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/linux/drivers/tee/
H A Dtee_shm.c21 struct tee_shm shm; member
42 static void release_registered_pages(struct tee_shm *shm) in release_registered_pages() argument
44 if (shm->pages) { in release_registered_pages()
45 if (shm->flags & TEE_SHM_USER_MAPPED) in release_registered_pages()
46 unpin_user_pages(shm->pages, shm->num_pages); in release_registered_pages()
48 shm_put_kernel_pages(shm->pages, shm->num_pages); in release_registered_pages()
50 kfree(shm->pages); in release_registered_pages()
54 static void tee_shm_release(struct tee_device *teedev, struct tee_shm *shm) in tee_shm_release() argument
56 void *p = shm; in tee_shm_release()
58 if (shm->flags & TEE_SHM_DMA_MEM) { in tee_shm_release()
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H A Dtee_shm_pool.c12 static int pool_op_gen_alloc(struct tee_shm_pool *pool, struct tee_shm *shm, in pool_op_gen_alloc() argument
26 shm->kaddr = (void *)va; in pool_op_gen_alloc()
27 shm->paddr = gen_pool_virt_to_phys(genpool, va); in pool_op_gen_alloc()
28 shm->size = s; in pool_op_gen_alloc()
33 shm->flags &= ~TEE_SHM_DYNAMIC; in pool_op_gen_alloc()
37 static void pool_op_gen_free(struct tee_shm_pool *pool, struct tee_shm *shm) in pool_op_gen_free() argument
39 gen_pool_free(pool->private_data, (unsigned long)shm->kaddr, in pool_op_gen_free()
40 shm->size); in pool_op_gen_free()
41 shm->kaddr = NULL; in pool_op_gen_free()
/linux/drivers/tee/amdtee/
H A Dshm_pool.c11 static int pool_op_alloc(struct tee_shm_pool *pool, struct tee_shm *shm, in pool_op_alloc() argument
26 shm->kaddr = (void *)va; in pool_op_alloc()
27 shm->paddr = __psp_pa((void *)va); in pool_op_alloc()
28 shm->size = PAGE_SIZE << order; in pool_op_alloc()
31 rc = amdtee_map_shmem(shm); in pool_op_alloc()
34 shm->kaddr = NULL; in pool_op_alloc()
41 static void pool_op_free(struct tee_shm_pool *pool, struct tee_shm *shm) in pool_op_free() argument
44 amdtee_unmap_shmem(shm); in pool_op_free()
45 free_pages((unsigned long)shm->kaddr, get_order(shm->size)); in pool_op_free()
46 shm->kaddr = NULL; in pool_op_free()
H A Dcore.c155 u32 get_buffer_id(struct tee_shm *shm) in get_buffer_id() argument
157 struct amdtee_context_data *ctxdata = shm->ctx->data; in get_buffer_id()
163 if (shmdata->kaddr == shm->kaddr) { in get_buffer_id()
343 int amdtee_map_shmem(struct tee_shm *shm) in amdtee_map_shmem() argument
351 if (!shm) in amdtee_map_shmem()
359 shmem.kaddr = shm->kaddr; in amdtee_map_shmem()
360 shmem.size = shm->size; in amdtee_map_shmem()
373 shmnode->kaddr = shm->kaddr; in amdtee_map_shmem()
375 ctxdata = shm->ctx->data; in amdtee_map_shmem()
385 void amdtee_unmap_shmem(struct tee_shm *shm) in amdtee_unmap_shmem() argument
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H A Damdtee_private.h148 int amdtee_map_shmem(struct tee_shm *shm);
150 void amdtee_unmap_shmem(struct tee_shm *shm);
171 u32 get_buffer_id(struct tee_shm *shm);
/linux/drivers/tee/optee/
H A Dffa_abi.c42 struct tee_shm *shm; member
62 struct tee_shm *shm = NULL; in optee_shm_from_ffa_handle() local
69 shm = r->shm; in optee_shm_from_ffa_handle()
72 return shm; in optee_shm_from_ffa_handle()
75 static int optee_shm_add_ffa_handle(struct optee *optee, struct tee_shm *shm, in optee_shm_add_ffa_handle() argument
84 r->shm = shm; in optee_shm_add_ffa_handle()
127 struct tee_shm *shm = NULL; in from_msg_param_ffa_mem() local
136 shm = optee_shm_from_ffa_handle(optee, mp->u.fmem.global_id); in from_msg_param_ffa_mem()
137 p->u.memref.shm = shm; in from_msg_param_ffa_mem()
