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-rw-r--r--drivers/scsi/sata_nv.c211
1 files changed, 194 insertions, 17 deletions
diff --git a/drivers/scsi/sata_nv.c b/drivers/scsi/sata_nv.c
index 1cb7b44..94cb179 100644
--- a/drivers/scsi/sata_nv.c
+++ b/drivers/scsi/sata_nv.c
@@ -78,8 +78,13 @@ enum {
};
static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
-static irqreturn_t nv_interrupt (int irq, void *dev_instance,
- struct pt_regs *regs);
+static void nv_ck804_host_stop(struct ata_host_set *host_set);
+static irqreturn_t nv_generic_interrupt(int irq, void *dev_instance,
+ struct pt_regs *regs);
+static irqreturn_t nv_nf2_interrupt(int irq, void *dev_instance,
+ struct pt_regs *regs);
+static irqreturn_t nv_ck804_interrupt(int irq, void *dev_instance,
+ struct pt_regs *regs);
static u32 nv_scr_read (struct ata_port *ap, unsigned int sc_reg);
static void nv_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
@@ -154,7 +159,7 @@ static struct scsi_host_template nv_sht = {
.bios_param = ata_std_bios_param,
};
-static const struct ata_port_operations nv_ops = {
+static const struct ata_port_operations nv_generic_ops = {
.port_disable = ata_port_disable,
.tf_load = ata_tf_load,
.tf_read = ata_tf_read,
@@ -170,7 +175,7 @@ static const struct ata_port_operations nv_ops = {
.qc_issue = ata_qc_issue_prot,
.eng_timeout = ata_eng_timeout,
.data_xfer = ata_pio_data_xfer,
- .irq_handler = nv_interrupt,
+ .irq_handler = nv_generic_interrupt,
.irq_clear = ata_bmdma_irq_clear,
.scr_read = nv_scr_read,
.scr_write = nv_scr_write,
@@ -179,6 +184,56 @@ static const struct ata_port_operations nv_ops = {
.host_stop = ata_pci_host_stop,
};
+static const struct ata_port_operations nv_nf2_ops = {
+ .port_disable = ata_port_disable,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .exec_command = ata_exec_command,
+ .check_status = ata_check_status,
+ .dev_select = ata_std_dev_select,
+ .phy_reset = sata_phy_reset,
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+ .irq_handler = nv_nf2_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+ .scr_read = nv_scr_read,
+ .scr_write = nv_scr_write,
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_pci_host_stop,
+};
+
+static const struct ata_port_operations nv_ck804_ops = {
+ .port_disable = ata_port_disable,
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .exec_command = ata_exec_command,
+ .check_status = ata_check_status,
+ .dev_select = ata_std_dev_select,
+ .phy_reset = sata_phy_reset,
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .eng_timeout = ata_eng_timeout,
+ .data_xfer = ata_pio_data_xfer,
+ .irq_handler = nv_ck804_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+ .scr_read = nv_scr_read,
+ .scr_write = nv_scr_write,
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = nv_ck804_host_stop,
+};
+
/* FIXME: The hardware provides the necessary SATA PHY controls
* to support ATA_FLAG_SATA_RESET. However, it is currently
* necessary to disable that flag, to solve misdetection problems.
@@ -187,16 +242,43 @@ static const struct ata_port_operations nv_ops = {
* This problem really needs to be investigated further. But in the
* meantime, we avoid ATA_FLAG_SATA_RESET to get people working.
*/
-static struct ata_port_info nv_port_info = {
- .sht = &nv_sht,
- .host_flags = ATA_FLAG_SATA |
- /* ATA_FLAG_SATA_RESET | */
- ATA_FLAG_SRST |
- ATA_FLAG_NO_LEGACY,
- .pio_mask = NV_PIO_MASK,
- .mwdma_mask = NV_MWDMA_MASK,
- .udma_mask = NV_UDMA_MASK,
- .port_ops = &nv_ops,
+static struct ata_port_info nv_port_info[] = {
+ /* generic */
+ {
+ .sht = &nv_sht,
+ .host_flags = ATA_FLAG_SATA |
+ /* ATA_FLAG_SATA_RESET | */
+ ATA_FLAG_SRST |
+ ATA_FLAG_NO_LEGACY,
+ .pio_mask = NV_PIO_MASK,
+ .mwdma_mask = NV_MWDMA_MASK,
+ .udma_mask = NV_UDMA_MASK,
+ .port_ops = &nv_generic_ops,
+ },
+ /* nforce2/3 */
+ {
+ .sht = &nv_sht,
+ .host_flags = ATA_FLAG_SATA |
+ /* ATA_FLAG_SATA_RESET | */
+ ATA_FLAG_SRST |
+ ATA_FLAG_NO_LEGACY,
+ .pio_mask = NV_PIO_MASK,
+ .mwdma_mask = NV_MWDMA_MASK,
