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/openbmc/docs/designs/
H A Dphosphor-hwmon-io-uring.md1 # Using io_uring in BMCs for asynchronous sensor reads
14 Currently, OpenBMC has code that performs I2C reads for sensors that may take
27 sensor reads for OpenBMC.
30 method for preventing sensors from blocking all other sensor reads and D-Bus if
38 By using io_uring, the asynchronous sensor reads will need to maintain the same
39 accuracy as the current, synchronous reads in each of the daemons. Potential
47 The focus of this project is to add asynchronous sensor reads to the
49 sensor reads into dbus-sensors.
63 as well the addition of a caching layer for the results from the sensor reads.
65 In mainloop.cpp currently, the `read()` function, which reads hwmon sysfs
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/openbmc/qemu/contrib/plugins/
H A Dhotpages.c44 uint64_t reads; member
58 r = (ea->reads + ea->writes) > (eb->reads + eb->writes) ? -1 : 1; in cmp_access_count()
61 r = ea->reads > eb->reads ? -1 : 1; in cmp_access_count()
78 g_autoptr(GString) report = g_string_new("Addr, RCPUs, Reads, WCPUs, Writes\n"); in plugin_exit()
94 rec->cpu_read, rec->reads, in plugin_exit()
144 count->reads++; in vcpu_haddr()
175 if (g_strcmp0(tokens[1], "reads") == 0) { in qemu_plugin_install()
H A Dhwprofile.c28 uint64_t reads; member
78 return ea->totals.reads + ea->totals.writes > in sort_cmp()
79 eb->totals.reads + eb->totals.writes ? -1 : 1; in sort_cmp()
93 rec->cpu_read, rec->reads); in fmt_iocount_record()
117 g_string_append_printf(report, ", RCPUs, Reads"); in plugin_exit()
192 count->reads++; in inc_count()
/openbmc/qemu/tests/tcg/multiarch/system/
H A Dvalidate-memory-counts.py49 Region Base, Reads, Writes, Seen all
74 reads = int(parts[1])
78 total_reads += reads
124 print("Fail: The memory reads and writes count does not match.")
125 print(f"Expected Reads: {exp_reads}, Actual Reads: {preads}")
/openbmc/phosphor-hwmon/
H A Denv.hpp32 /** @brief Reads an environment variable
34 * Reads the environment for that key
48 /** @brief Reads an environment variable
50 * Reads <prefix>_<sensor.first><sensor.second>
71 /** @brief Reads an environment variable, and takes type and id separately
/openbmc/u-boot/arch/x86/include/asm/
H A Dearly_cmos.h15 * This reads from CMOS for the 8-bit data stored at the given address.
25 * This reads from CMOS for the 16-bit data stored at the given address.
35 * This reads from CMOS for the 32-bit data stored at the given address.
/openbmc/qemu/tests/qemu-iotests/
H A D0174 # Simple backing file reads
57 # Some clusters with alternating backing file/image file reads
75 # Some clusters with alternating backing file/image file reads
87 # Some clusters with alternating backing file/image file reads
H A D01858 # Some clusters with alternating backing file/image file reads
76 # Some clusters with alternating backing file/image file reads
91 # Some clusters with alternating backing file/image file reads
H A D01966 # Some clusters with alternating backing file/image file reads
84 # Some clusters with alternating backing file/image file reads
116 # Some clusters with alternating backing file/image file reads
H A D02067 # Some clusters with alternating backing file/image file reads
85 # Some clusters with alternating backing file/image file reads
100 # Some clusters with alternating backing file/image file reads
/openbmc/u-boot/drivers/mtd/nand/raw/
H A Dnand_spl_loaders.c47 * reads. Note: This does not support runtime detected FLASH yet, but
61 * function in the simple code. On NAND which allows subpage reads
86 * Non page aligned reads go to the scratch buffer. in nand_spl_read_block()
87 * Page aligned reads go directly to the destination. in nand_spl_read_block()
/openbmc/qemu/tests/qtest/
H A Dlibqtest-single.h133 * Reads an 8-bit value from an I/O port.
146 * Reads a 16-bit value from an I/O port.
159 * Reads a 32-bit value from an I/O port.
220 * Reads an 8-bit value from guest memory.
233 * Reads a 16-bit value from guest memory.
246 * Reads a 32-bit value from guest memory.
259 * Reads a 64-bit value from guest memory.
