| /Linux-v5.10/drivers/gpu/drm/etnaviv/ |
| D | etnaviv_buffer.c | 21 * Command Buffer helper:
25 static inline void OUT(struct etnaviv_cmdbuf *buffer, u32 data) in OUT() argument
27 u32 *vaddr = (u32 *)buffer->vaddr; in OUT()
29 BUG_ON(buffer->user_size >= buffer->size); in OUT()
31 vaddr[buffer->user_size / 4] = data; in OUT()
32 buffer->user_size += 4; in OUT()
35 static inline void CMD_LOAD_STATE(struct etnaviv_cmdbuf *buffer, in CMD_LOAD_STATE() argument
40 buffer->user_size = ALIGN(buffer->user_size, 8); in CMD_LOAD_STATE()
43 OUT(buffer, VIV_FE_LOAD_STATE_HEADER_OP_LOAD_STATE | in CMD_LOAD_STATE()
46 OUT(buffer, value); in CMD_LOAD_STATE()
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| /Linux-v5.10/tools/testing/selftests/vm/ |
| D | hmm-tests.c | 122 struct hmm_buffer *buffer, in hmm_dmirror_cmd() argument
129 cmd.addr = (__u64)buffer->ptr; in hmm_dmirror_cmd()
130 cmd.ptr = (__u64)buffer->mirror; in hmm_dmirror_cmd()
141 buffer->cpages = cmd.cpages; in hmm_dmirror_cmd()
142 buffer->faults = cmd.faults; in hmm_dmirror_cmd()
147 static void hmm_buffer_free(struct hmm_buffer *buffer) in hmm_buffer_free() argument
149 if (buffer == NULL) in hmm_buffer_free()
152 if (buffer->ptr) in hmm_buffer_free()
153 munmap(buffer->ptr, buffer->size); in hmm_buffer_free()
154 free(buffer->mirror); in hmm_buffer_free()
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| /Linux-v5.10/drivers/dma-buf/heaps/ |
| D | heap-helpers.c | 15 void init_heap_helper_buffer(struct heap_helper_buffer *buffer, in init_heap_helper_buffer() argument
18 buffer->priv_virt = NULL; in init_heap_helper_buffer()
19 mutex_init(&buffer->lock); in init_heap_helper_buffer()
20 buffer->vmap_cnt = 0; in init_heap_helper_buffer()
21 buffer->vaddr = NULL; in init_heap_helper_buffer()
22 buffer->pagecount = 0; in init_heap_helper_buffer()
23 buffer->pages = NULL; in init_heap_helper_buffer()
24 INIT_LIST_HEAD(&buffer->attachments); in init_heap_helper_buffer()
25 buffer->free = free; in init_heap_helper_buffer()
28 struct dma_buf *heap_helper_export_dmabuf(struct heap_helper_buffer *buffer, in heap_helper_export_dmabuf() argument
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| /Linux-v5.10/fs/configfs/ |
| D | file.c | 58 static int fill_read_buffer(struct file *file, struct configfs_buffer *buffer) in fill_read_buffer() argument
63 if (!buffer->page) in fill_read_buffer()
64 buffer->page = (char *) get_zeroed_page(GFP_KERNEL); in fill_read_buffer()
65 if (!buffer->page) in fill_read_buffer()
70 count = buffer->attr->show(buffer->item, buffer->page); in fill_read_buffer()
77 buffer->needs_read_fill = 0; in fill_read_buffer()
78 buffer->count = count; in fill_read_buffer()
85 * @buf: buffer to fill.
93 * We call fill_read_buffer() to allocate and fill the buffer from the
95 * the beginning of the file). That should fill the entire buffer with
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| /Linux-v5.10/drivers/s390/char/ |
| D | sclp_rw.c | 42 * Setup a sclp write buffer. Gets a page as input (4K) and returns
44 * end of the input page. This reduces the buffer space by a few
50 struct sclp_buffer *buffer; in sclp_make_buffer() local
58 buffer = ((struct sclp_buffer *) ((addr_t) sccb + PAGE_SIZE)) - 1; in sclp_make_buffer()
59 buffer->sccb = sccb; in sclp_make_buffer()
60 buffer->retry_count = 0; in sclp_make_buffer()
61 buffer->messages = 0; in sclp_make_buffer()
62 buffer->char_sum = 0; in sclp_make_buffer()
63 buffer->current_line = NULL; in sclp_make_buffer()
64 buffer->current_length = 0; in sclp_make_buffer()
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| /Linux-v5.10/drivers/iio/ |
| D | industrialio-buffer.c | 6 * Handling of buffer allocation / resizing.
