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/linux/drivers/gpu/drm/nouveau/nvkm/subdev/fault/
H A Dbase.c29 struct nvkm_fault *fault = container_of(event, typeof(*fault), event); in nvkm_fault_ntfy_fini() local
30 fault->func->buffer.intr(fault->buffer[index], false); in nvkm_fault_ntfy_fini()
36 struct nvkm_fault *fault = container_of(event, typeof(*fault), event); in nvkm_fault_ntfy_init() local
37 fault->func->buffer.intr(fault->buffer[index], true); in nvkm_fault_ntfy_init()
49 struct nvkm_fault *fault = nvkm_fault(subdev); in nvkm_fault_intr() local
50 return fault->func->intr(fault); in nvkm_fault_intr()
56 struct nvkm_fault *fault = nvkm_fault(subdev); in nvkm_fault_fini() local
57 if (fault->func->fini) in nvkm_fault_fini()
58 fault->func->fini(fault); in nvkm_fault_fini()
65 struct nvkm_fault *fault = nvkm_fault(subdev); in nvkm_fault_init() local
[all …]
H A Dgv100.c33 struct nvkm_fault *fault = container_of(work, typeof(*fault), nrpfb_work); in gv100_fault_buffer_process() local
34 struct nvkm_fault_buffer *buffer = fault->buffer[0]; in gv100_fault_buffer_process()
35 struct nvkm_device *device = fault->subdev.device; in gv100_fault_buffer_process()
44 const u32 base = get * buffer->fault->func->buffer.entry_size; in gv100_fault_buffer_process()
78 struct nvkm_device *device = buffer->fault->subdev.device; in gv100_fault_buffer_intr()
89 struct nvkm_device *device = buffer->fault->subdev.device; in gv100_fault_buffer_fini()
97 struct nvkm_device *device = buffer->fault->subdev.device; in gv100_fault_buffer_init()
109 struct nvkm_device *device = buffer->fault->subdev.device; in gv100_fault_buffer_info()
122 struct nvkm_fault *fault = container_of(ntfy, typeof(*fault), nrpfb); in gv100_fault_ntfy_nrpfb() local
124 schedule_work(&fault->nrpfb_work); in gv100_fault_ntfy_nrpfb()
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H A Dtu102.c38 nvkm_event_ntfy(&buffer->fault->event, buffer->id, NVKM_FAULT_BUFFER_EVENT_PENDING); in tu102_fault_buffer_notify()
54 struct nvkm_device *device = buffer->fault->subdev.device; in tu102_fault_buffer_fini()
63 struct nvkm_device *device = buffer->fault->subdev.device; in tu102_fault_buffer_init()
75 struct nvkm_device *device = buffer->fault->subdev.device; in tu102_fault_buffer_info()
88 struct nvkm_fault *fault = container_of(inth, typeof(*fault), info_fault); in tu102_fault_info_fault() local
89 struct nvkm_subdev *subdev = &fault->subdev; in tu102_fault_info_fault()
116 tu102_fault_fini(struct nvkm_fault *fault) in tu102_fault_fini() argument
118 nvkm_event_ntfy_block(&fault->nrpfb); in tu102_fault_fini()
119 flush_work(&fault->nrpfb_work); in tu102_fault_fini()
121 if (fault->buffer[0]) in tu102_fault_fini()
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/linux/drivers/infiniband/hw/hfi1/
H A Dfault.c13 #include "fault.h"
69 if (!ibd->fault->n_rxfaults[i] && !ibd->fault->n_txfaults[i]) in _fault_stats_seq_show()
74 (unsigned long long)ibd->fault->n_rxfaults[i], in _fault_stats_seq_show()
75 (unsigned long long)ibd->fault->n_txfaults[i]); in _fault_stats_seq_show()
96 struct fault *fault = file->private_data; in fault_opcodes_write() local
135 bitmap_zero(fault->opcodes, sizeof(fault->opcodes) * in fault_opcodes_write()
145 clear_bit(i, fault->opcodes); in fault_opcodes_write()
147 set_bit(i, fault->opcodes); in fault_opcodes_write()
166 struct fault *fault = file->private_data; in fault_opcodes_read() local
167 size_t bitsize = sizeof(fault->opcodes) * BITS_PER_BYTE; in fault_opcodes_read()
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/linux/drivers/iommu/iommufd/
H A Deventq.c22 struct iommufd_fault *fault = hwpt->fault; in iommufd_auto_response_faults() local
