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Searched refs:shmem (Results 1 – 25 of 86) sorted by relevance

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/linux/drivers/gpu/drm/
A Ddrm_gem_shmem_helper.c66 shmem = kzalloc(sizeof(*shmem), GFP_KERNEL); in __drm_gem_shmem_create()
67 if (!shmem) in __drm_gem_shmem_create()
69 obj = &shmem->base; in __drm_gem_shmem_create()
104 return shmem; in __drm_gem_shmem_create()
148 if (shmem->sgt) { in drm_gem_shmem_free()
154 if (shmem->pages) in drm_gem_shmem_free()
163 kfree(shmem); in drm_gem_shmem_free()
191 if (shmem->map_wc) in drm_gem_shmem_get_pages()
236 drm_WARN_ON(shmem->base.dev, shmem->base.import_attach); in drm_gem_shmem_pin_locked()
343 shmem->vaddr = vmap(shmem->pages, obj->size >> PAGE_SHIFT, in drm_gem_shmem_vmap()
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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()
89 struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj); in drm_fbdev_shmem_get_page() local
96 page = shmem->pages[i]; // protected by active vmap in drm_fbdev_shmem_get_page()
114 struct drm_gem_shmem_object *shmem; in drm_fbdev_shmem_helper_fb_probe() local
130 shmem = to_drm_gem_shmem_obj(buffer->gem); in drm_fbdev_shmem_helper_fb_probe()
157 if (!shmem->map_wc) in drm_fbdev_shmem_helper_fb_probe()
/linux/drivers/gpu/drm/tests/
A Ddrm_gem_shmem_test.c46 struct drm_gem_shmem_object *shmem; in drm_gem_shmem_test_obj_create() local
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
120 drm_gem_shmem_free(shmem); in drm_gem_shmem_test_obj_create_private()
131 struct drm_gem_shmem_object *shmem; in drm_gem_shmem_test_pin_pages() local
142 ret = drm_gem_shmem_pin(shmem); in drm_gem_shmem_test_pin_pages()
150 drm_gem_shmem_unpin(shmem); in drm_gem_shmem_test_pin_pages()
164 struct drm_gem_shmem_object *shmem; in drm_gem_shmem_test_vmap() local
186 drm_gem_shmem_vunmap(shmem, &map); in drm_gem_shmem_test_vmap()
212 ret = drm_gem_shmem_pin(shmem); in drm_gem_shmem_test_get_pages_sgt()
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/linux/include/drm/
A Ddrm_gem_shmem_helper.h118 return (shmem->madv > 0) && in drm_gem_shmem_is_purgeable()
119 !shmem->vmap_use_count && shmem->sgt && in drm_gem_shmem_is_purgeable()
120 !shmem->base.dma_buf && !shmem->base.import_attach; in drm_gem_shmem_is_purgeable()
148 drm_gem_shmem_free(shmem); in drm_gem_shmem_object_free()
165 drm_gem_shmem_print_info(shmem, p, indent); in drm_gem_shmem_object_print_info()
179 return drm_gem_shmem_pin_locked(shmem); in drm_gem_shmem_object_pin()
193 drm_gem_shmem_unpin_locked(shmem); in drm_gem_shmem_object_unpin()
210 return drm_gem_shmem_get_sg_table(shmem); in drm_gem_shmem_object_get_sg_table()
229 return drm_gem_shmem_vmap(shmem, map); in drm_gem_shmem_object_vmap()
245 drm_gem_shmem_vunmap(shmem, map); in drm_gem_shmem_object_vunmap()
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/linux/drivers/firmware/arm_scmi/
A Dshmem.c61 if (!(ioread32(&shmem->channel_status) & in shmem_tx_prepare()
70 iowrite32(0x0, &shmem->channel_status); in shmem_tx_prepare()
72 &shmem->flags); in shmem_tx_prepare()
73 iowrite32(sizeof(shmem->msg_header) + xfer->tx.len, &shmem->length); in shmem_tx_prepare()
81 return ioread32(&shmem->msg_header); in shmem_read_header()
87 size_t len = ioread32(&shmem->length); in shmem_fetch_response()
100 size_t len = ioread32(&shmem->length); in shmem_fetch_notification()
124 return ioread32(&shmem->channel_status) & in shmem_poll_done()
131 return (ioread32(&shmem->channel_status) & in shmem_channel_free()
153 if (!shmem) in shmem_setup_iomap()
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A Dcommon.h332 void (*tx_prepare)(struct scmi_shared_mem __iomem *shmem,
