Add tracepoints for bus-master DMA and taskfile related functions.
That allows us to drop the relevant DPRINTK() calls.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
#include <scsi/scsi_host.h>
#include <linux/libata.h>
#include <linux/dmi.h>
+#include <trace/events/libata.h>
#define DRV_NAME "ata_piix"
#define DRV_VERSION "2.13"
static bool piix_irq_check(struct ata_port *ap)
{
+ unsigned char host_stat;
+
if (unlikely(!ap->ioaddr.bmdma_addr))
return false;
- return ap->ops->bmdma_status(ap) & ATA_DMA_INTR;
+ host_stat = ap->ops->bmdma_status(ap);
+ trace_ata_bmdma_status(ap, host_stat);
+
+ return host_stat & ATA_DMA_INTR;
}
#ifdef CONFIG_PM_SLEEP
dev_printk(KERN_DEBUG, dev, "version %s\n", version);
}
EXPORT_SYMBOL(ata_print_version);
+
+EXPORT_TRACEPOINT_SYMBOL_GPL(ata_tf_load);
+EXPORT_TRACEPOINT_SYMBOL_GPL(ata_exec_command);
+EXPORT_TRACEPOINT_SYMBOL_GPL(ata_bmdma_setup);
+EXPORT_TRACEPOINT_SYMBOL_GPL(ata_bmdma_start);
+EXPORT_TRACEPOINT_SYMBOL_GPL(ata_bmdma_status);
#include <linux/module.h>
#include <linux/libata.h>
#include <linux/highmem.h>
-
+#include <trace/events/libata.h>
#include "libata.h"
static struct workqueue_struct *ata_sff_wq;
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 (is_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);
}
- if (tf->flags & ATA_TFLAG_DEVICE) {
+ if (tf->flags & ATA_TFLAG_DEVICE)
iowrite8(tf->device, ioaddr->device_addr);
- VPRINTK("device 0x%X\n", tf->device);
- }
ata_wait_idle(ap);
}
*/
void ata_sff_exec_command(struct ata_port *ap, const struct ata_taskfile *tf)
{
- DPRINTK("ata%u: cmd 0x%X\n", ap->print_id, tf->command);
-
iowrite8(tf->command, ap->ioaddr.command_addr);
ata_sff_pause(ap);
}
* ata_tf_to_host - issue ATA taskfile to host controller
* @ap: port to which command is being issued
* @tf: ATA taskfile register set
+ * @tag: tag of the associated command
*
* Issues ATA taskfile register set to ATA host controller,
* with proper synchronization with interrupt handler and
* spin_lock_irqsave(host lock)
*/
static inline void ata_tf_to_host(struct ata_port *ap,
- const struct ata_taskfile *tf)
+ const struct ata_taskfile *tf,
+ unsigned int tag)
{
+ trace_ata_tf_load(ap, tf);
ap->ops->sff_tf_load(ap, tf);
+ trace_ata_exec_command(ap, tf, tag);
ap->ops->sff_exec_command(ap, tf);
}
case ATAPI_PROT_DMA:
ap->hsm_task_state = HSM_ST_LAST;
/* initiate bmdma */
+ trace_ata_bmdma_start(ap, &qc->tf, qc->tag);
ap->ops->bmdma_start(qc);
break;
#endif /* CONFIG_ATA_BMDMA */
if (qc->tf.flags & ATA_TFLAG_POLLING)
ata_qc_set_polling(qc);
- ata_tf_to_host(ap, &qc->tf);
+ ata_tf_to_host(ap, &qc->tf, qc->tag);
ap->hsm_task_state = HSM_ST_LAST;
if (qc->tf.flags & ATA_TFLAG_POLLING)
if (qc->tf.flags & ATA_TFLAG_POLLING)
ata_qc_set_polling(qc);
- ata_tf_to_host(ap, &qc->tf);
+ ata_tf_to_host(ap, &qc->tf, qc->tag);
if (qc->tf.flags & ATA_TFLAG_WRITE) {
