| /openbmc/linux/drivers/staging/media/atomisp/pci/base/circbuf/interface/ |
| H A D | ia_css_circbuf.h | 33 * @brief Data structure for the circular buffer.
42 * @brief Create the circular buffer.
44 * @param cb The pointer to the circular buffer.
54 * @brief Destroy the circular buffer.
56 * @param cb The pointer to the circular buffer.
62 * @brief Pop a value out of the circular buffer.
63 * Get a value at the head of the circular buffer.
67 * @param cb The pointer to the circular buffer.
75 * @brief Extract a value out of the circular buffer.
76 * Get a value at an arbitrary poistion in the circular
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| H A D | ia_css_circbuf_desc.h | 30 * @brief Test if the circular buffer is empty.
32 * @param cb_desc The pointer to the circular buffer descriptor.
46 * @brief Test if the circular buffer descriptor is full.
48 * @param cb_desc The pointer to the circular buffer
63 * @brief Initialize the circular buffer descriptor
65 * @param cb_desc The pointer circular buffer descriptor
66 * @param size The size of the circular buffer
77 * @brief Get a position in the circular buffer descriptor.
79 * @param cb The pointer to the circular buffer descriptor.
83 * @return the position in the circular buffer descriptor.
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| H A D | ia_css_circbuf_comm.h | 21 #define IA_CSS_CIRCBUF_PADDING 1 /* The circular buffer is implemented in lock-less manner, wherein
35 * @brief Data structure for the circular descriptor.
49 * @brief Data structure for the circular buffer element.
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| /openbmc/linux/drivers/staging/media/atomisp/pci/base/circbuf/src/ |
| H A D | circbuf.c | 26 * @brief Read the oldest element from the circular buffer.
28 * circular buffer is empty or not. The oldest element is
29 * also removed out from the circular buffer.
31 * @param cb The pointer to the circular buffer.
39 * @brief Shift a chunk of elements in the circular buffer.
41 * to the "chunk_src" position) are shifted in the circular buffer,
44 * @param cb The pointer to the circular buffer.
68 * @brief Create the circular buffer.
93 * @brief Destroy the circular buffer.
104 * @brief Pop a value out of the circular buffer.
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| /openbmc/linux/Documentation/core-api/ |
| H A D | circular-buffers.rst | 2 Circular Buffers
9 Linux provides a number of features that can be used to implement circular
25 (*) What is a circular buffer?
29 (*) Using memory barriers with circular buffers.
35 What is a circular buffer?
38 First of all, what is a circular buffer? A circular buffer is a buffer of
67 circular buffer would normally be a slow operation, requiring the use of a
71 Linux provides a set of macros for handling power-of-2 circular buffers. These
134 Using memory barriers with circular buffers
137 By using memory barriers in conjunction with circular buffers, you can avoid
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| /openbmc/linux/drivers/gpu/drm/msm/disp/dpu1/ |
| H A D | dpu_hw_util.h | 95 * 0x4 update y circular filter LUT
96 * 0x8 update uv circular filter LUT
100 * @ y_rgb_cir_lut_idx: y circular filter LUT index
101 * @ uv_cir_lut_idx: uv circular filter LUT index
102 * @ y_rgb_sep_lut_idx: y circular filter LUT index
105 * @ cir_lut: pointer to circular filter LUT
248 * @y_rgb_cir_lut_idx: Y/RGB circular LUT index
249 * @uv_cir_lut_idx: UV circular LUT index
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| /openbmc/linux/kernel/irq/ |
| H A D | timings.c | 40 * Currently, the interrupt timings are stored in a circular array
55 * where the interrupts are disabled and the circular buffer
59 * At this point, we read the circular buffer and we fill the irq
60 * related statistics structure. After this step, the circular array
130 * Store the index in a circular buffer
273 * Number of elements in the circular buffer: If it happens it was
277 * wrap. That could be done in a nicer way with the proper circular
407 * 'count' will depends if the circular buffer wrapped or not in __irq_timings_next_event()
416 * Copy the content of the circular buffer into another buffer in __irq_timings_next_event()
463 * circular array. in __irq_timings_store()
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| /openbmc/linux/drivers/net/wireless/intel/iwlwifi/ |
| H A D | iwl-fh.h | 48 * TFD Circular Buffers Base (CBBC) addresses
51 * circular buffers (CBs/queues) containing Transmit Frame Descriptors (TFDs)
53 * bytes from one another. Each TFD circular buffer in DRAM must be 256-byte
160 * 1) Receive Buffer Descriptor (RBD) circular buffer (CB), typically with 256
170 * Driver sets physical address [35:8] of base of RBD circular buffer
175 * the RB's corresponding RBD within the circular buffer. Driver sets
185 * enter pointers to these RBs into contiguous RBD circular buffer entries,
191 * the circular buffer. This value should initially be 0 (before preparing any
193 * wrap back to 0 at the end of the circular buffer (but don't wrap before
197 * As the device fills RBs (referenced from contiguous RBDs within the circular
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| /openbmc/linux/drivers/misc/mei/ |
| H A D | hw-me-regs.h | 141 /* H_CB_WW - Host Circular Buffer (CB) Write Window register */
145 /* ME_CB_RW - ME Circular Buffer Read Window register (read only) */
160 /* Host Circular Buffer Depth - maximum number of 32-bit entries in CB */
162 /* Host Circular Buffer Write Pointer */
164 /* Host Circular Buffer Read Pointer */
186 /* ME CB (Circular Buffer) Depth HRA (Host Read Access) - host read only
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| /openbmc/linux/include/media/ |
| H A D | demux.h | 206 * Any TS packets that match the filter settings are copied to a circular
210 * addresses within the circular buffer, but other implementations are also
215 * the start of the first undelivered TS packet within a circular buffer.
