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Searched refs:shmem (Results 1 – 25 of 72) sorted by relevance

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/linux/drivers/gpu/drm/
A Ddrm_gem_shmem_helper.c95 return shmem; in __drm_gem_shmem_create()
138 if (shmem->sgt) { in drm_gem_shmem_free_object()
144 if (shmem->pages) in drm_gem_shmem_free_object()
153 kfree(shmem); in drm_gem_shmem_free_object()
178 if (shmem->map_wc) in drm_gem_shmem_get_pages_locked()
224 if (shmem->map_wc) in drm_gem_shmem_put_pages_locked()
314 shmem->vaddr = vmap(shmem->pages, obj->size >> PAGE_SHIFT, in drm_gem_shmem_vmap_locked()
425 return shmem; in drm_gem_shmem_create_with_handle()
437 return shmem; in drm_gem_shmem_create_with_handle()
475 shmem->madv = -1; in drm_gem_shmem_purge_locked()
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/linux/drivers/firmware/arm_scmi/
A Dshmem.c32 void shmem_tx_prepare(struct scmi_shared_mem __iomem *shmem, in shmem_tx_prepare() argument
41 spin_until_cond(ioread32(&shmem->channel_status) & in shmem_tx_prepare()
44 iowrite32(0x0, &shmem->channel_status); in shmem_tx_prepare()
46 &shmem->flags); in shmem_tx_prepare()
47 iowrite32(sizeof(shmem->msg_header) + xfer->tx.len, &shmem->length); in shmem_tx_prepare()
53 u32 shmem_read_header(struct scmi_shared_mem __iomem *shmem) in shmem_read_header() argument
55 return ioread32(&shmem->msg_header); in shmem_read_header()
61 xfer->hdr.status = ioread32(shmem->msg_payload); in shmem_fetch_response()
64 ioread32(&shmem->length) - 8); in shmem_fetch_response()
90 xfer_id = MSG_XTRACT_TOKEN(ioread32(&shmem->msg_header)); in shmem_poll_done()
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A Dmailbox.c30 struct scmi_shared_mem __iomem *shmem; member
39 shmem_tx_prepare(smbox->shmem, m); in tx_prepare()
61 struct device_node *shmem; in mailbox_chan_setup() local
71 shmem = of_parse_phandle(cdev->of_node, "shmem", idx); in mailbox_chan_setup()
75 ret = of_address_to_resource(shmem, 0, &res); in mailbox_chan_setup()
76 of_node_put(shmem); in mailbox_chan_setup()
83 smbox->shmem = devm_ioremap(dev, res.start, size); in mailbox_chan_setup()
84 if (!smbox->shmem) { in mailbox_chan_setup()
161 shmem_fetch_response(smbox->shmem, xfer); in mailbox_fetch_response()
176 shmem_clear_channel(smbox->shmem); in mailbox_clear_channel()
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A Dsmc.c34 struct scmi_shared_mem __iomem *shmem; member
90 scmi_info->shmem = devm_ioremap(dev, res.start, size); in smc_chan_setup()
91 if (!scmi_info->shmem) { in smc_chan_setup()
147 shmem_tx_prepare(scmi_info->shmem, xfer); in smc_send_message()
158 shmem_read_header(scmi_info->shmem), NULL); in smc_send_message()
173 shmem_fetch_response(scmi_info->shmem, xfer); in smc_fetch_response()
181 return shmem_poll_done(scmi_info->shmem, xfer); in smc_poll_done()
A Dcommon.h431 void shmem_tx_prepare(struct scmi_shared_mem __iomem *shmem,
433 u32 shmem_read_header(struct scmi_shared_mem __iomem *shmem);
434 void shmem_fetch_response(struct scmi_shared_mem __iomem *shmem,
436 void shmem_fetch_notification(struct scmi_shared_mem __iomem *shmem,
438 void shmem_clear_channel(struct scmi_shared_mem __iomem *shmem);
439 bool shmem_poll_done(struct scmi_shared_mem __iomem *shmem,
A Dbuilt-in.a14 shmem.o/
/linux/drivers/gpu/drm/virtio/
A Dvirtgpu_object.c72 if (shmem->pages) { in virtio_gpu_cleanup_object()
73 if (shmem->mapped) { in virtio_gpu_cleanup_object()
76 shmem->mapped = 0; in virtio_gpu_cleanup_object()
79 sg_free_table(shmem->pages); in virtio_gpu_cleanup_object()
80 kfree(shmem->pages); in virtio_gpu_cleanup_object()
81 shmem->pages = NULL; in virtio_gpu_cleanup_object()
141 shmem = kzalloc(sizeof(*shmem), GFP_KERNEL); in virtio_gpu_create_object()
142 if (!shmem) in virtio_gpu_create_object()
145 dshmem = &shmem->base.base; in virtio_gpu_create_object()
171 if (!shmem->pages) { in virtio_gpu_object_shmem_init()
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/linux/drivers/gpu/drm/panfrost/
A Dpanfrost_gem_shrinker.c23 struct drm_gem_shmem_object *shmem; in panfrost_gem_shrinker_count() local
29 list_for_each_entry(shmem, &pfdev->shrinker_list, madv_list) { in panfrost_gem_shrinker_count()
30 if (drm_gem_shmem_is_purgeable(shmem)) in panfrost_gem_shrinker_count()
31 count += shmem->base.size >> PAGE_SHIFT; in panfrost_gem_shrinker_count()
51 if (!mutex_trylock(&shmem->pages_lock)) in panfrost_gem_purge()