27 if (!fault || !handle) in iommufd_auto_response_faults()
31 mutex_lock(&fault->mutex); in iommufd_auto_response_faults()
32 spin_lock(&fault->common.lock); in iommufd_auto_response_faults()
33 list_for_each_entry_safe(group, next, &fault->common.deliver, node) { in iommufd_auto_response_faults()
38 spin_unlock(&fault->common.lock); in iommufd_auto_response_faults()
46 xa_for_each(&fault->response, index, group) { in iommufd_auto_response_faults()
49 xa_erase(&fault->response, index); in iommufd_auto_response_faults()
53 mutex_unlock(&fault->mutex); in iommufd_auto_response_faults()
60 struct iommufd_fault *fault = eventq_to_fault(eventq); in iommufd_fault_destroy() local
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/linux/drivers/gpu/drm/ci/xfails/
H A Dmsm-sm8350-hdk-skips.txt24 # [ 200.895243] *** gpu fault: ttbr0=00000001160d6000 iova=0001000000001000 dir=WRITE type=PERMISS…
25 # [ 200.906885] *** gpu fault: ttbr0=00000001160d6000 iova=0001000000001000 dir=WRITE type=UNKNOWN…
26 # [ 200.917625] *** gpu fault: ttbr0=00000001160d6000 iova=0001000000001000 dir=WRITE type=UNKNOWN…
27 # [ 200.928353] *** gpu fault: ttbr0=00000001160d6000 iova=0001000000001000 dir=WRITE type=UNKNOWN…
28 # [ 200.939084] *** gpu fault: ttbr0=00000001160d6000 iova=0001000000001000 dir=WRITE type=UNKNOWN…
29 # [ 200.949815] *** gpu fault: ttbr0=00000001160d6000 iova=0001000000001000 dir=WRITE type=UNKNOWN…
31 # [ 200.960467] *** gpu fault: ttbr0=00000001160d6000 iova=0001000000001000 dir=WRITE type=UNKNOWN…
32 # [ 200.960500] *** gpu fault: ttbr0=00000001160d6000 iova=0001000000001000 dir=WRITE type=UNKNOWN…
33 # [ 200.995966] *** gpu fault: ttbr0=00000001160d6000 iova=0001000000001000 dir=WRITE type=UNKNOWN…
34 # [ 201.006702] *** gpu fault: ttbr0=00000001160d6000 iova=0001000000001000 dir=WRITE type=UNKNOWN…
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/linux/arch/powerpc/mm/
H A Dfault.c6 * Derived from "arch/i386/mm/fault.c"
110 * 5. T1 : enters fault handler, takes mmap_lock, etc... in bad_access_pkey()
141 vm_fault_t fault) in do_sigbus() argument
148 if (fault & (VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE)) { in do_sigbus()
151 pr_err("MCE: Killing %s:%d due to hardware memory corruption fault at %lx\n", in do_sigbus()
154 if (fault & VM_FAULT_HWPOISON_LARGE) in do_sigbus()
155 lsb = hstate_index_to_shift(VM_FAULT_GET_HINDEX(fault)); in do_sigbus()
156 if (fault & VM_FAULT_HWPOISON) in do_sigbus()
169 vm_fault_t fault) in mm_fault_error() argument
172 * Kernel page fault interrupted by SIGKILL. We have no reason to in mm_fault_error()
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/linux/arch/arm64/mm/
H A Dfault.c3 * Based on arch/arm/mm/fault.c
285 * If we now have a valid translation, treat the translation fault as in is_spurious_el1_translation_fault()
292 * If we got a different type of fault from the AT instruction, in is_spurious_el1_translation_fault()
293 * treat the translation fault as spurious. in is_spurious_el1_translation_fault()
343 * tag fault. in do_tag_recovery()
369 * Are we prepared to handle this kernel fault? in __do_kernel_fault()
376 "Ignoring spurious kernel translation fault at virtual address %016lx\n", addr)) in __do_kernel_fault()
417 * an alignment fault not caused by the memory type would take in set_thread_esr()
418 * precedence over translation fault for a real access to empty in set_thread_esr()
419 * space. Unfortunately we can't easily distinguish "alignment fault in set_thread_esr()
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/linux/arch/powerpc/platforms/powernv/
H A Dvas-fault.c3 * VAS Fault handling.
