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Merge branch 'akpm' (patches from Andrew) 

Merge misc updates from Andrew Morton:

 - large KASAN update to use arm's "software tag-based mode"

 - a few misc things

 - sh updates

 - ocfs2 updates

 - just about all of MM

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (167 commits)
  kernel/fork.c: mark 'stack_vm_area' with __maybe_unused
  memcg, oom: notify on oom killer invocation from the charge path
  mm, swap: fix swapoff with KSM pages
  include/linux/gfp.h: fix typo
  mm/hmm: fix memremap.h, move dev_page_fault_t callback to hmm
  hugetlbfs: Use i_mmap_rwsem to fix page fault/truncate race
  hugetlbfs: use i_mmap_rwsem for more pmd sharing synchronization
  memory_hotplug: add missing newlines to debugging output
  mm: remove __hugepage_set_anon_rmap()
  include/linux/vmstat.h: remove unused page state adjustment macro
  mm/page_alloc.c: allow error injection
  mm: migrate: drop unused argument of migrate_page_move_mapping()
  blkdev: avoid migration stalls for blkdev pages
  mm: migrate: provide buffer_migrate_page_norefs()
  mm: migrate: move migrate_page_lock_buffers()
  mm: migrate: lock buffers before migrate_page_move_mapping()
  mm: migration: factor out code to compute expected number of page references
  mm, page_alloc: enable pcpu_drain with zone capability
  kmemleak: add config to select auto scan
  mm/page_alloc.c: don't call kasan_free_pages() at deferred mem init
  ...
This commit is contained in:
Linus Torvalds 2018-12-28 16:55:46 -08:00
parent 00d59fde85 0f4991e8fd
commit f346b0becb
585 changed files with 5038 additions and 4542 deletions
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32
Documentation/ABI/testing/sysfs-block-zram
View File

@ -98,3 +98,35 @@ Description:
The backing_dev file is read-write and set up backing The backing_dev file is read-write and set up backing
device for zram to write incompressible pages. device for zram to write incompressible pages.
For using, user should enable CONFIG_ZRAM_WRITEBACK. For using, user should enable CONFIG_ZRAM_WRITEBACK.
What: /sys/block/zram<id>/idle
Date: November 2018
Contact: Minchan Kim <minchan@kernel.org>
Description:
idle file is write-only and mark zram slot as idle.
If system has mounted debugfs, user can see which slots
are idle via /sys/kernel/debug/zram/zram<id>/block_state
What: /sys/block/zram<id>/writeback
Date: November 2018
Contact: Minchan Kim <minchan@kernel.org>
Description:
The writeback file is write-only and trigger idle and/or
huge page writeback to backing device.
What: /sys/block/zram<id>/bd_stat
Date: November 2018
Contact: Minchan Kim <minchan@kernel.org>
Description:
The bd_stat file is read-only and represents backing device's
statistics (bd_count, bd_reads, bd_writes) in a format
similar to block layer statistics file format.
What: /sys/block/zram<id>/writeback_limit
Date: November 2018
Contact: Minchan Kim <minchan@kernel.org>
Description:
The writeback_limit file is read-write and specifies the maximum
amount of writeback ZRAM can do. The limit could be changed
in run time and "0" means disable the limit.
No limit is the initial state.

80
Documentation/blockdev/zram.txt
View File

@ -164,11 +164,14 @@ reset WO trigger device reset
mem_used_max WO reset the `mem_used_max' counter (see later) mem_used_max WO reset the `mem_used_max' counter (see later)
mem_limit WO specifies the maximum amount of memory ZRAM can use mem_limit WO specifies the maximum amount of memory ZRAM can use
to store the compressed data to store the compressed data
writeback_limit WO specifies the maximum amount of write IO zram can
write out to backing device as 4KB unit
max_comp_streams RW the number of possible concurrent compress operations max_comp_streams RW the number of possible concurrent compress operations
comp_algorithm RW show and change the compression algorithm comp_algorithm RW show and change the compression algorithm
compact WO trigger memory compaction compact WO trigger memory compaction
debug_stat RO this file is used for zram debugging purposes debug_stat RO this file is used for zram debugging purposes
backing_dev RW set up backend storage for zram to write out backing_dev RW set up backend storage for zram to write out
idle WO mark allocated slot as idle
User space is advised to use the following files to read the device statistics. User space is advised to use the following files to read the device statistics.
@ -220,6 +223,17 @@ line of text and contains the following stats separated by whitespace:
pages_compacted the number of pages freed during compaction pages_compacted the number of pages freed during compaction
huge_pages the number of incompressible pages huge_pages the number of incompressible pages
File /sys/block/zram<id>/bd_stat
The stat file represents device's backing device statistics. It consists of
a single line of text and contains the following stats separated by whitespace:
bd_count size of data written in backing device.
Unit: 4K bytes
bd_reads the number of reads from backing device
Unit: 4K bytes
bd_writes the number of writes to backing device
Unit: 4K bytes
9) Deactivate: 9) Deactivate:
swapoff /dev/zram0 swapoff /dev/zram0
umount /dev/zram1 umount /dev/zram1
@ -237,11 +251,60 @@ line of text and contains the following stats separated by whitespace:
= writeback = writeback
With incompressible pages, there is no memory saving with zram. With CONFIG_ZRAM_WRITEBACK, zram can write idle/incompressible page
Instead, with CONFIG_ZRAM_WRITEBACK, zram can write incompressible page
to backing storage rather than keeping it in memory. to backing storage rather than keeping it in memory.
User should set up backing device via /sys/block/zramX/backing_dev To use the feature, admin should set up backing device via
before disksize setting.
"echo /dev/sda5 > /sys/block/zramX/backing_dev"
before disksize setting. It supports only partition at this moment.
If admin want to use incompressible page writeback, they could do via
"echo huge > /sys/block/zramX/write"
To use idle page writeback, first, user need to declare zram pages
as idle.
"echo all > /sys/block/zramX/idle"
From now on, any pages on zram are idle pages. The idle mark
will be removed until someone request access of the block.
IOW, unless there is access request, those pages are still idle pages.
Admin can request writeback of those idle pages at right timing via
"echo idle > /sys/block/zramX/writeback"
With the command, zram writeback idle pages from memory to the storage.
If there are lots of write IO with flash device, potentially, it has
flash wearout problem so that admin needs to design write limitation
to guarantee storage health for entire product life.
To overcome the concern, zram supports "writeback_limit".
The "writeback_limit"'s default value is 0 so that it doesn't limit
any writeback. If admin want to measure writeback count in a certain
period, he could know it via /sys/block/zram0/bd_stat's 3rd column.
If admin want to limit writeback as per-day 400M, he could do it
like below.
MB_SHIFT=20
4K_SHIFT=12
echo $((400<<MB_SHIFT>>4K_SHIFT)) > \
/sys/block/zram0/writeback_limit.
If admin want to allow further write again, he could do it like below
echo 0 > /sys/block/zram0/writeback_limit
If admin want to see remaining writeback budget since he set,
cat /sys/block/zram0/writeback_limit
The writeback_limit count will reset whenever you reset zram(e.g.,
system reboot, echo 1 > /sys/block/zramX/reset) so keeping how many of
writeback happened until you reset the zram to allocate extra writeback
budget in next setting is user's job.
= memory tracking = memory tracking
@ -251,16 +314,17 @@ pages of the process with*pagemap.
If you enable the feature, you could see block state via If you enable the feature, you could see block state via
/sys/kernel/debug/zram/zram0/block_state". The output is as follows, /sys/kernel/debug/zram/zram0/block_state". The output is as follows,
300 75.033841 .wh 300 75.033841 .wh.
301 63.806904 s.. 301 63.806904 s...
302 63.806919 ..h 302 63.806919 ..hi
First column is zram's block index. First column is zram's block index.
Second column is access time since the system was booted Second column is access time since the system was booted
Third column is state of the block. Third column is state of the block.
(s: same page (s: same page
w: written page to backing store w: written page to backing store
h: huge page) h: huge page
i: idle page)
First line of above example says 300th block is accessed at 75.033841sec First line of above example says 300th block is accessed at 75.033841sec
and the block's state is huge so it is written back to the backing and the block's state is huge so it is written back to the backing

230
Documentation/dev-tools/kasan.rst
View File

@ -4,15 +4,25 @@ The Kernel Address Sanitizer (KASAN)
Overview Overview
-------- --------
KernelAddressSANitizer (KASAN) is a dynamic memory error detector. It provides KernelAddressSANitizer (KASAN) is a dynamic memory error detector designed to
a fast and comprehensive solution for finding use-after-free and out-of-bounds find out-of-bound and use-after-free bugs. KASAN has two modes: generic KASAN
bugs. (similar to userspace ASan) and software tag-based KASAN (similar to userspace
HWASan).
KASAN uses compile-time instrumentation for checking every memory access, KASAN uses compile-time instrumentation to insert validity checks before every
therefore you will need a GCC version 4.9.2 or later. GCC 5.0 or later is memory access, and therefore requires a compiler version that supports that.
required for detection of out-of-bounds accesses to stack or global variables.
Currently KASAN is supported only for the x86_64 and arm64 architectures. Generic KASAN is supported in both GCC and Clang. With GCC it requires version
4.9.2 or later for basic support and version 5.0 or later for detection of
out-of-bounds accesses for stack and global variables and for inline
instrumentation mode (see the Usage section). With Clang it requires version
7.0.0 or later and it doesn't support detection of out-of-bounds accesses for
global variables yet.
Tag-based KASAN is only supported in Clang and requires version 7.0.0 or later.
Currently generic KASAN is supported for the x86_64, arm64, xtensa and s390
architectures, and tag-based KASAN is supported only for arm64.
Usage Usage
----- -----
@ -21,12 +31,14 @@ To enable KASAN configure kernel with::
CONFIG_KASAN = y CONFIG_KASAN = y
and choose between CONFIG_KASAN_OUTLINE and CONFIG_KASAN_INLINE. Outline and and choose between CONFIG_KASAN_GENERIC (to enable generic KASAN) and
inline are compiler instrumentation types. The former produces smaller binary CONFIG_KASAN_SW_TAGS (to enable software tag-based KASAN).
the latter is 1.1 - 2 times faster. Inline instrumentation requires a GCC
version 5.0 or later.
KASAN works with both SLUB and SLAB memory allocators. You also need to choose between CONFIG_KASAN_OUTLINE and CONFIG_KASAN_INLINE.
Outline and inline are compiler instrumentation types. The former produces
smaller binary while the latter is 1.1 - 2 times faster.
Both KASAN modes work with both SLUB and SLAB memory allocators.
For better bug detection and nicer reporting, enable CONFIG_STACKTRACE. For better bug detection and nicer reporting, enable CONFIG_STACKTRACE.
To disable instrumentation for specific files or directories, add a line To disable instrumentation for specific files or directories, add a line
@ -43,85 +55,85 @@ similar to the following to the respective kernel Makefile:
Error reports Error reports
~~~~~~~~~~~~~ ~~~~~~~~~~~~~
A typical out of bounds access report looks like this:: A typical out-of-bounds access generic KASAN report looks like this::
================================================================== ==================================================================
BUG: AddressSanitizer: out of bounds access in kmalloc_oob_right+0x65/0x75 [test_kasan] at addr ffff8800693bc5d3 BUG: KASAN: slab-out-of-bounds in kmalloc_oob_right+0xa8/0xbc [test_kasan]
Write of size 1 by task modprobe/1689 Write of size 1 at addr ffff8801f44ec37b by task insmod/2760
=============================================================================
BUG kmalloc-128 (Not tainted): kasan error
-----------------------------------------------------------------------------
Disabling lock debugging due to kernel taint CPU: 1 PID: 2760 Comm: insmod Not tainted 4.19.0-rc3+ #698
INFO: Allocated in kmalloc_oob_right+0x3d/0x75 [test_kasan] age=0 cpu=0 pid=1689 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
__slab_alloc+0x4b4/0x4f0
kmem_cache_alloc_trace+0x10b/0x190
kmalloc_oob_right+0x3d/0x75 [test_kasan]
init_module+0x9/0x47 [test_kasan]
do_one_initcall+0x99/0x200
load_module+0x2cb3/0x3b20
SyS_finit_module+0x76/0x80
system_call_fastpath+0x12/0x17
INFO: Slab 0xffffea0001a4ef00 objects=17 used=7 fp=0xffff8800693bd728 flags=0x100000000004080
INFO: Object 0xffff8800693bc558 @offset=1368 fp=0xffff8800693bc720
Bytes b4 ffff8800693bc548: 00 00 00 00 00 00 00 00 5a 5a 5a 5a 5a 5a 5a 5a ........ZZZZZZZZ
Object ffff8800693bc558: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
Object ffff8800693bc568: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
Object ffff8800693bc578: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
Object ffff8800693bc588: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
Object ffff8800693bc598: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
Object ffff8800693bc5a8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
Object ffff8800693bc5b8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
Object ffff8800693bc5c8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk.
Redzone ffff8800693bc5d8: cc cc cc cc cc cc cc cc ........
