| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Copyright (c) 2012-2020, The Linux Foundation. All rights reserved. |
| */ |
| #include <linux/dma-buf.h> |
| #include <linux/dma-mapping.h> |
| #include <linux/slab.h> |
| #include <linux/completion.h> |
| #include <linux/pagemap.h> |
| #include <linux/mm.h> |
| #include <linux/fs.h> |
| #include <linux/sched.h> |
| #include <linux/module.h> |
| #include <linux/cdev.h> |
| #include <linux/list.h> |
| #include <linux/hash.h> |
| #include <linux/msm_ion.h> |
| #include <soc/qcom/secure_buffer.h> |
| #include <linux/rpmsg.h> |
| #include <linux/ipc_logging.h> |
| #include <soc/qcom/subsystem_notif.h> |
| #include <soc/qcom/subsystem_restart.h> |
| #include <soc/qcom/service-notifier.h> |
| #include <soc/qcom/service-locator.h> |
| #include <linux/scatterlist.h> |
| #include <linux/fs.h> |
| #include <linux/uaccess.h> |
| #include <linux/device.h> |
| #include <linux/of.h> |
| #include <linux/of_address.h> |
| #include <linux/of_platform.h> |
| #include <linux/dma-contiguous.h> |
| #include <linux/cma.h> |
| #include <linux/iommu.h> |
| #include <linux/sort.h> |
| #include <linux/msm_dma_iommu_mapping.h> |
| #include "adsprpc_compat.h" |
| #include "adsprpc_shared.h" |
| #include <soc/qcom/ramdump.h> |
| #include <linux/delay.h> |
| #include <linux/debugfs.h> |
| #include <linux/pm_qos.h> |
| #include <linux/stat.h> |
| #include <linux/cpumask.h> |
| |
| #define CREATE_TRACE_POINTS |
| #include <trace/events/fastrpc.h> |
| |
| #define TZ_PIL_PROTECT_MEM_SUBSYS_ID 0x0C |
| #define TZ_PIL_CLEAR_PROTECT_MEM_SUBSYS_ID 0x0D |
| #define TZ_PIL_AUTH_QDSP6_PROC 1 |
| #define ADSP_MMAP_HEAP_ADDR 4 |
| #define ADSP_MMAP_REMOTE_HEAP_ADDR 8 |
| #define ADSP_MMAP_ADD_PAGES 0x1000 |
| #define ADSP_MMAP_ADD_PAGES_LLC 0x3000 |
| #define FASTRPC_DMAHANDLE_NOMAP (16) |
| |
| #define FASTRPC_ENOSUCH 39 |
| #define VMID_SSC_Q6 5 |
| #define VMID_ADSP_Q6 6 |
| #define DEBUGFS_SIZE 3072 |
| #define UL_SIZE 25 |
| #define PID_SIZE 10 |
| |
| #define AUDIO_PDR_SERVICE_LOCATION_CLIENT_NAME "audio_pdr_adsprpc" |
| #define AUDIO_PDR_ADSP_SERVICE_NAME "avs/audio" |
| #define ADSP_AUDIOPD_NAME "msm/adsp/audio_pd" |
| |
| #define SENSORS_PDR_ADSP_SERVICE_LOCATION_CLIENT_NAME "sensors_pdr_adsprpc" |
| #define SENSORS_PDR_ADSP_SERVICE_NAME "tms/servreg" |
| #define ADSP_SENSORPD_NAME "msm/adsp/sensor_pd" |
| |
| #define SENSORS_PDR_SLPI_SERVICE_LOCATION_CLIENT_NAME "sensors_pdr_sdsprpc" |
| #define SENSORS_PDR_SLPI_SERVICE_NAME SENSORS_PDR_ADSP_SERVICE_NAME |
| #define SLPI_SENSORPD_NAME "msm/slpi/sensor_pd" |
| |
| #define FASTRPC_SECURE_WAKE_SOURCE_CLIENT_NAME "adsprpc-secure" |
| #define FASTRPC_NON_SECURE_WAKE_SOURCE_CLIENT_NAME "adsprpc-non_secure" |
| |
| #define RPC_TIMEOUT (5 * HZ) |
| #define BALIGN 128 |
| #define NUM_CHANNELS 4 /* adsp, mdsp, slpi, cdsp*/ |
| #define NUM_SESSIONS 9 /*8 compute, 1 cpz*/ |
| #define M_FDLIST (16) |
| #define M_CRCLIST (64) |
| #define SESSION_ID_INDEX (30) |
| #define FASTRPC_CTX_MAGIC (0xbeeddeed) |
| #define FASTRPC_CTX_MAX (256) |
| #define FASTRPC_CTXID_MASK (0xFF0) |
| #define NUM_DEVICES 2 /* adsprpc-smd, adsprpc-smd-secure */ |
| #define MINOR_NUM_DEV 0 |
| #define MINOR_NUM_SECURE_DEV 1 |
| #define NON_SECURE_CHANNEL 0 |
| #define SECURE_CHANNEL 1 |
| |
| #define IS_CACHE_ALIGNED(x) (((x) & ((L1_CACHE_BYTES)-1)) == 0) |
| #ifndef ION_FLAG_CACHED |
| #define ION_FLAG_CACHED (1) |
| #endif |
| |
| #define ADSP_DOMAIN_ID (0) |
| #define MDSP_DOMAIN_ID (1) |
| #define SDSP_DOMAIN_ID (2) |
| #define CDSP_DOMAIN_ID (3) |
| |
| /* ctxid of every message is OR-ed with fl->pd (0/1/2) before */ |
| /* it is sent to DSP. So mask 2 LSBs to retrieve actual context */ |
| #define CONTEXT_PD_CHECK (3) |
| |
| #define RH_CID ADSP_DOMAIN_ID |
| |
| #define PERF_KEYS \ |
| "count:flush:map:copy:rpmsg:getargs:putargs:invalidate:invoke" |
| #define FASTRPC_STATIC_HANDLE_PROCESS_GROUP (1) |
| #define FASTRPC_STATIC_HANDLE_DSP_UTILITIES (2) |
| #define FASTRPC_STATIC_HANDLE_LISTENER (3) |
| #define FASTRPC_STATIC_HANDLE_MAX (20) |
| #define FASTRPC_LATENCY_CTRL_ENB (1) |
| |
| /* Maximum PM timeout that can be voted through fastrpc*/ |
| #define MAX_PM_TIMEOUT_MS 50 |
| |
| /* timeout in us for busy polling after early response from remote processor */ |
| #define FASTRPC_POLL_TIME (4000) |
| |
| /* timeout in us for polling without preempt */ |
| #define FASTRPC_POLL_TIME_WITHOUT_PREEMPT (500) |
| |
| /* timeout in us for polling completion signal after user early hint */ |
| #define FASTRPC_USER_EARLY_HINT_TIMEOUT (500) |
| |
| /* Early wake up poll completion number received from remote processor */ |
| #define FASTRPC_EARLY_WAKEUP_POLL (0xabbccdde) |
| |
| /* latency in us, early wake up signal used below this value */ |
| #define FASTRPC_EARLY_WAKEUP_LATENCY (200) |
| |
| /* response version number */ |
| #define FASTRPC_RSP_VERSION2 (2) |
| |
| /* CPU feature information to DSP */ |
| #define FASTRPC_CPUINFO_DEFAULT (0) |
| #define FASTRPC_CPUINFO_EARLY_WAKEUP (1) |
| |
| #define INIT_FILELEN_MAX (2*1024*1024) |
| #define INIT_MEMLEN_MAX (8*1024*1024) |
| #define MAX_CACHE_BUF_SIZE (8*1024*1024) |
| |
| #define PERF_END (void)0 |
| |
| #define PERF(enb, cnt, ff) \ |
| {\ |
| struct timespec64 startT = {0};\ |
| int64_t *counter = cnt;\ |
| if (enb && counter) {\ |
| ktime_get_real_ts64(&startT);\ |
| } \ |
| ff ;\ |
| if (enb && counter) {\ |
| *counter += getnstimediff(&startT);\ |
| } \ |
| } |
| |
| #define GET_COUNTER(perf_ptr, offset) \ |
| (perf_ptr != NULL ?\ |
| (((offset >= 0) && (offset < PERF_KEY_MAX)) ?\ |
| (int64_t *)(perf_ptr + offset)\ |
| : (int64_t *)NULL) : (int64_t *)NULL) |
| |
| #define FASTRPC_GLINK_LOG_PAGES 8 |
| #define LOG_FASTRPC_GLINK_MSG(ctx, x, ...) \ |
| do { \ |
| if (ctx) \ |
| ipc_log_string(ctx, "%s (%d, %d): "x, \ |
| current->comm, current->tgid, current->pid, \ |
| ##__VA_ARGS__); \ |
| } while (0) |
| |
| static int fastrpc_pdr_notifier_cb(struct notifier_block *nb, |
| unsigned long code, |
| void *data); |
| static struct dentry *debugfs_root; |
| static struct dentry *debugfs_global_file; |
| |
| static inline void mem_barrier(void) |
| { |
| __asm__ __volatile__("dmb sy":::"memory"); |
| } |
| |
| static inline uint64_t buf_page_start(uint64_t buf) |
| { |
| uint64_t start = (uint64_t) buf & PAGE_MASK; |
| return start; |
| } |
| |
| static inline uint64_t buf_page_offset(uint64_t buf) |
| { |
| uint64_t offset = (uint64_t) buf & (PAGE_SIZE - 1); |
| return offset; |
| } |
| |
| static inline uint64_t buf_num_pages(uint64_t buf, size_t len) |
| { |
| uint64_t start = buf_page_start(buf) >> PAGE_SHIFT; |
| uint64_t end = (((uint64_t) buf + len - 1) & PAGE_MASK) >> PAGE_SHIFT; |
| uint64_t nPages = end - start + 1; |
| return nPages; |
| } |
| |
| static inline uint64_t buf_page_size(uint32_t size) |
| { |
| uint64_t sz = (size + (PAGE_SIZE - 1)) & PAGE_MASK; |
| |
| return sz > PAGE_SIZE ? sz : PAGE_SIZE; |
| } |
| |
| static inline void *uint64_to_ptr(uint64_t addr) |
| { |
| void *ptr = (void *)((uintptr_t)addr); |
| |
| return ptr; |
| } |
| |
| static inline uint64_t ptr_to_uint64(void *ptr) |
| { |
| uint64_t addr = (uint64_t)((uintptr_t)ptr); |
| |
| return addr; |
| } |
| |
| struct secure_vm { |
| int *vmid; |
| int *vmperm; |
| int vmcount; |
| }; |
| |
| struct qos_cores { |
| int *coreno; |
| int corecount; |
| }; |
| |
| struct fastrpc_file; |
| |
| struct fastrpc_buf { |
| struct hlist_node hn; |
| struct hlist_node hn_rem; |
| struct fastrpc_file *fl; |
| void *virt; |
| uint64_t phys; |
| size_t size; |
| unsigned long dma_attr; |
| uintptr_t raddr; |
| uint32_t flags; |
| int remote; |
| }; |
| |
| struct fastrpc_ctx_lst; |
| |
| struct overlap { |
| uintptr_t start; |
| uintptr_t end; |
| int raix; |
| uintptr_t mstart; |
| uintptr_t mend; |
| uintptr_t offset; |
| int do_cmo; /*used for cache maintenance of inrout buffers*/ |
| }; |
| |
| struct smq_invoke_ctx { |
| struct hlist_node hn; |
| struct completion work; |
| int retval; |
| int pid; |
| int tgid; |
| remote_arg_t *lpra; |
| remote_arg64_t *rpra; |
| remote_arg64_t *lrpra; /* Local copy of rpra for put_args */ |
| int *fds; |
| unsigned int *attrs; |
| struct fastrpc_mmap **maps; |
| struct fastrpc_buf *buf; |
| size_t used; |
| struct fastrpc_file *fl; |
| uint32_t handle; |
| uint32_t sc; |
| struct overlap *overs; |
| struct overlap **overps; |
| struct smq_msg msg; |
| uint32_t *crc; |
| unsigned int magic; |
| uint64_t ctxid; |
| /* response flags from remote processor */ |
| enum fastrpc_response_flags rspFlags; |
| /* user hint of completion time in us */ |
| uint32_t earlyWakeTime; |
| /* work done status flag */ |
| bool isWorkDone; |
| }; |
| |
| struct fastrpc_ctx_lst { |
| struct hlist_head pending; |
| struct hlist_head interrupted; |
| }; |
| |
| struct fastrpc_smmu { |
| struct device *dev; |
| const char *dev_name; |
| int cb; |
| int enabled; |
| int faults; |
| int secure; |
| int coherent; |
| }; |
| |
| struct fastrpc_session_ctx { |
| struct device *dev; |
| struct fastrpc_smmu smmu; |
| int used; |
| }; |
| |
| struct fastrpc_static_pd { |
| char *servloc_name; |
| char *spdname; |
| struct notifier_block pdrnb; |
| struct notifier_block get_service_nb; |
| void *pdrhandle; |
| uint64_t pdrcount; |
| uint64_t prevpdrcount; |
| int ispdup; |
| int cid; |
| }; |
| |
| struct fastrpc_dsp_capabilities { |
| uint32_t is_cached; //! Flag if dsp attributes are cached |
| uint32_t dsp_attributes[FASTRPC_MAX_DSP_ATTRIBUTES]; |
| }; |
| |
| struct fastrpc_channel_ctx { |
| char *name; |
| char *subsys; |
| struct rpmsg_device *rpdev; |
| struct device *dev; |
| struct fastrpc_session_ctx session[NUM_SESSIONS]; |
| struct fastrpc_static_pd spd[NUM_SESSIONS]; |
| struct completion work; |
| struct completion workport; |
| struct notifier_block nb; |
| struct mutex smd_mutex; |
| struct mutex rpmsg_mutex; |
| uint64_t sesscount; |
| uint64_t ssrcount; |
| void *handle; |
| uint64_t prevssrcount; |
| int issubsystemup; |
| int vmid; |
| struct secure_vm rhvm; |
| int ramdumpenabled; |
| void *rh_dump_dev; |
| /* Indicates, if channel is restricted to secure node only */ |
| int secure; |
| struct fastrpc_dsp_capabilities dsp_cap_kernel; |
| void *ipc_log_ctx; |
| /* cpu capabilities shared to DSP */ |
| uint64_t cpuinfo_todsp; |
| bool cpuinfo_status; |
| struct smq_invoke_ctx *ctxtable[FASTRPC_CTX_MAX]; |
| spinlock_t ctxlock; |
| }; |
| |
| struct fastrpc_apps { |
| struct fastrpc_channel_ctx *channel; |
| struct cdev cdev; |
| struct class *class; |
| struct smq_phy_page range; |
| struct hlist_head maps; |
| uint32_t staticpd_flags; |
| dev_t dev_no; |
| int compat; |
| struct hlist_head drivers; |
| spinlock_t hlock; |
| struct device *dev; |
| unsigned int latency; |
| int rpmsg_register; |
| bool legacy_remote_heap; |
| /* Unique job id for each message */ |
| uint64_t jobid[NUM_CHANNELS]; |
| struct device *secure_dev; |
| struct device *non_secure_dev; |
| /* Secure subsystems like ADSP/SLPI will use secure client */ |
| struct wakeup_source *wake_source_secure; |
| /* Non-secure subsystem like CDSP will use regular client */ |
| struct wakeup_source *wake_source; |
| struct qos_cores silvercores; |
| uint32_t max_size_limit; |
| }; |
| |
| struct fastrpc_mmap { |
| struct hlist_node hn; |
| struct fastrpc_file *fl; |
| struct fastrpc_apps *apps; |
| int fd; |
| uint32_t flags; |
| struct dma_buf *buf; |
| struct sg_table *table; |
| struct dma_buf_attachment *attach; |
| struct ion_handle *handle; |
| uint64_t phys; |
| size_t size; |
| uintptr_t va; |
| size_t len; |
| int refs; |
| uintptr_t raddr; |
| int uncached; |
| int secure; |
| uintptr_t attr; |
| }; |
| |
| enum fastrpc_perfkeys { |
| PERF_COUNT = 0, |
| PERF_FLUSH = 1, |
| PERF_MAP = 2, |
| PERF_COPY = 3, |
| PERF_LINK = 4, |
| PERF_GETARGS = 5, |
| PERF_PUTARGS = 6, |
| PERF_INVARGS = 7, |
| PERF_INVOKE = 8, |
| PERF_KEY_MAX = 9, |
| }; |
| |
| struct fastrpc_perf { |
| int64_t count; |
| int64_t flush; |
| int64_t map; |
| int64_t copy; |
| int64_t link; |
| int64_t getargs; |
| int64_t putargs; |
| int64_t invargs; |
| int64_t invoke; |
| int64_t tid; |
| struct hlist_node hn; |
| }; |
| |
| struct fastrpc_file { |
| struct hlist_node hn; |
| spinlock_t hlock; |
| struct hlist_head maps; |
| struct hlist_head cached_bufs; |
| struct hlist_head remote_bufs; |
| struct fastrpc_ctx_lst clst; |
| struct fastrpc_session_ctx *sctx; |
| struct fastrpc_buf *init_mem; |
| struct fastrpc_session_ctx *secsctx; |
| uint32_t mode; |
| uint32_t profile; |
| int sessionid; |
| int tgid; |
| int cid; |
| uint64_t ssrcount; |
| int pd; |
| char *servloc_name; |
| int file_close; |
| int dsp_proc_init; |
| struct fastrpc_apps *apps; |
| struct hlist_head perf; |
| struct dentry *debugfs_file; |
| struct mutex perf_mutex; |
| struct pm_qos_request pm_qos_req; |
| int qos_request; |
| struct mutex map_mutex; |
| struct mutex internal_map_mutex; |
| /* Identifies the device (MINOR_NUM_DEV / MINOR_NUM_SECURE_DEV) */ |
| int dev_minor; |
| char *debug_buf; |
| /* Flag to enable PM wake/relax voting for every remote invoke */ |
| int wake_enable; |
| uint32_t ws_timeout; |
| }; |
| |
| static struct fastrpc_apps gfa; |
| |
| static struct fastrpc_channel_ctx gcinfo[NUM_CHANNELS] = { |
| { |
| .name = "adsprpc-smd", |
| .subsys = "adsp", |
| .spd = { |
| { |
| .servloc_name = |
| AUDIO_PDR_SERVICE_LOCATION_CLIENT_NAME, |
| .spdname = ADSP_AUDIOPD_NAME, |
| .pdrnb.notifier_call = |
| fastrpc_pdr_notifier_cb, |
| .cid = ADSP_DOMAIN_ID, |
| }, |
| { |
| .servloc_name = |
| SENSORS_PDR_ADSP_SERVICE_LOCATION_CLIENT_NAME, |
| .spdname = ADSP_SENSORPD_NAME, |
| .pdrnb.notifier_call = |
| fastrpc_pdr_notifier_cb, |
| .cid = ADSP_DOMAIN_ID, |
| } |
| }, |
| .cpuinfo_todsp = FASTRPC_CPUINFO_DEFAULT, |
| .cpuinfo_status = false, |
| }, |
| { |
| .name = "mdsprpc-smd", |
| .subsys = "modem", |
| .spd = { |
| { |
| .cid = MDSP_DOMAIN_ID, |
| } |
| }, |
| .cpuinfo_todsp = FASTRPC_CPUINFO_DEFAULT, |
| .cpuinfo_status = false, |
| }, |
| { |
| .name = "sdsprpc-smd", |
| .subsys = "slpi", |
| .spd = { |
| { |
| .servloc_name = |
| SENSORS_PDR_SLPI_SERVICE_LOCATION_CLIENT_NAME, |
| .spdname = SLPI_SENSORPD_NAME, |
| .pdrnb.notifier_call = |
| fastrpc_pdr_notifier_cb, |
| .cid = SDSP_DOMAIN_ID, |
| } |
| }, |
| .cpuinfo_todsp = FASTRPC_CPUINFO_DEFAULT, |
| .cpuinfo_status = false, |
| }, |
| { |
| .name = "cdsprpc-smd", |
| .subsys = "cdsp", |
| .spd = { |
| { |
| .cid = CDSP_DOMAIN_ID, |
| } |
| }, |
