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/Linux-v5.15/Documentation/devicetree/bindings/remoteproc/
Dst-rproc.txt1 STMicroelectronics Co-Processor Bindings
2 ----------------------------------------
6 Co-processors can be controlled from the bootloader or the primary OS. If
7 the bootloader starts a co-processor, the primary OS must detect its state
11 - compatible Should be one of:
12 "st,st231-rproc"
13 "st,st40-rproc"
14 - memory-region Reserved memory (See: ../reserved-memory/reserved-memory.txt)
15 - resets Reset lines (See: ../reset/reset.txt)
16 - reset-names Must be "sw_reset" and "pwr_reset"
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Dfsl,imx-rproc.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: "http://devicetree.org/schemas/remoteproc/fsl,imx-rproc.yaml#"
5 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
7 title: NXP i.MX Co-Processor Bindings
10 This binding provides support for ARM Cortex M4 Co-processor found on some NXP iMX SoCs.
13 - Peng Fan <peng.fan@nxp.com>
18 - fsl,imx8mq-cm4
19 - fsl,imx8mm-cm4
20 - fsl,imx8mn-cm7
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Dmtk,scp.txt2 ----------------------------------------
4 This binding provides support for ARM Cortex M4 Co-processor found on some
8 - compatible Should be "mediatek,mt8183-scp"
9 - reg Should contain the address ranges for memory regions:
11 - reg-names Contains the corresponding names for the memory regions:
13 - clocks Clock for co-processor (See: ../clock/clock-bindings.txt)
14 - clock-names Contains the corresponding name for the clock. This
18 --------
22 for the rpmsg devices - but must contain the following property:
24 - mtk,rpmsg-name Contains the name for the rpmsg device. Used to match
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Dwkup_m3_rproc.txt4 The TI AM33xx and AM43xx family of devices use a small Cortex M3 co-processor
6 that cannot be controlled from the MPU. This CM3 processor requires a firmware
12 A wkup_m3 device node is used to represent the Wakeup M3 processor instance
17 --------------------
18 - compatible: Should be one of,
19 "ti,am3352-wkup-m3" for AM33xx SoCs
20 "ti,am4372-wkup-m3" for AM43xx SoCs
21 - reg: Should contain the address ranges for the two internal
25 - reg-names: Contains the corresponding names for the two memory
27 - ti,hwmods: Name of the hwmod associated with the wkupm3 device.
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/Linux-v5.15/Documentation/powerpc/
Dvas-api.rst1 .. SPDX-License-Identifier: GPL-2.0
2 .. _VAS-API:
11 Power9 processor introduced Virtual Accelerator Switchboard (VAS) which
12 allows both userspace and kernel communicate to co-processor
14 unit comprises of one or more hardware engines or co-processor types
21 Requests to the GZIP engine must be formatted as a co-processor Request
38 /dev/crypto/nx-gzip device node implemented by the VAS/NX device driver.
39 An application must open the /dev/crypto/nx-gzip device to obtain a file
58 NX-GZIP Device Node
61 There is one /dev/crypto/nx-gzip node in the system and it provides
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/Linux-v5.15/arch/x86/include/asm/
Duser32.h1 /* SPDX-License-Identifier: GPL-2.0 */
16 u32 st_space[20]; /* 8*10 bytes for each FP-reg = 80 bytes */
31 int st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */
32 int xmm_space[32]; /* 8*16 bytes for each XMM-reg = 128 bytes */
48 int u_fpvalid; /* True if math co-processor being used. */
50 struct user_i387_ia32_struct i387; /* Math Co-processor registers. */
64 __u32 u_fpstate; /* Math Co-processor pointer. */
Duser_32.h1 /* SPDX-License-Identifier: GPL-2.0 */
8 linux we use the 'trad-core' bfd). There are quite a number of
20 DATA: The data area is stored. We use current->end_text to
21 current->brk to pick up all of the user variables, plus any memory
23 is demand-zero or if a page is totally unused, we just cover the entire
28 current->start_stack, so we round each of these off in order to be able
38 * interacting with the FXSR-format floating point environment. Floating
53 long st_space[20]; /* 8*10 bytes for each FP-reg = 80 bytes */
67 long st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */
68 long xmm_space[32]; /* 8*16 bytes for each XMM-reg = 128 bytes */
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Duser_64.h1 /* SPDX-License-Identifier: GPL-2.0 */
22 DATA: The data area is stored. We use current->end_text to
23 current->brk to pick up all of the user variables, plus any memory
25 is demand-zero or if a page is totally unused, we just cover the entire
30 current->start_stack, so we round each of these off in order to be able
39 * interacting with the FXSR-format floating point environment. Floating
45 * x86-64 support by Andi Kleen.