Padding ffff8800693bc718: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ
CPU: 0 PID: 1689 Comm: modprobe Tainted: G B 3.18.0-rc1-mm1+ #98
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.7.5-0-ge51488c-20140602_164612-nilsson.home.kraxel.org 04/01/2014
ffff8800693bc000 0000000000000000 ffff8800693bc558 ffff88006923bb78
ffffffff81cc68ae 00000000000000f3 ffff88006d407600 ffff88006923bba8
ffffffff811fd848 ffff88006d407600 ffffea0001a4ef00 ffff8800693bc558
Call Trace: Call Trace:
[<ffffffff81cc68ae>] dump_stack+0x46/0x58 dump_stack+0x94/0xd8
[<ffffffff811fd848>] print_trailer+0xf8/0x160 print_address_description+0x73/0x280
[<ffffffffa00026a7>] ? kmem_cache_oob+0xc3/0xc3 [test_kasan] kasan_report+0x144/0x187
[<ffffffff811ff0f5>] object_err+0x35/0x40 __asan_report_store1_noabort+0x17/0x20
[<ffffffffa0002065>] ? kmalloc_oob_right+0x65/0x75 [test_kasan] kmalloc_oob_right+0xa8/0xbc [test_kasan]
[<ffffffff8120b9fa>] kasan_report_error+0x38a/0x3f0 kmalloc_tests_init+0x16/0x700 [test_kasan]
[<ffffffff8120a79f>] ? kasan_poison_shadow+0x2f/0x40 do_one_initcall+0xa5/0x3ae
[<ffffffff8120b344>] ? kasan_unpoison_shadow+0x14/0x40 do_init_module+0x1b6/0x547
[<ffffffff8120a79f>] ? kasan_poison_shadow+0x2f/0x40 load_module+0x75df/0x8070
[<ffffffffa00026a7>] ? kmem_cache_oob+0xc3/0xc3 [test_kasan] __do_sys_init_module+0x1c6/0x200
[<ffffffff8120a995>] __asan_store1+0x75/0xb0 __x64_sys_init_module+0x6e/0xb0
[<ffffffffa0002601>] ? kmem_cache_oob+0x1d/0xc3 [test_kasan] do_syscall_64+0x9f/0x2c0
[<ffffffffa0002065>] ? kmalloc_oob_right+0x65/0x75 [test_kasan] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[<ffffffffa0002065>] kmalloc_oob_right+0x65/0x75 [test_kasan] RIP: 0033:0x7f96443109da
[<ffffffffa00026b0>] init_module+0x9/0x47 [test_kasan] RSP: 002b:00007ffcf0b51b08 EFLAGS: 00000202 ORIG_RAX: 00000000000000af
[<ffffffff810002d9>] do_one_initcall+0x99/0x200 RAX: ffffffffffffffda RBX: 000055dc3ee521a0 RCX: 00007f96443109da
[<ffffffff811e4e5c>] ? __vunmap+0xec/0x160 RDX: 00007f96445cff88 RSI: 0000000000057a50 RDI: 00007f9644992000
[<ffffffff81114f63>] load_module+0x2cb3/0x3b20 RBP: 000055dc3ee510b0 R08: 0000000000000003 R09: 0000000000000000
[<ffffffff8110fd70>] ? m_show+0x240/0x240 R10: 00007f964430cd0a R11: 0000000000000202 R12: 00007f96445cff88
[<ffffffff81115f06>] SyS_finit_module+0x76/0x80 R13: 000055dc3ee51090 R14: 0000000000000000 R15: 0000000000000000
[<ffffffff81cd3129>] system_call_fastpath+0x12/0x17
Allocated by task 2760:
save_stack+0x43/0xd0
kasan_kmalloc+0xa7/0xd0
kmem_cache_alloc_trace+0xe1/0x1b0
kmalloc_oob_right+0x56/0xbc [test_kasan]
kmalloc_tests_init+0x16/0x700 [test_kasan]
do_one_initcall+0xa5/0x3ae
do_init_module+0x1b6/0x547
load_module+0x75df/0x8070
__do_sys_init_module+0x1c6/0x200
__x64_sys_init_module+0x6e/0xb0
do_syscall_64+0x9f/0x2c0
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Freed by task 815:
save_stack+0x43/0xd0
__kasan_slab_free+0x135/0x190
kasan_slab_free+0xe/0x10
kfree+0x93/0x1a0
umh_complete+0x6a/0xa0
call_usermodehelper_exec_async+0x4c3/0x640
ret_from_fork+0x35/0x40
The buggy address belongs to the object at ffff8801f44ec300
which belongs to the cache kmalloc-128 of size 128
The buggy address is located 123 bytes inside of
128-byte region [ffff8801f44ec300, ffff8801f44ec380)
The buggy address belongs to the page:
page:ffffea0007d13b00 count:1 mapcount:0 mapping:ffff8801f7001640 index:0x0
flags: 0x200000000000100(slab)
raw: 0200000000000100 ffffea0007d11dc0 0000001a0000001a ffff8801f7001640
raw: 0000000000000000 0000000080150015 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address: Memory state around the buggy address:
ffff8800693bc300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8801f44ec200: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
ffff8800693bc380: fc fc 00 00 00 00 00 00 00 00 00 00 00 00 00 fc ffff8801f44ec280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
ffff8800693bc400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8801f44ec300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03
ffff8800693bc480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^
ffff8800693bc500: fc fc fc fc fc fc fc fc fc fc fc 00 00 00 00 00 ffff8801f44ec380: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
>ffff8800693bc580: 00 00 00 00 00 00 00 00 00 00 03 fc fc fc fc fc ffff8801f44ec400: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
^
ffff8800693bc600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8800693bc680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8800693bc700: fc fc fc fc fb fb fb fb fb fb fb fb fb fb fb fb
ffff8800693bc780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8800693bc800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
================================================================== ==================================================================
The header of the report discribe what kind of bug happened and what kind of The header of the report provides a short summary of what kind of bug happened
access caused it. It's followed by the description of the accessed slub object and what kind of access caused it. It's followed by a stack trace of the bad
(see 'SLUB Debug output' section in Documentation/vm/slub.rst for details) and access, a stack trace of where the accessed memory was allocated (in case bad
the description of the accessed memory page. access happens on a slab object), and a stack trace of where the object was
freed (in case of a use-after-free bug report). Next comes a description of
the accessed slab object and information about the accessed memory page.
In the last section the report shows memory state around the accessed address. In the last section the report shows memory state around the accessed address.
Reading this part requires some understanding of how KASAN works. Reading this part requires some understanding of how KASAN works.
@ -138,18 +150,24 @@ inaccessible memory like redzones or freed memory (see mm/kasan/kasan.h).
In the report above the arrows point to the shadow byte 03, which means that In the report above the arrows point to the shadow byte 03, which means that
the accessed address is partially accessible. the accessed address is partially accessible.
For tag-based KASAN this last report section shows the memory tags around the
accessed address (see Implementation details section).
Implementation details Implementation details
---------------------- ----------------------
Generic KASAN
~~~~~~~~~~~~~
From a high level, our approach to memory error detection is similar to that From a high level, our approach to memory error detection is similar to that
of kmemcheck: use shadow memory to record whether each byte of memory is safe of kmemcheck: use shadow memory to record whether each byte of memory is safe
to access, and use compile-time instrumentation to check shadow memory on each to access, and use compile-time instrumentation to insert checks of shadow
memory access. memory on each memory access.
AddressSanitizer dedicates 1/8 of kernel memory to its shadow memory Generic KASAN dedicates 1/8th of kernel memory to its shadow memory (e.g. 16TB
(e.g. 16TB to cover 128TB on x86_64) and uses direct mapping with a scale and to cover 128TB on x86_64) and uses direct mapping with a scale and offset to
offset to translate a memory address to its corresponding shadow address. translate a memory address to its corresponding shadow address.
Here is the function which translates an address to its corresponding shadow Here is the function which translates an address to its corresponding shadow
address:: address::
@ -162,12 +180,38 @@ address::
where ``KASAN_SHADOW_SCALE_SHIFT = 3``. where ``KASAN_SHADOW_SCALE_SHIFT = 3``.
Compile-time instrumentation used for checking memory accesses. Compiler inserts Compile-time instrumentation is used to insert memory access checks. Compiler
function calls (__asan_load*(addr), __asan_store*(addr)) before each memory inserts function calls (__asan_load*(addr), __asan_store*(addr)) before each
access of size 1, 2, 4, 8 or 16. These functions check whether memory access is memory access of size 1, 2, 4, 8 or 16. These functions check whether memory
valid or not by checking corresponding shadow memory. access is valid or not by checking corresponding shadow memory.
GCC 5.0 has possibility to perform inline instrumentation. Instead of making GCC 5.0 has possibility to perform inline instrumentation. Instead of making
function calls GCC directly inserts the code to check the shadow memory. function calls GCC directly inserts the code to check the shadow memory.
This option significantly enlarges kernel but it gives x1.1-x2 performance This option significantly enlarges kernel but it gives x1.1-x2 performance
boost over outline instrumented kernel. boost over outline instrumented kernel.
Software tag-based KASAN
~~~~~~~~~~~~~~~~~~~~~~~~
Tag-based KASAN uses the Top Byte Ignore (TBI) feature of modern arm64 CPUs to
store a pointer tag in the top byte of kernel pointers. Like generic KASAN it
uses shadow memory to store memory tags associated with each 16-byte memory
cell (therefore it dedicates 1/16th of the kernel memory for shadow memory).
On each memory allocation tag-based KASAN generates a random tag, tags the
allocated memory with this tag, and embeds this tag into the returned pointer.
Software tag-based KASAN uses compile-time instrumentation to insert checks
before each memory access. These checks make sure that tag of the memory that
is being accessed is equal to tag of the pointer that is used to access this
memory. In case of a tag mismatch tag-based KASAN prints a bug report.
Software tag-based KASAN also has two instrumentation modes (outline, that
emits callbacks to check memory accesses; and inline, that performs the shadow
memory checks inline). With outline instrumentation mode, a bug report is
simply printed from the function that performs the access check. With inline
instrumentation a brk instruction is emitted by the compiler, and a dedicated
brk handler is used to print bug reports.
A potential expansion of this mode is a hardware tag-based mode, which would
use hardware memory tagging support instead of compiler instrumentation and
manual shadow memory manipulation.

10
Documentation/filesystems/proc.txt
View File

@ -182,6 +182,7 @@ read the file /proc/PID/status:
VmSwap: 0 kB VmSwap: 0 kB
HugetlbPages: 0 kB HugetlbPages: 0 kB
CoreDumping: 0 CoreDumping: 0
THP_enabled: 1
Threads: 1 Threads: 1
SigQ: 0/28578 SigQ: 0/28578
SigPnd: 0000000000000000 SigPnd: 0000000000000000
@ -256,6 +257,8 @@ Table 1-2: Contents of the status files (as of 4.8)
HugetlbPages size of hugetlb memory portions HugetlbPages size of hugetlb memory portions
CoreDumping process's memory is currently being dumped CoreDumping process's memory is currently being dumped
(killing the process may lead to a corrupted core) (killing the process may lead to a corrupted core)
THP_enabled process is allowed to use THP (returns 0 when
PR_SET_THP_DISABLE is set on the process
Threads number of threads Threads number of threads
SigQ number of signals queued/max. number for queue SigQ number of signals queued/max. number for queue
SigPnd bitmap of pending signals for the thread SigPnd bitmap of pending signals for the thread
@ -425,6 +428,7 @@ SwapPss: 0 kB
KernelPageSize: 4 kB KernelPageSize: 4 kB
MMUPageSize: 4 kB MMUPageSize: 4 kB
Locked: 0 kB Locked: 0 kB
THPeligible: 0
VmFlags: rd ex mr mw me dw VmFlags: rd ex mr mw me dw
the first of these lines shows the same information as is displayed for the the first of these lines shows the same information as is displayed for the
@ -462,6 +466,8 @@ replaced by copy-on-write) part of the underlying shmem object out on swap.
"SwapPss" shows proportional swap share of this mapping. Unlike "Swap", this "SwapPss" shows proportional swap share of this mapping. Unlike "Swap", this
does not take into account swapped out page of underlying shmem objects. does not take into account swapped out page of underlying shmem objects.
"Locked" indicates whether the mapping is locked in memory or not. "Locked" indicates whether the mapping is locked in memory or not.
"THPeligible" indicates whether the mapping is eligible for THP pages - 1 if
true, 0 otherwise.
"VmFlags" field deserves a separate description. This member represents the kernel "VmFlags" field deserves a separate description. This member represents the kernel
flags associated with the particular virtual memory area in two letter encoded flags associated with the particular virtual memory area in two letter encoded
@ -496,7 +502,9 @@ manner. The codes are the following:
Note that there is no guarantee that every flag and associated mnemonic will Note that there is no guarantee that every flag and associated mnemonic will
be present in all further kernel releases. Things get changed, the flags may be present in all further kernel releases. Things get changed, the flags may
be vanished or the reverse -- new added. be vanished or the reverse -- new added. Interpretation of their meaning
might change in future as well. So each consumer of these flags has to
follow each specific kernel version for the exact semantic.
This file is only present if the CONFIG_MMU kernel configuration option is This file is only present if the CONFIG_MMU kernel configuration option is
enabled. enabled.

21
Documentation/sysctl/vm.txt
View File

@ -63,6 +63,7 @@ Currently, these files are in /proc/sys/vm:
- swappiness - swappiness
- user_reserve_kbytes - user_reserve_kbytes
- vfs_cache_pressure - vfs_cache_pressure
- watermark_boost_factor
- watermark_scale_factor - watermark_scale_factor
- zone_reclaim_mode - zone_reclaim_mode
@ -856,6 +857,26 @@ ten times more freeable objects than there are.
