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/linux/drivers/leds/blink/
H A Dleds-lgm-sso.c133 struct regmap *mmap; member
222 regmap_update_bits(priv->mmap, reg, GENMASK(high, low), val); in sso_led_freq_set()
229 regmap_update_bits(priv->mmap, reg, GENMASK(high, low), val); in sso_led_freq_set()
245 regmap_write(priv->mmap, DUTY_CYCLE(desc->pin), brightness); in sso_led_brightness_set()
255 regmap_update_bits(priv->mmap, SSO_CON2, BIT(desc->pin), 0); in sso_led_brightness_set()
258 regmap_update_bits(priv->mmap, SSO_CON2, BIT(desc->pin), in sso_led_brightness_set()
316 regmap_update_bits(priv->mmap, SSO_CON2, BIT(led->desc.pin), in sso_led_blink_set()
332 regmap_update_bits(priv->mmap, SSO_CON2, BIT(desc->pin), in sso_led_hw_cfg()
337 regmap_update_bits(priv->mmap, SSO_CON3, BIT(desc->pin), in sso_led_hw_cfg()
341 regmap_write(priv->mmap, DUTY_CYCLE(desc->pin), desc->brightness); in sso_led_hw_cfg()
[all …]
/linux/tools/perf/arch/x86/util/
H A Devent.c36 size = sizeof(event->mmap) - sizeof(event->mmap.filename) + in perf_event__synthesize_extra_kmaps_cb()
42 event->mmap.header.type = PERF_RECORD_MMAP; in perf_event__synthesize_extra_kmaps_cb()
53 event->mmap.header.size = size; in perf_event__synthesize_extra_kmaps_cb()
55 event->mmap.start = map__start(map); in perf_event__synthesize_extra_kmaps_cb()
56 event->mmap.len = map__size(map); in perf_event__synthesize_extra_kmaps_cb()
57 event->mmap.pgoff = map__pgoff(map); in perf_event__synthesize_extra_kmaps_cb()
58 event->mmap.pid = args->machine->pid; in perf_event__synthesize_extra_kmaps_cb()
60 strlcpy(event->mmap.filename, kmap->name, PATH_MAX); in perf_event__synthesize_extra_kmaps_cb()
78 .event = zalloc(sizeof(args.event->mmap) + machine->id_hdr_size), in perf_event__synthesize_extra_kmaps()
/linux/tools/perf/util/
H A Dmmap.c39 size_t mmap__mmap_len(struct mmap *map) in mmap__mmap_len()
71 static int perf_mmap__aio_enabled(struct mmap *map) in perf_mmap__aio_enabled()
77 static int perf_mmap__aio_alloc(struct mmap *map, int idx) in perf_mmap__aio_alloc()
79 map->aio.data[idx] = mmap(NULL, mmap__mmap_len(map), PROT_READ|PROT_WRITE, in perf_mmap__aio_alloc()
89 static void perf_mmap__aio_free(struct mmap *map, int idx) in perf_mmap__aio_free()
97 static int perf_mmap__aio_bind(struct mmap *map, int idx, struct perf_cpu cpu, int affinity) in perf_mmap__aio_bind()
126 static int perf_mmap__aio_alloc(struct mmap *map, int idx) in perf_mmap__aio_alloc()
135 static void perf_mmap__aio_free(struct mmap *map, int idx) in perf_mmap__aio_free()
140 static int perf_mmap__aio_bind(struct mmap *map __maybe_unused, int idx __maybe_unused, in perf_mmap__aio_bind()
147 static int perf_mmap__aio_mmap(struct mmap *map, struct mmap_params *mp) in perf_mmap__aio_mmap()
[all …]
H A Dmmap.h29 struct mmap { struct
52 int mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, struct perf_cpu cpu); argument
53 void mmap__munmap(struct mmap *map);
55 union perf_event *perf_mmap__read_forward(struct mmap *map);
57 int perf_mmap__push(struct mmap *md, void *to,
58 int push(struct mmap *map, void *to, void *buf, size_t size));
60 size_t mmap__mmap_len(struct mmap *map);
/linux/tools/testing/selftests/mm/
H A Dmap_fixed_noreplace.c31 addr = mmap(NULL, size, PROT_NONE, flags, -1, 0); in find_base_addr()
61 p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); in main()
70 ksft_print_msg("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p); in main()
71 ksft_test_result_pass("mmap() 5*PAGE_SIZE at base\n"); in main()
75 p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); in main()
78 ksft_exit_fail_msg("Error: first mmap() failed unexpectedly\n"); in main()
80 ksft_print_msg("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p); in main()
81 ksft_test_result_pass("mmap() 3*PAGE_SIZE at base+PAGE_SIZE\n"); in main()
93 p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); in main()
96 ksft_exit_fail_msg("Error:1: mmap() succeede in main()
[all...]
