| /linux-6.12.1/tools/testing/selftests/mm/ |
| D | hmm-tests.c | 180 struct hmm_buffer *buffer, in hmm_dmirror_cmd() argument
187 cmd.addr = (__u64)buffer->ptr; in hmm_dmirror_cmd()
188 cmd.ptr = (__u64)buffer->mirror; in hmm_dmirror_cmd()
199 buffer->cpages = cmd.cpages; in hmm_dmirror_cmd()
200 buffer->faults = cmd.faults; in hmm_dmirror_cmd()
205 static void hmm_buffer_free(struct hmm_buffer *buffer) in hmm_buffer_free() argument
207 if (buffer == NULL) in hmm_buffer_free()
210 if (buffer->ptr) in hmm_buffer_free()
211 munmap(buffer->ptr, buffer->size); in hmm_buffer_free()
212 free(buffer->mirror); in hmm_buffer_free()
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| /linux-6.12.1/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-6.12.1/drivers/s390/char/ |
| D | sclp_rw.c | 35 * Setup a sclp write buffer. Gets a page as input (4K) and returns
37 * end of the input page. This reduces the buffer space by a few
43 struct sclp_buffer *buffer; in sclp_make_buffer() local
51 buffer = ((struct sclp_buffer *) ((addr_t) sccb + PAGE_SIZE)) - 1; in sclp_make_buffer()
52 buffer->sccb = sccb; in sclp_make_buffer()
53 buffer->retry_count = 0; in sclp_make_buffer()
54 buffer->messages = 0; in sclp_make_buffer()
55 buffer->char_sum = 0; in sclp_make_buffer()
56 buffer->current_line = NULL; in sclp_make_buffer()
57 buffer->current_length = 0; in sclp_make_buffer()
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| /linux-6.12.1/fs/configfs/ |
| D | file.c | 56 static int fill_read_buffer(struct file *file, struct configfs_buffer *buffer) in fill_read_buffer() argument
61 if (!buffer->page) in fill_read_buffer()
62 buffer->page = (char *) get_zeroed_page(GFP_KERNEL); in fill_read_buffer()
63 if (!buffer->page) in fill_read_buffer()
68 count = buffer->attr->show(buffer->item, buffer->page); in fill_read_buffer()
75 buffer->needs_read_fill = 0; in fill_read_buffer()
76 buffer->count = count; in fill_read_buffer()
83 struct configfs_buffer *buffer = file->private_data; in configfs_read_iter() local
86 mutex_lock(&buffer->mutex); in configfs_read_iter()
87 if (buffer->needs_read_fill) { in configfs_read_iter()
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| /linux-6.12.1/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-6.12.1/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-6.12.1/include/linux/ |
| D | ring_buffer.h | 24 * enum ring_buffer_type - internal ring buffer types
66 u64 ring_buffer_event_time_stamp(struct trace_buffer *buffer,
73 * will try to remove the event from the ring buffer completely
79 * ring_buffer_discard_commit(buffer, event);
81 * ring_buffer_unlock_commit(buffer, event);
83 void ring_buffer_discard_commit(struct trace_buffer *buffer,
87 * size is in bytes for each per CPU buffer.
97 bool ring_buffer_last_boot_delta(struct trace_buffer *buffer, long *text,
101 * Because the ring buffer is generic, if other users of the ring buffer get
103 * ring buffer's lock class separate.
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| /linux-6.12.1/include/linux/iio/ |
| D | buffer_impl.h | 9 #include <uapi/linux/iio/buffer.h>
10 #include <linux/iio/buffer.h>
20 * INDIO_BUFFER_FLAG_FIXED_WATERMARK - Watermark level of the buffer can not be
21 * configured. It has a fixed value which will be buffer specific.
27 * @store_to: actually store stuff to the buffer
30 * the buffer.
31 * @remove_from: remove scan from buffer. Drivers should calls this to
32 * remove a scan from a buffer.