============================================================= =============================================================
watermark_boost_factor:
This factor controls the level of reclaim when memory is being fragmented.
It defines the percentage of the high watermark of a zone that will be
reclaimed if pages of different mobility are being mixed within pageblocks.
The intent is that compaction has less work to do in the future and to
increase the success rate of future high-order allocations such as SLUB
allocations, THP and hugetlbfs pages.
To make it sensible with respect to the watermark_scale_factor parameter,
the unit is in fractions of 10,000. The default value of 15,000 means
that up to 150% of the high watermark will be reclaimed in the event of
a pageblock being mixed due to fragmentation. The level of reclaim is
determined by the number of fragmentation events that occurred in the
recent past. If this value is smaller than a pageblock then a pageblocks
worth of pages will be reclaimed (e.g. 2MB on 64-bit x86). A boost factor
of 0 will disable the feature.
=============================================================
watermark_scale_factor: watermark_scale_factor:
This factor controls the aggressiveness of kswapd. It defines the This factor controls the aggressiveness of kswapd. It defines the

1
arch/arm64/Kconfig
View File

@ -110,6 +110,7 @@ config ARM64
select HAVE_ARCH_JUMP_LABEL select HAVE_ARCH_JUMP_LABEL
select HAVE_ARCH_JUMP_LABEL_RELATIVE select HAVE_ARCH_JUMP_LABEL_RELATIVE
select HAVE_ARCH_KASAN if !(ARM64_16K_PAGES && ARM64_VA_BITS_48) select HAVE_ARCH_KASAN if !(ARM64_16K_PAGES && ARM64_VA_BITS_48)
select HAVE_ARCH_KASAN_SW_TAGS if HAVE_ARCH_KASAN
select HAVE_ARCH_KGDB select HAVE_ARCH_KGDB
select HAVE_ARCH_MMAP_RND_BITS select HAVE_ARCH_MMAP_RND_BITS
select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT

11
arch/arm64/Makefile
View File

@ -101,10 +101,19 @@ else
TEXT_OFFSET := 0x00080000 TEXT_OFFSET := 0x00080000
endif endif
ifeq ($(CONFIG_KASAN_SW_TAGS), y)
KASAN_SHADOW_SCALE_SHIFT := 4
else
KASAN_SHADOW_SCALE_SHIFT := 3
endif
KBUILD_CFLAGS += -DKASAN_SHADOW_SCALE_SHIFT=$(KASAN_SHADOW_SCALE_SHIFT)
KBUILD_CPPFLAGS += -DKASAN_SHADOW_SCALE_SHIFT=$(KASAN_SHADOW_SCALE_SHIFT)
KBUILD_AFLAGS += -DKASAN_SHADOW_SCALE_SHIFT=$(KASAN_SHADOW_SCALE_SHIFT)
# KASAN_SHADOW_OFFSET = VA_START + (1 << (VA_BITS - KASAN_SHADOW_SCALE_SHIFT)) # KASAN_SHADOW_OFFSET = VA_START + (1 << (VA_BITS - KASAN_SHADOW_SCALE_SHIFT))
# - (1 << (64 - KASAN_SHADOW_SCALE_SHIFT)) # - (1 << (64 - KASAN_SHADOW_SCALE_SHIFT))
# in 32-bit arithmetic # in 32-bit arithmetic
KASAN_SHADOW_SCALE_SHIFT := 3
KASAN_SHADOW_OFFSET := $(shell printf "0x%08x00000000\n" $$(( \ KASAN_SHADOW_OFFSET := $(shell printf "0x%08x00000000\n" $$(( \
(0xffffffff & (-1 << ($(CONFIG_ARM64_VA_BITS) - 32))) \ (0xffffffff & (-1 << ($(CONFIG_ARM64_VA_BITS) - 32))) \
+ (1 << ($(CONFIG_ARM64_VA_BITS) - 32 - $(KASAN_SHADOW_SCALE_SHIFT))) \ + (1 << ($(CONFIG_ARM64_VA_BITS) - 32 - $(KASAN_SHADOW_SCALE_SHIFT))) \

2
arch/arm64/include/asm/brk-imm.h
View File

@ -16,10 +16,12 @@
* 0x400: for dynamic BRK instruction * 0x400: for dynamic BRK instruction
* 0x401: for compile time BRK instruction * 0x401: for compile time BRK instruction
* 0x800: kernel-mode BUG() and WARN() traps * 0x800: kernel-mode BUG() and WARN() traps
* 0x9xx: tag-based KASAN trap (allowed values 0x900 - 0x9ff)
*/ */
#define FAULT_BRK_IMM 0x100 #define FAULT_BRK_IMM 0x100
#define KGDB_DYN_DBG_BRK_IMM 0x400 #define KGDB_DYN_DBG_BRK_IMM 0x400
#define KGDB_COMPILED_DBG_BRK_IMM 0x401 #define KGDB_COMPILED_DBG_BRK_IMM 0x401
#define BUG_BRK_IMM 0x800 #define BUG_BRK_IMM 0x800
#define KASAN_BRK_IMM 0x900
#endif #endif

8
arch/arm64/include/asm/kasan.h
View File

@ -4,12 +4,16 @@
#ifndef __ASSEMBLY__ #ifndef __ASSEMBLY__
#ifdef CONFIG_KASAN
#include <linux/linkage.h> #include <linux/linkage.h>
#include <asm/memory.h> #include <asm/memory.h>
#include <asm/pgtable-types.h> #include <asm/pgtable-types.h>
#define arch_kasan_set_tag(addr, tag) __tag_set(addr, tag)
#define arch_kasan_reset_tag(addr) __tag_reset(addr)
#define arch_kasan_get_tag(addr) __tag_get(addr)
#ifdef CONFIG_KASAN
/* /*
* KASAN_SHADOW_START: beginning of the kernel virtual addresses. * KASAN_SHADOW_START: beginning of the kernel virtual addresses.
* KASAN_SHADOW_END: KASAN_SHADOW_START + 1/N of kernel virtual addresses, * KASAN_SHADOW_END: KASAN_SHADOW_START + 1/N of kernel virtual addresses,

43
arch/arm64/include/asm/memory.h
View File

@ -74,13 +74,11 @@
#endif #endif
/* /*
* KASAN requires 1/8th of the kernel virtual address space for the shadow * Generic and tag-based KASAN require 1/8th and 1/16th of the kernel virtual
* region. KASAN can bloat the stack significantly, so double the (minimum) * address space for the shadow region respectively. They can bloat the stack
* stack size when KASAN is in use, and then double it again if KASAN_EXTRA is * significantly, so double the (minimum) stack size when they are in use.
* on.
*/ */
#ifdef CONFIG_KASAN #ifdef CONFIG_KASAN
#define KASAN_SHADOW_SCALE_SHIFT 3
#define KASAN_SHADOW_SIZE (UL(1) << (VA_BITS - KASAN_SHADOW_SCALE_SHIFT)) #define KASAN_SHADOW_SIZE (UL(1) << (VA_BITS - KASAN_SHADOW_SCALE_SHIFT))
#ifdef CONFIG_KASAN_EXTRA #ifdef CONFIG_KASAN_EXTRA
#define KASAN_THREAD_SHIFT 2 #define KASAN_THREAD_SHIFT 2
@ -220,6 +218,26 @@ extern u64 vabits_user;
*/ */
#define PHYS_PFN_OFFSET (PHYS_OFFSET >> PAGE_SHIFT) #define PHYS_PFN_OFFSET (PHYS_OFFSET >> PAGE_SHIFT)
/*
* When dealing with data aborts, watchpoints, or instruction traps we may end
* up with a tagged userland pointer. Clear the tag to get a sane pointer to
* pass on to access_ok(), for instance.
*/
#define untagged_addr(addr) \
((__typeof__(addr))sign_extend64((u64)(addr), 55))
#ifdef CONFIG_KASAN_SW_TAGS
#define __tag_shifted(tag) ((u64)(tag) << 56)
#define __tag_set(addr, tag) (__typeof__(addr))( \
((u64)(addr) & ~__tag_shifted(0xff)) | __tag_shifted(tag))
#define __tag_reset(addr) untagged_addr(addr)
#define __tag_get(addr) (__u8)((u64)(addr) >> 56)
#else
#define __tag_set(addr, tag) (addr)
#define __tag_reset(addr) (addr)
#define __tag_get(addr) 0
#endif
/* /*
* Physical vs virtual RAM address space conversion. These are * Physical vs virtual RAM address space conversion. These are
* private definitions which should NOT be used outside memory.h * private definitions which should NOT be used outside memory.h
@ -303,7 +321,13 @@ static inline void *phys_to_virt(phys_addr_t x)
#define __virt_to_pgoff(kaddr) (((u64)(kaddr) & ~PAGE_OFFSET) / PAGE_SIZE * sizeof(struct page)) #define __virt_to_pgoff(kaddr) (((u64)(kaddr) & ~PAGE_OFFSET) / PAGE_SIZE * sizeof(struct page))
#define __page_to_voff(kaddr) (((u64)(kaddr) & ~VMEMMAP_START) * PAGE_SIZE / sizeof(struct page)) #define __page_to_voff(kaddr) (((u64)(kaddr) & ~VMEMMAP_START) * PAGE_SIZE / sizeof(struct page))
#define page_to_virt(page) ((void *)((__page_to_voff(page)) | PAGE_OFFSET)) #define page_to_virt(page) ({ \
unsigned long __addr = \
((__page_to_voff(page)) | PAGE_OFFSET); \
__addr = __tag_set(__addr, page_kasan_tag(page)); \
((void *)__addr); \
})
#define virt_to_page(vaddr) ((struct page *)((__virt_to_pgoff(vaddr)) | VMEMMAP_START)) #define virt_to_page(vaddr) ((struct page *)((__virt_to_pgoff(vaddr)) | VMEMMAP_START))
#define _virt_addr_valid(kaddr) pfn_valid((((u64)(kaddr) & ~PAGE_OFFSET) \ #define _virt_addr_valid(kaddr) pfn_valid((((u64)(kaddr) & ~PAGE_OFFSET) \
@ -311,9 +335,10 @@ static inline void *phys_to_virt(phys_addr_t x)
#endif #endif
#endif #endif
#define _virt_addr_is_linear(kaddr) (((u64)(kaddr)) >= PAGE_OFFSET) #define _virt_addr_is_linear(kaddr) \
#define virt_addr_valid(kaddr) (_virt_addr_is_linear(kaddr) && \ (__tag_reset((u64)(kaddr)) >= PAGE_OFFSET)
_virt_addr_valid(kaddr)) #define virt_addr_valid(kaddr) \
(_virt_addr_is_linear(kaddr) && _virt_addr_valid(kaddr))
#include <asm-generic/memory_model.h> #include <asm-generic/memory_model.h>

1
arch/arm64/include/asm/pgtable-hwdef.h
View File

@ -299,6 +299,7 @@
#define TCR_A1 (UL(1) << 22) #define TCR_A1 (UL(1) << 22)
#define TCR_ASID16 (UL(1) << 36) #define TCR_ASID16 (UL(1) << 36)
#define TCR_TBI0 (UL(1) << 37) #define TCR_TBI0 (UL(1) << 37)
#define TCR_TBI1 (UL(1) << 38)
#define TCR_HA (UL(1) << 39) #define TCR_HA (UL(1) << 39)
#define TCR_HD (UL(1) << 40) #define TCR_HD (UL(1) << 40)
#define TCR_NFD1 (UL(1) << 54) #define TCR_NFD1 (UL(1) << 54)

7
arch/arm64/include/asm/uaccess.h
View File

@ -95,13 +95,6 @@ static inline unsigned long __range_ok(const void __user *addr, unsigned long si
return ret; return ret;
} }
/*
* When dealing with data aborts, watchpoints, or instruction traps we may end
* up with a tagged userland pointer. Clear the tag to get a sane pointer to
* pass on to access_ok(), for instance.
*/
#define untagged_addr(addr) sign_extend64(addr, 55)
#define access_ok(type, addr, size) __range_ok(addr, size) #define access_ok(type, addr, size) __range_ok(addr, size)
#define user_addr_max get_fs #define user_addr_max get_fs

60
arch/arm64/kernel/traps.c
View File

@ -35,6 +35,7 @@
#include <linux/sizes.h> #include <linux/sizes.h>
#include <linux/syscalls.h> #include <linux/syscalls.h>
#include <linux/mm_types.h> #include <linux/mm_types.h>
#include <linux/kasan.h>
#include <asm/atomic.h> #include <asm/atomic.h>
#include <asm/bug.h> #include <asm/bug.h>
@ -969,6 +970,58 @@ static struct break_hook bug_break_hook = {
.fn = bug_handler, .fn = bug_handler,
}; };
#ifdef CONFIG_KASAN_SW_TAGS
#define KASAN_ESR_RECOVER 0x20
#define KASAN_ESR_WRITE 0x10
#define KASAN_ESR_SIZE_MASK 0x0f
#define KASAN_ESR_SIZE(esr) (1 << ((esr) & KASAN_ESR_SIZE_MASK))
static int kasan_handler(struct pt_regs *regs, unsigned int esr)
{
bool recover = esr & KASAN_ESR_RECOVER;
bool write = esr & KASAN_ESR_WRITE;
size_t size = KASAN_ESR_SIZE(esr);
u64 addr = regs->regs[0];
u64 pc = regs->pc;
if (user_mode(regs))
return DBG_HOOK_ERROR;
kasan_report(addr, size, write, pc);
/*
* The instrumentation allows to control whether we can proceed after
* a crash was detected. This is done by passing the -recover flag to
* the compiler. Disabling recovery allows to generate more compact
* code.
