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/linux-6.8/Documentation/devicetree/bindings/arm/
Darm,embedded-trace-extension.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
4 ---
5 $id: http://devicetree.org/schemas/arm/arm,embedded-trace-extension.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: ARM Embedded Trace Extensions
11 - Suzuki K Poulose <suzuki.poulose@arm.com>
12 - Mathieu Poirier <mathieu.poirier@linaro.org>
15 Arm Embedded Trace Extension(ETE) is a per CPU trace component that
18 The trace generated by the ETE could be stored via legacy CoreSight
19 components (e.g, TMC-ETR) or other means (e.g, using a per CPU buffer
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/linux-6.8/drivers/hwtracing/coresight/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
14 and trace drivers to register themselves with. It's intended to build
17 trace source gets enabled.
27 responsible for transporting and collecting the trace data
28 respectively. Link and sinks are dynamically aggregated with a trace
29 entity at run time to form a complete trace path.
32 modules will be called coresight-funnel and coresight-replicator.
39 This enables support for the Trace Memory Controller driver.
40 Depending on its configuration the device can act as a link (embedded
41 trace router - ETR) or sink (embedded trace FIFO). The driver
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Dcoresight-etm4x-core.c1 // SPDX-License-Identifier: GPL-2.0
25 #include <linux/coresight-pmu.h>
34 #include <linux/clk/clk-conf.h>
42 #include "coresight-etm4x.h"
43 #include "coresight-etm-perf.h"
44 #include "coresight-etm4x-cfg.h"
45 #include "coresight-self-hosted-trace.h"
46 #include "coresight-syscfg.h"
47 #include "coresight-trace-id.h"
53 #define PARAM_PM_SAVE_FIRMWARE 0 /* save self-hosted state as per firmware */
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/linux-6.8/arch/powerpc/include/asm/
Dreg.h1 /* SPDX-License-Identifier: GPL-2.0 */
6 * number used in the Programming Environments Manual For 32-Bit
17 #include <asm/asm-const.h>
18 #include <asm/feature-fixups.h>
51 #define MSR_BE_LG 9 /* Branch Trace */
74 /* so tests for these bits fail on 32-bit */
101 #define MSR_BE __MASK(MSR_BE_LG) /* Branch Trace */
116 #define MSR_TS_N 0 /* Non-transactional */
161 /* Power Management - Processor Stop Status and Control Register Fields */
165 #define PSSCR_PSLL_MASK 0x000F0000 /* Power-Saving Level Limit */
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/linux-6.8/arch/arm/mm/
DKconfig1 # SPDX-License-Identifier: GPL-2.0
17 A 32-bit RISC microprocessor based on the ARM7 processor core
36 A 32-bit RISC processor with 8kByte Cache, Write Buffer and
53 A 32-bit RISC processor with 8KB cache or 4KB variants,
69 A 32-bit RISC microprocessor based on the ARM9 processor core
182 ARM940T is a member of the ARM9TDMI family of general-
184 instruction and 4KB data cases, each with a 4-word line
190 # ARM946E-S
201 ARM946E-S is a member of the ARM9E-S family of high-
202 performance, 32-bit system-on-chip processor solutions.
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/linux-6.8/Documentation/networking/
Dphy.rst18 amounts of redundant code. Also, on embedded systems with multiple (and
26 #. Increase code-reuse
27 #. Increase overall code-maintainability
67 for one of the users. (e.g. "git grep fsl,.*-mdio arch/powerpc/boot/dts/")
72 The Reduced Gigabit Medium Independent Interface (RGMII) is a 12-pin
84 or the PCB traces insert the correct 1.5-2ns delay
97 * PHY devices may offer sub-nanosecond granularity in how they allow a
99 precision may be required to account for differences in PCB trace lengths
115 PHY_INTERFACE_MODE_RGMII, it should make sure that the MAC-level delays are
130 -----------------------------------------
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/linux-6.8/init/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
8 - Re-run Kconfig when the compiler is updated
13 - Ensure full rebuild when the compiler is updated
14 include/linux/compiler-version.h contains this option in the comment
16 auto-generated dependency. When the compiler is updated, syncconfig
20 def_bool $(success,test "$(cc-name)" = GCC)
24 default $(cc-version) if CC_IS_GCC
28 def_bool $(success,test "$(cc-name)" = Clang)
32 default $(cc-version) if CC_IS_CLANG
36 def_bool $(success,test "$(as-name)" = GNU)
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/linux-6.8/Documentation/admin-guide/
Dkernel-parameters.txt16 force -- enable ACPI if default was off
17 on -- enable ACPI but allow fallback to DT [arm64,riscv64]
18 off -- disable ACPI if default was on
19 noirq -- do not use ACPI for IRQ routing
20 strict -- Be less tolerant of platforms that are not
22 rsdt -- prefer RSDT over (default) XSDT
23 copy_dsdt -- copy DSDT to memory
37 If set to vendor, prefer vendor-specific driver
69 Documentation/firmware-guide/acpi/debug.rst for more information about
