diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2019-07-02 14:19:12 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2019-08-23 12:55:33 +1000 |
| commit | 69cbbb7b04ff57c17018b27a86e9c2d758d4366e (patch) | |
| tree | a1bf61a28a0422d0493d81bdfd45dbef13f917fd /drivers/gpu/drm | |
| parent | f0790cda65a1f1a3818db16e95c04c06cb7f2421 (diff) | |
drm/nouveau/therm: don't attempt fan control where PMU is already managing it
There's already a condition in place which attempts to detect this, but
since we've begun to require a PMU subdev even on boards where we don't
load a custom FW, it's become inaccurate.
This will prevent unnecessarily running a periodic fan update thread on
GP100 and newer, where we don't yet override the default PMU FW.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/nvkm/subdev/pmu.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c | 18 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c | 7 |
3 files changed, 23 insertions, 3 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/pmu.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/pmu.h index 24fbcccd93eb..4752006880f3 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/pmu.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/pmu.h @@ -30,6 +30,7 @@ struct nvkm_pmu { int nvkm_pmu_send(struct nvkm_pmu *, u32 reply[2], u32 process, u32 message, u32 data0, u32 data1); void nvkm_pmu_pgob(struct nvkm_pmu *, bool enable); +bool nvkm_pmu_fan_controlled(struct nvkm_device *); int gt215_pmu_new(struct nvkm_device *, int, struct nvkm_pmu **); int gf100_pmu_new(struct nvkm_device *, int, struct nvkm_pmu **); diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c index ce70a193caa7..ea2e11771bca 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c @@ -26,6 +26,24 @@ #include <core/msgqueue.h> #include <subdev/timer.h> +bool +nvkm_pmu_fan_controlled(struct nvkm_device *device) +{ + struct nvkm_pmu *pmu = device->pmu; + + /* Internal PMU FW does not currently control fans in any way, + * allow SW control of fans instead. + */ + if (pmu && pmu->func->code.size) + return false; + + /* Default (board-loaded, or VBIOS PMU/PREOS) PMU FW on Fermi + * and newer automatically control the fan speed, which would + * interfere with SW control. + */ + return (device->chipset >= 0xc0); +} + void nvkm_pmu_pgob(struct nvkm_pmu *pmu, bool enable) { diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c index 07914e36939e..4a4d1e224126 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c @@ -21,9 +21,11 @@ * * Authors: Martin Peres */ -#include <nvkm/core/option.h> #include "priv.h" +#include <core/option.h> +#include <subdev/pmu.h> + int nvkm_therm_temp_get(struct nvkm_therm *therm) { @@ -192,8 +194,7 @@ nvkm_therm_fan_mode(struct nvkm_therm *therm, int mode) /* The default PPWR ucode on fermi interferes with fan management */ if ((mode >= ARRAY_SIZE(name)) || - (mode != NVKM_THERM_CTRL_NONE && device->card_type >= NV_C0 && - !device->pmu)) + (mode != NVKM_THERM_CTRL_NONE && nvkm_pmu_fan_controlled(device))) return -EINVAL; /* do not allow automatic fan management if the thermal sensor is |