*
* Unfortunately disabling recovery doesn't work for the kernel right
* now. KASAN reporting is disabled in some contexts (for example when
* the allocator accesses slab object metadata; this is controlled by
* current->kasan_depth). All these accesses are detected by the tool,
* even though the reports for them are not printed.
*
* This is something that might be fixed at some point in the future.
*/
if (!recover)
die("Oops - KASAN", regs, 0);
/* If thread survives, skip over the brk instruction and continue: */
arm64_skip_faulting_instruction(regs, AARCH64_INSN_SIZE);
return DBG_HOOK_HANDLED;
}
#define KASAN_ESR_VAL (0xf2000000 | KASAN_BRK_IMM)
#define KASAN_ESR_MASK 0xffffff00
static struct break_hook kasan_break_hook = {
.esr_val = KASAN_ESR_VAL,
.esr_mask = KASAN_ESR_MASK,
.fn = kasan_handler,
};
#endif
/* /*
* Initial handler for AArch64 BRK exceptions * Initial handler for AArch64 BRK exceptions
* This handler only used until debug_traps_init(). * This handler only used until debug_traps_init().
@ -976,6 +1029,10 @@ static struct break_hook bug_break_hook = {
int __init early_brk64(unsigned long addr, unsigned int esr, int __init early_brk64(unsigned long addr, unsigned int esr,
struct pt_regs *regs) struct pt_regs *regs)
{ {
#ifdef CONFIG_KASAN_SW_TAGS
if ((esr & KASAN_ESR_MASK) == KASAN_ESR_VAL)
return kasan_handler(regs, esr) != DBG_HOOK_HANDLED;
#endif
return bug_handler(regs, esr) != DBG_HOOK_HANDLED; return bug_handler(regs, esr) != DBG_HOOK_HANDLED;
} }
@ -983,4 +1040,7 @@ int __init early_brk64(unsigned long addr, unsigned int esr,
void __init trap_init(void) void __init trap_init(void)
{ {
register_break_hook(&bug_break_hook); register_break_hook(&bug_break_hook);
#ifdef CONFIG_KASAN_SW_TAGS
register_break_hook(&kasan_break_hook);
#endif
} }

31
arch/arm64/mm/fault.c
View File

@ -40,6 +40,7 @@
#include <asm/daifflags.h> #include <asm/daifflags.h>
#include <asm/debug-monitors.h> #include <asm/debug-monitors.h>
#include <asm/esr.h> #include <asm/esr.h>
#include <asm/kasan.h>
#include <asm/sysreg.h> #include <asm/sysreg.h>
#include <asm/system_misc.h> #include <asm/system_misc.h>
#include <asm/pgtable.h> #include <asm/pgtable.h>
@ -132,6 +133,18 @@ static void mem_abort_decode(unsigned int esr)
data_abort_decode(esr); data_abort_decode(esr);
} }
static inline bool is_ttbr0_addr(unsigned long addr)
{
/* entry assembly clears tags for TTBR0 addrs */
return addr < TASK_SIZE;
}
static inline bool is_ttbr1_addr(unsigned long addr)
{
/* TTBR1 addresses may have a tag if KASAN_SW_TAGS is in use */
return arch_kasan_reset_tag(addr) >= VA_START;
}
/* /*
* Dump out the page tables associated with 'addr' in the currently active mm. * Dump out the page tables associated with 'addr' in the currently active mm.
*/ */
@ -141,7 +154,7 @@ void show_pte(unsigned long addr)
pgd_t *pgdp; pgd_t *pgdp;
pgd_t pgd; pgd_t pgd;
if (addr < TASK_SIZE) { if (is_ttbr0_addr(addr)) {
/* TTBR0 */ /* TTBR0 */
mm = current->active_mm; mm = current->active_mm;
if (mm == &init_mm) { if (mm == &init_mm) {
@ -149,7 +162,7 @@ void show_pte(unsigned long addr)
addr); addr);
return; return;
} }
} else if (addr >= VA_START) { } else if (is_ttbr1_addr(addr)) {
/* TTBR1 */ /* TTBR1 */
mm = &init_mm; mm = &init_mm;
} else { } else {
@ -254,7 +267,7 @@ static inline bool is_el1_permission_fault(unsigned long addr, unsigned int esr,
if (fsc_type == ESR_ELx_FSC_PERM) if (fsc_type == ESR_ELx_FSC_PERM)
return true; return true;
if (addr < TASK_SIZE && system_uses_ttbr0_pan()) if (is_ttbr0_addr(addr) && system_uses_ttbr0_pan())
return fsc_type == ESR_ELx_FSC_FAULT && return fsc_type == ESR_ELx_FSC_FAULT &&
(regs->pstate & PSR_PAN_BIT); (regs->pstate & PSR_PAN_BIT);
@ -319,7 +332,7 @@ static void set_thread_esr(unsigned long address, unsigned int esr)
* type", so we ignore this wrinkle and just return the translation * type", so we ignore this wrinkle and just return the translation
* fault.) * fault.)
*/ */
if (current->thread.fault_address >= TASK_SIZE) { if (!is_ttbr0_addr(current->thread.fault_address)) {
switch (ESR_ELx_EC(esr)) { switch (ESR_ELx_EC(esr)) {
case ESR_ELx_EC_DABT_LOW: case ESR_ELx_EC_DABT_LOW:
/* /*
@ -455,7 +468,7 @@ static int __kprobes do_page_fault(unsigned long addr, unsigned int esr,
mm_flags |= FAULT_FLAG_WRITE; mm_flags |= FAULT_FLAG_WRITE;
} }
if (addr < TASK_SIZE && is_el1_permission_fault(addr, esr, regs)) { if (is_ttbr0_addr(addr) && is_el1_permission_fault(addr, esr, regs)) {
/* regs->orig_addr_limit may be 0 if we entered from EL0 */ /* regs->orig_addr_limit may be 0 if we entered from EL0 */
if (regs->orig_addr_limit == KERNEL_DS) if (regs->orig_addr_limit == KERNEL_DS)
die_kernel_fault("access to user memory with fs=KERNEL_DS", die_kernel_fault("access to user memory with fs=KERNEL_DS",
@ -603,7 +616,7 @@ static int __kprobes do_translation_fault(unsigned long addr,
unsigned int esr, unsigned int esr,
struct pt_regs *regs) struct pt_regs *regs)
{ {
if (addr < TASK_SIZE) if (is_ttbr0_addr(addr))
return do_page_fault(addr, esr, regs); return do_page_fault(addr, esr, regs);
do_bad_area(addr, esr, regs); do_bad_area(addr, esr, regs);
@ -758,7 +771,7 @@ asmlinkage void __exception do_el0_ia_bp_hardening(unsigned long addr,
* re-enabled IRQs. If the address is a kernel address, apply * re-enabled IRQs. If the address is a kernel address, apply
* BP hardening prior to enabling IRQs and pre-emption. * BP hardening prior to enabling IRQs and pre-emption.
*/ */
if (addr > TASK_SIZE) if (!is_ttbr0_addr(addr))
arm64_apply_bp_hardening(); arm64_apply_bp_hardening();
local_daif_restore(DAIF_PROCCTX); local_daif_restore(DAIF_PROCCTX);
@ -771,7 +784,7 @@ asmlinkage void __exception do_sp_pc_abort(unsigned long addr,
struct pt_regs *regs) struct pt_regs *regs)
{ {
if (user_mode(regs)) { if (user_mode(regs)) {
if (instruction_pointer(regs) > TASK_SIZE) if (!is_ttbr0_addr(instruction_pointer(regs)))
arm64_apply_bp_hardening(); arm64_apply_bp_hardening();
local_daif_restore(DAIF_PROCCTX); local_daif_restore(DAIF_PROCCTX);
} }
@ -825,7 +838,7 @@ asmlinkage int __exception do_debug_exception(unsigned long addr,
if (interrupts_enabled(regs)) if (interrupts_enabled(regs))
trace_hardirqs_off(); trace_hardirqs_off();
if (user_mode(regs) && instruction_pointer(regs) > TASK_SIZE) if (user_mode(regs) && !is_ttbr0_addr(instruction_pointer(regs)))
arm64_apply_bp_hardening(); arm64_apply_bp_hardening();
if (!inf->fn(addr, esr, regs)) { if (!inf->fn(addr, esr, regs)) {

57
arch/arm64/mm/kasan_init.c
View File

@ -39,7 +39,15 @@ static phys_addr_t __init kasan_alloc_zeroed_page(int node)
{ {
void *p = memblock_alloc_try_nid(PAGE_SIZE, PAGE_SIZE, void *p = memblock_alloc_try_nid(PAGE_SIZE, PAGE_SIZE,
__pa(MAX_DMA_ADDRESS), __pa(MAX_DMA_ADDRESS),
MEMBLOCK_ALLOC_ACCESSIBLE, node); MEMBLOCK_ALLOC_KASAN, node);
return __pa(p);
}
static phys_addr_t __init kasan_alloc_raw_page(int node)
{
void *p = memblock_alloc_try_nid_raw(PAGE_SIZE, PAGE_SIZE,
__pa(MAX_DMA_ADDRESS),
MEMBLOCK_ALLOC_KASAN, node);
return __pa(p); return __pa(p);
} }
@ -47,8 +55,9 @@ static pte_t *__init kasan_pte_offset(pmd_t *pmdp, unsigned long addr, int node,
bool early) bool early)
{ {
if (pmd_none(READ_ONCE(*pmdp))) { if (pmd_none(READ_ONCE(*pmdp))) {
phys_addr_t pte_phys = early ? __pa_symbol(kasan_zero_pte) phys_addr_t pte_phys = early ?
: kasan_alloc_zeroed_page(node); __pa_symbol(kasan_early_shadow_pte)
: kasan_alloc_zeroed_page(node);
__pmd_populate(pmdp, pte_phys, PMD_TYPE_TABLE); __pmd_populate(pmdp, pte_phys, PMD_TYPE_TABLE);
} }
@ -60,8 +69,9 @@ static pmd_t *__init kasan_pmd_offset(pud_t *pudp, unsigned long addr, int node,
bool early) bool early)
{ {
if (pud_none(READ_ONCE(*pudp))) { if (pud_none(READ_ONCE(*pudp))) {
phys_addr_t pmd_phys = early ? __pa_symbol(kasan_zero_pmd) phys_addr_t pmd_phys = early ?
: kasan_alloc_zeroed_page(node); __pa_symbol(kasan_early_shadow_pmd)
: kasan_alloc_zeroed_page(node);
__pud_populate(pudp, pmd_phys, PMD_TYPE_TABLE); __pud_populate(pudp, pmd_phys, PMD_TYPE_TABLE);
} }
@ -72,8 +82,9 @@ static pud_t *__init kasan_pud_offset(pgd_t *pgdp, unsigned long addr, int node,
bool early) bool early)
{ {
if (pgd_none(READ_ONCE(*pgdp))) { if (pgd_none(READ_ONCE(*pgdp))) {
phys_addr_t pud_phys = early ? __pa_symbol(kasan_zero_pud) phys_addr_t pud_phys = early ?
: kasan_alloc_zeroed_page(node); __pa_symbol(kasan_early_shadow_pud)
: kasan_alloc_zeroed_page(node);
__pgd_populate(pgdp, pud_phys, PMD_TYPE_TABLE); __pgd_populate(pgdp, pud_phys, PMD_TYPE_TABLE);
} }
@ -87,8 +98,11 @@ static void __init kasan_pte_populate(pmd_t *pmdp, unsigned long addr,
pte_t *ptep = kasan_pte_offset(pmdp, addr, node, early); pte_t *ptep = kasan_pte_offset(pmdp, addr, node, early);
do { do {
phys_addr_t page_phys = early ? __pa_symbol(kasan_zero_page) phys_addr_t page_phys = early ?
