mirror of https://gitee.com/openkylin/linux.git
[libata sata_promise] add correct read/write of hotplug registers for SATAII devices
This patch adds support for correctly masking out and knowing about hotplug events on Promise SATAII150 Tx4/Tx2 Plus controllers. Also, a kmalloc->kzalloc cleanup. Signed-off-by: Luke Kosewski <lkosewsk@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Luke Kosewski
Jeff Garzik
parent
b376bc1f6b
commit
6340f01969
|
|
@ -46,7 +46,7 @@
|
|||
#include "sata_promise.h"
|
||||
|
||||
#define DRV_NAME "sata_promise"
|
||||
#define DRV_VERSION "1.03"
|
||||
#define DRV_VERSION "1.04"
|
||||
|
||||
|
||||
enum {
|
||||
|
|
@ -58,6 +58,7 @@ enum {
|
|||
PDC_GLOBAL_CTL = 0x48, /* Global control/status (per port) */
|
||||
PDC_CTLSTAT = 0x60, /* IDE control and status (per port) */
|
||||
PDC_SATA_PLUG_CSR = 0x6C, /* SATA Plug control/status reg */
|
||||
PDC2_SATA_PLUG_CSR = 0x60, /* SATAII Plug control/status reg */
|
||||
PDC_SLEW_CTL = 0x470, /* slew rate control reg */
|
||||
|
||||
PDC_ERR_MASK = (1<<19) | (1<<20) | (1<<21) | (1<<22) |
|
||||
|
|
@ -67,8 +68,10 @@ enum {
|
|||
board_20319 = 1, /* FastTrak S150 TX4 */
|
||||
board_20619 = 2, /* FastTrak TX4000 */
|
||||
board_20771 = 3, /* FastTrak TX2300 */
|
||||
board_2057x = 4, /* SATAII150 Tx2plus */
|
||||
board_40518 = 5, /* SATAII150 Tx4 */
|
||||
|
||||
PDC_HAS_PATA = (1 << 1), /* PDC20375 has PATA */
|
||||
PDC_HAS_PATA = (1 << 1), /* PDC20375/20575 has PATA */
|
||||
|
||||
PDC_RESET = (1 << 11), /* HDMA reset */
|
||||
|
||||
|
|
@ -82,6 +85,10 @@ struct pdc_port_priv {
|
|||
dma_addr_t pkt_dma;
|
||||
};
|
||||
|
||||
struct pdc_host_priv {
|
||||
int hotplug_offset;
|
||||
};
|
||||
|
||||
static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg);
|
||||
static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
|
||||
static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
|
||||
|
|
@ -96,6 +103,7 @@ static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf)
|
|||
static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
|
||||
static void pdc_irq_clear(struct ata_port *ap);
|
||||
static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc);
|
||||
static void pdc_host_stop(struct ata_host_set *host_set);
|
||||
|
||||
|
||||
static struct scsi_host_template pdc_ata_sht = {
|
||||
|
|
@ -137,7 +145,7 @@ static const struct ata_port_operations pdc_sata_ops = {
|
|||
.scr_write = pdc_sata_scr_write,
|
||||
.port_start = pdc_port_start,
|
||||
.port_stop = pdc_port_stop,
|
||||
.host_stop = ata_pci_host_stop,
|
||||
.host_stop = pdc_host_stop,
|
||||
};
|
||||
|
||||
static const struct ata_port_operations pdc_pata_ops = {
|
||||
|
|
@ -158,7 +166,7 @@ static const struct ata_port_operations pdc_pata_ops = {
|
|||
|
||||
.port_start = pdc_port_start,
|
||||
.port_stop = pdc_port_stop,
|
||||
.host_stop = ata_pci_host_stop,
|
||||
.host_stop = pdc_host_stop,
|
||||
};
|
||||
|
||||
static const struct ata_port_info pdc_port_info[] = {
|
||||
|
|
@ -201,6 +209,26 @@ static const struct ata_port_info pdc_port_info[] = {
|
|||
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
|
||||
.port_ops = &pdc_sata_ops,
|
||||
},
|
||||
|
||||
/* board_2057x */
|
||||
{
|
||||
.sht = &pdc_ata_sht,
|
||||
.host_flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA,
|
||||
.pio_mask = 0x1f, /* pio0-4 */
|
||||
.mwdma_mask = 0x07, /* mwdma0-2 */
|
||||
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
|
||||