26 #include <linux/iio/buffer.h>
63 /* drain the buffer if it was disabled */ in iio_buffer_ready()
92 * iio_buffer_read_outer() - chrdev read for buffer access
94 * @buf: Destination buffer for iio buffer read
98 * This function relies on all buffer implementations having an
108 struct iio_buffer *rb = indio_dev->buffer; in iio_buffer_read_outer()
124 * buffer, so signal end of file now. in iio_buffer_read_outer()
162 * iio_buffer_poll() - poll the buffer to find out if it has data
174 struct iio_buffer *rb = indio_dev->buffer; in iio_buffer_poll()
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| /Linux-v5.10/drivers/android/ |
| D | binder_alloc.c | 50 static struct binder_buffer *binder_buffer_next(struct binder_buffer *buffer) in binder_buffer_next() argument
52 return list_entry(buffer->entry.next, struct binder_buffer, entry); in binder_buffer_next()
55 static struct binder_buffer *binder_buffer_prev(struct binder_buffer *buffer) in binder_buffer_prev() argument
57 return list_entry(buffer->entry.prev, struct binder_buffer, entry); in binder_buffer_prev()
61 struct binder_buffer *buffer) in binder_alloc_buffer_size() argument
63 if (list_is_last(&buffer->entry, &alloc->buffers)) in binder_alloc_buffer_size()
64 return alloc->buffer + alloc->buffer_size - buffer->user_data; in binder_alloc_buffer_size()
65 return binder_buffer_next(buffer)->user_data - buffer->user_data; in binder_alloc_buffer_size()
73 struct binder_buffer *buffer; in binder_insert_free_buffer() local
82 "%d: add free buffer, size %zd, at %pK\n", in binder_insert_free_buffer()
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| /Linux-v5.10/sound/pci/hda/ |
| D | hda_proc.c | 47 static void print_nid_array(struct snd_info_buffer *buffer, in print_nid_array() argument
58 snd_iprintf(buffer, in print_nid_array()
63 snd_iprintf(buffer, in print_nid_array()
74 static void print_nid_pcms(struct snd_info_buffer *buffer, in print_nid_pcms() argument
84 snd_iprintf(buffer, " Device: name=\"%s\", " in print_nid_pcms()
93 static void print_amp_caps(struct snd_info_buffer *buffer, in print_amp_caps() argument
100 snd_iprintf(buffer, "N/A\n"); in print_amp_caps()
103 snd_iprintf(buffer, "ofs=0x%02x, nsteps=0x%02x, stepsize=0x%02x, " in print_amp_caps()
133 static void print_amp_vals(struct snd_info_buffer *buffer, in print_amp_vals() argument
145 snd_iprintf(buffer, " ["); in print_amp_vals()
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| /Linux-v5.10/sound/pci/ca0106/ |
| D | ca0106_proc.c | 15 * Use separate card based DMA buffer for periods table list.
84 static void snd_ca0106_proc_dump_iec958( struct snd_info_buffer *buffer, u32 value) in snd_ca0106_proc_dump_iec958() argument
95 snd_iprintf(buffer, "Mode: consumer\n"); in snd_ca0106_proc_dump_iec958()
96 snd_iprintf(buffer, "Data: "); in snd_ca0106_proc_dump_iec958()
98 snd_iprintf(buffer, "audio\n"); in snd_ca0106_proc_dump_iec958()
100 snd_iprintf(buffer, "non-audio\n"); in snd_ca0106_proc_dump_iec958()
102 snd_iprintf(buffer, "Rate: "); in snd_ca0106_proc_dump_iec958()
105 snd_iprintf(buffer, "44100 Hz\n"); in snd_ca0106_proc_dump_iec958()
108 snd_iprintf(buffer, "48000 Hz\n"); in snd_ca0106_proc_dump_iec958()
111 snd_iprintf(buffer, "32000 Hz\n"); in snd_ca0106_proc_dump_iec958()
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| /Linux-v5.10/include/linux/ |
| D | ring_buffer.h | 22 * enum ring_buffer_type - internal ring buffer types
70 * will try to remove the event from the ring buffer completely
76 * ring_buffer_discard_commit(buffer, event);
78 * ring_buffer_unlock_commit(buffer, event);
80 void ring_buffer_discard_commit(struct trace_buffer *buffer,
84 * size is in bytes for each per CPU buffer.
90 * Because the ring buffer is generic, if other users of the ring buffer get
92 * ring buffer's lock class separate.
100 int ring_buffer_wait(struct trace_buffer *buffer, int cpu, int full);
101 __poll_t ring_buffer_poll_wait(struct trace_buffer *buffer, int cpu,
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| /Linux-v5.10/drivers/gpu/drm/ |
| D | drm_client.c | 31 * GEM drivers which provide a GEM based dumb buffer with a virtual address are supported.