: kasan_alloc_zeroed_page(node); __pa_symbol(kasan_early_shadow_page)
: kasan_alloc_raw_page(node);
if (!early)
memset(__va(page_phys), KASAN_SHADOW_INIT, PAGE_SIZE);
next = addr + PAGE_SIZE; next = addr + PAGE_SIZE;
set_pte(ptep, pfn_pte(__phys_to_pfn(page_phys), PAGE_KERNEL)); set_pte(ptep, pfn_pte(__phys_to_pfn(page_phys), PAGE_KERNEL));
} while (ptep++, addr = next, addr != end && pte_none(READ_ONCE(*ptep))); } while (ptep++, addr = next, addr != end && pte_none(READ_ONCE(*ptep)));
@ -205,14 +219,14 @@ void __init kasan_init(void)
kasan_map_populate(kimg_shadow_start, kimg_shadow_end, kasan_map_populate(kimg_shadow_start, kimg_shadow_end,
early_pfn_to_nid(virt_to_pfn(lm_alias(_text)))); early_pfn_to_nid(virt_to_pfn(lm_alias(_text))));
kasan_populate_zero_shadow((void *)KASAN_SHADOW_START, kasan_populate_early_shadow((void *)KASAN_SHADOW_START,
(void *)mod_shadow_start); (void *)mod_shadow_start);
kasan_populate_zero_shadow((void *)kimg_shadow_end, kasan_populate_early_shadow((void *)kimg_shadow_end,
kasan_mem_to_shadow((void *)PAGE_OFFSET)); kasan_mem_to_shadow((void *)PAGE_OFFSET));
if (kimg_shadow_start > mod_shadow_end) if (kimg_shadow_start > mod_shadow_end)
kasan_populate_zero_shadow((void *)mod_shadow_end, kasan_populate_early_shadow((void *)mod_shadow_end,
(void *)kimg_shadow_start); (void *)kimg_shadow_start);
for_each_memblock(memory, reg) { for_each_memblock(memory, reg) {
void *start = (void *)__phys_to_virt(reg->base); void *start = (void *)__phys_to_virt(reg->base);
@ -227,16 +241,19 @@ void __init kasan_init(void)
} }
/* /*
* KAsan may reuse the contents of kasan_zero_pte directly, so we * KAsan may reuse the contents of kasan_early_shadow_pte directly,
* should make sure that it maps the zero page read-only. * so we should make sure that it maps the zero page read-only.
*/ */
for (i = 0; i < PTRS_PER_PTE; i++) for (i = 0; i < PTRS_PER_PTE; i++)
set_pte(&kasan_zero_pte[i], set_pte(&kasan_early_shadow_pte[i],
pfn_pte(sym_to_pfn(kasan_zero_page), PAGE_KERNEL_RO)); pfn_pte(sym_to_pfn(kasan_early_shadow_page),
PAGE_KERNEL_RO));
memset(kasan_zero_page, 0, PAGE_SIZE); memset(kasan_early_shadow_page, KASAN_SHADOW_INIT, PAGE_SIZE);
cpu_replace_ttbr1(lm_alias(swapper_pg_dir)); cpu_replace_ttbr1(lm_alias(swapper_pg_dir));
kasan_init_tags();
/* At this point kasan is fully initialized. Enable error messages */ /* At this point kasan is fully initialized. Enable error messages */
init_task.kasan_depth = 0; init_task.kasan_depth = 0;
pr_info("KernelAddressSanitizer initialized\n"); pr_info("KernelAddressSanitizer initialized\n");

13
arch/arm64/mm/mmu.c
View File

@ -1003,10 +1003,8 @@ int pmd_free_pte_page(pmd_t *pmdp, unsigned long addr)
pmd = READ_ONCE(*pmdp); pmd = READ_ONCE(*pmdp);
if (!pmd_present(pmd))
return 1;
if (!pmd_table(pmd)) { if (!pmd_table(pmd)) {
VM_WARN_ON(!pmd_table(pmd)); VM_WARN_ON(1);
return 1; return 1;
} }
@ -1026,10 +1024,8 @@ int pud_free_pmd_page(pud_t *pudp, unsigned long addr)
pud = READ_ONCE(*pudp); pud = READ_ONCE(*pudp);
if (!pud_present(pud))
return 1;
if (!pud_table(pud)) { if (!pud_table(pud)) {
VM_WARN_ON(!pud_table(pud)); VM_WARN_ON(1);
return 1; return 1;
} }
@ -1047,6 +1043,11 @@ int pud_free_pmd_page(pud_t *pudp, unsigned long addr)
return 1; return 1;
} }
int p4d_free_pud_page(p4d_t *p4d, unsigned long addr)
{
return 0; /* Don't attempt a block mapping */
}
#ifdef CONFIG_MEMORY_HOTPLUG #ifdef CONFIG_MEMORY_HOTPLUG
int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap, int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap,
bool want_memblock) bool want_memblock)

8
arch/arm64/mm/proc.S
View File

@ -47,6 +47,12 @@
/* PTWs cacheable, inner/outer WBWA */ /* PTWs cacheable, inner/outer WBWA */
#define TCR_CACHE_FLAGS TCR_IRGN_WBWA | TCR_ORGN_WBWA #define TCR_CACHE_FLAGS TCR_IRGN_WBWA | TCR_ORGN_WBWA
#ifdef CONFIG_KASAN_SW_TAGS
#define TCR_KASAN_FLAGS TCR_TBI1
#else
#define TCR_KASAN_FLAGS 0
#endif
#define MAIR(attr, mt) ((attr) << ((mt) * 8)) #define MAIR(attr, mt) ((attr) << ((mt) * 8))
/* /*
@ -449,7 +455,7 @@ ENTRY(__cpu_setup)
*/ */
ldr x10, =TCR_TxSZ(VA_BITS) | TCR_CACHE_FLAGS | TCR_SMP_FLAGS | \ ldr x10, =TCR_TxSZ(VA_BITS) | TCR_CACHE_FLAGS | TCR_SMP_FLAGS | \
TCR_TG_FLAGS | TCR_KASLR_FLAGS | TCR_ASID16 | \ TCR_TG_FLAGS | TCR_KASLR_FLAGS | TCR_ASID16 | \
TCR_TBI0 | TCR_A1 TCR_TBI0 | TCR_A1 | TCR_KASAN_FLAGS
#ifdef CONFIG_ARM64_USER_VA_BITS_52 #ifdef CONFIG_ARM64_USER_VA_BITS_52
ldr_l x9, vabits_user ldr_l x9, vabits_user

4
arch/csky/mm/init.c
View File

@ -71,7 +71,7 @@ void free_initrd_mem(unsigned long start, unsigned long end)
ClearPageReserved(virt_to_page(start)); ClearPageReserved(virt_to_page(start));
init_page_count(virt_to_page(start)); init_page_count(virt_to_page(start));
free_page(start); free_page(start);
totalram_pages++; totalram_pages_inc();
} }
} }
#endif #endif
@ -88,7 +88,7 @@ void free_initmem(void)
ClearPageReserved(virt_to_page(addr)); ClearPageReserved(virt_to_page(addr));
init_page_count(virt_to_page(addr)); init_page_count(virt_to_page(addr));
free_page(addr); free_page(addr);
totalram_pages++; totalram_pages_inc();
addr += PAGE_SIZE; addr += PAGE_SIZE;
} }

2
arch/ia64/mm/init.c
View File

@ -658,7 +658,7 @@ int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap,
} }
#ifdef CONFIG_MEMORY_HOTREMOVE #ifdef CONFIG_MEMORY_HOTREMOVE
int arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap) int arch_remove_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap)
{ {
unsigned long start_pfn = start >> PAGE_SHIFT; unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT; unsigned long nr_pages = size >> PAGE_SHIFT;

3
arch/powerpc/mm/mem.c
View File

@ -139,7 +139,8 @@ int __meminit arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *
} }
#ifdef CONFIG_MEMORY_HOTREMOVE #ifdef CONFIG_MEMORY_HOTREMOVE
int __meminit arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap) int __meminit arch_remove_memory(int nid, u64 start, u64 size,
struct vmem_altmap *altmap)
{ {
unsigned long start_pfn = start >> PAGE_SHIFT; unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT; unsigned long nr_pages = size >> PAGE_SHIFT;

10
arch/powerpc/platforms/pseries/cmm.c
View File

@ -208,7 +208,7 @@ static long cmm_alloc_pages(long nr)
pa->page[pa->index++] = addr; pa->page[pa->index++] = addr;
loaned_pages++; loaned_pages++;
totalram_pages--; totalram_pages_dec();
spin_unlock(&cmm_lock); spin_unlock(&cmm_lock);
nr--; nr--;
} }
@ -247,7 +247,7 @@ static long cmm_free_pages(long nr)
free_page(addr); free_page(addr);
loaned_pages--; loaned_pages--;
nr--; nr--;
totalram_pages++; totalram_pages_inc();
} }
spin_unlock(&cmm_lock); spin_unlock(&cmm_lock);
cmm_dbg("End request with %ld pages unfulfilled\n", nr); cmm_dbg("End request with %ld pages unfulfilled\n", nr);
@ -291,7 +291,7 @@ static void cmm_get_mpp(void)
int rc; int rc;
struct hvcall_mpp_data mpp_data; struct hvcall_mpp_data mpp_data;
signed long active_pages_target, page_loan_request, target; signed long active_pages_target, page_loan_request, target;
signed long total_pages = totalram_pages + loaned_pages; signed long total_pages = totalram_pages() + loaned_pages;
signed long min_mem_pages = (min_mem_mb * 1024 * 1024) / PAGE_SIZE; signed long min_mem_pages = (min_mem_mb * 1024 * 1024) / PAGE_SIZE;
rc = h_get_mpp(&mpp_data); rc = h_get_mpp(&mpp_data);
@ -322,7 +322,7 @@ static void cmm_get_mpp(void)
cmm_dbg("delta = %ld, loaned = %lu, target = %lu, oom = %lu, totalram = %lu\n", cmm_dbg("delta = %ld, loaned = %lu, target = %lu, oom = %lu, totalram = %lu\n",
page_loan_request, loaned_pages, loaned_pages_target, page_loan_request, loaned_pages, loaned_pages_target,
oom_freed_pages, totalram_pages); oom_freed_pages, totalram_pages());
} }
static struct notifier_block cmm_oom_nb = { static struct notifier_block cmm_oom_nb = {
@ -581,7 +581,7 @@ static int cmm_mem_going_offline(void *arg)
free_page(pa_curr->page[idx]); free_page(pa_curr->page[idx]);
freed++; freed++;
loaned_pages--; loaned_pages--;
totalram_pages++; totalram_pages_inc();
pa_curr->page[idx] = pa_last->page[--pa_last->index]; pa_curr->page[idx] = pa_last->page[--pa_last->index];
if (pa_last->index == 0) { if (pa_last->index == 0) {
if (pa_curr == pa_last) if (pa_curr == pa_last)

17
arch/s390/mm/dump_pagetables.c
View File

@ -111,11 +111,12 @@ static void note_page(struct seq_file *m, struct pg_state *st,
} }
#ifdef CONFIG_KASAN #ifdef CONFIG_KASAN
static void note_kasan_zero_page(struct seq_file *m, struct pg_state *st) static void note_kasan_early_shadow_page(struct seq_file *m,
struct pg_state *st)
{ {
unsigned int prot; unsigned int prot;
prot = pte_val(*kasan_zero_pte) & prot = pte_val(*kasan_early_shadow_pte) &
(_PAGE_PROTECT | _PAGE_INVALID | _PAGE_NOEXEC); (_PAGE_PROTECT | _PAGE_INVALID | _PAGE_NOEXEC);
note_page(m, st, prot, 4); note_page(m, st, prot, 4);
} }
@ -154,8 +155,8 @@ static void walk_pmd_level(struct seq_file *m, struct pg_state *st,
int i; int i;
#ifdef CONFIG_KASAN #ifdef CONFIG_KASAN
if ((pud_val(*pud) & PAGE_MASK) == __pa(kasan_zero_pmd)) { if ((pud_val(*pud) & PAGE_MASK) == __pa(kasan_early_shadow_pmd)) {
note_kasan_zero_page(m, st); note_kasan_early_shadow_page(m, st);
return; return;
} }
#endif #endif
@ -185,8 +186,8 @@ static void walk_pud_level(struct seq_file *m, struct pg_state *st,
int i; int i;
#ifdef CONFIG_KASAN #ifdef CONFIG_KASAN
if ((p4d_val(*p4d) & PAGE_MASK) == __pa(kasan_zero_pud)) { if ((p4d_val(*p4d) & PAGE_MASK) == __pa(kasan_early_shadow_pud)) {
note_kasan_zero_page(m, st); note_kasan_early_shadow_page(m, st);
return; return;
} }
#endif #endif
@ -215,8 +216,8 @@ static void walk_p4d_level(struct seq_file *m, struct pg_state *st,
int i; int i;
#ifdef CONFIG_KASAN #ifdef CONFIG_KASAN
if ((pgd_val(*pgd) & PAGE_MASK) == __pa(kasan_zero_p4d)) { if ((pgd_val(*pgd) & PAGE_MASK) == __pa(kasan_early_shadow_p4d)) {
note_kasan_zero_page(m, st); note_kasan_early_shadow_page(m, st);
return; return;
} }
#endif #endif

4
arch/s390/mm/init.c
View File

@ -59,7 +59,7 @@ static void __init setup_zero_pages(void)
order = 7; order = 7;
/* Limit number of empty zero pages for small memory sizes */ /* Limit number of empty zero pages for small memory sizes */
while (order > 2 && (totalram_pages >> 10) < (1UL << order)) while (order > 2 && (totalram_pages() >> 10) < (1UL << order))
order--; order--;
empty_zero_page = __get_free_pages(GFP_KERNEL | __GFP_ZERO, order); empty_zero_page = __get_free_pages(GFP_KERNEL | __GFP_ZERO, order);
@ -242,7 +242,7 @@ int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap,
} }
#ifdef CONFIG_MEMORY_HOTREMOVE #ifdef CONFIG_MEMORY_HOTREMOVE
int arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap) int arch_remove_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap)
{ {
/* /*
* There is no hardware or firmware interface which could trigger a * There is no hardware or firmware interface which could trigger a

33
arch/s390/mm/kasan_init.c
View File

@ -107,7 +107,8 @@ static void __init kasan_early_vmemmap_populate(unsigned long address,
if (mode == POPULATE_ZERO_SHADOW && if (mode == POPULATE_ZERO_SHADOW &&
IS_ALIGNED(address, PGDIR_SIZE) && IS_ALIGNED(address, PGDIR_SIZE) &&
end - address >= PGDIR_SIZE) { end - address >= PGDIR_SIZE) {
