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/linux/drivers/misc/
H A Dsram-exec.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * SRAM protect-exec region helper functions
5 * Copyright (C) 2017 Texas Instruments Incorporated - https://www.ti.com/
25 unsigned long base = (unsigned long)part->base; in sram_check_protect_exec()
26 unsigned long end = base + block->size; in sram_check_protect_exec()
29 dev_err(sram->dev, in sram_check_protect_exec()
30 "SRAM pool marked with 'protect-exec' is not page aligned and will not be created.\n"); in sram_check_protect_exec()
31 return -ENOMEM; in sram_check_protect_exec()
40 list_add_tail(&part->list, &exec_pool_list); in sram_add_protect_exec()
47 * sram_exec_copy - copy data to a protected executable region of sram
[all …]
/linux/drivers/gpu/drm/xe/
H A Dxe_hw_engine_group_types.h1 /* SPDX-License-Identifier: MIT */
14 * enum xe_hw_engine_group_execution_mode - possible execution modes of a hw
17 * @EXEC_MODE_LR: execution in long-running mode
26 * struct xe_hw_engine_group - Hardware engine group
33 * @exec_queue_list: list of exec queues attached to this
37 /** @resume_work: worker to resume faulting LR exec queues */
39 /** @resume_wq: workqueue to resume faulting LR exec queues */
42 * @mode_sem: used to protect this group's hardware resources and ensure
H A Dxe_userptr.c1 // SPDX-License-Identifier: MIT
16 lockdep_assert(lockdep_is_held_type(&vm->svm.gpusvm.notifier_lock, 0) || in xe_userptr_assert_in_notifier()
17 (lockdep_is_held(&vm->lock) && in xe_userptr_assert_in_notifier()
18 lockdep_is_held_type(&vm->svm.gpusvm.notifier_lock, 1) && in xe_userptr_assert_in_notifier()
23 * xe_vma_userptr_check_repin() - Advisory check for repin needed
28 * without the vm->svm.gpusvm.notifier_lock held. There is no guarantee that the
32 * Return: 0 if userptr vma is valid, -EAGAIN otherwise; repin recommended.
36 return mmu_interval_check_retry(&uvma->userptr.notifier, in xe_vma_userptr_check_repin()
37 uvma->userptr.pages.notifier_seq) ? in xe_vma_userptr_check_repin()
38 -EAGAIN : 0; in xe_vma_userptr_check_repin()
[all …]
H A Dxe_tlb_inval_job.c1 // SPDX-License-Identifier: MIT
19 /** struct xe_tlb_inval_job - TLB invalidation job */
25 /** @q: exec queue issuing the invalidate */
34 * @fence: dma fence to indicate completion. 1 way relationship - job
53 container_of(job->fence, typeof(*ifence), base); in xe_tlb_inval_job_run()
56 if (xe_page_reclaim_list_valid(&job->prl)) { in xe_tlb_inval_job_run()
57 prl_sa = xe_page_reclaim_create_prl_bo(job->tlb_inval, &job->prl, ifence); in xe_tlb_inval_job_run()
62 xe_tlb_inval_range(job->tlb_inval, ifence, job->start, in xe_tlb_inval_job_run()
63 job->end, job->vm->usm.asid, prl_sa); in xe_tlb_inval_job_run()
65 return job->fence; in xe_tlb_inval_job_run()
[all …]
/linux/tools/testing/selftests/exec/
H A Dcheck-exec-tests.sh2 # SPDX-License-Identifier: GPL-2.0
7 # samples/check-exec/inc.c
11 set -u -e -o pipefail
14 exec 2>/dev/null
16 DIR="$(dirname $(readlink -f "$0"))"
29 if [[ ${ret} -ne ${expect} ]]; then
33 if [[ ${ret} -eq 0 && "${out}" != "${EXPECTED_OUTPUT}" ]]; then
49 if [[ ${ret} -ne ${expect} ]]; then
53 if [[ ${ret} -eq 0 && "${out}" != "${EXPECTED_OUTPUT}" ]]; then
67 out="$("$@" ./inc -i < "${script}")" || ret=$?
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/linux/Documentation/gpu/
H A Ddrm-vm-bind-locking.rst1 .. SPDX-License-Identifier: (GPL-2.0+ OR MIT)
30 meta-data. Typically one per client (DRM file-private), or one per
33 associated meta-data. The backing storage of a gpu_vma can either be
34 a GEM object or anonymous or page-cache pages mapped also into the CPU
40 is anonymous or page-cache pages as described above.
43 page-table entries point to that backing store.
47 the :doc:`dma-buf doc </driver-api/dma-buf>`.
53 allows deadlock-safe locking of multiple dma_resvs in arbitrary
55 :doc:`dma-buf doc </driver-api/dma-buf>`.
