disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/gpu/drm/nouveau/nvkm/engine/dma/usernv04.c
..
..
@@ -122,6 +122,7 @@
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 		break;
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 	case NV_MEM_ACCESS_WO:
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 		dmaobj->flags0 |= 0x00008000;
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+		fallthrough;
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 	case NV_MEM_ACCESS_RW:
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 		dmaobj->flags2 |= 0x00000002;
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 		break;