[PATCH] Alpha - cpu mask fix-ups broke SMP DP264 machines in 2.6.8

[Ali Saidi]

The cpu mask fix-ups in 2.6.8 broke SMP kernels booting on a DP264. 
Instead of not setting the DIM for cpus that did not exit, the patch 
inadvertently doesn't set the DIM for CPUs that do exist. Thus no 
device interrupts get to the cpu.

Thanks,

Ali


--- linux-2.6.8.1.orig/arch/alpha/kernel/sys_dp264.c    2004-10-08 
15:51:26.000000000 -0400
+++ linux-2.6.8.1.fix/arch/alpha/kernel/sys_dp264.c     2004-10-08 
15:58:07.000000000 -0400
@@ -71,10 +71,10 @@
        dim1 = &cchip->dim1.csr;
        dim2 = &cchip->dim2.csr;
        dim3 = &cchip->dim3.csr;
-       if (cpu_possible(0)) dim0 = &dummy;
-       if (cpu_possible(1)) dim1 = &dummy;
-       if (cpu_possible(2)) dim2 = &dummy;
-       if (cpu_possible(3)) dim3 = &dummy;
+       if (!cpu_possible(0)) dim0 = &dummy;
+       if (!cpu_possible(1)) dim1 = &dummy;
+       if (!cpu_possible(2)) dim2 = &dummy;
+       if (!cpu_possible(3)) dim3 = &dummy;

        *dim0 = mask0;
        *dim1 = mask1;

-
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