diff options
Diffstat (limited to 'arch/arm64/mm/dump.c')
| -rw-r--r-- | arch/arm64/mm/dump.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/arch/arm64/mm/dump.c b/arch/arm64/mm/dump.c index d54dc9ac4b7..74c256744b2 100644 --- a/arch/arm64/mm/dump.c +++ b/arch/arm64/mm/dump.c @@ -14,14 +14,18 @@ * of the License. */ #include <linux/debugfs.h> +#include <linux/errno.h> #include <linux/fs.h> #include <linux/io.h> +#include <linux/init.h> #include <linux/mm.h> #include <linux/sched.h> #include <linux/seq_file.h> #include <asm/fixmap.h> +#include <asm/memory.h> #include <asm/pgtable.h> +#include <asm/pgtable-hwdef.h> #define LOWEST_ADDR (UL(0xffffffffffffffff) << VA_BITS) @@ -37,10 +41,10 @@ enum address_markers_idx { VMEMMAP_START_NR, VMEMMAP_END_NR, #endif - PCI_START_NR, - PCI_END_NR, FIXADDR_START_NR, FIXADDR_END_NR, + PCI_START_NR, + PCI_END_NR, MODULES_START_NR, MODUELS_END_NR, KERNEL_SPACE_NR, @@ -53,10 +57,10 @@ static struct addr_marker address_markers[] = { { 0, "vmemmap start" }, { 0, "vmemmap end" }, #endif - { (unsigned long) PCI_IOBASE, "PCI I/O start" }, - { (unsigned long) PCI_IOBASE + SZ_16M, "PCI I/O end" }, { FIXADDR_START, "Fixmap start" }, { FIXADDR_TOP, "Fixmap end" }, + { PCI_IO_START, "PCI I/O start" }, + { PCI_IO_END, "PCI I/O end" }, { MODULES_VADDR, "Modules start" }, { MODULES_END, "Modules end" }, { PAGE_OFFSET, "Kernel Mapping" }, @@ -246,10 +250,12 @@ static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start) for (i = 0; i < PTRS_PER_PMD; i++, pmd++) { addr = start + i * PMD_SIZE; - if (pmd_none(*pmd) || pmd_sect(*pmd) || pmd_bad(*pmd)) + if (pmd_none(*pmd) || pmd_sect(*pmd)) { note_page(st, addr, 3, pmd_val(*pmd)); - else + } else { + BUG_ON(pmd_bad(*pmd)); walk_pte(st, pmd, addr); + } } } @@ -261,10 +267,12 @@ static void walk_pud(struct pg_state *st, pgd_t *pgd, unsigned long start) for (i = 0; i < PTRS_PER_PUD; i++, pud++) { addr = start + i * PUD_SIZE; - if (pud_none(*pud) || pud_sect(*pud) || pud_bad(*pud)) + if (pud_none(*pud) || pud_sect(*pud)) { note_page(st, addr, 2, pud_val(*pud)); - else + } else { + BUG_ON(pud_bad(*pud)); walk_pmd(st, pud, addr); + } } } @@ -276,10 +284,12 @@ static void walk_pgd(struct pg_state *st, struct mm_struct *mm, unsigned long st for (i = 0; i < PTRS_PER_PGD; i++, pgd++) { addr = start + i * PGDIR_SIZE; - if (pgd_none(*pgd) || pgd_bad(*pgd)) + if (pgd_none(*pgd)) { note_page(st, addr, 1, pgd_val(*pgd)); - else + } else { + BUG_ON(pgd_bad(*pgd)); walk_pud(st, pgd, addr); + } } } |