| .cpuinfo_todsp = FASTRPC_CPUINFO_EARLY_WAKEUP, |
| .cpuinfo_status = false, |
| }, |
| }; |
| |
| static int hlosvm[1] = {VMID_HLOS}; |
| static int hlosvmperm[1] = {PERM_READ | PERM_WRITE | PERM_EXEC}; |
| |
| static void fastrpc_pm_awake(struct fastrpc_file *fl, int channel_type); |
| |
| static inline int64_t getnstimediff(struct timespec64 *start) |
| { |
| int64_t ns; |
| struct timespec64 ts, b; |
| |
| ktime_get_real_ts64(&ts); |
| b = timespec64_sub(ts, *start); |
| ns = timespec64_to_ns(&b); |
| return ns; |
| } |
| |
| static inline int64_t *getperfcounter(struct fastrpc_file *fl, int key) |
| { |
| int err = 0; |
| int64_t *val = NULL; |
| struct fastrpc_perf *perf = NULL, *fperf = NULL; |
| struct hlist_node *n = NULL; |
| |
| VERIFY(err, !IS_ERR_OR_NULL(fl)); |
| if (err) |
| goto bail; |
| |
| mutex_lock(&fl->perf_mutex); |
| hlist_for_each_entry_safe(perf, n, &fl->perf, hn) { |
| if (perf->tid == current->pid) { |
| fperf = perf; |
| break; |
| } |
| } |
| |
| if (IS_ERR_OR_NULL(fperf)) { |
| fperf = kzalloc(sizeof(*fperf), GFP_KERNEL); |
| |
| VERIFY(err, !IS_ERR_OR_NULL(fperf)); |
| if (err) { |
| mutex_unlock(&fl->perf_mutex); |
| kfree(fperf); |
| goto bail; |
| } |
| |
| fperf->tid = current->pid; |
| hlist_add_head(&fperf->hn, &fl->perf); |
| } |
| |
| val = ((int64_t *)fperf) + key; |
| mutex_unlock(&fl->perf_mutex); |
| bail: |
| return val; |
| } |
| |
| static inline int poll_on_early_response(struct smq_invoke_ctx *ctx) |
| { |
| int ii, jj, err = -EIO; |
| uint32_t sc = ctx->sc; |
| struct smq_invoke_buf *list; |
| struct smq_phy_page *pages; |
| uint64_t *fdlist; |
| uint32_t *crclist, *poll; |
| unsigned int inbufs, outbufs, handles; |
| |
| /* calculate poll memory location */ |
| inbufs = REMOTE_SCALARS_INBUFS(sc); |
| outbufs = REMOTE_SCALARS_OUTBUFS(sc); |
| handles = REMOTE_SCALARS_INHANDLES(sc) + REMOTE_SCALARS_OUTHANDLES(sc); |
| list = smq_invoke_buf_start(ctx->rpra, sc); |
| pages = smq_phy_page_start(sc, list); |
| fdlist = (uint64_t *)(pages + inbufs + outbufs + handles); |
| crclist = (uint32_t *)(fdlist + M_FDLIST); |
| poll = (uint32_t *)(crclist + M_CRCLIST); |
| |
| /* |
| * poll on memory for actual completion after receiving |
| * early response from DSP. Return failure on timeout. |
| */ |
| preempt_disable(); |
| for (ii = 0, jj = 0; ii < FASTRPC_POLL_TIME; ii++, jj++) { |
| if (*poll == FASTRPC_EARLY_WAKEUP_POLL) { |
| err = 0; |
| break; |
| } |
| if (jj == FASTRPC_POLL_TIME_WITHOUT_PREEMPT) { |
| /* limit preempt disable time with no rescheduling */ |
| preempt_enable(); |
| mem_barrier(); |
| preempt_disable(); |
| jj = 0; |
| } |
| udelay(1); |
| } |
| preempt_enable_no_resched(); |
| return err; |
| } |
| |
| static void fastrpc_buf_free(struct fastrpc_buf *buf, int cache) |
| { |
| struct fastrpc_file *fl = buf == NULL ? NULL : buf->fl; |
| int vmid; |
| |
| if (!fl) |
| return; |
| if (cache && buf->size < MAX_CACHE_BUF_SIZE) { |
| spin_lock(&fl->hlock); |
| hlist_add_head(&buf->hn, &fl->cached_bufs); |
| spin_unlock(&fl->hlock); |
| return; |
| } |
| if (buf->remote) { |
| spin_lock(&fl->hlock); |
| hlist_del_init(&buf->hn_rem); |
| spin_unlock(&fl->hlock); |
| buf->remote = 0; |
| buf->raddr = 0; |
| } |
| if (!IS_ERR_OR_NULL(buf->virt)) { |
| int destVM[1] = {VMID_HLOS}; |
| int destVMperm[1] = {PERM_READ | PERM_WRITE | PERM_EXEC}; |
| |
| if (fl->sctx->smmu.cb) |
| buf->phys &= ~((uint64_t)fl->sctx->smmu.cb << 32); |
| vmid = fl->apps->channel[fl->cid].vmid; |
| if (vmid) { |
| int srcVM[2] = {VMID_HLOS, vmid}; |
| |
| hyp_assign_phys(buf->phys, buf_page_size(buf->size), |
| srcVM, 2, destVM, destVMperm, 1); |
| } |
| trace_fastrpc_dma_free(fl->cid, buf->phys, buf->size); |
| dma_free_attrs(fl->sctx->smmu.dev, buf->size, buf->virt, |
| buf->phys, buf->dma_attr); |
| } |
| kfree(buf); |
| } |
| |
| static void fastrpc_cached_buf_list_free(struct fastrpc_file *fl) |
| { |
| struct fastrpc_buf *buf, *free; |
| |
| do { |
| struct hlist_node *n; |
| |
| free = NULL; |
| spin_lock(&fl->hlock); |
| hlist_for_each_entry_safe(buf, n, &fl->cached_bufs, hn) { |
| hlist_del_init(&buf->hn); |
| free = buf; |
| break; |
| } |
| spin_unlock(&fl->hlock); |
| if (free) |
| fastrpc_buf_free(free, 0); |
| } while (free); |
| } |
| |
| static void fastrpc_remote_buf_list_free(struct fastrpc_file *fl) |
| { |
| struct fastrpc_buf *buf, *free; |
| |
| do { |
| struct hlist_node *n; |
| |
| free = NULL; |
| spin_lock(&fl->hlock); |
| hlist_for_each_entry_safe(buf, n, &fl->remote_bufs, hn_rem) { |
| free = buf; |
| break; |
| } |
| spin_unlock(&fl->hlock); |
| if (free) |
| fastrpc_buf_free(free, 0); |
| } while (free); |
| } |
| |
| static void fastrpc_mmap_add(struct fastrpc_mmap *map) |
| { |
| if (map->flags == ADSP_MMAP_HEAP_ADDR || |
| map->flags == ADSP_MMAP_REMOTE_HEAP_ADDR) { |
| struct fastrpc_apps *me = &gfa; |
| |
| spin_lock(&me->hlock); |
| hlist_add_head(&map->hn, &me->maps); |
| spin_unlock(&me->hlock); |
| } else { |
| struct fastrpc_file *fl = map->fl; |
| |
| hlist_add_head(&map->hn, &fl->maps); |
| } |
| } |
| |
| static int fastrpc_mmap_find(struct fastrpc_file *fl, int fd, |
| uintptr_t va, size_t len, int mflags, int refs, |
| struct fastrpc_mmap **ppmap) |
| { |
| struct fastrpc_apps *me = &gfa; |
| struct fastrpc_mmap *match = NULL, *map = NULL; |
| struct hlist_node *n; |
| |
| if ((va + len) < va) |
| return -EOVERFLOW; |
| if (mflags == ADSP_MMAP_HEAP_ADDR || |
| mflags == ADSP_MMAP_REMOTE_HEAP_ADDR) { |
| spin_lock(&me->hlock); |
| hlist_for_each_entry_safe(map, n, &me->maps, hn) { |
| if (va >= map->va && |
| va + len <= map->va + map->len && |
| map->fd == fd) { |
| if (refs) { |
| if (map->refs + 1 == INT_MAX) { |
| spin_unlock(&me->hlock); |
| return -ETOOMANYREFS; |
| } |
| map->refs++; |
| } |
| match = map; |
| break; |
| } |
| } |
| spin_unlock(&me->hlock); |
| } else { |
| hlist_for_each_entry_safe(map, n, &fl->maps, hn) { |
| if (va >= map->va && |
| va + len <= map->va + map->len && |
| map->fd == fd) { |
| if (refs) { |
| if (map->refs + 1 == INT_MAX) |
| return -ETOOMANYREFS; |
| map->refs++; |
| } |
| match = map; |
| break; |
| } |
| } |
| } |
| if (match) { |
| *ppmap = match; |
| return 0; |
| } |
| return -ENOTTY; |
| } |
| |
| static int dma_alloc_memory(dma_addr_t *region_phys, void **vaddr, size_t size, |
| unsigned long dma_attr) |
| { |
| struct fastrpc_apps *me = &gfa; |
| |
| if (me->dev == NULL) { |
| pr_err("device adsprpc-mem is not initialized\n"); |
| return -ENODEV; |
| } |
| *vaddr = dma_alloc_attrs(me->dev, size, region_phys, |
| GFP_KERNEL, dma_attr); |
| if (IS_ERR_OR_NULL(*vaddr)) { |
| pr_err("adsprpc: %s: %s: dma_alloc_attrs failed for size 0x%zx, returned %pK\n", |
| current->comm, __func__, size, (*vaddr)); |
| return -ENOMEM; |
| } |
| return 0; |
| } |
| |
| static int fastrpc_mmap_remove(struct fastrpc_file *fl, uintptr_t va, |
| size_t len, struct fastrpc_mmap **ppmap) |
| { |
| struct fastrpc_mmap *match = NULL, *map; |
| struct hlist_node *n; |
| struct fastrpc_apps *me = &gfa; |
| |
| spin_lock(&me->hlock); |
| hlist_for_each_entry_safe(map, n, &me->maps, hn) { |
| if (map->raddr == va && |
| map->raddr + map->len == va + len && |
| map->refs == 1) { |
| match = map; |
| hlist_del_init(&map->hn); |
| break; |
| } |
| } |
| spin_unlock(&me->hlock); |
| if (match) { |
| *ppmap = match; |
| return 0; |
| } |
| hlist_for_each_entry_safe(map, n, &fl->maps, hn) { |
| if (map->raddr == va && |
| map->raddr + map->len == va + len && |
| map->refs == 1) { |
| match = map; |
| hlist_del_init(&map->hn); |
| break; |
| } |
| } |
| if (match) { |
| *ppmap = match; |
| return 0; |
| } |
| return -ENOTTY; |
| } |
| |
| static void fastrpc_mmap_free(struct fastrpc_mmap *map, uint32_t flags) |
| { |
| struct fastrpc_apps *me = &gfa; |
| struct fastrpc_file *fl; |
| int vmid; |
| struct fastrpc_session_ctx *sess; |
| |
| if (!map) |
| return; |
| fl = map->fl; |
| if (map->flags == ADSP_MMAP_HEAP_ADDR || |
| map->flags == ADSP_MMAP_REMOTE_HEAP_ADDR) { |
| map->refs--; |
| if (!map->refs) |
| hlist_del_init(&map->hn); |
| if (map->refs > 0) |
| return; |
| } else { |
| map->refs--; |
| if (!map->refs) |
| hlist_del_init(&map->hn); |
| if (map->refs > 0 && !flags) |
| return; |
| } |
| if (map->flags == ADSP_MMAP_HEAP_ADDR || |
| map->flags == ADSP_MMAP_REMOTE_HEAP_ADDR) { |
| |
| if (me->dev == NULL) { |
| pr_err("adsprpc: %s: %s: failed to free remote heap allocation\n", |
| current->comm, __func__); |
| return; |
| } |
| trace_fastrpc_dma_free(-1, map->phys, map->size); |
| if (map->phys) { |
| dma_free_attrs(me->dev, map->size, (void *)map->va, |
| (dma_addr_t)map->phys, (unsigned long)map->attr); |
| } |
| } else if (map->flags == FASTRPC_DMAHANDLE_NOMAP) { |
| trace_fastrpc_dma_unmap(fl->cid, map->phys, map->size); |
| if (!IS_ERR_OR_NULL(map->table)) |
| dma_buf_unmap_attachment(map->attach, map->table, |
| DMA_BIDIRECTIONAL); |
| if (!IS_ERR_OR_NULL(map->attach)) |
| dma_buf_detach(map->buf, map->attach); |
| if (!IS_ERR_OR_NULL(map->buf)) |
| dma_buf_put(map->buf); |
| } else { |
| int destVM[1] = {VMID_HLOS}; |
| int destVMperm[1] = {PERM_READ | PERM_WRITE | PERM_EXEC}; |
| |
| if (map->secure) |
| sess = fl->secsctx; |
| else |
| sess = fl->sctx; |
| |
| vmid = fl->apps->channel[fl->cid].vmid; |
| if (vmid && map->phys) { |
| int srcVM[2] = {VMID_HLOS, vmid}; |
| |
| hyp_assign_phys(map->phys, buf_page_size(map->size), |
| srcVM, 2, destVM, destVMperm, 1); |
| } |
| trace_fastrpc_dma_unmap(fl->cid, map->phys, map->size); |
| if (!IS_ERR_OR_NULL(map->table)) |
| dma_buf_unmap_attachment(map->attach, map->table, |
| DMA_BIDIRECTIONAL); |
| if (!IS_ERR_OR_NULL(map->attach)) |
| dma_buf_detach(map->buf, map->attach); |
| if (!IS_ERR_OR_NULL(map->buf)) |
| dma_buf_put(map->buf); |
| } |
| kfree(map); |
| } |
| |
| static int fastrpc_session_alloc(struct fastrpc_channel_ctx *chan, int secure, |
| struct fastrpc_session_ctx **session); |
| |
| static int fastrpc_mmap_create(struct fastrpc_file *fl, int fd, |
| unsigned int attr, uintptr_t va, size_t len, int mflags, |
| struct fastrpc_mmap **ppmap) |
| { |
| struct fastrpc_apps *me = &gfa; |
| struct fastrpc_session_ctx *sess; |
| struct fastrpc_apps *apps = fl->apps; |
| int cid = fl->cid; |
| struct fastrpc_channel_ctx *chan = NULL; |
| struct fastrpc_mmap *map = NULL; |
| dma_addr_t region_phys = 0; |
| void *region_vaddr = NULL; |
| unsigned long flags; |
| int err = 0, vmid, sgl_index = 0; |
| struct scatterlist *sgl = NULL; |
| |
| VERIFY(err, cid >= ADSP_DOMAIN_ID && cid < NUM_CHANNELS); |
| if (err) |
| goto bail; |
| chan = &apps->channel[cid]; |
| |
| if (!fastrpc_mmap_find(fl, fd, va, len, mflags, 1, ppmap)) |
| return 0; |
| map = kzalloc(sizeof(*map), GFP_KERNEL); |
| VERIFY(err, !IS_ERR_OR_NULL(map)); |
| if (err) |
| goto bail; |
| INIT_HLIST_NODE(&map->hn); |
| map->flags = mflags; |
| map->refs = 1; |
| map->fl = fl; |
| map->fd = fd; |
| map->attr = attr; |
| if (mflags == ADSP_MMAP_HEAP_ADDR || |
| mflags == ADSP_MMAP_REMOTE_HEAP_ADDR) { |
| map->apps = me; |
| map->fl = NULL; |
| map->attr |= DMA_ATTR_SKIP_ZEROING | DMA_ATTR_NO_KERNEL_MAPPING; |
| VERIFY(err, !dma_alloc_memory(®ion_phys, ®ion_vaddr, |
| len, (unsigned long) map->attr)); |
| if (err) |
| goto bail; |
| trace_fastrpc_dma_alloc(fl->cid, (uint64_t)region_phys, len, |
| (unsigned long)map->attr, mflags); |
| map->phys = (uintptr_t)region_phys; |
| map->size = len; |
| map->va = (uintptr_t)region_vaddr; |
| } else if (mflags == FASTRPC_DMAHANDLE_NOMAP) { |
| VERIFY(err, !IS_ERR_OR_NULL(map->buf = dma_buf_get(fd))); |
| if (err) |
| goto bail; |
| VERIFY(err, !dma_buf_get_flags(map->buf, &flags)); |
| if (err) |
| goto bail; |
| map->secure = flags & ION_FLAG_SECURE; |
| map->uncached = 1; |
| map->va = 0; |
| map->phys = 0; |
| |
| VERIFY(err, !IS_ERR_OR_NULL(map->attach = |
| dma_buf_attach(map->buf, me->dev))); |
| if (err) |
| goto bail; |
| |
| map->attach->dma_map_attrs |= DMA_ATTR_SKIP_CPU_SYNC; |
| VERIFY(err, !IS_ERR_OR_NULL(map->table = |
| dma_buf_map_attachment(map->attach, |
| DMA_BIDIRECTIONAL))); |
| if (err) |
| goto bail; |
| VERIFY(err, map->table->nents == 1); |
| if (err) |
| goto bail; |
| map->phys = sg_dma_address(map->table->sgl); |
| map->size = len; |
| trace_fastrpc_dma_map(fl->cid, fd, map->phys, map->size, |
| len, mflags, map->attach->dma_map_attrs); |
| } else { |
| if (map->attr && (map->attr & FASTRPC_ATTR_KEEP_MAP)) { |
| pr_info("adsprpc: %s: buffer mapped with persist attr 0x%x\n", |
| __func__, (unsigned int)map->attr); |
| map->refs = 2; |
| } |
| VERIFY(err, !IS_ERR_OR_NULL(map->buf = dma_buf_get(fd))); |
| if (err) |
| goto bail; |
| VERIFY(err, !dma_buf_get_flags(map->buf, &flags)); |
| if (err) |
| goto bail; |
| |
| map->secure = flags & ION_FLAG_SECURE; |
| if (map->secure) { |
| if (!fl->secsctx) |
| err = fastrpc_session_alloc(chan, 1, |
| &fl->secsctx); |
| if (err) |
| goto bail; |
| } |
| if (map->secure) |
| sess = fl->secsctx; |
| else |
| sess = fl->sctx; |
| |
| VERIFY(err, !IS_ERR_OR_NULL(sess)); |
| if (err) |
| goto bail; |
| |
| map->uncached = !(flags & ION_FLAG_CACHED); |
| if (map->attr & FASTRPC_ATTR_NOVA && !sess->smmu.coherent) |
| map->uncached = 1; |
| |
| VERIFY(err, !IS_ERR_OR_NULL(map->attach = |
| dma_buf_attach(map->buf, sess->smmu.dev))); |
| if (err) |
| goto bail; |
| |
| map->attach->dma_map_attrs |= DMA_ATTR_DELAYED_UNMAP; |
| map->attach->dma_map_attrs |= DMA_ATTR_EXEC_MAPPING; |
| if (map->attr & FASTRPC_ATTR_NON_COHERENT || |
| (sess->smmu.coherent && map->uncached)) |
| map->attach->dma_map_attrs |= |
| DMA_ATTR_FORCE_NON_COHERENT | |
| DMA_ATTR_SKIP_CPU_SYNC; |
| else if (map->attr & FASTRPC_ATTR_COHERENT) |
| map->attach->dma_map_attrs |= DMA_ATTR_FORCE_COHERENT; |
| /* |
| * Skip CPU sync if IO Cohernecy is not supported |
| * as we flush later |
| */ |
| else if (!sess->smmu.coherent) |
| map->attach->dma_map_attrs |= DMA_ATTR_SKIP_CPU_SYNC; |
| |
| VERIFY(err, !IS_ERR_OR_NULL(map->table = |
| dma_buf_map_attachment(map->attach, |
| DMA_BIDIRECTIONAL))); |
| if (err) |
| goto bail; |
| if (!sess->smmu.enabled) { |
| VERIFY(err, map->table->nents == 1); |
| if (err) |
| goto bail; |
| } |
| map->phys = sg_dma_address(map->table->sgl); |
| |
| if (sess->smmu.cb) { |
| map->phys += ((uint64_t)sess->smmu.cb << 32); |
| for_each_sg(map->table->sgl, sgl, map->table->nents, |
| sgl_index) |
| map->size += sg_dma_len(sgl); |
| } else { |
| map->size = buf_page_size(len); |
| } |
| trace_fastrpc_dma_map(fl->cid, fd, map->phys, map->size, |
