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Searched refs:shmem (Results 1 – 25 of 67) sorted by relevance

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/linux/drivers/gpu/drm/
H A Ddrm_gem_shmem_helper.c54 static int __drm_gem_shmem_init(struct drm_device *dev, struct drm_gem_shmem_object *shmem, in __drm_gem_shmem_init() argument
57 struct drm_gem_object *obj = &shmem->base; in __drm_gem_shmem_init()
65 shmem->map_wc = false; /* dma-buf mappings use always writecombine */ in __drm_gem_shmem_init()
78 INIT_LIST_HEAD(&shmem->madv_list); in __drm_gem_shmem_init()
109 int drm_gem_shmem_init(struct drm_device *dev, struct drm_gem_shmem_object *shmem, size_t size) in drm_gem_shmem_init() argument
111 return __drm_gem_shmem_init(dev, shmem, size, false); in drm_gem_shmem_init()
118 struct drm_gem_shmem_object *shmem; in __drm_gem_shmem_create() local
128 shmem = to_drm_gem_shmem_obj(obj); in __drm_gem_shmem_create()
130 shmem = kzalloc_obj(*shmem); in __drm_gem_shmem_create()
131 if (!shmem) in __drm_gem_shmem_create()
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H A Ddrm_fbdev_shmem.c48 struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj); in drm_fbdev_shmem_fb_mmap() local
50 if (shmem->map_wc) in drm_fbdev_shmem_fb_mmap()
87 struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj); in drm_fbdev_shmem_get_page() local
94 page = shmem->pages[i]; // protected by active vmap in drm_fbdev_shmem_get_page()
140 struct drm_gem_shmem_object *shmem; in drm_fbdev_shmem_driver_fbdev_probe() local
155 shmem = to_drm_gem_shmem_obj(buffer->gem); in drm_fbdev_shmem_driver_fbdev_probe()
177 if (!shmem->map_wc) in drm_fbdev_shmem_driver_fbdev_probe()
/linux/drivers/gpu/drm/tests/
H A Ddrm_gem_shmem_test.c51 struct drm_gem_shmem_object *shmem; in drm_gem_shmem_test_obj_create() local
53 shmem = drm_gem_shmem_create(drm_dev, TEST_SIZE); in drm_gem_shmem_test_obj_create()
54 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, shmem); in drm_gem_shmem_test_obj_create()
55 KUNIT_EXPECT_EQ(test, shmem->base.size, TEST_SIZE); in drm_gem_shmem_test_obj_create()
56 KUNIT_EXPECT_NOT_NULL(test, shmem->base.filp); in drm_gem_shmem_test_obj_create()
57 KUNIT_EXPECT_NOT_NULL(test, shmem->base.funcs); in drm_gem_shmem_test_obj_create()
59 drm_gem_shmem_free(shmem); in drm_gem_shmem_test_obj_create()
71 struct drm_gem_shmem_object *shmem; in drm_gem_shmem_test_obj_create_private() local
122 shmem = to_drm_gem_shmem_obj(gem_obj); in drm_gem_shmem_test_obj_create_private()
123 KUNIT_EXPECT_PTR_EQ(test, shmem->sgt, sgt); in drm_gem_shmem_test_obj_create_private()
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/linux/drivers/gpu/drm/panthor/
H A Dpanthor_gem.c266 struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj); in panthor_gem_prime_begin_cpu_access() local
270 if (shmem->sgt) in panthor_gem_prime_begin_cpu_access()
271 dma_sync_sgtable_for_cpu(dev->dev, shmem->sgt, dir); in panthor_gem_prime_begin_cpu_access()
273 if (shmem->vaddr) in panthor_gem_prime_begin_cpu_access()
274 invalidate_kernel_vmap_range(shmem->vaddr, shmem->base.size); in panthor_gem_prime_begin_cpu_access()
293 struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj); in panthor_gem_prime_end_cpu_access() local
304 if (shmem->vaddr) in panthor_gem_prime_end_cpu_access()
305 flush_kernel_vmap_range(shmem->vaddr, shmem->base.size); in panthor_gem_prime_end_cpu_access()
307 if (shmem->sgt) in panthor_gem_prime_end_cpu_access()