56 * ``exec function``: An exec function is a function that revalidates all
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/linux/Documentation/userspace-api/
H A Dcheck_exec.rst1 .. SPDX-License-Identifier: GPL-2.0
12 `samples/check-exec/inc.c`_ example.
41 Programs should always perform this check to apply kernel-level checks against
60 To avoid race conditions leading to time-of-check to time-of-use issues,
76 securebits but without relying on any other user-controlled configuration.
103 of any exec securebits:
122 users. That can protect against unintended script executions (e.g. ``sh
123 /tmp/*.sh``). This makes sense for (semi-restricted) user sessions.
131 dm-verity/IPE) but where access rights might not be ready yet. Indeed,
143 .. _samples/check-exec/inc.c:
[all …]
/linux/Documentation/devicetree/bindings/arm/omap/
H A Dmpu.txt1 * TI - MPU (Main Processor Unit) subsystem
8 - compatible : Should be "ti,omap3-mpu" for OMAP3
9 Should be "ti,omap4-mpu" for OMAP4
10 Should be "ti,omap5-mpu" for OMAP5
11 - ti,hwmods: "mpu"
14 - sram: Phandle to the ocmcram node
17 - pm-sram: Phandles to ocmcram nodes to be used for power management.
18 First should be type 'protect-exec' for the driver to use to copy
25 - For an OMAP5 SMP system:
28 compatible = "ti,omap5-mpu";
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/linux/Documentation/devicetree/bindings/memory-controllers/ti/
H A Demif.txt3 EMIF - External Memory Interface - is an SDRAM controller used in
11 - compatible : Should be of the form "ti,emif-<ip-rev>" where <ip-rev>
14 "ti,emif-am3352"
15 "ti,emif-am4372"
16 "ti,emif-dra7xx"
17 "ti,emif-keystone"
19 - phy-type : <u32> indicating the DDR phy type. Following are the
24 - device-handle : phandle to a "lpddr2" node representing the memory part
26 - ti,hwmods : For TI hwmods processing and omap device creation
29 - interrupts : interrupt used by the controller
[all …]
/linux/kernel/futex/
H A Dpi.c1 // SPDX-License-Identifier: GPL-2.0-or-later
17 if (likely(current->futex.pi_state_cache)) in refill_pi_state_cache()
23 return -ENOMEM; in refill_pi_state_cache()
25 INIT_LIST_HEAD(&pi_state->list); in refill_pi_state_cache()
27 pi_state->owner = NULL; in refill_pi_state_cache()
28 refcount_set(&pi_state->refcount, 1); in refill_pi_state_cache()
29 pi_state->key = FUTEX_KEY_INIT; in refill_pi_state_cache()
31 current->futex.pi_state_cache = pi_state; in refill_pi_state_cache()
38 struct futex_pi_state *pi_state = current->futex.pi_state_cache; in alloc_pi_state()
41 current->futex.pi_state_cache = NULL; in alloc_pi_state()
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/linux/drivers/gpu/drm/amd/amdgpu/
H A Damdgpu_gem.c33 #include <linux/dma-buf.h>
34 #include <linux/dma-fence-unwrap.h>
71 ret = -EINVAL; in amdgpu_gem_add_input_fence()
103 return -ENOENT; in amdgpu_gem_update_timeline_node()
113 return -ENOMEM; in amdgpu_gem_update_timeline_node()
121 struct ttm_buffer_object *bo = vmf->vma->vm_private_data; in amdgpu_gem_fault()
122 struct drm_device *ddev = bo->base.dev; in amdgpu_gem_fault()
137 ret = ttm_bo_vm_fault_reserved(vmf, vmf->vma->vm_page_prot, in amdgpu_gem_fault()
142 ret = ttm_bo_vm_dummy_page(vmf, vmf->vma->vm_page_prot); in amdgpu_gem_fault()
144 if (ret == VM_FAULT_RETRY && !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) in amdgpu_gem_fault()
[all …]
H A Damdgpu_amdkfd_gpuvm.c1 // SPDX-License-Identifier: MIT
3 * Copyright 2014-2018 Advanced Micro Devices, Inc.
