projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 852622bf KYL |
1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | # | |
| 3 | # Copyright (c) 2023 MediaTek Inc. | |
| 4 | # | |
| 5 | # Authors: | |
| 6 | # Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com> | |
| 7 | # | |
| 8 | ||
| 9 | import gdb | |
| 10 | import re | |
| 11 | from linux import lists, utils, stackdepot, constants, mm | |
| 12 | ||
| 6620999f BW |
13 | if constants.LX_CONFIG_MMU: |
| 14 | vmap_area_type = utils.CachedType('struct vmap_area') | |
| 15 | vmap_area_ptr_type = vmap_area_type.get_type().pointer() | |
| 852622bf KYL |
16 | |
| 17 | def is_vmalloc_addr(x): | |
| 18 | pg_ops = mm.page_ops().ops | |
| 19 | addr = pg_ops.kasan_reset_tag(x) | |
| 20 | return addr >= pg_ops.VMALLOC_START and addr < pg_ops.VMALLOC_END | |
| 21 | ||
| 22 | class LxVmallocInfo(gdb.Command): | |
| 23 | """Show vmallocinfo""" | |
| 24 | ||
| 25 | def __init__(self): | |
| 26 | super(LxVmallocInfo, self).__init__("lx-vmallocinfo", gdb.COMMAND_DATA) | |
| 27 | ||
| 28 | def invoke(self, arg, from_tty): | |
| 6620999f BW |
29 | if not constants.LX_CONFIG_MMU: |
| 30 | raise gdb.GdbError("Requires MMU support") | |
| 31 | ||
| 852622bf KYL |
32 | vmap_area_list = gdb.parse_and_eval('vmap_area_list') |
| 33 | for vmap_area in lists.list_for_each_entry(vmap_area_list, vmap_area_ptr_type, "list"): | |
| 34 | if not vmap_area['vm']: | |
| 35 | gdb.write("0x%x-0x%x %10d vm_map_ram\n" % (vmap_area['va_start'], vmap_area['va_end'], | |
| 36 | vmap_area['va_end'] - vmap_area['va_start'])) | |
| 37 | continue | |
| 38 | v = vmap_area['vm'] | |
| 39 | gdb.write("0x%x-0x%x %10d" % (v['addr'], v['addr'] + v['size'], v['size'])) | |
| 40 | if v['caller']: | |
| 41 | gdb.write(" %s" % str(v['caller']).split(' ')[-1]) | |
| 42 | if v['nr_pages']: | |
| 43 | gdb.write(" pages=%d" % v['nr_pages']) | |
| 44 | if v['phys_addr']: | |
| 45 | gdb.write(" phys=0x%x" % v['phys_addr']) | |
| 46 | if v['flags'] & constants.LX_VM_IOREMAP: | |
| 47 | gdb.write(" ioremap") | |
| 48 | if v['flags'] & constants.LX_VM_ALLOC: | |
| 49 | gdb.write(" vmalloc") | |
| 50 | if v['flags'] & constants.LX_VM_MAP: | |
| 51 | gdb.write(" vmap") | |
| 52 | if v['flags'] & constants.LX_VM_USERMAP: | |
| 53 | gdb.write(" user") | |
| 54 | if v['flags'] & constants.LX_VM_DMA_COHERENT: | |
| 55 | gdb.write(" dma-coherent") | |
| 56 | if is_vmalloc_addr(v['pages']): | |
| 57 | gdb.write(" vpages") | |
| 58 | gdb.write("\n") | |
| 59 | ||
| 60 | LxVmallocInfo() |