61 __u32 st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */
62 __u32 xmm_space[64]; /* 16*16 bytes for each XMM-reg = 256 bytes */
99 /* When the kernel dumps core, it starts by dumping the user struct -
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/Linux-v5.15/arch/sh/include/asm/
Duser.h1 /* SPDX-License-Identifier: GPL-2.0 */
11 * linux we use the `trad-core' bfd). The file contents are as follows:
19 * data: The data segment follows next. We use current->end_text to
20 * current->brk to pick up all of the user variables, plus any memory
22 * page is demand-zero or if a page is totally unused, we just cover
27 * current->start_stack, so we round each of these in order to be able
40 struct user_fpu_struct fpu; /* Math Co-processor registers */
41 int u_fpvalid; /* True if math co-processor being used */
50 struct user_fpu_struct* u_fpstate; /* Math Co-processor pointer */
/Linux-v5.15/drivers/crypto/chelsio/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "Chelsio Crypto Co-processor Driver"
12 The Chelsio Crypto Co-processor driver for T6 adapters.
20 Please send feedback to <linux-bugs@chelsio.com>.
/Linux-v5.15/kernel/
Dcpu_pm.c1 // SPDX-License-Identifier: GPL-2.0-only
62 * cpu_pm_register_notifier - register a driver with cpu_pm
83 * cpu_pm_unregister_notifier - unregister a driver with cpu_pm
103 * cpu_pm_enter - CPU low power entry notifier
111 * co-processor, interrupt controller and its PM extensions, local CPU
124 * cpu_pm_exit - CPU low power exit notifier
129 * Notified drivers can include VFP co-processor, interrupt controller
142 * cpu_cluster_pm_enter - CPU cluster low power entry notifier
149 * domain. Notified drivers can include VFP co-processor, interrupt controller
164 * cpu_cluster_pm_exit - CPU cluster low power exit notifier
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/Linux-v5.15/arch/m68k/include/asm/
Duser.h1 /* SPDX-License-Identifier: GPL-2.0 */
7 linux we use the 'trad-core' bfd). There are quite a number of
19 DATA: The data area is stored. We use current->end_text to
20 current->brk to pick up all of the user variables, plus any memory
22 is demand-zero or if a page is totally unused, we just cover the entire
27 current->start_stack, so we round each of these off in order to be able
33 unsigned long fpregs[8*3]; /* fp0-fp7 registers */
54 /* When the kernel dumps core, it starts by dumping the user struct -
62 int u_fpvalid; /* True if math co-processor being used. */
64 struct user_m68kfp_struct m68kfp; /* Math Co-processor registers. */
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/Linux-v5.15/tools/perf/pmu-events/arch/powerpc/power9/
Dother.json45 …"BriefDescription": "The processor's data cache was reloaded from a location other than the local …
65 "BriefDescription": "Read-write data cache collisions"
90 "BriefDescription": "D-cache invalidates sent over the reload bus to the core"
95 …"BriefDescription": "The processor's Instruction cache was reloaded from the local chip's Memory d…
145 …"BriefDescription": "The processor's data cache was reloaded from local core's L2 with load hit st…
200 "BriefDescription": "Read-write data cache collisions"
255 …"BriefDescription": "The processor's data cache was reloaded from local core's L2 with load hit st…
260 "BriefDescription": "L3 CO received retry port 3 (memory only), every retry counted"
270 "BriefDescription": "L3 CO to memory port 0 with or without data"
280 …-word boundary, which causes it to require an additional slice than than what normally would be re…
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/Linux-v5.15/arch/arm/mach-mmp/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