21 * The maximum FIFO size for fault window can be 8MB
23 * instance will be having fault window.
35 pr_err("Fault fifo size %d, Max crbs %d\n", vinst->fault_fifo_size, in dump_fifo()
39 pr_err("Fault FIFO Dump:\n"); in dump_fifo()
47 * Process valid CRBs in fault FIFO.
50 * request buffers, raises interrupt on the CPU to handle the fault.
51 * It takes credit on fault window, updates nx_fault_stamp in CRB with
52 * the following information and pastes CRB in fault FIFO.
55 * fault_storage_addr - fault address
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/linux/drivers/leds/
H A Dleds-lp8864.c32 "Vin under-voltage fault",
33 "Vin over-voltage fault",
34 "Vdd under-voltage fault",
35 "Vin over-current fault",
36 "Missing charge pump fault",
37 "Charge pump fault",
38 "Missing boost sync fault",
39 "CRC error fault ",
44 "Boost OVP low fault",
45 "Boost OVP high fault",
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/linux/drivers/gpu/drm/nouveau/
H A Dnouveau_svm.c66 u8 fault; member
68 } **fault; member
160 * page fault) and maybe some other commands. in nouveau_svmm_bind()
379 /* Issue fault replay for GPU to retry accesses that faulted previously. */
390 /* Cancel a replayable fault that could not be handled.
392 * Cancelling the fault will trigger recovery to reset the engine
412 struct nouveau_svm_fault *fault) in nouveau_svm_fault_cancel_fault() argument
414 nouveau_svm_fault_cancel(svm, fault->inst, in nouveau_svm_fault_cancel_fault()
415 fault->hub, in nouveau_svm_fault_cancel_fault()
416 fault->gpc, in nouveau_svm_fault_cancel_fault()
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/linux/arch/x86/kvm/mmu/
H A Dpaging_tmpl.h92 struct x86_exception fault; member
249 ret = __try_cmpxchg_user(ptep_user, &orig_pte, pte, fault); in FNAME()
352 * Queue a page fault for injection if this assertion fails, as callers in FNAME()
353 * assume that walker.fault contains sane info on a walk failure. I.e. in FNAME()
380 nested_access, &walker->fault); in FNAME()
384 * instruction) triggers a nested page fault. The exit in FNAME()
386 * "guest page access" as the nested page fault's cause, in FNAME()
448 real_gpa = kvm_translate_gpa(vcpu, mmu, gfn_to_gpa(gfn), access, &walker->fault); in FNAME()
458 * On a write fault, fold the dirty bit into accessed_dirty. in FNAME()
481 walker->fault.vector = PF_VECTOR; in FNAME()
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H A Dmmu_internal.h261 * Maximum page size that can be created for this fault; input to
303 int kvm_tdp_page_fault(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault);
309 * RET_PF_CONTINUE: So far, so good, keep handling the page fault.
310 * RET_PF_RETRY: let CPU fault again on the address.
311 * RET_PF_EMULATE: mmio page fault, emulate the instruction directly.
314 * RET_PF_INVALID: the spte is invalid, let the real page fault path update it.
343 struct kvm_page_fault *fault) in kvm_mmu_prepare_memory_fault_exit() argument
345 kvm_prepare_memory_fault_exit(vcpu, fault->gfn << PAGE_SHIFT, in kvm_mmu_prepare_memory_fault_exit()
346 PAGE_SIZE, fault->write, fault->exec, in kvm_mmu_prepare_memory_fault_exit()
347 fault->is_private); in kvm_mmu_prepare_memory_fault_exit()
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/linux/arch/microblaze/mm/
H A Dfault.c2 * arch/microblaze/mm/fault.c
6 * Derived from "arch/ppc/mm/fault.c"
9 * Derived from "arch/i386/mm/fault.c"
71 /* Are we prepared to handle this fault? */ in bad_page_fault()
83 * The error_code parameter is ESR for a data fault,
84 * 0 for an instruction fault.
