diff options
| author | Hannes Reinecke <hare@suse.de> | 2021-12-21 08:20:31 +0100 |
|---|---|---|
| committer | Damien Le Moal <damien.lemoal@opensource.wdc.com> | 2022-01-05 19:32:51 +0900 |
| commit | c206a389c97c9533971cd05eed69b49f535cc193 (patch) | |
| tree | e4d579cbfa6e9e5072edfc139661a04c0446bc76 /drivers/ata/ata_piix.c | |
| parent | fc914faad67f237528739ec717222a560c97e723 (diff) | |
ata: libata: tracepoints for bus-master DMA
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>
Diffstat (limited to 'drivers/ata/ata_piix.c')
| -rw-r--r-- | drivers/ata/ata_piix.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index eb6bf30bd2e3..27b0d903f91f 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -77,6 +77,7 @@ #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" @@ -816,10 +817,15 @@ static int piix_sidpr_set_lpm(struct ata_link *link, enum ata_lpm_policy policy, 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 |