The following SGPIO patch for sata_nv.c is based on 2.6.18 kernel.
Signed-off by: Kuan Luo <kluo@xxxxxxxxxx>
--- linux-2.6.18/drivers/scsi/sata_nv.c.orig 2006-10-08
17:20:07.000000000 +0800
+++ linux-2.6.18/drivers/scsi/sata_nv.c 2006-10-13 11:12:01.000000000
+0800
@@ -80,6 +80,175 @@
NV_MCP_SATA_CFG_20_SATA_SPACE_EN = 0x04,
};
+//sgpio
+// Sgpio defines
+// SGPIO state defines
+#define NV_SGPIO_STATE_RESET 0
+#define NV_SGPIO_STATE_OPERATIONAL 1
+#define NV_SGPIO_STATE_ERROR 2
+
+// SGPIO command opcodes
+#define NV_SGPIO_CMD_RESET 0
+#define NV_SGPIO_CMD_READ_PARAMS 1
+#define NV_SGPIO_CMD_READ_DATA 2
+#define NV_SGPIO_CMD_WRITE_DATA 3
+
+// SGPIO command status defines
+#define NV_SGPIO_CMD_OK 0
+#define NV_SGPIO_CMD_ACTIVE 1
+#define NV_SGPIO_CMD_ERR 2
+
+#define NV_SGPIO_UPDATE_TICK 90
+#define NV_SGPIO_MIN_UPDATE_DELTA 33
+#define NV_CNTRLR_SHARE_INIT 2
+#define NV_SGPIO_MAX_ACTIVITY_ON 20
+#define NV_SGPIO_MIN_FORCE_OFF 5
+#define NV_SGPIO_PCI_CSR_OFFSET 0x58
+#define NV_SGPIO_PCI_CB_OFFSET 0x5C
+#define NV_SGPIO_DFLT_CB_SIZE 256
+#define NV_ON 1
+#define NV_OFF 0
+#ifndef bool
+#define bool u8
+#endif
+
+
+#define BF_EXTRACT(v, off, bc) \
+ ((((u8)(v)) >> (off)) & ((1 << (bc)) - 1))
+
+#define BF_INS(v, ins, off, bc) \
+ (((v) & ~((((1 << (bc)) - 1)) << (off))) | \
+ (((u8)(ins)) << (off)))
+
+#define BF_EXTRACT_U32(v, off, bc) \
+ ((((u32)(v)) >> (off)) & ((1 << (bc)) - 1))
+
+#define BF_INS_U32(v, ins, off, bc) \
+ (((v) & ~((((1 << (bc)) - 1)) << (off))) | \
+ (((u32)(ins)) << (off)))
+
+#define GET_SGPIO_STATUS(v) BF_EXTRACT(v, 0, 2)
+#define GET_CMD_STATUS(v) BF_EXTRACT(v, 3, 2)
+#define GET_CMD(v) BF_EXTRACT(v, 5, 3)
+#define SET_CMD(v, cmd) BF_INS(v, cmd, 5, 3)
+
+#define GET_ENABLE(v) BF_EXTRACT_U32(v, 23, 1)
+#define SET_ENABLE(v) BF_INS_U32(v, 1, 23, 1)
+
+// Needs to have a u8 bit-field insert.