/* PIO data out protocol */
if (qc->tf.flags & ATA_TFLAG_POLLING)
ata_qc_set_polling(qc);
- ata_tf_to_host(ap, &qc->tf);
+ ata_tf_to_host(ap, &qc->tf, qc->tag);
ap->hsm_task_state = HSM_ST_FIRST;
case ATA_PROT_DMA:
WARN_ON_ONCE(qc->tf.flags & ATA_TFLAG_POLLING);
+ trace_ata_tf_load(ap, &qc->tf);
ap->ops->sff_tf_load(ap, &qc->tf); /* load tf registers */
+ trace_ata_bmdma_setup(ap, &qc->tf, qc->tag);
ap->ops->bmdma_setup(qc); /* set up bmdma */
+ trace_ata_bmdma_start(ap, &qc->tf, qc->tag);
ap->ops->bmdma_start(qc); /* initiate bmdma */
ap->hsm_task_state = HSM_ST_LAST;
break;
case ATAPI_PROT_DMA:
WARN_ON_ONCE(qc->tf.flags & ATA_TFLAG_POLLING);
+ trace_ata_tf_load(ap, &qc->tf);
ap->ops->sff_tf_load(ap, &qc->tf); /* load tf registers */
+ trace_ata_bmdma_setup(ap, &qc->tf, qc->tag);
ap->ops->bmdma_setup(qc); /* set up bmdma */
ap->hsm_task_state = HSM_ST_FIRST;
if (ap->hsm_task_state == HSM_ST_LAST && ata_is_dma(qc->tf.protocol)) {
/* check status of DMA engine */
host_stat = ap->ops->bmdma_status(ap);
- VPRINTK("ata%u: host_stat 0x%X\n", ap->print_id, host_stat);
+ trace_ata_bmdma_status(ap, host_stat);
/* if it's not our irq... */
if (!(host_stat & ATA_DMA_INTR))
return ata_sff_idle_irq(ap);
/* before we do anything else, clear DMA-Start bit */
+ trace_ata_bmdma_stop(ap, &qc->tf, qc->tag);
ap->ops->bmdma_stop(qc);
bmdma_stopped = true;
u8 host_stat;
host_stat = ap->ops->bmdma_status(ap);
+ trace_ata_bmdma_status(ap, host_stat);
/* BMDMA controllers indicate host bus error by
* setting DMA_ERR bit and timing out. As it wasn't
thaw = true;
}
+ trace_ata_bmdma_stop(ap, &qc->tf, qc->tag);
ap->ops->bmdma_stop(qc);
/* if we're gonna thaw, make sure IRQ is clear */
if (ata_is_dma(qc->tf.protocol)) {
spin_lock_irqsave(ap->lock, flags);
+ trace_ata_bmdma_stop(ap, &qc->tf, qc->tag);
ap->ops->bmdma_stop(qc);
spin_unlock_irqrestore(ap->lock, flags);
}
}
const char *
+libata_trace_parse_host_stat(struct trace_seq *p, unsigned char host_stat)
+{
+ const char *ret = trace_seq_buffer_ptr(p);
+
+ trace_seq_printf(p, "{ ");
+ if (host_stat & ATA_DMA_INTR)
+ trace_seq_printf(p, "INTR ");
+ if (host_stat & ATA_DMA_ERR)
+ trace_seq_printf(p, "ERR ");
+ if (host_stat & ATA_DMA_ACTIVE)
+ trace_seq_printf(p, "ACTIVE ");
+ trace_seq_putc(p, '}');
+ trace_seq_putc(p, 0);
+
+ return ret;
+}
+
+const char *
libata_trace_parse_eh_action(struct trace_seq *p, unsigned int eh_action)
{
const char *ret = trace_seq_buffer_ptr(p);
#include <linux/spinlock.h>
#include <linux/types.h>
#include <linux/workqueue.h>
+#include <trace/events/libata.h>
#define DRIVER_NAME "arasan_cf"
#define TIMEOUT msecs_to_jiffies(3000)
case ATA_PROT_DMA:
WARN_ON_ONCE(qc->tf.flags & ATA_TFLAG_POLLING);
+ trace_ata_tf_load(ap, &qc->tf);
ap->ops->sff_tf_load(ap, &qc->tf);
acdev->dma_status = 0;
acdev->qc = qc;
+ trace_ata_bmdma_start(ap, &qc->tf, qc->tag);
