kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgf119.c
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@@ -53,6 +53,8 @@
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 		nvkm_error(subdev, "ch %d fini: %08x\n", user,
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 			   nvkm_rd32(device, 0x610490 + (ctrl * 0x10)));
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 	}
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+
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+	chan->suspend_put = nvkm_rd32(device, 0x640000 + (ctrl * 0x1000));
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 }
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 static int
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@@ -68,7 +70,7 @@
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 	nvkm_wr32(device, 0x610498 + (ctrl * 0x0010), 0x00010000);
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 	nvkm_wr32(device, 0x61049c + (ctrl * 0x0010), 0x00000001);
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 	nvkm_mask(device, 0x610490 + (ctrl * 0x0010), 0x00000010, 0x00000010);
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-	nvkm_wr32(device, 0x640000 + (ctrl * 0x1000), 0x00000000);
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+	nvkm_wr32(device, 0x640000 + (ctrl * 0x1000), chan->suspend_put);
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 	nvkm_wr32(device, 0x610490 + (ctrl * 0x0010), 0x00000013);
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 	/* wait for it to go inactive */