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authorLinus Torvalds <torvalds@linux-foundation.org>2008-08-22 08:22:33 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-22 08:22:33 -0700
commita7b354e868bc2f887dfb0a418aa7d96df1afc399 (patch)
tree7f07d314a3a0177daab9b54d78ded0c4f9e412e0 /include
parentf7edd5fbde8af44fa06218f56e0f648fc7a527c8 (diff)
parent4ef281853474389fea952e9e59650e599ecf2d62 (diff)
downloadop-kernel-dev-a7b354e868bc2f887dfb0a418aa7d96df1afc399.zip
op-kernel-dev-a7b354e868bc2f887dfb0a418aa7d96df1afc399.tar.gz
Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: [libata] pata_it821x: fix warning libata: Fix a large collection of DMA mode mismatches ahci: sis controllers actually can do PMP pata_via: clean up recent tf_load changes libata: restore SControl on detach libata: use ata_link_printk() when printing SError libata: always do follow-up SRST if hardreset returned -EAGAIN libata: fix EH action overwriting in ata_eh_reset() sata_mv: add the Gen IIE flag to the SoC devices. ata_piix: IDE Mode SATA patch for Intel Ibex Peak DeviceIDs ahci: RAID mode SATA patch for Intel Ibex Peak DeviceIDs sata_mv: don't issue two DMA commands concurrently libata: implement no[hs]rst force params
Diffstat (limited to 'include')
-rw-r--r--include/linux/libata.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 06b8033..225bfc5 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -163,6 +163,7 @@ enum {
ATA_DEV_NONE = 9, /* no device */
/* struct ata_link flags */
+ ATA_LFLAG_NO_HRST = (1 << 1), /* avoid hardreset */
ATA_LFLAG_NO_SRST = (1 << 2), /* avoid softreset */
ATA_LFLAG_ASSUME_ATA = (1 << 3), /* assume ATA class */
ATA_LFLAG_ASSUME_SEMB = (1 << 4), /* assume SEMB class */
@@ -646,6 +647,7 @@ struct ata_link {
unsigned int flags; /* ATA_LFLAG_xxx */
+ u32 saved_scontrol; /* SControl on probe */
unsigned int hw_sata_spd_limit;
unsigned int sata_spd_limit;
unsigned int sata_spd; /* current SATA PHY speed */
@@ -1427,6 +1429,28 @@ static inline unsigned long ata_deadline(unsigned long from_jiffies,
return from_jiffies + msecs_to_jiffies(timeout_msecs);
}
+/* Don't open code these in drivers as there are traps. Firstly the range may
+ change in future hardware and specs, secondly 0xFF means 'no DMA' but is
+ > UDMA_0. Dyma ddreigiau */
+
+static inline int ata_using_mwdma(struct ata_device *adev)
+{
+ if (adev->dma_mode >= XFER_MW_DMA_0 && adev->dma_mode <= XFER_MW_DMA_4)
+ return 1;
+ return 0;
+}
+
+static inline int ata_using_udma(struct ata_device *adev)
+{
+ if (adev->dma_mode >= XFER_UDMA_0 && adev->dma_mode <= XFER_UDMA_7)
+ return 1;
+ return 0;
+}
+
+static inline int ata_dma_enabled(struct ata_device *adev)
+{
+ return (adev->dma_mode == 0xFF ? 0 : 1);
+}
/**************************************************************************
* PMP - drivers/ata/libata-pmp.c
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