| /linux/drivers/gpu/drm/nouveau/nvkm/subdev/fault/ |
| H A D | base.c | 29 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
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| H A D | gv100.c | 33 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 D | tu102.c | 38 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/iommu/iommufd/ |
| H A D | fault.c | 87 if (!hwpt->fault) in iommufd_fault_domain_attach_dev()
104 struct iommufd_fault *fault = hwpt->fault; in iommufd_auto_response_faults() local
109 if (!fault) in iommufd_auto_response_faults()
113 mutex_lock(&fault->mutex); in iommufd_auto_response_faults()
114 spin_lock(&fault->lock); in iommufd_auto_response_faults()
115 list_for_each_entry_safe(group, next, &fault->deliver, node) { in iommufd_auto_response_faults()
120 spin_unlock(&fault->lock); in iommufd_auto_response_faults()
128 xa_for_each(&fault->response, index, group) { in iommufd_auto_response_faults()
131 xa_erase(&fault->response, index); in iommufd_auto_response_faults()
135 mutex_unlock(&fault->mutex); in iommufd_auto_response_faults()
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| /linux/drivers/infiniband/hw/hfi1/ |
| H A D | fault.c | 13 #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
138 bitmap_zero(fault->opcodes, sizeof(fault->opcodes) * in fault_opcodes_write()
148 clear_bit(i, fault->opcodes); in fault_opcodes_write()
150 set_bit(i, fault->opcodes); in fault_opcodes_write()
170 struct fault *fault = file->private_data; in fault_opcodes_read() local
171 size_t bitsize = sizeof(fault->opcodes) * BITS_PER_BYTE; in fault_opcodes_read()
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| /linux/drivers/iommu/ |
| H A D | io-pgfault.c | 17 * Return the fault parameter of a device if it exists. Otherwise, return NULL.
35 /* Caller must hold a reference of the fault parameter. */
47 if (!(iopf->fault.prm.flags & IOMMU_FAULT_PAGE_REQUEST_LAST_PAGE)) in __iopf_free_group()
64 struct iommu_fault *fault) in report_partial_fault() argument
72 iopf->fault = *fault; in report_partial_fault()
98 group->last_fault.fault = evt->fault; in iopf_group_alloc()
106 if (iopf->fault.prm.grpid == evt->fault.prm.grpid) in iopf_group_alloc()
107 /* Insert *before* the last fault */ in iopf_group_alloc()
121 struct iommu_fault *fault = &evt->fault; in find_fault_handler() local
124 if (fault->prm.flags & IOMMU_FAULT_PAGE_REQUEST_PASID_VALID) { in find_fault_handler()
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| /linux/drivers/gpu/drm/nouveau/ |
| H A D | nouveau_svm.c | 66 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/powerpc/platforms/powernv/ |
| H A D | vas-fault.c | 3 * 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/arch/microblaze/mm/ |
| H A D | fault.c | 2 * 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/m68k/mm/ |
| H A D | fault.c | 3 * linux/arch/m68k/mm/fault.c
20 #include "fault.h"
64 * bit 0 == 0 means no page found, 1 means protection fault
75 vm_fault_t fault; in do_page_fault() local
78 pr_debug("do page fault:\nregs->sr=%#x, regs->pc=%#lx, address=%#lx, %ld, %p\n", in do_page_fault()
83 * context, we must not take the fault.. in do_page_fault()
136 * If for any reason at all we couldn't handle the fault, in do_page_fault()
138 * the fault. in do_page_fault()
141 fault = handle_mm_fault(vma, address, flags, regs); in do_page_fault()
142 pr_debug("handle_mm_fault returns %x\n", fault); in do_page_fault()
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| /linux/arch/parisc/mm/ |
| H A D | fault.c | 46 * 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/arm/mm/ |
| H A D | fsr-3level.c | 7 { 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" },
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| H A D | fsr-2level.c | 12 { 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" },
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| H A D | fault.c | 3 * 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()
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| /linux/Documentation/fault-injection/ |
| H A D | fault-injection.rst | 2 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/hexagon/mm/ |
| H A D | vm_fault.c | 3 * 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/alpha/mm/ |
| H A D | fault.c | 3 * 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()
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| /linux/arch/powerpc/lib/ |
| H A D | checksum_32.S | 109 EX_TABLE(8 ## n ## 0b, fault); \
110 EX_TABLE(8 ## n ## 1b, fault); \
111 EX_TABLE(8 ## n ## 2b, fault); \
112 EX_TABLE(8 ## n ## 3b, fault); \
113 EX_TABLE(8 ## n ## 4b, fault); \
114 EX_TABLE(8 ## n ## 5b, fault); \
115 EX_TABLE(8 ## n ## 6b, fault); \
116 EX_TABLE(8 ## n ## 7b, fault);
240 fault: label
244 EX_TABLE(70b, fault);
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| /linux/arch/mips/kernel/ |
| H A D | unaligned.c | 175 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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| /linux/arch/nios2/mm/ |
| H A D | fault.c | 5 * 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()
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| /linux/arch/sh/mm/ |
| H A D | fault.c | 2 * 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()
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| /linux/arch/nios2/kernel/ |
| H A D | misaligned.c | 72 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()
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| /linux/arch/arc/mm/ |
| H A D | fault.c | 2 /* Page Fault Handling for ARC (TLB Miss / ProtV)
80 vm_fault_t fault = VM_FAULT_SIGSEGV; /* handle_mm_fault() output */ in do_page_fault() local
98 * context, we must not take the fault.. in do_page_fault()
135 fault = handle_mm_fault(vma, address, flags, regs); in do_page_fault()
138 if (fault_signal_pending(fault, regs)) { in do_page_fault()
144 /* The fault is fully completed (including releasing mmap lock) */ in do_page_fault()
145 if (fault & VM_FAULT_COMPLETED) in do_page_fault()
149 * Fault retry nuances, mmap_lock already relinquished by core mm in do_page_fault()
151 if (unlikely(fault & VM_FAULT_RETRY)) { in do_page_fault()
161 * Major/minor page fault accounting in do_page_fault()
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| /linux/Documentation/i2c/ |
| H A D | fault-codes.rst | 2 I2C/SMBUS Fault Codes
5 This is a summary of the most important conventions for use of fault
9 A "Fault" is not always an "Error"
11 Not all fault reports imply errors; "page faults" should be a familiar
15 recovery, triggered by a fault report, there is no error.
17 In a similar way, sometimes a "fault" code just reports one defined
23 the right fault code, so that it can (in turn) behave correctly.
26 I2C and SMBus fault codes
29 some positive number indicating a non-fault return. The specific
36 cases (unless the hardware doesn't provide unique fault reports).
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| /linux/Documentation/gpu/amdgpu/ |
| H A D | debugging.rst | 11 `vm_fault_stop` - If non-0, halt the GPU memory controller on a GPU page fault.
17 Decoding a GPUVM Page Fault
20 If you see a GPU page fault in the kernel log, you can decode it to figure
21 out what is going wrong in your application. A page fault in your kernel
26 …[gfxhub0] no-retry page fault (src_id:0 ring:24 vmid:3 pasid:32777, for process glxinfo pid 2424 t…
40 Next you have the vmid and pasid. If the vmid is 0, this fault was likely
42 a fault in a user application. The pasid is used to link a vmid to a system
43 process id. If the process is active when the fault happens, the process
46 The GPU virtual address that caused the fault comes next.
48 The client ID indicates the GPU block that caused the fault.
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