The patch titled
ata ahci ALPM: Store interrupt value
has been added to the -mm tree. Its filename is
ata-ahci-alpm-store-interrupt-value.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: ata ahci ALPM: Store interrupt value
From: Kristen Carlson Accardi <kristen.c.accardi@xxxxxxxxx>
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@xxxxxxxxx>
Cc: James Bottomley <James.Bottomley@xxxxxxxxxxxx>
Cc: Jeff Garzik <jeff@xxxxxxxxxx>
Cc: Tejun Heo <htejun@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/ata/ahci.c | 10 +++++++++-
1 files changed, 9 insertions(+), 1 deletion(-)
diff -puN drivers/ata/ahci.c~ata-ahci-alpm-store-interrupt-value drivers/ata/ahci.c
--- a/drivers/ata/ahci.c~ata-ahci-alpm-store-interrupt-value
+++ a/drivers/ata/ahci.c
@@ -213,6 +213,7 @@ 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 u32 ahci_scr_read (struct ata_port *ap, unsigned int sc_reg);
@@ -1486,6 +1487,7 @@ static void ahci_thaw(struct ata_port *a
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);
@@ -1493,7 +1495,7 @@ static void ahci_thaw(struct ata_port *a
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)
@@ -1649,6 +1651,12 @@ static int ahci_port_start(struct ata_po
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 */
_
Patches currently in -mm which might be from kristen.c.accardi@xxxxxxxxx are
git-acpi.patch
libata-check-for-an-support.patch
scsi-expose-an-to-user-space.patch
libata-expose-an-to-user-space.patch
scsi-save-disk-in-scsi_device.patch
libata-send-event-when-an-received.patch
ata-ahci-alpm-store-interrupt-value.patch
ata-ahci-alpm-expose-power-management-policy-option-to-users.patch
ata-ahci-alpm-enable-link-power-management-for-ata-drivers.patch
ata-ahci-alpm-enable-aggressive-link-power-management-for-ahci-controllers.patch
cpci_hotplug-convert-to-use-the-kthread-api.patch
-
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