139 if (shm) { in from_msg_param_ffa_mem()
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H A Dcall.c38 struct tee_shm *shm; member
238 tee_shm_free(entry->shm); in optee_shm_arg_cache_uninit()
311 entry->shm = res; in optee_get_msg_arg()
317 res = tee_shm_get_va(entry->shm, offs); in optee_get_msg_arg()
325 *shm_ret = entry->shm; in optee_get_msg_arg()
369 struct tee_shm *shm; in optee_open_session() local
378 &entry, &shm, &offs); in optee_open_session()
413 if (optee->ops->do_call_with_arg(ctx, shm, offs, in optee_open_session()
473 struct tee_shm *shm; in optee_close_session_helper() local
476 msg_arg = optee_get_msg_arg(ctx, 0, &entry, &shm, &offs); in optee_close_session_helper()
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H A Drpc.c89 msg.buf = params[2].u.memref.shm->kaddr; in handle_rpc_func_cmd_i2c_transfer()
222 struct tee_shm *shm; in optee_rpc_cmd_alloc_suppl() local
235 shm = tee_shm_get_from_id(optee->supp.ctx, param.u.value.c); in optee_rpc_cmd_alloc_suppl()
237 return shm; in optee_rpc_cmd_alloc_suppl()
240 void optee_rpc_cmd_free_suppl(struct tee_context *ctx, struct tee_shm *shm) in optee_rpc_cmd_free_suppl() argument
246 param.u.value.b = tee_shm_get_id(shm); in optee_rpc_cmd_free_suppl()
260 tee_shm_put(shm); in optee_rpc_cmd_free_suppl()
333 buf = tee_shm_get_va(params[1].u.memref.shm, in handle_rpc_func_rpmb_probe_next()
394 p0 = tee_shm_get_va(params[0].u.memref.shm, in handle_rpc_func_rpmb_frames()
396 p1 = tee_shm_get_va(params[1].u.memref.shm, in handle_rpc_func_rpmb_frames()
/linux/drivers/tee/tstee/
H A Dcore.c167 struct tee_shm *shm = NULL; in tstee_invoke_func() local
194 shm = tee_shm_get_from_id(ctx, shm_id); in tstee_invoke_func()
195 if (IS_ERR(shm)) in tstee_invoke_func()
196 return PTR_ERR(shm); in tstee_invoke_func()
198 if (shm->size < req_len) { in tstee_invoke_func()
205 handle = shm->sec_world_id; in tstee_invoke_func()
232 if (shm && shm->size >= ffa_args[TS_RPC_SERVICE_RESP_LEN]) in tstee_invoke_func()
236 if (shm) in tstee_invoke_func()
237 tee_shm_put(shm); in tstee_invoke_func()
242 static int tstee_shm_register(struct tee_context *ctx, struct tee_shm *shm, in tstee_shm_register() argument
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/linux/drivers/media/platform/samsung/s5p-mfc/
H A Ds5p_mfc_opr_v5.c224 ctx->shm.size = buf_size->shm; in s5p_mfc_alloc_instance_buffer_v5()
225 ret = s5p_mfc_alloc_priv_buf(dev, BANK_L_CTX, &ctx->shm); in s5p_mfc_alloc_instance_buffer_v5()
233 ctx->shm.ofs = ctx->shm.dma - dev->dma_base[BANK_L_CTX]; in s5p_mfc_alloc_instance_buffer_v5()
234 BUG_ON(ctx->shm.ofs & ((1 << MFC_BANK1_ALIGN_ORDER) - 1)); in s5p_mfc_alloc_instance_buffer_v5()
236 memset(ctx->shm.virt, 0, buf_size->shm); in s5p_mfc_alloc_instance_buffer_v5()
245 s5p_mfc_release_priv_buf(ctx->dev, &ctx->shm); in s5p_mfc_release_instance_buffer_v5()
263 *(u32 *)(ctx->shm.virt + ofs) = data; in s5p_mfc_write_info_v5()
271 return *(u32 *)(ctx->shm.virt + ofs); in s5p_mfc_read_info_v5()
358 mfc_write(dev, ctx->shm.ofs, S5P_FIMV_SI_CH0_HOST_WR_ADR); in s5p_mfc_set_shared_buffer()
681 unsigned int shm; in s5p_mfc_set_enc_params() local
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/linux/include/linux/
H A Dtee_core.h120 int (*shm_register)(struct tee_context *ctx, struct tee_shm *shm,
123 int (*shm_unregister)(struct tee_context *ctx, struct tee_shm *shm);
156 * @update_shm: called when registering a dma-buf to update the @shm
166 size_t offs, struct tee_shm *shm,
277 int (*alloc)(struct tee_shm_pool *pool, struct tee_shm *shm,