10 Support for Marvell's PXA168/PXA910(MMP), MMP2, and MMP3 processor lines.
23 Say 'Y' here if you want to support the Marvell PXA168-based
31 Say 'Y' here if you want to support the Marvell PXA168-based
39 Say 'Y' here if you want to support the Marvell PXA168-based
47 Say 'Y' here if you want to support the Marvell PXA910-based
55 Say 'Y' here if you want to support the Marvell PXA910-based
63 Say 'Y' here if you want to support the Marvell MMP2-based
65 MMP2-based board can't be co-existed with PXA168-based &
66 PXA910-based development board. Since MMP2 is compatible to
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/Linux-v5.15/Documentation/devicetree/bindings/firmware/
Dnvidia,tegra210-bpmp.txt1 NVIDIA Tegra210 Boot and Power Management Processor (BPMP)
3 The Boot and Power Management Processor (BPMP) is a co-processor found
12 - compatible
15 - "nvidia,tegra210-bpmp"
16 - reg: physical base address and length for HW synchornization primitives
19 - interrupts: specifies the interrupt number for receiving messages ("rx")
23 - #clock-cells : Should be 1 for platforms where DRAM clock control is
29 compatible = "nvidia,tegra210-bpmp";
34 interrupt-names = "tx", "rx";
/Linux-v5.15/arch/powerpc/include/asm/
Dvas.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Copyright 2016-17 IBM Corp.
11 #include <uapi/asm/vas-api.h>
36 #define MASK_LSH(m) (__builtin_ffsl(m) - 1)
41 * Co-processor Engine type.
89 put_pid(ref->pid); in put_vas_user_win_ref()
90 put_pid(ref->tgid); in put_vas_user_win_ref()
91 if (ref->mm) in put_vas_user_win_ref()
92 mmdrop(ref->mm); in put_vas_user_win_ref()
97 mm_context_add_vas_window(ref->mm); in vas_user_win_add_mm_context()
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/Linux-v5.15/arch/arm/mm/
Dproc-v6.S1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * linux/arch/arm/mm/proc-v6.S
8 * This is the "shell" of the ARMv6 processor support.
14 #include <asm/asm-offsets.h>
16 #include <asm/pgtable-hwdef.h>
18 #include "proc-macros.S"
52 * - loc - location to jump to for soft reset
69 * Idle the processor (eg, wait for interrupt).
75 mcr p15, 0, r1, c7, c10, 4 @ DWB - WFI may enter a low-power mode
91 * - pgd_phys - physical address of new TTB
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/Linux-v5.15/arch/sparc/include/uapi/asm/
Dpsr.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
4 * the processor status register on the Sparc. This is valid
17 * ------------------------------------------------------------------------
19 * | 31-28 | 27-24 | 23-20 | 19-14 | 13 | 12 | 11-8 | 7 | 6 | 5 | 4-0 |
20 * ------------------------------------------------------------------------
26 #define PSR_PIL 0x00000f00 /* processor interrupt level */
28 #define PSR_EC 0x00002000 /* enable co-processor */
30 #define PSR_LE 0x00008000 /* SuperSparcII little-endian */
36 #define PSR_VERS 0x0f000000 /* cpu-version field */
37 #define PSR_IMPL 0xf0000000 /* cpu-implementation field */
Dpsrcompat.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
7 /* Old 32-bit PSR fields for the compatibility conversion code. */
12 #define PSR_PIL 0x00000f00 /* processor interrupt level */
14 #define PSR_EC 0x00002000 /* enable co-processor */
16 #define PSR_LE 0x00008000 /* SuperSparcII little-endian */
22 #define PSR_VERS 0x0f000000 /* cpu-version field */
23 #define PSR_IMPL 0xf0000000 /* cpu-implementation field */
Dtraps.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
27 (0x10800000 | (((dest_addr-inst_addr)>>2)&0x3fffff))
60 #define SP_TRAP_IRQ15 0x1f /* IRQ level 15 Non-maskable */
63 #define SP_TRAP_CPDIS 0x24 /* Co-Processor Disabled */
65 #define SP_TRAP_CPEXP 0x28 /* Co-Processor Exception */
75 #define SP_TRAP_SDIVZ 0x82 /* Software Divide-by-Zero trap */
/Linux-v5.15/Documentation/staging/
Dtee.rst9 secure co-processor etc. A TEE driver handles the details needed to
14 - Registration of TEE drivers
16 - Managing shared memory between Linux and the TEE
18 - Providing a generic API to the TEE
25 User space (the client) connects to the driver by opening /dev/tee[0-9]* or
26 /dev/teepriv[0-9]*.
