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/linux/drivers/media/test-drivers/vivid/
H A Dvivid-vid-common.c41 .buffers = 1,
50 .buffers = 1,
58 .buffers = 1,
66 .buffers = 1,
74 .buffers = 1,
82 .buffers = 1,
90 .buffers = 1,
98 .buffers = 1,
106 .buffers = 1,
114 .buffers = 1,
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/linux/lib/xz/
H A Dxz_dec_test.c51 static struct xz_buf buffers = { variable
74 buffers.in_pos = 0; in xz_dec_test_open()
75 buffers.in_size = 0; in xz_dec_test_open()
76 buffers.out_pos = 0; in xz_dec_test_open()
119 while ((remaining > 0 || buffers.out_pos == buffers.out_size) in xz_dec_test_write()
121 if (buffers.in_pos == buffers.in_size) { in xz_dec_test_write()
122 buffers.in_pos = 0; in xz_dec_test_write()
127 buf += buffers.in_size; in xz_dec_test_write()
128 remaining -= buffers.in_size; in xz_dec_test_write()
131 buffers.out_pos = 0; in xz_dec_test_write()
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/linux/drivers/crypto/intel/qat/qat_common/
H A Dqat_bl.c30 bl->buffers[i].len, bl_dma_dir); in qat_bl_free_bufl()
40 blout->buffers[i].len, in qat_bl_free_bufl()
110 bufl->buffers[y].len = sg->length; in __qat_bl_sgl_to_bufl()
115 bufl->buffers[y].len -= left; in __qat_bl_sgl_to_bufl()
128 struct qat_alg_buf *buffers; in __qat_bl_sgl_to_bufl() local
149 buffers = buflout->buffers; in __qat_bl_sgl_to_bufl()
168 buffers[y].len = sg->length; in __qat_bl_sgl_to_bufl()
171 buffers[y].len -= left; in __qat_bl_sgl_to_bufl()
206 buflout->buffers[i].len, in __qat_bl_sgl_to_bufl()
221 bufl->buffers[i].len, in __qat_bl_sgl_to_bufl()
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/linux/Documentation/userspace-api/media/v4l/
H A Dmmap.rst65 } *buffers;
90 buffers = calloc(reqbuf.count, sizeof(*buffers));
91 assert(buffers != NULL);
115 the buffers mapped so far. */
124 munmap(buffers[i].start, buffers[i].length);
138 } *buffers;
163 buffers = calloc(reqbuf.count, sizeof(*buffers));
164 assert(buffers != NULL);
206 munmap(buffers[i].start[j], buffers[i].length[j]);
229 applications fill and enqueue buffers, when enough buffers are stacked
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H A Dcapture.c.rst91 if (-1 == read(fd, buffers[0].start, buffers[0].length)) {
106 process_image(buffers[0].start, buffers[0].length);
287 free(buffers[0].start);
292 if (-1 == munmap(buffers[i].start, buffers[i].length))
302 free(buffers);
307 buffers = calloc(1, sizeof(*buffers));
309 if (!buffers) {
349 buffers = calloc(req.count, sizeof(*buffers));
351 if (!buffers) {
401 buffers = calloc(4, sizeof(*buffers));
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H A Duserp.rst26 No buffers (planes) are allocated beforehand, consequently they are not
27 indexed and cannot be queried like mapped buffers with the
51 :ref:`VIDIOC_QBUF <VIDIOC_QBUF>` ioctl. Although buffers are commonly
60 Filled or displayed buffers are dequeued with the
66 Applications must take care not to free buffers without dequeuing.
73 buffers, to start capturing and enter the read loop. Here the
76 and enqueue buffers, when enough buffers are stacked up output is
80 more buffers can be dequeued. By default :ref:`VIDIOC_DQBUF
94 :ref:`VIDIOC_STREAMOFF <VIDIOC_STREAMON>` removes all buffers from
99 outputted buffers.
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H A Ddev-decoder.rst12 from the client to process these buffers.
54 into ``CAPTURE`` buffers.
121 from ``OUTPUT`` buffers.
576 buffers.
719 and ``OUTPUT`` buffers and any specific timing of buffers becoming
743 To allow matching decoded ``CAPTURE`` buffers with ``OUTPUT`` buffers they
759 buffers are out-of-order compared to the ``OUTPUT`` buffers): ``CAPTURE``
781 ``CAPTURE`` buffers that originated from all the ``OUTPUT`` buffers processed
872 buffers containing decoded frames.
