Date: Mon, 28 Sep 2009 08:29:24 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-acpi@freebsd.org Cc: current@freebsd.org Subject: Re: [LOR] ACPI related on 9-current Message-ID: <200909280829.25171.jhb@freebsd.org> In-Reply-To: <20090926.234136.241898347.haro@h4.dion.ne.jp> References: <20090926.234136.241898347.haro@h4.dion.ne.jp>
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On Saturday 26 September 2009 10:41:36 am Munehiro Matsuda wrote:
> Hi all,
>
> I've got two LORs related to ACPI on 9-current system from few days old
world.
> The second one with "ACPI AC adapter", may relate to using sysutils/xbattbar
> from ports.
> If you need more info, please let me know.
Try this patch. It avoids holding the ACPI adapter lock while calling all the
power manager eventhandler routines, and it splits the ACPI video lock up
into two locks: one to manage the "bus" of video output devices, and one that
serves as the softc lock for each of the video output devices.
Index: dev/acpica/acpi_acad.c
===================================================================
--- dev/acpica/acpi_acad.c (revision 197430)
+++ dev/acpica/acpi_acad.c (working copy)
@@ -109,13 +109,14 @@
ACPI_SERIAL_BEGIN(acad);
if (newstatus != -1 && sc->status != newstatus) {
sc->status = newstatus;
+ ACPI_SERIAL_END(acad);
power_profile_set_state(newstatus ? POWER_PROFILE_PERFORMANCE :
POWER_PROFILE_ECONOMY);
ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
"%s Line\n", newstatus ? "On" : "Off");
acpi_UserNotify("ACAD", h, newstatus);
- }
- ACPI_SERIAL_END(acad);
+ } else
+ ACPI_SERIAL_END(acad);
}
static void
Index: dev/acpica/acpi_video.c
===================================================================
--- dev/acpica/acpi_video.c (revision 197438)
+++ dev/acpica/acpi_video.c (working copy)
@@ -170,7 +170,13 @@
static struct acpi_video_output_queue crt_units, tv_units,
ext_units, lcd_units, other_units;
+/*
+ * The 'video' lock protects the hierarchy of video output devices
+ * (the video "bus"). The 'video_output' lock protects per-output
+ * data is equivalent to a softc lock for each video output.
+ */
ACPI_SERIAL_DECL(video, "ACPI video");
+ACPI_SERIAL_DECL(video_output, "ACPI video output");
MALLOC_DEFINE(M_ACPIVIDEO, "acpivideo", "ACPI video extension");
static int
@@ -236,12 +242,14 @@
acpi_sc = devclass_get_softc(devclass_find("acpi"), 0);
if (acpi_sc == NULL)
return (ENXIO);
+ ACPI_SERIAL_BEGIN(video);
if (acpi_video_sysctl_tree == NULL) {
acpi_video_sysctl_tree = SYSCTL_ADD_NODE(&acpi_video_sysctl_ctx,
SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree),
OID_AUTO, "video", CTLFLAG_RD, 0,
"video extension control");
}
+ ACPI_SERIAL_END(video);
sc->device = dev;
sc->handle = acpi_get_handle(dev);
@@ -316,6 +324,7 @@
dss_p = 0;
lasthand = NULL;
ACPI_SERIAL_BEGIN(video);
+ ACPI_SERIAL_BEGIN(video_output);
STAILQ_FOREACH(vo, &sc->vid_outputs, vo_next) {
dss = vo_get_graphics_state(vo->handle);
dcs = vo_get_device_status(vo->handle);
@@ -331,6 +340,7 @@
}
if (lasthand != NULL)
vo_set_device_state(lasthand, dss_p|DSS_COMMIT);
+ ACPI_SERIAL_END(video_output);
ACPI_SERIAL_END(video);
break;
case VID_NOTIFY_REPROBE:
@@ -367,12 +377,14 @@
return;
ACPI_SERIAL_BEGIN(video);
+ ACPI_SERIAL_BEGIN(video_output);
STAILQ_FOREACH(vo, &sc->vid_outputs, vo_next) {
if (vo->vo_levels != NULL && vo->vo_brightness == -1)
vo_set_brightness(vo->handle,
state == POWER_PROFILE_ECONOMY ?