arasan_cf_dma_start(acdev);
ap->hsm_task_state = HSM_ST_LAST;
break;
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <scsi/scsi_host.h>
-
+#include <trace/events/libata.h>
#include <asm/byteorder.h>
#include <asm/octeon/octeon.h>
{
/* The base of the registers is at ioaddr.data_addr. */
void __iomem *base = ap->ioaddr.data_addr;
- u16 blob;
+ u16 blob = 0;
- if (tf->flags & ATA_TFLAG_DEVICE) {
- VPRINTK("device 0x%X\n", tf->device);
+ if (tf->flags & ATA_TFLAG_DEVICE)
blob = tf->device;
- } else {
- blob = 0;
- }
- DPRINTK("ata%u: cmd 0x%X\n", ap->print_id, tf->command);
blob |= (tf->command << 8);
__raw_writew(blob, base + 6);
-
ata_wait_idle(ap);
}
struct octeon_cf_port *cf_port;
cf_port = ap->private_data;
- DPRINTK("ENTER\n");
/* issue r/w command */
qc->cursg = qc->sg;
cf_port->dma_finished = 0;
ap->ops->sff_exec_command(ap, &qc->tf);
- DPRINTK("EXIT\n");
}
/**
if (!sg_is_last(qc->cursg)) {
qc->cursg = sg_next(qc->cursg);
handled = 1;
+ trace_ata_bmdma_start(ap, &qc->tf, qc->tag);
octeon_cf_dma_start(qc);
continue;
} else {
case ATA_PROT_DMA:
WARN_ON(qc->tf.flags & ATA_TFLAG_POLLING);
+ trace_ata_tf_load(ap, &qc->tf);
ap->ops->sff_tf_load(ap, &qc->tf); /* load tf registers */
+ trace_ata_bmdma_setup(ap, &qc->tf, qc->tag);
octeon_cf_dma_setup(qc); /* set up dma */
+ trace_ata_bmdma_start(ap, &qc->tf, qc->tag);
octeon_cf_dma_start(qc); /* initiate dma */
ap->hsm_task_state = HSM_ST_LAST;
break;
static void pdc202xx_exec_command(struct ata_port *ap,
const struct ata_taskfile *tf)
{
- DPRINTK("ata%u: cmd 0x%X\n", ap->print_id, tf->command);
-
iowrite8(tf->command, ap->ioaddr.command_addr);
ndelay(400);
}
static void sil680_sff_exec_command(struct ata_port *ap,
const struct ata_taskfile *tf)
{
- DPRINTK("ata%u: cmd 0x%X\n", ap->print_id, tf->command);
iowrite8(tf->command, ap->ioaddr.command_addr);
ioread8(ap->ioaddr.bmdma_addr + ATA_DMA_CMD);
}
#include <linux/phy/phy.h>
#include <linux/libata.h>
#include <linux/slab.h>
+#include <trace/events/libata.h>
#include "libata.h"
}
}
+#ifdef DEBUG_NCQ
static const char *get_dma_dir_descript(int dma_dir)
{
switch ((enum dma_data_direction)dma_dir) {
return "none";
}
}
-
-static void sata_dwc_tf_dump(struct ata_port *ap, struct ata_taskfile *tf)
-{
- dev_vdbg(ap->dev,
- "taskfile cmd: 0x%02x protocol: %s flags: 0x%lx device: %x\n",
- tf->command, get_prot_descript(tf->protocol), tf->flags,
- tf->device);
- dev_vdbg(ap->dev,
- "feature: 0x%02x nsect: 0x%x lbal: 0x%x lbam: 0x%x lbah: 0x%x\n",
- tf->feature, tf->nsect, tf->lbal, tf->lbam, tf->lbah);
- dev_vdbg(ap->dev,
- "hob_feature: 0x%02x hob_nsect: 0x%x hob_lbal: 0x%x hob_lbam: 0x%x hob_lbah: 0x%x\n",
- tf->hob_feature, tf->hob_nsect, tf->hob_lbal, tf->hob_lbam,
- tf->hob_lbah);
-}
+#endif
static void dma_dwc_xfer_done(void *hsdev_instance)
{
* active tag. It is the tag that matches the command about to
* be completed.