| len, mflags, map->attach->dma_map_attrs); |
| if (map->size < len) { |
| err = -EFAULT; |
| goto bail; |
| } |
| |
| VERIFY(err, map->size >= len && map->size < me->max_size_limit); |
| if (err) { |
| err = -EFAULT; |
| pr_err("adsprpc: %s: invalid map size 0x%zx len 0x%zx\n", |
| __func__, map->size, len); |
| goto bail; |
| } |
| |
| vmid = fl->apps->channel[fl->cid].vmid; |
| if (!sess->smmu.enabled && !vmid) { |
| VERIFY(err, map->phys >= me->range.addr && |
| map->phys + map->size <= |
| me->range.addr + me->range.size); |
| if (err) { |
| pr_err("adsprpc: %s: phys addr 0x%llx (size 0x%zx) out of CMA heap range\n", |
| __func__, map->phys, map->size); |
| goto bail; |
| } |
| } |
| if (vmid) { |
| int srcVM[1] = {VMID_HLOS}; |
| int destVM[2] = {VMID_HLOS, vmid}; |
| int destVMperm[2] = {PERM_READ | PERM_WRITE, |
| PERM_READ | PERM_WRITE | PERM_EXEC}; |
| |
| err = hyp_assign_phys(map->phys, |
| buf_page_size(map->size), |
| srcVM, 1, destVM, destVMperm, 2); |
| if (err) |
| goto bail; |
| } |
| map->va = va; |
| } |
| map->len = len; |
| |
| fastrpc_mmap_add(map); |
| *ppmap = map; |
| |
| bail: |
| if (err && map) |
| fastrpc_mmap_free(map, 0); |
| return err; |
| } |
| |
| static int fastrpc_buf_alloc(struct fastrpc_file *fl, size_t size, |
| unsigned long dma_attr, uint32_t rflags, |
| int remote, struct fastrpc_buf **obuf) |
| { |
| int err = 0, vmid; |
| struct fastrpc_apps *me = &gfa; |
| struct fastrpc_buf *buf = NULL, *fr = NULL; |
| struct hlist_node *n; |
| |
| VERIFY(err, size > 0 && size < me->max_size_limit); |
| if (err) { |
| err = -EFAULT; |
| pr_err("adsprpc: %s: invalid allocation size 0x%zx\n", |
| __func__, size); |
| goto bail; |
| } |
| |
| if (!remote) { |
| /* find the smallest buffer that fits in the cache */ |
| spin_lock(&fl->hlock); |
| hlist_for_each_entry_safe(buf, n, &fl->cached_bufs, hn) { |
| if (buf->size >= size && (!fr || fr->size > buf->size)) |
| fr = buf; |
| } |
| if (fr) |
| hlist_del_init(&fr->hn); |
| spin_unlock(&fl->hlock); |
| if (fr) { |
| *obuf = fr; |
| return 0; |
| } |
| } |
| |
| buf = NULL; |
| VERIFY(err, NULL != (buf = kzalloc(sizeof(*buf), GFP_KERNEL))); |
| if (err) |
| goto bail; |
| INIT_HLIST_NODE(&buf->hn); |
| buf->fl = fl; |
| buf->virt = NULL; |
| buf->phys = 0; |
| buf->size = size; |
| buf->dma_attr = dma_attr; |
| buf->flags = rflags; |
| buf->raddr = 0; |
| buf->remote = 0; |
| buf->virt = dma_alloc_attrs(fl->sctx->smmu.dev, buf->size, |
| (dma_addr_t *)&buf->phys, |
| GFP_KERNEL, buf->dma_attr); |
| if (IS_ERR_OR_NULL(buf->virt)) { |
| /* free cache and retry */ |
| fastrpc_cached_buf_list_free(fl); |
| buf->virt = dma_alloc_attrs(fl->sctx->smmu.dev, buf->size, |
| (dma_addr_t *)&buf->phys, GFP_KERNEL, |
| buf->dma_attr); |
| VERIFY(err, !IS_ERR_OR_NULL(buf->virt)); |
| } |
| if (err) { |
| err = ENOMEM; |
| pr_err("adsprpc: %s: %s: dma_alloc_attrs failed for size 0x%zx, returned %pK\n", |
| current->comm, __func__, size, buf->virt); |
| goto bail; |
| } |
| if (fl->sctx->smmu.cb) |
| buf->phys += ((uint64_t)fl->sctx->smmu.cb << 32); |
| trace_fastrpc_dma_alloc(fl->cid, buf->phys, size, |
| dma_attr, (int)rflags); |
| |
| vmid = fl->apps->channel[fl->cid].vmid; |
| if (vmid) { |
| int srcVM[1] = {VMID_HLOS}; |
| int destVM[2] = {VMID_HLOS, vmid}; |
| int destVMperm[2] = {PERM_READ | PERM_WRITE, |
| PERM_READ | PERM_WRITE | PERM_EXEC}; |
| |
| err = hyp_assign_phys(buf->phys, buf_page_size(size), |
| srcVM, 1, destVM, destVMperm, 2); |
| if (err) |
| goto bail; |
| } |
| |
| if (remote) { |
| INIT_HLIST_NODE(&buf->hn_rem); |
| spin_lock(&fl->hlock); |
| hlist_add_head(&buf->hn_rem, &fl->remote_bufs); |
| spin_unlock(&fl->hlock); |
| buf->remote = remote; |
| } |
| *obuf = buf; |
| bail: |
| if (err && buf) |
| fastrpc_buf_free(buf, 0); |
| return err; |
| } |
| |
| |
| static int context_restore_interrupted(struct fastrpc_file *fl, |
| struct fastrpc_ioctl_invoke_crc *inv, |
| struct smq_invoke_ctx **po) |
| { |
| int err = 0; |
| struct smq_invoke_ctx *ctx = NULL, *ictx = NULL; |
| struct hlist_node *n; |
| struct fastrpc_ioctl_invoke *invoke = &inv->inv; |
| |
| spin_lock(&fl->hlock); |
| hlist_for_each_entry_safe(ictx, n, &fl->clst.interrupted, hn) { |
| if (ictx->pid == current->pid) { |
| if (invoke->sc != ictx->sc || ictx->fl != fl) |
| err = -1; |
| else { |
| ctx = ictx; |
| hlist_del_init(&ctx->hn); |
| hlist_add_head(&ctx->hn, &fl->clst.pending); |
| } |
| break; |
| } |
| } |
| spin_unlock(&fl->hlock); |
| if (ctx) |
| *po = ctx; |
| return err; |
| } |
| |
| #define CMP(aa, bb) ((aa) == (bb) ? 0 : (aa) < (bb) ? -1 : 1) |
| static int overlap_ptr_cmp(const void *a, const void *b) |
| { |
| struct overlap *pa = *((struct overlap **)a); |
| struct overlap *pb = *((struct overlap **)b); |
| /* sort with lowest starting buffer first */ |
| int st = CMP(pa->start, pb->start); |
| /* sort with highest ending buffer first */ |
| int ed = CMP(pb->end, pa->end); |
| return st == 0 ? ed : st; |
| } |
| |
| static int context_build_overlap(struct smq_invoke_ctx *ctx) |
| { |
| int i, err = 0; |
| remote_arg_t *lpra = ctx->lpra; |
| int inbufs = REMOTE_SCALARS_INBUFS(ctx->sc); |
| int outbufs = REMOTE_SCALARS_OUTBUFS(ctx->sc); |
| int nbufs = inbufs + outbufs; |
| struct overlap max; |
| |
| for (i = 0; i < nbufs; ++i) { |
| ctx->overs[i].start = (uintptr_t)lpra[i].buf.pv; |
| ctx->overs[i].end = ctx->overs[i].start + lpra[i].buf.len; |
| if (lpra[i].buf.len) { |
| VERIFY(err, ctx->overs[i].end > ctx->overs[i].start); |
| if (err) |
| goto bail; |
| } |
| ctx->overs[i].raix = i; |
| ctx->overps[i] = &ctx->overs[i]; |
| } |
| sort(ctx->overps, nbufs, sizeof(*ctx->overps), overlap_ptr_cmp, NULL); |
| max.start = 0; |
| max.end = 0; |
| for (i = 0; i < nbufs; ++i) { |
| if (ctx->overps[i]->start < max.end) { |
| ctx->overps[i]->mstart = max.end; |
| ctx->overps[i]->mend = ctx->overps[i]->end; |
| ctx->overps[i]->offset = max.end - |
| ctx->overps[i]->start; |
| if (ctx->overps[i]->end > max.end) { |
| max.end = ctx->overps[i]->end; |
| } else { |
| if ((max.raix < inbufs && |
| ctx->overps[i]->raix + 1 > inbufs) || |
| (ctx->overps[i]->raix < inbufs && |
| max.raix + 1 > inbufs)) |
| ctx->overps[i]->do_cmo = 1; |
| ctx->overps[i]->mend = 0; |
| ctx->overps[i]->mstart = 0; |
| } |
| } else { |
| ctx->overps[i]->mend = ctx->overps[i]->end; |
| ctx->overps[i]->mstart = ctx->overps[i]->start; |
| ctx->overps[i]->offset = 0; |
| max = *ctx->overps[i]; |
| } |
| } |
| bail: |
| return err; |
| } |
| |
| #define K_COPY_FROM_USER(err, kernel, dst, src, size) \ |
| do {\ |
| if (!(kernel))\ |
| VERIFY(err, 0 == copy_from_user((dst),\ |
| (void const __user *)(src),\ |
| (size)));\ |
| else\ |
| memmove((dst), (src), (size));\ |
| } while (0) |
| |
| #define K_COPY_TO_USER(err, kernel, dst, src, size) \ |
| do {\ |
| if (!(kernel))\ |
| VERIFY(err, 0 == copy_to_user((void __user *)(dst),\ |
| (src), (size)));\ |
| else\ |
| memmove((dst), (src), (size));\ |
| } while (0) |
| |
| |
| static void context_free(struct smq_invoke_ctx *ctx); |
| |
| static int context_alloc(struct fastrpc_file *fl, uint32_t kernel, |
| struct fastrpc_ioctl_invoke_crc *invokefd, |
| struct smq_invoke_ctx **po) |
| { |
| struct fastrpc_apps *me = &gfa; |
| int err = 0, bufs, ii, size = 0, cid = -1; |
| struct smq_invoke_ctx *ctx = NULL; |
| struct fastrpc_ctx_lst *clst = &fl->clst; |
| struct fastrpc_ioctl_invoke *invoke = &invokefd->inv; |
| struct fastrpc_channel_ctx *chan = 0; |
| unsigned long irq_flags = 0; |
| |
| bufs = REMOTE_SCALARS_LENGTH(invoke->sc); |
| size = bufs * sizeof(*ctx->lpra) + bufs * sizeof(*ctx->maps) + |
| sizeof(*ctx->fds) * (bufs) + |
| sizeof(*ctx->attrs) * (bufs) + |
| sizeof(*ctx->overs) * (bufs) + |
| sizeof(*ctx->overps) * (bufs); |
| |
| VERIFY(err, NULL != (ctx = kzalloc(sizeof(*ctx) + size, GFP_KERNEL))); |
| if (err) |
| goto bail; |
| |
| INIT_HLIST_NODE(&ctx->hn); |
| hlist_add_fake(&ctx->hn); |
| ctx->fl = fl; |
| ctx->maps = (struct fastrpc_mmap **)(&ctx[1]); |
| ctx->lpra = (remote_arg_t *)(&ctx->maps[bufs]); |
| ctx->fds = (int *)(&ctx->lpra[bufs]); |
| ctx->attrs = (unsigned int *)(&ctx->fds[bufs]); |
| ctx->overs = (struct overlap *)(&ctx->attrs[bufs]); |
| ctx->overps = (struct overlap **)(&ctx->overs[bufs]); |
| |
| K_COPY_FROM_USER(err, kernel, (void *)ctx->lpra, invoke->pra, |
| bufs * sizeof(*ctx->lpra)); |
| if (err) |
| goto bail; |
| |
| if (invokefd->fds) { |
| K_COPY_FROM_USER(err, kernel, ctx->fds, invokefd->fds, |
| bufs * sizeof(*ctx->fds)); |
| if (err) |
| goto bail; |
| } else { |
| ctx->fds = NULL; |
| } |
| if (invokefd->attrs) { |
| K_COPY_FROM_USER(err, kernel, ctx->attrs, invokefd->attrs, |
| bufs * sizeof(*ctx->attrs)); |
| if (err) |
| goto bail; |
| } |
| ctx->crc = (uint32_t *)invokefd->crc; |
| ctx->handle = invoke->handle; |
| ctx->sc = invoke->sc; |
| if (bufs) { |
| VERIFY(err, 0 == context_build_overlap(ctx)); |
| if (err) |
| goto bail; |
| } |
| ctx->retval = 0xDECAF; |
| ctx->pid = current->pid; |
| ctx->tgid = fl->tgid; |
| init_completion(&ctx->work); |
| ctx->magic = FASTRPC_CTX_MAGIC; |
| ctx->rspFlags = NORMAL_RESPONSE; |
| ctx->isWorkDone = false; |
| |
| spin_lock(&fl->hlock); |
| hlist_add_head(&ctx->hn, &clst->pending); |
| cid = (fl->cid >= ADSP_DOMAIN_ID && fl->cid < NUM_CHANNELS) |
| ? fl->cid : 0; |
| chan = &me->channel[cid]; |
| spin_unlock(&fl->hlock); |
| |
| spin_lock_irqsave(&chan->ctxlock, irq_flags); |
| me->jobid[cid]++; |
| for (ii = 0; ii < FASTRPC_CTX_MAX; ii++) { |
| if (!chan->ctxtable[ii]) { |
| chan->ctxtable[ii] = ctx; |
| ctx->ctxid = (me->jobid[cid] << 12) | (ii << 4); |
| break; |
| } |
| } |
| spin_unlock_irqrestore(&chan->ctxlock, irq_flags); |
| VERIFY(err, ii < FASTRPC_CTX_MAX); |
| if (err) { |
| pr_err("adsprpc: out of context memory\n"); |
| goto bail; |
| } |
| trace_fastrpc_context_alloc((uint64_t)ctx, |
| ctx->ctxid | fl->pd, ctx->handle, ctx->sc); |
| *po = ctx; |
| bail: |
| if (ctx && err) |
| context_free(ctx); |
| return err; |
| } |
| |
| static void context_save_interrupted(struct smq_invoke_ctx *ctx) |
| { |
| struct fastrpc_ctx_lst *clst = &ctx->fl->clst; |
| |
| spin_lock(&ctx->fl->hlock); |
| hlist_del_init(&ctx->hn); |
| hlist_add_head(&ctx->hn, &clst->interrupted); |
| spin_unlock(&ctx->fl->hlock); |
| } |
| |
| static void context_free(struct smq_invoke_ctx *ctx) |
| { |
| int i; |
| struct fastrpc_apps *me = &gfa; |
| int nbufs = REMOTE_SCALARS_INBUFS(ctx->sc) + |
| REMOTE_SCALARS_OUTBUFS(ctx->sc); |
| int cid = ctx->fl->cid; |
| struct fastrpc_channel_ctx *chan = &me->channel[cid]; |
| unsigned long irq_flags = 0; |
| |
| spin_lock_irqsave(&chan->ctxlock, irq_flags); |
| for (i = 0; i < FASTRPC_CTX_MAX; i++) { |
| if (chan->ctxtable[i] == ctx) { |
| chan->ctxtable[i] = NULL; |
| break; |
| } |
| } |
| spin_unlock_irqrestore(&chan->ctxlock, irq_flags); |
| |
| spin_lock(&ctx->fl->hlock); |
| hlist_del_init(&ctx->hn); |
| spin_unlock(&ctx->fl->hlock); |
| |
| mutex_lock(&ctx->fl->map_mutex); |
| for (i = 0; i < nbufs; ++i) |
| fastrpc_mmap_free(ctx->maps[i], 0); |
| mutex_unlock(&ctx->fl->map_mutex); |
| |
| fastrpc_buf_free(ctx->buf, 1); |
| kfree(ctx->lrpra); |
| ctx->lrpra = NULL; |
| ctx->magic = 0; |
| ctx->ctxid = 0; |
| |
| trace_fastrpc_context_free((uint64_t)ctx, |
| ctx->msg.invoke.header.ctx, ctx->handle, ctx->sc); |
| kfree(ctx); |
| } |
| |
| static void context_notify_user(struct smq_invoke_ctx *ctx, |
| int retval, uint32_t rspFlags, uint32_t earlyWakeTime) |
| { |
| fastrpc_pm_awake(ctx->fl, gcinfo[ctx->fl->cid].secure); |
| ctx->retval = retval; |
| switch (rspFlags) { |
| case NORMAL_RESPONSE: |
| /* normal response with return value */ |
| ctx->retval = retval; |
| ctx->isWorkDone = true; |
| break; |
| case USER_EARLY_SIGNAL: |
| /* user hint of approximate time of completion */ |
| ctx->earlyWakeTime = earlyWakeTime; |
| break; |
| case EARLY_RESPONSE: |
| /* rpc framework early response with return value */ |
| ctx->retval = retval; |
| break; |
| case COMPLETE_SIGNAL: |
| /* rpc framework signal to clear if pending on ctx */ |
| ctx->isWorkDone = true; |
| break; |
| default: |
| break; |
| } |
| ctx->rspFlags = (enum fastrpc_response_flags)rspFlags; |
| trace_fastrpc_context_complete(ctx->fl->cid, (uint64_t)ctx, retval, |
| ctx->msg.invoke.header.ctx, ctx->handle, ctx->sc); |
| complete(&ctx->work); |
| } |
| |
| static void fastrpc_notify_users(struct fastrpc_file *me) |
| { |
| struct smq_invoke_ctx *ictx; |
| struct hlist_node *n; |
| |
| spin_lock(&me->hlock); |
| hlist_for_each_entry_safe(ictx, n, &me->clst.pending, hn) { |
| ictx->isWorkDone = true; |
| trace_fastrpc_context_complete(me->cid, (uint64_t)ictx, |
| ictx->retval, ictx->msg.invoke.header.ctx, |
| ictx->handle, ictx->sc); |
| complete(&ictx->work); |
| } |
| hlist_for_each_entry_safe(ictx, n, &me->clst.interrupted, hn) { |
| ictx->isWorkDone = true; |
| trace_fastrpc_context_complete(me->cid, (uint64_t)ictx, |
| ictx->retval, ictx->msg.invoke.header.ctx, |
| ictx->handle, ictx->sc); |
| complete(&ictx->work); |
| } |
| spin_unlock(&me->hlock); |
| } |
| |
| |
| static void fastrpc_notify_users_staticpd_pdr(struct fastrpc_file *me) |
| { |
| struct smq_invoke_ctx *ictx; |
| struct hlist_node *n; |
| |
| spin_lock(&me->hlock); |
| hlist_for_each_entry_safe(ictx, n, &me->clst.pending, hn) { |
| if (ictx->msg.pid) { |
| ictx->isWorkDone = true; |
| trace_fastrpc_context_complete(me->cid, (uint64_t)ictx, |
| ictx->retval, ictx->msg.invoke.header.ctx, |
| ictx->handle, ictx->sc); |
| complete(&ictx->work); |
| } |
| } |
| hlist_for_each_entry_safe(ictx, n, &me->clst.interrupted, hn) { |
| if (ictx->msg.pid) { |
| ictx->isWorkDone = true; |
| trace_fastrpc_context_complete(me->cid, (uint64_t)ictx, |
| ictx->retval, ictx->msg.invoke.header.ctx, |
| ictx->handle, ictx->sc); |
| complete(&ictx->work); |
| } |
| } |
| spin_unlock(&me->hlock); |
| } |
| |
| |
| static void fastrpc_notify_drivers(struct fastrpc_apps *me, int cid) |
| { |
| struct fastrpc_file *fl; |
| struct hlist_node *n; |
| |
| spin_lock(&me->hlock); |
| hlist_for_each_entry_safe(fl, n, &me->drivers, hn) { |
| if (fl->cid == cid) |
| fastrpc_notify_users(fl); |
| } |
| spin_unlock(&me->hlock); |
| } |
| |
| static void fastrpc_notify_pdr_drivers(struct fastrpc_apps *me, |
| char *servloc_name) |
| { |
| struct fastrpc_file *fl; |
| struct hlist_node *n; |
| |
| spin_lock(&me->hlock); |
| hlist_for_each_entry_safe(fl, n, &me->drivers, hn) { |
| if (fl->servloc_name && !strcmp(servloc_name, fl->servloc_name)) |
| fastrpc_notify_users_staticpd_pdr(fl); |