vo->vo_economy : vo->vo_fullpower);
}
+ ACPI_SERIAL_END(video_output);
ACPI_SERIAL_END(video);
}
@@ -550,7 +562,7 @@
acpi_video_vo_bind(struct acpi_video_output *vo, ACPI_HANDLE handle)
{
- ACPI_SERIAL_ASSERT(video);
+ ACPI_SERIAL_BEGIN(video_output);
if (vo->vo_levels != NULL)
AcpiOsFree(vo->vo_levels);
vo->handle = handle;
@@ -565,6 +577,7 @@
/* XXX - see above. */
vo->vo_economy = vo->vo_levels[BCL_ECONOMY];
}
+ ACPI_SERIAL_END(video_output);
}
static void
@@ -605,7 +618,7 @@
{
int i;
- ACPI_SERIAL_ASSERT(video);
+ ACPI_SERIAL_ASSERT(video_output);
if (vo->vo_levels == NULL)
return (ENODEV);
for (i = 0; i < vo->vo_numlevels; i++)
@@ -624,7 +637,7 @@
vo = (struct acpi_video_output *)arg1;
if (vo->handle == NULL)
return (ENXIO);
- ACPI_SERIAL_BEGIN(video);
+ ACPI_SERIAL_BEGIN(video_output);
state = (vo_get_device_status(vo->handle) & DCS_ACTIVE) ? 1 : 0;
err = sysctl_handle_int(oidp, &state, 0, req);
if (err != 0 || req->newptr == NULL)
@@ -632,7 +645,7 @@
vo_set_device_state(vo->handle,
DSS_COMMIT | (state ? DSS_ACTIVE : DSS_INACTIVE));
out:
- ACPI_SERIAL_END(video);
+ ACPI_SERIAL_END(video_output);
return (err);
}
@@ -644,7 +657,7 @@
int level, preset, err;
vo = (struct acpi_video_output *)arg1;
- ACPI_SERIAL_BEGIN(video);
+ ACPI_SERIAL_BEGIN(video_output);
if (vo->handle == NULL) {
err = ENXIO;
goto out;
@@ -674,7 +687,7 @@
vo_set_brightness(vo->handle, (level == -1) ? preset : level);
out:
- ACPI_SERIAL_END(video);
+ ACPI_SERIAL_END(video_output);
return (err);
}
@@ -686,7 +699,7 @@
err = 0;
vo = (struct acpi_video_output *)arg1;
- ACPI_SERIAL_BEGIN(video);
+ ACPI_SERIAL_BEGIN(video_output);
if (vo->handle == NULL) {
err = ENXIO;
goto out;
@@ -717,7 +730,7 @@
*preset = level;
out:
- ACPI_SERIAL_END(video);
+ ACPI_SERIAL_END(video_output);
return (err);
}
@@ -729,7 +742,7 @@
int err;
vo = (struct acpi_video_output *)arg1;
- ACPI_SERIAL_BEGIN(video);
+ ACPI_SERIAL_BEGIN(video_output);
if (vo->vo_levels == NULL) {
err = ENODEV;
goto out;
@@ -742,7 +755,7 @@
vo->vo_numlevels * sizeof(*vo->vo_levels), req);
out:
- ACPI_SERIAL_END(video);
+ ACPI_SERIAL_END(video_output);
return (err);
}
@@ -892,6 +905,7 @@
{
ACPI_STATUS status;
+ ACPI_SERIAL_ASSERT(video_output);
status = acpi_SetInteger(handle, "_BCM", level);
if (ACPI_FAILURE(status))
printf("can't evaluate %s._BCM - %s\n",
@@ -904,6 +918,7 @@
UINT32 dcs;
ACPI_STATUS status;
+ ACPI_SERIAL_ASSERT(video_output);
dcs = 0;
status = acpi_GetInteger(handle, "_DCS", &dcs);
if (ACPI_FAILURE(status))
@@ -933,6 +948,7 @@
{
ACPI_STATUS status;
+ ACPI_SERIAL_ASSERT(video_output);
status = acpi_SetInteger(handle, "_DSS", state);
if (ACPI_FAILURE(status))
printf("can't evaluate %s._DSS - %s\n",
--
John Baldwin
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