143 * is fbdev which cannot free the buffer if userspace has open file descriptors.
233 static void drm_client_buffer_delete(struct drm_client_buffer *buffer) in drm_client_buffer_delete() argument
235 struct drm_device *dev = buffer->client->dev; in drm_client_buffer_delete()
237 drm_gem_vunmap(buffer->gem, buffer->vaddr); in drm_client_buffer_delete()
239 if (buffer->gem) in drm_client_buffer_delete()
240 drm_gem_object_put(buffer->gem); in drm_client_buffer_delete()
242 if (buffer->handle) in drm_client_buffer_delete()
243 drm_mode_destroy_dumb(dev, buffer->handle, buffer->client->file); in drm_client_buffer_delete()
245 kfree(buffer); in drm_client_buffer_delete()
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| /Linux-v5.10/drivers/pnp/ |
| D | interface.c | 26 char *buffer; /* pointer to begin of buffer */ member
27 char *curr; /* current position in buffer */
29 unsigned long len; /* total length of buffer */
36 static int pnp_printf(pnp_info_buffer_t * buffer, char *fmt, ...) in pnp_printf() argument
41 if (buffer->stop || buffer->error) in pnp_printf()
44 res = vsnprintf(buffer->curr, buffer->len - buffer->size, fmt, args); in pnp_printf()
46 if (buffer->size + res >= buffer->len) { in pnp_printf()
47 buffer->stop = 1; in pnp_printf()
50 buffer->curr += res; in pnp_printf()
51 buffer->size += res; in pnp_printf()
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| /Linux-v5.10/drivers/staging/android/ion/ |
| D | ion.c | 38 struct ion_buffer *buffer; in ion_buffer_create() local
41 buffer = kzalloc(sizeof(*buffer), GFP_KERNEL); in ion_buffer_create()
42 if (!buffer) in ion_buffer_create()
45 buffer->heap = heap; in ion_buffer_create()
46 buffer->flags = flags; in ion_buffer_create()
47 buffer->dev = dev; in ion_buffer_create()
48 buffer->size = len; in ion_buffer_create()
50 ret = heap->ops->allocate(heap, buffer, len, flags); in ion_buffer_create()
57 ret = heap->ops->allocate(heap, buffer, len, flags); in ion_buffer_create()
62 if (!buffer->sg_table) { in ion_buffer_create()
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| /Linux-v5.10/include/linux/iio/ |
| D | buffer_impl.h | 13 * INDIO_BUFFER_FLAG_FIXED_WATERMARK - Watermark level of the buffer can not be
14 * configured. It has a fixed value which will be buffer specific.
20 * @store_to: actually store stuff to the buffer
23 * the buffer.
27 * @set_length: set number of datums in buffer
28 * @enable: called if the buffer is attached to a device and the
31 * @disable: called if the buffer is attached to a device and the
33 * @release: called when the last reference to the buffer is dropped,
34 * should free all resources allocated by the buffer.
35 * @modes: Supported operating modes by this buffer type
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| /Linux-v5.10/drivers/net/ethernet/mellanox/mlx5/core/en/ |
| D | port_buffer.c | 41 void *buffer; in mlx5e_port_query_buffer() local
55 buffer = MLX5_ADDR_OF(pbmc_reg, out, buffer[i]); in mlx5e_port_query_buffer()
56 port_buffer->buffer[i].lossy = in mlx5e_port_query_buffer()
57 MLX5_GET(bufferx_reg, buffer, lossy); in mlx5e_port_query_buffer()
58 port_buffer->buffer[i].epsb = in mlx5e_port_query_buffer()
59 MLX5_GET(bufferx_reg, buffer, epsb); in mlx5e_port_query_buffer()
60 port_buffer->buffer[i].size = in mlx5e_port_query_buffer()
61 MLX5_GET(bufferx_reg, buffer, size) * port_buff_cell_sz; in mlx5e_port_query_buffer()
62 port_buffer->buffer[i].xon = in mlx5e_port_query_buffer()
63 MLX5_GET(bufferx_reg, buffer, xon_threshold) * port_buff_cell_sz; in mlx5e_port_query_buffer()
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| /Linux-v5.10/sound/usb/6fire/ |
| D | comm.c | 22 u8 *buffer, void *context, void(*handler)(struct urb *urb)) in usb6fire_comm_init_urb() argument
25 urb->transfer_buffer = buffer; in usb6fire_comm_init_urb()
55 static void usb6fire_comm_init_buffer(u8 *buffer, u8 id, u8 request, in usb6fire_comm_init_buffer() argument
