The patch titled
sata sil: Blacklist system that spins off disks during ACPI power off
has been added to the -mm tree. Its filename is
sata-sil-blacklist-system-that-spins-off-disks-during-acpi-power-off.patch
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Subject: sata sil: Blacklist system that spins off disks during ACPI power off
From: Rafael J. Wysocki <rjw@xxxxxxx>
Some notebooks from HP have the problem that their BIOSes attempt to spin
down hard drives before entering ACPI system states S4 and S5. This leads
to a yo-yo effect during system power-off shutdown and the last phase of
hibernation when the disk is first spun down by the kernel and then almost
immediately turned on and off by the BIOS. This, in turn, may result in
shortening the disk's life times.
To prevent this from happening we can blacklist the affected systems using
DMI information.
Blacklist HP nx6325 that uses the sata_sil driver.
Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jeff Garzik <jeff@xxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Tested-by: Maciej Rutecki <maciej.rutecki@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/ata/sata_sil.c | 36 +++++++++++++++++++++++++++++++++++-
1 file changed, 35 insertions(+), 1 deletion(-)
diff -puN drivers/ata/sata_sil.c~sata-sil-blacklist-system-that-spins-off-disks-during-acpi-power-off drivers/ata/sata_sil.c
--- a/drivers/ata/sata_sil.c~sata-sil-blacklist-system-that-spins-off-disks-during-acpi-power-off
+++ a/drivers/ata/sata_sil.c
@@ -695,11 +695,38 @@ static void sil_init_controller(struct a
}
}
+static bool sil_broken_system_poweroff(struct pci_dev *pdev)
+{
+ static const struct dmi_system_id broken_systems[] = {
+ {
+ .ident = "HP Compaq nx6325",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6325"),
+ },
+ /* PCI slot number of the controller */
+ .driver_data = (void *)0x12UL,
+ },
+
+ { } /* terminate list */
+ };
+ const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
+
+ if (dmi) {
+ unsigned long slot = (unsigned long)dmi->driver_data;
+ /* apply the quirk only to on-board controllers */
+ return slot == PCI_SLOT(pdev->devfn);
+ }
+
+ return false;
+}
+
static int sil_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
static int printed_version;
int board_id = ent->driver_data;
- const struct ata_port_info *ppi[] = { &sil_port_info[board_id], NULL };
+ struct ata_port_info pi = sil_port_info[board_id];
+ const struct ata_port_info *ppi[] = { &pi, NULL };
struct ata_host *host;
void __iomem *mmio_base;
int n_ports, rc;
@@ -713,6 +740,13 @@ static int sil_init_one(struct pci_dev *
if (board_id == sil_3114)
n_ports = 4;
+ if (sil_broken_system_poweroff(pdev)) {
+ pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN |
+ ATA_FLAG_NO_HIBERNATE_SPINDOWN;
+ dev_info(&pdev->dev, "quirky BIOS, skipping spindown "
+ "on poweroff and hibernation\n");
+ }
+
host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
if (!host)
return -ENOMEM;
_
Patches currently in -mm which might be from rjw@xxxxxxx are
linux-next.patch
drivers-consolidate-driver_probe_done-loops-into-one-place.patch
drivers-consolidate-driver_probe_done-loops-into-one-place-fix.patch
drivers-consolidate-driver_probe_done-loops-into-one-place-checkpatch-fixes.patch
resume-wait-for-device-probing-to-finish.patch
misc-dell-laptop-should-depend-on-power_supply.patch
hibernation-introduce-system_entering_hibernation.patch
dmi-introduce-dmi_first_match-to-make-the-interface-more-flexible.patch
sata-blacklisting-of-systems-that-spin-off-disks-during-acpi-power-off.patch
sata-ahci-blacklist-system-that-spins-off-disks-during-acpi-power-off.patch
sata-sil-blacklist-system-that-spins-off-disks-during-acpi-power-off.patch
sata-piix-blacklist-system-that-spins-off-disks-during-acpi-power-off.patch
shrink_slab-handle-bad-shrinkers.patch
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