+#define GET_ACTIVITY(v) BF_EXTRACT(v, 5, 3)
+#define SET_ACTIVITY(v, on_off) BF_INS(v, on_off, 5, 3)
+
+union nv_sgpio_nvcr
+{
+ struct {
+ u8 init_cnt;
+ u8 cb_size;
+ u8 cbver;
+ u8 rsvd;
+ } bit;
+ u32 all;
+};
+
+union nv_sgpio_tx
+{
+ u8 tx_port[4];
+ u32 all;
+};
+
+struct nv_sgpio_cb
+{
+ u64 scratch_space;
+ union nv_sgpio_nvcr nvcr;
+ u32 cr0;
+ u32 rsvd[4];
+ union nv_sgpio_tx tx[2];
+};
+
+struct nv_sgpio_host_share
+{
+ spinlock_t *plock;
+ unsigned long *ptstamp;
+};
+
+struct nv_sgpio_host_flags
+{
+ u8 sgpio_enabled:1;
+ u8 need_update:1;
+ u8 rsvd:6;
+};
+
+struct nv_host_sgpio
+{
+ struct nv_sgpio_host_flags flags;
+ u8 *pcsr;
+ struct nv_sgpio_cb *pcb;
+ struct nv_sgpio_host_share share;
+ struct timer_list sgpio_timer;
+};
+
+struct nv_sgpio_port_flags
+{
+ u8 last_state:1;
+ u8 recent_activity:1;
+ u8 rsvd:6;
+};
+
+struct nv_sgpio_led
+{
+ struct nv_sgpio_port_flags flags;
+ u8 force_off;
+ u8 last_cons_active;
+};
+
+struct nv_port_sgpio
+{
+ struct nv_sgpio_led activity;
+};
+
+static spinlock_t nv_sgpio_lock;
+static unsigned long nv_sgpio_tstamp;
+
+static inline void nv_sgpio_set_csr(u8 csr, unsigned long pcsr)
+{
+ outb(csr, pcsr);
+}
+
+static inline u8 nv_sgpio_get_csr(unsigned long pcsr)
+{
+ return inb(pcsr);
+}
+
+static inline u8 nv_sgpio_get_func(struct ata_host_set *host_set)
+{
+ u8 devfn = (to_pci_dev(host_set->dev))->devfn;
+ return (PCI_FUNC(devfn));
+}
+
+static inline u8 nv_sgpio_tx_host_offset(struct ata_host_set *host_set)
+{
+ return (nv_sgpio_get_func(host_set)/NV_CNTRLR_SHARE_INIT);
+}
+
+static inline u8 nv_sgpio_calc_tx_offset(u8 cntrlr, u8 channel)
+{
+ return (sizeof(union nv_sgpio_tx) - (NV_CNTRLR_SHARE_INIT *
+ (cntrlr % NV_CNTRLR_SHARE_INIT)) - channel - 1);
+}
+
+static inline u8 nv_sgpio_tx_port_offset(struct ata_port *ap)
+{
+ u8 cntrlr = nv_sgpio_get_func(ap->host_set);
+ return (nv_sgpio_calc_tx_offset(cntrlr, ap->port_no));
+}
+
+static inline bool nv_sgpio_capable(const struct pci_device_id *ent)
+{
+ if (ent->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA2)
+ return 1;
+ else
+ return 0;
+}
static int nv_init_one (struct pci_dev *pdev, const struct
pci_device_id *ent);
static void nv_ck804_host_stop(struct ata_host_set *host_set);
static irqreturn_t nv_generic_interrupt(int irq, void *dev_instance,
@@ -90,7 +259,10 @@
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);
-
+static void nv_host_stop (struct ata_host_set *host_set);
+static int nv_port_start(struct ata_port *ap);
+static void nv_port_stop(struct ata_port *ap);
+static int nv_qc_issue(struct ata_queued_cmd *qc);
static void nv_nf2_freeze(struct ata_port *ap);
static void nv_nf2_thaw(struct ata_port *ap);
static void nv_ck804_freeze(struct ata_port *ap);
@@ -147,6 +319,27 @@
{ 0, } /* terminate list */
};
+struct nv_host
+{
+ unsigned long host_flags;
+ struct nv_host_sgpio host_sgpio;
+};
+
+struct nv_port
+{