23 #include <linux/dma-buf.h>
73 #define domain_string(domain) domain_bit_to_string[ffs(domain)-1]
82 list_for_each_entry(entry, &mem->attachments, list) in kfd_mem_is_attached()
83 if (entry->bo_va->base.vm == avm) in kfd_mem_is_attached()
90 * reuse_dmamap() - Check whether adev can share the original
104 return (adev->ram_is_direct_mapped && bo_adev->ram_is_direct_mapped) || in reuse_dmamap()
105 (adev->dev->iommu_group == bo_adev->dev->iommu_group); in reuse_dmamap()
109 * System (TTM + userptr) memory - 15/16th System RAM
[all …]
/linux/include/linux/
H A Drseq.h1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
14 return IS_ENABLED(CONFIG_GENERIC_IRQ_ENTRY) && likely(t->rseq.event.has_rseq > 1); in rseq_v2()
21 if (current->rseq.event.slowpath) in rseq_handle_slowpath()
24 if (current->rseq.event.sched_switch && current->rseq.event.has_rseq) in rseq_handle_slowpath()
39 if (current->rseq.event.user_irq) in rseq_signal_deliver()
40 __rseq_signal_deliver(ksig->sig, regs); in rseq_signal_deliver()
42 if (current->rseq.event.has_rseq) in rseq_signal_deliver()
43 __rseq_signal_deliver(ksig->sig, regs); in rseq_signal_deliver()
55 struct rseq_event *ev = &t->rseq.event; in rseq_sched_switch_event()
69 * was via interrupt from user space. ev->has_rseq does not have in rseq_sched_switch_event()
[all …]
/linux/fs/
H A Dexec.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/fs/exec.c
9 * #!-checking implemented by tytso.
12 * Demand-loading implemented 01.12.91 - no need to read anything but
14 * "current->executable", and page faults do the actual loading. Clean.
17 * was less than 2 hours work to get demand-loading completely implemented.
20 * current->executable is only used by the procfs. This allows a dispatch
83 /* For vma exec functions. */
96 insert ? list_add(&fmt->lh, &formats) : in __register_binfmt()
97 list_add_tail(&fmt->lh, &formats); in __register_binfmt()
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/linux/tools/testing/selftests/drivers/net/
H A Dstats.py2 # SPDX-License-Identifier: GPL-2.0
24 def check_pause(cfg) -> None:
31 ethnl.pause_get({"header": {"dev-index": cfg.ifindex}})
37 data = ethnl.pause_get({"header": {"dev-index": cfg.ifindex,
42 def check_fec(cfg) -> None:
49 ethnl.fec_get({"header": {"dev-index": cfg.ifindex}})
55 data = ethnl.fec_get({"header": {"dev-index": cfg.ifindex,
60 def check_fec_hist(cfg) -> Non
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/linux/Documentation/filesystems/
H A Daffs.rst1 .. SPDX-License-Identifier: GPL-2.0
19 in file names are case-insensitive, as they ought to be.
44 protect
107 Amiga -> Linux:
111 - R maps to r for user, group and others. On directories, R implies x.
113 - W maps to w.
115 - E maps to x.
117 - D is ignored.
119 - H, S and P are always retained and ignored under Linux.
121 - A is cleared when a file is written to.
[all …]
/linux/io_uring/
H A Dcancel.c1 // SPDX-License-Identifier: GPL-2.0
41 bool match_user_data = cd->flags & IORING_ASYNC_CANCEL_USERDATA; in io_cancel_req_match()
43 if (req->ctx != cd->ctx) in io_cancel_req_match()
46 if (!(cd->flags & (IORING_ASYNC_CANCEL_FD | IORING_ASYNC_CANCEL_OP))) in io_cancel_req_match()
49 if (cd->flags & IORING_ASYNC_CANCEL_ANY) in io_cancel_req_match()
51 if (cd->flags & IORING_ASYNC_CANCEL_FD) { in io_cancel_req_match()
52 if (req->file != cd->file) in io_cancel_req_match()
55 if (cd->flags & IORING_ASYNC_CANCEL_OP) { in io_cancel_req_match()
56 if (req->opcode != cd->opcode) in io_cancel_req_match()
59 if (match_user_data && req->cqe.user_data != cd->data) in io_cancel_req_match()
[all …]
/linux/drivers/gpu/drm/panthor/
H A Dpanthor_mmu.c1 // SPDX-License-Identifier: GPL-2.0 or MIT
19 #include <linux/dma-mapping.h>
23 #include <linux/io-pgtable.h>
47 * struct panthor_as_slot - Address space slot
55 * struct panthor_mmu - MMU related data
68 * us to re-assign them to re-assign slots on-demand.
