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/linux/drivers/soc/tegra/fuse/
H A Dfuse-tegra20.c22 #include <soc/tegra/fuse.h>
24 #include "fuse.h"
30 static u32 tegra20_fuse_read_early(struct tegra_fuse *fuse, unsigned int offset) in tegra20_fuse_read_early() argument
32 return readl_relaxed(fuse->base + FUSE_BEGIN + offset); in tegra20_fuse_read_early()
37 struct tegra_fuse *fuse = args; in apb_dma_complete() local
39 complete(&fuse->apbdma.wait); in apb_dma_complete()
42 static u32 tegra20_fuse_read(struct tegra_fuse *fuse, unsigned int offset) in tegra20_fuse_read() argument
50 err = pm_runtime_resume_and_get(fuse->dev); in tegra20_fuse_read()
54 mutex_lock(&fuse->apbdma.lock); in tegra20_fuse_read()
56 fuse->apbdma.config.src_addr = fuse->phys + FUSE_BEGIN + offset; in tegra20_fuse_read()
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H A Dfuse.h21 u32 (*read)(struct tegra_fuse *fuse, unsigned int offset);
27 void (*init)(struct tegra_fuse *fuse);
29 int (*probe)(struct tegra_fuse *fuse);
52 u32 (*read_early)(struct tegra_fuse *fuse, unsigned int offset);
53 u32 (*read)(struct tegra_fuse *fuse, unsigned int offset);
H A DMakefile2 obj-y += fuse-tegra.o
3 obj-y += fuse-tegra30.o
5 obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += fuse-tegra20.o
/linux/drivers/pmdomain/qcom/
H A Dcpr.c146 /* fuse quot */
150 /* fuse quot_offset */
367 struct fuse_corner *fuse = corner->fuse_corner; in cpr_corner_restore() local
371 ro_sel = fuse->ring_osc_idx; in cpr_corner_restore()
373 gcnt |= fuse->quot - corner->quot_adjust; in cpr_corner_restore()
377 step_quot |= fuse->step_quot & RBCPR_STEP_QUOT_STEPQUOT_MASK; in cpr_corner_restore()
802 struct fuse_corner *fuse = drv->fuse_corners; in cpr_populate_ring_osc_idx() local
803 struct fuse_corner *end = fuse + drv->desc->num_fuse_corners; in cpr_populate_ring_osc_idx()
808 for (; fuse < end; fuse++, fuses++) { in cpr_populate_ring_osc_idx()
812 fuse->ring_osc_idx = data; in cpr_populate_ring_osc_idx()
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/linux/fs/fuse/
H A DKconfig3 tristate "FUSE (Filesystem in Userspace) support"
6 With FUSE it is possible to implement a fully functional filesystem
10 from the FUSE homepage:
13 installed if you've installed the "fuse" package itself.
15 See <file:Documentation/filesystems/fuse.rst> for more information.
19 a filesystem based on FUSE, answer Y or M.
25 This FUSE extension allows character devices to be
57 bool "FUSE passthrough operations support"
62 This allows bypassing FUSE server by mapping specific FUSE operation
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H A Dacl.c2 * FUSE: Filesystem in Userspace
84 * FUSE daemons before FUSE_POSIX_ACL was introduced could get and set in fuse_get_inode_acl()
119 * Fuse userspace is responsible for updating access in fuse_set_acl()
142 * Fuse daemons without FUSE_POSIX_ACL never changed the passed in fuse_set_acl()
159 * Fuse daemons without FUSE_POSIX_ACL never cached POSIX ACLs in fuse_set_acl()
/linux/Documentation/filesystems/
H A Dfuse.rst4 FUSE title
37 What is FUSE?
40 FUSE is a userspace filesystem framework. It consists of a kernel
41 module (fuse.ko), a userspace library (libfuse.*) and a mount utility
44 One of the most important features of FUSE is allowing secure,
50 `FUSE homepage: <https://github.com/libfuse/>`_
57 fuse
58 This is the usual way to mount a FUSE filesystem. The first
72 obtained by opening the FUSE device ('/dev/fuse').
84 By default FUSE doesn't check file access permissions, the
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H A Dvirtiofs.rst46 ro, rw, context, etc. It also supports FUSE mount options.