+ struct nv_port_sgpio port_sgpio;
+};
+
+// SGPIO function prototypes
+static void nv_sgpio_init(struct pci_dev *pdev, struct nv_host *phost);
+static void nv_sgpio_reset(u8 *pcsr);
+static void nv_sgpio_set_timer(struct timer_list *ptimer,
+ unsigned int timeout_msec);
+static void nv_sgpio_timer_handler(unsigned long ptr);
+static void nv_sgpio_host_cleanup(struct nv_host *host);
+static bool nv_sgpio_update_led(struct nv_sgpio_led *led, bool
*on_off);
+static void nv_sgpio_clear_all_leds(struct ata_port *ap);
+static bool nv_sgpio_send_cmd(struct nv_host *host, u8 cmd);
static struct pci_driver nv_pci_driver = {
.name = DRV_NAME,
.id_table = nv_pci_tbl,
@@ -184,7 +377,7 @@
.bmdma_stop = ata_bmdma_stop,
.bmdma_status = ata_bmdma_status,
.qc_prep = ata_qc_prep,
- .qc_issue = ata_qc_issue_prot,
+ .qc_issue = nv_qc_issue,
.freeze = ata_bmdma_freeze,
.thaw = ata_bmdma_thaw,
.error_handler = nv_error_handler,
@@ -194,9 +387,9 @@
.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,
+ .port_start = nv_port_start,
+ .port_stop = nv_port_stop,
+ .host_stop = nv_host_stop,
};
static const struct ata_port_operations nv_nf2_ops = {
@@ -211,7 +404,7 @@
.bmdma_stop = ata_bmdma_stop,
.bmdma_status = ata_bmdma_status,
.qc_prep = ata_qc_prep,
- .qc_issue = ata_qc_issue_prot,
+ .qc_issue = nv_qc_issue,
.freeze = nv_nf2_freeze,
.thaw = nv_nf2_thaw,
.error_handler = nv_error_handler,
@@ -221,9 +414,9 @@
.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,
+ .port_start = nv_port_start,
+ .port_stop = nv_port_stop,
+ .host_stop = nv_host_stop,
};
static const struct ata_port_operations nv_ck804_ops = {
@@ -238,7 +431,7 @@
.bmdma_stop = ata_bmdma_stop,
.bmdma_status = ata_bmdma_status,
.qc_prep = ata_qc_prep,
- .qc_issue = ata_qc_issue_prot,
+ .qc_issue = nv_qc_issue,
.freeze = nv_ck804_freeze,
.thaw = nv_ck804_thaw,
.error_handler = nv_error_handler,
@@ -248,8 +441,8 @@
.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,
+ .port_start = nv_port_start,
+ .port_stop = nv_port_stop,
.host_stop = nv_ck804_host_stop,
};
@@ -480,10 +673,10 @@
ata_bmdma_drive_eh(ap, ata_std_prereset, ata_std_softreset,
nv_hardreset, ata_std_postreset);
}
-
static int nv_init_one (struct pci_dev *pdev, const struct
pci_device_id *ent)
{
static int printed_version = 0;
+ struct nv_host *host;
struct ata_port_info *ppi;
struct ata_probe_ent *probe_ent;
int pci_dev_busy = 0;
@@ -525,6 +718,13 @@
if (!probe_ent)
goto err_out_regions;
+ host = kmalloc(sizeof(struct nv_host), GFP_KERNEL);
+ if (!host)
+ goto err_out_free_ent;
+
+ memset(host, 0, sizeof(struct nv_host));
+
+ probe_ent->private_data = host;
probe_ent->mmio_base = pci_iomap(pdev, 5, 0);
if (!probe_ent->mmio_base) {
rc = -EIO;
@@ -550,6 +750,8 @@
rc = ata_device_add(probe_ent);
if (rc != NV_PORTS)
goto err_out_iounmap;
+ if (nv_sgpio_capable(ent))
+ nv_sgpio_init(pdev, host);
kfree(probe_ent);
@@ -568,12 +770,56 @@
return rc;
}
