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/linux-6.8/fs/
Dchar_dev.c14 #include <linux/major.h>
36 unsigned int major; member
44 static inline int major_to_index(unsigned major) in major_to_index() argument
46 return major % CHRDEV_MAJOR_HASH_SIZE; in major_to_index()
57 if (cd->major == offset) in chrdev_show()
58 seq_printf(f, "%3d %s\n", cd->major, cd->name); in chrdev_show()
78 if (cd->major == i) in find_dynamic_major()
89 * Register a single major with a specified minor range.
91 * If major == 0 this function will dynamically allocate an unused major.
92 * If major > 0 this function will attempt to reserve the range of minors
[all …]
/linux-6.8/arch/sparc/kernel/
Dhvapi.c16 * PRE_API flag set are major 1 minor 0.
20 unsigned long major; member
81 p->major = p->minor = 0; in __put_ref()
86 * API group and desired major+minor.
93 * API group/major/minor with the hypervisor, and errors returned
96 int sun4v_hvapi_register(unsigned long group, unsigned long major, in sun4v_hvapi_register() argument
109 if (p->major == major) { in sun4v_hvapi_register()
117 hv_ret = sun4v_set_version(group, major, *minor, in sun4v_hvapi_register()
122 p->major = major; in sun4v_hvapi_register()
128 if (major == 1) { in sun4v_hvapi_register()
[all …]
Dviohs.c48 static int send_version(struct vio_driver_state *vio, u16 major, u16 minor) in send_version() argument
56 pkt.major = major; in send_version()
61 major, minor, vio->dev_class); in send_version()
75 vio->ver_table[0].major, in start_handshake()
240 u16 major) in find_by_major() argument
247 if (v->major <= major) { in find_by_major()
262 pkt->major, pkt->minor, pkt->dev_class); in process_ver_info()
270 vap = find_by_major(vio, pkt->major); in process_ver_info()
276 pkt->major = 0; in process_ver_info()
280 } else if (vap->major != pkt->major) { in process_ver_info()
[all …]
/linux-6.8/include/linux/
Dkdev_t.h10 #define MAJOR(dev) ((unsigned int) ((dev) >> MINORBITS)) macro
15 sprintf((buffer), "%u:%u\n", MAJOR(dev), MINOR(dev))
19 sprintf(buffer, "%u:%u", MAJOR(dev), MINOR(dev)); \
26 return MAJOR(dev) < 256 && MINOR(dev) < 256; in old_valid_dev()
31 return (MAJOR(dev) << 8) | MINOR(dev); in old_encode_dev()
41 unsigned major = MAJOR(dev); in new_encode_dev() local
43 return (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12); in new_encode_dev()
48 unsigned major = (dev & 0xfff00) >> 8; in new_decode_dev() local
50 return MKDEV(major, minor); in new_decode_dev()
65 return MAJOR(dev) < (1<<14) && MINOR(dev) < (1<<18); in sysv_valid_dev()
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/linux-6.8/Documentation/driver-api/firmware/
Dfirmware-usage-guidelines.rst17 versioned with at least a major/minor version. It is suggested that
19 specific name, and just the major version. The firmware version should
23 overwritten with the newest compatible major version. Newer major
25 that major number.
30 This means no major version bumps without the kernel retaining
31 backwards compatibility for the older major versions. Minor version
36 be successful, then all supported major versions in the linux-firmware
42 deprecating old major versions, then this should only be done as a
/linux-6.8/drivers/char/
Dscx200_gpio.c33 static int major = 0; /* default to dynamic major */ variable
34 module_param(major, int, 0);
35 MODULE_PARM_DESC(major, "Major device number");
98 if (major) { in scx200_gpio_init()
99 devid = MKDEV(major, 0); in scx200_gpio_init()
103 major = MAJOR(devid); in scx200_gpio_init()
128 unregister_chrdev_region(MKDEV(major, 0), MAX_PINS); in scx200_gpio_cleanup()
Dpc8736x_gpio.c32 static int major; /* default to dynamic major */ variable
33 module_param(major, int, 0);
34 MODULE_PARM_DESC(major, "Major device number");
306 if (major) { in pc8736x_gpio_init()
307 devid = MKDEV(major, 0); in pc8736x_gpio_init()
311 major = MAJOR(devid); in pc8736x_gpio_init()
318 if (!major) { in pc8736x_gpio_init()
319 major = rc; in pc8736x_gpio_init()
320 dev_dbg(&pdev->dev, "got dynamic major %d\n", major); in pc8736x_gpio_init()
346 unregister_chrdev_region(MKDEV(major,0), PC8736X_GPIO_CT); in pc8736x_gpio_cleanup()
/linux-6.8/block/
Dgenhd.c21 #include <linux/major.h>
55 /* for extended dynamic devt allocation, currently only one major is used */
160 int major; member
170 static inline int major_to_index(unsigned major) in major_to_index() argument
172 return major % BLKDEV_MAJOR_HASH_SIZE; in major_to_index()
182 if (dp->major == offset) in blkdev_show()
183 seq_printf(seqf, "%3d %s\n", dp->major, dp->name); in blkdev_show()
191 * @major: the requested major device number [1..BLKDEV_MAJOR_MAX-1]. If
192 * @major = 0, try to allocate any unused major number.