279 void (*free)(struct tee_shm_pool *pool, struct tee_shm *shm); in tee_shm_get_id()
284 * tee_shm_pool_alloc_res_mem() - Create a shm manager for reserved memory
335 int tee_dyn_shm_alloc_helper(struct tee_shm *shm, size_t size, size_t align,
337 struct tee_shm *shm,
341 void tee_dyn_shm_free_helper(struct tee_shm *shm,
262 tee_shm_is_dynamic(struct tee_shm * shm) tee_shm_is_dynamic() argument
278 tee_shm_get_id(struct tee_shm * shm) tee_shm_get_id() argument
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H A Dtee_drv.h82 struct tee_shm *shm; member
143 * @shm: Handle to shared memory to free
145 void tee_shm_free(struct tee_shm *shm);
149 * @shm: Shared memory handle in tee_shm_get_size() argument
154 void *tee_shm_get_va(struct tee_shm *shm, size_t offs);
158 * @shm: Shared memory handle
164 int tee_shm_get_pa(struct tee_shm *shm, size_t offs, phys_addr_t *pa); in tee_shm_get_pages()
168 * @shm: Shared memory handle
171 static inline size_t tee_shm_get_size(struct tee_shm *shm)
173 return shm in tee_shm_get_page_offset()
160 tee_shm_get_pages(struct tee_shm * shm,size_t * num_pages) tee_shm_get_pages() argument
172 tee_shm_get_page_offset(struct tee_shm * shm) tee_shm_get_page_offset() argument
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/linux/drivers/nvmem/
H A Dstm32-bsec-optee-ta.c142 struct tee_shm *shm; in stm32_bsec_optee_ta_read() local
168 shm = tee_shm_alloc_kernel_buf(ctx, num_bytes); in stm32_bsec_optee_ta_read()
169 if (IS_ERR(shm)) { in stm32_bsec_optee_ta_read()
170 ret = PTR_ERR(shm); in stm32_bsec_optee_ta_read()
175 param[1].u.memref.shm = shm; in stm32_bsec_optee_ta_read()
186 shm_buf = tee_shm_get_va(shm, 0); in stm32_bsec_optee_ta_read()
196 tee_shm_free(shm); in stm32_bsec_optee_ta_read()
207 { struct tee_shm *shm; in stm32_bsec_optee_ta_write() local
233 shm = tee_shm_alloc_kernel_buf(ctx, bytes); in stm32_bsec_optee_ta_write()
234 if (IS_ERR(shm)) { in stm32_bsec_optee_ta_write()
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/linux/drivers/rtc/
H A Drtc-optee.c136 * @shm: Memory pool shared with RTC device.
146 struct tee_shm *shm; member
166 param[0].u.memref.shm = priv->shm; in optee_rtc_readtime()
173 optee_tm = tee_shm_get_va(priv->shm, 0); in optee_rtc_readtime()
205 param[0].u.memref.shm = priv->shm; in optee_rtc_settime()
208 optee_tm = tee_shm_get_va(priv->shm, 0); in optee_rtc_settime()
293 param[0].u.memref.shm = priv->shm; in optee_rtc_read_alarm()
300 optee_alarm = tee_shm_get_va(priv->shm, 0); in optee_rtc_read_alarm()
339 param[0].u.memref.shm = priv->shm; in optee_rtc_set_alarm()
342 optee_alarm = tee_shm_get_va(priv->shm, 0); in optee_rtc_set_alarm()
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/linux/tools/testing/selftests/futex/functional/
H A Dfutex_wait.c9 #include <sys/shm.h>
106 void *shm; in TEST() local
116 shm = mmap(NULL, sizeof(f_private), PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); in TEST()
117 if (shm == MAP_FAILED) in TEST()
120 memcpy(shm, &f_private, sizeof(f_private)); in TEST()
122 futex = shm; in TEST()
131 res = futex_wake(shm, 1, 0); in TEST()
139 munmap(shm, sizeof(f_private)); in TEST()
/linux/sound/usb/usx2y/
H A Dusx2yhwdeppcm.c107 struct snd_usx2y_hwdep_pcm_shm *shm = usx2y->hwdep_pcm_shm; in usx2y_hwdep_urb_play_prepare() local
110 if (shm->playback_iso_start < 0) { in usx2y_hwdep_urb_play_prepare()
111 shm->playback_iso_start = shm->captured_iso_head - in usx2y_hwdep_urb_play_prepare()
113 if (shm->playback_iso_start < 0) in usx2y_hwdep_urb_play_prepare()