+static int nv_port_start(struct ata_port *ap)
+{
+ int stat;
+ struct nv_port *port;
+
+ stat = ata_port_start(ap);
+ if (stat) {
+ return stat;
+ }
+
+ port = kmalloc(sizeof(struct nv_port), GFP_KERNEL);
+ if (!port)
+ goto err_out_no_free;
+
+ memset(port, 0, sizeof(struct nv_port));
+
+ ap->private_data = port;
+ return 0;
+
+err_out_no_free:
+ return 1;
+}
+
+static void nv_port_stop(struct ata_port *ap)
+{
+ nv_sgpio_clear_all_leds(ap);
+
+ if (ap->private_data) {
+ kfree(ap->private_data);
+ ap->private_data = NULL;
+ }
+ ata_port_stop(ap);
+}
+
+static int nv_qc_issue(struct ata_queued_cmd *qc)
+{
+ struct nv_port *port = qc->ap->private_data;
+
+ if (port)
+ port->port_sgpio.activity.flags.recent_activity = 1;
+ return (ata_qc_issue_prot(qc));
+}
static void nv_ck804_host_stop(struct ata_host_set *host_set)
{
+ struct nv_host *host = host_set->private_data;
struct pci_dev *pdev = to_pci_dev(host_set->dev);
u8 regval;
/* disable SATA space for CK804 */
+ nv_sgpio_host_cleanup(host);
pci_read_config_byte(pdev, NV_MCP_SATA_CFG_20, ®val);
regval &= ~NV_MCP_SATA_CFG_20_SATA_SPACE_EN;
pci_write_config_byte(pdev, NV_MCP_SATA_CFG_20, regval);
@@ -581,6 +827,277 @@
ata_pci_host_stop(host_set);
}
+static void nv_host_stop (struct ata_host_set *host_set)
+{
+ struct nv_host *host = host_set->private_data;
+
+
+ nv_sgpio_host_cleanup(host);
+ kfree(host);
+ ata_pci_host_stop(host_set);
+
+}
+
+static void nv_sgpio_init(struct pci_dev *pdev, struct nv_host *phost)
+{
+ u16 csr_add;
+ u32 cb_add, temp32;
+ struct device *dev = pci_dev_to_dev(pdev);
+ struct ata_host_set *host_set = dev_get_drvdata(dev);
+ u8 pro=0;
+
+ pci_read_config_word(pdev, NV_SGPIO_PCI_CSR_OFFSET, &csr_add);
+ pci_read_config_dword(pdev, NV_SGPIO_PCI_CB_OFFSET, &cb_add);
+ pci_read_config_byte(pdev, 0xA4, &pro);
+
+ if (csr_add == 0 || cb_add == 0)
+ return;
+
+ if (!(pro&0x40))
+ return;
+
+ temp32 = csr_add;
+ phost->host_sgpio.pcsr = (void *)temp32;
+ phost->host_sgpio.pcb = phys_to_virt(cb_add);
+
+ if (phost->host_sgpio.pcb->nvcr.bit.init_cnt!=0x2 ||
phost->host_sgpio.pcb->nvcr.bit.cbver!=0x0)
+ return;
+
+ if (temp32 <=0x200 || temp32 >=0xFFFE )
+ return;
+
+ if (cb_add<=0x80000 || cb_add>=0x9FC00)
+ return;
+
+ if (phost->host_sgpio.pcb->scratch_space == 0) {
+ spin_lock_init(&nv_sgpio_lock);
+ phost->host_sgpio.share.plock = &nv_sgpio_lock;
+ phost->host_sgpio.share.ptstamp = &nv_sgpio_tstamp;
+ phost->host_sgpio.pcb->scratch_space =
+ (unsigned long)&phost->host_sgpio.share;
+ spin_lock(phost->host_sgpio.share.plock);
+ nv_sgpio_reset(phost->host_sgpio.pcsr);
+ phost->host_sgpio.pcb->cr0 =
+ SET_ENABLE(phost->host_sgpio.pcb->cr0);
+
+ spin_unlock(phost->host_sgpio.share.plock);
+ }
+
+ phost->host_sgpio.share =
+ *(struct nv_sgpio_host_share *)(unsigned long)
+ phost->host_sgpio.pcb->scratch_space;
+ phost->host_sgpio.flags.sgpio_enabled = 1;
+
+ init_timer(&phost->host_sgpio.sgpio_timer);