pgd_populate(&init_mm, pg_dir, kasan_zero_p4d); pgd_populate(&init_mm, pg_dir,
kasan_early_shadow_p4d);
address = (address + PGDIR_SIZE) & PGDIR_MASK; address = (address + PGDIR_SIZE) & PGDIR_MASK;
continue; continue;
} }
@ -120,7 +121,8 @@ static void __init kasan_early_vmemmap_populate(unsigned long address,
if (mode == POPULATE_ZERO_SHADOW && if (mode == POPULATE_ZERO_SHADOW &&
IS_ALIGNED(address, P4D_SIZE) && IS_ALIGNED(address, P4D_SIZE) &&
end - address >= P4D_SIZE) { end - address >= P4D_SIZE) {
p4d_populate(&init_mm, p4_dir, kasan_zero_pud); p4d_populate(&init_mm, p4_dir,
kasan_early_shadow_pud);
address = (address + P4D_SIZE) & P4D_MASK; address = (address + P4D_SIZE) & P4D_MASK;
continue; continue;
} }
@ -133,7 +135,8 @@ static void __init kasan_early_vmemmap_populate(unsigned long address,
if (mode == POPULATE_ZERO_SHADOW && if (mode == POPULATE_ZERO_SHADOW &&
IS_ALIGNED(address, PUD_SIZE) && IS_ALIGNED(address, PUD_SIZE) &&
end - address >= PUD_SIZE) { end - address >= PUD_SIZE) {
pud_populate(&init_mm, pu_dir, kasan_zero_pmd); pud_populate(&init_mm, pu_dir,
kasan_early_shadow_pmd);
address = (address + PUD_SIZE) & PUD_MASK; address = (address + PUD_SIZE) & PUD_MASK;
continue; continue;
} }
@ -146,7 +149,8 @@ static void __init kasan_early_vmemmap_populate(unsigned long address,
if (mode == POPULATE_ZERO_SHADOW && if (mode == POPULATE_ZERO_SHADOW &&
IS_ALIGNED(address, PMD_SIZE) && IS_ALIGNED(address, PMD_SIZE) &&
end - address >= PMD_SIZE) { end - address >= PMD_SIZE) {
pmd_populate(&init_mm, pm_dir, kasan_zero_pte); pmd_populate(&init_mm, pm_dir,
kasan_early_shadow_pte);
address = (address + PMD_SIZE) & PMD_MASK; address = (address + PMD_SIZE) & PMD_MASK;
continue; continue;
} }
@ -188,7 +192,7 @@ static void __init kasan_early_vmemmap_populate(unsigned long address,
pte_val(*pt_dir) = __pa(page) | pgt_prot; pte_val(*pt_dir) = __pa(page) | pgt_prot;
break; break;
case POPULATE_ZERO_SHADOW: case POPULATE_ZERO_SHADOW:
page = kasan_zero_page; page = kasan_early_shadow_page;
pte_val(*pt_dir) = __pa(page) | pgt_prot_zero; pte_val(*pt_dir) = __pa(page) | pgt_prot_zero;
break; break;
} }
@ -256,14 +260,14 @@ void __init kasan_early_init(void)
unsigned long vmax; unsigned long vmax;
unsigned long pgt_prot = pgprot_val(PAGE_KERNEL_RO); unsigned long pgt_prot = pgprot_val(PAGE_KERNEL_RO);
pte_t pte_z; pte_t pte_z;
pmd_t pmd_z = __pmd(__pa(kasan_zero_pte) | _SEGMENT_ENTRY); pmd_t pmd_z = __pmd(__pa(kasan_early_shadow_pte) | _SEGMENT_ENTRY);
pud_t pud_z = __pud(__pa(kasan_zero_pmd) | _REGION3_ENTRY); pud_t pud_z = __pud(__pa(kasan_early_shadow_pmd) | _REGION3_ENTRY);
p4d_t p4d_z = __p4d(__pa(kasan_zero_pud) | _REGION2_ENTRY); p4d_t p4d_z = __p4d(__pa(kasan_early_shadow_pud) | _REGION2_ENTRY);
kasan_early_detect_facilities(); kasan_early_detect_facilities();
if (!has_nx) if (!has_nx)
pgt_prot &= ~_PAGE_NOEXEC; pgt_prot &= ~_PAGE_NOEXEC;
pte_z = __pte(__pa(kasan_zero_page) | pgt_prot); pte_z = __pte(__pa(kasan_early_shadow_page) | pgt_prot);
memsize = get_mem_detect_end(); memsize = get_mem_detect_end();
if (!memsize) if (!memsize)
@ -292,10 +296,13 @@ void __init kasan_early_init(void)
} }
/* init kasan zero shadow */ /* init kasan zero shadow */
crst_table_init((unsigned long *)kasan_zero_p4d, p4d_val(p4d_z)); crst_table_init((unsigned long *)kasan_early_shadow_p4d,
crst_table_init((unsigned long *)kasan_zero_pud, pud_val(pud_z)); p4d_val(p4d_z));
crst_table_init((unsigned long *)kasan_zero_pmd, pmd_val(pmd_z)); crst_table_init((unsigned long *)kasan_early_shadow_pud,
memset64((u64 *)kasan_zero_pte, pte_val(pte_z), PTRS_PER_PTE); pud_val(pud_z));
crst_table_init((unsigned long *)kasan_early_shadow_pmd,
pmd_val(pmd_z));
memset64((u64 *)kasan_early_shadow_pte, pte_val(pte_z), PTRS_PER_PTE);
shadow_alloc_size = memsize >> KASAN_SHADOW_SCALE_SHIFT; shadow_alloc_size = memsize >> KASAN_SHADOW_SCALE_SHIFT;
pgalloc_low = round_up((unsigned long)_end, _SEGMENT_SIZE); pgalloc_low = round_up((unsigned long)_end, _SEGMENT_SIZE);

5
arch/sh/boards/board-apsh4a3a.c
View File

@ -1,13 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* ALPHAPROJECT AP-SH4A-3A Support. * ALPHAPROJECT AP-SH4A-3A Support.
* *
* Copyright (C) 2010 ALPHAPROJECT Co.,Ltd. * Copyright (C) 2010 ALPHAPROJECT Co.,Ltd.
* Copyright (C) 2008 Yoshihiro Shimoda * Copyright (C) 2008 Yoshihiro Shimoda
* Copyright (C) 2009 Paul Mundt * Copyright (C) 2009 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>

5
arch/sh/boards/board-apsh4ad0a.c
View File

@ -1,13 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* ALPHAPROJECT AP-SH4AD-0A Support. * ALPHAPROJECT AP-SH4AD-0A Support.
* *
* Copyright (C) 2010 ALPHAPROJECT Co.,Ltd. * Copyright (C) 2010 ALPHAPROJECT Co.,Ltd.
* Copyright (C) 2010 Matt Fleming * Copyright (C) 2010 Matt Fleming
* Copyright (C) 2010 Paul Mundt * Copyright (C) 2010 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>

15
arch/sh/boards/board-edosk7760.c
View File

@ -1,22 +1,9 @@
// SPDX-License-Identifier: GPL-2.0+
/* /*
* Renesas Europe EDOSK7760 Board Support * Renesas Europe EDOSK7760 Board Support
* *
* Copyright (C) 2008 SPES Societa' Progettazione Elettronica e Software Ltd. * Copyright (C) 2008 SPES Societa' Progettazione Elettronica e Software Ltd.
* Author: Luca Santini <luca.santini@spesonline.com> * Author: Luca Santini <luca.santini@spesonline.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/types.h> #include <linux/types.h>

5
arch/sh/boards/board-espt.c
View File

@ -1,12 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* Data Technology Inc. ESPT-GIGA board support * Data Technology Inc. ESPT-GIGA board support
* *
* Copyright (C) 2008, 2009 Renesas Solutions Corp. * Copyright (C) 2008, 2009 Renesas Solutions Corp.
* Copyright (C) 2008, 2009 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> * Copyright (C) 2008, 2009 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>

5
arch/sh/boards/board-magicpanelr2.c
View File

@ -1,13 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* linux/arch/sh/boards/magicpanel/setup.c * linux/arch/sh/boards/magicpanel/setup.c
* *
* Copyright (C) 2007 Markus Brunner, Mark Jonas * Copyright (C) 2007 Markus Brunner, Mark Jonas
* *
* Magic Panel Release 2 board setup * Magic Panel Release 2 board setup
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/irq.h> #include <linux/irq.h>

5
arch/sh/boards/board-sh7757lcr.c
View File

@ -1,11 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* Renesas R0P7757LC0012RL Support. * Renesas R0P7757LC0012RL Support.
* *
* Copyright (C) 2009 - 2010 Renesas Solutions Corp. * Copyright (C) 2009 - 2010 Renesas Solutions Corp.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>

5
arch/sh/boards/board-sh7785lcr.c
View File

@ -1,12 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* Renesas Technology Corp. R0P7785LC0011RL Support. * Renesas Technology Corp. R0P7785LC0011RL Support.
* *
* Copyright (C) 2008 Yoshihiro Shimoda * Copyright (C) 2008 Yoshihiro Shimoda
* Copyright (C) 2009 Paul Mundt * Copyright (C) 2009 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>

5
arch/sh/boards/board-titan.c
View File

@ -1,11 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* arch/sh/boards/titan/setup.c - Setup for Titan * arch/sh/boards/titan/setup.c - Setup for Titan
* *
* Copyright (C) 2006 Jamie Lenehan * Copyright (C) 2006 Jamie Lenehan
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/irq.h> #include <linux/irq.h>

5
arch/sh/boards/board-urquell.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* Renesas Technology Corp. SH7786 Urquell Support. * Renesas Technology Corp. SH7786 Urquell Support.
* *
@ -6,10 +7,6 @@
* *
* Based on board-sh7785lcr.c * Based on board-sh7785lcr.c
* Copyright (C) 2008 Yoshihiro Shimoda * Copyright (C) 2008 Yoshihiro Shimoda
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>

1
arch/sh/boards/mach-ap325rxa/Makefile
View File

@ -1,2 +1,3 @@
# SPDX-License-Identifier: GPL-2.0
obj-y := setup.o sdram.o obj-y := setup.o sdram.o

7
arch/sh/boards/mach-ap325rxa/sdram.S
View File

@ -1,11 +1,8 @@
/* /* SPDX-License-Identifier: GPL-2.0
*
* AP325RXA sdram self/auto-refresh setup code * AP325RXA sdram self/auto-refresh setup code
* *
* Copyright (C) 2009 Magnus Damm * Copyright (C) 2009 Magnus Damm
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/sys.h> #include <linux/sys.h>

1
arch/sh/boards/mach-cayman/Makefile
View File

@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
# #
# Makefile for the Hitachi Cayman specific parts of the kernel # Makefile for the Hitachi Cayman specific parts of the kernel
# #

5
arch/sh/boards/mach-cayman/irq.c
View File

@ -1,13 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* arch/sh/mach-cayman/irq.c - SH-5 Cayman Interrupt Support * arch/sh/mach-cayman/irq.c - SH-5 Cayman Interrupt Support
* *
* This file handles the board specific parts of the Cayman interrupt system * This file handles the board specific parts of the Cayman interrupt system
* *
* Copyright (C) 2002 Stuart Menefy * Copyright (C) 2002 Stuart Menefy
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/io.h> #include <linux/io.h>
#include <linux/irq.h> #include <linux/irq.h>

5
arch/sh/boards/mach-cayman/panic.c
View File

@ -1,9 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* Copyright (C) 2003 Richard Curnow, SuperH UK Limited * Copyright (C) 2003 Richard Curnow, SuperH UK Limited
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/kernel.h> #include <linux/kernel.h>

5
arch/sh/boards/mach-cayman/setup.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* arch/sh/mach-cayman/setup.c * arch/sh/mach-cayman/setup.c
* *
@ -5,10 +6,6 @@
* *
* Copyright (C) 2002 David J. Mckay & Benedict Gaster * Copyright (C) 2002 David J. Mckay & Benedict Gaster
* Copyright (C) 2003 - 2007 Paul Mundt * Copyright (C) 2003 - 2007 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/io.h> #include <linux/io.h>

1
arch/sh/boards/mach-dreamcast/Makefile
View File

@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
# #
# Makefile for the Sega Dreamcast specific parts of the kernel # Makefile for the Sega Dreamcast specific parts of the kernel
# #

2
arch/sh/boards/mach-dreamcast/irq.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* arch/sh/boards/dreamcast/irq.c * arch/sh/boards/dreamcast/irq.c
* *
@ -6,7 +7,6 @@
* Copyright (c) 2001, 2002 M. R. Brown <mrbrown@0xd6.org> * Copyright (c) 2001, 2002 M. R. Brown <mrbrown@0xd6.org>
* *
* This file is part of the LinuxDC project (www.linuxdc.org) * This file is part of the LinuxDC project (www.linuxdc.org)
* Released under the terms of the GNU GPL v2.0
*/ */
#include <linux/irq.h> #include <linux/irq.h>
#include <linux/io.h> #include <linux/io.h>

4
arch/sh/boards/mach-dreamcast/rtc.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* arch/sh/boards/dreamcast/rtc.c * arch/sh/boards/dreamcast/rtc.c
* *
@ -5,9 +6,6 @@
* *
* Copyright (c) 2001, 2002 M. R. Brown <mrbrown@0xd6.org> * Copyright (c) 2001, 2002 M. R. Brown <mrbrown@0xd6.org>
* Copyright (c) 2002 Paul Mundt <lethal@chaoticdreams.org> * Copyright (c) 2002 Paul Mundt <lethal@chaoticdreams.org>
*
* Released under the terms of the GNU GPL v2.0.