335 u32 (*read_header)(struct scmi_shared_mem __iomem *shmem);
337 void (*fetch_response)(struct scmi_shared_mem __iomem *shmem,
339 void (*fetch_notification)(struct scmi_shared_mem __iomem *shmem,
341 void (*clear_channel)(struct scmi_shared_mem __iomem *shmem);
342 bool (*poll_done)(struct scmi_shared_mem __iomem *shmem,
344 bool (*channel_free)(struct scmi_shared_mem __iomem *shmem);
345 bool (*channel_intr_enabled)(struct scmi_shared_mem __iomem *shmem);
395 const struct scmi_shared_mem_operations *shmem; member
/linux/arch/riscv/kvm/
A Dvcpu_sbi_sta.c21 vcpu->arch.sta.shmem = INVALID_GPA; in kvm_riscv_vcpu_sbi_sta_reset()
27 gpa_t shmem = vcpu->arch.sta.shmem; in kvm_riscv_vcpu_record_steal_time() local
38 if (shmem == INVALID_GPA) in kvm_riscv_vcpu_record_steal_time()
46 gfn = shmem >> PAGE_SHIFT; in kvm_riscv_vcpu_record_steal_time()
50 vcpu->arch.sta.shmem = INVALID_GPA; in kvm_riscv_vcpu_record_steal_time()
90 gpa_t shmem; in kvm_sbi_sta_steal_time_set_shmem() local
105 shmem = shmem_phys_lo; in kvm_sbi_sta_steal_time_set_shmem()
122 vcpu->arch.sta.shmem = shmem; in kvm_sbi_sta_steal_time_set_shmem()
191 vcpu->arch.sta.shmem = reg_val; in kvm_riscv_vcpu_set_reg_sbi_sta()
194 vcpu->arch.sta.shmem = reg_val; in kvm_riscv_vcpu_set_reg_sbi_sta()
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/linux/drivers/gpu/drm/panfrost/
A Dpanfrost_gem_shrinker.c22 struct drm_gem_shmem_object *shmem; in panfrost_gem_shrinker_count() local
28 list_for_each_entry(shmem, &pfdev->shrinker_list, madv_list) { in panfrost_gem_shrinker_count()
29 if (drm_gem_shmem_is_purgeable(shmem)) in panfrost_gem_shrinker_count()
30 count += shmem->base.size >> PAGE_SHIFT; in panfrost_gem_shrinker_count()
50 if (!dma_resv_trylock(shmem->base.resv)) in panfrost_gem_purge()
57 dma_resv_unlock(shmem->base.resv); in panfrost_gem_purge()
68 struct drm_gem_shmem_object *shmem, *tmp; in panfrost_gem_shrinker_scan() local
77 if (drm_gem_shmem_is_purgeable(shmem) && in panfrost_gem_shrinker_scan()
78 panfrost_gem_purge(&shmem->base)) { in panfrost_gem_shrinker_scan()
79 freed += shmem->base.size >> PAGE_SHIFT; in panfrost_gem_shrinker_scan()
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A Dpanfrost_gem.c270 struct drm_gem_shmem_object *shmem; in panfrost_gem_create() local
277 shmem = drm_gem_shmem_create(dev, size); in panfrost_gem_create()
278 if (IS_ERR(shmem)) in panfrost_gem_create()
279 return ERR_CAST(shmem); in panfrost_gem_create()
281 bo = to_panfrost_bo(&shmem->base); in panfrost_gem_create()
/linux/drivers/firmware/arm_scmi/transports/
A Dmailbox.c48 core->shmem->tx_prepare(smbox->shmem, m, smbox->cinfo); in tx_prepare()
65 !core->shmem->channel_free(smbox->shmem)) { in rx_callback()
68 core->shmem->read_header(smbox->shmem), in rx_callback()
74 core->shmem->read_header(smbox->shmem), NULL); in rx_callback()
200 smbox->shmem = core->shmem->setup_iomap(cinfo, dev, tx, NULL); in mailbox_chan_setup()
201 if (IS_ERR(smbox->shmem)) in mailbox_chan_setup()
308 core->shmem->fetch_response(smbox->shmem, xfer); in mailbox_fetch_response()
316 core->shmem->fetch_notification(smbox->shmem, max_len, xfer); in mailbox_fetch_notification()
325 core->shmem->clear_channel(smbox->shmem); in mailbox_clear_channel()
327 if (!core->shmem->channel_intr_enabled(smbox->shmem)) in mailbox_clear_channel()
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A Dsmc.c62 struct scmi_shared_mem __iomem *shmem; member
80 core->shmem->read_header(scmi_info->shmem), NULL); in smc_msg_done_isr()
147 scmi_info->shmem = core->shmem->setup_iomap(cinfo, dev, tx, &res); in smc_chan_setup()
148 if (IS_ERR(scmi_info->shmem)) in smc_chan_setup()