892 ``OUTPUT`` buffers, which means that not all of the ``OUTPUT`` buffers
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H A Dvidioc-create-bufs.rst34 This ioctl is used to create buffers for :ref:`memory mapped <mmap>`
38 over buffers is required. This ioctl can be called multiple times to
39 create buffers of different sizes.
41 To allocate the device buffers applications must initialize the relevant
43 ``count`` field must be set to the number of requested buffers, the
47 The ``format`` field specifies the image format that the buffers must be
54 sizes (for multi-planar formats) will be used for the allocated buffers.
58 The buffers created by this ioctl will have as minimum size the size
87 - The number of buffers requested or granted. If count == 0, then
89 created buffers, and it will check the validity of ``memory`` and
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H A Ddmabuf.rst10 The DMABUF framework provides a generic method for sharing buffers
19 exporting V4L2 buffers as DMABUF file descriptors.
25 importing DMA buffers through DMABUF file descriptors is supported is
29 This I/O method is dedicated to sharing DMA buffers between different
32 application. Next, these buffers are exported to the application as file
63 buffers, every plane can be associated with a different DMABUF
121 Captured or displayed buffers are dequeued with the
129 buffers, to start capturing and enter the read loop. Here the
132 and enqueue buffers, when enough buffers are stacked up output is
136 more buffers can be dequeued. By default :ref:`VIDIOC_DQBUF
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H A Dvidioc-remove-bufs.rst13 VIDIOC_REMOVE_BUFS - Removes buffers from a queue
35 remove buffers from a queue.
55 - The number of buffers to be removed with indices 'index' until 'index + count - 1'.
56 All buffers in this range must be valid and in DEQUEUED state.
62 - Type of the stream or buffers, this is the same as the struct
76 buffers will be freed and one of the error codes below will be returned:
80 One or more of the buffers in the range ``index`` to ``index + count - 1`` are not
84 One or more of the buffers in the range ``index`` to ``index + count - 1`` do not
H A Dvidioc-reqbufs.rst36 Memory mapped buffers are located in device memory and must be allocated
38 space. User buffers are allocated by applications themselves, and this
40 to setup some internal structures. Similarly, DMABUF buffers are
45 To allocate device buffers applications initialize all fields of the
48 the desired number of buffers, ``memory`` must be set to the requested
51 allocate the requested number of buffers and it stores the actual number
54 number is also possible when the driver requires more buffers to
56 buffers, one displayed and one filled by the application.
62 buffers. Note that if any buffers are still mapped or exported via DMABUF,
85 - The number of buffers requested or granted.
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H A Dvidioc-streamon.rst43 Capture hardware is disabled and no input buffers are filled (if there
44 are any empty buffers in the incoming queue) until ``VIDIOC_STREAMON``
51 If ``VIDIOC_STREAMON`` fails then any already queued buffers will remain
55 in progress, unlocks any user pointer buffers locked in physical memory,
56 and it removes all buffers from the incoming and outgoing queues. That
63 If buffers have been queued with :ref:`VIDIOC_QBUF` and
65 ``VIDIOC_STREAMON``, then those queued buffers will also be removed from
77 but ``VIDIOC_STREAMOFF`` will return queued buffers to their starting
95 The buffer ``type`` is not supported, or no buffers have been
H A Dv4l2grab.c.rst67 struct buffer *buffers;
96 buffers = calloc(req.count, sizeof(*buffers));
106 buffers[n_buffers].length = buf.length;
107 buffers[n_buffers].start = v4l2_mmap(NULL, buf.length,
111 if (MAP_FAILED == buffers[n_buffers].start) {
156 fwrite(buffers[buf.index].start, buf.bytesused, 1, fout);
165 v4l2_munmap(buffers[i].start, buffers[i].length);
H A Ddev-encoder.rst169 adjusted size of ``CAPTURE`` buffers.
375 7. Allocate buffers for both ``OUTPUT`` and ``CAPTURE`` via
393 actual number of buffers allocated.
426 adjusted to the number of allocated buffers.
465 ``OUTPUT`` buffers and any specific timing of buffers becoming
489 To allow matching encoded ``CAPTURE`` buffers with ``OUTPUT`` buffers they
502 ``CAPTURE`` buffers are out-of-order compared to the ``OUTPUT`` buffers):
529 free existing buffers that were too small.
