disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/gpu/drm/nouveau/nvkm/engine/device/user.c
..
..
@@ -91,7 +91,7 @@
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 	case ENGINE_A(MSENC ); break;
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 	case ENGINE_A(VIC   ); break;
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 	case ENGINE_A(SEC2  ); break;
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-	case ENGINE_A(NVDEC ); break;
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+	case ENGINE_B(NVDEC ); break;
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 	case ENGINE_B(NVENC ); break;
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 	default:
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 		args->mthd = NV_DEVICE_INFO_INVALID;
..
..
@@ -175,6 +175,7 @@
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 	case GM100: args->v0.family = NV_DEVICE_INFO_V0_MAXWELL; break;
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 	case GP100: args->v0.family = NV_DEVICE_INFO_V0_PASCAL; break;
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 	case GV100: args->v0.family = NV_DEVICE_INFO_V0_VOLTA; break;
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+	case TU100: args->v0.family = NV_DEVICE_INFO_V0_TURING; break;
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 	default:
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 		args->v0.family = 0;
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 		break;
..
..
@@ -364,16 +365,15 @@
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 	}
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 	if (!sclass) {
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-		switch (index) {
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-		case 0: sclass = &nvkm_control_oclass; break;
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-		case 1:
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-			if (!device->mmu)
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-				return -EINVAL;
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+		if (index-- == 0)
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+			sclass = &nvkm_control_oclass;
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+		else if (device->mmu && index-- == 0)
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 			sclass = &device->mmu->user;
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-			break;
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-		default:
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+		else if (device->fault && index-- == 0)
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+			sclass = &device->fault->user;
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+		else
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 			return -EINVAL;
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-		}
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+
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 		oclass->base = sclass->base;
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 	}
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