icside: use ec->dma directly

[mirror_ubuntu-bionic-kernel.git] / drivers / ide / ide.c

diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 4834cca5cb31941ab5889740d86610af1e17f044..4a668d51965da507adc1783cc72048c7bf5f7019 100644 (file)
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -100,8 +100,6 @@ static int ide_scan_direction; /* THIS was formerly 2.2.x pci=reverse */
 
 int noautodma = 0;
 
-EXPORT_SYMBOL(noautodma);
-
 #ifdef CONFIG_BLK_DEV_IDEACPI
 int ide_noacpi = 0;
 int ide_noacpitfs = 1;
@@ -136,8 +134,6 @@ static void init_hwif_data(ide_hwif_t *hwif, unsigned int index)
 
        hwif->bus_state = BUSSTATE_ON;
 
-       hwif->atapi_dma = 0;            /* disable all atapi dma */ 
-
        init_completion(&hwif->gendev_rel_comp);
 
        default_hwif_iops(hwif);
@@ -269,6 +265,30 @@ static int ide_system_bus_speed(void)
        return system_bus_speed;
 }
 
+ide_hwif_t * ide_find_port(unsigned long base)
+{
+       ide_hwif_t *hwif;
+       int i;
+
+       for (i = 0; i < MAX_HWIFS; i++) {
+               hwif = &ide_hwifs[i];
+               if (hwif->io_ports[IDE_DATA_OFFSET] == base)
+                       goto found;
+       }
+
+       for (i = 0; i < MAX_HWIFS; i++) {
+               hwif = &ide_hwifs[i];
+               if (hwif->io_ports[IDE_DATA_OFFSET] == 0)
+                       goto found;
+       }
+
+       hwif = NULL;
+found:
+       return hwif;
+}
+
+EXPORT_SYMBOL_GPL(ide_find_port);
+
 static struct resource* hwif_request_region(ide_hwif_t *hwif,
                                            unsigned long addr, int num)
 {
@@ -381,7 +401,6 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
 
        hwif->pio_mask                  = tmp_hwif->pio_mask;
 
-       hwif->atapi_dma                 = tmp_hwif->atapi_dma;
        hwif->ultra_mask                = tmp_hwif->ultra_mask;
        hwif->mwdma_mask                = tmp_hwif->mwdma_mask;
        hwif->swdma_mask                = tmp_hwif->swdma_mask;
@@ -396,6 +415,8 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
        hwif->cds                       = tmp_hwif->cds;
 #endif
 
+       hwif->fixup                     = tmp_hwif->fixup;
+
        hwif->set_pio_mode              = tmp_hwif->set_pio_mode;
        hwif->set_dma_mode              = tmp_hwif->set_dma_mode;
        hwif->mdma_filter               = tmp_hwif->mdma_filter;
@@ -442,7 +463,6 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
 
        hwif->mmio                      = tmp_hwif->mmio;
        hwif->rqsize                    = tmp_hwif->rqsize;
-       hwif->no_lba48                  = tmp_hwif->no_lba48;
 
 #ifndef CONFIG_BLK_DEV_IDECS
        hwif->irq                       = tmp_hwif->irq;
@@ -460,7 +480,6 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
        hwif->select_data               = tmp_hwif->select_data;
        hwif->extra_base                = tmp_hwif->extra_base;
        hwif->extra_ports               = tmp_hwif->extra_ports;
-       hwif->autodma                   = tmp_hwif->autodma;
 
        hwif->hwif_data                 = tmp_hwif->hwif_data;
 }
@@ -659,7 +678,6 @@ void ide_setup_ports (      hw_regs_t *hw,
                }
        }
        hw->irq = irq;
-       hw->dma = NO_DMA;
        hw->ack_intr = ack_intr;
 /*
  *     hw->iops = iops;
@@ -667,11 +685,11 @@ void ide_setup_ports (    hw_regs_t *hw,
 }
 
 /**
- *     ide_register_hw_with_fixup      -       register IDE interface
+ *     ide_register_hw         -       register IDE interface
  *     @hw: hardware registers
+ *     @fixup: fixup function
  *     @initializing: set while initializing built-in drivers
  *     @hwifp: pointer to returned hwif
- *     @fixup: fixup function
  *
  *     Register an IDE interface, specifying exactly the registers etc.
  *     Set init=1 iff calling before probes have taken place.
@@ -679,9 +697,8 @@ void ide_setup_ports (      hw_regs_t *hw,
  *     Returns -1 on error.
  */
 
