kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/arch/microblaze/mm/init.c
..
..
@@ -49,11 +49,17 @@
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 EXPORT_SYMBOL(min_low_pfn);
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 EXPORT_SYMBOL(max_low_pfn);
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+#ifdef CONFIG_HIGHMEM
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+pte_t *kmap_pte;
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+EXPORT_SYMBOL(kmap_pte);
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+
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 static void __init highmem_init(void)
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 {
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 	pr_debug("%x\n", (u32)PKMAP_BASE);
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 	map_page(PKMAP_BASE, 0, 0);	/* XXX gross */
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 	pkmap_page_table = virt_to_kpte(PKMAP_BASE);
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+
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+	kmap_pte = virt_to_kpte(__fix_to_virt(FIX_KMAP_BEGIN));
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 }
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 static void highmem_setup(void)