+ phost->host_sgpio.sgpio_timer.data = (unsigned long)host_set;
+ nv_sgpio_set_timer(&phost->host_sgpio.sgpio_timer,
+ NV_SGPIO_UPDATE_TICK);
+}
+
+static void nv_sgpio_set_timer(struct timer_list *ptimer, unsigned int
timeout_msec)
+{
+ if (!ptimer)
+ return;
+ ptimer->function = nv_sgpio_timer_handler;
+ ptimer->expires = msecs_to_jiffies(timeout_msec) + jiffies;
+ add_timer(ptimer);
+}
+
+static void nv_sgpio_timer_handler(unsigned long context)
+{
+
+ struct ata_host_set *host_set = (struct ata_host_set *)context;
+ struct nv_host *host;
+ u8 count, host_offset, port_offset;
+ union nv_sgpio_tx tx;
+ bool on_off;
+ unsigned long mask = 0xFFFF;
+ struct nv_port *port;
+
+ if (!host_set)
+ goto err_out;
+ else
+ host = (struct nv_host *)host_set->private_data;
+
+ if (!host->host_sgpio.flags.sgpio_enabled)
+ goto err_out;
+
+ host_offset = nv_sgpio_tx_host_offset(host_set);
+
+ spin_lock(host->host_sgpio.share.plock);
+ tx = host->host_sgpio.pcb->tx[host_offset];
+ spin_unlock(host->host_sgpio.share.plock);
+
+ for (count = 0; count < host_set->n_ports; count++) {
+ struct ata_port *ap;
+
+ ap = host_set->ports[count];
+
+ if (!(ap && !(ap->flags & ATA_FLAG_DISABLED)))
+ continue;
+
+ port = (struct nv_port *)ap->private_data;
+ if (!port)
+ continue;
+ port_offset = nv_sgpio_tx_port_offset(ap);
+ on_off = GET_ACTIVITY(tx.tx_port[port_offset]);
+ if (nv_sgpio_update_led(&port->port_sgpio.activity,
&on_off)) {
+ tx.tx_port[port_offset] =
+ SET_ACTIVITY(tx.tx_port[port_offset],
on_off);
+ host->host_sgpio.flags.need_update = 1;
+ }
+ }
+
+
+ if (host->host_sgpio.flags.need_update) {
+ spin_lock(host->host_sgpio.share.plock);
+ if (nv_sgpio_get_func(host_set)
+ % NV_CNTRLR_SHARE_INIT == 0) {
+ host->host_sgpio.pcb->tx[host_offset].all &=
mask;
+ mask = mask << 16;
+ tx.all &= mask;
+ } else {
+ tx.all &= mask;
+ mask = mask << 16;
+ host->host_sgpio.pcb->tx[host_offset].all &=
mask;
+ }
+ host->host_sgpio.pcb->tx[host_offset].all |= tx.all;
+ spin_unlock(host->host_sgpio.share.plock);
+
+ if (nv_sgpio_send_cmd(host, NV_SGPIO_CMD_WRITE_DATA)) {
+ host->host_sgpio.flags.need_update = 0;
+ return;
+ }
+ } else {
+ nv_sgpio_set_timer(&host->host_sgpio.sgpio_timer,
+ NV_SGPIO_UPDATE_TICK);
+ }
+err_out:
+ return;
+}
+
+static bool nv_sgpio_send_cmd(struct nv_host *host, u8 cmd)
+{
+ u8 csr;
+ unsigned long *ptstamp;
+
+ spin_lock(host->host_sgpio.share.plock);
+ ptstamp = host->host_sgpio.share.ptstamp;
+ if (jiffies_to_msecs(jiffies - *ptstamp) >=
NV_SGPIO_MIN_UPDATE_DELTA) {
+ csr = nv_sgpio_get_csr((unsigned
long)host->host_sgpio.pcsr);
+ if ((GET_SGPIO_STATUS(csr) !=
NV_SGPIO_STATE_OPERATIONAL) ||
+ (GET_CMD_STATUS(csr) == NV_SGPIO_CMD_ACTIVE)) {
+
+ } else {
+ host->host_sgpio.pcb->cr0 =
+ SET_ENABLE(host->host_sgpio.pcb->cr0);
+ csr = 0;
+ csr = SET_CMD(csr, cmd);
+ nv_sgpio_set_csr(csr,
+ (unsigned long)host->host_sgpio.pcsr);
+ *ptstamp = jiffies;
