diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ata/libata-acpi.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index 719e7d237dc..960c6a7caa8 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -22,7 +22,7 @@ static unsigned int ata_acpi_gtf_filter = ATA_ACPI_FILTER_DEFAULT; module_param_named(acpi_gtf_filter, ata_acpi_gtf_filter, int, 0644); -MODULE_PARM_DESC(acpi_gtf_filter, "filter mask for ACPI _GTF commands, set to filter out (0x1=set xfermode, 0x2=lock/freeze lock, 0x4=DIPM)"); +MODULE_PARM_DESC(acpi_gtf_filter, "filter mask for ACPI _GTF commands, set to filter out (0x1=set xfermode, 0x2=lock/freeze lock, 0x4=DIPM, 0x8=FPDMA non-zero offset, 0x10=FPDMA DMA Setup FIS auto-activate)"); #define NO_PORT_MULT 0xffff #define SATA_ADR(root, pmp) (((root) << 16) | (pmp)) @@ -637,12 +637,23 @@ static int ata_acpi_filter_tf(const struct ata_taskfile *tf, return 1; } - if (ata_acpi_gtf_filter & ATA_ACPI_FILTER_DIPM) { + if (tf->command == ATA_CMD_SET_FEATURES && + tf->feature == SETFEATURES_SATA_ENABLE) { /* inhibit enabling DIPM */ - if (tf->command == ATA_CMD_SET_FEATURES && - tf->feature == SETFEATURES_SATA_ENABLE && + if (ata_acpi_gtf_filter & ATA_ACPI_FILTER_DIPM && tf->nsect == SATA_DIPM) return 1; + + /* inhibit FPDMA non-zero offset */ + if (ata_acpi_gtf_filter & ATA_ACPI_FILTER_FPDMA_OFFSET && + (tf->nsect == SATA_FPDMA_OFFSET || + tf->nsect == SATA_FPDMA_IN_ORDER)) + return 1; + + /* inhibit FPDMA auto activation */ + if (ata_acpi_gtf_filter & ATA_ACPI_FILTER_FPDMA_AA && + tf->nsect == SATA_FPDMA_AA) + return 1; } return 0; |