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Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/k…
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…ernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  [libata] fix build error on drivers/ata/pata_legacy.c
  pata_via: Cache and rewrite the device bit
  sata_mv: workaround for multi_count errata sata24
  sata_mv: tidy up qc->tf usage in qc_prep() functions
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Linus Torvalds committed Apr 17, 2009
2 parents d022baf + 16e6aec commit aefe647
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Showing 3 changed files with 122 additions and 23 deletions.
13 changes: 7 additions & 6 deletions drivers/ata/pata_legacy.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -285,10 +285,11 @@ static unsigned int pdc_data_xfer_vlb(struct ata_device *dev,
unsigned char *buf, unsigned int buflen, int rw)
{
int slop = buflen & 3;
struct ata_port *ap = dev->link->ap;

/* 32bit I/O capable *and* we need to write a whole number of dwords */
if (ata_id_has_dword_io(dev->id) && (slop == 0 || slop == 3)
&& (ap->pflags & ATA_PFLAG_PIO32)) {
struct ata_port *ap = dev->link->ap;
unsigned long flags;

local_irq_save(flags);
Expand Down Expand Up @@ -866,7 +867,7 @@ static struct legacy_controller controllers[] = {
0, 0, NULL },
{"PDC20230", &pdc20230_port_ops, 0x7,
ATA_FLAG_NO_IORDY,
ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32_CHANGE, NULL },
ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32CHANGE, NULL },
{"HT6560A", &ht6560a_port_ops, 0x07,
ATA_FLAG_NO_IORDY, 0, NULL },
{"HT6560B", &ht6560b_port_ops, 0x1F,
Expand All @@ -877,13 +878,13 @@ static struct legacy_controller controllers[] = {
0, 0, NULL },
{"QDI6500", &qdi6500_port_ops, 0x07,
ATA_FLAG_NO_IORDY,
ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32_CHANGE, qdi_port },
ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32CHANGE, qdi_port },
{"QDI6580", &qdi6580_port_ops, 0x1F,
0, ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32_CHANGE, qdi_port },
0, ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32CHANGE, qdi_port },
{"QDI6580DP", &qdi6580dp_port_ops, 0x1F,
0, ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32_CHANGE, qdi_port },
0, ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32CHANGE, qdi_port },
{"W83759A", &winbond_port_ops, 0x1F,
0, ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32_CHANGE,
0, ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32CHANGE,
winbond_port }
};

Expand Down
74 changes: 67 additions & 7 deletions drivers/ata/pata_via.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -62,7 +62,7 @@
#include <linux/dmi.h>

#define DRV_NAME "pata_via"
#define DRV_VERSION "0.3.3"
#define DRV_VERSION "0.3.4"

/*
* The following comes directly from Vojtech Pavlik's ide/pci/via82cxxx
Expand Down Expand Up @@ -136,6 +136,9 @@ static const struct via_isa_bridge {
{ NULL }
};

struct via_port {
u8 cached_device;
};

/*
* Cable special cases
Expand Down Expand Up @@ -346,14 +349,70 @@ static void via_set_dmamode(struct ata_port *ap, struct ata_device *adev)
*/
static void via_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
{
struct ata_taskfile tmp_tf;
struct ata_ioports *ioaddr = &ap->ioaddr;
struct via_port *vp = ap->private_data;
unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
int newctl = 0;

if (tf->ctl != ap->last_ctl) {
iowrite8(tf->ctl, ioaddr->ctl_addr);
ap->last_ctl = tf->ctl;
ata_wait_idle(ap);
newctl = 1;
}

if (tf->flags & ATA_TFLAG_DEVICE) {
iowrite8(tf->device, ioaddr->device_addr);
vp->cached_device = tf->device;
} else if (newctl)
iowrite8(vp->cached_device, ioaddr->device_addr);

if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) {
WARN_ON_ONCE(!ioaddr->ctl_addr);
iowrite8(tf->hob_feature, ioaddr->feature_addr);
iowrite8(tf->hob_nsect, ioaddr->nsect_addr);
iowrite8(tf->hob_lbal, ioaddr->lbal_addr);
iowrite8(tf->hob_lbam, ioaddr->lbam_addr);
iowrite8(tf->hob_lbah, ioaddr->lbah_addr);
VPRINTK("hob: feat 0x%X nsect 0x%X, lba 0x%X 0x%X 0x%X\n",
tf->hob_feature,
tf->hob_nsect,
tf->hob_lbal,
tf->hob_lbam,
tf->hob_lbah);
}

if (ap->ctl != ap->last_ctl && !(tf->flags & ATA_TFLAG_DEVICE)) {
tmp_tf = *tf;
tmp_tf.flags |= ATA_TFLAG_DEVICE;
tf = &tmp_tf;
if (is_addr) {
iowrite8(tf->feature, ioaddr->feature_addr);
iowrite8(tf->nsect, ioaddr->nsect_addr);
iowrite8(tf->lbal, ioaddr->lbal_addr);
iowrite8(tf->lbam, ioaddr->lbam_addr);
iowrite8(tf->lbah, ioaddr->lbah_addr);
VPRINTK("feat 0x%X nsect 0x%X lba 0x%X 0x%X 0x%X\n",
tf->feature,
tf->nsect,
tf->lbal,
tf->lbam,
tf->lbah);
}
ata_sff_tf_load(ap, tf);

