Commit 520d06f9 authored by Tejun Heo's avatar Tejun Heo Committed by Jeff Garzik

libata: remove check_status from non-SFF drivers

Now that all SFF stuff is separated out of core layer, core layer
doesn't call ops->[alt_]check_status().  In fact, no one calls them
for non-SFF drivers anymore.  Kill them.
Signed-off-by: default avatarTejun Heo <htejun@gmail.com>
parent 4c9bf4e7
......@@ -247,7 +247,6 @@ static bool ahci_qc_fill_rtf(struct ata_queued_cmd *qc);
static int ahci_port_start(struct ata_port *ap);
static void ahci_port_stop(struct ata_port *ap);
static void ahci_qc_prep(struct ata_queued_cmd *qc);
static u8 ahci_check_status(struct ata_port *ap);
static void ahci_freeze(struct ata_port *ap);
static void ahci_thaw(struct ata_port *ap);
static void ahci_pmp_attach(struct ata_port *ap);
......@@ -292,9 +291,6 @@ static struct scsi_host_template ahci_sht = {
static struct ata_port_operations ahci_ops = {
.inherits = &sata_pmp_port_ops,
.sff_check_status = ahci_check_status,
.sff_check_altstatus = ahci_check_status,
.qc_defer = sata_pmp_qc_defer_cmd_switch,
.qc_prep = ahci_qc_prep,
.qc_issue = ahci_qc_issue,
......@@ -1185,11 +1181,12 @@ static int ahci_kick_engine(struct ata_port *ap, int force_restart)
{
void __iomem *port_mmio = ap->ioaddr.cmd_addr;
struct ahci_host_priv *hpriv = ap->host->private_data;
u8 status = readl(port_mmio + PORT_TFDATA) & 0xFF;
u32 tmp;
int busy, rc;
/* do we need to kick the port? */
busy = ahci_check_status(ap) & (ATA_BUSY | ATA_DRQ);
busy = status & (ATA_BUSY | ATA_DRQ);
if (!busy && !force_restart)
return 0;
......@@ -1466,13 +1463,6 @@ static int ahci_pmp_softreset(struct ata_link *link, unsigned int *class,
return ahci_do_softreset(link, class, link->pmp, deadline);
}
static u8 ahci_check_status(struct ata_port *ap)
{
void __iomem *mmio = ap->ioaddr.cmd_addr;
return readl(mmio + PORT_TFDATA) & 0xFF;
}
static unsigned int ahci_fill_sg(struct ata_queued_cmd *qc, void *cmd_tbl)
{
struct scatterlist *sg;
......
......@@ -244,17 +244,6 @@ struct sata_fsl_port_priv {
dma_addr_t cmdslot_paddr;
struct command_desc *cmdentry;
dma_addr_t cmdentry_paddr;
/*
* SATA FSL controller has a Status FIS which should contain the
* received D2H FIS & taskfile registers. This SFIS is present in
* the command descriptor, and to have a ready reference to it,
* we are caching it here, quite similar to what is done in H/W on
* AHCI compliant devices by copying taskfile fields to a 32-bit
* register.
*/
struct ata_taskfile tf;
};
/*
......@@ -569,31 +558,6 @@ static void sata_fsl_thaw(struct ata_port *ap)
ioread32(hcr_base + HCONTROL), ioread32(hcr_base + HSTATUS));
}
/*
* NOTE : 1st D2H FIS from device does not update sfis in command descriptor.
*/
static inline void sata_fsl_cache_taskfile_from_d2h_fis(struct ata_queued_cmd
*qc,
struct ata_port *ap)
{
struct sata_fsl_port_priv *pp = ap->private_data;
struct sata_fsl_host_priv *host_priv = ap->host->private_data;
void __iomem *hcr_base = host_priv->hcr_base;
unsigned int tag = sata_fsl_tag(qc->tag, hcr_base);
struct command_desc *cd;
cd = pp->cmdentry + tag;
ata_tf_from_fis(cd->sfis, &pp->tf);
}
static u8 sata_fsl_check_status(struct ata_port *ap)
{
struct sata_fsl_port_priv *pp = ap->private_data;
return pp->tf.command;
}
static int sata_fsl_port_start(struct ata_port *ap)
{
struct device *dev = ap->host->dev;
......@@ -1004,10 +968,9 @@ static void sata_fsl_error_intr(struct ata_port *ap)
/* record error info */
qc = ata_qc_from_tag(ap, link->active_tag);
if (qc) {
sata_fsl_cache_taskfile_from_d2h_fis(qc, qc->ap);
if (qc)
qc->err_mask |= err_mask;
} else
else
ehi->err_mask |= err_mask;
ehi->action |= action;
......@@ -1020,14 +983,6 @@ static void sata_fsl_error_intr(struct ata_port *ap)
ata_port_abort(ap);
}
static void sata_fsl_qc_complete(struct ata_queued_cmd *qc)
{
if (qc->flags & ATA_QCFLAG_RESULT_TF) {
DPRINTK("xx_qc_complete called\n");
sata_fsl_cache_taskfile_from_d2h_fis(qc, qc->ap);
}
}
static void sata_fsl_host_intr(struct ata_port *ap)
{
struct ata_link *link = &ap->link;
......@@ -1068,10 +1023,8 @@ static void sata_fsl_host_intr(struct ata_port *ap)
for (i = 0; i < SATA_FSL_QUEUE_DEPTH; i++) {
if (qc_active & (1 << i)) {
qc = ata_qc_from_tag(ap, i);
if (qc) {
sata_fsl_qc_complete(qc);
if (qc)
ata_qc_complete(qc);
}
DPRINTK
("completing ncq cmd,tag=%d,CC=0x%x,CA=0x%x\n",
i, ioread32(hcr_base + CC),
......@@ -1087,10 +1040,8 @@ static void sata_fsl_host_intr(struct ata_port *ap)
DPRINTK("completing non-ncq cmd, tag=%d,CC=0x%x\n",
link->active_tag, ioread32(hcr_base + CC));
if (qc) {
sata_fsl_qc_complete(qc);
if (qc)
ata_qc_complete(qc);
}
} else {
/* Spurious Interrupt!! */
DPRINTK("spurious interrupt!!, CC = 0x%x\n",
......@@ -1197,9 +1148,6 @@ static struct scsi_host_template sata_fsl_sht = {
static const struct ata_port_operations sata_fsl_ops = {
.inherits = &sata_port_ops,
.sff_check_status = sata_fsl_check_status,
.sff_check_altstatus = sata_fsl_check_status,
.qc_prep = sata_fsl_qc_prep,
.qc_issue = sata_fsl_qc_issue,
.qc_fill_rtf = sata_fsl_qc_fill_rtf,
......
