We get the following compilation error if CONFIG_SPARSEMEM_VMEMMAP is set. --------------------------------------------------------------- ./arch/riscv/include/asm/pgtable-64.h: In function ‘pud_page’: ./include/asm-generic/memory_model.h:54:29: error: ‘vmemmap’ undeclared (first use in this function); did you mean ‘mem_map’? #define __pfn_to_page(pfn) (vmemmap + (pfn)) ^~~~~~~ ./include/asm-generic/memory_model.h:82:21: note: in expansion of macro ‘__pfn_to_page’ #define pfn_to_page __pfn_to_page ^~~~~~~~~~~~~ ./arch/riscv/include/asm/pgtable-64.h:70:9: note: in expansion of macro ‘pfn_to_page’ return pfn_to_page(pud_val(pud) >> _PAGE_PFN_SHIFT); --------------------------------------------------------------- Fix the compliation errors by moving all the address space definition macros before including pgtable-64.h. Fixes: 8ad8b72721d0 (riscv: Add KASAN support)
Unified · Split
| @@ -19,6 +19,47 @@ · 18 unmodified lines | ||
| 19 | 19 | #include <asm/tlbflush.h> |
| 20 | 20 | #include <linux/mm_types.h> |
| 21 | 21 | |
| 22 | +#ifdef CONFIG_MMU | |
| 23 | + | |
| 24 | +#define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1) | |
| 25 | +#define VMALLOC_END (PAGE_OFFSET - 1) | |
| 26 | +#define VMALLOC_START (PAGE_OFFSET - VMALLOC_SIZE) | |
| 27 | + | |
| 28 | +#define BPF_JIT_REGION_SIZE (SZ_128M) | |
| 29 | +#define BPF_JIT_REGION_START (PAGE_OFFSET - BPF_JIT_REGION_SIZE) | |
| 30 | +#define BPF_JIT_REGION_END (VMALLOC_END) | |
| 31 | + | |
| 32 | +/* | |
| 33 | + * Roughly size the vmemmap space to be large enough to fit enough | |
| 34 | + * struct pages to map half the virtual address space. Then | |
| 35 | + * position vmemmap directly below the VMALLOC region. | |
| 36 | + */ | |
| 37 | +#define VMEMMAP_SHIFT \ | |
| 38 | + (CONFIG_VA_BITS - PAGE_SHIFT - 1 + STRUCT_PAGE_MAX_SHIFT) | |
| 39 | +#define VMEMMAP_SIZE BIT(VMEMMAP_SHIFT) | |
| 40 | +#define VMEMMAP_END (VMALLOC_START - 1) | |
| 41 | +#define VMEMMAP_START (VMALLOC_START - VMEMMAP_SIZE) | |
| 42 | + | |
| 43 | +/* | |
| 44 | + * Define vmemmap for pfn_to_page & page_to_pfn calls. Needed if kernel | |
| 45 | + * is configured with CONFIG_SPARSEMEM_VMEMMAP enabled. | |
| 46 | + */ | |
| 47 | +#define vmemmap ((struct page *)VMEMMAP_START) | |
| 48 | + | |
| 49 | +#define PCI_IO_SIZE SZ_16M | |
| 50 | +#define PCI_IO_END VMEMMAP_START | |
| 51 | +#define PCI_IO_START (PCI_IO_END - PCI_IO_SIZE) | |
| 52 | + | |
| 53 | +#define FIXADDR_TOP PCI_IO_START | |
| 54 | +#ifdef CONFIG_64BIT | |
| 55 | +#define FIXADDR_SIZE PMD_SIZE | |
| 56 | +#else | |
| 57 | +#define FIXADDR_SIZE PGDIR_SIZE | |
| 58 | +#endif | |
| 59 | +#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE) | |
| 60 | + | |
| 61 | +#endif | |
| 62 | + | |
| 22 | 63 | #ifdef CONFIG_64BIT |
| 23 | 64 | #include <asm/pgtable-64.h> |
| 24 | 65 | #else |
| @@ -90,31 +131,6 @@ extern pgd_t swapper_pg_dir[]; · 65 unmodified lines | ||
| 90 | 131 | #define __S110 PAGE_SHARED_EXEC |
| 91 | 132 | #define __S111 PAGE_SHARED_EXEC |
| 92 | 133 | |
| 93 | −#define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1) | |
| 94 | −#define VMALLOC_END (PAGE_OFFSET - 1) | |
| 95 | −#define VMALLOC_START (PAGE_OFFSET - VMALLOC_SIZE) | |
| 96 | − | |
| 97 | −#define BPF_JIT_REGION_SIZE (SZ_128M) | |
| 98 | −#define BPF_JIT_REGION_START (PAGE_OFFSET - BPF_JIT_REGION_SIZE) | |
| 99 | −#define BPF_JIT_REGION_END (VMALLOC_END) | |
| 100 | − | |
| 101 | −/* | |
| 102 | − * Roughly size the vmemmap space to be large enough to fit enough | |
| 103 | − * struct pages to map half the virtual address space. Then | |
| 104 | − * position vmemmap directly below the VMALLOC region. | |
| 105 | − */ | |
| 106 | −#define VMEMMAP_SHIFT \ | |
| 107 | − (CONFIG_VA_BITS - PAGE_SHIFT - 1 + STRUCT_PAGE_MAX_SHIFT) | |
| 108 | −#define VMEMMAP_SIZE BIT(VMEMMAP_SHIFT) | |
| 109 | −#define VMEMMAP_END (VMALLOC_START - 1) | |
| 110 | −#define VMEMMAP_START (VMALLOC_START - VMEMMAP_SIZE) | |
| 111 | − | |
| 112 | −/* | |
| 113 | − * Define vmemmap for pfn_to_page & page_to_pfn calls. Needed if kernel | |
| 114 | − * is configured with CONFIG_SPARSEMEM_VMEMMAP enabled. | |
| 115 | − */ | |
| 116 | −#define vmemmap ((struct page *)VMEMMAP_START) | |
| 117 | − | |
| 118 | 134 | static inline int pmd_present(pmd_t pmd) |
| 119 | 135 | { |
| 120 | 136 | return (pmd_val(pmd) & (_PAGE_PRESENT | _PAGE_PROT_NONE)); |
| @@ -432,18 +448,6 @@ static inline int ptep_clear_flush_young(struct vm_area_struct *vma, · 311 unmodified lines | ||
| 432 | 448 | #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) |
| 433 | 449 | #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) |
| 434 | 450 | |
| 435 | −#define PCI_IO_SIZE SZ_16M | |
| 436 | −#define PCI_IO_END VMEMMAP_START | |
| 437 | −#define PCI_IO_START (PCI_IO_END - PCI_IO_SIZE) | |
| 438 | − | |
| 439 | −#define FIXADDR_TOP PCI_IO_START | |
| 440 | −#ifdef CONFIG_64BIT | |
| 441 | −#define FIXADDR_SIZE PMD_SIZE | |
| 442 | −#else | |
| 443 | −#define FIXADDR_SIZE PGDIR_SIZE | |
| 444 | −#endif | |
| 445 | −#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE) | |
| 446 | − | |
| 447 | 451 | /* |
| 448 | 452 | * Task size is 0x4000000000 for RV64 or 0x9fc00000 for RV32. |
| 449 | 453 | * Note that PGDIR_SIZE must evenly divide TASK_SIZE. |