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59 Commits

Author SHA1 Message Date
Alin Jerpelea
339457dda3 mm: migrate to SPDX identifier 
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
 2024-09-13 08:49:05 +08:00
buxiasen
870d989d6c mm: seperate mm_pool and mm_pool init 
make possible enable pool, but disabled in system heap.
also compatible for further extra heap use/not use pool.
Now use MM_HEAP_MEMPOOL_THRESHOLD -1 to indicate pool disabled.

Signed-off-by: buxiasen <buxiasen@xiaomi.com>
 2024-06-23 11:09:39 +08:00
Yanfeng Liu
813f67f93b mm_heap/mm.h: revising comments 
Revising comments to be in line with code

Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
 2024-03-12 19:44:48 +08:00
Yanfeng Liu
5ac401d941 mm/kconfig: fix typo in MM_DEFAULT_ALIGNMENT 
This fixes minor typo in MM_DEFAULT_ALIGNMENT

Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
 2024-03-11 13:12:34 +08:00
Nathan Hartman
3ed629274e mm: Fix some typos 2023-11-24 09:57:10 -08:00
Xu Xingliang
6e7115ca09 mm: free delay list when exceeding specified count 
Signed-off-by: Xu Xingliang <xuxingliang@xiaomi.com>
 2023-11-15 12:05:20 +01:00
Xiang Xiao
0fbeea64d5 mm: Remove mm_spinlock 
since it's enough to protect per cpu delay list by disabling interrupt

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-11-12 11:27:38 +08:00
yinshengkai
bb5b5420ae mm: record the maximum system memory usage 
Add the usmblks field to mallinfo to record the maximum space allocated historically in the system

https://man7.org/linux/man-pages/man3/mallinfo.3.html#:~:text=mmap(2).-,usmblks,-This%20field%20is

Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
 2023-11-09 09:08:49 +08:00
Xiang Xiao
0c805ca0a9 mm: Change global spinlock to per heap 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-10-30 11:18:34 +02:00
Petro Karashchenko
1c2931222c mm/mm_heap: add parenthesis in macro definition 
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
 2023-09-16 14:17:47 +08:00
Xuxingliang
b9e59ad0a7 mm: add macro to judge if node/prenode is free 
Signed-off-by: Xuxingliang <xuxingliang@xiaomi.com>
 2023-09-12 22:09:36 +08:00
Xuxingliang
c9f33b7ee5 mm: use unified naming style for macros 
Make all macro name starts with prefix MM_
Signed-off-by: Xuxingliang <xuxingliang@xiaomi.com>
 2023-09-12 22:09:36 +08:00
wangbowen6
2dedaa449b mm: use shced_backtrace and skip the first numbers in mm backatrace 
beacause the first numbers backtrace in mm node is same, skip them to
show more useful backtrace.

Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
 2023-07-31 05:46:37 -07:00
anjiahao
c60dd72a2a Support memdump to realize incremental dump function 
Add a new field to record the global on the basis of mm_backtrace.
When using alloc, the field is incremented by 1,
so that the memory usage can be dumped within the range
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
 2023-05-22 12:31:32 +08:00
Xiang Xiao
7990f90915 Indent the define statement by two spaces 
follow the code style convention

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-05-21 09:52:08 -03:00
wangbowen6
3e971d2e6d mm_heap: double malloced memory default alignment (4 -> 8, 8 -> 16) 
Base on the gnu libc standard:
https://www.gnu.org/software/libc/manual/html_node/Aligned-Memory-Blocks.html

Change the default memory aligment to 8 bytes for 32-bit system and
16 bytes for 64-bit system.

Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
 2023-03-06 11:27:43 +01:00
wangbowen6
70083168f1 mm: support custom the mm alignment and default to be 8 
Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
 2023-03-06 11:10:36 +08:00
chao an
4c8d244fae sched/getpid: replace syscall getpid/tid/ppid() to kernel version 
NuttX kernel should not use the syscall functions, especially after
enabling CONFIG_SCHED_INSTRUMENTATION_SYSCALL, all system functions
will be traced to backend, which will impact system performance.