308 dma_sync_sgtable_for_device(dev->dev, shmem->sgt, dir); in panthor_gem_prime_end_cpu_access()
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/linux/drivers/gpu/drm/panfrost/
H A Dpanfrost_gem.c307 struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj); in panfrost_gem_prime_begin_cpu_access() local
311 if (shmem->sgt) in panfrost_gem_prime_begin_cpu_access()
312 dma_sync_sgtable_for_cpu(dev->dev, shmem->sgt, dir); in panfrost_gem_prime_begin_cpu_access()
314 if (shmem->vaddr) in panfrost_gem_prime_begin_cpu_access()
315 invalidate_kernel_vmap_range(shmem->vaddr, shmem->base.size); in panfrost_gem_prime_begin_cpu_access()
334 struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj); in panfrost_gem_prime_end_cpu_access() local
345 if (shmem->vaddr) in panfrost_gem_prime_end_cpu_access()
346 flush_kernel_vmap_range(shmem->vaddr, shmem->base.size); in panfrost_gem_prime_end_cpu_access()
348 if (shmem->sgt) in panfrost_gem_prime_end_cpu_access()
349 dma_sync_sgtable_for_device(dev->dev, shmem->sgt, dir); in panfrost_gem_prime_end_cpu_access()
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/linux/drivers/net/ethernet/microsoft/mana/
H A Dshm_channel.c146 u64 *shmem; in mana_smc_setup_hwc() local
186 shmem = (u64 *)ptr; in mana_smc_setup_hwc()
188 *shmem = frame_addr & PAGE_FRAME_L48_MASK; in mana_smc_setup_hwc()
194 shmem = (u64 *)ptr; in mana_smc_setup_hwc()
196 *shmem = frame_addr & PAGE_FRAME_L48_MASK; in mana_smc_setup_hwc()
202 shmem = (u64 *)ptr; in mana_smc_setup_hwc()
204 *shmem = frame_addr & PAGE_FRAME_L48_MASK; in mana_smc_setup_hwc()
210 shmem = (u64 *)ptr; in mana_smc_setup_hwc()
212 *shmem = frame_addr & PAGE_FRAME_L48_MASK; in mana_smc_setup_hwc()
/linux/drivers/platform/x86/amd/hfi/
H A Dhfi.c75 struct amd_shmem_info *shmem; member
154 memcpy_fromio(amd_hfi_data->shmem, pcc_comm_addr, pcct_ext->length); in amd_hfi_fill_metadata()
157 if (amd_hfi_data->shmem->header.signature != PCC_SIGNATURE) { in amd_hfi_fill_metadata()
161 if (amd_hfi_data->shmem->version_number != AMD_HETERO_RANKING_TABLE_VER) { in amd_hfi_fill_metadata()
163 amd_hfi_data->shmem->version_number); in amd_hfi_fill_metadata()
167 for (unsigned int i = 0; i < amd_hfi_data->shmem->n_bitmaps; i++) { in amd_hfi_fill_metadata()
168 u32 bitmap = amd_hfi_data->shmem->table_data[i]; in amd_hfi_fill_metadata()
191 u32 *table = amd_hfi_data->shmem->table_data + in amd_hfi_fill_metadata()
192 amd_hfi_data->shmem->n_bitmaps + in amd_hfi_fill_metadata()
383 amd_hfi_data->shmem = devm_kzalloc(amd_hfi_data->dev, pcct_ext->length, GFP_KERNEL); in amd_hfi_metadata_parser()
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/linux/Documentation/devicetree/bindings/mailbox/
H A Dmailbox.txt26 - shmem : List of phandle pointing to the shared memory(SHM) area between the
39 Example with shared memory(shmem):
49 cl_shmem: shmem@0 {
50 compatible = "client-shmem";
58 shmem = <&cl_shmem>;
/linux/drivers/firmware/arm_scmi/
H A Dcommon.h390 void (*tx_prepare)(struct scmi_shared_mem __iomem *shmem,
394 u32 (*read_header)(struct scmi_shared_mem __iomem *shmem);
396 void (*fetch_response)(struct scmi_shared_mem __iomem *shmem,
399 void (*fetch_notification)(struct scmi_shared_mem __iomem *shmem,
402 void (*clear_channel)(struct scmi_shared_mem __iomem *shmem);
403 bool (*poll_done)(struct scmi_shared_mem __iomem *shmem,
405 bool (*channel_free)(struct scmi_shared_mem __iomem *shmem);
406 bool (*channel_intr_enabled)(struct scmi_shared_mem __iomem *shmem);