+ .udma_mask = NV_UDMA_MASK,
+ .port_ops = &nv_nf2_ops,
+ },
+ /* ck804 */
+ {
+ .sht = &nv_sht,
+ .host_flags = ATA_FLAG_SATA |
+ /* ATA_FLAG_SATA_RESET | */
+ ATA_FLAG_SRST |
+ ATA_FLAG_NO_LEGACY,
+ .pio_mask = NV_PIO_MASK,
+ .mwdma_mask = NV_MWDMA_MASK,
+ .udma_mask = NV_UDMA_MASK,
+ .port_ops = &nv_ck804_ops,
+ },
};
MODULE_AUTHOR("NVIDIA");
@@ -205,8 +287,8 @@ MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(pci, nv_pci_tbl);
MODULE_VERSION(DRV_VERSION);
-static irqreturn_t nv_interrupt (int irq, void *dev_instance,
- struct pt_regs *regs)
+static irqreturn_t nv_generic_interrupt(int irq, void *dev_instance,
+ struct pt_regs *regs)
{
struct ata_host_set *host_set = dev_instance;
unsigned int i;
@@ -239,6 +321,79 @@ static irqreturn_t nv_interrupt (int irq, void *dev_instance,
return IRQ_RETVAL(handled);
}
+static int nv_host_intr(struct ata_port *ap, u8 irq_stat)
+{
+ struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->active_tag);
+ int handled;
+
+ /* bail out if not our interrupt */
+ if (!(irq_stat & NV_INT_DEV))
+ return 0;
+
+ /* DEV interrupt w/ no active qc? */
+ if (unlikely(!qc || (qc->tf.flags & ATA_TFLAG_POLLING))) {
+ ata_check_status(ap);
+ return 1;
+ }
+
+ /* handle interrupt */
+ handled = ata_host_intr(ap, qc);
+ if (unlikely(!handled)) {
+ /* spurious, clear it */
+ ata_check_status(ap);
+ }
+
+ return 1;
+}
+
+static irqreturn_t nv_do_interrupt(struct ata_host_set *host_set, u8 irq_stat)
+{
+ int i, handled = 0;
+
+ for (i = 0; i < host_set->n_ports; i++) {
+ struct ata_port *ap = host_set->ports[i];
+
+ if (ap && !(ap->flags & ATA_FLAG_DISABLED))
+ handled += nv_host_intr(ap, irq_stat);
+
+ irq_stat >>= NV_INT_PORT_SHIFT;
+ }
+
+ return IRQ_RETVAL(handled);
+}
+
+static irqreturn_t nv_nf2_interrupt(int irq, void *dev_instance,
+ struct pt_regs *regs)
+{
+ struct ata_host_set *host_set = dev_instance;
+ unsigned long flags;
+ u8 irq_stat;
+ irqreturn_t ret;
+
+ spin_lock_irqsave(&host_set->lock, flags);
+ irq_stat = inb(host_set->ports[0]->ioaddr.scr_addr + NV_INT_STATUS);
+ ret = nv_do_interrupt(host_set, irq_stat);
+ spin_unlock_irqrestore(&host_set->lock, flags);
+
+ return ret;
+}
+
+static irqreturn_t nv_ck804_interrupt(int irq, void *dev_instance,
+ struct pt_regs *regs)
+{
+ struct ata_host_set *host_set = dev_instance;
+ unsigned long flags;
+ u8 irq_stat;
+ irqreturn_t ret;
+
+ spin_lock_irqsave(&host_set->lock, flags);
+ irq_stat = readb(host_set->mmio_base + NV_INT_STATUS_CK804);
+ ret = nv_do_interrupt(host_set, irq_stat);
+ spin_unlock_irqrestore(&host_set->lock, flags);
+
+ return ret;
+}
+
static u32 nv_scr_read (struct ata_port *ap, unsigned int sc_reg)
{
if (sc_reg > SCR_CONTROL)
@@ -294,7 +449,7 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
rc = -ENOMEM;
- ppi = &nv_port_info;
+ ppi = &nv_port_info[ent->driver_data];
probe_ent = ata_pci_init_native_mode(pdev, &ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY);
if (!probe_ent)
goto err_out_regions;
@@ -310,6 +465,15 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
probe_ent->port[0].scr_addr = base + NV_PORT0_SCR_REG_OFFSET;
probe_ent->port[1].scr_addr = base + NV_PORT1_SCR_REG_OFFSET;
+ /* enable SATA space for CK804 */
+ if (ent->driver_data == CK804) {
+ u8 regval;
+
+ pci_read_config_byte(pdev, NV_MCP_SATA_CFG_20, &regval);
+ regval |= NV_MCP_SATA_CFG_20_SATA_SPACE_EN;
+ pci_write_config_byte(pdev, NV_MCP_SATA_CFG_20, regval);
+ }
+
pci_set_master(pdev);
rc = ata_device_add(probe_ent);
@@ -333,6 +497,19 @@ err_out:
return rc;
}
+static void nv_ck804_host_stop(struct ata_host_set *host_set)
+{
+ struct pci_dev *pdev = to_pci_dev(host_set->dev);
+ u8 regval;
+
+ /* disable SATA space for CK804 */
+ pci_read_config_byte(pdev, NV_MCP_SATA_CFG_20, &regval);
+ regval &= ~NV_MCP_SATA_CFG_20_SATA_SPACE_EN;
+ pci_write_config_byte(pdev, NV_MCP_SATA_CFG_20, regval);
+
+ ata_pci_host_stop(host_set);
+}
+
static int __init nv_init(void)
{
return pci_module_init(&nv_pci_driver);
generated by cgit v0.10.2 at 2024-11-08 04:05:14 (GMT)