disable cpu isolcpus

hc

2023-12-09 958e46acc8e900e8569dd467c1af9b8d2d019394

 kernel/arch/powerpc/include/asm/page_32.h
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@@ -22,7 +22,8 @@
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 #define PTE_FLAGS_OFFSET	0
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 #endif
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-#ifdef CONFIG_PPC_256K_PAGES
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+#if defined(CONFIG_PPC_256K_PAGES) || \
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+    (defined(CONFIG_PPC_8xx) && defined(CONFIG_PPC_16K_PAGES))
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 #define PTE_SHIFT	(PAGE_SHIFT - PTE_T_LOG2 - 2)	/* 1/4 of a page */
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 #else
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 #define PTE_SHIFT	(PAGE_SHIFT - PTE_T_LOG2)	/* full page */
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@@ -39,6 +40,8 @@
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 typedef unsigned long pte_basic_t;
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 #endif
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+#include <asm/bug.h>
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+
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 /*
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  * Clear page using the dcbz instruction, which doesn't cause any
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  * memory traffic (except to write out any cache lines which get
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@@ -48,6 +51,8 @@
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 {
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 	unsigned int i;
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+	WARN_ON((unsigned long)addr & (L1_CACHE_BYTES - 1));
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+
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 	for (i = 0; i < PAGE_SIZE / L1_CACHE_BYTES; i++, addr += L1_CACHE_BYTES)
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 		dcbz(addr);
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 }