-int ide_register_hw_with_fixup(hw_regs_t *hw, int initializing,
-                              ide_hwif_t **hwifp,
-                              void(*fixup)(ide_hwif_t *hwif))
+int ide_register_hw(hw_regs_t *hw, void (*fixup)(ide_hwif_t *),
+                   int initializing, ide_hwif_t **hwifp)
 {
        int index, retry = 1;
        ide_hwif_t *hwif;
@@ -689,7 +706,7 @@ int ide_register_hw_with_fixup(hw_regs_t *hw, int initializing,
        do {
                for (index = 0; index < MAX_HWIFS; ++index) {
                        hwif = &ide_hwifs[index];
-                       if (hwif->hw.io_ports[IDE_DATA_OFFSET] == hw->io_ports[IDE_DATA_OFFSET])
+                       if (hwif->io_ports[IDE_DATA_OFFSET] == hw->io_ports[IDE_DATA_OFFSET])
                                goto found;
                }
                for (index = 0; index < MAX_HWIFS; ++index) {
@@ -697,7 +714,7 @@ int ide_register_hw_with_fixup(hw_regs_t *hw, int initializing,
                        if (hwif->hold)
                                continue;
                        if ((!hwif->present && !hwif->mate && !initializing) ||
-                           (!hwif->hw.io_ports[IDE_DATA_OFFSET] && initializing))
+                           (!hwif->io_ports[IDE_DATA_OFFSET] && initializing))
                                goto found;
                }
                for (index = 0; index < MAX_HWIFS; index++)
@@ -717,12 +734,14 @@ found:
        memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->hw.io_ports));
        hwif->irq = hw->irq;
        hwif->noprobe = 0;
+       hwif->fixup = fixup;
        hwif->chipset = hw->chipset;
        hwif->gendev.parent = hw->dev;
 
-       if (!initializing) {
-               probe_hwif_init_with_fixup(hwif, fixup);
-               ide_proc_register_port(hwif);
+       if (initializing == 0) {
+               u8 idx[4] = { index, 0xff, 0xff, 0xff };
+
+               ide_device_add(idx);
        }
 
        if (hwifp)
@@ -731,13 +750,6 @@ found:
        return (initializing || hwif->present) ? index : -1;
 }
 
-EXPORT_SYMBOL(ide_register_hw_with_fixup);
-
-int ide_register_hw(hw_regs_t *hw, int initializing, ide_hwif_t **hwifp)
-{
-       return ide_register_hw_with_fixup(hw, initializing, hwifp, NULL);
-}
-
 EXPORT_SYMBOL(ide_register_hw);
 
 /*
@@ -1053,7 +1065,7 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
                        ide_init_hwif_ports(&hw, (unsigned long) args[0],
                                            (unsigned long) args[1], NULL);
                        hw.irq = args[2];
-                       if (ide_register_hw(&hw, 0, NULL) == -1)
+                       if (ide_register_hw(&hw, NULL, 0, NULL) == -1)
                                return -EIO;
                        return 0;
                }
@@ -1275,7 +1287,7 @@ static int __init ide_setup(char *s)
        if (!strcmp(s, "ide=nodma")) {
                printk(" : Prevented DMA\n");
                noautodma = 1;
-               return 1;
+               goto obsolete_option;
        }
 
 #ifdef CONFIG_IDEPCI_PCIBUS_ORDER
@@ -1309,7 +1321,7 @@ static int __init ide_setup(char *s)
         */
        if (s[0] == 'h' && s[1] == 'd' && s[2] >= 'a' && s[2] <= max_drive) {
                const char *hd_words[] = {
-                       "none", "noprobe", "nowerr", "cdrom", "minus5",
+                       "none", "noprobe", "nowerr", "cdrom", "nodma",
                        "autotune", "noautotune", "minus8", "swapdata", "bswap",
                        "noflush", "remap", "remap63", "scsi", NULL };
                unit = s[2] - 'a';
@@ -1337,6 +1349,9 @@ static int __init ide_setup(char *s)
                                drive->ready_stat = 0;
                                hwif->noprobe = 0;
                                goto done;
+                       case -5: /* nodma */
+                               drive->nodma = 1;
+                               goto done;
                        case -6: /* "autotune" */
                                drive->autotune = IDE_TUNE_AUTO;
                                goto obsolete_option;
@@ -1398,7 +1413,7 @@ static int __init ide_setup(char *s)
                 */
                static const char *ide_words[] = {
                        "noprobe", "serialize", "minus3", "minus4",
-                       "reset", "dma", "ata66", "minus8", "minus9",
+                       "reset", "minus6", "ata66", "minus8", "minus9",
                        "minus10", "four", "qd65xx", "ht6560b", "cmd640_vlb",
                        "dtc2278", "umc8672", "ali14xx", NULL };
                hw = s[3] - '0';
@@ -1477,6 +1492,7 @@ static int __init ide_setup(char *s)
                        case -10: /* minus10 */
                        case -9: /* minus9 */
                        case -8: /* minus8 */
+                       case -6:
                        case -4:
                        case -3:
                                goto bad_option;
@@ -1491,9 +1507,6 @@ static int __init ide_setup(char *s)
 #else
                                goto bad_hwif;
 #endif
-                       case -6: /* dma */
-                               hwif->autodma = 1;
-                               goto obsolete_option;
                        case -5: /* "reset" */
                                hwif->reset = 1;
                                goto obsolete_option;