58 Since the virtio-fs device uses the FUSE protocol for file system requests, the
59 virtiofs file system for Linux is integrated closely with the FUSE file system
60 client. The guest acts as the FUSE client while the host acts as the FUSE
61 server. The /dev/fuse interface between the kernel and userspace is replaced
64 FUSE requests are placed into a virtqueue and processed by the host. The
68 Mapping /dev/fuse to virtqueues requires solving differences in semantics
69 between /dev/fuse and virtqueues. Each time the /dev/fuse device is read, the
70 FUSE client may choose which request to transfer, making it possible to
H A Dfuse-io.rst4 Fuse I/O Modes
7 Fuse supports the following I/O modes:
40 assumes that all changes to the filesystem go through the FUSE kernel module
/linux/drivers/gpu/drm/nouveau/nvkm/subdev/fuse/
H A Dbase.c27 nvkm_fuse_read(struct nvkm_fuse *fuse, u32 addr) in nvkm_fuse_read() argument
29 return fuse->func->read(fuse, addr); in nvkm_fuse_read()
47 struct nvkm_fuse *fuse; in nvkm_fuse_new_() local
48 if (!(fuse = *pfuse = kzalloc(sizeof(*fuse), GFP_KERNEL))) in nvkm_fuse_new_()
50 nvkm_subdev_ctor(&nvkm_fuse, device, type, inst, &fuse->subdev); in nvkm_fuse_new_()
51 fuse->func = func; in nvkm_fuse_new_()
52 spin_lock_init(&fuse->lock); in nvkm_fuse_new_()
H A DKbuild2 nvkm-y += nvkm/subdev/fuse/base.o
3 nvkm-y += nvkm/subdev/fuse/nv50.o
4 nvkm-y += nvkm/subdev/fuse/gf100.o
5 nvkm-y += nvkm/subdev/fuse/gm107.o
H A Dnv50.c27 nv50_fuse_read(struct nvkm_fuse *fuse, u32 addr) in nv50_fuse_read() argument
29 struct nvkm_device *device = fuse->subdev.device; in nv50_fuse_read()
34 spin_lock_irqsave(&fuse->lock, flags); in nv50_fuse_read()
38 spin_unlock_irqrestore(&fuse->lock, flags); in nv50_fuse_read()
H A Dgf100.c27 gf100_fuse_read(struct nvkm_fuse *fuse, u32 addr) in gf100_fuse_read() argument
29 struct nvkm_device *device = fuse->subdev.device; in gf100_fuse_read()
34 spin_lock_irqsave(&fuse->lock, flags); in gf100_fuse_read()
40 spin_unlock_irqrestore(&fuse->lock, flags); in gf100_fuse_read()
/linux/Documentation/devicetree/bindings/fuse/
H A Dnvidia,tegra20-fuse.yaml4 $id: http://devicetree.org/schemas/fuse/nvidia,tegra20-fuse.yaml#
7 title: NVIDIA Tegra FUSE block
38 - const: fuse
45 - const: fuse
81 fuse@7000f800 {
85 clock-names = "fuse";
87 reset-names = "fuse";
/linux/Documentation/devicetree/bindings/opp/
H A Dopp-v2-qcom-level.yaml27 qcom,opp-fuse-level:
29 A positive value representing the fuse corner/level associated with
30 this OPP node. Sometimes several corners/levels shares a certain fuse
31 corner/level. A fuse corner/level contains e.g. ref uV, min uV,
39 - qcom,opp-fuse-level
53 qcom,opp-fuse-level = <1>;
57 qcom,opp-fuse-level = <2>;
61 qcom,opp-fuse-level = <3>;
/linux/drivers/media/platform/amphion/
H A Dvpu_imx8q.c228 u32 fuse = vpu_imx8q_get_fuse(); in vpu_imx8q_check_codec() local
231 if (fuse & VPU_ENCODER_MASK) in vpu_imx8q_check_codec()
234 fuse >>= VPU_IMX_DECODER_FUSE_OFFSET; in vpu_imx8q_check_codec()
235 fuse &= VPU_DECODER_MASK; in vpu_imx8q_check_codec()
237 if (fuse == VPU_DECODER_MASK) in vpu_imx8q_check_codec()
245 u32 fuse = vpu_imx8q_get_fuse(); in vpu_imx8q_check_fmt() local
248 fuse >>= VPU_IMX_DECODER_FUSE_OFFSET; in vpu_imx8q_check_fmt()
249 fuse &= VPU_DECODER_MASK; in vpu_imx8q_check_fmt()
251 if (fuse == VPU_DECODER_HEVC_MASK && pixelfmt == V4L2_PIX_FMT_HEVC) in vpu_imx8q_check_fmt()