149 return PTR_ERR(scmi_info->shmem); in smc_chan_setup()
157 void __iomem *ptr = (void __iomem *)scmi_info->shmem + size - 8; in smc_chan_setup()
232 core->shmem->tx_prepare(scmi_info->shmem, xfer, cinfo); in smc_send_message()
256 core->shmem->fetch_response(scmi_info->shmem, xfer); in smc_fetch_response()
A Doptee.c128 struct scmi_shared_mem __iomem *shmem; member
328 core->shmem->clear_channel(channel->req.shmem); in scmi_optee_clear_channel()
353 channel->req.shmem = core->shmem->setup_iomap(cinfo, dev, true, NULL); in setup_static_shmem()
354 if (IS_ERR(channel->req.shmem)) in setup_static_shmem()
355 return PTR_ERR(channel->req.shmem); in setup_static_shmem()
468 core->shmem->tx_prepare(channel->req.shmem, xfer, cinfo); in scmi_optee_send_message()
487 core->shmem->fetch_response(channel->req.shmem, xfer); in scmi_optee_fetch_response()
/linux/drivers/net/ethernet/microsoft/mana/
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/Documentation/devicetree/bindings/firmware/
A Darm,scmi.yaml106 shmem:
336 shmem:
364 - shmem
378 - shmem
398 shmem = <&cpu_scp_lpri0>,
418 shmem = <&cpu_scp_hpri0>,
494 compatible = "arm,scmi-shmem";
499 compatible = "arm,scmi-shmem";
504 compatible = "arm,scmi-shmem";
509 compatible = "arm,scmi-shmem";
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A Darm,scpi.yaml48 shmem:
170 - shmem
178 shmem = <&cpu_scp_hpri>; /* HP-NonSecure */
225 compatible = "arm,scp-shmem";
230 compatible = "arm,scp-shmem";
241 shmem = <&cpu_scp_lpri>, <&cpu_scp_hpri>;
/linux/Documentation/devicetree/bindings/mailbox/
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/Documentation/devicetree/bindings/reserved-memory/
A Dnvidia,tegra264-bpmp-shmem.yaml4 $id: http://devicetree.org/schemas/reserved-memory/nvidia,tegra264-bpmp-shmem.yaml#
17 The sub-node is named shmem@<address>.
24 const: nvidia,tegra264-bpmp-shmem
41 dram_cpu_bpmp_mail: shmem@f1be0000 {
42 compatible = "nvidia,tegra264-bpmp-shmem";
/linux/drivers/gpu/drm/panthor/
A Dpanthor_gem.c209 struct drm_gem_shmem_object *shmem; in panthor_gem_create_with_handle() local
212 shmem = drm_gem_shmem_create(ddev, *size); in panthor_gem_create_with_handle()
213 if (IS_ERR(shmem)) in panthor_gem_create_with_handle()
214 return PTR_ERR(shmem); in panthor_gem_create_with_handle()
216 bo = to_panthor_bo(&shmem->base); in panthor_gem_create_with_handle()
229 ret = drm_gem_handle_create(file, &shmem->base, handle); in panthor_gem_create_with_handle()
234 drm_gem_object_put(&shmem->base); in panthor_gem_create_with_handle()
/linux/arch/arm64/boot/dts/arm/
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";
/linux/drivers/net/arcnet/
A Dcom90xx.c88 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()
473 release_mem_region(shmem, MIRROR_SIZE); in com90xx_found()
485 check_mirror(shmem - MIRROR_SIZE, MIRROR_SIZE) == 0 && in com90xx_found()
489 first_mirror = shmem - mirror_size; in com90xx_found()
494 last_mirror = shmem + mirror_size; in com90xx_found()
503 release_mem_region(shmem, MIRROR_SIZE); in com90xx_found()
[all …]
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/drivers/gpu/drm/virtio/
A Dvirtgpu_object.c123 struct virtio_gpu_object_shmem *shmem; in virtio_gpu_create_object() local
126 shmem = kzalloc(sizeof(*shmem), GFP_KERNEL); in virtio_gpu_create_object()
127 if (!shmem) in virtio_gpu_create_object()
130 dshmem = &shmem->base.base; in virtio_gpu_create_object()
/linux/drivers/gpu/drm/lima/
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/Documentation/admin-guide/cgroup-v1/
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/
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()

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