127 Format: <byte> or <bitmap-list>
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/linux-6.8/drivers/bluetooth/
Dbtintel.c1 // SPDX-License-Identifier: GPL-2.0-or-later
76 if (skb->len != sizeof(*bda)) { in btintel_check_bdaddr()
79 return -EIO; in btintel_check_bdaddr()
82 bda = (struct hci_rp_read_bd_addr *)skb->data; in btintel_check_bdaddr()
89 if (!bacmp(&bda->bdaddr, BDADDR_INTEL)) { in btintel_check_bdaddr()
91 &bda->bdaddr); in btintel_check_bdaddr()
92 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); in btintel_check_bdaddr()
200 if (err == -ENODATA) in btintel_set_diag()
270 if (skb->len != 13) { in btintel_hw_error()
276 bt_dev_err(hdev, "Exception info %s", (char *)(skb->data + 1)); in btintel_hw_error()
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/linux-6.8/
DMAINTAINERS5 ---------------------------------------------------
21 W: *Web-page* with status/info
23 B: URI for where to file *bugs*. A web-page with detailed bug
28 patches to the given subsystem. This is either an in-tree file,
29 or a URI. See Documentation/maintainer/maintainer-entry-profile.rst
46 N: [^a-z]tegra all files whose path contains tegra
64 ----------------
83 3WARE SAS/SATA-RAID SCSI DRIVERS (3W-XXXX, 3W-9XXX, 3W-SAS)
85 L: linux-scsi@vger.kernel.org
88 F: drivers/scsi/3w-*
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/linux-6.8/include/linux/
Dkvm_host.h1 /* SPDX-License-Identifier: GPL-2.0-only */
60 * Bit 63 of the memslot generation number is an "update in-progress flag",
74 * memslot update is in-progress, and to prevent cache hits *after* updating
121 * translated to pfn - it is not in slot or failed to
151 #define KVM_ERR_PTR_BAD_PAGE (ERR_PTR(-ENOENT))
163 * Architecture-independent vcpu->requests bit members
164 * Bits 3-7 are reserved for more arch-independent bits.
177 * kick may have set vcpu->mode to EXITING_GUEST_MODE, and so there's no
183 …BUILD_BUG_ON((unsigned)(nr) >= (sizeof_field(struct kvm_vcpu, requests) * 8) - KVM_REQUEST_ARCH_BA…
305 return !!map->hva; in kvm_vcpu_mapped()
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/linux-6.8/Documentation/filesystems/
Dproc.rst1 .. SPDX-License-Identifier: GPL-2.0
24 1.1 Process-Specific Subdirectories
36 3 Per-Process Parameters
37 3.1 /proc/<pid>/oom_adj & /proc/<pid>/oom_score_adj - Adjust the oom-killer
39 3.2 /proc/<pid>/oom_score - Display current oom-killer score
40 3.3 /proc/<pid>/io - Display the IO accounting fields
41 3.4 /proc/<pid>/coredump_filter - Core dump filtering settings
42 3.5 /proc/<pid>/mountinfo - Information about mounts
44 3.7 /proc/<pid>/task/<tid>/children - Information about task children
45 3.8 /proc/<pid>/fdinfo/<fd> - Information about opened file
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/linux-6.8/tools/include/uapi/linux/
Dbpf.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /* Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com
21 #define BPF_DW 0x18 /* double word (64-bit) */
22 #define BPF_MEMSX 0x80 /* load with sign extension */
23 #define BPF_ATOMIC 0xc0 /* atomic memory ops - op type in immediate */
24 #define BPF_XADD 0xc0 /* exclusive add - legacy name */
32 #define BPF_TO_LE 0x00 /* convert to little-endian */
33 #define BPF_TO_BE 0x08 /* convert to big-endian */
51 #define BPF_CMPXCHG (0xf0 | BPF_FETCH) /* atomic compare-and-write */
69 /* BPF has 10 general purpose 64-bit registers and stack frame. */
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/linux-6.8/include/uapi/linux/
Dbpf.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /* Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com
21 #define BPF_DW 0x18 /* double word (64-bit) */
22 #define BPF_MEMSX 0x80 /* load with sign extension */
23 #define BPF_ATOMIC 0xc0 /* atomic memory ops - op type in immediate */
24 #define BPF_XADD 0xc0 /* exclusive add - legacy name */
32 #define BPF_TO_LE 0x00 /* convert to little-endian */
33 #define BPF_TO_BE 0x08 /* convert to big-endian */
51 #define BPF_CMPXCHG (0xf0 | BPF_FETCH) /* atomic compare-and-write */
69 /* BPF has 10 general purpose 64-bit registers and stack frame. */
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/linux-6.8/scripts/
Dcheckpatch.pl2 # SPDX-License-Identifier: GPL-2.0
7 # (c) 2008-2010 Andy Whitcroft <apw@canonical.com>
8 # (c) 2010-2018 Joe Perches <joe@perches.com>
68 my $docsfile = "$D/../Documentation/dev-tools/checkpatch.rst";
71 my $allow_c99_comments = 1; # Can be overridden by --ignore C99_COMMENT_TOLERANCE
73 my $git_command ='export LANGUAGE=en_US.UTF-8; git';
87 -q, --quiet quiet
88 -v, --verbose verbose mode
89 --no-tree run without a kernel tree
90 --no-signoff do not check for 'Signed-off-by' line
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/linux-6.8/kernel/bpf/
Dverifier.c1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com
7 #include <linux/bpf-cgroup.h>
23 #include <linux/error-injection.h>
52 * The first pass is depth-first-search to check that the program is a DAG.