H A Dmremap_dontunmap.c46 void *source_mapping = mmap(NULL, num_pages * page_size, PROT_NONE, in kernel_support_for_mremap_dontunmap()
100 mmap(NULL, num_pages * page_size, PROT_READ | PROT_WRITE, in mremap_dontunmap_simple()
140 mmap(NULL, num_pages * page_size, PROT_READ | PROT_WRITE, in mremap_dontunmap_simple_shmem()
190 mmap(NULL, num_pages * page_size, PROT_READ | PROT_WRITE, in mremap_dontunmap_simple_fixed()
196 mmap(NULL, num_pages * page_size, PROT_READ | PROT_WRITE, in mremap_dontunmap_simple_fixed()
247 mmap(NULL, num_pages * page_size, PROT_READ | PROT_WRITE, in mremap_dontunmap_partial_mapping()
300 mmap(NULL, 5 * page_size, PROT_READ | PROT_WRITE, in mremap_dontunmap_partial_mapping_overwrite()
306 mmap(NULL, 10 * page_size, PROT_READ | PROT_WRITE, in mremap_dontunmap_partial_mapping_overwrite()
355 mmap(NULL, page_size, PROT_READ | PROT_WRITE, in main()
H A Dhugetlb-madvise.c97 addr = mmap(NULL, (NR_HUGE_PAGES + 2) * huge_page_size, in main()
139 addr = mmap(NULL, NR_HUGE_PAGES * huge_page_size, in main()
177 addr = mmap(NULL, NR_HUGE_PAGES * huge_page_size, in main()
207 addr = mmap(NULL, NR_HUGE_PAGES * huge_page_size, in main()
266 addr = mmap(NULL, NR_HUGE_PAGES * huge_page_size, in main()
306 addr = mmap(NULL, NR_HUGE_PAGES * huge_page_size, in main()
318 addr2 = mmap(NULL, NR_HUGE_PAGES * huge_page_size, in main()
H A Dmadv_populate.c35 addr = mmap(0, pagesize, PROT_READ | PROT_WRITE, in sense_support()
58 addr = mmap(0, SIZE, PROT_READ, MAP_ANONYMOUS | MAP_PRIVATE, 0, 0); in test_prot_read()
79 addr = mmap(0, SIZE, PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, 0, 0); in test_prot_write()
100 addr = mmap(0, SIZE, PROT_READ | PROT_WRITE, in test_holes()
170 addr = mmap(0, SIZE, PROT_READ | PROT_WRITE, in test_populate_read()
192 addr = mmap(0, SIZE, PROT_READ | PROT_WRITE, in test_populate_write()
242 addr = mmap(0, SIZE, PROT_READ | PROT_WRITE, in test_softdirty()
H A Dmdwe_test.c219 self->p = mmap(NULL, self->size, PROT_READ | PROT_EXEC, self->flags, 0, 0); in TEST_F()
225 self->p = mmap(NULL, self->size, PROT_WRITE | PROT_EXEC, self->flags, 0, 0); in TEST_F()
237 self->p = mmap(NULL, self->size, PROT_READ | PROT_EXEC, self->flags, 0, 0); in TEST_F()
248 self->p = mmap(NULL, self->size, PROT_READ, self->flags, 0, 0); in TEST_F()
263 self->p = mmap(NULL, self->size, PROT_WRITE, self->flags, 0, 0); in TEST_F()
278 self->p = mmap(NULL, self->size, PROT_READ, self->flags, 0, 0); in TEST_F()
282 p = mmap(self->p, self->size, PROT_READ | PROT_EXEC, in TEST_F()
296 self->p = mmap(NULL, self->size, PROT_EXEC, self->flags, 0, 0); in TEST_F()
H A Dhugepage-mremap.c84 addr = mmap(NULL, len, PROT_READ | PROT_WRITE, in register_region_with_uffd()
