| /openbmc/linux/tools/testing/selftests/memory-hotplug/ |
| H A D | mem-on-off-test.sh | 25 if ! ls $SYSFS/devices/system/memory/memory* > /dev/null 2>&1; then
30 if ! grep -q 1 $SYSFS/devices/system/memory/memory*/removable; then
43 for memory in $SYSFS/devices/system/memory/memory*; do
63 grep -q online $SYSFS/devices/system/memory/memory$1/state
68 grep -q offline $SYSFS/devices/system/memory/memory$1/state
73 echo online > $SYSFS/devices/system/memory/memory$1/state
78 echo offline > $SYSFS/devices/system/memory/memory$1/state
83 local memory=$1
97 local memory=$1
111 local memory=$1
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| /openbmc/linux/Documentation/devicetree/bindings/memory-controllers/fsl/ |
| H A D | fsl,ddr.yaml | 7 title: Freescale DDR memory controller
27 - fsl,bsc9132-memory-controller
28 - fsl,mpc8536-memory-controller
29 - fsl,mpc8540-memory-controller
30 - fsl,mpc8541-memory-controller
39 - fsl,p1020-memory-controller
40 - fsl,p1021-memory-controller
41 - fsl,p2020-memory-controller
42 - fsl,qoriq-memory-controller
65 memory-controller@2000 {
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| /openbmc/linux/drivers/gpu/drm/nouveau/nvkm/core/ |
| H A D | memory.c | 39 kfree(memory->tags); in nvkm_memory_tags_put()
40 memory->tags = NULL; in nvkm_memory_tags_put()
103 memory->func = func; in nvkm_memory_ctor()
110 struct nvkm_memory *memory = container_of(kref, typeof(*memory), kref); in nvkm_memory_del() local
112 if (memory->func->dtor) in nvkm_memory_del()
113 memory = memory->func->dtor(memory); in nvkm_memory_del()
114 kfree(memory); in nvkm_memory_del()
122 if (memory) { in nvkm_memory_unref()
131 if (memory) in nvkm_memory_ref()
133 return memory; in nvkm_memory_ref()
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| H A D | firmware.c | 120 struct nvkm_firmware *fw = nvkm_firmware_mem(memory); in nvkm_firmware_mem_map()
122 .memory = &fw->mem.memory, in nvkm_firmware_mem_map()
134 nvkm_firmware_mem_size(struct nvkm_memory *memory) in nvkm_firmware_mem_size() argument
140 nvkm_firmware_mem_addr(struct nvkm_memory *memory) in nvkm_firmware_mem_addr() argument
142 return nvkm_firmware_mem(memory)->phys; in nvkm_firmware_mem_addr()
146 nvkm_firmware_mem_page(struct nvkm_memory *memory) in nvkm_firmware_mem_page() argument
152 nvkm_firmware_mem_target(struct nvkm_memory *memory) in nvkm_firmware_mem_target() argument
154 if (nvkm_firmware_mem(memory)->device->func->tegra) in nvkm_firmware_mem_target()
161 nvkm_firmware_mem_dtor(struct nvkm_memory *memory) in nvkm_firmware_mem_dtor() argument
179 struct nvkm_memory *memory = &fw->mem.memory; in nvkm_firmware_dtor() local
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| /openbmc/linux/Documentation/admin-guide/mm/ |
| H A D | memory-hotplug.rst | 21 downgrading the memory capacity. This dynamic memory resizing, sometimes
67 phase, the memory is visible in memory statistics, such as free and total
140 make use of that memory: the memory block has to be "online".
143 the memory block: the memory block has to be "offlined".
149 memory.
202 memory blocks only.
212 memory blocks; if onlining fails, memory blocks are removed again.
325 however, a memory block might span memory holes. A memory block spanning memory
368 that memory provided by a memory block is managed by
443 memory.
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| H A D | numaperf.rst | 13 A system supports such heterogeneous memory by grouping each memory type
16 are provided as memory only nodes. While memory only nodes do not provide
19 nodes with local memory and a memory only node for each of compute node::
31 CPUs or separate memory I/O devices that can initiate memory requests.
42 memory targets.
54 A memory initiator may have multiple memory targets in the same access
97 memory activity.
104 slower performing memory cached by a smaller higher performing memory. The
110 The term "far memory" is used to denote the last level memory in the
118 level memory, so the higher numbered cache level corresponds to memory
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| H A D | concepts.rst | 5 The memory management in Linux is a complex system that evolved over the
21 the amount of memory that can be installed. The physical memory is not
30 The virtual memory abstracts the details of physical memory from the
35 With virtual memory, each and every memory access uses a virtual
39 memory controller can understand.