58 mutex_unlock(&shmem->pages_lock); in panfrost_gem_purge()
70 struct drm_gem_shmem_object *shmem, *tmp; in panfrost_gem_shrinker_scan() local
79 if (drm_gem_shmem_is_purgeable(shmem) && in panfrost_gem_shrinker_scan()
80 panfrost_gem_purge(&shmem->base)) { in panfrost_gem_shrinker_scan()
81 freed += shmem->base.size >> PAGE_SHIFT; in panfrost_gem_shrinker_scan()
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A Dpanfrost_gem.c241 struct drm_gem_shmem_object *shmem; in panfrost_gem_create_with_handle() local
248 shmem = drm_gem_shmem_create(dev, size); in panfrost_gem_create_with_handle()
249 if (IS_ERR(shmem)) in panfrost_gem_create_with_handle()
250 return ERR_CAST(shmem); in panfrost_gem_create_with_handle()
252 bo = to_panfrost_bo(&shmem->base); in panfrost_gem_create_with_handle()
260 ret = drm_gem_handle_create(file_priv, &shmem->base, handle); in panfrost_gem_create_with_handle()
262 drm_gem_object_put(&shmem->base); in panfrost_gem_create_with_handle()
/linux/include/drm/
A Ddrm_gem_shmem_helper.h112 int drm_gem_shmem_get_pages(struct drm_gem_shmem_object *shmem);
113 void drm_gem_shmem_put_pages(struct drm_gem_shmem_object *shmem);
121 static inline bool drm_gem_shmem_is_purgeable(struct drm_gem_shmem_object *shmem) in drm_gem_shmem_is_purgeable() argument
123 return (shmem->madv > 0) && in drm_gem_shmem_is_purgeable()
124 !shmem->vmap_use_count && shmem->sgt && in drm_gem_shmem_is_purgeable()
125 !shmem->base.dma_buf && !shmem->base.import_attach; in drm_gem_shmem_is_purgeable()
/linux/drivers/net/ethernet/microsoft/mana/
A Dshm_channel.c145 u64 *shmem; in mana_smc_setup_hwc() local
185 shmem = (u64 *)ptr; in mana_smc_setup_hwc()
187 *shmem = frame_addr & PAGE_FRAME_L48_MASK; in mana_smc_setup_hwc()
193 shmem = (u64 *)ptr; in mana_smc_setup_hwc()
195 *shmem = frame_addr & PAGE_FRAME_L48_MASK; in mana_smc_setup_hwc()
201 shmem = (u64 *)ptr; in mana_smc_setup_hwc()
203 *shmem = frame_addr & PAGE_FRAME_L48_MASK; in mana_smc_setup_hwc()
209 shmem = (u64 *)ptr; in mana_smc_setup_hwc()
211 *shmem = frame_addr & PAGE_FRAME_L48_MASK; in mana_smc_setup_hwc()
/linux/Documentation/devicetree/bindings/firmware/
A Darm,scmi.yaml68 shmem:
194 shmem:
216 - shmem
227 - shmem
237 shmem = <&cpu_scp_lpri0>,
255 shmem = <&cpu_scp_hpri0>,
308 compatible = "arm,scmi-shmem";
313 compatible = "arm,scmi-shmem";
318 compatible = "arm,scmi-shmem";
323 compatible = "arm,scmi-shmem";
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A Dnvidia,tegra186-bpmp.txt16 - shmem : List of the phandle of the TX and RX shared memory area that
80 cpu_bpmp_tx: shmem@4e000 {
81 compatible = "nvidia,tegra186-bpmp-shmem";
87 cpu_bpmp_rx: shmem@4f000 {
88 compatible = "nvidia,tegra186-bpmp-shmem";
98 shmem = <&cpu_bpmp_tx &cpu_bpmp_rx>;
A Darm,scpi.yaml47 shmem:
168 - shmem
176 shmem = <&cpu_scp_hpri>; /* HP-NonSecure */
223 compatible = "arm,scp-shmem";
228 compatible = "arm,scp-shmem";
239 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>;
A Darm,mhu.yaml110 shmem = <&cpu_scp_hpri>; /* HP-NonSecure */
144 shmem = <&cpu_scp_lpri0>,
162 shmem = <&cpu_scp_hpri0>,
/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()
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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/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/gpu/drm/lima/
A Dlima_gem.c107 struct drm_gem_shmem_object *shmem; in lima_gem_create_handle() local
112 shmem = drm_gem_shmem_create(dev, size); in lima_gem_create_handle()
113 if (IS_ERR(shmem)) in lima_gem_create_handle()
114 return PTR_ERR(shmem); in lima_gem_create_handle()
116 obj = &shmem->base; in lima_gem_create_handle()
/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()
/linux/arch/arm64/boot/dts/nvidia/
A Dtegra234.dtsi132 cpu_bpmp_tx: shmem@4e000 {
138 cpu_bpmp_rx: shmem@4f000 {
149 shmem = <&cpu_bpmp_tx &cpu_bpmp_rx>;
/linux/Documentation/devicetree/bindings/sram/
A Dsram.yaml84 - amlogic,meson-gxbb-scp-shmem
85 - amlogic,meson-axg-scp-shmem
86 - arm,juno-scp-shmem
87 - arm,scmi-shmem
88 - arm,scp-shmem
/linux/drivers/tee/amdtee/
A Dcore.c344 struct shmem_desc shmem; in amdtee_map_shmem() local
356 shmem.kaddr = shm->kaddr; in amdtee_map_shmem()
357 shmem.size = shm->size; in amdtee_map_shmem()
363 rc = handle_map_shmem(count, &shmem, &buf_id); in amdtee_map_shmem()
/linux/drivers/gpu/drm/i915/selftests/
A Di915_mock_selftests.h19 selftest(shmem, shmem_utils_mock_selftests)

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