Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a738492501eaf6e266acc53a064552b3fcc706b2
Commit: a738492501eaf6e266acc53a064552b3fcc706b2
Parent: 2f2949680ad89d606db838340b17c30216c0bb0f
Author: Kristen Carlson Accardi <[EMAIL PROTECTED]>
AuthorDate: Thu Aug 9 14:23:41 2007 -0700
Committer: Jeff Garzik <[EMAIL PROTECTED]>
CommitDate: Fri Oct 12 14:55:33 2007 -0400
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 <[EMAIL PROTECTED]>
Signed-off-by: Jeff Garzik <[EMAIL PROTECTED]>
---
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 d52b73a..baf7d05 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 */
-
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