125 void *haddr = mmap((void *)suggested_addr, length, PROTECTION, in main()
133 void *daddr = mmap((void *)suggested_addr, length, PROTECTION, in main()
141 mmap((void *)suggested_addr, length, PROTECTION, FLAGS, -1, 0); in main()
H A Dmlock2-tests.c181 map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE, in unlock_lock_check()
184 ksft_exit_fail_msg("mmap error: %s", strerror(errno)); in unlock_lock_check()
232 map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE, in unlock_onfault_check()
235 ksft_exit_fail_msg("mmap error: %s", strerror(errno)); in unlock_onfault_check()
259 map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE, in test_mlock_onfault()
262 ksft_exit_fail_msg("mmap error: %s", strerror(errno)); in test_mlock_onfault()
282 map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE, in test_lock_onfault_of_present()
285 ksft_exit_fail_msg("mmap error: %s\n", strerror(errno)); in test_lock_onfault_of_present()
308 map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE, in test_munlockall0()
311 ksft_exit_fail_msg("mmap erro in test_munlockall0()
[all...]
H A Dvirtual_address_range.c20 * Maximum address range mapped with a single mmap()
35 * first argument into mmap() system call.
89 ptr = mmap((void *) (1UL << 45), MAP_CHUNK_SIZE, PROT_READ | in validate_lower_address_hint()
169 ptr[i] = mmap(NULL, MAP_CHUNK_SIZE, PROT_READ | PROT_WRITE,
174 ksft_exit_fail_msg("mmap unexpectedly succeeded with hint\n");
189 hptr[i] = mmap(hint, MAP_CHUNK_SIZE, PROT_READ | PROT_WRITE,
199 ksft_test_result_fail("BUG in mmap() or /proc/self/maps\n");
H A Dsoft-dirty.c22 ksft_exit_fail_msg("mmap failed\n"); in test_simple()
52 map = mmap(NULL, pagesize, (PROT_READ | PROT_WRITE), (MAP_PRIVATE | MAP_ANON), -1, 0); in test_vma_reuse()
54 ksft_exit_fail_msg("mmap failed"); in test_vma_reuse()
63 map2 = mmap(NULL, pagesize, (PROT_READ | PROT_WRITE), (MAP_PRIVATE | MAP_ANON), -1, 0); in test_vma_reuse()
65 ksft_exit_fail_msg("mmap failed"); in test_vma_reuse()
135 map = mmap(NULL, pagesize, PROT_READ|PROT_WRITE, in test_mprotect()
138 ksft_exit_fail_msg("anon mmap failed\n"); in test_mprotect()
147 map = mmap(NULL, pagesize, PROT_READ|PROT_WRITE, in test_mprotect()
150 ksft_exit_fail_msg("file mmap failed\n"); in test_mprotect()
/linux/Documentation/devicetree/bindings/arm/
H A Dxen.txt31 xen,uefi-mmap-start | 64-bit | Guest physical address of the UEFI memory
34 xen,uefi-mmap-size | 32-bit | Size in bytes of the UEFI memory map
37 xen,uefi-mmap-desc-size | 32-bit | Size in bytes of each entry in the UEFI
40 xen,uefi-mmap-desc-ver | 32-bit | Version of the mmap descriptor format.