+ }
+ spin_unlock(host->host_sgpio.share.plock);
+ nv_sgpio_set_timer(&host->host_sgpio.sgpio_timer,
+ NV_SGPIO_UPDATE_TICK);
+ return 1;
+ } else {
+ spin_unlock(host->host_sgpio.share.plock);
+ nv_sgpio_set_timer(&host->host_sgpio.sgpio_timer,
+ (NV_SGPIO_MIN_UPDATE_DELTA -
+ jiffies_to_msecs(jiffies - *ptstamp)));
+ return 0;
+ }
+}
+
+static bool nv_sgpio_update_led(struct nv_sgpio_led *led, bool *on_off)
+{
+ bool need_update = 0;
+
+ if (led->force_off > 0) {
+ led->force_off--;
+ } else if (led->flags.recent_activity ^ led->flags.last_state) {
+ *on_off = led->flags.recent_activity;
+ led->flags.last_state = led->flags.recent_activity;
+ need_update = 1;
+ } else if ((led->flags.recent_activity & led->flags.last_state)
&&
+ (led->last_cons_active >= NV_SGPIO_MAX_ACTIVITY_ON)) {
+ *on_off = NV_OFF;
+ led->flags.last_state = NV_OFF;
+ led->force_off = NV_SGPIO_MIN_FORCE_OFF;
+ need_update = 1;
+ }
+
+ if (*on_off)
+ led->last_cons_active++;
+ else
+ led->last_cons_active = 0;
+
+ led->flags.recent_activity = 0;
+ return need_update;
+}
+
+static void nv_sgpio_reset(u8 *pcsr)
+{
+ u8 csr;
+
+ csr = nv_sgpio_get_csr((unsigned long)pcsr);
+ if (GET_SGPIO_STATUS(csr) == NV_SGPIO_STATE_RESET) {
+ csr = 0;
+ csr = SET_CMD(csr, NV_SGPIO_CMD_RESET);
+ nv_sgpio_set_csr(csr, (unsigned long)pcsr);
+ }
+ csr = 0;
+ csr = SET_CMD(csr, NV_SGPIO_CMD_READ_PARAMS);
+ nv_sgpio_set_csr(csr, (unsigned long)pcsr);
+}
+
+static void nv_sgpio_host_cleanup(struct nv_host *host)
+{
+ u8 csr;
+
+ if (!host)
+ return;
+
+ if (host->host_sgpio.flags.sgpio_enabled) {
+ spin_lock(host->host_sgpio.share.plock);
+ host->host_sgpio.pcb->cr0 =
SET_ENABLE(host->host_sgpio.pcb->cr0);
+ csr = 0;
+ csr = SET_CMD(csr, NV_SGPIO_CMD_WRITE_DATA);
+ nv_sgpio_set_csr(csr,(unsigned
long)host->host_sgpio.pcsr);
+ spin_unlock(host->host_sgpio.share.plock);
+
+ if (timer_pending(&host->host_sgpio.sgpio_timer))
+ del_timer(&host->host_sgpio.sgpio_timer);
+ host->host_sgpio.flags.sgpio_enabled = 0;
+ host->host_sgpio.pcb->scratch_space = 0;
+ }
+}
+
+static void nv_sgpio_clear_all_leds(struct ata_port *ap)
+{
+ struct nv_port *port = ap->private_data;
+ struct nv_host *host;
+ u8 host_offset, port_offset;
+
+ if (!port || !ap->host_set)
+ return;
+ if (!ap->host_set->private_data)
+ return;
+
+ host = ap->host_set->private_data;
+ if (!host->host_sgpio.flags.sgpio_enabled)
+ return;
+
+ host_offset = nv_sgpio_tx_host_offset(ap->host_set);
+ port_offset = nv_sgpio_tx_port_offset(ap);
+
+ spin_lock(host->host_sgpio.share.plock);
+ host->host_sgpio.pcb->tx[host_offset].tx_port[port_offset] = 0;
+ host->host_sgpio.flags.need_update = 1;
+ spin_unlock(host->host_sgpio.share.plock);
+}
+
static int __init nv_init(void)
{
return pci_module_init(&nv_pci_driver);
Best Regards,
Kuan luo
MCP Driver - Shanghai ZPK
Tel: 86 21 61041936
kluo@xxxxxxxxxx
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