586 2. Any ``OUTPUT`` buffers queued by the client before the
606 * dequeuing processed ``OUTPUT`` buffers, until all the buffers queued
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/linux/fs/verity/
H A Denable.c80 struct block_buffer *buffers = &_buffers[1]; in build_merkle_tree() local
99 if (!buffers[level].data) { in build_merkle_tree()
104 buffers[num_levels].data = root_hash; in build_merkle_tree()
105 buffers[num_levels].is_root_hash = true; in build_merkle_tree()
117 bytes_read = __kernel_read(filp, buffers[-1].data, in build_merkle_tree()
118 buffers[-1].filled, &pos); in build_merkle_tree()
124 if (bytes_read != buffers[-1].filled) { in build_merkle_tree()
144 buffers[level].data, in build_merkle_tree()
159 if (buffers[level].filled != 0) { in build_merkle_tree()
164 buffers[level].data, in build_merkle_tree()
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/linux/drivers/iio/buffer/
H A Dindustrialio-hw-consumer.c23 struct list_head buffers; member
58 list_for_each_entry(buf, &hwc->buffers, head) { in iio_hw_consumer_get_buffer()
72 list_add_tail(&buf->head, &hwc->buffers); in iio_hw_consumer_get_buffer()
94 INIT_LIST_HEAD(&hwc->buffers); in iio_hw_consumer_alloc()
116 list_for_each_entry(buf, &hwc->buffers, head) in iio_hw_consumer_alloc()
134 list_for_each_entry_safe(buf, n, &hwc->buffers, head) in iio_hw_consumer_free()
183 list_for_each_entry(buf, &hwc->buffers, head) { in iio_hw_consumer_enable()
192 list_for_each_entry_continue_reverse(buf, &hwc->buffers, head) in iio_hw_consumer_enable()
206 list_for_each_entry(buf, &hwc->buffers, head) in iio_hw_consumer_disable()
/linux/drivers/android/
H A Dbinder_alloc_selftest.c120 struct binder_buffer *buffers[], in binder_selftest_alloc_buf() argument
126 buffers[i] = binder_alloc_new_buf(alloc, sizes[i], 0, 0, 0); in binder_selftest_alloc_buf()
127 if (IS_ERR(buffers[i]) || in binder_selftest_alloc_buf()
128 !check_buffer_pages_allocated(alloc, buffers[i], in binder_selftest_alloc_buf()
137 struct binder_buffer *buffers[], in binder_selftest_free_buf() argument
143 binder_alloc_free_buf(alloc, buffers[seq[i]]); in binder_selftest_free_buf()
183 struct binder_buffer *buffers[BUFFER_NUM]; in binder_selftest_alloc_free() local
185 binder_selftest_alloc_buf(alloc, buffers, sizes, seq); in binder_selftest_alloc_free()
186 binder_selftest_free_buf(alloc, buffers, sizes, seq, end); in binder_selftest_alloc_free()
189 binder_selftest_alloc_buf(alloc, buffers, sizes, seq); in binder_selftest_alloc_free()
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/linux/Documentation/userspace-api/media/dvb/
H A Ddmx-reqbufs.rst38 Memory mapped buffers are located in device memory and must be allocated
40 space. User buffers are allocated by applications themselves, and this
42 to setup some internal structures. Similarly, DMABUF buffers are
47 To allocate device buffers applications initialize all fields of the
49 to the desired number of buffers, and ``size`` to the size of each
53 attempt to allocate the requested number of buffers and it stores the actual
55 number is also possible when the driver requires more buffers to
63 buffers, however this cannot succeed when any buffers are still mapped.
64 A ``count`` value of zero frees all buffers, after aborting or finishing
/linux/drivers/staging/media/starfive/camss/
H A Dstf-capture.c79 struct stf_v_buf *output = &cap->buffers; in stf_init_addrs()
244 cap->buffers.state = STF_OUTPUT_OFF; in stf_capture_init()
245 cap->buffers.buf[0] = NULL; in stf_capture_init()
246 cap->buffers.buf[1] = NULL; in stf_capture_init()
247 cap->buffers.active_buf = 0; in stf_capture_init()
251 spin_lock_init(&cap->buffers.lock); in stf_capture_init()
398 buffers); in stf_change_buffer()
460 stf_change_buffer(&cap->buffers); in stf_wr_irq_handler()
461 stf_buf_done(&cap->buffers); in stf_wr_irq_handler()
479 stf_buf_done(&cap->buffers); in stf_isp_irq_handler()
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/linux/drivers/media/pci/ivtv/
H A Divtv-queue.c35 q->buffers = 0; in ivtv_queue_init()