Signed-off-by: chao an <anchao@xiaomi.com>
 2023-02-02 10:33:01 +08:00
wangbowen6
b1948a1631 mm: move preceding to previous free node to reduce the overhead 
Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
 2023-02-01 11:14:02 +08:00
wangbowen6
723c6e52e2 mm: reorder the preceding and size and move MM_ALLOC_BIT to size 
Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
 2023-02-01 11:14:02 +08:00
anjiahao
632ed0d3a4 Optimize multipe mempool memory space usage 
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
 2023-01-18 14:12:45 +08:00
anjiahao
6b530fceae mempool:change mempool_multiple way of initialization 
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
 2023-01-18 14:12:45 +08:00
Xiang Xiao
154bb93c45 mm: Terminate the backtrace array with one NULL pointer 
since one entry is enough to identify the end of back trace

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-01-17 16:48:30 +08:00
anjiahao
bdcb1f6a25 fix:mmsize_t need support 64bit 
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
 2023-01-16 20:32:17 +08:00
dongjiuzhu1
c82f44c4f3 mm/mm_heap: add mempool to optimize small block performance 
There are many small memory block in NuttX system, eg: struct tcb_s,
struct inode, etc, and several disadvantages about them:
1.Their frequent allocate and free cause the system memory fragmentation.
2.Since each memory block has an overhead, the utilization of small memory
blocks is relatively low, which will cause memory waste.

So we can use mempool to alloc smallo block, to improve alloc speed
and utilization, to reduce fragmentation.

Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
 2023-01-16 20:32:17 +08:00
dongjiuzhu1
7cd325f3be mm/mm_heap: remove kasan in MM_ADD_BACKTRACE 
do simple copy to instead of memset and memcpy operation because
they have been instrumented, if you access the posion area,
the system will crash.

Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
 2023-01-16 20:32:17 +08:00
Xiang Xiao
54de894e52 mm/heap: Skip memset backtrace buffer 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-01-08 01:25:18 +02:00
Xiang Xiao
70ecb4ef26 mm/heap: Changee mmchunk_handler_t to mm_node_handler_t 
to unify the term usage(chunk v.s. node and mm v.s. mm_)

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-01-08 01:25:18 +02:00
anjiahao
f403118647 mm:fix typos 
./mm_heap/mm.h:86:27: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token
   86 |          FAR strcut tcb_s *tcb; \
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
 2022-12-22 20:19:05 +08:00
anjiahao
70791af8e2 procmeminfo:support memdump can show specific task 
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
 2022-12-19 20:43:33 +08:00
qinwei1
8021dfece6 sched/task/task_getpid: getpid should return process id not thread id 
Summary:
   implement the right semantics:
1. getpid should return the main thread id
2. gettid should return the current thread id

Refer to:
 https://github.com/apache/incubator-nuttx/issues/2499
 https://github.com/apache/incubator-nuttx/pull/2518

Signed-off-by: qinwei1 <qinwei1@xiaomi.com>
 2022-11-17 17:58:08 +08:00
Xiang Xiao
7dcf35cf64 mm: Remove the unused macro MM_IS_ALLOCATED 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-11-08 14:57:48 +09:00
Xiang Xiao
b567e09c3c mm: Restore the return type of mm_lock from bool to int 
Fix the issue reported here better:
https://github.com/apache/incubator-nuttx/pull/6995

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-11-07 10:01:52 +01:00
Xiang Xiao
e08c296a8e Change the type of tg_joinlock, mm_lock and md_lock from sem_t to mutex_t 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-10-31 10:35:53 +01:00
dongjiuzhu1
579e47347e mm/mm_heap: define MM_MASK_BIT as significant bits mask 
using MM_MASK_BIT to expand different bits of preceding field to store the
block status.

Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
 2022-10-29 00:12:02 +08:00
dongjiuzhu1
5982cafbe0 mm/mm_heap: using LOG2_CEIL to generate MM_MIN_SHIFT at compile time 
Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
 2022-10-29 00:12:02 +08:00
anjiahao
d1d46335df Replace nxsem API when used as a lock with nxmutex API 
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-10-17 15:59:46 +09:00
chao.an
87cb224b1c mm/kasan: node header should updated from unpoisoning memory 
| (gdb) bt
| #0  up_assert (filename=0x7fffffffdc6c "\001", lineno=0) at sim/up_assert.c:75
| #1  0x00005555555e636b in _assert (filename=0x555555627225 "kasan/kasan.c", linenum=104) at assert/lib_assert.c:36
| #2  0x00005555555a388e in kasan_report (addr=140737284458088, size=1, is_write=true) at kasan/kasan.c:104
| #3  0x00005555555a40a1 in __asan_storeN_noabort (addr=140737284458088, size=1) at kasan/kasan.c:297
| #4  0x00005555555a4519 in __asan_store1_noabort (addr=140737284458088) at kasan/kasan.c:348
| #5  0x00005555555a26d7 in memset (s=0x7ffff3d8c668, c=0, n=63) at string/lib_memset.c:169
| #6  0x00005555555a46a4 in mm_addregion (heap=0x7ffff3d8c000, heapstart=0x7ffff3d8c648, heapsize=66058656) at mm_heap/mm_initialize.c:131
| #7  0x00005555555a4a00 in mm_initialize (name=0x555555627068 "Umem", heapstart=0x7ffff3d8c648, heapsize=67107256) at mm_heap/mm_initialize.c:231
| #8  0x00005555555a33b1 in umm_initialize (heap_start=0x7ffff3d8c000, heap_size=67108864) at umm_heap/umm_initialize.c:84
| #9  0x000055555558f17c in nx_start () at init/nx_start.c:469
| #10 0x0000555555589559 in main (argc=1, argv=0x7fffffffdf58, envp=0x7fffffffdf68) at sim/up_head.c:131
| (gdb)

Signed-off-by: chao.an <anchao@xiaomi.com>
 2022-08-02 01:44:48 +08:00
Jiuzhu Dong
9899dd0ec0 mm/mm_heap: change CONFIG_MM_BACKTRACE to int type 
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
 2022-07-26 23:45:31 +08:00
Xiang Xiao
53c6789bef mm: Add mm_uninitialize to release the resource 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-06-12 19:41:14 +09:00
YAMAMOTO Takashi
b05320cac2 mm: Move backtrace stuff into a separate option 
The functionality has too much overhead for CONFIG_DEBUG_MM.
 2022-05-21 14:28:41 +08:00
wangbowen6
1a4ccd2d70 Revert "mm_heap: heapsize align with MM_MIN_CHUNK." 
This reverts commit 69e69740b5.
 2022-04-11 12:46:17 +08:00
wangbowen6
69e69740b5 mm_heap: heapsize align with MM_MIN_CHUNK. 
Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
 2022-03-31 19:50:25 +08:00
wangbowen6
a0bde21f0f mm/mm_heap: place alloc-bit at the LSB of node->preceeding. 
Heap always allocate the memory at least 2bytes alignment.

Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
 2022-03-31 14:43:56 +03:00
Jiuzhu Dong
709207b8d3 mm/memdump: dynamic turn on backtrace in heap when enable DEBUG_MM 
default turn off.
turn on: echo on > /proc/memdump
turn off: echo off > proc/memdump

Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
 2022-03-27 13:21:48 +08:00
Petro Karashchenko
68902d8732 pid_t: unify usage of special task IDs 
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
 2022-03-22 21:22:32 +08:00
Jiuzhu Dong
2dcc4a359d mm/dump: add pid and backtrace for every memory node 
usage:
echo <pid/used/free> trace > /proc/memdump
echo used > /proc/memdump //output all used memory info with backtrace
echo free > /proc/memdump //output all free memory info
echo 22 > /proc/memdump //output used memory info for task pid is 22 with backtrace

Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
 2022-02-26 14:32:42 +08:00
Jiuzhu Dong
39eaeefb78 mm/mm_heap: remove the unnecessary check for memory node size 
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
 2022-02-26 14:32:42 +08:00
Jiuzhu Dong
eba0323eae mm/mm_heap: add mm_foreach to run handler for every memory node 
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
 2022-02-13 03:20:31 +08:00
Xiang Xiao
77792a1598 sched: Define CONFIG_SMP_NCPUS to 1 in no SMP case 
to simplify the SMP related code logic

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-01-20 23:21:21 +08:00