58 buffer[0] = 0x01; in usb6fire_comm_init_buffer()
59 buffer[2] = request; in usb6fire_comm_init_buffer()
60 buffer[3] = id; in usb6fire_comm_init_buffer()
63 buffer[1] = 0x05; /* length (starting at buffer[2]) */ in usb6fire_comm_init_buffer()
64 buffer[4] = reg; in usb6fire_comm_init_buffer()
65 buffer[5] = vl; in usb6fire_comm_init_buffer()
66 buffer[6] = vh; in usb6fire_comm_init_buffer()
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| /Linux-v5.10/tools/wmi/ |
| D | dell-smbios-example.c | 32 static void show_buffer(struct dell_wmi_smbios_buffer *buffer) in show_buffer() argument
35 buffer->std.cmd_class, buffer->std.cmd_select, in show_buffer()
36 buffer->std.input[0], buffer->std.input[1], in show_buffer()
37 buffer->std.input[2], buffer->std.input[3], in show_buffer()
38 buffer->std.output[0], buffer->std.output[1], in show_buffer()
39 buffer->std.output[2], buffer->std.output[3]); in show_buffer()
42 static int run_wmi_smbios_cmd(struct dell_wmi_smbios_buffer *buffer) in run_wmi_smbios_cmd() argument
48 ret = ioctl(fd, DELL_WMI_SMBIOS_CMD, buffer); in run_wmi_smbios_cmd()
95 struct dell_wmi_smbios_buffer *buffer) in token_is_active() argument
99 buffer->std.cmd_class = CLASS_TOKEN_READ; in token_is_active()
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| /Linux-v5.10/drivers/acpi/acpica/ |
| D | exstorob.c | 26 * DESCRIPTION: Copy a buffer object to another buffer object.
34 u8 *buffer; in acpi_ex_store_buffer_to_buffer() local
44 /* We know that source_desc is a buffer by now */ in acpi_ex_store_buffer_to_buffer()
46 buffer = ACPI_CAST_PTR(u8, source_desc->buffer.pointer); in acpi_ex_store_buffer_to_buffer()
47 length = source_desc->buffer.length; in acpi_ex_store_buffer_to_buffer()
50 * If target is a buffer of length zero or is a static buffer, in acpi_ex_store_buffer_to_buffer()
51 * allocate a new buffer of the proper length in acpi_ex_store_buffer_to_buffer()
53 if ((target_desc->buffer.length == 0) || in acpi_ex_store_buffer_to_buffer()
55 target_desc->buffer.pointer = ACPI_ALLOCATE(length); in acpi_ex_store_buffer_to_buffer()
56 if (!target_desc->buffer.pointer) { in acpi_ex_store_buffer_to_buffer()
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| /Linux-v5.10/sound/firewire/dice/ |
| D | dice-proc.c | 11 static int dice_proc_read_mem(struct snd_dice *dice, void *buffer, in dice_proc_read_mem() argument
19 buffer, 4 * quadlets, 0); in dice_proc_read_mem()
24 be32_to_cpus(&((u32 *)buffer)[i]); in dice_proc_read_mem()
57 struct snd_info_buffer *buffer) in dice_proc_read() argument
119 snd_iprintf(buffer, "sections:\n"); in dice_proc_read()
121 snd_iprintf(buffer, " %s: offset %u, size %u\n", in dice_proc_read()
128 snd_iprintf(buffer, "global:\n"); in dice_proc_read()
129 snd_iprintf(buffer, " owner: %04x:%04x%08x\n", in dice_proc_read()
132 snd_iprintf(buffer, " notification: %08x\n", buf.global.notification); in dice_proc_read()
134 snd_iprintf(buffer, " nick name: %s\n", buf.global.nick_name); in dice_proc_read()
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| /Linux-v5.10/sound/usb/ |
| D | proc.c | 33 static void proc_audio_usbbus_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) in proc_audio_usbbus_read() argument
37 snd_iprintf(buffer, "%03d/%03d\n", chip->dev->bus->busnum, chip->dev->devnum); in proc_audio_usbbus_read()
40 static void proc_audio_usbid_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) in proc_audio_usbid_read() argument
44 snd_iprintf(buffer, "%04x:%04x\n", in proc_audio_usbid_read()
92 …ic void proc_dump_substream_formats(struct snd_usb_substream *subs, struct snd_info_buffer *buffer) in proc_dump_substream_formats() argument
102 snd_iprintf(buffer, " Interface %d\n", fp->iface); in proc_dump_substream_formats()
103 snd_iprintf(buffer, " Altset %d\n", fp->altsetting); in proc_dump_substream_formats()