*/
+ trace_ata_bmdma_start(ap, &qc->tf, tag);
qc->ap->link.active_tag = tag;
sata_dwc_bmdma_start_by_tag(qc, tag);
{
struct sata_dwc_device_port *hsdevp = HSDEVP_FROM_AP(ap);
- dev_dbg(ap->dev, "%s cmd(0x%02x): %s tag=%d\n", __func__, tf->command,
- ata_get_cmd_descript(tf->command), tag);
-
hsdevp->cmd_issued[tag] = cmd_issued;
/*
{
u8 tag = qc->hw_tag;
- if (ata_is_ncq(qc->tf.protocol)) {
- dev_dbg(qc->ap->dev, "%s: ap->link.sactive=0x%08x tag=%d\n",
- __func__, qc->ap->link.sactive, tag);
- } else {
+ if (!ata_is_ncq(qc->tf.protocol))
tag = 0;
- }
+
sata_dwc_bmdma_setup_by_tag(qc, tag);
}
start_dma = 0;
}
- dev_dbg(ap->dev,
- "%s qc=%p tag: %x cmd: 0x%02x dma_dir: %s start_dma? %x\n",
- __func__, qc, tag, qc->tf.command,
- get_dma_dir_descript(qc->dma_dir), start_dma);
- sata_dwc_tf_dump(ap, &qc->tf);
-
if (start_dma) {
sata_dwc_scr_read(&ap->link, SCR_ERROR, ®);
if (reg & SATA_DWC_SERROR_ERR_BITS) {
{
u8 tag = qc->hw_tag;
- if (ata_is_ncq(qc->tf.protocol)) {
- dev_dbg(qc->ap->dev, "%s: ap->link.sactive=0x%08x tag=%d\n",
- __func__, qc->ap->link.sactive, tag);
- } else {
+ if (!ata_is_ncq(qc->tf.protocol))
tag = 0;
- }
- dev_dbg(qc->ap->dev, "%s\n", __func__);
+
sata_dwc_bmdma_start_by_tag(qc, tag);
}
struct ata_port *ap = qc->ap;
struct sata_dwc_device_port *hsdevp = HSDEVP_FROM_AP(ap);
-#ifdef DEBUG_NCQ
- if (qc->hw_tag > 0 || ap->link.sactive > 1)
- dev_info(ap->dev,
- "%s ap id=%d cmd(0x%02x)=%s qc tag=%d prot=%s ap active_tag=0x%08x ap sactive=0x%08x\n",
- __func__, ap->print_id, qc->tf.command,
- ata_get_cmd_descript(qc->tf.command),
- qc->hw_tag, get_prot_descript(qc->tf.protocol),
- ap->link.active_tag, ap->link.sactive);
-#endif
-
if (!ata_is_ncq(qc->tf.protocol))
tag = 0;
sactive |= (0x00000001 << tag);
sata_dwc_scr_write(&ap->link, SCR_ACTIVE, sactive);
- dev_dbg(qc->ap->dev,
- "%s: tag=%d ap->link.sactive = 0x%08x sactive=0x%08x\n",
- __func__, tag, qc->ap->link.sactive, sactive);
-
+ trace_ata_tf_load(ap, &qc->tf);
ap->ops->sff_tf_load(ap, &qc->tf);
+ trace_ata_exec_command(ap, &qc->tf, tag);
sata_dwc_exec_command_by_tag(ap, &qc->tf, tag,
SATA_DWC_CMD_ISSUED_PEND);
} else {
#include <scsi/scsi_host.h>
#include <scsi/scsi_device.h>
#include <linux/libata.h>
+#include <trace/events/libata.h>
#define DRV_NAME "sata_nv"
#define DRV_VERSION "3.5"
writew(qc->hw_tag, mmio + NV_ADMA_APPEND);
- DPRINTK("Issued tag %u\n", qc->hw_tag);
-
return 0;
}
if (qc == NULL)
return 0;
- DPRINTK("Enter\n");
-
writel((1 << qc->hw_tag), pp->sactive_block);
pp->last_issue_tag = qc->hw_tag;
pp->dhfis_bits &= ~(1 << qc->hw_tag);
