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b1beed40e746a
2020 Mar 24
1
[PATCH v8] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
...hanks to
Bjorn for this idea)
drivers/gpu/drm/nouveau/nouveau_drm.c | 63 +++++++++++++++++++++++++++
drivers/gpu/drm/nouveau/nouveau_drv.h | 2 +
2 files changed, 65 insertions(+)
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 2cd83849600f..b1beed40e746 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -618,6 +618,64 @@ nouveau_drm_device_fini(struct drm_device *dev)
kfree(drm);
}
+/*
+ * On some Intel PCIe bridge controllers doing a
+ * D0 -> D3hot -> D3cold -> D0 sequence causes Nvidi...