*
*/ */
#include <linux/time.h> #include <linux/time.h>

3
arch/sh/boards/mach-dreamcast/setup.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* arch/sh/boards/dreamcast/setup.c * arch/sh/boards/dreamcast/setup.c
* *
@ -8,8 +9,6 @@
* *
* This file is part of the LinuxDC project (www.linuxdc.org) * This file is part of the LinuxDC project (www.linuxdc.org)
* *
* Released under the terms of the GNU GPL v2.0.
*
* This file originally bore the message (with enclosed-$): * This file originally bore the message (with enclosed-$):
* Id: setup_dc.c,v 1.5 2001/05/24 05:09:16 mrbrown Exp * Id: setup_dc.c,v 1.5 2001/05/24 05:09:16 mrbrown Exp
* SEGA Dreamcast support * SEGA Dreamcast support

1
arch/sh/boards/mach-ecovec24/Makefile
View File

@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
# #
# Makefile for the R0P7724LC0011/21RL (EcoVec) # Makefile for the R0P7724LC0011/21RL (EcoVec)
# #

7
arch/sh/boards/mach-ecovec24/sdram.S
View File

@ -1,11 +1,8 @@
/* /* SPDX-License-Identifier: GPL-2.0
*
* Ecovec24 sdram self/auto-refresh setup code * Ecovec24 sdram self/auto-refresh setup code
* *
* Copyright (C) 2009 Magnus Damm * Copyright (C) 2009 Magnus Damm
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/sys.h> #include <linux/sys.h>

5
arch/sh/boards/mach-ecovec24/setup.c
View File

@ -1,11 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* Copyright (C) 2009 Renesas Solutions Corp. * Copyright (C) 2009 Renesas Solutions Corp.
* *
* Kuninori Morimoto <morimoto.kuninori@renesas.com> * Kuninori Morimoto <morimoto.kuninori@renesas.com>
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <asm/clock.h> #include <asm/clock.h>
#include <asm/heartbeat.h> #include <asm/heartbeat.h>

5
arch/sh/boards/mach-highlander/irq-r7780mp.c
View File

@ -1,13 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* Renesas Solutions Highlander R7780MP Support. * Renesas Solutions Highlander R7780MP Support.
* *
* Copyright (C) 2002 Atom Create Engineering Co., Ltd. * Copyright (C) 2002 Atom Create Engineering Co., Ltd.
* Copyright (C) 2006 Paul Mundt * Copyright (C) 2006 Paul Mundt
* Copyright (C) 2007 Magnus Damm * Copyright (C) 2007 Magnus Damm
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/irq.h> #include <linux/irq.h>

5
arch/sh/boards/mach-highlander/irq-r7780rp.c
View File

@ -1,13 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* Renesas Solutions Highlander R7780RP-1 Support. * Renesas Solutions Highlander R7780RP-1 Support.
* *
* Copyright (C) 2002 Atom Create Engineering Co., Ltd. * Copyright (C) 2002 Atom Create Engineering Co., Ltd.
* Copyright (C) 2006 Paul Mundt * Copyright (C) 2006 Paul Mundt
* Copyright (C) 2008 Magnus Damm * Copyright (C) 2008 Magnus Damm
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/irq.h> #include <linux/irq.h>

5
arch/sh/boards/mach-highlander/irq-r7785rp.c
View File

@ -1,13 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* Renesas Solutions Highlander R7785RP Support. * Renesas Solutions Highlander R7785RP Support.
* *
* Copyright (C) 2002 Atom Create Engineering Co., Ltd. * Copyright (C) 2002 Atom Create Engineering Co., Ltd.
* Copyright (C) 2006 - 2008 Paul Mundt * Copyright (C) 2006 - 2008 Paul Mundt
* Copyright (C) 2007 Magnus Damm * Copyright (C) 2007 Magnus Damm
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/irq.h> #include <linux/irq.h>

5
arch/sh/boards/mach-highlander/pinmux-r7785rp.c
View File

@ -1,9 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* Copyright (C) 2008 Paul Mundt * Copyright (C) 2008 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/gpio.h> #include <linux/gpio.h>

5
arch/sh/boards/mach-highlander/psw.c
View File

@ -1,13 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* arch/sh/boards/renesas/r7780rp/psw.c * arch/sh/boards/renesas/r7780rp/psw.c
* *
* push switch support for RDBRP-1/RDBREVRP-1 debug boards. * push switch support for RDBRP-1/RDBREVRP-1 debug boards.
* *
* Copyright (C) 2006 Paul Mundt * Copyright (C) 2006 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/io.h> #include <linux/io.h>
#include <linux/module.h> #include <linux/module.h>

5
arch/sh/boards/mach-highlander/setup.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* arch/sh/boards/renesas/r7780rp/setup.c * arch/sh/boards/renesas/r7780rp/setup.c
* *
@ -8,10 +9,6 @@
* *
* This contains support for the R7780RP-1, R7780MP, and R7785RP * This contains support for the R7780RP-1, R7780MP, and R7785RP
* Highlander modules. * Highlander modules.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/io.h> #include <linux/io.h>

1
arch/sh/boards/mach-hp6xx/Makefile
View File

@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
# #
# Makefile for the HP6xx specific parts of the kernel # Makefile for the HP6xx specific parts of the kernel
# #

4
arch/sh/boards/mach-hp6xx/hp6xx_apm.c
View File

@ -1,11 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* bios-less APM driver for hp680 * bios-less APM driver for hp680
* *
* Copyright 2005 (c) Andriy Skulysh <askulysh@gmail.com> * Copyright 2005 (c) Andriy Skulysh <askulysh@gmail.com>
* Copyright 2008 (c) Kristoffer Ericson <kristoffer.ericson@gmail.com> * Copyright 2008 (c) Kristoffer Ericson <kristoffer.ericson@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License.
*/ */
#include <linux/module.h> #include <linux/module.h>
#include <linux/kernel.h> #include <linux/kernel.h>

4
arch/sh/boards/mach-hp6xx/pm.c
View File

@ -1,10 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* hp6x0 Power Management Routines * hp6x0 Power Management Routines
* *
* Copyright (c) 2006 Andriy Skulysh <askulsyh@gmail.com> * Copyright (c) 2006 Andriy Skulysh <askulsyh@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/suspend.h> #include <linux/suspend.h>

8
arch/sh/boards/mach-hp6xx/pm_wakeup.S
View File

@ -1,10 +1,6 @@
/* /* SPDX-License-Identifier: GPL-2.0
*
* Copyright (c) 2006 Andriy Skulysh <askulsyh@gmail.com> * Copyright (c) 2006 Andriy Skulysh <askulsyh@gmail.com>
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
*/ */
#include <linux/linkage.h> #include <linux/linkage.h>

4
arch/sh/boards/mach-hp6xx/setup.c
View File

@ -1,12 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* linux/arch/sh/boards/hp6xx/setup.c * linux/arch/sh/boards/hp6xx/setup.c
* *
* Copyright (C) 2002 Andriy Skulysh * Copyright (C) 2002 Andriy Skulysh
* Copyright (C) 2007 Kristoffer Ericson <Kristoffer_e1@hotmail.com> * Copyright (C) 2007 Kristoffer Ericson <Kristoffer_e1@hotmail.com>
* *
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*
* Setup code for HP620/HP660/HP680/HP690 (internal peripherials only) * Setup code for HP620/HP660/HP680/HP690 (internal peripherials only)
*/ */
#include <linux/types.h> #include <linux/types.h>

1
arch/sh/boards/mach-kfr2r09/Makefile
View File

@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
obj-y := setup.o sdram.o obj-y := setup.o sdram.o
ifneq ($(CONFIG_FB_SH_MOBILE_LCDC),) ifneq ($(CONFIG_FB_SH_MOBILE_LCDC),)
obj-y += lcd_wqvga.o obj-y += lcd_wqvga.o

5
arch/sh/boards/mach-kfr2r09/lcd_wqvga.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* KFR2R09 LCD panel support * KFR2R09 LCD panel support
* *
@ -5,10 +6,6 @@
* *
* Register settings based on the out-of-tree t33fb.c driver * Register settings based on the out-of-tree t33fb.c driver
* Copyright (C) 2008 Lineo Solutions, Inc. * Copyright (C) 2008 Lineo Solutions, Inc.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive for
* more details.
*/ */
#include <linux/delay.h> #include <linux/delay.h>

7
arch/sh/boards/mach-kfr2r09/sdram.S
View File

@ -1,11 +1,8 @@
/* /* SPDX-License-Identifier: GPL-2.0
*
* KFR2R09 sdram self/auto-refresh setup code * KFR2R09 sdram self/auto-refresh setup code
* *
* Copyright (C) 2009 Magnus Damm * Copyright (C) 2009 Magnus Damm
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/sys.h> #include <linux/sys.h>

3
arch/sh/boards/mach-kfr2r09/setup.c
View File

@ -25,7 +25,6 @@
#include <linux/memblock.h> #include <linux/memblock.h>
#include <linux/mfd/tmio.h> #include <linux/mfd/tmio.h>
#include <linux/mmc/host.h> #include <linux/mmc/host.h>
#include <linux/mtd/onenand.h>
#include <linux/mtd/physmap.h> #include <linux/mtd/physmap.h>
#include <linux/platform_data/lv5207lp.h> #include <linux/platform_data/lv5207lp.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
@ -478,7 +477,7 @@ extern char kfr2r09_sdram_leave_end;
static int __init kfr2r09_devices_setup(void) static int __init kfr2r09_devices_setup(void)
{ {
static struct clk *camera_clk; struct clk *camera_clk;
/* register board specific self-refresh code */ /* register board specific self-refresh code */
sh_mobile_register_self_refresh(SUSP_SH_STANDBY | SUSP_SH_SF | sh_mobile_register_self_refresh(SUSP_SH_STANDBY | SUSP_SH_SF |

1
arch/sh/boards/mach-landisk/Makefile
View File

@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
# #
# Makefile for I-O DATA DEVICE, INC. "LANDISK Series" # Makefile for I-O DATA DEVICE, INC. "LANDISK Series"
# #

6
arch/sh/boards/mach-landisk/gio.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* arch/sh/boards/landisk/gio.c - driver for landisk * arch/sh/boards/landisk/gio.c - driver for landisk
* *
@ -6,11 +7,6 @@
* *
* Copylight (C) 2006 kogiidena * Copylight (C) 2006 kogiidena
* Copylight (C) 2002 Atom Create Engineering Co., Ltd. * * Copylight (C) 2002 Atom Create Engineering Co., Ltd. *
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
*/ */
#include <linux/module.h> #include <linux/module.h>
#include <linux/init.h> #include <linux/init.h>

5
arch/sh/boards/mach-landisk/irq.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* arch/sh/boards/mach-landisk/irq.c * arch/sh/boards/mach-landisk/irq.c
* *
@ -8,10 +9,6 @@
* *
* Copyright (C) 2001 Ian da Silva, Jeremy Siegel * Copyright (C) 2001 Ian da Silva, Jeremy Siegel
* Based largely on io_se.c. * Based largely on io_se.c.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>

5
arch/sh/boards/mach-landisk/psw.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* arch/sh/boards/landisk/psw.c * arch/sh/boards/landisk/psw.c
* *
@ -5,10 +6,6 @@
* *
* Copyright (C) 2006-2007 Paul Mundt * Copyright (C) 2006-2007 Paul Mundt
* Copyright (C) 2007 kogiidena * Copyright (C) 2007 kogiidena
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/io.h> #include <linux/io.h>
#include <linux/init.h> #include <linux/init.h>

5
arch/sh/boards/mach-landisk/setup.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* arch/sh/boards/landisk/setup.c * arch/sh/boards/landisk/setup.c
* *
@ -7,10 +8,6 @@
* Copyright (C) 2002 Paul Mundt * Copyright (C) 2002 Paul Mundt
* Copylight (C) 2002 Atom Create Engineering Co., Ltd. * Copylight (C) 2002 Atom Create Engineering Co., Ltd.