104 snd_iprintf(buffer, " Format:"); in proc_dump_substream_formats()
107 snd_iprintf(buffer, " %s", in proc_dump_substream_formats()
109 snd_iprintf(buffer, "\n"); in proc_dump_substream_formats()
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| /Linux-v5.10/drivers/s390/net/ |
| D | qeth_core_mpc.h | 18 #define QETH_IPA_PDU_LEN_TOTAL(buffer) (buffer + 0x0e) argument
19 #define QETH_IPA_PDU_LEN_PDU1(buffer) (buffer + 0x26) argument
20 #define QETH_IPA_PDU_LEN_PDU2(buffer) (buffer + 0x29) argument
21 #define QETH_IPA_PDU_LEN_PDU3(buffer) (buffer + 0x3a) argument
23 #define QETH_IPA_CMD_DEST_ADDR(buffer) (buffer + 0x2c) argument
500 char *buffer; member
855 #define QETH_CM_ENABLE_ISSUER_RM_TOKEN(buffer) (buffer + 0x2c) argument
856 #define QETH_CM_ENABLE_FILTER_TOKEN(buffer) (buffer + 0x53) argument
857 #define QETH_CM_ENABLE_USER_DATA(buffer) (buffer + 0x5b) argument
859 #define QETH_CM_ENABLE_RESP_FILTER_TOKEN(buffer) \ argument
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| /Linux-v5.10/Documentation/core-api/ |
| D | circular-buffers.rst | 16 buffer don't want to share a lock.
25 (*) What is a circular buffer?
35 What is a circular buffer?
38 First of all, what is a circular buffer? A circular buffer is a buffer of
42 buffer.
45 the buffer.
47 Typically when the tail pointer is equal to the head pointer, the buffer is
48 empty; and the buffer is full when the head pointer is one less than the tail
53 indices should be wrapped to 0 when they reach the end of the buffer, thus
54 allowing an infinite amount of data to flow through the buffer.
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| /Linux-v5.10/kernel/trace/ |
| D | ring_buffer.c | 3 * Generic ring buffer
34 * The ring buffer header is special. We must manually up keep it.
56 * The ring buffer is made up of a list of pages. A separate list of pages is
57 * allocated for each CPU. A writer may only write to a buffer that is
59 * from any per cpu buffer.
61 * The reader is special. For each per cpu buffer, the reader has its own
63 * page is swapped with another page in the ring buffer.
67 * again (as long as it is out of the ring buffer).
72 * |reader| RING BUFFER
83 * |reader| RING BUFFER
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| /Linux-v5.10/drivers/iio/buffer/ |
| D | industrialio-buffer-dmaengine.c | 17 #include <linux/iio/buffer.h>
19 #include <linux/iio/buffer-dma.h>
20 #include <linux/iio/buffer-dmaengine.h>
23 * The IIO DMAengine buffer combines the generic IIO DMA buffer infrastructure
24 * with the DMAengine framework. The generic IIO DMA buffer infrastructure is
25 * used to manage the buffer memory and implement the IIO buffer operations
27 * this results in a device independent fully functional DMA buffer
43 struct iio_buffer *buffer) in iio_buffer_to_dmaengine_buffer() argument
45 return container_of(buffer, struct dmaengine_buffer, queue.buffer); in iio_buffer_to_dmaengine_buffer()
65 iio_buffer_to_dmaengine_buffer(&queue->buffer); in iio_dmaengine_buffer_submit_block()
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| /Linux-v5.10/drivers/media/tuners/ |
| D | tea5767.c | 133 unsigned char *buffer) in tea5767_status_dump() argument
137 if (TEA5767_READY_FLAG_MASK & buffer[0]) in tea5767_status_dump()
142 if (TEA5767_BAND_LIMIT_MASK & buffer[0]) in tea5767_status_dump()
147 div = ((buffer[0] & 0x3f) << 8) | buffer[1]; in tea5767_status_dump()
164 buffer[0] = (div >> 8) & 0x3f; in tea5767_status_dump()
165 buffer[1] = div & 0xff; in tea5767_status_dump()
170 if (TEA5767_STEREO_MASK & buffer[2]) in tea5767_status_dump()
175 tuner_info("IF Counter = %d\n", buffer[2] & TEA5767_IF_CNTR_MASK); in tea5767_status_dump()
178 (buffer[3] & TEA5767_ADC_LEVEL_MASK) >> 4); in tea5767_status_dump()
180 tuner_info("Chip ID = %d\n", (buffer[3] & TEA5767_CHIP_ID_MASK)); in tea5767_status_dump()
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