67 The address translation requires several memory accesses and memory
103 memory exceeds the maximal addressable size of virtual memory and
143 The `anonymous memory` or `anonymous mappings` represent memory that
160 memory allocated by user space processes etc.
167 reclaimable pages are page cache and anonymous memory.
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| /openbmc/linux/Documentation/arch/arm64/ |
| H A D | kdump.rst | 2 crashkernel memory reservation on arm64
9 reserved memory is needed to pre-load the kdump kernel and boot such
12 That reserved memory for kdump is adapted to be able to minimally
28 Low memory and high memory
31 For kdump reservations, low memory is the memory area under a specific
37 whole system RAM is low memory. Outside of the low memory described
38 above, the rest of system RAM is considered high memory.
63 sufficient for the low memory needs of the kdump kernel.
74 to be allocated from the high memory and low memory respectively. On
80 low memory reservation will be done subsequently.
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| /openbmc/linux/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/ |
| H A D | mem.c | 31 struct nvkm_memory memory; member
45 return nvkm_mem(memory)->target; in nvkm_mem_target()
49 nvkm_mem_page(struct nvkm_memory *memory) in nvkm_mem_page() argument
75 .memory = &mem->memory, in nvkm_mem_map_dma()
115 .memory = &mem->memory, in nvkm_mem_map_sgl()
170 *pmemory = &mem->memory; in nvkm_mem_new_host()
227 struct nvkm_memory *memory = NULL; in nvkm_mem_new_type() local
232 argv, argc, &memory); in nvkm_mem_new_type()
235 argv, argc, &memory); in nvkm_mem_new_type()
239 nvkm_memory_unref(&memory); in nvkm_mem_new_type()
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| /openbmc/linux/Documentation/ABI/testing/ |
| H A D | sysfs-devices-memory | 1 What: /sys/devices/system/memory
9 Users: hotplug memory add/remove tools
12 What: /sys/devices/system/memory/memoryX/removable
20 Users: hotplug memory remove tools
40 memory section directory name.
66 Users: hotplug memory remove tools
77 For online memory blocks, it returns in which zone memory
80 and the memory block cannot be offlined.
82 For offline memory blocks, it returns by which zone memory
87 memory block.
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| /openbmc/linux/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/ |
| H A D | nv50.c | 124 struct nvkm_memory *memory = &iobj->base.memory; in nv50_instobj_kmap() local
128 u64 size = nvkm_memory_size(memory); in nv50_instobj_kmap()
145 nvkm_memory_addr(&eobj->base.memory), in nv50_instobj_kmap()
146 nvkm_memory_size(&eobj->base.memory), in nv50_instobj_kmap()
186 memory = nv50_instobj(memory)->ram; in nv50_instobj_map()
210 iobj->base.memory.ptrs = NULL; in nv50_instobj_release()
285 nv50_instobj_size(struct nvkm_memory *memory) in nv50_instobj_size() argument
291 nv50_instobj_addr(struct nvkm_memory *memory) in nv50_instobj_addr() argument
305 nv50_instobj_release(&iobj->base.memory); in nv50_instobj_bar2()
364 *pmemory = &iobj->base.memory; in nv50_instobj_wrap()
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| H A D | base.c | 34 struct nvkm_memory *memory = &iobj->memory; in nvkm_instobj_load() local
39 if (!(map = nvkm_kmap(memory))) { in nvkm_instobj_load()
45 nvkm_done(memory); in nvkm_instobj_load()
54 struct nvkm_memory *memory = &iobj->memory; in nvkm_instobj_save() local
63 if (!(map = nvkm_kmap(memory))) { in nvkm_instobj_save()
69 nvkm_done(memory); in nvkm_instobj_save()
109 struct nvkm_memory *memory = NULL; in nvkm_instobj_new() local
120 zero, nvkm_memory_addr(memory), nvkm_memory_size(memory)); in nvkm_instobj_new()
130 nvkm_done(memory); in nvkm_instobj_new()
135 nvkm_memory_unref(&memory); in nvkm_instobj_new()
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| /openbmc/linux/Documentation/admin-guide/cgroup-v1/ |
| H A D | memory.rst | 27 uses of the memory controller. The memory controller can be used to
69 memory.usage_in_bytes show current usage for memory
73 memory.limit_in_bytes set/show limit of memory usage
77 memory.max_usage_in_bytes show max memory usage recorded
86 memory.pressure_level set memory pressure notifications
247 memsw means memory+swap. Usage of memory+swap is limited by
405 # mount -t cgroup none /sys/fs/cgroup/memory -o memory
414 # echo 4M > /sys/fs/cgroup/memory/0/memory.limit_in_bytes
418 # cat /sys/fs/cgroup/memory/0/memory.limit_in_bytes
435 # cat /sys/fs/cgroup/memory/0/memory.usage_in_bytes
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| /openbmc/phosphor-dbus-interfaces/yaml/xyz/openbmc_project/Inventory/Item/ |
| H A D | PersistentMemory.interface.yaml | 2 Implement to provide Persistent memory attributes.