* Copyright (C) 2005-2007 kogiidena * Copyright (C) 2005-2007 kogiidena
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>

1
arch/sh/boards/mach-lboxre2/Makefile
View File

@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
# #
# Makefile for the L-BOX RE2 specific parts of the kernel # Makefile for the L-BOX RE2 specific parts of the kernel
# Copyright (c) 2007 Nobuhiro Iwamatsu # Copyright (c) 2007 Nobuhiro Iwamatsu

6
arch/sh/boards/mach-lboxre2/irq.c
View File

@ -1,14 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* linux/arch/sh/boards/lboxre2/irq.c * linux/arch/sh/boards/lboxre2/irq.c
* *
* Copyright (C) 2007 Nobuhiro Iwamatsu * Copyright (C) 2007 Nobuhiro Iwamatsu
* *
* NTT COMWARE L-BOX RE2 Support. * NTT COMWARE L-BOX RE2 Support.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/interrupt.h> #include <linux/interrupt.h>

6
arch/sh/boards/mach-lboxre2/setup.c
View File

@ -1,14 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* linux/arch/sh/boards/lbox/setup.c * linux/arch/sh/boards/lbox/setup.c
* *
* Copyright (C) 2007 Nobuhiro Iwamatsu * Copyright (C) 2007 Nobuhiro Iwamatsu
* *
* NTT COMWARE L-BOX RE2 Support * NTT COMWARE L-BOX RE2 Support
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
*/ */
#include <linux/init.h> #include <linux/init.h>

1
arch/sh/boards/mach-microdev/Makefile
View File

@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
# #
# Makefile for the SuperH MicroDev specific parts of the kernel # Makefile for the SuperH MicroDev specific parts of the kernel
# #

5
arch/sh/boards/mach-microdev/fdc37c93xapm.c
View File

@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
*
* Setup for the SMSC FDC37C93xAPM * Setup for the SMSC FDC37C93xAPM
* *
* Copyright (C) 2003 Sean McGoogan (Sean.McGoogan@superh.com) * Copyright (C) 2003 Sean McGoogan (Sean.McGoogan@superh.com)
@ -7,9 +7,6 @@
* Copyright (C) 2004, 2005 Paul Mundt * Copyright (C) 2004, 2005 Paul Mundt
* *
* SuperH SH4-202 MicroDev board support. * SuperH SH4-202 MicroDev board support.
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/ioport.h> #include <linux/ioport.h>

4
arch/sh/boards/mach-microdev/io.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* linux/arch/sh/boards/superh/microdev/io.c * linux/arch/sh/boards/superh/microdev/io.c
* *
@ -6,9 +7,6 @@
* Copyright (C) 2004 Paul Mundt * Copyright (C) 2004 Paul Mundt
* *
* SuperH SH4-202 MicroDev board support. * SuperH SH4-202 MicroDev board support.
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*/ */
#include <linux/init.h> #include <linux/init.h>

4
arch/sh/boards/mach-microdev/irq.c
View File

@ -1,12 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* arch/sh/boards/superh/microdev/irq.c * arch/sh/boards/superh/microdev/irq.c
* *
* Copyright (C) 2003 Sean McGoogan (Sean.McGoogan@superh.com) * Copyright (C) 2003 Sean McGoogan (Sean.McGoogan@superh.com)
* *
* SuperH SH4-202 MicroDev board support. * SuperH SH4-202 MicroDev board support.
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*/ */
#include <linux/init.h> #include <linux/init.h>

4
arch/sh/boards/mach-microdev/setup.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* arch/sh/boards/superh/microdev/setup.c * arch/sh/boards/superh/microdev/setup.c
* *
@ -6,9 +7,6 @@
* Copyright (C) 2004, 2005 Paul Mundt * Copyright (C) 2004, 2005 Paul Mundt
* *
* SuperH SH4-202 MicroDev board support. * SuperH SH4-202 MicroDev board support.
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>

1
arch/sh/boards/mach-migor/Makefile
View File

@ -1,2 +1,3 @@
# SPDX-License-Identifier: GPL-2.0
obj-y := setup.o sdram.o obj-y := setup.o sdram.o
obj-$(CONFIG_SH_MIGOR_QVGA) += lcd_qvga.o obj-$(CONFIG_SH_MIGOR_QVGA) += lcd_qvga.o

5
arch/sh/boards/mach-migor/lcd_qvga.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* Support for SuperH MigoR Quarter VGA LCD Panel * Support for SuperH MigoR Quarter VGA LCD Panel
* *
@ -5,10 +6,6 @@
* *
* Based on lcd_powertip.c from Kenati Technologies Pvt Ltd. * Based on lcd_powertip.c from Kenati Technologies Pvt Ltd.
* Copyright (c) 2007 Ujjwal Pande <ujjwal@kenati.com>, * Copyright (c) 2007 Ujjwal Pande <ujjwal@kenati.com>,
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/ */
#include <linux/delay.h> #include <linux/delay.h>

7
arch/sh/boards/mach-migor/sdram.S
View File

@ -1,11 +1,8 @@
/* /* SPDX-License-Identifier: GPL-2.0
*
* Migo-R sdram self/auto-refresh setup code * Migo-R sdram self/auto-refresh setup code
* *
* Copyright (C) 2009 Magnus Damm * Copyright (C) 2009 Magnus Damm
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/sys.h> #include <linux/sys.h>

1
arch/sh/boards/mach-r2d/Makefile
View File

@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
# #
# Makefile for the RTS7751R2D specific parts of the kernel # Makefile for the RTS7751R2D specific parts of the kernel
# #

5
arch/sh/boards/mach-r2d/setup.c
View File

@ -1,12 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* Renesas Technology Sales RTS7751R2D Support. * Renesas Technology Sales RTS7751R2D Support.
* *
* Copyright (C) 2002 - 2006 Atom Create Engineering Co., Ltd. * Copyright (C) 2002 - 2006 Atom Create Engineering Co., Ltd.
* Copyright (C) 2004 - 2007 Paul Mundt * Copyright (C) 2004 - 2007 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>

1
arch/sh/boards/mach-rsk/Makefile
View File

@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
obj-y := setup.o obj-y := setup.o
obj-$(CONFIG_SH_RSK7203) += devices-rsk7203.o obj-$(CONFIG_SH_RSK7203) += devices-rsk7203.o
obj-$(CONFIG_SH_RSK7264) += devices-rsk7264.o obj-$(CONFIG_SH_RSK7264) += devices-rsk7264.o

5
arch/sh/boards/mach-rsk/devices-rsk7203.c
View File

@ -1,11 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* Renesas Technology Europe RSK+ 7203 Support. * Renesas Technology Europe RSK+ 7203 Support.
* *
* Copyright (C) 2008 - 2010 Paul Mundt * Copyright (C) 2008 - 2010 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/types.h> #include <linux/types.h>

5
arch/sh/boards/mach-rsk/devices-rsk7264.c
View File

@ -1,11 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* RSK+SH7264 Support. * RSK+SH7264 Support.
* *
* Copyright (C) 2012 Renesas Electronics Europe * Copyright (C) 2012 Renesas Electronics Europe
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/types.h> #include <linux/types.h>

5
arch/sh/boards/mach-rsk/devices-rsk7269.c
View File

@ -1,12 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* RSK+SH7269 Support * RSK+SH7269 Support
* *
* Copyright (C) 2012 Renesas Electronics Europe Ltd * Copyright (C) 2012 Renesas Electronics Europe Ltd
* Copyright (C) 2012 Phil Edworthy * Copyright (C) 2012 Phil Edworthy
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/types.h> #include <linux/types.h>

5
arch/sh/boards/mach-rsk/setup.c
View File

@ -1,12 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* Renesas Technology Europe RSK+ Support. * Renesas Technology Europe RSK+ Support.
* *
* Copyright (C) 2008 Paul Mundt * Copyright (C) 2008 Paul Mundt
* Copyright (C) 2008 Peter Griffin <pgriffin@mpc-data.co.uk> * Copyright (C) 2008 Peter Griffin <pgriffin@mpc-data.co.uk>
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/types.h> #include <linux/types.h>

1
arch/sh/boards/mach-sdk7780/Makefile
View File

@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
# #
# Makefile for the SDK7780 specific parts of the kernel # Makefile for the SDK7780 specific parts of the kernel
# #

5
arch/sh/boards/mach-sdk7780/irq.c
View File

@ -1,13 +1,10 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* linux/arch/sh/boards/renesas/sdk7780/irq.c * linux/arch/sh/boards/renesas/sdk7780/irq.c
* *
* Renesas Technology Europe SDK7780 Support. * Renesas Technology Europe SDK7780 Support.
* *
* Copyright (C) 2008 Nicholas Beck <nbeck@mpc-data.co.uk> * Copyright (C) 2008 Nicholas Beck <nbeck@mpc-data.co.uk>
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/irq.h> #include <linux/irq.h>

5
arch/sh/boards/mach-sdk7780/setup.c
View File

@ -1,12 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* arch/sh/boards/renesas/sdk7780/setup.c * arch/sh/boards/renesas/sdk7780/setup.c
* *
* Renesas Solutions SH7780 SDK Support * Renesas Solutions SH7780 SDK Support
* Copyright (C) 2008 Nicholas Beck <nbeck@mpc-data.co.uk> * Copyright (C) 2008 Nicholas Beck <nbeck@mpc-data.co.uk>
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/types.h> #include <linux/types.h>

1
arch/sh/boards/mach-sdk7786/Makefile
View File

@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
obj-y := fpga.o irq.o nmi.o setup.o obj-y := fpga.o irq.o nmi.o setup.o
obj-$(CONFIG_GPIOLIB) += gpio.o obj-$(CONFIG_GPIOLIB) += gpio.o

5
arch/sh/boards/mach-sdk7786/fpga.c
View File

@ -1,11 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* SDK7786 FPGA Support. * SDK7786 FPGA Support.
* *
* Copyright (C) 2010 Paul Mundt * Copyright (C) 2010 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/io.h> #include <linux/io.h>

5
arch/sh/boards/mach-sdk7786/gpio.c
View File

@ -1,11 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* SDK7786 FPGA USRGPIR Support. * SDK7786 FPGA USRGPIR Support.
* *
* Copyright (C) 2010 Paul Mundt * Copyright (C) 2010 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/interrupt.h> #include <linux/interrupt.h>

5
arch/sh/boards/mach-sdk7786/irq.c
View File

@ -1,12 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* SDK7786 FPGA IRQ Controller Support. * SDK7786 FPGA IRQ Controller Support.
* *
* Copyright (C) 2010 Matt Fleming * Copyright (C) 2010 Matt Fleming
* Copyright (C) 2010 Paul Mundt * Copyright (C) 2010 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/irq.h> #include <linux/irq.h>
#include <mach/fpga.h> #include <mach/fpga.h>

5
arch/sh/boards/mach-sdk7786/nmi.c
View File

@ -1,11 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* SDK7786 FPGA NMI Support. * SDK7786 FPGA NMI Support.
* *
* Copyright (C) 2010 Paul Mundt * Copyright (C) 2010 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/kernel.h> #include <linux/kernel.h>

5
arch/sh/boards/mach-sdk7786/setup.c
View File

@ -1,12 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* Renesas Technology Europe SDK7786 Support. * Renesas Technology Europe SDK7786 Support.
* *
* Copyright (C) 2010 Matt Fleming * Copyright (C) 2010 Matt Fleming
* Copyright (C) 2010 Paul Mundt * Copyright (C) 2010 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>

5
arch/sh/boards/mach-sdk7786/sram.c
View File

@ -1,11 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* SDK7786 FPGA SRAM Support. * SDK7786 FPGA SRAM Support.
* *
* Copyright (C) 2010 Paul Mundt * Copyright (C) 2010 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

1
arch/sh/boards/mach-se/7206/Makefile
View File

@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
# #
# Makefile for the 7206 SolutionEngine specific parts of the kernel # Makefile for the 7206 SolutionEngine specific parts of the kernel
# #

1
arch/sh/boards/mach-se/7343/Makefile
View File

@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
# #
# Makefile for the 7343 SolutionEngine specific parts of the kernel # Makefile for the 7343 SolutionEngine specific parts of the kernel
# #

5
arch/sh/boards/mach-se/7343/irq.c
View File

@ -1,3 +1,4 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* Hitachi UL SolutionEngine 7343 FPGA IRQ Support. * Hitachi UL SolutionEngine 7343 FPGA IRQ Support.
* *
@ -6,10 +7,6 @@
* *
* Based on linux/arch/sh/boards/se/7343/irq.c * Based on linux/arch/sh/boards/se/7343/irq.c
* Copyright (C) 2007 Nobuhiro Iwamatsu * Copyright (C) 2007 Nobuhiro Iwamatsu
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#define DRV_NAME "SE7343-FPGA" #define DRV_NAME "SE7343-FPGA"
#define pr_fmt(fmt) DRV_NAME ": " fmt #define pr_fmt(fmt) DRV_NAME ": " fmt

1
arch/sh/boards/mach-se/770x/Makefile
View File

@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
# #
# Makefile for the 770x SolutionEngine specific parts of the kernel # Makefile for the 770x SolutionEngine specific parts of the kernel
# #

1
arch/sh/boards/mach-se/7721/Makefile
View File

@ -1 +1,2 @@
# SPDX-License-Identifier: GPL-2.0
obj-y := setup.o irq.o obj-y := setup.o irq.o

5
arch/sh/boards/mach-se/7721/irq.c
View File

@ -1,11 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/* /*
* linux/arch/sh/boards/se/7721/irq.c * linux/arch/sh/boards/se/7721/irq.c
* *
* Copyright (C) 2008 Renesas Solutions Corp. * Copyright (C) 2008 Renesas Solutions Corp.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/irq.h> #include <linux/irq.h>

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