457 const struct scmi_shared_mem_operations *shmem; member
/linux/drivers/net/arcnet/
H A Dcom90xx.c58 static int com90xx_found(int ioaddr, int airq, u_long shmem, void __iomem *);
88 static int shmem; variable
93 module_param(shmem, int, 0);
107 if (!io && !irq && !shmem && !*device && com90xx_skip_probe) in com90xx_probe()
131 if (shmem) in com90xx_probe()
132 shmems[numshmems++] = shmem; in com90xx_probe()
460 static int __init com90xx_found(int ioaddr, int airq, u_long shmem, in com90xx_found() argument
473 release_mem_region(shmem, MIRROR_SIZE); in com90xx_found()
485 check_mirror(shmem - MIRROR_SIZE, MIRROR_SIZE) == 0 && in com90xx_found()
486 check_mirror(shmem - 2 * MIRROR_SIZE, MIRROR_SIZE) == 1) in com90xx_found()
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H A Darc-rimi.c126 unsigned long first_mirror, last_mirror, shmem; in arcrimi_found() local
146 shmem = dev->mem_start; in arcrimi_found()
159 check_mirror(shmem - MIRROR_SIZE, MIRROR_SIZE) == 0 && in arcrimi_found()
160 check_mirror(shmem - 2 * MIRROR_SIZE, MIRROR_SIZE) == 1) in arcrimi_found()
163 first_mirror = shmem - mirror_size; in arcrimi_found()
168 last_mirror = shmem + mirror_size; in arcrimi_found()
194 release_mem_region(shmem, MIRROR_SIZE); in arcrimi_found()
/linux/arch/arm64/boot/dts/arm/
H A Djuno-scmi.dtsi49 shmem = <&cpu_scp_lpri0 &cpu_scp_lpri1>;
63 shmem = <&cpu_scp_hpri0 &cpu_scp_hpri1>;
205 compatible = "arm,scmi-shmem";
210 compatible = "arm,scmi-shmem";
215 compatible = "arm,scmi-shmem";
220 compatible = "arm,scmi-shmem";
H A Dmorello.dtsi155 shmem = <&cpu_scp_hpri0>, <&cpu_scp_hpri1>;
305 compatible = "arm,scmi-shmem";
310 compatible = "arm,scmi-shmem";
/linux/drivers/firmware/samsung/
H A Dexynos-acpm.c169 struct acpm_shmem __iomem *shmem; member
549 struct acpm_shmem __iomem *shmem = acpm->shmem; in acpm_channels_init() local
554 acpm->num_chans = readl(&shmem->num_chans); in acpm_channels_init()
560 chans_shmem = acpm->sram_base + readl(&shmem->chans); in acpm_channels_init()
619 struct device_node *shmem; in acpm_probe() local
629 shmem = of_parse_phandle(dev->of_node, "shmem", 0); in acpm_probe()
630 ret = of_address_to_resource(shmem, 0, &res); in acpm_probe()
631 of_node_put(shmem); in acpm_probe()
647 acpm->shmem = acpm->sram_base + match_data->initdata_base; in acpm_probe()
/linux/drivers/gpu/drm/virtio/
H A Dvirtgpu_object.c149 struct virtio_gpu_object_shmem *shmem; in virtio_gpu_create_object() local
152 shmem = kzalloc_obj(*shmem); in virtio_gpu_create_object()
153 if (!shmem) in virtio_gpu_create_object()
156 dshmem = &shmem->base.base; in virtio_gpu_create_object()
/linux/drivers/gpu/drm/lima/
H A Dlima_gem.c113 struct drm_gem_shmem_object *shmem; in lima_gem_create_handle() local
118 shmem = drm_gem_shmem_create(dev, size); in lima_gem_create_handle()
119 if (IS_ERR(shmem)) in lima_gem_create_handle()
120 return PTR_ERR(shmem); in lima_gem_create_handle()
122 obj = &shmem->base; in lima_gem_create_handle()
136 struct sg_table *sgt = drm_gem_shmem_get_pages_sgt(shmem); in lima_gem_create_handle()
/linux/mm/
H A Dmincore.c61 static unsigned char mincore_swap(swp_entry_t entry, bool shmem) in mincore_swap() argument
78 return !shmem; in mincore_swap()
85 if (shmem) { in mincore_swap()
91 if (shmem) in mincore_swap()
/linux/Documentation/admin-guide/cgroup-v1/
H A Dmemcg_test.rst111 The best way to understand shmem's page state transition is to read
112 mm/shmem.c.