.port_ops = &pdc_sata_ops,
|
||||
},
|
||||
|
||||
/* board_40518 */
|
||||
{
|
||||
.sht = &pdc_ata_sht,
|
||||
.host_flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA,
|
||||
.pio_mask = 0x1f, /* pio0-4 */
|
||||
.mwdma_mask = 0x07, /* mwdma0-2 */
|
||||
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
|
||||
.port_ops = &pdc_sata_ops,
|
||||
},
|
||||
};
|
||||
|
||||
static const struct pci_device_id pdc_ata_pci_tbl[] = {
|
||||
|
|
@ -217,9 +245,9 @@ static const struct pci_device_id pdc_ata_pci_tbl[] = {
|
|||
{ PCI_VENDOR_ID_PROMISE, 0x3376, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
|
||||
board_2037x },
|
||||
{ PCI_VENDOR_ID_PROMISE, 0x3574, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
|
||||
board_2037x },
|
||||
board_2057x },
|
||||
{ PCI_VENDOR_ID_PROMISE, 0x3d75, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
|
||||
board_2037x },
|
||||
board_2057x },
|
||||
{ PCI_VENDOR_ID_PROMISE, 0x3d73, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
|
||||
board_2037x },
|
||||
|
||||
|
|
@ -232,7 +260,7 @@ static const struct pci_device_id pdc_ata_pci_tbl[] = {
|
|||
{ PCI_VENDOR_ID_PROMISE, 0x3d17, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
|
||||
board_20319 },
|
||||
{ PCI_VENDOR_ID_PROMISE, 0x3d18, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
|
||||
board_20319 },
|
||||
board_40518 },
|
||||
|
||||
{ PCI_VENDOR_ID_PROMISE, 0x6629, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
|
||||
board_20619 },
|
||||
|
|
@ -261,12 +289,11 @@ static int pdc_port_start(struct ata_port *ap)
|
|||
if (rc)
|
||||
return rc;
|
||||
|
||||
pp = kmalloc(sizeof(*pp), GFP_KERNEL);
|
||||
pp = kzalloc(sizeof(*pp), GFP_KERNEL);
|
||||
if (!pp) {
|
||||
rc = -ENOMEM;
|
||||
goto err_out;
|
||||
}
|
||||
memset(pp, 0, sizeof(*pp));
|
||||
|
||||
pp->pkt = dma_alloc_coherent(dev, 128, &pp->pkt_dma, GFP_KERNEL);
|
||||
if (!pp->pkt) {
|
||||
|
|
@ -298,6 +325,16 @@ static void pdc_port_stop(struct ata_port *ap)
|
|||
}
|
||||
|
||||
|
||||
static void pdc_host_stop(struct ata_host_set *host_set)
|
||||
{
|
||||
struct pdc_host_priv *hp = host_set->private_data;
|
||||
|
||||
ata_pci_host_stop(host_set);
|
||||
|
||||
kfree(hp);
|
||||
}
|
||||
|
||||
|
||||
static void pdc_reset_port(struct ata_port *ap)
|
||||
{
|
||||
void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_CTLSTAT;
|
||||
|
|
@ -487,14 +524,15 @@ static irqreturn_t pdc_interrupt (int irq, void *dev_instance, struct pt_regs *r
|
|||
VPRINTK("QUICK EXIT 2\n");
|
||||
return IRQ_NONE;
|
||||
}
|
||||
|
||||
spin_lock(&host_set->lock);
|
||||
|
||||
mask &= 0xffff; /* only 16 tags possible */
|
||||
if (!mask) {
|
||||
VPRINTK("QUICK EXIT 3\n");
|
||||
return IRQ_NONE;
|
||||
goto done_irq;
|
||||
}
|
||||
|
||||
spin_lock(&host_set->lock);
|
||||
|
||||
writel(mask, mmio_base + PDC_INT_SEQMASK);
|
||||
|
||||
for (i = 0; i < host_set->n_ports; i++) {
|
||||
|
|
@ -511,10 +549,10 @@ static irqreturn_t pdc_interrupt (int irq, void *dev_instance, struct pt_regs *r
|
|||
}
|
||||
}
|
||||
|
||||
spin_unlock(&host_set->lock);
|
||||
|
||||
VPRINTK("EXIT\n");
|
||||
|
||||
done_irq:
|
||||
spin_unlock(&host_set->lock);
|
||||
return IRQ_RETVAL(handled);
|
||||
}
|
||||
|
||||
|
|
@ -592,6 +630,8 @@ static void pdc_ata_setup_port(struct ata_ioports *port, unsigned long base)
|
|||
static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe)
|
||||
{
|
||||
void __iomem *mmio = pe->mmio_base;
|
||||
struct pdc_host_priv *hp = pe->private_data;