114 * struct panthor_vm_pool - VM pool object
133 * struct panthor_vma - GPU mapping object
156 * struct panthor_vm_op_ctx - VM operation context
158 * With VM operations potentially taking place in a dma-signaling path, we
[all …]
/linux/include/linux/sched/
H A Dsignal.h1 /* SPDX-License-Identifier: GPL-2.0 */
13 #include <linux/posix-timers.h>
18 * Types defining task->signal and task->sighand and APIs using them:
29 * Per-process accounting stats:
61 * struct thread_group_cputimer - thread group interval timer counts
103 /* current thread group signal load-balancing target: */
126 * manager, to re-parent orphan (double-forking) child processes
213 * getrlimit/setrlimit use task_lock(current->group_leader) to
214 * protect this instead of the siglock, because they really
220 struct pacct_struct pacct; /* per-process accounting information */
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/linux/drivers/net/ethernet/mellanox/mlx5/core/lib/
H A Dcrypto.c1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
7 #define MLX5_CRYPTO_DEK_POOLS_NUM (MLX5_ACCEL_OBJ_TYPE_KEY_NUM - 1)
8 #define type2idx(type) ((type) - 1)
17 _a->num_deks - _a->avail_deks - _a->in_use_deks; })
24 _bulk->avail_deks == _bulk->num_deks; })
36 struct mutex lock; /* protect the following lists, and the bulks */
41 /* No in-used keys, and all need to be synced.
50 spinlock_t destroy_lock; /* protect destroy_list */
87 return dek->obj_id; in mlx5_crypto_dek_get_id()
105 return -EINVAL; in mlx5_crypto_dek_get_key_sz()
[all …]
/linux/fs/nfs/
H A Dinternal.h1 /* SPDX-License-Identifier: GPL-2.0 */
25 if (!nfs_fsid_equal(&NFS_SB(parent)->fsid, &fattr->fsid)) in nfs_attr_check_mountpoint()
26 fattr->valid |= NFS_ATTR_FATTR_MOUNTPOINT; in nfs_attr_check_mountpoint()
31 if (((fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) == 0) || in nfs_attr_use_mounted_on_fileid()
32 (((fattr->valid & NFS_ATTR_FATTR_MOUNTPOINT) == 0) && in nfs_attr_use_mounted_on_fileid()
33 ((fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL) == 0))) in nfs_attr_use_mounted_on_fileid()
40 if (!(NFS_SB(dentry->d_sb)->flags & NFS_MOUNT_SOFTREVAL)) in nfs_lookup_is_soft_revalidate()
42 if (!d_is_positive(dentry) || !NFS_FH(d_inode(dentry))->size) in nfs_lookup_is_soft_revalidate()
66 #define NFS_UNSPEC_PORT (-1)
92 * In-kernel mount arguments
[all …]
/linux/include/linux/mtd/
H A Drawnand.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright © 2000-2010 David Woodhouse <dwmw2@infradead.org>
75 #define NAND_CMD_NONE -1
84 #define NAND_DATA_IFACE_CHECK_ONLY -1
98 * ecc.correct() returns -EBADMSG.
124 * Chip requires ready check on read (for auto-incremented sequential read).
142 #define NAND_HAS_SUBPAGE_READ(chip) ((chip->options & NAND_SUBPAGE_READ))
168 * This option could be defined by controller drivers to protect against
174 * In case your controller is implementing ->legacy.cmd_ctrl() and is relying
175 * on the default ->cmdfunc() implementation, you may want to let the core
[all …]
/linux/arch/arm/boot/dts/ti/omap/
H A Dam33xx.dtsi1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
8 #include <dt-bindings/bus/ti-sysc.h>
9 #include <dt-bindings/gpio/gpio.h>
10 #include <dt-bindings/pinctrl/am33xx.h>
11 #include <dt-bindings/clock/am3.h>
15 interrupt-parent = <&intc>;
16 #address-cells = <1>;
17 #size-cells = <1>;
30 d-can0 = &dcan0;
[all …]
/linux/mm/
H A Drmap.c1 // SPDX-License-Identifier: GPL-2.0
3 * mm/rmap.c - physical to virtual reverse mappings
23 * inode->i_rwsem (while writing or truncating, not reading or faulting)
24 * mm->mmap_lock
25 * mapping->invalidate_lock (in filemap_fault)
29 * mapping->i_mmap_rwsem
30 * anon_vma->rwsem
31 * mm->page_table_loc
[all...]
/linux/arch/arm64/kernel/
H A Dfpsimd.c1 // SPDX-License-Identifier: GPL-2.0-only
70 * we add the per-cpu variable 'fpsimd_last_state' (below), which contains the
86 * loaded on the CPU, allowing the state to be saved if a FPSIMD-aware
94 * is necessary to protect any manipulation of a task's fpsimd_state or
99 * - the task gets scheduled in; if both the task's fpsimd_cpu field
100 * contains the id of the current CPU, and the CPU's fpsimd_last_state per-cpu
104 * - the task returns to userland; if TIF_FOREIGN_FPSTATE is set, the task's
110 * - the task executes an ordinary syscall; upon return to userland, the
114 * - the task executes a syscall which executes some NEON instructions; this is
116 * register contents to memory, clears the fpsimd_last_state per-cpu variable
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