54 * - larger than BPF_MAXINSNS insns
55 * - if loop is present (detected via back-edge)
56 * - unreachable insns exist (shouldn't be a forest. program = one function)
57 * - out of bounds or malformed jumps
69 * All registers are 64-bit.
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/linux-6.8/drivers/net/ethernet/chelsio/cxgb4/
Dsge.c4 * Copyright (c) 2003-2014 Chelsio Communications, Inc. All rights reserved.
16 * - Redistributions of source code must retain the above
20 * - Redistributions in binary form must reproduce the above
40 #include <linux/dma-mapping.h>
68 # define FL_PG_ORDER (16 - PAGE_SHIFT)
115 #define NOMEM_TMR_IDX (SGE_NTIMERS - 1)
118 * Suspension threshold for non-Ethernet Tx queues. We require enough room
141 * buffer). We currently only support two sizes for 1500- and 9000-byte MTUs.
151 struct sge *s = &adapter->sge; in fl_mtu_bufsize()
153 return ALIGN(s->pktshift + ETH_HLEN + VLAN_HLEN + mtu, s->fl_align); in fl_mtu_bufsize()
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/linux-6.8/fs/nfsd/
Dnfs4state.c58 #include "trace.h"
106 * A waitqueue for all in-progress 4.0 CLOSE operations that are waiting for
139 rc = -ENOMEM; in nfsd4_create_laundry_wq()
150 return ses->se_flags & NFS4_SESSION_DEAD; in is_session_dead()
155 if (atomic_read(&ses->se_ref) > ref_held_by_me) in mark_session_dead_locked()
157 ses->se_flags |= NFS4_SESSION_DEAD; in mark_session_dead_locked()
163 return clp->cl_time == 0; in is_client_expired()
169 if (clp->cl_state != NFSD4_ACTIVE) in nfsd4_dec_courtesy_client_count()
170 atomic_add_unless(&nn->nfsd_courtesy_clients, -1, 0); in nfsd4_dec_courtesy_client_count()
175 struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id); in get_client_locked()
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/linux-6.8/kernel/events/
Dcore.c1 // SPDX-License-Identifier: GPL-2.0
6 * Copyright (C) 2008-2011 Red Hat, Inc., Ingo Molnar
7 * Copyright (C) 2008-2011 Red Hat, Inc., Peter Zijlstra
75 struct task_struct *p = tfc->p; in remote_function()
78 /* -EAGAIN */ in remote_function()
87 tfc->ret = -ESRCH; /* No such (running) process */ in remote_function()
92 tfc->ret = tfc->func(tfc->info); in remote_function()
96 * task_function_call - call a function on the cpu on which a task runs
106 * returns @func return value or -ESRCH or -ENXIO when the process isn't running
115 .ret = -EAGAIN, in task_function_call()
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/linux-6.8/block/
Dbfq-iosched.c1 // SPDX-License-Identifier: GPL-2.0-or-later
16 * BFQ is a proportional-share I/O scheduler, with some extra
17 * low-latency capabilities. BFQ also supports full hierarchical
20 * limitations can be found in Documentation/block/bfq-iosched.rst.
22 * BFQ is a proportional-share storage-I/O scheduling algorithm based
23 * on the slice-by-slice service scheme of CFQ. But BFQ assigns
25 * time slices. The device is not granted to the in-service process
31 * B-WF2Q+, to schedule processes according to their budgets. More
33 * process/queue is assigned a user-configurable weight, and B-WF2Q+
36 * B-WF2Q+, BFQ can afford to assign high budgets to I/O-bound
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