| } |
| spin_unlock(&me->hlock); |
| } |
| |
| static void context_list_ctor(struct fastrpc_ctx_lst *me) |
| { |
| INIT_HLIST_HEAD(&me->interrupted); |
| INIT_HLIST_HEAD(&me->pending); |
| } |
| |
| static void fastrpc_context_list_dtor(struct fastrpc_file *fl) |
| { |
| struct fastrpc_ctx_lst *clst = &fl->clst; |
| struct smq_invoke_ctx *ictx = NULL, *ctxfree; |
| struct hlist_node *n; |
| |
| do { |
| ctxfree = NULL; |
| spin_lock(&fl->hlock); |
| hlist_for_each_entry_safe(ictx, n, &clst->interrupted, hn) { |
| hlist_del_init(&ictx->hn); |
| ctxfree = ictx; |
| break; |
| } |
| spin_unlock(&fl->hlock); |
| if (ctxfree) |
| context_free(ctxfree); |
| } while (ctxfree); |
| do { |
| ctxfree = NULL; |
| spin_lock(&fl->hlock); |
| hlist_for_each_entry_safe(ictx, n, &clst->pending, hn) { |
| hlist_del_init(&ictx->hn); |
| ctxfree = ictx; |
| break; |
| } |
| spin_unlock(&fl->hlock); |
| if (ctxfree) |
| context_free(ctxfree); |
| } while (ctxfree); |
| } |
| |
| static int fastrpc_file_free(struct fastrpc_file *fl); |
| static void fastrpc_file_list_dtor(struct fastrpc_apps *me) |
| { |
| struct fastrpc_file *fl, *free; |
| struct hlist_node *n; |
| |
| do { |
| free = NULL; |
| spin_lock(&me->hlock); |
| hlist_for_each_entry_safe(fl, n, &me->drivers, hn) { |
| hlist_del_init(&fl->hn); |
| free = fl; |
| break; |
| } |
| spin_unlock(&me->hlock); |
| if (free) |
| fastrpc_file_free(free); |
| } while (free); |
| } |
| |
| static int get_args(uint32_t kernel, struct smq_invoke_ctx *ctx) |
| { |
| remote_arg64_t *rpra, *lrpra; |
| remote_arg_t *lpra = ctx->lpra; |
| struct smq_invoke_buf *list; |
| struct smq_phy_page *pages, *ipage; |
| uint32_t sc = ctx->sc; |
| int inbufs = REMOTE_SCALARS_INBUFS(sc); |
| int outbufs = REMOTE_SCALARS_OUTBUFS(sc); |
| int handles, bufs = inbufs + outbufs; |
| uintptr_t args; |
| size_t rlen = 0, copylen = 0, metalen = 0, lrpralen = 0; |
| int i, oix; |
| int err = 0; |
| int mflags = 0; |
| uint64_t *fdlist; |
| uint32_t *crclist; |
| uint32_t earlyHint; |
| int64_t *perf_counter = NULL; |
| |
| if (ctx->fl->profile) |
| perf_counter = getperfcounter(ctx->fl, PERF_COUNT); |
| |
| /* calculate size of the metadata */ |
| rpra = NULL; |
| lrpra = NULL; |
| list = smq_invoke_buf_start(rpra, sc); |
| pages = smq_phy_page_start(sc, list); |
| ipage = pages; |
| |
| PERF(ctx->fl->profile, GET_COUNTER(perf_counter, PERF_MAP), |
| for (i = 0; i < bufs; ++i) { |
| uintptr_t buf = (uintptr_t)lpra[i].buf.pv; |
| size_t len = lpra[i].buf.len; |
| |
| mutex_lock(&ctx->fl->map_mutex); |
| if (ctx->fds && (ctx->fds[i] != -1)) |
| err = fastrpc_mmap_create(ctx->fl, ctx->fds[i], |
| ctx->attrs[i], buf, len, |
| mflags, &ctx->maps[i]); |
| mutex_unlock(&ctx->fl->map_mutex); |
| if (err) |
| goto bail; |
| ipage += 1; |
| } |
| PERF_END); |
| handles = REMOTE_SCALARS_INHANDLES(sc) + REMOTE_SCALARS_OUTHANDLES(sc); |
| mutex_lock(&ctx->fl->map_mutex); |
| for (i = bufs; i < bufs + handles; i++) { |
| int dmaflags = 0; |
| |
| if (ctx->attrs && (ctx->attrs[i] & FASTRPC_ATTR_NOMAP)) |
| dmaflags = FASTRPC_DMAHANDLE_NOMAP; |
| if (ctx->fds && (ctx->fds[i] != -1)) |
| err = fastrpc_mmap_create(ctx->fl, ctx->fds[i], |
| FASTRPC_ATTR_NOVA, 0, 0, dmaflags, |
| &ctx->maps[i]); |
| if (err) { |
| mutex_unlock(&ctx->fl->map_mutex); |
| goto bail; |
| } |
| ipage += 1; |
| } |
| mutex_unlock(&ctx->fl->map_mutex); |
| |
| /* metalen includes meta data, fds, crc and early wakeup hint */ |
| metalen = copylen = (size_t)&ipage[0] + (sizeof(uint64_t) * M_FDLIST) + |
| (sizeof(uint32_t) * M_CRCLIST) + sizeof(earlyHint); |
| |
| /* allocate new local rpra buffer */ |
| lrpralen = (size_t)&list[0]; |
| if (lrpralen) { |
| lrpra = kzalloc(lrpralen, GFP_KERNEL); |
| VERIFY(err, !IS_ERR_OR_NULL(lrpra)); |
| if (err) |
| goto bail; |
| } |
| ctx->lrpra = lrpra; |
| |
| /* calculate len required for copying */ |
| for (oix = 0; oix < inbufs + outbufs; ++oix) { |
| int i = ctx->overps[oix]->raix; |
| uintptr_t mstart, mend; |
| size_t len = lpra[i].buf.len; |
| |
| if (!len) |
| continue; |
| if (ctx->maps[i]) |
| continue; |
| if (ctx->overps[oix]->offset == 0) |
| copylen = ALIGN(copylen, BALIGN); |
| mstart = ctx->overps[oix]->mstart; |
| mend = ctx->overps[oix]->mend; |
| VERIFY(err, (mend - mstart) <= LONG_MAX); |
| if (err) |
| goto bail; |
| copylen += mend - mstart; |
| } |
| ctx->used = copylen; |
| |
| /* allocate new buffer */ |
| if (copylen) { |
| err = fastrpc_buf_alloc(ctx->fl, copylen, 0, 0, 0, &ctx->buf); |
| if (err) |
| goto bail; |
| } |
| if (ctx->buf->virt && metalen <= copylen) |
| memset(ctx->buf->virt, 0, metalen); |
| |
| /* copy metadata */ |
| rpra = ctx->buf->virt; |
| ctx->rpra = rpra; |
| list = smq_invoke_buf_start(rpra, sc); |
| pages = smq_phy_page_start(sc, list); |
| ipage = pages; |
| args = (uintptr_t)ctx->buf->virt + metalen; |
| for (i = 0; i < bufs + handles; ++i) { |
| if (lpra[i].buf.len) |
| list[i].num = 1; |
| else |
| list[i].num = 0; |
| list[i].pgidx = ipage - pages; |
| ipage++; |
| } |
| |
| /* map ion buffers */ |
| PERF(ctx->fl->profile, GET_COUNTER(perf_counter, PERF_MAP), |
| for (i = 0; rpra && i < inbufs + outbufs; ++i) { |
| struct fastrpc_mmap *map = ctx->maps[i]; |
| uint64_t buf = ptr_to_uint64(lpra[i].buf.pv); |
| size_t len = lpra[i].buf.len; |
| |
| rpra[i].buf.pv = 0; |
| rpra[i].buf.len = len; |
| if (!len) |
| continue; |
| if (map) { |
| struct vm_area_struct *vma; |
| uintptr_t offset; |
| uint64_t num = buf_num_pages(buf, len); |
| int idx = list[i].pgidx; |
| |
| if (map->attr & FASTRPC_ATTR_NOVA) { |
| offset = 0; |
| } else { |
| down_read(¤t->mm->mmap_sem); |
| VERIFY(err, NULL != (vma = find_vma(current->mm, |
| map->va))); |
| if (err) { |
| up_read(¤t->mm->mmap_sem); |
| goto bail; |
| } |
| offset = buf_page_start(buf) - vma->vm_start; |
| up_read(¤t->mm->mmap_sem); |
| VERIFY(err, offset < (uintptr_t)map->size); |
| if (err) |
| goto bail; |
| } |
| pages[idx].addr = map->phys + offset; |
| pages[idx].size = num << PAGE_SHIFT; |
| } |
| rpra[i].buf.pv = buf; |
| } |
| PERF_END); |
| for (i = bufs; i < bufs + handles; ++i) { |
| struct fastrpc_mmap *map = ctx->maps[i]; |
| |
| pages[i].addr = map->phys; |
| pages[i].size = map->size; |
| } |
| fdlist = (uint64_t *)&pages[bufs + handles]; |
| crclist = (uint32_t *)&fdlist[M_FDLIST]; |
| /* reset fds, crc and early wakeup hint memory */ |
| /* remote process updates these values before responding */ |
| memset(fdlist, 0, sizeof(uint64_t)*M_FDLIST + |
| sizeof(uint32_t)*M_CRCLIST + sizeof(earlyHint)); |
| |
| /* copy non ion buffers */ |
| PERF(ctx->fl->profile, GET_COUNTER(perf_counter, PERF_COPY), |
| rlen = copylen - metalen; |
| for (oix = 0; rpra && oix < inbufs + outbufs; ++oix) { |
| int i = ctx->overps[oix]->raix; |
| struct fastrpc_mmap *map = ctx->maps[i]; |
| size_t mlen; |
| uint64_t buf; |
| size_t len = lpra[i].buf.len; |
| |
| if (!len) |
| continue; |
| if (map) |
| continue; |
| if (ctx->overps[oix]->offset == 0) { |
| rlen -= ALIGN(args, BALIGN) - args; |
| args = ALIGN(args, BALIGN); |
| } |
| mlen = ctx->overps[oix]->mend - ctx->overps[oix]->mstart; |
| VERIFY(err, rlen >= mlen); |
| if (err) |
| goto bail; |
| rpra[i].buf.pv = |
| (args - ctx->overps[oix]->offset); |
| pages[list[i].pgidx].addr = ctx->buf->phys - |
| ctx->overps[oix]->offset + |
| (copylen - rlen); |
| pages[list[i].pgidx].addr = |
| buf_page_start(pages[list[i].pgidx].addr); |
| buf = rpra[i].buf.pv; |
| pages[list[i].pgidx].size = buf_num_pages(buf, len) * PAGE_SIZE; |
| if (i < inbufs) { |
| K_COPY_FROM_USER(err, kernel, uint64_to_ptr(buf), |
| lpra[i].buf.pv, len); |
| if (err) |
| goto bail; |
| } |
| args = args + mlen; |
| rlen -= mlen; |
| } |
| PERF_END); |
| |
| PERF(ctx->fl->profile, GET_COUNTER(perf_counter, PERF_FLUSH), |
| for (oix = 0; oix < inbufs + outbufs; ++oix) { |
| int i = ctx->overps[oix]->raix; |
| struct fastrpc_mmap *map = ctx->maps[i]; |
| |
| if (i+1 > inbufs) // Avoiding flush for outbufs |
| continue; |
| if (map && map->uncached) |
| continue; |
| if (ctx->fl->sctx->smmu.coherent && |
| !(map && (map->attr & FASTRPC_ATTR_NON_COHERENT))) |
| continue; |
| if (map && (map->attr & FASTRPC_ATTR_COHERENT)) |
| continue; |
| if (map && (map->attr & FASTRPC_ATTR_FORCE_NOFLUSH)) |
| continue; |
| |
| if (rpra && rpra[i].buf.len && (ctx->overps[oix]->mstart || |
| ctx->overps[oix]->do_cmo == 1)) { |
| if (map && map->buf) { |
| if ((buf_page_size(ctx->overps[oix]->mend - |
| ctx->overps[oix]->mstart)) == map->size) { |
| dma_buf_begin_cpu_access(map->buf, |
| DMA_TO_DEVICE); |
| dma_buf_end_cpu_access(map->buf, |
| DMA_TO_DEVICE); |
| pr_debug("Debug: adsprpc: %s: %s: sc 0x%x pv 0x%llx, mend 0x%llx mstart 0x%llx, len %zu size %zu\n", |
| current->comm, __func__, sc, |
| rpra[i].buf.pv, ctx->overps[oix]->mend, |
| ctx->overps[oix]->mstart, |
| rpra[i].buf.len, map->size); |
| } else { |
| uintptr_t offset; |
| uint64_t flush_len; |
| struct vm_area_struct *vma; |
| |
| down_read(¤t->mm->mmap_sem); |
| VERIFY(err, NULL != (vma = find_vma( |
| current->mm, rpra[i].buf.pv))); |
| if (err) { |
| up_read(¤t->mm->mmap_sem); |
| goto bail; |
| } |
| if (ctx->overps[oix]->do_cmo) { |
| offset = rpra[i].buf.pv - |
| vma->vm_start; |
| flush_len = rpra[i].buf.len; |
| } else { |
| offset = |
| ctx->overps[oix]->mstart |
| - vma->vm_start; |
| flush_len = |
| ctx->overps[oix]->mend - |
| ctx->overps[oix]->mstart; |
| } |
| up_read(¤t->mm->mmap_sem); |
| dma_buf_begin_cpu_access_partial( |
| map->buf, DMA_TO_DEVICE, offset, |
| flush_len); |
| dma_buf_end_cpu_access_partial( |
| map->buf, DMA_TO_DEVICE, offset, |
| flush_len); |
| pr_debug("Debug: adsprpc: %s: %s: sc 0x%x vm_start 0x%llx pv 0x%llx, offset 0x%llx, mend 0x%llx mstart 0x%llx, len %zu size %zu\n", |
| current->comm, __func__, sc, |
| vma->vm_start, rpra[i].buf.pv, offset, |
| ctx->overps[oix]->mend, |
| ctx->overps[oix]->mstart, |
| rpra[i].buf.len, map->size); |
| } |
| } |
| } |
| } |
| PERF_END); |
| for (i = bufs; rpra && i < bufs + handles; i++) { |
| if (ctx->fds) |
| rpra[i].dma.fd = ctx->fds[i]; |
| rpra[i].dma.len = (uint32_t)lpra[i].buf.len; |
| rpra[i].dma.offset = (uint32_t)(uintptr_t)lpra[i].buf.pv; |
| } |
| |
| /* Copy rpra to local buffer */ |
| if (ctx->lrpra && rpra && lrpralen > 0) |
| memcpy(ctx->lrpra, rpra, lrpralen); |
| bail: |
| return err; |
| } |
| |
| static int put_args(uint32_t kernel, struct smq_invoke_ctx *ctx, |
| remote_arg_t *upra) |
| { |
| uint32_t sc = ctx->sc; |
| struct smq_invoke_buf *list; |
| struct smq_phy_page *pages; |
| struct fastrpc_mmap *mmap; |
| uint64_t *fdlist; |
| uint32_t *crclist = NULL; |
| |
| remote_arg64_t *rpra = ctx->lrpra; |
| int i, inbufs, outbufs, handles; |
| int err = 0; |
| |
| inbufs = REMOTE_SCALARS_INBUFS(sc); |
| outbufs = REMOTE_SCALARS_OUTBUFS(sc); |
| handles = REMOTE_SCALARS_INHANDLES(sc) + REMOTE_SCALARS_OUTHANDLES(sc); |
| list = smq_invoke_buf_start(ctx->rpra, sc); |
| pages = smq_phy_page_start(sc, list); |
| fdlist = (uint64_t *)(pages + inbufs + outbufs + handles); |
| crclist = (uint32_t *)(fdlist + M_FDLIST); |
| |
| for (i = inbufs; i < inbufs + outbufs; ++i) { |
| if (!ctx->maps[i]) { |
| K_COPY_TO_USER(err, kernel, |
| ctx->lpra[i].buf.pv, |
| uint64_to_ptr(rpra[i].buf.pv), |
| rpra[i].buf.len); |
| if (err) |
| goto bail; |
| } else { |
| mutex_lock(&ctx->fl->map_mutex); |
| fastrpc_mmap_free(ctx->maps[i], 0); |
| mutex_unlock(&ctx->fl->map_mutex); |
| ctx->maps[i] = NULL; |
| } |
| } |
| mutex_lock(&ctx->fl->map_mutex); |
| if (inbufs + outbufs + handles) { |
| for (i = 0; i < M_FDLIST; i++) { |
| if (!fdlist[i]) |
| break; |
| if (!fastrpc_mmap_find(ctx->fl, (int)fdlist[i], 0, 0, |
| 0, 0, &mmap)) |
| fastrpc_mmap_free(mmap, 0); |
| } |
| } |
| mutex_unlock(&ctx->fl->map_mutex); |
| if (ctx->crc && crclist && rpra) |
| K_COPY_TO_USER(err, kernel, ctx->crc, |
| crclist, M_CRCLIST*sizeof(uint32_t)); |
| |
| bail: |
| return err; |
| } |
| |
| static void inv_args(struct smq_invoke_ctx *ctx) |
| { |
| int i, inbufs, outbufs; |
| uint32_t sc = ctx->sc; |
| remote_arg64_t *rpra = ctx->lrpra; |
| int err = 0; |
| |
| inbufs = REMOTE_SCALARS_INBUFS(sc); |
| outbufs = REMOTE_SCALARS_OUTBUFS(sc); |
| for (i = 0; i < inbufs + outbufs; ++i) { |
| int over = ctx->overps[i]->raix; |
| struct fastrpc_mmap *map = ctx->maps[over]; |
| |
| if ((over + 1 <= inbufs)) |
| continue; |
| |
| if (map && map->uncached) |
| continue; |
| if (!rpra[over].buf.len) |
| continue; |
| if (ctx->fl->sctx->smmu.coherent && |
| !(map && (map->attr & FASTRPC_ATTR_NON_COHERENT))) |
| continue; |
| if (map && (map->attr & FASTRPC_ATTR_COHERENT)) |
| continue; |
| if (map && (map->attr & FASTRPC_ATTR_FORCE_NOINVALIDATE)) |
| continue; |
| |
| if (buf_page_start(ptr_to_uint64((void *)rpra)) == |
| buf_page_start(rpra[over].buf.pv)) { |
| continue; |
| } |
| if (ctx->overps[i]->mstart || ctx->overps[i]->do_cmo == 1) { |
| if (map && map->buf) { |
| if ((buf_page_size(ctx->overps[i]->mend - |
| ctx->overps[i]->mstart)) == map->size) { |
| dma_buf_begin_cpu_access(map->buf, |
| DMA_TO_DEVICE); |
| dma_buf_end_cpu_access(map->buf, |
| DMA_FROM_DEVICE); |
| pr_debug("Debug: adsprpc: %s: %s: sc 0x%x pv 0x%llx, mend 0x%llx mstart 0x%llx, len %zu size %zu\n", |
| current->comm, __func__, sc, |
| rpra[over].buf.pv, ctx->overps[i]->mend, |
| ctx->overps[i]->mstart, |
| rpra[over].buf.len, map->size); |
| } else { |
| uintptr_t offset; |
| uint64_t inv_len; |
| struct vm_area_struct *vma; |
| |
| down_read(¤t->mm->mmap_sem); |
| VERIFY(err, NULL != (vma = find_vma( |
| current->mm, |
| rpra[over].buf.pv))); |
| if (err) { |
| up_read(¤t->mm->mmap_sem); |
| goto bail; |
| } |
| if (ctx->overps[i]->do_cmo) { |
| offset = rpra[over].buf.pv - |
| vma->vm_start; |
| inv_len = rpra[over].buf.len; |
| } else { |
| offset = |
| ctx->overps[i]->mstart - |
| vma->vm_start; |
| inv_len = |
| ctx->overps[i]->mend - |
| ctx->overps[i]->mstart; |
| } |
| up_read(¤t->mm->mmap_sem); |
| dma_buf_begin_cpu_access_partial( |
| map->buf, DMA_TO_DEVICE, offset, |
| inv_len); |
| dma_buf_end_cpu_access_partial(map->buf, |
| DMA_FROM_DEVICE, offset, |
| inv_len); |
| pr_debug("Debug: adsprpc: %s: %s: sc 0x%x vm_start 0x%llx pv 0x%llx, offset 0x%llx, mend 0x%llx mstart 0x%llx, len %zu size %zu\n", |
| current->comm, __func__, sc, |
| vma->vm_start, rpra[over].buf.pv, |
| offset, ctx->overps[i]->mend, |
| ctx->overps[i]->mstart, |
| rpra[over].buf.len, map->size); |
| } |
| } |
| } |
| } |
| bail: |
| return; |
| } |
| |
