add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/arch/alpha/kernel/core_apecs.c
..
..
@@ -346,7 +346,8 @@
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 	 * Window 1 is direct access 1GB at 1GB
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 	 * Window 2 is scatter-gather 8MB at 8MB (for isa)
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 	 */
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-	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0);
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+	hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
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+				       SMP_CACHE_BYTES);
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 	hose->sg_pci = NULL;
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 	__direct_map_base = 0x40000000;
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 	__direct_map_size = 0x40000000;