28 - TEE_IOC_SHM_ALLOC allocates shared memory and returns a file descriptor
34 - TEE_IOC_VERSION lets user space know which TEE this driver handles and
37 - TEE_IOC_OPEN_SESSION opens a new session to a Trusted Application.
39 - TEE_IOC_INVOKE invokes a function in a Trusted Application.
[all …]
/Linux-v5.15/Documentation/driver-api/thermal/
Dcpu-cooling-api.rst9 Copyright (c) 2012 Samsung Electronics Co., Ltd(http://www.samsung.com)
22 --------------------------------------------
30 "thermal-cpufreq-%x". This api can support multiple instances of cpufreq
42 the name "thermal-cpufreq-%x" linking it with a device tree node, in
54 This interface function unregisters the "thermal-cpufreq-%x" cooling device.
63 supported currently). This power model requires that the operating-points of
70 The dynamic power consumption of a processor depends on many factors.
71 For a given processor implementation the primary factors are:
73 - The time the processor spends running, consuming dynamic power, as
76 - The voltage and frequency levels as a result of DVFS. The DVFS
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/Linux-v5.15/Documentation/devicetree/bindings/soc/ti/
Dwkup_m3_ipc.txt4 The TI AM33xx and AM43xx family of devices use a small Cortex M3 co-processor
7 C-states for CPU Idle. Once the wkup_m3_ipc driver uses the wkup_m3_rproc driver
18 --------------------
19 - compatible: Should be,
20 "ti,am3352-wkup-m3-ipc" for AM33xx SoCs
21 "ti,am4372-wkup-m3-ipc" for AM43xx SoCs
22 - reg: Contains the IPC register address space to communicate
23 with the Wakeup M3 processor
24 - interrupts: Contains the interrupt information for the wkup_m3
26 - ti,rproc: phandle to the wkup_m3 rproc node so the IPC driver
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/Linux-v5.15/drivers/cpufreq/
Dbrcmstb-avs-cpufreq.c32 * DVFS. The AVS firmware is running on its own co-processor. The
93 /* PMAP and P-STATE commands */
107 * unused:31-24, mdiv_p0:23-16, unused:15-14, pdiv:13-10 , ndiv_int:9-0
117 * mdiv_p4:31-24, mdiv_p3:23-16, mdiv_p2:15:8, mdiv_p1:7:0
128 /* Different P-STATES AVS supports (for GET_PSTATE/SET_PSTATE) */
148 /* Non-AVS modes are not supported */
150 /* Cannot set P-State until P-Map supplied */
152 /* Cannot change P-Map after initial P-Map set */
162 #define BRCM_AVS_CPUFREQ_PREFIX "brcmstb-avs"
163 #define BRCM_AVS_CPUFREQ_NAME BRCM_AVS_CPUFREQ_PREFIX "-cpufreq"
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/Linux-v5.15/arch/ia64/include/asm/
Dbugs.h1 /* SPDX-License-Identifier: GPL-2.0 */
3 * This is included by init/main.c to check for architecture-dependent bugs.
8 * Based on <asm-alpha/bugs.h>.
11 * David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co.
16 #include <asm/processor.h>

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