51 xen,uefi-mmap-start = <0xXXXXXXXX>;
52 xen,uefi-mmap-size = <0xXXXXXXXX>;
53 xen,uefi-mmap-desc-size = <0xXXXXXXXX>;
54 xen,uefi-mmap-desc-ver = <0xXXXXXXXX>;
/linux/tools/perf/tests/
H A Ddlfilter-test.c150 struct perf_record_mmap *mmap = (struct perf_record_mmap *)buf; in write_mmap() local
152 ssize_t sz = sizeof(*mmap) - sizeof(mmap->filename) + fsz; in write_mmap()
154 mmap->header.type = PERF_RECORD_MMAP; in write_mmap()
155 mmap->header.misc = PERF_RECORD_MISC_USER; in write_mmap()
156 mmap->header.size = sz; in write_mmap()
158 mmap->pid = pid; in write_mmap()
159 mmap->tid = tid; in write_mmap()
160 mmap->start = start; in write_mmap()
161 mmap->len = len; in write_mmap()
162 mmap->pgoff = pgoff; in write_mmap()
[all …]
/linux/tools/testing/selftests/bpf/prog_tests/
H A Dmmap.c55 tmp1 = mmap(NULL, page_size, PROT_READ | PROT_WRITE, MAP_SHARED, rdmap_fd, 0); in test_mmap()
61 tmp1 = mmap(NULL, page_size, PROT_READ, MAP_SHARED, rdmap_fd, 0); in test_mmap()
73 bss_mmaped = mmap(NULL, bss_sz, PROT_READ | PROT_WRITE, MAP_SHARED, in test_mmap()
81 map_mmaped = mmap(NULL, map_sz, PROT_READ | PROT_WRITE, MAP_SHARED, in test_mmap()
146 map_mmaped = mmap(NULL, map_sz, PROT_READ, MAP_SHARED, data_map_fd, 0); in test_mmap()
165 p = mmap(NULL, map_sz, flags, MAP_SHARED, data_map_fd, 0); in test_mmap()
180 tmp1 = mmap(NULL, map_sz, PROT_READ | PROT_WRITE, MAP_SHARED, in test_mmap()
200 tmp0 = mmap(NULL, 4 * page_size, PROT_READ, MAP_SHARED | MAP_ANONYMOUS, in test_mmap()
206 tmp1 = mmap(tmp0, 3 * page_size, PROT_READ, MAP_SHARED | MAP_FIXED, in test_mmap()
221 tmp2 = mmap(tmp1 + page_size, page_size, PROT_READ, in test_mmap()
[all …]
/linux/Documentation/translations/zh_CN/mm/damon/
H A Ddesign.rst53 的mmap()区域之间的间隙，以及在大多数情况下最下面的mmap()区域和堆之间的间隙。因为这些间隙
58 <uppermost mmap()-ed region>
59 (small mmap()-ed regions and munmap()-ed regions)
60 <lowermost mmap()-ed region>
/linux/Documentation/translations/zh_CN/PCI/
H A Dsysfs-pci.rst56 resource0..N PCI资源N，如果存在的话 (binary, mmap, rw\ [1]_)
57 resource0_wc..N_wc PCI WC映射资源N，如果可预取的话 (binary, mmap)
70 mmap - 文件是可移动的
78 行操作（例如，改变配置空间，分离设备）。 mmapable文件可以通过偏移量为0的文件的mmap获得，
80 检查任何尝试的mmap的返回值。其中最值得注意的是I/O端口资源，它也提供读/写访问。
116 功能的通用实现。为了支持通过/proc/bus/pci中的文件实现mmap()的历史接口，平台也可以设置
/linux/Documentation/translations/zh_CN/mm/
H A Dhugetlbfs_reserv.rst22 持后不久，人们决定，在mmap()时检测巨页的短缺情况会更好。这个想法是，如果
23 没有足够的巨页来覆盖映射，mmap()将失败。这首先是在mmap()时在代码中做一个
25 样，代码随着时间的推移而不断发展。然而，基本的想法是在mmap()时 “预留”
85 留映射是在创建映射（mmap(MAP_PRIVATE)）时创建的。
93 当创建一个巨大的有页面支持的共享内存段（shmget(SHM_HUGETLB)）或通过mmap(MAP_HUGETLB)
101 hugetlb_reserve_pages()做的第一件事是检查在调用shmget()或mmap()时是否指定了NORESERVE
105 的长度。对于mmap()，offset参数可以用来指定进入底层文件的偏移量。在这种情况下，'from'和'to'
