svn commit: r208393 - in head/sys/dev: mvs siis
Alexander Motin
mav at FreeBSD.org
Fri May 21 17:26:17 UTC 2010
Author: mav
Date: Fri May 21 17:26:16 2010
New Revision: 208393
URL: http://svn.freebsd.org/changeset/base/208393
Log:
Improve suspend/resume support. Make sure controller is idle on suspend
and reset it on resume.
Modified:
head/sys/dev/mvs/mvs.c
head/sys/dev/siis/siis.c
Modified: head/sys/dev/mvs/mvs.c
==============================================================================
--- head/sys/dev/mvs/mvs.c Fri May 21 17:17:56 2010 (r208392)
+++ head/sys/dev/mvs/mvs.c Fri May 21 17:26:16 2010 (r208393)
@@ -51,6 +51,8 @@ __FBSDID("$FreeBSD$");
#include <cam/cam_debug.h>
/* local prototypes */
+static int mvs_ch_init(device_t dev);
+static int mvs_ch_deinit(device_t dev);
static int mvs_ch_suspend(device_t dev);
static int mvs_ch_resume(device_t dev);
static void mvs_dmainit(device_t dev);
@@ -133,7 +135,7 @@ mvs_ch_attach(device_t dev)
return (ENXIO);
mvs_dmainit(dev);
mvs_slotsalloc(dev);
- mvs_ch_resume(dev);
+ mvs_ch_init(dev);
mtx_lock(&ch->mtx);
rid = ATA_IRQ_RID;
if (!(ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
@@ -215,7 +217,7 @@ mvs_ch_detach(device_t dev)
bus_teardown_intr(dev, ch->r_irq, ch->ih);
bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
- mvs_ch_suspend(dev);
+ mvs_ch_deinit(dev);
mvs_slotsfree(dev);
mvs_dmafini(dev);
@@ -225,19 +227,7 @@ mvs_ch_detach(device_t dev)
}
static int
-mvs_ch_suspend(device_t dev)
-{
- struct mvs_channel *ch = device_get_softc(dev);
-
- /* Stop EDMA */
- mvs_set_edma_mode(dev, MVS_EDMA_OFF);
- /* Disable port interrupts. */
- ATA_OUTL(ch->r_mem, EDMA_IEM, 0);
- return (0);
-}
-
-static int
-mvs_ch_resume(device_t dev)
+mvs_ch_init(device_t dev)
{
struct mvs_channel *ch = device_get_softc(dev);
uint32_t reg;
@@ -264,6 +254,45 @@ mvs_ch_resume(device_t dev)
return (0);
}
+static int
+mvs_ch_deinit(device_t dev)
+{
+ struct mvs_channel *ch = device_get_softc(dev);
+
+ /* Stop EDMA */
+ mvs_set_edma_mode(dev, MVS_EDMA_OFF);
+ /* Disable port interrupts. */
+ ATA_OUTL(ch->r_mem, EDMA_IEM, 0);
+ return (0);
+}
+
+static int
+mvs_ch_suspend(device_t dev)
+{
+ struct mvs_channel *ch = device_get_softc(dev);
+
+ mtx_lock(&ch->mtx);
+ xpt_freeze_simq(ch->sim, 1);
+ while (ch->oslots)
+ msleep(ch, &ch->mtx, PRIBIO, "mvssusp", hz/100);
+ mvs_ch_deinit(dev);
+ mtx_unlock(&ch->mtx);
+ return (0);
+}
+
+static int
+mvs_ch_resume(device_t dev)
+{
+ struct mvs_channel *ch = device_get_softc(dev);
+
+ mtx_lock(&ch->mtx);
+ mvs_ch_init(dev);
+ mvs_reset(dev);
+ xpt_release_simq(ch->sim, TRUE);
+ mtx_unlock(&ch->mtx);
+ return (0);
+}
+
struct mvs_dc_cb_args {
bus_addr_t maddr;
int error;
Modified: head/sys/dev/siis/siis.c
==============================================================================
--- head/sys/dev/siis/siis.c Fri May 21 17:17:56 2010 (r208392)
+++ head/sys/dev/siis/siis.c Fri May 21 17:26:16 2010 (r208393)
@@ -59,6 +59,8 @@ static int siis_setup_interrupt(device_t
static void siis_intr(void *data);
static int siis_suspend(device_t dev);
static int siis_resume(device_t dev);
+static int siis_ch_init(device_t dev);
+static int siis_ch_deinit(device_t dev);
static int siis_ch_suspend(device_t dev);
static int siis_ch_resume(device_t dev);
static void siis_ch_intr_locked(void *data);
@@ -458,7 +460,7 @@ siis_ch_attach(device_t dev)
return (ENXIO);
siis_dmainit(dev);
siis_slotsalloc(dev);
- siis_ch_resume(dev);
+ siis_ch_init(dev);
mtx_lock(&ch->mtx);
rid = ATA_IRQ_RID;
if (!(ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
@@ -528,7 +530,7 @@ siis_ch_detach(device_t dev)
bus_teardown_intr(dev, ch->r_irq, ch->ih);
bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
- siis_ch_suspend(dev);
+ siis_ch_deinit(dev);
siis_slotsfree(dev);
siis_dmafini(dev);
@@ -538,7 +540,24 @@ siis_ch_detach(device_t dev)
}
static int
-siis_ch_suspend(device_t dev)
+siis_ch_init(device_t dev)
+{
+ struct siis_channel *ch = device_get_softc(dev);
+
+ /* Get port out of reset state. */
+ ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PORT_RESET);
+ ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_32BIT);
+ if (ch->pm_present)
+ ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PME);
+ else
+ ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PME);
+ /* Enable port interrupts */
+ ATA_OUTL(ch->r_mem, SIIS_P_IESET, SIIS_P_IX_ENABLED);
+ return (0);
+}
+
+static int
+siis_ch_deinit(device_t dev)
{
struct siis_channel *ch = device_get_softc(dev);
@@ -548,19 +567,29 @@ siis_ch_suspend(device_t dev)
}
static int
+siis_ch_suspend(device_t dev)
+{
+ struct siis_channel *ch = device_get_softc(dev);
+
+ mtx_lock(&ch->mtx);
+ xpt_freeze_simq(ch->sim, 1);
+ while (ch->oslots)
+ msleep(ch, &ch->mtx, PRIBIO, "siissusp", hz/100);
+ siis_ch_deinit(dev);
+ mtx_unlock(&ch->mtx);
+ return (0);
+}
+
+static int
siis_ch_resume(device_t dev)
{
struct siis_channel *ch = device_get_softc(dev);
- /* Get port out of reset state. */
- ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PORT_RESET);
- ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_32BIT);
- if (ch->pm_present)
- ATA_OUTL(ch->r_mem, SIIS_P_CTLSET, SIIS_P_CTL_PME);
- else
- ATA_OUTL(ch->r_mem, SIIS_P_CTLCLR, SIIS_P_CTL_PME);
- /* Enable port interrupts */
- ATA_OUTL(ch->r_mem, SIIS_P_IESET, SIIS_P_IX_ENABLED);
+ mtx_lock(&ch->mtx);
+ siis_ch_init(dev);
+ siis_reset(dev);
+ xpt_release_simq(ch->sim, TRUE);
+ mtx_unlock(&ch->mtx);
return (0);
}
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