq(ide_drive_t *drive, int on)
-{
-        ide_hwif_t *hwif = drive->hwif;
-
-        hwif->OUTBSYNC(hwif, ATA_DEVCTL_OBS | (on ? 0 : 2),
-                       hwif->io_ports.ctl_addr);
-}
-
-static inline u8 ide_read_status(ide_drive_t *drive)
-{
-        ide_hwif_t *hwif = drive->hwif;
-
-        return hwif->INB(hwif->io_ports.status_addr);
-}
-
-static inline u8 ide_read_altstatus(ide_drive_t *drive)
-{
-        ide_hwif_t *hwif = drive->hwif;
-
-        return hwif->INB(hwif->io_ports.ctl_addr);
-}
-
-static inline u8 ide_read_error(ide_drive_t *drive)
-{
-        ide_hwif_t *hwif = drive->hwif;
-
-        return hwif->INB(hwif->io_ports.error_addr);
-}
 #endif /* _IDE_H */