|
||||
int hotplug_offset = hp->hotplug_offset;
|
||||
u32 tmp;
|
||||
|
||||
/*
|
||||
|
|
@ -606,12 +646,12 @@ static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe)
|
|||
writel(tmp, mmio + PDC_FLASH_CTL);
|
||||
|
||||
/* clear plug/unplug flags for all ports */
|
||||
tmp = readl(mmio + PDC_SATA_PLUG_CSR);
|
||||
writel(tmp | 0xff, mmio + PDC_SATA_PLUG_CSR);
|
||||
tmp = readl(mmio + hotplug_offset);
|
||||
writel(tmp | 0xff, mmio + hotplug_offset);
|
||||
|
||||
/* mask plug/unplug ints */
|
||||
tmp = readl(mmio + PDC_SATA_PLUG_CSR);
|
||||
writel(tmp | 0xff0000, mmio + PDC_SATA_PLUG_CSR);
|
||||
tmp = readl(mmio + hotplug_offset);
|
||||
writel(tmp | 0xff0000, mmio + hotplug_offset);
|
||||
|
||||
/* reduce TBG clock to 133 Mhz. */
|
||||
tmp = readl(mmio + PDC_TBG_MODE);
|
||||
|
|
@ -633,6 +673,7 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
|
|||
{
|
||||
static int printed_version;
|
||||
struct ata_probe_ent *probe_ent = NULL;
|
||||
struct pdc_host_priv *hp;
|
||||
unsigned long base;
|
||||
void __iomem *mmio_base;
|
||||
unsigned int board_idx = (unsigned int) ent->driver_data;
|
||||
|
|
@ -663,13 +704,12 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
|
|||
if (rc)
|
||||
goto err_out_regions;
|
||||
|
||||
probe_ent = kmalloc(sizeof(*probe_ent), GFP_KERNEL);
|
||||
probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL);
|
||||
if (probe_ent == NULL) {
|
||||
rc = -ENOMEM;
|
||||
goto err_out_regions;
|
||||
}
|
||||
|
||||
memset(probe_ent, 0, sizeof(*probe_ent));
|
||||
probe_ent->dev = pci_dev_to_dev(pdev);
|
||||
INIT_LIST_HEAD(&probe_ent->node);
|
||||
|
||||
|
|
@ -680,6 +720,16 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
|
|||
}
|
||||
base = (unsigned long) mmio_base;
|
||||
|
||||
hp = kzalloc(sizeof(*hp), GFP_KERNEL);
|
||||
if (hp == NULL) {
|
||||
rc = -ENOMEM;
|
||||
goto err_out_free_ent;
|
||||
}
|
||||
|
||||
/* Set default hotplug offset */
|
||||
hp->hotplug_offset = PDC_SATA_PLUG_CSR;
|
||||
probe_ent->private_data = hp;
|
||||
|
||||
probe_ent->sht = pdc_port_info[board_idx].sht;
|
||||
probe_ent->host_flags = pdc_port_info[board_idx].host_flags;
|
||||
probe_ent->pio_mask = pdc_port_info[board_idx].pio_mask;
|
||||
|
|
@ -699,6 +749,10 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
|
|||
|
||||
/* notice 4-port boards */
|
||||
switch (board_idx) {
|
||||
case board_40518:
|
||||
/* Override hotplug offset for SATAII150 */
|
||||
hp->hotplug_offset = PDC2_SATA_PLUG_CSR;
|
||||
/* Fall through */
|
||||
case board_20319:
|
||||
probe_ent->n_ports = 4;
|
||||
|
||||
|
|
@ -708,6 +762,10 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
|
|||
probe_ent->port[2].scr_addr = base + 0x600;
|
||||
probe_ent->port[3].scr_addr = base + 0x700;
|
||||
break;
|
||||
case board_2057x:
|
||||
/* Override hotplug offset for SATAII150 */
|
||||
hp->hotplug_offset = PDC2_SATA_PLUG_CSR;
|
||||
/* Fall through */
|
||||
case board_2037x:
|
||||
probe_ent->n_ports = 2;
|
||||
break;
|
||||
|
|
@ -733,8 +791,10 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
|
|||
/* initialize adapter */
|
||||
pdc_host_init(board_idx, probe_ent);
|
||||
|
||||
/* FIXME: check ata_device_add return value */
|
||||
ata_device_add(probe_ent);
|
||||
/* FIXME: Need any other frees than hp? */
|
||||
if (!ata_device_add(probe_ent))
|
||||
kfree(hp);
|
||||
|
||||
kfree(probe_ent);
|
||||
|
||||
return 0;
|
||||
|
|
|
|||
Loading…
Reference in New Issue