114 But brief explanation of the behavior of memcg around shmem will be
119 - radix-tree of shmem's inode.
126 - A new page is added to shmem's radix-tree.
158 Historically, memcg's shmem handling was poor and we saw some amount
159 of troubles here. This is because shmem is page-cache but can be
160 SwapCache. Test with shmem/tmpfs is always good test.
/linux/drivers/net/ethernet/8390/
H A Dmac8390.c738 long shmem = (start_page - WD_START_PG)<<8; in sane_block_output() local
740 memcpy_toio((void __iomem *)dev->mem_start + shmem, buf, count); in sane_block_output()
780 long shmem = (start_page - WD_START_PG)<<8; in dayna_block_output() local
782 dayna_memcpy_tocard(dev, shmem, buf, count); in dayna_block_output()
819 long shmem = (start_page - WD_START_PG)<<8; in slow_sane_block_output() local
821 word_memcpy_tocard(dev->mem_start + shmem, buf, count); in slow_sane_block_output()
/linux/arch/arm64/boot/dts/blaize/
H A Dblaize-blzp1600.dtsi50 shmem = <&scmi0_shm>;
82 scmi0_shm: scmi-shmem@800 {
83 compatible = "arm,scmi-shmem";
/linux/drivers/acpi/
H A Dacpi_pcc.c107 memcpy_toio(data->pcc_chan->shmem, (void *)value, data->ctx.length); in acpi_pcc_address_space_handler()
128 memcpy_fromio(value, data->pcc_chan->shmem, data->ctx.length); in acpi_pcc_address_space_handler()
/linux/Documentation/admin-guide/mm/
H A Dtranshuge.rst15 Currently THP only works for anonymous memory mappings and tmpfs/shmem.
373 allocation policy for the internal shmem mount by using the kernel parameter
375 seven valid policies for shmem (``always``, ``within_size``, ``advise``,
385 policies for shmem (``CONFIG_TRANSPARENT_HUGEPAGE_SHMEM_HUGE_*``) and tmpfs
390 size, ``thp_shmem`` controls each supported shmem THP size. ``thp_shmem``
395 as required. If ``thp_shmem=`` is specified at least once, any shmem THP
406 Hugepages in tmpfs/shmem
415 shmem mount (see below), ordinary tmpfs mounts will make use of all available
464 shmem / internal tmpfs
558 is incremented every time a shmem huge page is successfully
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/linux/drivers/tee/amdtee/
H A Dcore.c347 struct shmem_desc shmem; in amdtee_map_shmem() local
359 shmem.kaddr = shm->kaddr; in amdtee_map_shmem()
360 shmem.size = shm->size; in amdtee_map_shmem()
366 rc = handle_map_shmem(count, &shmem, &buf_id); in amdtee_map_shmem()
/linux/tools/testing/selftests/mm/
H A Drun_vmtests.sh347 CATEGORY="userfaultfd" run_test ${uffd_stress_bin} shmem 20 16
348 CATEGORY="userfaultfd" run_test ${uffd_stress_bin} shmem-private 20 16
488 CATEGORY="thp" run_test ./khugepaged all:shmem
490 CATEGORY="thp" run_test ./khugepaged -s 4 all:shmem
/linux/drivers/gpu/drm/i915/selftests/
H A Di915_mock_selftests.h19 selftest(shmem, shmem_utils_mock_selftests)

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