| static int fastrpc_invoke_send(struct smq_invoke_ctx *ctx, |
| uint32_t kernel, uint32_t handle) |
| { |
| struct smq_msg *msg = &ctx->msg; |
| struct fastrpc_file *fl = ctx->fl; |
| struct fastrpc_channel_ctx *channel_ctx = &fl->apps->channel[fl->cid]; |
| int err = 0; |
| |
| mutex_lock(&channel_ctx->smd_mutex); |
| msg->pid = fl->tgid; |
| msg->tid = current->pid; |
| if (fl->sessionid) |
| msg->tid |= (1 << SESSION_ID_INDEX); |
| if (kernel) |
| msg->pid = 0; |
| msg->invoke.header.ctx = ctx->ctxid | fl->pd; |
| msg->invoke.header.handle = handle; |
| msg->invoke.header.sc = ctx->sc; |
| msg->invoke.page.addr = ctx->buf ? ctx->buf->phys : 0; |
| msg->invoke.page.size = buf_page_size(ctx->used); |
| |
| if (fl->ssrcount != channel_ctx->ssrcount) { |
| err = -ECONNRESET; |
| mutex_unlock(&channel_ctx->smd_mutex); |
| goto bail; |
| } |
| mutex_unlock(&channel_ctx->smd_mutex); |
| |
| mutex_lock(&channel_ctx->rpmsg_mutex); |
| VERIFY(err, !IS_ERR_OR_NULL(channel_ctx->rpdev)); |
| if (err) { |
| err = -ECONNRESET; |
| mutex_unlock(&channel_ctx->rpmsg_mutex); |
| goto bail; |
| } |
| err = rpmsg_send(channel_ctx->rpdev->ept, (void *)msg, sizeof(*msg)); |
| trace_fastrpc_rpmsg_send(fl->cid, (uint64_t)ctx, msg->invoke.header.ctx, |
| handle, ctx->sc, msg->invoke.page.addr, msg->invoke.page.size); |
| LOG_FASTRPC_GLINK_MSG(channel_ctx->ipc_log_ctx, |
| "sent pkt %pK (sz %d): ctx 0x%llx, handle 0x%x, sc 0x%x (rpmsg err %d)", |
| (void *)msg, sizeof(*msg), |
| msg->invoke.header.ctx, handle, ctx->sc, err); |
| mutex_unlock(&channel_ctx->rpmsg_mutex); |
| bail: |
| return err; |
| } |
| |
| static void fastrpc_init(struct fastrpc_apps *me) |
| { |
| int i; |
| |
| INIT_HLIST_HEAD(&me->drivers); |
| INIT_HLIST_HEAD(&me->maps); |
| spin_lock_init(&me->hlock); |
| me->channel = &gcinfo[0]; |
| for (i = 0; i < NUM_CHANNELS; i++) { |
| init_completion(&me->channel[i].work); |
| init_completion(&me->channel[i].workport); |
| me->channel[i].sesscount = 0; |
| /* All channels are secure by default except CDSP */ |
| me->channel[i].secure = SECURE_CHANNEL; |
| mutex_init(&me->channel[i].smd_mutex); |
| mutex_init(&me->channel[i].rpmsg_mutex); |
| spin_lock_init(&me->channel[i].ctxlock); |
| } |
| /* Set CDSP channel to non secure */ |
| me->channel[CDSP_DOMAIN_ID].secure = NON_SECURE_CHANNEL; |
| } |
| |
| static inline void fastrpc_pm_awake(struct fastrpc_file *fl, int channel_type) |
| { |
| struct fastrpc_apps *me = &gfa; |
| struct wakeup_source *wake_source = NULL; |
| |
| /* |
| * Vote with PM to abort any suspend in progress and |
| * keep system awake for specified timeout |
| */ |
| if (channel_type == SECURE_CHANNEL) |
| wake_source = me->wake_source_secure; |
| else if (channel_type == NON_SECURE_CHANNEL) |
| wake_source = me->wake_source; |
| |
| if (wake_source) |
| pm_wakeup_ws_event(wake_source, fl->ws_timeout, true); |
| } |
| |
| static inline int fastrpc_wait_for_response(struct smq_invoke_ctx *ctx, |
| uint32_t kernel) |
| { |
| int interrupted = 0; |
| |
| if (kernel) |
| wait_for_completion(&ctx->work); |
| else |
| interrupted = wait_for_completion_interruptible(&ctx->work); |
| |
| return interrupted; |
| } |
| |
| static void fastrpc_wait_for_completion(struct smq_invoke_ctx *ctx, |
| int *pInterrupted, uint32_t kernel) |
| { |
| int interrupted = 0, err = 0; |
| int jj; |
| bool wait_resp; |
| uint32_t wTimeout = FASTRPC_USER_EARLY_HINT_TIMEOUT; |
| uint32_t wakeTime = 0; |
| |
| if (!ctx) { |
| /* This failure is not expected */ |
| err = *pInterrupted = EFAULT; |
| pr_err("Error %d: adsprpc: %s: %s: ctx is NULL, cannot wait for response\n", |
| err, current->comm, __func__); |
| return; |
| } |
| wakeTime = ctx->earlyWakeTime; |
| |
| do { |
| switch (ctx->rspFlags) { |
| /* try polling on completion with timeout */ |
| case USER_EARLY_SIGNAL: |
| /* try wait if completion time is less than timeout */ |
| /* disable preempt to avoid context switch latency */ |
| preempt_disable(); |
| jj = 0; |
| wait_resp = false; |
| for (; wakeTime < wTimeout && jj < wTimeout; jj++) { |
| wait_resp = try_wait_for_completion(&ctx->work); |
| if (wait_resp) |
| break; |
| udelay(1); |
| } |
| preempt_enable_no_resched(); |
| if (!wait_resp) { |
| interrupted = fastrpc_wait_for_response(ctx, |
| kernel); |
| *pInterrupted = interrupted; |
| if (interrupted || ctx->isWorkDone) |
| return; |
| } |
| break; |
| |
| /* busy poll on memory for actual job done */ |
| case EARLY_RESPONSE: |
| err = poll_on_early_response(ctx); |
| |
| /* Mark job done if poll on memory successful */ |
| /* Wait for completion if poll on memory timoeut */ |
| if (!err) { |
| ctx->isWorkDone = true; |
| } else if (!ctx->isWorkDone) { |
| pr_info("adsprpc: %s: %s: poll timeout for handle 0x%x, sc 0x%x\n", |
| __func__, current->comm, ctx->handle, ctx->sc); |
| interrupted = fastrpc_wait_for_response(ctx, |
| kernel); |
| *pInterrupted = interrupted; |
| if (interrupted || ctx->isWorkDone) |
| return; |
| } |
| break; |
| |
| case COMPLETE_SIGNAL: |
| case NORMAL_RESPONSE: |
| interrupted = fastrpc_wait_for_response(ctx, kernel); |
| *pInterrupted = interrupted; |
| if (interrupted || ctx->isWorkDone) |
| return; |
| break; |
| |
| default: |
| *pInterrupted = EBADR; |
| pr_err("Error: adsprpc: %s: unsupported response flags 0x%x for handle 0x%x, sc 0x%x\n", |
| current->comm, ctx->rspFlags, ctx->handle, ctx->sc); |
| return; |
| } /* end of switch */ |
| } while (!ctx->isWorkDone); |
| } |
| |
| static void fastrpc_update_invoke_count(uint32_t handle, int64_t *perf_counter, |
| struct timespec64 *invoket) |
| { |
| /* update invoke count for dynamic handles */ |
| if (handle != FASTRPC_STATIC_HANDLE_LISTENER) { |
| int64_t *count = GET_COUNTER(perf_counter, PERF_INVOKE); |
| |
| if (count) |
| *count += getnstimediff(invoket); |
| } |
| if (handle > FASTRPC_STATIC_HANDLE_MAX) { |
| int64_t *count = GET_COUNTER(perf_counter, PERF_COUNT); |
| |
| if (count) |
| *count += 1; |
| } |
| } |
| |
| static int fastrpc_internal_invoke(struct fastrpc_file *fl, uint32_t mode, |
| uint32_t kernel, |
| struct fastrpc_ioctl_invoke_crc *inv) |
| { |
| struct smq_invoke_ctx *ctx = NULL; |
| struct fastrpc_ioctl_invoke *invoke = &inv->inv; |
| int err = 0, interrupted = 0, cid = fl->cid; |
| struct timespec64 invoket = {0}; |
| int64_t *perf_counter = NULL; |
| |
| if (fl->profile) { |
| perf_counter = getperfcounter(fl, PERF_COUNT); |
| ktime_get_real_ts64(&invoket); |
| } |
| |
| if (!kernel) { |
| VERIFY(err, invoke->handle != |
| FASTRPC_STATIC_HANDLE_PROCESS_GROUP); |
| VERIFY(err, invoke->handle != |
| FASTRPC_STATIC_HANDLE_DSP_UTILITIES); |
| if (err) { |
| pr_err("adsprpc: ERROR: %s: user application %s trying to send a kernel RPC message to channel %d, handle 0x%x\n", |
| __func__, current->comm, cid, invoke->handle); |
| goto bail; |
| } |
| } |
| |
| VERIFY(err, cid >= ADSP_DOMAIN_ID && cid < NUM_CHANNELS && |
| fl->sctx != NULL); |
| if (err) { |
| pr_err("adsprpc: ERROR: %s: kernel session not initialized yet for %s\n", |
| __func__, current->comm); |
| err = EBADR; |
| goto bail; |
| } |
| |
| if (!kernel) { |
| err = context_restore_interrupted(fl, inv, &ctx); |
| if (err) |
| goto bail; |
| if (fl->sctx->smmu.faults) |
| err = FASTRPC_ENOSUCH; |
| if (err) |
| goto bail; |
| if (ctx) { |
| trace_fastrpc_context_restore(cid, (uint64_t)ctx, |
| ctx->msg.invoke.header.ctx, |
| ctx->handle, ctx->sc); |
| goto wait; |
| } |
| } |
| |
| VERIFY(err, 0 == context_alloc(fl, kernel, inv, &ctx)); |
| if (err) |
| goto bail; |
| |
| if (REMOTE_SCALARS_LENGTH(ctx->sc)) { |
| PERF(fl->profile, GET_COUNTER(perf_counter, PERF_GETARGS), |
| VERIFY(err, 0 == get_args(kernel, ctx)); |
| PERF_END); |
| if (err) |
| goto bail; |
| } |
| |
| PERF(fl->profile, GET_COUNTER(perf_counter, PERF_INVARGS), |
| inv_args(ctx); |
| PERF_END); |
| |
| PERF(fl->profile, GET_COUNTER(perf_counter, PERF_LINK), |
| VERIFY(err, 0 == fastrpc_invoke_send(ctx, kernel, invoke->handle)); |
| PERF_END); |
| |
| if (err) |
| goto bail; |
| wait: |
| fastrpc_wait_for_completion(ctx, &interrupted, kernel); |
| VERIFY(err, 0 == (err = interrupted)); |
| if (err) |
| goto bail; |
| |
| if (!ctx->isWorkDone) { |
| err = EPROTO; |
| pr_err("Error: adsprpc: %s: %s: WorkDone state is invalid for handle 0x%x, sc 0x%x\n", |
| __func__, current->comm, invoke->handle, ctx->sc); |
| goto bail; |
| } |
| |
| PERF(fl->profile, GET_COUNTER(perf_counter, PERF_INVARGS), |
| inv_args(ctx); |
| PERF_END); |
| |
| VERIFY(err, 0 == (err = ctx->retval)); |
| if (err) |
| goto bail; |
| |
| PERF(fl->profile, GET_COUNTER(perf_counter, PERF_PUTARGS), |
| VERIFY(err, 0 == put_args(kernel, ctx, invoke->pra)); |
| PERF_END); |
| if (err) |
| goto bail; |
| bail: |
| if (ctx && interrupted == -ERESTARTSYS) { |
| trace_fastrpc_context_interrupt(cid, (uint64_t)ctx, |
| ctx->msg.invoke.header.ctx, ctx->handle, ctx->sc); |
| context_save_interrupted(ctx); |
| } |
| else if (ctx) |
| context_free(ctx); |
| if (fl->ssrcount != fl->apps->channel[cid].ssrcount) |
| err = ECONNRESET; |
| |
| if (fl->profile && !interrupted) |
| fastrpc_update_invoke_count(invoke->handle, perf_counter, |
| &invoket); |
| return err; |
| } |
| |
| static int fastrpc_get_spd_session(char *name, int *session, int *cid) |
| { |
| struct fastrpc_apps *me = &gfa; |
| int err = 0, i, j, match = 0; |
| |
| for (i = 0; i < NUM_CHANNELS; i++) { |
| for (j = 0; j < NUM_SESSIONS; j++) { |
| if (!me->channel[i].spd[j].servloc_name) |
| continue; |
| if (!strcmp(name, me->channel[i].spd[j].servloc_name)) { |
| match = 1; |
| break; |
| } |
| } |
| if (match) |
| break; |
| } |
| VERIFY(err, i < NUM_CHANNELS && j < NUM_SESSIONS); |
| if (err) |
| goto bail; |
| *cid = i; |
| *session = j; |
| bail: |
| return err; |
| } |
| |
| static int fastrpc_mmap_remove_pdr(struct fastrpc_file *fl); |
| static int fastrpc_channel_open(struct fastrpc_file *fl); |
| static int fastrpc_mmap_remove_ssr(struct fastrpc_file *fl); |
| static int fastrpc_init_process(struct fastrpc_file *fl, |
| struct fastrpc_ioctl_init_attrs *uproc) |
| { |
| int err = 0, rh_hyp_done = 0; |
| struct fastrpc_apps *me = &gfa; |
| struct fastrpc_ioctl_invoke_crc ioctl; |
| struct fastrpc_ioctl_init *init = &uproc->init; |
| struct smq_phy_page pages[1]; |
| struct fastrpc_mmap *file = NULL, *mem = NULL; |
| struct fastrpc_buf *imem = NULL; |
| unsigned long imem_dma_attr = 0; |
| char *proc_name = NULL; |
| |
| VERIFY(err, 0 == (err = fastrpc_channel_open(fl))); |
| if (err) |
| goto bail; |
| if (init->flags == FASTRPC_INIT_ATTACH || |
| init->flags == FASTRPC_INIT_ATTACH_SENSORS) { |
| remote_arg_t ra[1]; |
| int tgid = fl->tgid; |
| |
| ra[0].buf.pv = (void *)&tgid; |
| ra[0].buf.len = sizeof(tgid); |
| ioctl.inv.handle = FASTRPC_STATIC_HANDLE_PROCESS_GROUP; |
| ioctl.inv.sc = REMOTE_SCALARS_MAKE(0, 1, 0); |
| ioctl.inv.pra = ra; |
| ioctl.fds = NULL; |
| ioctl.attrs = NULL; |
| ioctl.crc = NULL; |
| if (init->flags == FASTRPC_INIT_ATTACH) |
| fl->pd = 0; |
| else if (init->flags == FASTRPC_INIT_ATTACH_SENSORS) { |
| if (fl->cid == ADSP_DOMAIN_ID) |
| fl->servloc_name = |
| SENSORS_PDR_ADSP_SERVICE_LOCATION_CLIENT_NAME; |
| else if (fl->cid == SDSP_DOMAIN_ID) |
| fl->servloc_name = |
| SENSORS_PDR_SLPI_SERVICE_LOCATION_CLIENT_NAME; |
| fl->pd = 2; |
| } |
| VERIFY(err, !(err = fastrpc_internal_invoke(fl, |
| FASTRPC_MODE_PARALLEL, 1, &ioctl))); |
| if (err) |
| goto bail; |
| } else if (init->flags == FASTRPC_INIT_CREATE) { |
| int memlen; |
| |
| remote_arg_t ra[6]; |
| int fds[6]; |
| int mflags = 0; |
| struct { |
| int pgid; |
| unsigned int namelen; |
| unsigned int filelen; |
| unsigned int pageslen; |
| int attrs; |
| int siglen; |
| } inbuf; |
| |
| inbuf.pgid = fl->tgid; |
| inbuf.namelen = strlen(current->comm) + 1; |
| inbuf.filelen = init->filelen; |
| fl->pd = 1; |
| |
| VERIFY(err, access_ok(0, (void __user *)init->file, |
| init->filelen)); |
| if (err) |
| goto bail; |
| if (init->filelen) { |
| mutex_lock(&fl->map_mutex); |
| VERIFY(err, !fastrpc_mmap_create(fl, init->filefd, 0, |
| init->file, init->filelen, mflags, &file)); |
| mutex_unlock(&fl->map_mutex); |
| if (err) |
| goto bail; |
| } |
| inbuf.pageslen = 1; |
| |
| VERIFY(err, !init->mem); |
| if (err) { |
| err = -EINVAL; |
| pr_err("adsprpc: %s: %s: ERROR: donated memory allocated in userspace\n", |
| current->comm, __func__); |
| goto bail; |
| } |
| memlen = ALIGN(max(1024*1024*3, (int)init->filelen * 4), |
| 1024*1024); |
| imem_dma_attr = DMA_ATTR_EXEC_MAPPING | |
| DMA_ATTR_DELAYED_UNMAP | |
| DMA_ATTR_NO_KERNEL_MAPPING | |
| DMA_ATTR_FORCE_NON_COHERENT; |
| err = fastrpc_buf_alloc(fl, memlen, imem_dma_attr, 0, 0, &imem); |
| if (err) |
| goto bail; |
| if (fl->init_mem) |
| fastrpc_buf_free(fl->init_mem, 0); |
| |
| fl->init_mem = imem; |
| inbuf.pageslen = 1; |
| ra[0].buf.pv = (void *)&inbuf; |
| ra[0].buf.len = sizeof(inbuf); |
| fds[0] = -1; |
| |
| ra[1].buf.pv = (void *)current->comm; |
| ra[1].buf.len = inbuf.namelen; |
| fds[1] = -1; |
| |
| ra[2].buf.pv = (void *)init->file; |
| ra[2].buf.len = inbuf.filelen; |
| fds[2] = init->filefd; |
| |
| pages[0].addr = imem->phys; |
| pages[0].size = imem->size; |
| ra[3].buf.pv = (void *)pages; |
| ra[3].buf.len = 1 * sizeof(*pages); |
| fds[3] = -1; |
| |
| inbuf.attrs = uproc->attrs; |
| ra[4].buf.pv = (void *)&(inbuf.attrs); |
| ra[4].buf.len = sizeof(inbuf.attrs); |
| fds[4] = -1; |
| |
| inbuf.siglen = uproc->siglen; |
| ra[5].buf.pv = (void *)&(inbuf.siglen); |
| ra[5].buf.len = sizeof(inbuf.siglen); |
| fds[5] = -1; |
| |
| ioctl.inv.handle = FASTRPC_STATIC_HANDLE_PROCESS_GROUP; |
| ioctl.inv.sc = REMOTE_SCALARS_MAKE(6, 4, 0); |
| if (uproc->attrs) |
| ioctl.inv.sc = REMOTE_SCALARS_MAKE(7, 6, 0); |
| ioctl.inv.pra = ra; |
| ioctl.fds = fds; |
| ioctl.attrs = NULL; |
| ioctl.crc = NULL; |
| VERIFY(err, !(err = fastrpc_internal_invoke(fl, |
| FASTRPC_MODE_PARALLEL, 1, &ioctl))); |
| if (err) |
| goto bail; |
| } else if (init->flags == FASTRPC_INIT_CREATE_STATIC) { |
| remote_arg_t ra[3]; |
| uint64_t phys = 0; |
| size_t size = 0; |
| int fds[3]; |
| struct { |
| int pgid; |
| unsigned int namelen; |
| unsigned int pageslen; |
| } inbuf; |
| |
| if (!init->filelen) |
| goto bail; |
| |
| proc_name = kzalloc(init->filelen, GFP_KERNEL); |
| VERIFY(err, !IS_ERR_OR_NULL(proc_name)); |
| if (err) |
| goto bail; |
| VERIFY(err, 0 == copy_from_user((void *)proc_name, |
| (void __user *)init->file, init->filelen)); |
| if (err) |
| goto bail; |
| |
| fl->pd = 1; |
| inbuf.pgid = current->tgid; |
