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Searched refs:shmem (Results 1 – 25 of 78) sorted by relevance

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/linux/drivers/gpu/drm/
H A Ddrm_gem_shmem_helper.c31 * This library provides helpers for GEM objects backed by shmem buffers
52 static int __drm_gem_shmem_init(struct drm_device *dev, struct drm_gem_shmem_object *shmem, in __drm_gem_shmem_init() argument
55 struct drm_gem_object *obj = &shmem->base; in __drm_gem_shmem_init()
63 shmem->map_wc = false; /* dma-buf mappings use always writecombine */ in __drm_gem_shmem_init()
76 INIT_LIST_HEAD(&shmem->madv_list); in __drm_gem_shmem_init()
99 * @shmem: The allocated shmem GEM object.
105 int drm_gem_shmem_init(struct drm_device *dev, struct drm_gem_shmem_object *shmem, size_t size) in drm_gem_shmem_init()
107 return __drm_gem_shmem_init(dev, shmem, size, false, NULL); in drm_gem_shmem_init()
115 struct drm_gem_shmem_object *shmem; in __drm_gem_shmem_create()
104 drm_gem_shmem_init(struct drm_device * dev,struct drm_gem_shmem_object * shmem,size_t size) drm_gem_shmem_init() argument
114 struct drm_gem_shmem_object *shmem; __drm_gem_shmem_create() local
185 drm_gem_shmem_release(struct drm_gem_shmem_object * shmem) drm_gem_shmem_release() argument
222 drm_gem_shmem_free(struct drm_gem_shmem_object * shmem) drm_gem_shmem_free() argument
229 drm_gem_shmem_get_pages_locked(struct drm_gem_shmem_object * shmem) drm_gem_shmem_get_pages_locked() argument
269 drm_gem_shmem_put_pages_locked(struct drm_gem_shmem_object * shmem) drm_gem_shmem_put_pages_locked() argument
289 drm_gem_shmem_pin_locked(struct drm_gem_shmem_object * shmem) drm_gem_shmem_pin_locked() argument
308 drm_gem_shmem_unpin_locked(struct drm_gem_shmem_object * shmem) drm_gem_shmem_unpin_locked() argument
327 drm_gem_shmem_pin(struct drm_gem_shmem_object * shmem) drm_gem_shmem_pin() argument
354 drm_gem_shmem_unpin(struct drm_gem_shmem_object * shmem) drm_gem_shmem_unpin() argument
384 drm_gem_shmem_vmap_locked(struct drm_gem_shmem_object * shmem,struct iosys_map * map) drm_gem_shmem_vmap_locked() argument
447 drm_gem_shmem_vunmap_locked(struct drm_gem_shmem_object * shmem,struct iosys_map * map) drm_gem_shmem_vunmap_locked() argument
474 struct drm_gem_shmem_object *shmem; drm_gem_shmem_create_with_handle() local
495 drm_gem_shmem_madvise_locked(struct drm_gem_shmem_object * shmem,int madv) drm_gem_shmem_madvise_locked() argument
508 drm_gem_shmem_purge_locked(struct drm_gem_shmem_object * shmem) drm_gem_shmem_purge_locked() argument
574 struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj); drm_gem_shmem_fault() local
603 struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj); drm_gem_shmem_vm_open() local
625 struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj); drm_gem_shmem_vm_close() local
652 drm_gem_shmem_mmap(struct drm_gem_shmem_object * shmem,struct vm_area_struct * vma) drm_gem_shmem_mmap() argument
699 drm_gem_shmem_print_info(const struct drm_gem_shmem_object * shmem,struct drm_printer * p,unsigned int indent) drm_gem_shmem_print_info() argument
726 drm_gem_shmem_get_sg_table(struct drm_gem_shmem_object * shmem) drm_gem_shmem_get_sg_table() argument
736 drm_gem_shmem_get_pages_sgt_locked(struct drm_gem_shmem_object * shmem) drm_gem_shmem_get_pages_sgt_locked() argument
789 drm_gem_shmem_get_pages_sgt(struct drm_gem_shmem_object * shmem) drm_gem_shmem_get_pages_sgt() argument
825 struct drm_gem_shmem_object *shmem; drm_gem_shmem_prime_import_sg_table() local
852 struct drm_gem_shmem_object *shmem; drm_gem_shmem_prime_import_no_map() local
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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.c46 struct drm_gem_shmem_object *shmem; in drm_gem_shmem_test_obj_create() local
48 shmem = drm_gem_shmem_create(drm_dev, TEST_SIZE); in drm_gem_shmem_test_obj_create()