pp->dmafis_bits &= ~(1 << qc->hw_tag);
pp->qc_active |= (0x1 << qc->hw_tag);
+ trace_ata_tf_load(ap, &qc->tf);
ap->ops->sff_tf_load(ap, &qc->tf); /* load tf registers */
+ trace_ata_exec_command(ap, &qc->tf, qc->hw_tag);
ap->ops->sff_exec_command(ap, &qc->tf);
- DPRINTK("Issued tag %u\n", qc->hw_tag);
-
return 0;
}
if (qc->tf.protocol != ATA_PROT_NCQ)
return ata_bmdma_qc_issue(qc);
- DPRINTK("Enter\n");
-
if (!pp->qc_active)
nv_swncq_issue_atacmd(ap, qc);
else
u8 lack_dhfis = 0;
host_stat = ap->ops->bmdma_status(ap);
+ trace_ata_bmdma_status(ap, host_stat);
if (unlikely(host_stat & ATA_DMA_ERR)) {
/* error when transferring data to/from memory */
ata_ehi_clear_desc(ehi);
static void sata_rcar_exec_command(struct ata_port *ap,
const struct ata_taskfile *tf)
{
- DPRINTK("ata%u: cmd 0x%X\n", ap->print_id, tf->command);
-
iowrite32(tf->command, ap->ioaddr.command_addr);
ata_sff_pause(ap);
}
const char *libata_trace_parse_status(struct trace_seq*, unsigned char);
#define __parse_status(s) libata_trace_parse_status(p, s)
+const char *libata_trace_parse_host_stat(struct trace_seq *, unsigned char);
+#define __parse_host_stat(s) libata_trace_parse_host_stat(p, s)
+
const char *libata_trace_parse_eh_action(struct trace_seq *, unsigned int);
#define __parse_eh_action(a) libata_trace_parse_eh_action(p, a)
TP_PROTO(struct ata_queued_cmd *qc),
TP_ARGS(qc));
+TRACE_EVENT(ata_tf_load,
+
+ TP_PROTO(struct ata_port *ap, const struct ata_taskfile *tf),
+
+ TP_ARGS(ap, tf),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, ata_port )
+ __field( unsigned char, cmd )
+ __field( unsigned char, dev )
+ __field( unsigned char, lbal )
+ __field( unsigned char, lbam )
+ __field( unsigned char, lbah )
+ __field( unsigned char, nsect )
+ __field( unsigned char, feature )
+ __field( unsigned char, hob_lbal )
+ __field( unsigned char, hob_lbam )
+ __field( unsigned char, hob_lbah )
+ __field( unsigned char, hob_nsect )
+ __field( unsigned char, hob_feature )
+ __field( unsigned char, proto )
+ ),
+
+ TP_fast_assign(
+ __entry->ata_port = ap->print_id;
+ __entry->proto = tf->protocol;
+ __entry->cmd = tf->command;
+ __entry->dev = tf->device;
+ __entry->lbal = tf->lbal;
+ __entry->lbam = tf->lbam;
+ __entry->lbah = tf->lbah;
+ __entry->hob_lbal = tf->hob_lbal;
+ __entry->hob_lbam = tf->hob_lbam;
+ __entry->hob_lbah = tf->hob_lbah;
+ __entry->feature = tf->feature;
+ __entry->hob_feature = tf->hob_feature;
+ __entry->nsect = tf->nsect;
+ __entry->hob_nsect = tf->hob_nsect;
+ ),
+
+ TP_printk("ata_port=%u proto=%s cmd=%s%s " \
+ " tf=(%02x/%02x:%02x:%02x:%02x:%02x/%02x:%02x:%02x:%02x:%02x/%02x)",