93 vm_fault_t fault; in do_page_fault() local
115 pr_emerg("Page fault in user mode with faulthandler_disabled(), mm = %p\n", in do_page_fault()
119 die("Weird page fault", regs, SIGSEGV); in do_page_fault()
130 * erroneous fault occurring in a code path which already holds mmap_lock in do_page_fault()
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/linux/arch/arm/mm/
H A Dfsr-3level.c7 { do_bad, SIGBUS, 0, "reserved translation fault" },
8 { do_translation_fault, SIGSEGV, SEGV_MAPERR, "level 1 translation fault" },
9 { do_translation_fault, SIGSEGV, SEGV_MAPERR, "level 2 translation fault" },
10 { do_page_fault, SIGSEGV, SEGV_MAPERR, "level 3 translation fault" },
11 { do_bad, SIGBUS, 0, "reserved access flag fault" },
12 { do_bad, SIGSEGV, SEGV_ACCERR, "level 1 access flag fault" },
13 { do_page_fault, SIGSEGV, SEGV_ACCERR, "level 2 access flag fault" },
14 { do_page_fault, SIGSEGV, SEGV_ACCERR, "level 3 access flag fault" },
15 { do_bad, SIGBUS, 0, "reserved permission fault" },
16 { do_bad, SIGSEGV, SEGV_ACCERR, "level 1 permission fault" },
[all …]
H A Dfsr-2level.c12 { do_translation_fault, SIGSEGV, SEGV_MAPERR, "section translation fault" },
14 { do_page_fault, SIGSEGV, SEGV_MAPERR, "page translation fault" },
16 { do_bad, SIGSEGV, SEGV_ACCERR, "section domain fault" },
18 { do_bad, SIGSEGV, SEGV_ACCERR, "page domain fault" },
20 { do_sect_fault, SIGSEGV, SEGV_ACCERR, "section permission fault" },
22 { do_page_fault, SIGSEGV, SEGV_ACCERR, "page permission fault" },
50 { do_bad, SIGSEGV, SEGV_ACCERR, "section access flag fault" },
52 { do_translation_fault, SIGSEGV, SEGV_MAPERR, "section translation fault" },
53 { do_bad, SIGSEGV, SEGV_ACCERR, "page access flag fault" },
54 { do_page_fault, SIGSEGV, SEGV_MAPERR, "page translation fault" },
[all …]
H A Dfault.c3 * linux/arch/arm/mm/fault.c
26 #include "fault.h"
156 * Are we prepared to handle this kernel fault? in __do_kernel_fault()
194 pr_err("%s: unhandled page fault (%d) at 0x%08lx, code 0x%03x\n", in __do_user_fault()
220 * have no context to handle this fault with. in do_bad_area()
269 vm_fault_t fault; in do_page_fault() local
283 * context, we must not take the fault.. in do_page_fault()
308 * routed via the translation fault mechanism. Check whether uaccess in do_page_fault()
324 fault = 0; in do_page_fault()
328 fault = handle_mm_fault(vma, addr, flags | FAULT_FLAG_VMA_LOCK, regs); in do_page_fault()
[all …]
/linux/arch/hexagon/mm/
H A Dvm_fault.c3 * Memory fault handling for Hexagon
9 * Page fault handling for the Hexagon Virtual Machine.
35 * Canonical page fault handler
43 vm_fault_t fault; in do_page_fault() local
49 * then must not take the fault. in do_page_fault()
84 fault = handle_mm_fault(vma, address, flags, regs); in do_page_fault()
86 if (fault_signal_pending(fault, regs)) { in do_page_fault()
92 /* The fault is fully completed (including releasing mmap lock) */ in do_page_fault()
93 if (fault & VM_FAULT_COMPLETED) in do_page_fault()
97 if (likely(!(fault & VM_FAULT_ERROR))) { in do_page_fault()
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/linux/arch/parisc/mm/
H A Dfault.c46 * the instruction has generated some sort of a memory access fault).