7 The manufacturer ID of this memory module as defined by JEDEC in
16 The manufacturer ID of the memory subsystem controller of this memory
21 The product ID of the memory subsystem controller of this memory
34 Total size of the volatile portion memory in kibibytes (KiB).
42 Total size of the cache portion memory in kibibytes (KiB).
64 Total number of volatile regions this memory can support.
72 Number of unused spare devices available in the memory.
87 description: The current security state of this memory.
94 Memory modes supported by the memory.
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| /openbmc/linux/drivers/staging/octeon/ |
| H A D | ethernet-mem.c | 49 char *memory; in cvm_oct_free_hw_skbuff() local
52 memory = cvmx_fpa_alloc(pool); in cvm_oct_free_hw_skbuff()
53 if (memory) { in cvm_oct_free_hw_skbuff()
59 } while (memory); in cvm_oct_free_hw_skbuff()
79 char *memory; in cvm_oct_fill_hw_memory() local
94 memory = kmalloc(size + 256, GFP_ATOMIC); in cvm_oct_fill_hw_memory()
95 if (unlikely(!memory)) { in cvm_oct_fill_hw_memory()
101 *((char **)fpa - 1) = memory; in cvm_oct_fill_hw_memory()
116 char *memory; in cvm_oct_free_hw_memory() local
124 memory = *((char **)fpa - 1); in cvm_oct_free_hw_memory()
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| /openbmc/qemu/docs/ |
| H A D | memory-hotplug.txt | 1 QEMU memory hotplug
7 Guest support is required for memory hotplug to work.
22 - "slots" is the number of hotpluggable memory slots
29 Creates a guest with 1GB of memory and three hotpluggable memory slots.
31 memory the guest will see after boot is 1GB. The maximum memory the
35 Two monitor commands are used to hotplug memory:
37 - "object_add": creates a memory backend object
44 (qemu) object_add memory-backend-ram,id=mem1,size=1G
82 plugged memory.
84 Two monitor commands are used to hot unplug memory:
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| /openbmc/linux/Documentation/core-api/ |
| H A D | memory-hotplug.rst | 17 to allocate from the new memory.
24 allocate pages from the new memory.
28 longer possible from the memory but some of the memory to be offlined
30 subsystem from the indicated memory block.
34 the memory block that we attempted to offline.
37 Generated after offlining memory is complete.
63 - start_pfn is start_pfn of online/offline memory.
89 When adding/removing memory that uses memory block devices (i.e. ordinary RAM),
94 space once memory has been fully added. And when removing memory, we
100 memory faster than expected:
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| /openbmc/linux/Documentation/mm/ |
| H A D | memory-model.rst | 17 memory models it supports, what the default memory model is and
36 memory.
46 memory to the page allocator.
65 as hot-plug and hot-remove of the physical memory, alternative memory
67 the memory map for larger systems.
98 all the memory sections.
101 initialize the memory sections and the memory maps.
135 allocate memory map on the persistent memory device.