253 if (fuse == VPU_DECODER_H264_MASK && pixelfmt == V4L2_PIX_FMT_H264) in vpu_imx8q_check_fmt()
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/linux/drivers/gpu/drm/nouveau/nvkm/subdev/volt/
H A Dgf117.c26 #include <subdev/fuse.h>
32 struct nvkm_fuse *fuse = device->fuse; in gf117_volt_speedo_read() local
34 if (!fuse) in gf117_volt_speedo_read()
37 return nvkm_fuse_read(fuse, 0x3a8); in gf117_volt_speedo_read()
H A Dgf100.c26 #include <subdev/fuse.h>
32 struct nvkm_fuse *fuse = device->fuse; in gf100_volt_speedo_read() local
34 if (!fuse) in gf100_volt_speedo_read()
37 return nvkm_fuse_read(fuse, 0x1cc); in gf100_volt_speedo_read()
H A Dgk104.c30 #include <subdev/fuse.h>
72 struct nvkm_fuse *fuse = device->fuse; in gk104_volt_speedo_read() local
75 if (!fuse) in gk104_volt_speedo_read()
79 ret = nvkm_fuse_read(fuse, 0x3a8); in gk104_volt_speedo_read()
/linux/tools/testing/selftests/memfd/
H A DMakefile9 VAR_CFLAGS := $(shell pkg-config fuse --cflags 2>/dev/null)
11 VAR_CFLAGS := -D_FILE_OFFSET_BITS=64 -I/usr/include/fuse
14 VAR_LDLIBS := $(shell pkg-config fuse --libs 2>/dev/null)
H A Dfuse_test.c5 * fuse_mnt.c program to provide a fake direct-IO FUSE mount-point for us. This
176 /* wait 200ms for FUSE-request to be active */ in sealing_thread_fn()
190 /* wait 1s more so the FUSE-request is done */ in sealing_thread_fn()
260 /* open FUSE memfd file for GUP testing */ in main()
282 /* Use read() on the FUSE file to read into our memory-mapped memfd in main()
285 * If @fd is on the memfd-fake-FUSE-FS, the read() is delayed by 1s. in main()
327 printf("fuse: DONE\n"); in main()
/linux/Documentation/devicetree/bindings/power/avs/
H A Dqcom,cpr.yaml71 - description: Fuse revision
112 qcom,opp-fuse-level = <1>;
116 qcom,opp-fuse-level = <2>;
120 qcom,opp-fuse-level = <3>;
/linux/Documentation/ABI/testing/
H A Dsysfs-class-bdi15 and FUSE.
70 mount that is prone to get stuck, or a FUSE mount which cannot
83 in case of an NFS mount that is prone to get stuck, or a FUSE mount
111 mount that is prone to get stuck, a FUSE mount which cannot be
/linux/drivers/nvmem/
H A Dimx-ocotp.c69 #define TIMING_STROBE_PROG_US 10 /* Min time to blow a fuse */
131 * - A program is performed to a fuse word which has been locked in imx_ocotp_wait_for_busy()
132 * - A read is performed to from a fuse word which has been read in imx_ocotp_wait_for_busy()
249 * Note: there are minimum timings required to ensure an OTP fuse burns in imx_ocotp_set_imx6_timing()
256 * to physically burn out a fuse. in imx_ocotp_set_imx6_timing()
258 * - Minimum STROBE_READ i.e. the time to wait post OTP fuse burn before in imx_ocotp_set_imx6_timing()
386 * automatically read fuse value in OTP and use read value to mask in imx_ocotp_write()
400 * with the fuse blowing operation only taking place after data0 in imx_ocotp_write()
640 MODULE_DESCRIPTION("i.MX6/i.MX7 OCOTP fuse box driver");
/linux/drivers/gpu/drm/nouveau/nvkm/engine/device/
H A Dbase.c785 .fuse = { 0x00000001, nv50_fuse_new },
888 .fuse = { 0x00000001, nv50_fuse_new },
919 .fuse = { 0x00000001, nv50_fuse_new },
950 .fuse = { 0x00000001, nv50_fuse_new },
981 .fuse = { 0x00000001, nv50_fuse_new },
1012 .fuse = { 0x00000001, nv50_fuse_new },
1043 .fuse = { 0x00000001, nv50_fuse_new },
1074 .fuse = { 0x00000001, nv50_fuse_new },
1105 .fuse = { 0x00000001, nv50_fuse_new },
1138 .fuse = { 0x00000001, nv50_fuse_new },
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