/openbmc/openbmc-tools/dbus_sensor_tester/
H A Dmain.cpp17 size_t reads = 0; variable
47 if (reads > 0) { in on_loop()
48 std::cout << "Read " << reads << " sensor updates\n"; in on_loop()
49 reads = 0; in on_loop()
119 reads++; in main()
/openbmc/qemu/replay/
H A Dreplay-internal.h135 /*! Reads data type from the file and stores it in the
148 /*! Reads next clock value from the file.
173 /*! Reads input event from the log */
186 /*! Reads char event read from the file. */
195 /*! Reads network from the file. */
/openbmc/qemu/target/hexagon/
H A Dattribs_def.h.inc114 DEF_ATTRIB(IMPLICIT_READS_PC, "Reads the PC register", "", "")
115 DEF_ATTRIB(IMPLICIT_READS_P0, "Reads the P0 register", "", "")
116 DEF_ATTRIB(IMPLICIT_READS_P1, "Reads the P1 register", "", "")
117 DEF_ATTRIB(IMPLICIT_READS_P2, "Reads the P2 register", "", "")
118 DEF_ATTRIB(IMPLICIT_READS_P3, "Reads the P3 register", "", "")
120 DEF_ATTRIB(IMPLICIT_READS_SP, "Reads the SP register", "", "")
/openbmc/qemu/include/hw/i2c/
H A Dsmbus_slave.h56 * Likewise we can't distinguish between different reads, or even know
59 * byte on block reads. This call cannot fail, it should return
61 * This may be NULL if no data is read from the device. Reads will
/openbmc/qemu/include/io/
H A Dchannel-null.h35 * that discards all writes and returns EOF for all reads.
48 * and returns EOF for all reads.
/openbmc/qemu/include/system/
H A Dreplay.h79 /*! Saves or reads the clock depending on the current replay mode. */
110 * or reads the events from the file (while replaying).
144 /*! Reads char write return value from the replay log. */
146 /*! Reads information about read_all character event. */
/openbmc/obmc-console/test/
H A Dtest-console-client-can-read48 $SOCAT EXEC:"$CLIENT -i $TEST_NAME" EXEC:'grep -m1 -qF client-reads-this' &
53 echo client-reads-this > remote
/openbmc/qemu/hw/vfio/
H A Dpci-quirks.h22 * pass reads and writes through to hardware until a value matching the
57 * through a region within a BAR. When enabled, reads and writes are
/openbmc/libmctp/docs/bindings/
H A Dvendor-ibm-astlpc.md101 - A window of the LPC FW address space, where reads and writes are forwarded to
318 | 3 | The BMC reads the status register for IBF |
319 | 4 | If IBF is set, the BMC reads the host command from IDR |
331 | 3 | The host reads the status register for OBF |
332 | 4 | If OBF is set, the host reads the BMC command from ODR |
345 | 4 | If OBF is set, the host reads the BMC command from ODR |
348 | 7 | The host reads the status register to capture the state change |
367 3. The Rx side now owns the buffer, and reads the message from its Rx area
405 | 10 | ✓ | ✓ | ✓ | The host reads the negotiated version …
406 | 11 | | ✓ | ✓ | The host reads both `rx_size` and `tx_size` to derive the negotiated MTU…
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/openbmc/u-boot/tools/
H A Dmkexynosspl.c20 * IROM code reads first (CHECKSUM_OFFSET + 4) bytes from boot device. It then
26 * IROM code reads the below header to find out the size of the blob (total
27 * size, header size included) and its checksum. Then it reads the rest of the
57 * This utility first reads the "u-boot-spl.bin" into a buffer. In case of
/openbmc/qemu/util/
H A Dstats64.c80 /* 64-bit reads always take the lock, so they don't care about the in stat64_add32_carry()
106 /* We have to set low before high, just like stat64_min reads in stat64_min_slow()
135 /* We have to set low before high, just like stat64_max reads in stat64_max_slow()
/openbmc/u-boot/drivers/mtd/onenand/
H A Donenand_spl.c117 /* Temporary storage for non page aligned and non page sized reads. */
146 * Non page aligned reads go to the scratch buffer. in onenand_spl_read_block()
147 * Page aligned reads go directly to the destination. in onenand_spl_read_block()
/openbmc/phosphor-logging/extensions/openpower-pels/
H A Ddbus_watcher.hpp87 * Reads the property if it is on D-Bus, and sets up the match
129 * Reads the property if it is on D-Bus, and sets up the match
151 * @brief Reads the property on D-Bus, and calls
268 * Reads all properties on the interface if it is on D-Bus,
305 * @brief Reads the interface's properties on D-Bus, and

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