34 * @space_available: returns the amount of bytes available in a buffer
38 * @set_length: set number of datums in buffer
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| /linux-6.12.1/drivers/dma-buf/heaps/ |
| D | cma_heap.c | 53 struct cma_heap_buffer *buffer = dmabuf->priv; in cma_heap_attach() local
61 ret = sg_alloc_table_from_pages(&a->table, buffer->pages, in cma_heap_attach()
62 buffer->pagecount, 0, in cma_heap_attach()
63 buffer->pagecount << PAGE_SHIFT, in cma_heap_attach()
76 mutex_lock(&buffer->lock); in cma_heap_attach()
77 list_add(&a->list, &buffer->attachments); in cma_heap_attach()
78 mutex_unlock(&buffer->lock); in cma_heap_attach()
86 struct cma_heap_buffer *buffer = dmabuf->priv; in cma_heap_detach() local
89 mutex_lock(&buffer->lock); in cma_heap_detach()
91 mutex_unlock(&buffer->lock); in cma_heap_detach()
[all …]
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| D | system_heap.c | 85 struct system_heap_buffer *buffer = dmabuf->priv; in system_heap_attach() local
93 table = dup_sg_table(&buffer->sg_table); in system_heap_attach()
106 mutex_lock(&buffer->lock); in system_heap_attach()
107 list_add(&a->list, &buffer->attachments); in system_heap_attach()
108 mutex_unlock(&buffer->lock); in system_heap_attach()
116 struct system_heap_buffer *buffer = dmabuf->priv; in system_heap_detach() local
119 mutex_lock(&buffer->lock); in system_heap_detach()
121 mutex_unlock(&buffer->lock); in system_heap_detach()
156 struct system_heap_buffer *buffer = dmabuf->priv; in system_heap_dma_buf_begin_cpu_access() local
159 mutex_lock(&buffer->lock); in system_heap_dma_buf_begin_cpu_access()
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| /linux-6.12.1/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()
[all …]
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| /linux-6.12.1/drivers/iio/ |
| D | industrialio-buffer.c | 6 * Handling of buffer allocation / resizing.
34 #include <linux/iio/buffer.h>
45 struct iio_buffer *buffer; member
99 /* drain the buffer if it was disabled */ in iio_buffer_ready()
128 * iio_buffer_read() - chrdev read for buffer access
130 * @buf: Destination buffer for iio buffer read
134 * This function relies on all buffer implementations having an
144 struct iio_buffer *rb = ib->buffer; in iio_buffer_read()
164 * buffer, so signal end of file now. in iio_buffer_read()
213 struct iio_buffer *rb = ib->buffer; in iio_buffer_write()
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| /linux-6.12.1/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 */
37 static int pnp_printf(pnp_info_buffer_t * buffer, char *fmt, ...) in pnp_printf() argument
42 if (buffer->stop || buffer->error) in pnp_printf()
45 res = vsnprintf(buffer->curr, buffer->len - buffer->size, fmt, args); in pnp_printf()
47 if (buffer->size + res >= buffer->len) { in pnp_printf()
48 buffer->stop = 1; in pnp_printf()
51 buffer->curr += res; in pnp_printf()
52 buffer->size += res; in pnp_printf()
[all …]
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| /linux-6.12.1/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-6.12.1/drivers/gpu/drm/ |
| D | drm_client.c | 31 * GEM drivers which provide a GEM based dumb buffer with a virtual address are supported.
157 * is fbdev which cannot free the buffer if userspace has open file descriptors.
268 static void drm_client_buffer_delete(struct drm_client_buffer *buffer) in drm_client_buffer_delete() argument
270 if (buffer->gem) { in drm_client_buffer_delete()
271 drm_gem_vunmap_unlocked(buffer->gem, &buffer->map); in drm_client_buffer_delete()
272 drm_gem_object_put(buffer->gem); in drm_client_buffer_delete()
275 kfree(buffer); in drm_client_buffer_delete()
285 struct drm_client_buffer *buffer; in drm_client_buffer_create() local
289 buffer = kzalloc(sizeof(*buffer), GFP_KERNEL); in drm_client_buffer_create()
290 if (!buffer) in drm_client_buffer_create()
[all …]
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| /linux-6.12.1/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()
[all …]
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| /linux-6.12.1/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()
[all …]
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| /linux-6.12.1/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-6.12.1/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-6.12.1/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-6.12.1/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-6.12.1/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-6.12.1/kernel/trace/ |
| D | ring_buffer.c | 3 * Generic ring buffer
38 * The "absolute" timestamp in the buffer is only 59 bits.
63 * The ring buffer header is special. We must manually up keep it.
85 * The ring buffer is made up of a list of pages. A separate list of pages is
86 * allocated for each CPU. A writer may only write to a buffer that is
88 * from any per cpu buffer.
90 * The reader is special. For each per cpu buffer, the reader has its own
92 * page is swapped with another page in the ring buffer.
96 * again (as long as it is out of the ring buffer).
101 * |reader| RING BUFFER
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| /linux-6.12.1/Documentation/userspace-api/ |
| D | perf_ring_buffer.rst | 4 Perf ring buffer
11 2. Ring buffer implementation
13 2.2 Ring buffer for different tracing modes
18 2.3 Accessing buffer
21 2.3.3 Writing samples into buffer
22 2.3.4 Reading samples from buffer
25 3. The mechanism of AUX ring buffer
34 The ring buffer is a fundamental mechanism for data transfer. perf uses
36 kind of ring buffer which is so called auxiliary (AUX) ring buffer also
40 The ring buffer implementation is critical but it's also a very
[all …]
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| /linux-6.12.1/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()
[all …]
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