disable cpu isolcpus

hc

2023-12-09 958e46acc8e900e8569dd467c1af9b8d2d019394

 kernel/arch/parisc/include/asm/page.h
..
..
@@ -42,47 +42,53 @@
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 /* NOTE: even on 64 bits, these entries are __u32 because we allocate
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  * the pmd and pgd in ZONE_DMA (i.e. under 4GB) */
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-typedef struct { __u32 pmd; } pmd_t;
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 typedef struct { __u32 pgd; } pgd_t;
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 typedef struct { unsigned long pgprot; } pgprot_t;
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-#define pte_val(x)	((x).pte)
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-/* These do not work lvalues, so make sure we don't use them as such. */
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+#if CONFIG_PGTABLE_LEVELS == 3
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+typedef struct { __u32 pmd; } pmd_t;
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+#define __pmd(x)	((pmd_t) { (x) } )
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+/* pXd_val() do not work as lvalues, so make sure we don't use them as such. */
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 #define pmd_val(x)	((x).pmd + 0)
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+#endif
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+
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+#define pte_val(x)	((x).pte)
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 #define pgd_val(x)	((x).pgd + 0)
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 #define pgprot_val(x)	((x).pgprot)
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 #define __pte(x)	((pte_t) { (x) } )
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-#define __pmd(x)	((pmd_t) { (x) } )
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 #define __pgd(x)	((pgd_t) { (x) } )
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 #define __pgprot(x)	((pgprot_t) { (x) } )
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-
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-#define __pmd_val_set(x,n) (x).pmd = (n)
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-#define __pgd_val_set(x,n) (x).pgd = (n)
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 #else
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 /*
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  * .. while these make it easier on the compiler
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  */
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 typedef unsigned long pte_t;
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+
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+#if CONFIG_PGTABLE_LEVELS == 3
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 typedef         __u32 pmd_t;
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+#define pmd_val(x)      (x)
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+#define __pmd(x)	(x)
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+#endif
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+
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 typedef         __u32 pgd_t;
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 typedef unsigned long pgprot_t;
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 #define pte_val(x)      (x)
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-#define pmd_val(x)      (x)
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 #define pgd_val(x)      (x)
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 #define pgprot_val(x)   (x)
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 #define __pte(x)        (x)
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-#define __pmd(x)	(x)
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 #define __pgd(x)        (x)
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 #define __pgprot(x)     (x)
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-#define __pmd_val_set(x,n) (x) = (n)
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-#define __pgd_val_set(x,n) (x) = (n)
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-
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 #endif /* STRICT_MM_TYPECHECKS */
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+
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+#define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval))
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+#if CONFIG_PGTABLE_LEVELS == 3
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+#define set_pud(pudptr, pudval) (*(pudptr) = (pudval))
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+#endif
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 typedef struct page *pgtable_t;
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@@ -106,7 +112,7 @@
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 #else
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 #define BITS_PER_PTE_ENTRY	2
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 #define BITS_PER_PMD_ENTRY	2
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-#define BITS_PER_PGD_ENTRY	BITS_PER_PMD_ENTRY
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+#define BITS_PER_PGD_ENTRY	2
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 #endif
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 #define PGD_ENTRY_SIZE	(1UL << BITS_PER_PGD_ENTRY)
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 #define PMD_ENTRY_SIZE	(1UL << BITS_PER_PMD_ENTRY)
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@@ -117,14 +123,16 @@
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 /* This governs the relationship between virtual and physical addresses.
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  * If you alter it, make sure to take care of our various fixed mapping
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  * segments in fixmap.h */
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-#if defined(BOOTLOADER)
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-#define __PAGE_OFFSET	(0)		/* bootloader uses physical addresses */
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-#else
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 #ifdef CONFIG_64BIT
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-#define __PAGE_OFFSET	(0x40000000)	/* 1GB */
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+#define __PAGE_OFFSET_DEFAULT	(0x40000000)	/* 1GB */
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 #else
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-#define __PAGE_OFFSET	(0x10000000)	/* 256MB */
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+#define __PAGE_OFFSET_DEFAULT	(0x10000000)	/* 256MB */
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 #endif
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+
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+#if defined(BOOTLOADER)
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+#define __PAGE_OFFSET	(0)	/* bootloader uses physical addresses */
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+#else
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+#define __PAGE_OFFSET	__PAGE_OFFSET_DEFAULT
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 #endif /* BOOTLOADER */
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 #define PAGE_OFFSET		((unsigned long)__PAGE_OFFSET)
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@@ -171,9 +179,6 @@
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 #define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
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 #define virt_to_page(kaddr)     pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
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-
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-#define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
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-				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
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 #include <asm-generic/memory_model.h>
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 #include <asm-generic/getorder.h>