114 shm->playback_iso_start += ARRAY_SIZE(shm->captured_iso); in usx2y_hwdep_urb_play_prepare()
115 shm->playback_iso_head = shm->playback_iso_start; in usx2y_hwdep_urb_play_prepare()
121 counts = shm in usx2y_hwdep_urb_play_prepare()
144 struct snd_usx2y_hwdep_pcm_shm *shm; usx2y_usbpcm_urb_capt_iso_advance() local
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H A DusX2Yhwdep.c67 struct us428ctls_sharedmem *shm = us428->us428ctls_sharedmem; in snd_us428ctls_poll() local
74 if (shm && shm->ctl_snapshot_last != shm->ctl_snapshot_red) in snd_us428ctls_poll()
/linux/drivers/char/tpm/
H A Dtpm_ftpm_tee.c55 struct tee_shm *shm = pvt_data->shm; in ftpm_tee_tpm_op_send() local
78 .shm = shm, in ftpm_tee_tpm_op_send()
84 temp_buf = tee_shm_get_va(shm, 0); in ftpm_tee_tpm_op_send()
96 .shm = shm, in ftpm_tee_tpm_op_send()
110 temp_buf = tee_shm_get_va(shm, command_params[1].u.memref.shm_offs); in ftpm_tee_tpm_op_send()
212 pvt_data->shm = tee_shm_alloc_kernel_buf(pvt_data->ctx, in ftpm_tee_probe()
215 if (IS_ERR(pvt_data->shm)) { in ftpm_tee_probe()
245 tee_shm_free(pvt_data->shm); in ftpm_tee_probe()
279 tee_shm_free(pvt_data->shm); in ftpm_tee_remove()
307 tee_shm_free(pvt_data->shm); in ftpm_plat_tee_shutdown()
H A Dtpm_ftpm_tee.h26 * @shm: Memory pool shared with fTPM TA in TEE.
32 struct tee_shm *shm; member
/linux/Documentation/devicetree/bindings/spi/
H A Dnuvoton,wpcm450-fiu.yaml35 nuvoton,shm:
37 description: a phandle to the SHM block (see ../arm/nuvoton,shm.yaml)
55 nuvoton,shm = <&shm>;
/linux/security/keys/trusted-keys/
H A Dtrusted_tee.c76 dev_err(pvt_data.dev, "shm register failed\n"); in trusted_tee_seal()
85 param[0].u.memref.shm = reg_shm; in trusted_tee_seal()
89 param[1].u.memref.shm = reg_shm; in trusted_tee_seal()
123 dev_err(pvt_data.dev, "shm register failed\n"); in trusted_tee_unseal()
132 param[0].u.memref.shm = reg_shm; in trusted_tee_unseal()
136 param[1].u.memref.shm = reg_shm; in trusted_tee_unseal()
169 dev_err(pvt_data.dev, "key shm register failed\n"); in trusted_tee_get_random()
178 param[0].u.memref.shm = reg_shm; in trusted_tee_get_random()
/linux/ipc/
H A Dshm.c3 * linux/ipc/shm.c
7 * Fixed the shm swap deallocation (shm_unuse()), August 1998 Andrea Arcangeli.
9 * /proc/sysvipc/shm support (c) 1999 Dragos Acostachioaie <dragos@iname.com>
11 * SMP thread shm, Jean-Luc Boyard <jean-luc.boyard@siemens.fr>
31 #include <linux/shm.h>
32 #include <uapi/linux/shm.h>
68 * The task created the shm object, for
160 ipc_init_proc_interface("sysvipc/shm", in shm_init()
303 /* This is called by fork, once for every shm attach. */
349 * shm_may_destroy - identifies whether shm segment should be destroyed now
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/linux/include/uapi/linux/
H A Dshm.h24 #define SHMALL (ULONG_MAX - (1UL << 24)) /* max shm system wide (pages) */
103 __kernel_ulong_t shm_tot; /* total allocated shm */
104 __kernel_ulong_t shm_rss; /* total resident shm */
105 __kernel_ulong_t shm_swp; /* total swapped shm */
/linux/tools/testing/selftests/proc/
H A Dsetns-sysvipc.c33 #include <sys/shm.h>
101 (void)open("/proc/sysvipc/shm", O_RDONLY); in main()
115 fd = open("/proc/sysvipc/shm", O_RDONLY); in main()
/linux/tools/testing/selftests/mm/
H A Drmap.c35 SHM, enumerator
213 case SHM: in FIXTURE_TEARDOWN()
328 TEST_F(migrate, shm) in TEST_F() argument
333 snprintf(data->filename, MAX_FILENAME_LEN, "%s%s", PREFIX, suffixes[SHM]); in TEST_F()
337 data->backend = SHM; in TEST_F()

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