| inbuf.namelen = init->filelen; |
| inbuf.pageslen = 0; |
| |
| if (!strcmp(proc_name, "audiopd")) { |
| fl->servloc_name = |
| AUDIO_PDR_SERVICE_LOCATION_CLIENT_NAME; |
| VERIFY(err, !fastrpc_mmap_remove_pdr(fl)); |
| if (err) |
| goto bail; |
| } |
| |
| if (!me->staticpd_flags && !(me->legacy_remote_heap)) { |
| inbuf.pageslen = 1; |
| mutex_lock(&fl->map_mutex); |
| err = fastrpc_mmap_create(fl, -1, 0, init->mem, |
| init->memlen, ADSP_MMAP_REMOTE_HEAP_ADDR, |
| &mem); |
| mutex_unlock(&fl->map_mutex); |
| if (err) |
| goto bail; |
| phys = mem->phys; |
| size = mem->size; |
| if (me->channel[fl->cid].rhvm.vmid) { |
| err = hyp_assign_phys(phys, |
| (uint64_t)size, hlosvm, 1, |
| me->channel[fl->cid].rhvm.vmid, |
| me->channel[fl->cid].rhvm.vmperm, |
| me->channel[fl->cid].rhvm.vmcount); |
| if (err) { |
| pr_err("adsprpc: %s: rh hyp assign failed with %d for phys 0x%llx, size %zd\n", |
| __func__, err, phys, size); |
| goto bail; |
| } |
| rh_hyp_done = 1; |
| } |
| me->staticpd_flags = 1; |
| } |
| |
| ra[0].buf.pv = (void *)&inbuf; |
| ra[0].buf.len = sizeof(inbuf); |
| fds[0] = -1; |
| |
| ra[1].buf.pv = (void *)proc_name; |
| ra[1].buf.len = inbuf.namelen; |
| fds[1] = -1; |
| |
| pages[0].addr = phys; |
| pages[0].size = size; |
| |
| ra[2].buf.pv = (void *)pages; |
| ra[2].buf.len = sizeof(*pages); |
| fds[2] = -1; |
| ioctl.inv.handle = FASTRPC_STATIC_HANDLE_PROCESS_GROUP; |
| |
| ioctl.inv.sc = REMOTE_SCALARS_MAKE(8, 3, 0); |
| ioctl.inv.pra = ra; |
| ioctl.fds = NULL; |
| ioctl.attrs = NULL; |
| ioctl.crc = NULL; |
| VERIFY(err, !(err = fastrpc_internal_invoke(fl, |
| FASTRPC_MODE_PARALLEL, 1, &ioctl))); |
| if (err) |
| goto bail; |
| } else { |
| err = -ENOTTY; |
| goto bail; |
| } |
| fl->dsp_proc_init = 1; |
| bail: |
| kfree(proc_name); |
| if (err && (init->flags == FASTRPC_INIT_CREATE_STATIC)) |
| me->staticpd_flags = 0; |
| if (mem && err) { |
| if (mem->flags == ADSP_MMAP_REMOTE_HEAP_ADDR |
| && me->channel[fl->cid].rhvm.vmid && rh_hyp_done) { |
| int hyp_err = 0; |
| |
| hyp_err = hyp_assign_phys(mem->phys, |
| (uint64_t)mem->size, |
| me->channel[fl->cid].rhvm.vmid, |
| me->channel[fl->cid].rhvm.vmcount, |
| hlosvm, hlosvmperm, 1); |
| if (hyp_err) |
| pr_warn("adsprpc: %s: %s: rh hyp unassign failed with %d for phys 0x%llx of size %zd\n", |
| __func__, current->comm, |
| hyp_err, mem->phys, mem->size); |
| } |
| mutex_lock(&fl->map_mutex); |
| fastrpc_mmap_free(mem, 0); |
| mutex_unlock(&fl->map_mutex); |
| } |
| if (err) { |
| if (!IS_ERR_OR_NULL(fl->init_mem)) { |
| fastrpc_buf_free(fl->init_mem, 0); |
| fl->init_mem = NULL; |
| } |
| } |
| if (file) { |
| mutex_lock(&fl->map_mutex); |
| fastrpc_mmap_free(file, 0); |
| mutex_unlock(&fl->map_mutex); |
| } |
| return err; |
| } |
| |
| static int fastrpc_kstat(const char *filename, struct kstat *stat) |
| { |
| int result; |
| mm_segment_t fs_old; |
| |
| fs_old = get_fs(); |
| set_fs(KERNEL_DS); |
| result = vfs_stat((const char __user *)filename, stat); |
| set_fs(fs_old); |
| |
| return result; |
| } |
| |
| static int fastrpc_send_cpuinfo_to_dsp(struct fastrpc_file *fl) |
| { |
| int err = 0; |
| uint64_t cpuinfo = 0; |
| struct fastrpc_apps *me = &gfa; |
| struct fastrpc_ioctl_invoke_crc ioctl; |
| remote_arg_t ra[2]; |
| |
| VERIFY(err, fl && fl->cid >= ADSP_DOMAIN_ID && fl->cid < NUM_CHANNELS); |
| if (err) |
| goto bail; |
| |
| cpuinfo = me->channel[fl->cid].cpuinfo_todsp; |
| /* return success if already updated to remote processor */ |
| if (me->channel[fl->cid].cpuinfo_status) |
| return 0; |
| |
| ra[0].buf.pv = (void *)&cpuinfo; |
| ra[0].buf.len = sizeof(cpuinfo); |
| ioctl.inv.handle = FASTRPC_STATIC_HANDLE_DSP_UTILITIES; |
| ioctl.inv.sc = REMOTE_SCALARS_MAKE(1, 1, 0); |
| ioctl.inv.pra = ra; |
| ioctl.fds = NULL; |
| ioctl.attrs = NULL; |
| ioctl.crc = NULL; |
| fl->pd = 1; |
| |
| err = fastrpc_internal_invoke(fl, FASTRPC_MODE_PARALLEL, 1, &ioctl); |
| if (!err) |
| me->channel[fl->cid].cpuinfo_status = true; |
| bail: |
| return err; |
| } |
| |
| static int fastrpc_get_info_from_dsp(struct fastrpc_file *fl, |
| uint32_t *dsp_attr_buf, |
| uint32_t dsp_attr_buf_len, |
| uint32_t domain) |
| { |
| int err = 0, dsp_support = 0; |
| struct fastrpc_ioctl_invoke_crc ioctl; |
| remote_arg_t ra[2]; |
| struct kstat sb; |
| |
| // Querying device about DSP support |
| switch (domain) { |
| case ADSP_DOMAIN_ID: |
| if (!fastrpc_kstat("/dev/subsys_adsp", &sb)) |
| dsp_support = 1; |
| break; |
| case MDSP_DOMAIN_ID: |
| //Modem not supported for fastRPC |
| break; |
| case SDSP_DOMAIN_ID: |
| if (!fastrpc_kstat("/dev/subsys_slpi", &sb)) |
| dsp_support = 1; |
| break; |
| case CDSP_DOMAIN_ID: |
| if (!fastrpc_kstat("/dev/subsys_cdsp", &sb)) |
| dsp_support = 1; |
| break; |
| default: |
| dsp_support = 0; |
| break; |
| } |
| dsp_attr_buf[0] = dsp_support; |
| |
| if (dsp_support == 0) |
| goto bail; |
| |
| err = fastrpc_channel_open(fl); |
| if (err) |
| goto bail; |
| |
| ra[0].buf.pv = (void *)&dsp_attr_buf_len; |
| ra[0].buf.len = sizeof(dsp_attr_buf_len); |
| ra[1].buf.pv = (void *)(&dsp_attr_buf[1]); |
| ra[1].buf.len = dsp_attr_buf_len * sizeof(uint32_t); |
| ioctl.inv.handle = FASTRPC_STATIC_HANDLE_DSP_UTILITIES; |
| ioctl.inv.sc = REMOTE_SCALARS_MAKE(0, 1, 1); |
| ioctl.inv.pra = ra; |
| ioctl.fds = NULL; |
| ioctl.attrs = NULL; |
| ioctl.crc = NULL; |
| fl->pd = 1; |
| |
| err = fastrpc_internal_invoke(fl, FASTRPC_MODE_PARALLEL, 1, &ioctl); |
| bail: |
| |
| if (err) |
| pr_err("adsprpc: %s: %s: could not obtain dsp information, err val 0x%x\n", |
| current->comm, __func__, err); |
| return err; |
| } |
| |
| static int fastrpc_get_info_from_kernel( |
| struct fastrpc_ioctl_dsp_capabilities *dsp_cap, |
| struct fastrpc_file *fl) |
| { |
| int err = 0; |
| uint32_t domain_support; |
| uint32_t domain = dsp_cap->domain; |
| |
| if (!gcinfo[domain].dsp_cap_kernel.is_cached) { |
| /* |
| * Information not on kernel, query device for information |
| * and cache on kernel |
| */ |
| err = fastrpc_get_info_from_dsp(fl, dsp_cap->dsp_attributes, |
| FASTRPC_MAX_DSP_ATTRIBUTES - 1, |
| domain); |
| if (err) |
| goto bail; |
| |
| domain_support = dsp_cap->dsp_attributes[0]; |
| switch (domain_support) { |
| case 0: |
| memset(dsp_cap->dsp_attributes, 0, |
| sizeof(dsp_cap->dsp_attributes)); |
| memset(&gcinfo[domain].dsp_cap_kernel.dsp_attributes, |
| 0, sizeof(dsp_cap->dsp_attributes)); |
| break; |
| case 1: |
| memcpy(&gcinfo[domain].dsp_cap_kernel.dsp_attributes, |
| dsp_cap->dsp_attributes, |
| sizeof(dsp_cap->dsp_attributes)); |
| break; |
| default: |
| err = -1; |
| /* |
| * Reset is_cached flag to 0 so subsequent calls |
| * can try to query dsp again |
| */ |
| gcinfo[domain].dsp_cap_kernel.is_cached = 0; |
| pr_warn("adsprpc: %s: %s: returned bad domain support value %d\n", |
| current->comm, |
| __func__, |
| domain_support); |
| goto bail; |
| } |
| gcinfo[domain].dsp_cap_kernel.is_cached = 1; |
| } else { |
| // Information on Kernel, pass it to user |
| memcpy(dsp_cap->dsp_attributes, |
| &gcinfo[domain].dsp_cap_kernel.dsp_attributes, |
| sizeof(dsp_cap->dsp_attributes)); |
| } |
| bail: |
| return err; |
| } |
| |
| static int fastrpc_release_current_dsp_process(struct fastrpc_file *fl) |
| { |
| int err = 0; |
| struct fastrpc_ioctl_invoke_crc ioctl; |
| remote_arg_t ra[1]; |
| int tgid = 0; |
| |
| VERIFY(err, fl->cid >= ADSP_DOMAIN_ID && fl->cid < NUM_CHANNELS); |
| if (err) |
| goto bail; |
| VERIFY(err, fl->sctx != NULL); |
| if (err) |
| goto bail; |
| VERIFY(err, fl->apps->channel[fl->cid].rpdev != NULL); |
| if (err) |
| goto bail; |
| VERIFY(err, fl->apps->channel[fl->cid].issubsystemup == 1); |
| if (err) |
| goto bail; |
| tgid = fl->tgid; |
| ra[0].buf.pv = (void *)&tgid; |
| ra[0].buf.len = sizeof(tgid); |
| ioctl.inv.handle = FASTRPC_STATIC_HANDLE_PROCESS_GROUP; |
| ioctl.inv.sc = REMOTE_SCALARS_MAKE(1, 1, 0); |
| ioctl.inv.pra = ra; |
| ioctl.fds = NULL; |
| ioctl.attrs = NULL; |
| ioctl.crc = NULL; |
| VERIFY(err, 0 == (err = fastrpc_internal_invoke(fl, |
| FASTRPC_MODE_PARALLEL, 1, &ioctl))); |
| if (err && fl->dsp_proc_init) |
| pr_err("adsprpc: %s: releasing DSP process failed with %d (0x%x) for %s\n", |
| __func__, err, err, current->comm); |
| bail: |
| return err; |
| } |
| |
| static int fastrpc_unmap_on_dsp(struct fastrpc_file *fl, |
| uintptr_t raddr, uint64_t phys, size_t size, uint32_t flags) |
| { |
| struct fastrpc_ioctl_invoke_crc ioctl; |
| remote_arg_t ra[1] = {}; |
| int err = 0; |
| struct { |
| int pid; |
| uintptr_t vaddrout; |
| size_t size; |
| } inargs; |
| |
| inargs.pid = fl->tgid; |
| inargs.size = size; |
| inargs.vaddrout = raddr; |
| ra[0].buf.pv = (void *)&inargs; |
| ra[0].buf.len = sizeof(inargs); |
| |
| ioctl.inv.handle = FASTRPC_STATIC_HANDLE_PROCESS_GROUP; |
| if (fl->apps->compat) |
| ioctl.inv.sc = REMOTE_SCALARS_MAKE(5, 1, 0); |
| else |
| ioctl.inv.sc = REMOTE_SCALARS_MAKE(3, 1, 0); |
| ioctl.inv.pra = ra; |
| ioctl.fds = NULL; |
| ioctl.attrs = NULL; |
| ioctl.crc = NULL; |
| VERIFY(err, 0 == (err = fastrpc_internal_invoke(fl, |
| FASTRPC_MODE_PARALLEL, 1, &ioctl))); |
| if (err) |
| goto bail; |
| bail: |
| return err; |
| } |
| |
| static int fastrpc_mmap_on_dsp(struct fastrpc_file *fl, uint32_t flags, |
| uintptr_t va, uint64_t phys, |
| size_t size, uintptr_t *raddr) |
| { |
| struct fastrpc_ioctl_invoke_crc ioctl; |
| struct fastrpc_apps *me = &gfa; |
| struct smq_phy_page page; |
| int num = 1; |
| remote_arg_t ra[3]; |
| int err = 0; |
| struct { |
| int pid; |
| uint32_t flags; |
| uintptr_t vaddrin; |
| int num; |
| } inargs; |
| struct { |
| uintptr_t vaddrout; |
| } routargs; |
| |
| inargs.pid = fl->tgid; |
| inargs.vaddrin = (uintptr_t)va; |
| inargs.flags = flags; |
| inargs.num = fl->apps->compat ? num * sizeof(page) : num; |
| ra[0].buf.pv = (void *)&inargs; |
| ra[0].buf.len = sizeof(inargs); |
| page.addr = phys; |
| page.size = size; |
| ra[1].buf.pv = (void *)&page; |
| ra[1].buf.len = num * sizeof(page); |
| |
| ra[2].buf.pv = (void *)&routargs; |
| ra[2].buf.len = sizeof(routargs); |
| |
| ioctl.inv.handle = FASTRPC_STATIC_HANDLE_PROCESS_GROUP; |
| if (fl->apps->compat) |
| ioctl.inv.sc = REMOTE_SCALARS_MAKE(4, 2, 1); |
| else |
| ioctl.inv.sc = REMOTE_SCALARS_MAKE(2, 2, 1); |
| ioctl.inv.pra = ra; |
| ioctl.fds = NULL; |
| ioctl.attrs = NULL; |
| ioctl.crc = NULL; |
| VERIFY(err, 0 == (err = fastrpc_internal_invoke(fl, |
| FASTRPC_MODE_PARALLEL, 1, &ioctl))); |
| *raddr = (uintptr_t)routargs.vaddrout; |
| if (err) |
| goto bail; |
| if (flags == ADSP_MMAP_REMOTE_HEAP_ADDR |
| && me->channel[fl->cid].rhvm.vmid) { |
| err = hyp_assign_phys(phys, (uint64_t)size, |
| hlosvm, 1, me->channel[fl->cid].rhvm.vmid, |
| me->channel[fl->cid].rhvm.vmperm, |
| me->channel[fl->cid].rhvm.vmcount); |
| if (err) { |
| pr_err("adsprpc: %s: %s: rh hyp assign failed with %d for phys 0x%llx, size %zd\n", |
| __func__, current->comm, |
| err, phys, size); |
| err = fastrpc_unmap_on_dsp(fl, |
| *raddr, phys, size, flags); |
| if (err) { |
| pr_err("adsprpc: %s: %s: failed to unmap %d for phys 0x%llx, size %zd\n", |
| __func__, current->comm, |
| err, phys, size); |
| } |
| goto bail; |
| } |
| } |
| bail: |
| return err; |
| } |
| |
| static int fastrpc_munmap_on_dsp_rh(struct fastrpc_file *fl, uint64_t phys, |
| size_t size, uint32_t flags) |
| { |
| int err = 0; |
| struct fastrpc_apps *me = &gfa; |
| int tgid = 0; |
| int destVM[1] = {VMID_HLOS}; |
| int destVMperm[1] = {PERM_READ | PERM_WRITE | PERM_EXEC}; |
| |
| if (flags == ADSP_MMAP_HEAP_ADDR) { |
| struct fastrpc_ioctl_invoke_crc ioctl; |
| remote_arg_t ra[2]; |
| int err = 0; |
| struct { |
| uint8_t skey; |
| } routargs; |
| |
| if (fl == NULL) |
| goto bail; |
| tgid = fl->tgid; |
| ra[0].buf.pv = (void *)&tgid; |
| ra[0].buf.len = sizeof(tgid); |
| |
| ra[1].buf.pv = (void *)&routargs; |
| ra[1].buf.len = sizeof(routargs); |
| |
| ioctl.inv.handle = FASTRPC_STATIC_HANDLE_PROCESS_GROUP; |
| ioctl.inv.sc = REMOTE_SCALARS_MAKE(9, 1, 1); |
| ioctl.inv.pra = ra; |
| ioctl.fds = NULL; |
| ioctl.attrs = NULL; |
| ioctl.crc = NULL; |
| |
| VERIFY(err, 0 == (err = fastrpc_internal_invoke(fl, |
| FASTRPC_MODE_PARALLEL, 1, &ioctl))); |
| if (err) |
| goto bail; |
| } else if (flags == ADSP_MMAP_REMOTE_HEAP_ADDR) { |
| if (me->channel[fl->cid].rhvm.vmid) { |
| err = hyp_assign_phys(phys, |
| (uint64_t)size, |
| me->channel[fl->cid].rhvm.vmid, |
| me->channel[fl->cid].rhvm.vmcount, |
| destVM, destVMperm, 1); |
| if (err) { |
| pr_err("adsprpc: %s: %s: rh hyp unassign failed with %d for phys 0x%llx, size %zd\n", |
| __func__, current->comm, |
| err, phys, size); |
| goto bail; |
| } |
| } |
| } |
| |
| bail: |
| return err; |
| } |
| |
| static int fastrpc_munmap_on_dsp(struct fastrpc_file *fl, uintptr_t raddr, |
| uint64_t phys, size_t size, uint32_t flags) |
| { |
| int err = 0; |
| |
| VERIFY(err, 0 == (err = fastrpc_unmap_on_dsp(fl, raddr, phys, |
| size, flags))); |
| if (err) |
| goto bail; |
| if (flags == ADSP_MMAP_HEAP_ADDR || |
| flags == ADSP_MMAP_REMOTE_HEAP_ADDR) { |
| VERIFY(err, !fastrpc_munmap_on_dsp_rh(fl, phys, size, flags)); |
| if (err) |
| goto bail; |
| } |
| bail: |
| return err; |
| } |
| |
| static int fastrpc_mmap_remove_ssr(struct fastrpc_file *fl) |
| { |
| struct fastrpc_mmap *match = NULL, *map = NULL; |
| struct hlist_node *n = NULL; |
| int err = 0, ret = 0; |
| struct fastrpc_apps *me = &gfa; |
| struct ramdump_segment *ramdump_segments_rh = NULL; |
| |
| VERIFY(err, fl->cid == RH_CID); |
| if (err) |
| goto bail; |
| do { |
| match = NULL; |
| spin_lock(&me->hlock); |
| hlist_for_each_entry_safe(map, n, &me->maps, hn) { |
| match = map; |
| hlist_del_init(&map->hn); |
| break; |
| } |
| spin_unlock(&me->hlock); |
| |
| if (match) { |
| err = fastrpc_munmap_on_dsp_rh(fl, match->phys, |
| match->size, match->flags); |
| if (err) |
| goto bail; |
| if (me->channel[RH_CID].ramdumpenabled) { |
| ramdump_segments_rh = kcalloc(1, |
| sizeof(struct ramdump_segment), GFP_KERNEL); |
| if (ramdump_segments_rh) { |
| ramdump_segments_rh->address = |
| match->phys; |
| ramdump_segments_rh->size = match->size; |
| ret = do_elf_ramdump( |
| me->channel[RH_CID].rh_dump_dev, |
| ramdump_segments_rh, 1); |
| if (ret < 0) |
| pr_err("adsprpc: %s: unable to dump heap (err %d)\n", |
| __func__, ret); |
| kfree(ramdump_segments_rh); |
| } |
| } |
| fastrpc_mmap_free(match, 0); |
| } |
| } while (match); |
| bail: |
| if (err && match) |
| fastrpc_mmap_add(match); |
| return err; |
| } |
| |