201 * The return value depends on the @major input parameter:
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/linux-6.8/arch/mips/kernel/
Drtlx-mt.c21 static int major; variable
85 major = register_chrdev(0, RTLX_MODULE_NAME, &rtlx_fops); in rtlx_module_init()
86 if (major < 0) { in rtlx_module_init()
88 return major; in rtlx_module_init()
98 dev = device_create(mt_class, NULL, MKDEV(major, i), NULL, in rtlx_module_init()
102 device_destroy(mt_class, MKDEV(major, i)); in rtlx_module_init()
130 device_destroy(mt_class, MKDEV(major, i)); in rtlx_module_init()
132 unregister_chrdev(major, RTLX_MODULE_NAME); in rtlx_module_init()
142 device_destroy(mt_class, MKDEV(major, i)); in rtlx_module_exit()
144 unregister_chrdev(major, RTLX_MODULE_NAME); in rtlx_module_exit()
/linux-6.8/drivers/staging/media/atomisp/pci/
Dcss_trace.h26 /* one tracer item: major, minor and counter. The counter value can be used for GP data */
28 u8 major; member
195 CMD_SET_ONE_MAJOR = 1, /* mask in one major. 2nd byte in the command is the major code */
196 CMD_UNSET_ONE_MAJOR = 2, /* mask out one major. 2nd byte in the command is the major code */
197 CMD_SET_ALL_MAJORS = 3, /* set the major print mask. the full mask is in the data DWORD */
238 * the last 2 MSB bits of the major field will indicates the format
266 #define PACK_TRACEPOINT(tid, major, minor, value) \ argument
267 (FIELD_TID_PACK(tid) | FIELD_MAJOR_PACK(major) | FIELD_MINOR_PACK(minor) | FIELD_VALUE_PACK(value))
269 #define PACK_QUICK_TRACEPOINT(major, minor) \ argument
270 (FIELD_FULL_MAJOR_PACK(major) | FIELD_MINOR_PACK(minor))
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/linux-6.8/drivers/gpu/drm/i915/gt/uc/
Dintel_uc_fw.c72 * Originally, the driver required an exact match major/minor/patch furmware
78 * For GuC, the major version number signifies a backwards breaking API change.
79 * So, new format GuC firmware files are labelled by their major version only.
138 * Same as with the GuC, a major version bump indicate a
205 u8 major; member
212 .major = major_, \
330 uc_fw->file_wanted.ver.major = blob->major; in __uc_fw_auto_select()
376 fw_blobs[j].blob.major, fw_blobs[j].blob.minor, in validate_fw_table_type()
379 fw_blobs[i].blob.major, fw_blobs[i].blob.minor, in validate_fw_table_type()
397 /* Next major version is good: */ in validate_fw_table_type()
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/linux-6.8/drivers/char/xillybus/
Dxillybus_class.c38 int major; member
85 dev_warn(dev, "Failed to obtain major/minors"); in xillybus_init_chrdev()
89 unit->major = MAJOR(mdev); in xillybus_init_chrdev()
102 rc = cdev_add(unit->cdev, MKDEV(unit->major, unit->lowest_minor), in xillybus_init_chrdev()
128 MKDEV(unit->major, in xillybus_init_chrdev()
157 device_destroy(&xillybus_class, MKDEV(unit->major, in xillybus_init_chrdev()
163 unregister_chrdev_region(MKDEV(unit->major, unit->lowest_minor), in xillybus_init_chrdev()
198 device_destroy(&xillybus_class, MKDEV(unit->major, minor)); in xillybus_cleanup_chrdev()
202 unregister_chrdev_region(MKDEV(unit->major, unit->lowest_minor), in xillybus_cleanup_chrdev()
219 int major = imajor(inode); in xillybus_find_inode() local
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/linux-6.8/drivers/gpu/drm/xe/
Dxe_uc_fw.c32 * "mpp version", i.e. major.minor.patch. mmp_ver() should only be used for
36 * ever contains the major version (GuC) or no version at all (HuC).
