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path: root/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c18
1 files changed, 18 insertions, 0 deletions
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)
{