217 * TS packets have crossed the last address of the circular buffer and
219 * parameter would contain an address within the circular buffer, while the
220 * @buffer2 parameter would contain the first address of the circular buffer.
233 * is possible that the circular buffer eventually fills up. If this happens,
260 * within the circular buffer of the demux driver.
265 * circular buffer.
286 * implementation should maintain a circular buffer for received sections.
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| /openbmc/docs/designs/ |
| H A D | bios-bmc-smm-error-logging.md | 19 implement a circular buffer over a shared BIOS->BMC buffer that the BIOS can
52 protocol. The circular buffer and its header will provide some protection
64 circular buffer, the data structure of its header will look like the following:
71 … | BMC at init | Indicates the size of the region allocated for the circular queue. Written by…
74 …e BMC was unable to read the previous error logs in time to prevent the circular buffer from overf…
155 - Circular buffer processing
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| /openbmc/linux/drivers/crypto/cavium/zip/ |
| H A D | zip_device.c | 71 * queue is maintained in a circular fashion. When there is space for exactly
73 * point to the head of the queue, thus maintaining a circular queue.
105 * circular. Write sw_head's physical address to the "Next-Chunk in zip_load_instr()
116 /* Space for one cmd, pust it and make it circular queue */ in zip_load_instr()
127 /* Using Circular command queue */ in zip_load_instr()
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| /openbmc/linux/drivers/misc/ibmasm/ |
| H A D | event.c | 23 * circular buffer.
38 * Store the event in the circular event buffer, wake up any sleeping
52 /* copy the event into the next slot in the circular buffer */ in ibmasm_receive_event()
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| /openbmc/openbmc/poky/meta/lib/oeqa/core/tests/ |
| H A D | test_decorators.py | 102 expect = 'have a circular dependency'
107 # Must throw OEQADependency because circular dependency
112 msg = 'Expected OEQADependency exception having a circular dependency'
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| /openbmc/linux/include/rdma/ |
| H A D | rdmavt_cq.h | 21 * when reading indice of circular buffer that mmaped to user space.
27 * when writing indice of circular buffer that mmaped to user space.
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| /openbmc/linux/include/drm/ |
| H A D | drm_debugfs_crc.h | 48 * @head: head of circular queue
49 * @tail: tail of circular queue
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| /openbmc/u-boot/drivers/crypto/fsl/ |
| H A D | jr.h | 87 /*Circular Ring of i/p descriptors */
89 /* Circular Ring of o/p descriptors */
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| /openbmc/linux/drivers/net/wireless/intel/iwlegacy/ |
| H A D | 4965.h | 862 * up to 7 DMA channels (FIFOs). Each Tx queue is supported by a circular array
948 * TFD Circular Buffers Base (CBBC) addresses
951 * circular buffers (CBs/queues) containing Transmit Frame Descriptors (TFDs)
953 * bytes from one another. Each TFD circular buffer in DRAM must be 256-byte
979 * 1) Receive Buffer Descriptor (RBD) circular buffer (CB), typically with 256
989 * Driver sets physical address [35:8] of base of RBD circular buffer
994 * the RB's corresponding RBD within the circular buffer. Driver sets
1004 * enter pointers to these RBs into contiguous RBD circular buffer entries,
1010 * the circular buffer. This value should initially be 0 (before preparing any
1012 * wrap back to 0 at the end of the circular buffer (but don't wrap before
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| /openbmc/linux/net/dccp/ccids/lib/ |
| H A D | packet_history.h | 53 /* Subtraction a-b modulo-16, respects circular wrap-around */
77 * @loss_count: Number of entries in circular history
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| /openbmc/linux/net/dccp/ |
| H A D | ackvec.h | 54 * This implements a fixed-size circular buffer within an array and is largely
57 * @av_buf: circular buffer storage area
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| /openbmc/linux/Documentation/networking/ |
| H A D | packet_mmap.rst | 34 configurable circular buffer mapped in user space that can be used to either
68 setsockopt() ---> allocation of the circular buffer (ring)
97 See "Mapping and use of the circular buffer (ring)".
100 also the mapping of the circular buffer in the user process and
108 setsockopt() ---> allocation of the circular buffer (ring)
134 know the header size of frames used in the circular buffer.
211 circular buffer (ring) of unswappable memory.
247 account when choosing the frame_size. See "Mapping and use of the circular
402 Mapping and use of the circular buffer (ring)
406 mmap function. Even the circular buffer is compound of several physically
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| /openbmc/u-boot/arch/arm/mach-socfpga/include/mach/ |
| H A D | mailbox_s10.h | 99 #define MBOX_CMD_BUF 0x40 /* circular command buffer */
100 #define MBOX_RESP_BUF 0xc0 /* circular response buffer */
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| /openbmc/linux/scripts/kconfig/tests/preprocess/circular_expansion/ |
| H A D | __init__.py | 3 Detect circular variable expansion.
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| /openbmc/linux/include/linux/ |
| H A D | irqhandler.h | 6 * Interrupt flow handler typedefs are defined here to avoid circular
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| /openbmc/u-boot/board/xilinx/zynq/ |
| H A D | xil_io.h | 3 #ifndef XIL_IO_H /* prevent circular inclusions */
|