49 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, shmem); in drm_gem_shmem_test_obj_create()
50 KUNIT_EXPECT_EQ(test, shmem->base.size, TEST_SIZE); in drm_gem_shmem_test_obj_create()
51 KUNIT_EXPECT_NOT_NULL(test, shmem->base.filp); in drm_gem_shmem_test_obj_create()
52 KUNIT_EXPECT_NOT_NULL(test, shmem->base.funcs); in drm_gem_shmem_test_obj_create()
54 drm_gem_shmem_free(shmem); in drm_gem_shmem_test_obj_create()
66 struct drm_gem_shmem_object *shmem; in drm_gem_shmem_test_obj_create_private() local
117 shmem = to_drm_gem_shmem_obj(gem_obj); in drm_gem_shmem_test_obj_create_private()
118 KUNIT_EXPECT_PTR_EQ(test, shmem->sgt, sgt); in drm_gem_shmem_test_obj_create_private()
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/linux/drivers/firmware/arm_scmi/
H A Dshmem.c88 static void shmem_tx_prepare(struct scmi_shared_mem __iomem *shmem, in shmem_tx_prepare() argument
110 spin_until_cond((ioread32(&shmem->channel_status) & in shmem_tx_prepare()
113 if (!(ioread32(&shmem->channel_status) & in shmem_tx_prepare()
122 iowrite32(0x0, &shmem->channel_status); in shmem_tx_prepare()
124 &shmem->flags); in shmem_tx_prepare()
125 iowrite32(sizeof(shmem->msg_header) + xfer->tx.len, &shmem->length); in shmem_tx_prepare()
126 iowrite32(pack_scmi_header(&xfer->hdr), &shmem->msg_header); in shmem_tx_prepare()
128 copy_toio(shmem->msg_payload, xfer->tx.buf, xfer->tx.len); in shmem_tx_prepare()
131 static u32 shmem_read_header(struct scmi_shared_mem __iomem *shmem) in shmem_read_header() argument
133 return ioread32(&shmem->msg_header); in shmem_read_header()
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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/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/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/gpu/drm/panthor/
H A Dpanthor_gem.c266 struct drm_gem_shmem_object *shmem; in panthor_gem_create_with_handle() local
269 shmem = drm_gem_shmem_create(ddev, *size); in panthor_gem_create_with_handle()
270 if (IS_ERR(shmem)) in panthor_gem_create_with_handle()
271 return PTR_ERR(shmem); in panthor_gem_create_with_handle()
273 bo = to_panthor_bo(&shmem->base); in panthor_gem_create_with_handle()
291 if (shmem->map_wc) { in panthor_gem_create_with_handle()
294 sgt = drm_gem_shmem_get_pages_sgt(shmem); in panthor_gem_create_with_handle()
305 ret = drm_gem_handle_create(file, &shmem->base, handle); in panthor_gem_create_with_handle()
311 drm_gem_object_put(&shmem->base); in panthor_gem_create_with_handle()
/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/mailbox/
H A Dpcc.c297 pcc_hdr = pchan->chan.shmem; in pcc_chan_acknowledge()
314 memcpy_fromio(&pcc_header, pchan->chan.shmem, in write_response()
320 memcpy_fromio(buffer, pchan->chan.shmem, data_len); in write_response()
412 pcc_mchan->shmem = acpi_os_ioremap(pcc_mchan->shmem_base_addr, in pcc_mbox_request_channel()
414 if (!pcc_mchan->shmem) in pcc_mbox_request_channel()
453 if (pcc_mbox_chan->shmem) { in pcc_mbox_free_channel()
454 iounmap(pcc_mbox_chan->shmem); in pcc_mbox_free_channel()
455 pcc_mbox_chan->shmem = NULL; in pcc_mbox_free_channel()
482 memcpy_toio(pcc_mbox_chan->shmem, data, len); in pcc_write_to_buffer()
/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/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.sh341 CATEGORY="userfaultfd" run_test ${uffd_stress_bin} shmem 20 16
342 CATEGORY="userfaultfd" run_test ${uffd_stress_bin} shmem-private 20 16
502 CATEGORY="thp" run_test ./khugepaged all:shmem
504 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)
/linux/include/acpi/
H A Dpcc.h15 void __iomem *shmem; member
/linux/arch/arm64/boot/dts/cix/
H A Dsky1.dtsi162 shmem = <&ap2pm_scmi_mem>, <&pm2ap_scmi_mem>;
372 ap2pm_scmi_mem: shmem@6590000 {
373 compatible = "arm,scmi-shmem";
386 pm2ap_scmi_mem: shmem@65a0000 {
387 compatible = "arm,scmi-shmem";

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