39 * The major version needs to match a major version supported by the driver (if
50 * - i915/tgl_guc_<major>.bin
53 * <major> number for GuC is checked that it matches the version inside
61 * - xe/wipplat_guc_<major>.<minor>.<patch>.bin
62 * - xe/wipplat_huc_<major>.<minor>.<patch>.bin
64 * <major> and <minor> are checked that they match the version inside
73 * - xe/plat_guc_<major>.bin
76 * <major> number for GuC is checked that it matches the version inside
[all …]
/linux-6.8/security/
Ddevice_cgroup.c36 u32 major, minor; member
113 if (walk->major != ex->major) in dev_exception_add()
141 if (walk->major != ex->major) in dev_exception_rm()
303 set_majmin(maj, ex->major); in devcgroup_seq_show()
318 * @major: device file major number, ~0 to match all
328 u32 major, u32 minor, short access) in match_exception() argument
337 if (ex->major != ~0 && ex->major != major) in match_exception()
353 * @major: device file major number, ~0 to match all
365 u32 major, u32 minor, short access) in match_exception_partial() argument
379 if (ex->major != ~0 && major != ~0 && ex->major != major) in match_exception_partial()
[all …]
/linux-6.8/drivers/net/can/usb/etas_es58x/
Des58x_devlink.c46 int major, minor, revision; in es58x_parse_sw_version() local
66 if (sscanf(prod_info, "%2u.%2u.%2u", &major, &minor, &revision) != 3) in es58x_parse_sw_version()
69 version->major = major; in es58x_parse_sw_version()
97 int major, minor; in es58x_parse_hw_rev() local
109 if (sscanf(prod_info, "%c%3u/%3u", &letter, &major, &minor) != 3) in es58x_parse_hw_rev()
113 es58x_dev->hardware_revision.major = major; in es58x_parse_hw_rev()
135 .major = -1, in es58x_parse_product_info()
141 .major = -1, in es58x_parse_product_info()
178 return sw_ver->major < 100 && sw_ver->minor < 100 && in es58x_sw_version_is_valid()
195 return isalnum(hw_rev->letter) && hw_rev->major < 1000 && in es58x_hw_revision_is_valid()
[all …]
/linux-6.8/drivers/accel/habanalabs/common/
Dsecurity.h30 * @major: number of major blocks of particular type.
33 * @major_offset: address gap between 2 consecutive major blocks of particular type,
41 * NIC<major>_UMR<minor>_<sub_minor> where major=12, minor=2, sub_minor=15.
42 * In other words, for each of 12 major numbers (i.e 0 to 11) there are
53 u32 major; member
137 u32 blk_idx, u32 major, u32 minor, u32 sub_minor);
150 * @major: major block index within block_id
151 * @minor: minor block index within the major block
155 int (*fn)(struct hl_device *hdev, u32 block_id, u32 major, u32 minor,
/linux-6.8/include/trace/events/
Dext4.h161 MAJOR(__entry->dev), MINOR(__entry->dev),
191 MAJOR(__entry->dev), MINOR(__entry->dev),
214 MAJOR(__entry->dev), MINOR(__entry->dev),
238 MAJOR(__entry->dev), MINOR(__entry->dev),
261 MAJOR(__entry->dev), MINOR(__entry->dev),
283 MAJOR(__entry->dev), MINOR(__entry->dev),
303 MAJOR(__entry->dev), MINOR(__entry->dev),
325 MAJOR(__entry->dev), MINOR(__entry->dev),
347 MAJOR(__entry->dev), MINOR(__entry->dev),
373 MAJOR(__entry->dev), MINOR(__entry->dev),
[all …]
Djbd2.h31 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->result)
53 MAJOR(__entry->dev), MINOR(__entry->dev),
112 MAJOR(__entry->dev), MINOR(__entry->dev),
132 MAJOR(__entry->dev), MINOR(__entry->dev),
160 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->tid,
205 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->tid,
242 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->tid,
285 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->tid,
322 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->tid,
351 MAJOR(__entry->dev), MINOR(__entry->dev),
[all …]
/linux-6.8/Documentation/admin-guide/cgroup-v1/
Dblkio-controller.rst36 for policy is "<major>:<minor> <bytes_per_second>"::
41 on device having major/minor number 8:16.