/linux/Documentation/userspace-api/media/dvb/
H A Ddmx-mmap.rst4 .. _dmx-mmap:
7 Digital TV mmap()
13 dmx-mmap - Map device memory into application address space
25 .. c:function:: void *mmap( void *start, size_t length, int prot, int flags, int fd, off_t offset )
33 multiple of the pagesize and mmap will fail when the specified
56 :c:func:`mmap()` will fail. If ``MAP_FIXED`` is specified,
80 The :c:func:`mmap()` function asks to map ``length`` bytes starting at
94 On success :c:func:`mmap()` returns a pointer to the mapped buffer. On
H A Ddmx-munmap.rst32 :c:func:`mmap()` function.
36 :c:func:`mmap()`.
41 Unmaps a previously with the :c:func:`mmap()` function mapped
/linux/Documentation/userspace-api/media/v4l/
H A Dfunc-mmap.rst4 .. _func-mmap:
7 V4L2 mmap()
13 v4l2-mmap - Map device memory into application address space
23 .. c:function:: void *mmap( void *start, size_t length, int prot, int flags, int fd, off_t offset )
31 multiple of the pagesize and mmap will fail when the specified
55 :c:func:`mmap()` function fails.
71 :c:func:`mmap()` will fail. If ``MAP_FIXED`` is specified,
101 The :c:func:`mmap()` function asks to map ``length`` bytes starting at
116 On success :c:func:`mmap()` returns a pointer to the mapped buffer. On
H A Dfunc-munmap.rst30 :c:func:`mmap()` function.
34 :c:func:`mmap()` and returned by the driver in the struct
43 Unmaps a previously with the :c:func:`mmap()` function mapped
/linux/Documentation/mm/
H A Dprocess_addrs.rst45 * **mmap locks** - Each MM has a read/write semaphore :c:member:`!mmap_lock`
52 automatically when the mmap write lock is released). To take a VMA write lock
77 * Obtain an mmap read lock at the MM granularity via :c:func:`!mmap_read_lock` (or a
82 required to instead obtain an mmap read lock if this returns :c:macro:`!NULL`,
90 * Obtain an mmap write lock at the MM granularity via :c:func:`!mmap_write_lock` (or a
99 VMA locks are special in that you must obtain an mmap **write** lock **first**
116 mmap lock VMA lock rmap lock Stable? Read? Write most? Write all?
126 .. warning:: While it's possible to obtain a VMA lock while holding an mmap read lock,
128 another task already holds an mmap write lock and attempts to acquire a VMA
156 :c:member:`!vm_start` Inclusive start virtual address of range mmap write,
[all …]
/linux/Documentation/arch/arm/
H A Duefi.rst57 linux,uefi-mmap-start 64-bit Physical address of the UEFI memory map,
60 linux,uefi-mmap-size 32-bit Size in bytes of the UEFI memory map
63 linux,uefi-mmap-desc-size 32-bit Size in bytes of each entry in the UEFI
66 linux,uefi-mmap-desc-ver 32-bit Version of the mmap descriptor format.

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