| static int fastrpc_mmap_remove_pdr(struct fastrpc_file *fl) |
| { |
| struct fastrpc_apps *me = &gfa; |
| int session = 0, err = 0, cid = -1; |
| |
| err = fastrpc_get_spd_session(fl->servloc_name, |
| &session, &cid); |
| if (err) |
| goto bail; |
| VERIFY(err, cid == fl->cid); |
| if (err) |
| goto bail; |
| if (!me->channel[fl->cid].spd[session].ispdup && |
| me->channel[fl->cid].spd[session].pdrhandle) { |
| err = -ENOTCONN; |
| goto bail; |
| } |
| if (me->channel[fl->cid].spd[session].pdrcount != |
| me->channel[fl->cid].spd[session].prevpdrcount) { |
| err = fastrpc_mmap_remove_ssr(fl); |
| if (err) |
| pr_warn("adsprpc: %s: %s: failed to unmap remote heap (err %d)\n", |
| __func__, current->comm, err); |
| me->channel[fl->cid].spd[session].prevpdrcount = |
| me->channel[fl->cid].spd[session].pdrcount; |
| } |
| bail: |
| return err; |
| } |
| |
| static inline void get_fastrpc_ioctl_mmap_64( |
| struct fastrpc_ioctl_mmap_64 *mmap64, |
| struct fastrpc_ioctl_mmap *immap) |
| { |
| immap->fd = mmap64->fd; |
| immap->flags = mmap64->flags; |
| immap->vaddrin = (uintptr_t)mmap64->vaddrin; |
| immap->size = mmap64->size; |
| } |
| |
| static inline void put_fastrpc_ioctl_mmap_64( |
| struct fastrpc_ioctl_mmap_64 *mmap64, |
| struct fastrpc_ioctl_mmap *immap) |
| { |
| mmap64->vaddrout = (uint64_t)immap->vaddrout; |
| } |
| |
| static inline void get_fastrpc_ioctl_munmap_64( |
| struct fastrpc_ioctl_munmap_64 *munmap64, |
| struct fastrpc_ioctl_munmap *imunmap) |
| { |
| imunmap->vaddrout = (uintptr_t)munmap64->vaddrout; |
| imunmap->size = munmap64->size; |
| } |
| |
| static int fastrpc_internal_munmap(struct fastrpc_file *fl, |
| struct fastrpc_ioctl_munmap *ud) |
| { |
| int err = 0; |
| struct fastrpc_mmap *map = NULL; |
| struct fastrpc_buf *rbuf = NULL, *free = NULL; |
| struct hlist_node *n; |
| |
| VERIFY(err, fl->dsp_proc_init == 1); |
| if (err) { |
| pr_err("adsprpc: ERROR: %s: user application %s trying to unmap without initialization\n", |
| __func__, current->comm); |
| err = EBADR; |
| return err; |
| } |
| mutex_lock(&fl->internal_map_mutex); |
| |
| spin_lock(&fl->hlock); |
| hlist_for_each_entry_safe(rbuf, n, &fl->remote_bufs, hn_rem) { |
| if (rbuf->raddr && ((rbuf->flags == ADSP_MMAP_ADD_PAGES) || |
| (rbuf->flags == ADSP_MMAP_ADD_PAGES_LLC))) { |
| if ((rbuf->raddr == ud->vaddrout) && |
| (rbuf->size == ud->size)) { |
| free = rbuf; |
| break; |
| } |
| } |
| } |
| spin_unlock(&fl->hlock); |
| |
| if (free) { |
| VERIFY(err, !fastrpc_munmap_on_dsp(fl, free->raddr, |
| free->phys, free->size, free->flags)); |
| if (err) |
| goto bail; |
| fastrpc_buf_free(rbuf, 0); |
| mutex_unlock(&fl->internal_map_mutex); |
| return err; |
| } |
| |
| mutex_lock(&fl->map_mutex); |
| VERIFY(err, !fastrpc_mmap_remove(fl, ud->vaddrout, ud->size, &map)); |
| mutex_unlock(&fl->map_mutex); |
| if (err) |
| goto bail; |
| VERIFY(err, !fastrpc_munmap_on_dsp(fl, map->raddr, |
| map->phys, map->size, map->flags)); |
| if (err) |
| goto bail; |
| mutex_lock(&fl->map_mutex); |
| fastrpc_mmap_free(map, 0); |
| mutex_unlock(&fl->map_mutex); |
| bail: |
| if (err && map) { |
| mutex_lock(&fl->map_mutex); |
| fastrpc_mmap_add(map); |
| mutex_unlock(&fl->map_mutex); |
| } |
| mutex_unlock(&fl->internal_map_mutex); |
| return err; |
| } |
| |
| /* |
| * fastrpc_internal_munmap_fd can only be used for buffers |
| * mapped with persist attributes. This can only be called |
| * once for any persist buffer |
| */ |
| static int fastrpc_internal_munmap_fd(struct fastrpc_file *fl, |
| struct fastrpc_ioctl_munmap_fd *ud) |
| { |
| int err = 0; |
| struct fastrpc_mmap *map = NULL; |
| |
| VERIFY(err, (fl && ud)); |
| if (err) |
| return err; |
| VERIFY(err, fl->dsp_proc_init == 1); |
| if (err) { |
| pr_err("adsprpc: ERROR: %s: user application %s trying to unmap without initialization\n", |
| __func__, current->comm); |
| err = EBADR; |
| return err; |
| } |
| mutex_lock(&fl->internal_map_mutex); |
| mutex_lock(&fl->map_mutex); |
| if (fastrpc_mmap_find(fl, ud->fd, ud->va, ud->len, 0, 0, &map)) { |
| pr_err("adsprpc: mapping not found to unmap fd 0x%x, va 0x%llx, len 0x%x\n", |
| ud->fd, (unsigned long long)ud->va, |
| (unsigned int)ud->len); |
| err = -1; |
| mutex_unlock(&fl->map_mutex); |
| goto bail; |
| } |
| if (map && (map->attr & FASTRPC_ATTR_KEEP_MAP)) { |
| map->attr = map->attr & (~FASTRPC_ATTR_KEEP_MAP); |
| fastrpc_mmap_free(map, 0); |
| } |
| mutex_unlock(&fl->map_mutex); |
| bail: |
| mutex_unlock(&fl->internal_map_mutex); |
| return err; |
| } |
| |
| |
| static int fastrpc_internal_mmap(struct fastrpc_file *fl, |
| struct fastrpc_ioctl_mmap *ud) |
| { |
| struct fastrpc_mmap *map = NULL; |
| struct fastrpc_buf *rbuf = NULL; |
| unsigned long dma_attr = 0; |
| uintptr_t raddr = 0; |
| int err = 0; |
| |
| VERIFY(err, fl->dsp_proc_init == 1); |
| if (err) { |
| pr_err("adsprpc: ERROR: %s: user application %s trying to map without initialization\n", |
| __func__, current->comm); |
| err = EBADR; |
| return err; |
| } |
| mutex_lock(&fl->internal_map_mutex); |
| if ((ud->flags == ADSP_MMAP_ADD_PAGES) || |
| (ud->flags == ADSP_MMAP_ADD_PAGES_LLC)) { |
| if (ud->vaddrin) { |
| err = EINVAL; |
| pr_err("adsprpc: %s: %s: ERROR: adding user allocated pages is not supported\n", |
| current->comm, __func__); |
| goto bail; |
| } |
| dma_attr = DMA_ATTR_EXEC_MAPPING | |
| DMA_ATTR_DELAYED_UNMAP | |
| DMA_ATTR_NO_KERNEL_MAPPING | |
| DMA_ATTR_FORCE_NON_COHERENT; |
| if (ud->flags == ADSP_MMAP_ADD_PAGES_LLC) |
| dma_attr |= DMA_ATTR_IOMMU_USE_UPSTREAM_HINT; |
| err = fastrpc_buf_alloc(fl, ud->size, dma_attr, ud->flags, |
| 1, &rbuf); |
| if (err) |
| goto bail; |
| err = fastrpc_mmap_on_dsp(fl, ud->flags, 0, |
| rbuf->phys, rbuf->size, &raddr); |
| if (err) |
| goto bail; |
| rbuf->raddr = raddr; |
| } else { |
| uintptr_t va_to_dsp; |
| |
| mutex_lock(&fl->map_mutex); |
| VERIFY(err, !fastrpc_mmap_create(fl, ud->fd, 0, |
| (uintptr_t)ud->vaddrin, ud->size, |
| ud->flags, &map)); |
| mutex_unlock(&fl->map_mutex); |
| if (err) |
| goto bail; |
| |
| if (ud->flags == ADSP_MMAP_HEAP_ADDR || |
| ud->flags == ADSP_MMAP_REMOTE_HEAP_ADDR) |
| va_to_dsp = 0; |
| else |
| va_to_dsp = (uintptr_t)map->va; |
| VERIFY(err, 0 == fastrpc_mmap_on_dsp(fl, ud->flags, va_to_dsp, |
| map->phys, map->size, &raddr)); |
| if (err) |
| goto bail; |
| map->raddr = raddr; |
| } |
| ud->vaddrout = raddr; |
| bail: |
| if (err) { |
| if (map) { |
| mutex_lock(&fl->map_mutex); |
| fastrpc_mmap_free(map, 0); |
| mutex_unlock(&fl->map_mutex); |
| } |
| if (!IS_ERR_OR_NULL(rbuf)) |
| fastrpc_buf_free(rbuf, 0); |
| } |
| mutex_unlock(&fl->internal_map_mutex); |
| return err; |
| } |
| |
| static void fastrpc_context_list_dtor(struct fastrpc_file *fl); |
| |
| static int fastrpc_session_alloc_locked(struct fastrpc_channel_ctx *chan, |
| int secure, struct fastrpc_session_ctx **session) |
| { |
| struct fastrpc_apps *me = &gfa; |
| uint64_t idx = 0; |
| int err = 0; |
| |
| if (chan->sesscount) { |
| for (idx = 0; idx < chan->sesscount; ++idx) { |
| if (!chan->session[idx].used && |
| chan->session[idx].smmu.secure == secure) { |
| chan->session[idx].used = 1; |
| break; |
| } |
| } |
| if (idx >= chan->sesscount) { |
| err = EUSERS; |
| pr_err("adsprpc: ERROR %d: %s: max concurrent sessions limit (%d) already reached on %s\n", |
| err, __func__, chan->sesscount, chan->subsys); |
| goto bail; |
| } |
| chan->session[idx].smmu.faults = 0; |
| } else { |
| VERIFY(err, me->dev != NULL); |
| if (err) { |
| err = -ECONNREFUSED; |
| goto bail; |
| } |
| chan->session[0].dev = me->dev; |
| chan->session[0].smmu.dev = me->dev; |
| } |
| |
| *session = &chan->session[idx]; |
| bail: |
| return err; |
| } |
| |
| static inline int get_cid_from_rpdev(struct rpmsg_device *rpdev) |
| { |
| int err = 0, cid = -1; |
| |
| VERIFY(err, !IS_ERR_OR_NULL(rpdev)); |
| if (err) |
| return -EINVAL; |
| |
| if (!strcmp(rpdev->dev.parent->of_node->name, "cdsp")) |
| cid = CDSP_DOMAIN_ID; |
| else if (!strcmp(rpdev->dev.parent->of_node->name, "adsp")) |
| cid = ADSP_DOMAIN_ID; |
| else if (!strcmp(rpdev->dev.parent->of_node->name, "dsps")) |
| cid = SDSP_DOMAIN_ID; |
| else if (!strcmp(rpdev->dev.parent->of_node->name, "mdsp")) |
| cid = MDSP_DOMAIN_ID; |
| |
| return cid; |
| } |
| |
| static int fastrpc_rpmsg_probe(struct rpmsg_device *rpdev) |
| { |
| int err = 0; |
| int cid = -1; |
| |
| VERIFY(err, !IS_ERR_OR_NULL(rpdev)); |
| if (err) |
| return -EINVAL; |
| |
| cid = get_cid_from_rpdev(rpdev); |
| VERIFY(err, cid >= ADSP_DOMAIN_ID && cid < NUM_CHANNELS); |
| if (err) |
| goto bail; |
| mutex_lock(&gcinfo[cid].rpmsg_mutex); |
| gcinfo[cid].rpdev = rpdev; |
| mutex_unlock(&gcinfo[cid].rpmsg_mutex); |
| pr_info("adsprpc: %s: opened rpmsg channel for %s\n", |
| __func__, gcinfo[cid].subsys); |
| |
| #if IS_ENABLED(CONFIG_ADSPRPC_DEBUG) |
| if (!gcinfo[cid].ipc_log_ctx) |
| gcinfo[cid].ipc_log_ctx = |
| ipc_log_context_create(FASTRPC_GLINK_LOG_PAGES, |
| gcinfo[cid].name, 0); |
| if (!gcinfo[cid].ipc_log_ctx) |
| pr_warn("adsprpc: %s: failed to create IPC log context for %s\n", |
| __func__, gcinfo[cid].subsys); |
| else |
| pr_info("adsprpc: %s: enabled IPC logging for %s\n", |
| __func__, gcinfo[cid].subsys); |
| #endif |
| bail: |
| if (err) |
| pr_err("adsprpc: rpmsg probe of %s cid %d failed\n", |
| rpdev->dev.parent->of_node->name, cid); |
| return err; |
| } |
| |
| static void fastrpc_rpmsg_remove(struct rpmsg_device *rpdev) |
| { |
| int err = 0; |
| int cid = -1; |
| struct fastrpc_apps *me = &gfa; |
| |
| VERIFY(err, !IS_ERR_OR_NULL(rpdev)); |
| if (err) |
| return; |
| |
| cid = get_cid_from_rpdev(rpdev); |
| VERIFY(err, cid >= ADSP_DOMAIN_ID && cid < NUM_CHANNELS); |
| if (err) |
| goto bail; |
| mutex_lock(&gcinfo[cid].rpmsg_mutex); |
| gcinfo[cid].rpdev = NULL; |
| mutex_unlock(&gcinfo[cid].rpmsg_mutex); |
| fastrpc_notify_drivers(me, cid); |
| pr_info("adsprpc: %s: closed rpmsg channel of %s\n", |
| __func__, gcinfo[cid].subsys); |
| bail: |
| if (err) |
| pr_err("adsprpc: rpmsg remove of %s cid %d failed\n", |
| rpdev->dev.parent->of_node->name, cid); |
| } |
| |
| static int fastrpc_rpmsg_callback(struct rpmsg_device *rpdev, void *data, |
| int len, void *priv, u32 addr) |
| { |
| struct smq_invoke_rsp *rsp = (struct smq_invoke_rsp *)data; |
| struct smq_invoke_rspv2 *rspv2 = NULL; |
| struct fastrpc_apps *me = &gfa; |
| uint32_t index, rspFlags = 0, earlyWakeTime = 0; |
| int err = 0, cid = -1; |
| struct fastrpc_channel_ctx *chan = NULL; |
| unsigned long irq_flags = 0; |
| |
| cid = get_cid_from_rpdev(rpdev); |
| VERIFY(err, (cid >= ADSP_DOMAIN_ID && cid <= NUM_CHANNELS)); |
| if (err) |
| goto bail; |
| |
| chan = &me->channel[cid]; |
| VERIFY(err, (rsp && len >= sizeof(*rsp))); |
| if (err) |
| goto bail; |
| |
| if (len >= sizeof(struct smq_invoke_rspv2)) |
| rspv2 = (struct smq_invoke_rspv2 *)data; |
| |
| if (rspv2) { |
| earlyWakeTime = rspv2->earlyWakeTime; |
| rspFlags = rspv2->flags; |
| } |
| trace_fastrpc_rpmsg_response(cid, rsp->ctx, |
| rsp->retval, rspFlags, earlyWakeTime); |
| #if IS_ENABLED(CONFIG_ADSPRPC_DEBUG) |
| if (cid >= ADSP_DOMAIN_ID && cid < NUM_CHANNELS) { |
| LOG_FASTRPC_GLINK_MSG(gcinfo[cid].ipc_log_ctx, |
| "recvd pkt %pK (sz %d): ctx 0x%llx, retVal %d, flags %u, earlyWake %u", |
| data, len, rsp->ctx, rsp->retval, rspFlags, earlyWakeTime); |
| } |
| #endif |
| |
| index = (uint32_t)((rsp->ctx & FASTRPC_CTXID_MASK) >> 4); |
| VERIFY(err, index < FASTRPC_CTX_MAX); |
| if (err) |
| goto bail; |
| |
| spin_lock_irqsave(&chan->ctxlock, irq_flags); |
| VERIFY(err, !IS_ERR_OR_NULL(chan->ctxtable[index])); |
| if (err) |
| goto bail_unlock; |
| |
| VERIFY(err, ((chan->ctxtable[index]->ctxid == |
| (rsp->ctx & ~CONTEXT_PD_CHECK)) && |
| chan->ctxtable[index]->magic == |
| FASTRPC_CTX_MAGIC)); |
| if (err) |
| goto bail_unlock; |
| |
| if (rspv2) { |
| VERIFY(err, rspv2->version == FASTRPC_RSP_VERSION2); |
| if (err) |
| goto bail_unlock; |
| } |
| context_notify_user(chan->ctxtable[index], rsp->retval, |
| rspFlags, earlyWakeTime); |
| bail_unlock: |
| spin_unlock_irqrestore(&chan->ctxlock, irq_flags); |
| bail: |
| if (err) |
| pr_err("adsprpc: ERROR: %s: invalid response (data %pK, len %d) from remote subsystem (err %d)\n", |
| __func__, data, len, err); |
| |
| return err; |
| } |
| |
| static int fastrpc_session_alloc(struct fastrpc_channel_ctx *chan, int secure, |
| struct fastrpc_session_ctx **session) |
| { |
| int err = 0; |
| |
| mutex_lock(&chan->smd_mutex); |
| if (!*session) |
| err = fastrpc_session_alloc_locked(chan, secure, session); |
| mutex_unlock(&chan->smd_mutex); |
| return err; |
| } |
| |
| static void fastrpc_session_free(struct fastrpc_channel_ctx *chan, |
| struct fastrpc_session_ctx *session) |
| { |
| mutex_lock(&chan->smd_mutex); |
| session->used = 0; |
| mutex_unlock(&chan->smd_mutex); |
| } |
| |
| static int fastrpc_file_free(struct fastrpc_file *fl) |
| { |
| struct hlist_node *n = NULL; |
| struct fastrpc_mmap *map = NULL, *lmap = NULL; |
| struct fastrpc_perf *perf = NULL, *fperf = NULL; |
| int cid; |
| |
| if (!fl) |
| return 0; |
| cid = fl->cid; |
| |
| (void)fastrpc_release_current_dsp_process(fl); |
| |
| spin_lock(&fl->apps->hlock); |
| hlist_del_init(&fl->hn); |
| spin_unlock(&fl->apps->hlock); |
| kfree(fl->debug_buf); |
| |
| if (!fl->sctx) { |
| kfree(fl); |
| return 0; |
| } |
| spin_lock(&fl->hlock); |
| fl->file_close = 1; |
| spin_unlock(&fl->hlock); |
| if (!IS_ERR_OR_NULL(fl->init_mem)) |
| fastrpc_buf_free(fl->init_mem, 0); |
| fastrpc_context_list_dtor(fl); |
| fastrpc_cached_buf_list_free(fl); |
| mutex_lock(&fl->map_mutex); |
| do { |
| lmap = NULL; |
| hlist_for_each_entry_safe(map, n, &fl->maps, hn) { |
| hlist_del_init(&map->hn); |
| lmap = map; |
| break; |
| } |
| fastrpc_mmap_free(lmap, 1); |
| } while (lmap); |
| mutex_unlock(&fl->map_mutex); |
| |
| if (fl->sctx) |
| fastrpc_session_free(&fl->apps->channel[cid], fl->sctx); |
| if (fl->secsctx) |
| fastrpc_session_free(&fl->apps->channel[cid], fl->secsctx); |
| |
| mutex_lock(&fl->perf_mutex); |
| do { |
| struct hlist_node *pn = NULL; |
| |
| fperf = NULL; |
| hlist_for_each_entry_safe(perf, pn, &fl->perf, hn) { |
| hlist_del_init(&perf->hn); |
| fperf = perf; |
| break; |
| } |
| kfree(fperf); |
| } while (fperf); |
| fastrpc_remote_buf_list_free(fl); |
| mutex_unlock(&fl->perf_mutex); |
| mutex_destroy(&fl->perf_mutex); |
| mutex_destroy(&fl->map_mutex); |
| mutex_destroy(&fl->internal_map_mutex); |
| kfree(fl); |
| return 0; |
| } |
| |
| static int fastrpc_device_release(struct inode *inode, struct file *file) |