53 q->buffers++; in ivtv_enqueue()
68 q->buffers--; in ivtv_dequeue()
82 from->buffers--; in ivtv_queue_move_buf()
88 to->buffers++; in ivtv_queue_move_buf()
143 steal->buffers--; in ivtv_queue_move()
147 from->buffers++; in ivtv_queue_move()
187 if (s->buffers == 0) in ivtv_stream_alloc()
192 s->name, s->buffers, s->buf_size, s->buffers * s->buf_size / 1024); in ivtv_stream_alloc()
228 for (i = 0; i < s->buffers; i++) { in ivtv_stream_alloc()
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/linux/drivers/gpu/drm/imagination/
H A Dpvr_fw_trace.c34 for (thread_nr = 0; thread_nr < ARRAY_SIZE(fw_trace->buffers); thread_nr++) { in tracebuf_ctrl_init()
37 struct pvr_fw_trace_buffer *trace_buffer = &fw_trace->buffers[thread_nr]; in tracebuf_ctrl_init()
54 for (thread_nr = 0; thread_nr < ARRAY_SIZE(fw_trace->buffers); thread_nr++) { in pvr_fw_trace_init()
55 struct pvr_fw_trace_buffer *trace_buffer = &fw_trace->buffers[thread_nr]; in pvr_fw_trace_init()
89 ARRAY_SIZE(fw_trace->buffers)); in pvr_fw_trace_init()
91 for (thread_nr = 0; thread_nr < ARRAY_SIZE(fw_trace->buffers); thread_nr++) { in pvr_fw_trace_init()
94 struct pvr_fw_trace_buffer *trace_buffer = &fw_trace->buffers[thread_nr]; in pvr_fw_trace_init()
103 struct pvr_fw_trace_buffer *trace_buffer = &fw_trace->buffers[thread_nr]; in pvr_fw_trace_init()
118 struct pvr_fw_trace_buffer *trace_buffer = &fw_trace->buffers[thread_nr]; in pvr_fw_trace_fini()
460 static_assert(ARRAY_SIZE(fw_trace->buffers) <= 10, in pvr_fw_trace_debugfs_init()
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/linux/drivers/scsi/isci/
H A Dunsolicited_frame_control.c110 uf = &uf_control->buffers.array[i]; in sci_unsolicited_frame_control_construct()
136 *frame_header = &uf_control->buffers.array[frame_index].header->data; in sci_unsolicited_frame_control_get_header()
149 *frame_buffer = uf_control->buffers.array[frame_index].buffer; in sci_unsolicited_frame_control_get_buffer()
184 uf_control->buffers.array[frame_index].state = UNSOLICITED_FRAME_RELEASED; in sci_unsolicited_frame_control_release_frame()
198 while (uf_control->buffers.array[frame_get].state == UNSOLICITED_FRAME_RELEASED) { in sci_unsolicited_frame_control_release_frame()
199 uf_control->buffers.array[frame_get].state = UNSOLICITED_FRAME_EMPTY; in sci_unsolicited_frame_control_release_frame()
/linux/Documentation/ABI/testing/
H A Dsysfs-kernel-dmabuf-buffers1 What: /sys/kernel/dmabuf/buffers
5 Description: The /sys/kernel/dmabuf/buffers directory contains a
7 /sys/kernel/dmabuf/buffers/<inode_number> will contain the
12 What: /sys/kernel/dmabuf/buffers/<inode_number>/exporter_name
19 What: /sys/kernel/dmabuf/buffers/<inode_number>/size
/linux/Documentation/admin-guide/media/
H A Dcafe_ccic.rst37 buffers until the time comes to transfer data. If this option is set,
38 then worst-case-sized buffers will be allocated at module load time.
42 - dma_buf_size: The size of DMA buffers to allocate. Note that this
43 option is only consulted for load-time allocation; when buffers are
48 buffers. Normally, the driver tries to use three buffers; on faster
51 - min_buffers: The minimum number of streaming I/O buffers that the driver
56 - max_buffers: The maximum number of streaming I/O buffers; default is
/linux/drivers/gpu/drm/i915/gem/selftests/
H A Di915_gem_client_blt.c101 struct blit_buffer buffers[3]; member
261 for (i = 0; i < ARRAY_SIZE(t->buffers); i++) in tiled_blits_destroy_buffers()
262 i915_vma_put(t->buffers[i].vma); in tiled_blits_destroy_buffers()
314 for (i = 0; i < ARRAY_SIZE(t->buffers); i++) { in tiled_blits_create_buffers()
323 t->buffers[i].vma = vma; in tiled_blits_create_buffers()
324 t->buffers[i].tiling = in tiled_blits_create_buffers()
614 &t->buffers[i], t->hole + offset, in tiled_blits_prepare()
636 &t->buffers[1], t->hole + offset / 2, in tiled_blits_bounce()
637 &t->buffers[0], t->hole + 2 * offset); in tiled_blits_bounce()
642 t->buffers[2].tiling = t->buffers[0].tiling; in tiled_blits_bounce()
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