+ __entry->ata_port,
+ show_protocol_name(__entry->proto),
+ show_opcode_name(__entry->cmd),
+ __parse_subcmd(__entry->cmd, __entry->feature, __entry->hob_nsect),
+ __entry->cmd, __entry->feature, __entry->nsect,
+ __entry->lbal, __entry->lbam, __entry->lbah,
+ __entry->hob_feature, __entry->hob_nsect,
+ __entry->hob_lbal, __entry->hob_lbam, __entry->hob_lbah,
+ __entry->dev)
+);
+
+DECLARE_EVENT_CLASS(ata_exec_command_template,
+
+ TP_PROTO(struct ata_port *ap, const struct ata_taskfile *tf, unsigned int tag),
+
+ TP_ARGS(ap, tf, tag),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, ata_port )
+ __field( unsigned int, tag )
+ __field( unsigned char, cmd )
+ __field( unsigned char, feature )
+ __field( unsigned char, hob_nsect )
+ __field( unsigned char, proto )
+ ),
+
+ TP_fast_assign(
+ __entry->ata_port = ap->print_id;
+ __entry->tag = tag;
+ __entry->proto = tf->protocol;
+ __entry->cmd = tf->command;
+ __entry->feature = tf->feature;
+ __entry->hob_nsect = tf->hob_nsect;
+ ),
+
+ TP_printk("ata_port=%u tag=%d proto=%s cmd=%s%s",
+ __entry->ata_port, __entry->tag,
+ show_protocol_name(__entry->proto),
+ show_opcode_name(__entry->cmd),
+ __parse_subcmd(__entry->cmd, __entry->feature, __entry->hob_nsect))
+);
+
+DEFINE_EVENT(ata_exec_command_template, ata_exec_command,
+ TP_PROTO(struct ata_port *ap, const struct ata_taskfile *tf, unsigned int tag),
+ TP_ARGS(ap, tf, tag));
+
+DEFINE_EVENT(ata_exec_command_template, ata_bmdma_setup,
+ TP_PROTO(struct ata_port *ap, const struct ata_taskfile *tf, unsigned int tag),
+ TP_ARGS(ap, tf, tag));
+
+DEFINE_EVENT(ata_exec_command_template, ata_bmdma_start,
+ TP_PROTO(struct ata_port *ap, const struct ata_taskfile *tf, unsigned int tag),
+ TP_ARGS(ap, tf, tag));
+
+DEFINE_EVENT(ata_exec_command_template, ata_bmdma_stop,
+ TP_PROTO(struct ata_port *ap, const struct ata_taskfile *tf, unsigned int tag),
+ TP_ARGS(ap, tf, tag));
+
+TRACE_EVENT(ata_bmdma_status,
+
+ TP_PROTO(struct ata_port *ap, unsigned int host_stat),
+
+ TP_ARGS(ap, host_stat),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, ata_port )
+ __field( unsigned int, tag )
+ __field( unsigned char, host_stat )
+ ),
+
+ TP_fast_assign(
+ __entry->ata_port = ap->print_id;
+ __entry->host_stat = host_stat;
+ ),
+
+ TP_printk("ata_port=%u host_stat=%s",
+ __entry->ata_port,
+ __parse_host_stat(__entry->host_stat))
+);
+
TRACE_EVENT(ata_eh_link_autopsy,
TP_PROTO(struct ata_device *dev, unsigned int eh_action, unsigned int eh_err_mask),
projects / platform / kernel / linux-rpi.git / commitdiff