156 subject to its memory ranges being exposed through the sysfs memory
170 events related to device-memory, typically GPU memory. See
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| /openbmc/linux/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ |
| H A D | ram.c | 32 struct nvkm_memory memory; member
41 return nvkm_instobj_wrap(nvkm_vram(memory)->ram->fb->subdev.device, memory, pmemory); in nvkm_vram_kmap()
48 struct nvkm_vram *vram = nvkm_vram(memory); in nvkm_vram_map()
50 .memory = &vram->memory, in nvkm_vram_map()
59 nvkm_vram_size(struct nvkm_memory *memory) in nvkm_vram_size() argument
65 nvkm_vram_addr(struct nvkm_memory *memory) in nvkm_vram_addr() argument
67 struct nvkm_vram *vram = nvkm_vram(memory); in nvkm_vram_addr()
74 nvkm_vram_page(struct nvkm_memory *memory) in nvkm_vram_page() argument
76 return nvkm_vram(memory)->page; in nvkm_vram_page()
86 nvkm_vram_dtor(struct nvkm_memory *memory) in nvkm_vram_dtor() argument
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| /openbmc/qemu/tests/tcg/aarch64/ |
| H A D | Makefile.softmmu-target | 37 memory: CFLAGS+=-DCHECK_UNALIGNED=1
39 memory-sve: memory.c $(LINK_SCRIPT) $(CRT_OBJS) $(MINILIB_OBJS)
42 memory-sve: CFLAGS+=-DCHECK_UNALIGNED=1 -march=armv8.1-a+sve -O3 -fno-tree-loop-distribute-patterns
44 TESTS+=memory-sve
65 .PHONY: memory-record
66 run-memory-record: memory-record memory
71 $(QEMU_OPTS) memory)
73 .PHONY: memory-replay
74 run-memory-replay: memory-replay run-memory-record
79 $(QEMU_OPTS) memory)
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| /openbmc/linux/Documentation/userspace-api/media/v4l/ |
| H A D | dev-mem2mem.rst | 9 A V4L2 memory-to-memory device can compress, decompress, transform, or
10 otherwise convert video data from one format into another format, in memory.
11 Such memory-to-memory devices set the ``V4L2_CAP_VIDEO_M2M`` or
12 ``V4L2_CAP_VIDEO_M2M_MPLANE`` capability. Examples of memory-to-memory
16 A memory-to-memory video node acts just like a normal video node, but it
17 supports both output (sending frames from memory to the hardware)
19 memory) stream I/O. An application will have to setup the stream I/O for
23 Memory-to-memory devices function as a shared resource: you can
32 One of the most common memory-to-memory device is the codec. Codecs
35 See :ref:`codec-controls`. More details on how to use codec memory-to-memory
|
| /openbmc/linux/fs/btrfs/tests/ |
| H A D | extent-io-tests.c | 707 if (!memory) { in test_eb_mem_ops()
725 memcpy(memory, memory + 16, 16); in test_eb_mem_ops()
731 memcpy(memory, memory + 2048, 16); in test_eb_mem_ops()
736 memcpy(memory, memory + 2048, 2048); in test_eb_mem_ops()
742 memmove(memory + 512, memory + 256, 512); in test_eb_mem_ops()
748 memmove(memory + 2048, memory + 512, 2048); in test_eb_mem_ops()
753 memmove(memory + 512, memory + 2048, 2048); in test_eb_mem_ops()
760 memcpy(memory, memory + 4096 - 128, 256); in test_eb_mem_ops()
766 memcpy(memory + 4096 - 128, memory + 4096 + 128, 256); in test_eb_mem_ops()
772 memmove(memory + 4096 - 128, memory + 4096 - 64, 256); in test_eb_mem_ops()
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| /openbmc/qemu/tests/multiboot/ |
| H A D | mmap.out | 6 Lower memory: 639k
7 Upper memory: 129920k
9 e820 memory map:
24 Lower memory: 639k
25 Upper memory: 104k
27 e820 memory map:
41 Lower memory: 639k
44 e820 memory map:
59 Lower memory: 639k
62 e820 memory map:
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| /openbmc/linux/Documentation/devicetree/bindings/memory-controllers/ |
| H A D | nvidia,tegra210-emc.yaml | 15 sent from the memory controller.
26 - description: external memory clock
36 memory-region:
39 phandle to a reserved memory region describing the table of EMC
42 nvidia,memory-controller:
45 phandle of the memory controller node
52 - nvidia,memory-controller
61 reserved-memory {
72 external-memory-controller@7001b000 {
80 memory-region = <&emc_table>;
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| /openbmc/linux/Documentation/devicetree/bindings/reserved-memory/ |
| H A D | xen,shared-memory.txt | 1 * Xen hypervisor reserved-memory binding
3 Expose one or more memory regions as reserved-memory to the guest
5 to be a shared memory area across multiple virtual machines for
8 For each of these pre-shared memory regions, a range is exposed under
9 the /reserved-memory node as a child node. Each range sub-node is named
13 compatible = "xen,shared-memory-v1"
16 the base guest physical address and size of the shared memory region
20 memory region used for the mapping in the borrower VM.
23 a string that identifies the shared memory region as specified in
|