diff options
| author | Kristen Carlson Accardi <kristen.c.accardi@intel.com> | 2007-08-09 14:23:41 -0700 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-10-12 14:55:33 -0400 |
| commit | a738492501eaf6e266acc53a064552b3fcc706b2 (patch) | |
| tree | 8d24a2504530bf175279c294cfcac669ade575c8 | |
| parent | 2f2949680ad89d606db838340b17c30216c0bb0f (diff) | |
ahci: Store interrupt value
Use a stored value for which interrupts to enable. Changing this allows
us to selectively turn off certain interrupts later and have them
stay off.
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
| -rw-r--r-- | drivers/ata/ahci.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index d52b73ab795..baf7d056219 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -175,6 +175,7 @@ enum { AHCI_FLAG_32BIT_ONLY = (1 << 28), /* force 32bit */ AHCI_FLAG_MV_PATA = (1 << 29), /* PATA port */ AHCI_FLAG_NO_MSI = (1 << 30), /* no PCI MSI */ + AHCI_FLAG_NO_HOTPLUG = (1 << 31), /* ignore PxSERR.DIAG.N */ AHCI_FLAG_COMMON = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA | @@ -215,6 +216,7 @@ struct ahci_port_priv { unsigned int ncq_saw_d2h:1; unsigned int ncq_saw_dmas:1; unsigned int ncq_saw_sdb:1; + u32 intr_mask; /* interrupts to enable */ }; static int ahci_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val); @@ -1552,6 +1554,7 @@ static void ahci_thaw(struct ata_port *ap) void __iomem *mmio = ap->host->iomap[AHCI_PCI_BAR]; void __iomem *port_mmio = ahci_port_base(ap); u32 tmp; + struct ahci_port_priv *pp = ap->private_data; /* clear IRQ */ tmp = readl(port_mmio + PORT_IRQ_STAT); @@ -1559,7 +1562,7 @@ static void ahci_thaw(struct ata_port *ap) writel(1 << ap->port_no, mmio + HOST_IRQ_STAT); /* turn IRQ back on */ - writel(DEF_PORT_IRQ, port_mmio + PORT_IRQ_MASK); + writel(pp->intr_mask, port_mmio + PORT_IRQ_MASK); } static void ahci_error_handler(struct ata_port *ap) @@ -1713,6 +1716,12 @@ static int ahci_port_start(struct ata_port *ap) pp->cmd_tbl = mem; pp->cmd_tbl_dma = mem_dma; + /* + * Save off initial list of interrupts to be enabled. + * This could be changed later + */ + pp->intr_mask = DEF_PORT_IRQ; + ap->private_data = pp; /* engage engines, captain */ |