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| author | Tejun Heo <tj@kernel.org> | 2008-07-31 17:02:40 +0900 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-09-29 00:22:28 -0400 |
| commit | 82ef04fb4c82542b3eda81cca461f0594ce9cd0b (patch) | |
| tree | e513df5ad8dc9f7400830bfc8786afb6bec90fb6 /drivers/ata/ahci.c | |
| parent | 6ef190cc92e33565accff6a320f0e7d90480bfe7 (diff) | |
| download | op-kernel-dev-82ef04fb4c82542b3eda81cca461f0594ce9cd0b.zip op-kernel-dev-82ef04fb4c82542b3eda81cca461f0594ce9cd0b.tar.gz | |
libata: make SCR access ops per-link
Logically, SCR access ops should take @link; however, there was no
compelling reason to convert all SCR access ops when adding @link
abstraction as there's one-to-one mapping between a port and a non-PMP
link. However, that assumption won't hold anymore with the scheduled
addition of slave link.
Make SCR access ops per-link.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/ahci.c')
| -rw-r--r-- | drivers/ata/ahci.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 2e1a7cb..6acea41 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -267,8 +267,8 @@ struct ahci_port_priv { * per PM slot */ }; -static int ahci_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val); -static int ahci_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val); +static int ahci_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val); +static int ahci_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val); static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent); static unsigned int ahci_qc_issue(struct ata_queued_cmd *qc); static bool ahci_qc_fill_rtf(struct ata_queued_cmd *qc); @@ -820,10 +820,10 @@ static unsigned ahci_scr_offset(struct ata_port *ap, unsigned int sc_reg) return 0; } -static int ahci_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val) +static int ahci_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val) { - void __iomem *port_mmio = ahci_port_base(ap); - int offset = ahci_scr_offset(ap, sc_reg); + void __iomem *port_mmio = ahci_port_base(link->ap); + int offset = ahci_scr_offset(link->ap, sc_reg); if (offset) { *val = readl(port_mmio + offset); @@ -832,10 +832,10 @@ static int ahci_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val) return -EINVAL; } -static int ahci_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val) +static int ahci_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val) { - void __iomem *port_mmio = ahci_port_base(ap); - int offset = ahci_scr_offset(ap, sc_reg); + void __iomem *port_mmio = ahci_port_base(link->ap); + int offset = ahci_scr_offset(link->ap, sc_reg); if (offset) { writel(val, port_mmio + offset); @@ -973,7 +973,7 @@ static void ahci_disable_alpm(struct ata_port *ap) writel(PORT_IRQ_PHYRDY, port_mmio + PORT_IRQ_STAT); /* go ahead and clean out PhyRdy Change from Serror too */ - ahci_scr_write(ap, SCR_ERROR, ((1 << 16) | (1 << 18))); + ahci_scr_write(&ap->link, SCR_ERROR, ((1 << 16) | (1 << 18))); /* * Clear flag to indicate that we should ignore all PhyRdy @@ -1937,8 +1937,8 @@ static void ahci_error_intr(struct ata_port *ap, u32 irq_stat) ata_ehi_push_desc(host_ehi, "irq_stat 0x%08x", irq_stat); /* AHCI needs SError cleared; otherwise, it might lock up */ - ahci_scr_read(ap, SCR_ERROR, &serror); - ahci_scr_write(ap, SCR_ERROR, serror); + ahci_scr_read(&ap->link, SCR_ERROR, &serror); + ahci_scr_write(&ap->link, SCR_ERROR, serror); host_ehi->serror |= serror; /* some controllers set IRQ_IF_ERR on device errors, ignore it */ @@ -2027,7 +2027,7 @@ static void ahci_port_intr(struct ata_port *ap) if ((hpriv->flags & AHCI_HFLAG_NO_HOTPLUG) && (status & PORT_IRQ_PHYRDY)) { status &= ~PORT_IRQ_PHYRDY; - ahci_scr_write(ap, SCR_ERROR, ((1 << 16) | (1 << 18))); + ahci_scr_write(&ap->link, SCR_ERROR, ((1 << 16) | (1 << 18))); } if (unlikely(status & PORT_IRQ_ERROR)) { |