......@@ -336,12 +336,10 @@ static struct sil24_cerr_info {
struct sil24_port_priv {
union sil24_cmd_block *cmd_block; /* 32 cmd blocks */
dma_addr_t cmd_block_dma; /* DMA base addr for them */
struct ata_taskfile tf; /* Cached taskfile registers */
int do_port_rst;
};
static void sil24_dev_config(struct ata_device *dev);
static u8 sil24_check_status(struct ata_port *ap);
static int sil24_scr_read(struct ata_port *ap, unsigned sc_reg, u32 *val);
static int sil24_scr_write(struct ata_port *ap, unsigned sc_reg, u32 val);
static int sil24_qc_defer(struct ata_queued_cmd *qc);
......@@ -401,8 +399,6 @@ static struct scsi_host_template sil24_sht = {
static struct ata_port_operations sil24_ops = {
.inherits = &sata_pmp_port_ops,
.sff_check_status = sil24_check_status,
.sff_check_altstatus = sil24_check_status,
.qc_defer = sil24_qc_defer,
.qc_prep = sil24_qc_prep,
.qc_issue = sil24_qc_issue,
......@@ -492,12 +488,6 @@ static void sil24_read_tf(struct ata_port *ap, int tag, struct ata_taskfile *tf)
ata_tf_from_fis(fis, tf);
}
static u8 sil24_check_status(struct ata_port *ap)
{
struct sil24_port_priv *pp = ap->private_data;
return pp->tf.command;
}
static int sil24_scr_map[] = {
[SCR_CONTROL] = 0,
[SCR_STATUS] = 1,
......@@ -1074,10 +1064,9 @@ static void sil24_error_intr(struct ata_port *ap)
}
/* record error info */
if (qc) {
sil24_read_tf(ap, qc->tag, &pp->tf);
if (qc)
qc->err_mask |= err_mask;
} else
else
ehi->err_mask |= err_mask;
ehi->action |= action;
......@@ -1210,8 +1199,6 @@ static int sil24_port_start(struct ata_port *ap)
if (!pp)
return -ENOMEM;
pp->tf.command = ATA_DRDY;
cb = dmam_alloc_coherent(dev, cb_size, &cb_dma, GFP_KERNEL);
if (!cb)
return -ENOMEM;
......
......@@ -5246,35 +5246,7 @@ static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
return true;
}
/**
* ipr_ata_check_status - Return last ATA status
* @ap: ATA port
*
* Return value:
* ATA status
**/
static u8 ipr_ata_check_status(struct ata_port *ap)
{
struct ipr_sata_port *sata_port = ap->private_data;
return sata_port->ioasa.status;
}
/**
* ipr_ata_check_altstatus - Return last ATA altstatus
* @ap: ATA port
*
* Return value:
* Alt ATA status
**/
static u8 ipr_ata_check_altstatus(struct ata_port *ap)
{
struct ipr_sata_port *sata_port = ap->private_data;
return sata_port->ioasa.alt_status;
}
static struct ata_port_operations ipr_sata_ops = {
.sff_check_status = ipr_ata_check_status,
.sff_check_altstatus = ipr_ata_check_altstatus,
.sff_dev_select = ata_noop_dev_select,
.phy_reset = ipr_ata_phy_reset,
.hardreset = ipr_sata_reset,
......
......@@ -233,12 +233,6 @@ static bool sas_ata_qc_fill_rtf(struct ata_queued_cmd *qc)
return true;
}
static u8 sas_ata_check_status(struct ata_port *ap)
{
struct domain_device *dev = ap->private_data;
return dev->sata_dev.tf.command;
}
static void sas_ata_phy_reset(struct ata_port *ap)
{
struct domain_device *dev = ap->private_data;
......@@ -350,8 +344,6 @@ static int sas_ata_scr_read(struct ata_port *ap, unsigned int sc_reg_in,
}
static struct ata_port_operations sas_sata_ops = {
.sff_check_status = sas_ata_check_status,
.sff_check_altstatus = sas_ata_check_status,
.sff_dev_select = ata_noop_dev_select,
.phy_reset = sas_ata_phy_reset,
.post_internal_cmd = sas_ata_post_internal,
......
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