ata_wait_idle(ap);
}

static int via_port_start(struct ata_port *ap)
{
struct via_port *vp;
struct pci_dev *pdev = to_pci_dev(ap->host->dev);

int ret = ata_sff_port_start(ap);
if (ret < 0)
return ret;

vp = devm_kzalloc(&pdev->dev, sizeof(struct via_port), GFP_KERNEL);
if (vp == NULL)
return -ENOMEM;
ap->private_data = vp;
return 0;
}

static struct scsi_host_template via_sht = {
Expand All @@ -367,6 +426,7 @@ static struct ata_port_operations via_port_ops = {
.set_dmamode = via_set_dmamode,
.prereset = via_pre_reset,
.sff_tf_load = via_tf_load,
.port_start = via_port_start,
};

static struct ata_port_operations via_port_ops_noirq = {
Expand Down
58 changes: 48 additions & 10 deletions drivers/ata/sata_mv.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -1881,6 +1881,39 @@ static u8 mv_bmdma_status(struct ata_port *ap)
return status;
}

static void mv_rw_multi_errata_sata24(struct ata_queued_cmd *qc)
{
struct ata_taskfile *tf = &qc->tf;
/*
* Workaround for 88SX60x1 FEr SATA#24.
*
* Chip may corrupt WRITEs if multi_count >= 4kB.
* Note that READs are unaffected.
*
* It's not clear if this errata really means "4K bytes",
* or if it always happens for multi_count > 7
* regardless of device sector_size.
*
* So, for safety, any write with multi_count > 7
* gets converted here into a regular PIO write instead:
*/
if ((tf->flags & ATA_TFLAG_WRITE) && is_multi_taskfile(tf)) {
if (qc->dev->multi_count > 7) {
switch (tf->command) {
case ATA_CMD_WRITE_MULTI:
tf->command = ATA_CMD_PIO_WRITE;
break;
case ATA_CMD_WRITE_MULTI_FUA_EXT:
tf->flags &= ~ATA_TFLAG_FUA; /* ugh */
/* fall through */
case ATA_CMD_WRITE_MULTI_EXT:
tf->command = ATA_CMD_PIO_WRITE_EXT;
break;
}
}
}
}

/**
* mv_qc_prep - Host specific command preparation.
* @qc: queued command to prepare
Expand All @@ -1898,17 +1931,24 @@ static void mv_qc_prep(struct ata_queued_cmd *qc)
struct ata_port *ap = qc->ap;
struct mv_port_priv *pp = ap->private_data;
__le16 *cw;
struct ata_taskfile *tf;
struct ata_taskfile *tf = &qc->tf;
u16 flags = 0;
unsigned in_index;

if ((qc->tf.protocol != ATA_PROT_DMA) &&
(qc->tf.protocol != ATA_PROT_NCQ))
switch (tf->protocol) {
case ATA_PROT_DMA:
case ATA_PROT_NCQ:
break; /* continue below */
case ATA_PROT_PIO:
mv_rw_multi_errata_sata24(qc);
return;
default:
return;
}

/* Fill in command request block
*/
if (!(qc->tf.flags & ATA_TFLAG_WRITE))
if (!(tf->flags & ATA_TFLAG_WRITE))
flags |= CRQB_FLAG_READ;
WARN_ON(MV_MAX_Q_DEPTH <= qc->tag);
flags |= qc->tag << CRQB_TAG_SHIFT;
Expand All @@ -1924,7 +1964,6 @@ static void mv_qc_prep(struct ata_queued_cmd *qc)
pp->crqb[in_index].ctrl_flags = cpu_to_le16(flags);

cw = &pp->crqb[in_index].ata_cmd[0];
tf = &qc->tf;

/* Sadly, the CRQB cannot accomodate all registers--there are
* only 11 bytes...so we must pick and choose required
Expand Down Expand Up @@ -1990,16 +2029,16 @@ static void mv_qc_prep_iie(struct ata_queued_cmd *qc)
struct ata_port *ap = qc->ap;
struct mv_port_priv *pp = ap->private_data;
struct mv_crqb_iie *crqb;
struct ata_taskfile *tf;
struct ata_taskfile *tf = &qc->tf;
unsigned in_index;
u32 flags = 0;

if ((qc->tf.protocol != ATA_PROT_DMA) &&
(qc->tf.protocol != ATA_PROT_NCQ))
if ((tf->protocol != ATA_PROT_DMA) &&
(tf->protocol != ATA_PROT_NCQ))
return;

/* Fill in Gen IIE command request block */
if (!(qc->tf.flags & ATA_TFLAG_WRITE))
if (!(tf->flags & ATA_TFLAG_WRITE))
flags |= CRQB_FLAG_READ;

WARN_ON(MV_MAX_Q_DEPTH <= qc->tag);
Expand All @@ -2015,7 +2054,6 @@ static void mv_qc_prep_iie(struct ata_queued_cmd *qc)
crqb->addr_hi = cpu_to_le32((pp->sg_tbl_dma[qc->tag] >> 16) >> 16);
crqb->flags = cpu_to_le32(flags);

tf = &qc->tf;
crqb->ata_cmd[0] = cpu_to_le32(
(tf->command << 16) |
(tf->feature << 24)
Expand Down

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