140 two fields specify the major and minor number of the device and
146 two fields specify the major and minor number of the device and
153 or async. First two fields specify the major and minor number of the
160 or async. First two fields specify the major and minor number of the
174 specify the major and minor number of the device, third field
189 read or write, sync or async. First two fields specify the major and
241 from service tree of the device. First two fields specify the major
257 echo "<major>:<minor> <rate_bytes_per_second>" > /cgrp/blkio.throttle.read_bps_device
[all …]
/linux-6.8/drivers/cpufreq/
Dsti-cpufreq.c65 dev_err(dev, "No major number offset provided in %pOF [%d]\n", in sti_cpufreq_fetch_major()
72 dev_err(dev, "Failed to read major number from syscon [%d]\n", in sti_cpufreq_fetch_major()
158 int pcode, substrate, major, minor; in sti_cpufreq_set_opp_info() local
201 major = sti_cpufreq_fetch_major(); in sti_cpufreq_set_opp_info()
202 if (major < 0) { in sti_cpufreq_set_opp_info()
203 dev_err(dev, "Failed to obtain major version\n"); in sti_cpufreq_set_opp_info()
204 /* Use default major number */ in sti_cpufreq_set_opp_info()
205 major = DEFAULT_VERSION; in sti_cpufreq_set_opp_info()
217 version[0] = BIT(major); in sti_cpufreq_set_opp_info()
227 dev_dbg(dev, "pcode: %d major: %d minor: %d substrate: %d\n", in sti_cpufreq_set_opp_info()
[all …]
/linux-6.8/tools/lib/bpf/
Dlibbpf_common.h21 /* Mark a symbol as deprecated when libbpf version is >= {major}.{minor} */
22 #define LIBBPF_DEPRECATED_SINCE(major, minor, msg) \ argument
23 __LIBBPF_MARK_DEPRECATED_ ## major ## _ ## minor \
24 (LIBBPF_DEPRECATED("libbpf v" # major "." # minor "+: " msg))
26 #define __LIBBPF_CURRENT_VERSION_GEQ(major, minor) \ argument
27 (LIBBPF_MAJOR_VERSION > (major) || \
28 (LIBBPF_MAJOR_VERSION == (major) && LIBBPF_MINOR_VERSION >= (minor)))
/linux-6.8/Documentation/ABI/stable/
Dsysfs-hypervisor-xen34 is in the format: <class>-<major>.<minor>-<arch>
40 <major>: major guest interface version
103 The Xen version is in the format <major>.<minor><extra>
108 What: /sys/hypervisor/version/major
113 The Xen version is in the format <major>.<minor><extra>
114 This is the <major> part of it.
121 The Xen version is in the format <major>.<minor><extra>
/linux-6.8/include/uapi/sound/sof/
Dabi.h11 * MAJOR.MINOR.PATCH version number. See https://semver.org/
15 * 1) Increment MAJOR version if you make incompatible API changes. MINOR and
29 /* SOF ABI version major, minor and patch numbers */
42 #define SOF_ABI_VER(major, minor, patch) \ argument
43 (((major) << SOF_ABI_MAJOR_SHIFT) | \
/linux-6.8/Documentation/admin-guide/
Ddevices.txt3 See block major 144, 145, 146 for expansion areas.
45 devices are on major 128 and above and use the PTY
113 devices are on major 136 and above.
143 Older versions of the Linux kernel used this major
145 is no longer supported. Use major numbers 2 and 3.
147 4 block Aliases for dynamically allocated major devices to be used
208 disks (see major number 3) except that the limit on
510 (see major number 3).
521 interface (see major number 3).
629 disks (see major number 3) except that the limit on
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/linux-6.8/security/keys/encrypted-keys/
Decryptfs_format.c31 void ecryptfs_get_versions(int *major, int *minor, int *file_version) in ecryptfs_get_versions() argument
33 *major = ECRYPTFS_VERSION_MAJOR; in ecryptfs_get_versions()
51 int major, minor; in ecryptfs_fill_auth_tok() local
53 ecryptfs_get_versions(&major, &minor, NULL); in ecryptfs_fill_auth_tok()
54 auth_tok->version = (((uint16_t)(major << 8) & 0xFF00) in ecryptfs_fill_auth_tok()

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