106 * Data TLB miss fault/data page fault in parisc_acctyp()
204 [6] = "Instruction TLB miss fault",
213 [15] = "Data TLB miss fault",
214 [16] = "Non-access ITLB miss fault",
215 [17] = "Non-access DTLB miss fault",
274 vm_fault_t fault = 0; in do_page_fault() local
281 msg = "Page fault: no context"; in do_page_fault()
313 * If for any reason at all we couldn't handle the fault, make in do_page_fault()
315 * fault. in do_page_fault()
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/linux/arch/alpha/mm/
H A Dfault.c3 * linux/arch/alpha/mm/fault.c
65 * 2 = fault-on-read
66 * 3 = fault-on-execute
67 * 4 = fault-on-write
92 vm_fault_t fault; in do_page_fault() local
110 we must not take the fault. */ in do_page_fault()
142 /* If for any reason at all we couldn't handle the fault, in do_page_fault()
144 the fault. */ in do_page_fault()
145 fault = handle_mm_fault(vma, address, flags, regs); in do_page_fault()
147 if (fault_signal_pending(fault, regs)) { in do_page_fault()
[all …]
/linux/Documentation/fault-injection/
H A Dfault-injection.rst2 Fault injection capabilities infrastructure
8 Available fault injection capabilities
25 injects futex deadlock and uaddr fault errors.
56 When the fault is injected and the reallocation is triggered, cached pointers
61 By creating these controlled fault scenarios, the system can catch instances
70 The effectiveness of this fault detection is enhanced when KASAN is
74 - NVMe fault injection
81 - Null test block driver fault injection
90 Configure fault-injection capabilities behavior
96 fault-inject-debugfs kernel module provides some debugfs entries for runtime
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/linux/arch/nios2/mm/
H A Dfault.c5 * based on arch/mips/mm/fault.c which is:
50 vm_fault_t fault; in do_page_fault() local
59 * We fault-in kernel-space virtual memory on-demand. The in do_page_fault()
79 * context, we must not take the fault.. in do_page_fault()
120 * If for any reason at all we couldn't handle the fault, in do_page_fault()
122 * the fault. in do_page_fault()
124 fault = handle_mm_fault(vma, address, flags, regs); in do_page_fault()
126 if (fault_signal_pending(fault, regs)) { in do_page_fault()
132 /* The fault is fully completed (including releasing mmap lock) */ in do_page_fault()
133 if (fault & VM_FAULT_COMPLETED) in do_page_fault()
[all …]
/linux/arch/sh/mm/
H A Dfault.c2 * Page fault handler for SH with an MMU.
7 * Based on linux/arch/i386/mm/fault.c:
157 * be another reason for the fault. Return NULL here to in vmalloc_sync_one()
158 * signal that we have not taken care of the fault. in vmalloc_sync_one()
174 * Handle a fault on the vmalloc or module mapping area
225 /* Are we prepared to handle this kernel fault? */ in no_context()
314 unsigned long address, vm_fault_t fault) in mm_fault_error() argument
320 if (fault_signal_pending(fault, regs)) { in mm_fault_error()
327 if (!(fault & VM_FAULT_RETRY)) in mm_fault_error()
330 if (!(fault & VM_FAULT_ERROR)) in mm_fault_error()
[all …]
/linux/arch/nios2/kernel/
H A Dmisaligned.c72 unsigned int fault; in handle_unaligned_c() local
85 fault = 0; in handle_unaligned_c()
98 fault |= __get_user(d0, (u8 *)(addr+0)); in handle_unaligned_c()
99 fault |= __get_user(d1, (u8 *)(addr+1)); in handle_unaligned_c()
111 fault |= __put_user(d0, (u8 *)(addr+0)); in handle_unaligned_c()
112 fault |= __put_user(d1, (u8 *)(addr+1)); in handle_unaligned_c()
116 fault |= __get_user(d0, (u8 *)(addr+0)); in handle_unaligned_c()
117 fault |= __get_user(d1, (u8 *)(addr+1)); in handle_unaligned_c()
133 fault |= __put_user(d0, (u8 *)(addr+0)); in handle_unaligned_c()
134 fault |= __put_user(d1, (u8 *)(addr+1)); in handle_unaligned_c()
[all …]
/linux/arch/mips/kernel/
H A Dunaligned.c175 goto fault; in emulate_load_store_insn()
184 goto fault; in emulate_load_store_insn()
193 goto fault; in emulate_load_store_insn()
213 goto fault; in emulate_load_store_insn()
222 goto fault; in emulate_load_store_insn()
243 goto fault; in emulate_load_store_insn()
252 goto fault; in emulate_load_store_insn()
261 goto fault; in emulate_load_store_insn()
272 goto fault; in emulate_load_store_insn()
281 goto fault; in emulate_load_store_insn()
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