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drm/nouveau/therm: ack any pending IRQ at init 

This is safe because ptherm hasn't been configured yet and will be a
little further down the initialization path. Ptherm should be safe
regarding to runtime reconfiguration.

v2:
  - do not limit this patch to nv84-a3 and make it nv84+

v3:
  - move the ack to fini()
  - disable IRQs on fini()
  - silently ignore un-requested IRQs

Signed-off-by: Martin Peres <martin.peres@labri.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Martin Peres 2013-09-09 00:43:27 +02:00 committed by Ben Skeggs
parent be0dd4ddef
commit b449a43f56
4 changed files with 18 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/gpu/drm/nouveau/core/subdev/therm/nv84.c
View File

@ -126,7 +126,7 @@ nv84_therm_intr(struct nouveau_subdev *subdev)
spin_lock_irqsave(&priv->sensor.alarm_program_lock, flags);
intr = nv_rd32(therm, 0x20100);
intr = nv_rd32(therm, 0x20100) & 0x3ff;
/* THRS_4: downclock */
if (intr & 0x002) {
@ -209,6 +209,19 @@ nv84_therm_ctor(struct nouveau_object *parent,
return nouveau_therm_preinit(&priv->base.base);
}
int
nv84_therm_fini(struct nouveau_object *object, bool suspend)
{
/* Disable PTherm IRQs */
nv_wr32(object, 0x20000, 0x00000000);
/* ACK all PTherm IRQs */
nv_wr32(object, 0x20100, 0xffffffff);
nv_wr32(object, 0x1100, 0x10000); /* PBUS */
return _nouveau_therm_fini(object, suspend);
}
struct nouveau_oclass
nv84_therm_oclass = {
.handle = NV_SUBDEV(THERM, 0x84),
@ -216,6 +229,6 @@ nv84_therm_oclass = {
.ctor = nv84_therm_ctor,
.dtor = _nouveau_therm_dtor,
.init = _nouveau_therm_init,
.fini = _nouveau_therm_fini,
.fini = nv84_therm_fini,
},
};

2
drivers/gpu/drm/nouveau/core/subdev/therm/nva3.c
View File

@ -94,6 +94,6 @@ nva3_therm_oclass = {
.ctor = nva3_therm_ctor,
.dtor = _nouveau_therm_dtor,
.init = nva3_therm_init,
.fini = _nouveau_therm_fini,
.fini = nv84_therm_fini,
},
};

2
drivers/gpu/drm/nouveau/core/subdev/therm/nvd0.c
View File

@ -148,6 +148,6 @@ nvd0_therm_oclass = {
.ctor = nvd0_therm_ctor,
.dtor = _nouveau_therm_dtor,
.init = nvd0_therm_init,
.fini = _nouveau_therm_fini,
.fini = nv84_therm_fini,
},
};

1
drivers/gpu/drm/nouveau/core/subdev/therm/priv.h
View File

@ -144,6 +144,7 @@ int nv50_fan_pwm_get(struct nouveau_therm *, int, u32 *, u32 *);
int nv50_fan_pwm_set(struct nouveau_therm *, int, u32, u32);
int nv50_fan_pwm_clock(struct nouveau_therm *);
int nv84_temp_get(struct nouveau_therm *therm);
int nv84_therm_fini(struct nouveau_object *object, bool suspend);
int nva3_therm_fan_sense(struct nouveau_therm *);