| { |
| struct fastrpc_file *fl = (struct fastrpc_file *)file->private_data; |
| |
| if (fl) { |
| if (fl->qos_request && pm_qos_request_active(&fl->pm_qos_req)) |
| pm_qos_remove_request(&fl->pm_qos_req); |
| if (fl->debugfs_file != NULL) |
| debugfs_remove(fl->debugfs_file); |
| fastrpc_file_free(fl); |
| file->private_data = NULL; |
| } |
| return 0; |
| } |
| |
| static int fastrpc_debugfs_open(struct inode *inode, struct file *filp) |
| { |
| filp->private_data = inode->i_private; |
| return 0; |
| } |
| |
| static ssize_t fastrpc_debugfs_read(struct file *filp, char __user *buffer, |
| size_t count, loff_t *position) { |
| struct fastrpc_apps *me = &gfa; |
| struct fastrpc_file *fl = filp->private_data; |
| struct hlist_node *n; |
| struct fastrpc_buf *buf = NULL; |
| struct fastrpc_mmap *map = NULL; |
| struct fastrpc_mmap *gmaps = NULL; |
| struct smq_invoke_ctx *ictx = NULL; |
| struct fastrpc_channel_ctx *chan = NULL; |
| unsigned int len = 0; |
| int i, j, sess_used = 0, ret = 0; |
| char *fileinfo = NULL; |
| char single_line[UL_SIZE] = "----------------"; |
| char title[UL_SIZE] = "========================="; |
| |
| fileinfo = kzalloc(DEBUGFS_SIZE, GFP_KERNEL); |
| if (!fileinfo) |
| goto bail; |
| if (fl == NULL) { |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "\n%s %s %s\n", title, " CHANNEL INFO ", title); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%-7s|%-10s|%-14s|%-9s|%-13s\n", |
| "subsys", "sesscount", "issubsystemup", |
| "ssrcount", "session_used"); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "-%s%s%s%s-\n", single_line, single_line, |
| single_line, single_line); |
| for (i = 0; i < NUM_CHANNELS; i++) { |
| sess_used = 0; |
| chan = &gcinfo[i]; |
| len += scnprintf(fileinfo + len, |
| DEBUGFS_SIZE - len, "%-7s", chan->subsys); |
| len += scnprintf(fileinfo + len, |
| DEBUGFS_SIZE - len, "|%-10u", |
| chan->sesscount); |
| len += scnprintf(fileinfo + len, |
| DEBUGFS_SIZE - len, "|%-14d", |
| chan->issubsystemup); |
| len += scnprintf(fileinfo + len, |
| DEBUGFS_SIZE - len, "|%-9u", |
| chan->ssrcount); |
| for (j = 0; j < chan->sesscount; j++) { |
| sess_used += chan->session[j].used; |
| } |
| len += scnprintf(fileinfo + len, |
| DEBUGFS_SIZE - len, "|%-13d\n", sess_used); |
| } |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "\n%s%s%s\n", "=============", |
| " CMA HEAP ", "=============="); |
| len += scnprintf(fileinfo + len, |
| DEBUGFS_SIZE - len, "%-20s|%-20s\n", "addr", "size"); |
| len += scnprintf(fileinfo + len, |
| DEBUGFS_SIZE - len, "--%s%s---\n", |
| single_line, single_line); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "0x%-18llX", me->range.addr); |
| len += scnprintf(fileinfo + len, |
| DEBUGFS_SIZE - len, "|0x%-18llX\n", me->range.size); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "\n==========%s %s %s===========\n", |
| title, " GMAPS ", title); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%-20s|%-20s|%-20s|%-20s\n", |
| "fd", "phys", "size", "va"); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s%s%s%s%s\n", single_line, single_line, |
| single_line, single_line, single_line); |
| hlist_for_each_entry_safe(gmaps, n, &me->maps, hn) { |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%-20d|0x%-18llX|0x%-18X|0x%-20lX\n\n", |
| gmaps->fd, gmaps->phys, |
| (uint32_t)gmaps->size, |
| gmaps->va); |
| } |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%-20s|%-20s|%-20s|%-20s\n", |
| "len", "refs", "raddr", "flags"); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s%s%s%s%s\n", single_line, single_line, |
| single_line, single_line, single_line); |
| hlist_for_each_entry_safe(gmaps, n, &me->maps, hn) { |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "0x%-18X|%-20d|%-20lu|%-20u\n", |
| (uint32_t)gmaps->len, gmaps->refs, |
| gmaps->raddr, gmaps->flags); |
| } |
| } else { |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "\n%s %13s %d\n", "cid", ":", fl->cid); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s %12s %d\n", "tgid", ":", fl->tgid); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s %7s %d\n", "sessionid", ":", fl->sessionid); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s %8s %u\n", "ssrcount", ":", fl->ssrcount); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s %14s %d\n", "pd", ":", fl->pd); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s %9s %s\n", "servloc_name", ":", fl->servloc_name); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s %6s %d\n", "file_close", ":", fl->file_close); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s %9s %d\n", "profile", ":", fl->profile); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s %3s %d\n", "smmu.coherent", ":", |
| fl->sctx->smmu.coherent); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s %4s %d\n", "smmu.enabled", ":", |
| fl->sctx->smmu.enabled); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s %9s %d\n", "smmu.cb", ":", fl->sctx->smmu.cb); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s %5s %d\n", "smmu.secure", ":", |
| fl->sctx->smmu.secure); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s %5s %d\n", "smmu.faults", ":", |
| fl->sctx->smmu.faults); |
| |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "\n=======%s %s %s======\n", title, |
| " LIST OF MAPS ", title); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%-20s|%-20s|%-20s\n", "va", "phys", "size"); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s%s%s%s%s\n", |
| single_line, single_line, single_line, |
| single_line, single_line); |
| hlist_for_each_entry_safe(map, n, &fl->maps, hn) { |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "0x%-20lX|0x%-20llX|0x%-20zu\n\n", |
| map->va, map->phys, |
| map->size); |
| } |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%-20s|%-20s|%-20s|%-20s\n", |
| "len", "refs", |
| "raddr", "uncached"); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s%s%s%s%s\n", |
| single_line, single_line, single_line, |
| single_line, single_line); |
| hlist_for_each_entry_safe(map, n, &fl->maps, hn) { |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%-20zu|%-20d|0x%-20lX|%-20d\n\n", |
| map->len, map->refs, map->raddr, |
| map->uncached); |
| } |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%-20s|%-20s\n", "secure", "attr"); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s%s%s%s%s\n", |
| single_line, single_line, single_line, |
| single_line, single_line); |
| hlist_for_each_entry_safe(map, n, &fl->maps, hn) { |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%-20d|0x%-20lX\n\n", |
| map->secure, map->attr); |
| } |
| |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "\n======%s %s %s======\n", title, |
| " LIST OF BUFS ", title); |
| spin_lock(&fl->hlock); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%-19s|%-19s|%-19s\n", |
| "virt", "phys", "size"); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s%s%s%s%s\n", single_line, single_line, |
| single_line, single_line, single_line); |
| hlist_for_each_entry_safe(buf, n, &fl->cached_bufs, hn) { |
| len += scnprintf(fileinfo + len, |
| DEBUGFS_SIZE - len, |
| "0x%-17p|0x%-17llX|%-19zu\n", |
| buf->virt, (uint64_t)buf->phys, buf->size); |
| } |
| |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "\n%s %s %s\n", title, |
| " LIST OF PENDING SMQCONTEXTS ", title); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%-20s|%-10s|%-10s|%-10s|%-20s\n", |
| "sc", "pid", "tgid", "used", "ctxid"); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s%s%s%s%s\n", single_line, single_line, |
| single_line, single_line, single_line); |
| hlist_for_each_entry_safe(ictx, n, &fl->clst.pending, hn) { |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "0x%-18X|%-10d|%-10d|%-10zu|0x%-20llX\n\n", |
| ictx->sc, ictx->pid, ictx->tgid, |
| ictx->used, ictx->ctxid); |
| } |
| |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "\n%s %s %s\n", title, |
| " LIST OF INTERRUPTED SMQCONTEXTS ", title); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%-20s|%-10s|%-10s|%-10s|%-20s\n", |
| "sc", "pid", "tgid", "used", "ctxid"); |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%s%s%s%s%s\n", single_line, single_line, |
| single_line, single_line, single_line); |
| hlist_for_each_entry_safe(ictx, n, &fl->clst.interrupted, hn) { |
| len += scnprintf(fileinfo + len, DEBUGFS_SIZE - len, |
| "%-20u|%-20d|%-20d|%-20zu|0x%-20llX\n\n", |
| ictx->sc, ictx->pid, ictx->tgid, |
| ictx->used, ictx->ctxid); |
| } |
| spin_unlock(&fl->hlock); |
| } |
| if (len > DEBUGFS_SIZE) |
| len = DEBUGFS_SIZE; |
| ret = simple_read_from_buffer(buffer, count, position, fileinfo, len); |
| kfree(fileinfo); |
| bail: |
| return ret; |
| } |
| |
| static const struct file_operations debugfs_fops = { |
| .open = fastrpc_debugfs_open, |
| .read = fastrpc_debugfs_read, |
| }; |
| |
| static int fastrpc_channel_open(struct fastrpc_file *fl) |
| { |
| struct fastrpc_apps *me = &gfa; |
| int cid, err = 0; |
| |
| VERIFY(err, fl && fl->sctx && fl->cid >= 0 && fl->cid < NUM_CHANNELS); |
| if (err) { |
| pr_err("adsprpc: ERROR: %s: kernel session not initialized yet for %s\n", |
| __func__, current->comm); |
| err = EBADR; |
| return err; |
| } |
| cid = fl->cid; |
| |
| mutex_lock(&me->channel[cid].rpmsg_mutex); |
| VERIFY(err, NULL != me->channel[cid].rpdev); |
| if (err) { |
| err = -ENOTCONN; |
| mutex_unlock(&me->channel[cid].rpmsg_mutex); |
| goto bail; |
| } |
| mutex_unlock(&me->channel[cid].rpmsg_mutex); |
| |
| mutex_lock(&me->channel[cid].smd_mutex); |
| if (me->channel[cid].ssrcount != |
| me->channel[cid].prevssrcount) { |
| if (!me->channel[cid].issubsystemup) { |
| err = -ENOTCONN; |
| mutex_unlock(&me->channel[cid].smd_mutex); |
| goto bail; |
| } |
| } |
| fl->ssrcount = me->channel[cid].ssrcount; |
| |
| if (cid == ADSP_DOMAIN_ID && me->channel[cid].ssrcount != |
| me->channel[cid].prevssrcount) { |
| mutex_lock(&fl->map_mutex); |
| err = fastrpc_mmap_remove_ssr(fl); |
| if (err) |
| pr_warn("adsprpc: %s: %s: failed to unmap remote heap for %s (err %d)\n", |
| __func__, current->comm, |
| me->channel[cid].subsys, err); |
| mutex_unlock(&fl->map_mutex); |
| me->channel[cid].prevssrcount = |
| me->channel[cid].ssrcount; |
| } |
| mutex_unlock(&me->channel[cid].smd_mutex); |
| |
| bail: |
| return err; |
| } |
| |
| static inline void fastrpc_register_wakeup_source(struct device *dev, |
| const char *client_name, struct wakeup_source **device_wake_source) |
| { |
| struct wakeup_source *wake_source = NULL; |
| |
| wake_source = wakeup_source_register(dev, client_name); |
| if (IS_ERR_OR_NULL(wake_source)) { |
| pr_err("adsprpc: Error: %s: %s: wakeup_source_register failed for dev %s, client %s with err %ld\n", |
| __func__, current->comm, dev_name(dev), |
| client_name, PTR_ERR(wake_source)); |
| return; |
| } |
| *device_wake_source = wake_source; |
| } |
| |
| static int fastrpc_device_open(struct inode *inode, struct file *filp) |
| { |
| int err = 0; |
| struct fastrpc_file *fl = NULL; |
| struct fastrpc_apps *me = &gfa; |
| |
| /* |
| * Indicates the device node opened |
| * MINOR_NUM_DEV or MINOR_NUM_SECURE_DEV |
| */ |
| int dev_minor = MINOR(inode->i_rdev); |
| |
| VERIFY(err, ((dev_minor == MINOR_NUM_DEV) || |
| (dev_minor == MINOR_NUM_SECURE_DEV))); |
| if (err) { |
| pr_err("adsprpc: Invalid dev minor num %d\n", dev_minor); |
| return err; |
| } |
| |
| VERIFY(err, NULL != (fl = kzalloc(sizeof(*fl), GFP_KERNEL))); |
| if (err) |
| return err; |
| |
| context_list_ctor(&fl->clst); |
| spin_lock_init(&fl->hlock); |
| INIT_HLIST_HEAD(&fl->maps); |
| INIT_HLIST_HEAD(&fl->perf); |
| INIT_HLIST_HEAD(&fl->cached_bufs); |
| INIT_HLIST_HEAD(&fl->remote_bufs); |
| INIT_HLIST_NODE(&fl->hn); |
| fl->sessionid = 0; |
| fl->apps = me; |
| fl->mode = FASTRPC_MODE_SERIAL; |
| fl->cid = -1; |
| fl->dev_minor = dev_minor; |
| fl->init_mem = NULL; |
| memset(&fl->perf, 0, sizeof(fl->perf)); |
| fl->qos_request = 0; |
| fl->dsp_proc_init = 0; |
| filp->private_data = fl; |
| mutex_init(&fl->internal_map_mutex); |
| mutex_init(&fl->map_mutex); |
| spin_lock(&me->hlock); |
| hlist_add_head(&fl->hn, &me->drivers); |
| spin_unlock(&me->hlock); |
| mutex_init(&fl->perf_mutex); |
| return 0; |
| } |
| |
| static int fastrpc_set_process_info(struct fastrpc_file *fl) |
| { |
| int err = 0, buf_size = 0; |
| char strpid[PID_SIZE]; |
| |
| fl->tgid = current->tgid; |
| snprintf(strpid, PID_SIZE, "%d", current->pid); |
| if (debugfs_root) { |
| buf_size = strlen(current->comm) + strlen("_") |
| + strlen(strpid) + 1; |
| fl->debug_buf = kzalloc(buf_size, GFP_KERNEL); |
| if (!fl->debug_buf) { |
| err = -ENOMEM; |
| return err; |
| } |
| snprintf(fl->debug_buf, UL_SIZE, "%.10s%s%d", |
| current->comm, "_", current->pid); |
| fl->debugfs_file = debugfs_create_file(fl->debug_buf, 0644, |
| debugfs_root, fl, &debugfs_fops); |
| if (IS_ERR_OR_NULL(fl->debugfs_file)) { |
| pr_warn("Error: %s: %s: failed to create debugfs file %s\n", |
| current->comm, __func__, fl->debug_buf); |
| fl->debugfs_file = NULL; |
| kfree(fl->debug_buf); |
| fl->debug_buf = NULL; |
| } |
| } |
| return err; |
| } |
| |
| static int fastrpc_get_info(struct fastrpc_file *fl, uint32_t *info) |
| { |
| int err = 0; |
| uint32_t cid; |
| |
| VERIFY(err, fl != NULL); |
| if (err) |
| goto bail; |
| err = fastrpc_set_process_info(fl); |
| if (err) |
| goto bail; |
| if (fl->cid == -1) { |
| cid = *info; |
| VERIFY(err, cid < NUM_CHANNELS); |
| if (err) |
| goto bail; |
| /* Check to see if the device node is non-secure */ |
| if (fl->dev_minor == MINOR_NUM_DEV) { |
| /* |
| * For non secure device node check and make sure that |
| * the channel allows non-secure access |
| * If not, bail. Session will not start. |
| * cid will remain -1 and client will not be able to |
| * invoke any other methods without failure |
| */ |
| if (fl->apps->channel[cid].secure == SECURE_CHANNEL) { |
| err = -EACCES; |
| goto bail; |
| } |
| } |
| fl->cid = cid; |
| fl->ssrcount = fl->apps->channel[cid].ssrcount; |
| mutex_lock(&fl->apps->channel[cid].smd_mutex); |
| err = fastrpc_session_alloc_locked(&fl->apps->channel[cid], |
| 0, &fl->sctx); |
| mutex_unlock(&fl->apps->channel[cid].smd_mutex); |
| if (err) |
| goto bail; |
| } |
| VERIFY(err, fl->sctx != NULL); |
| if (err) |
| goto bail; |
| *info = (fl->sctx->smmu.enabled ? 1 : 0); |
| bail: |
| return err; |
| } |
| |
| static int fastrpc_internal_control(struct fastrpc_file *fl, |
| struct fastrpc_ioctl_control *cp) |
| { |
| int err = 0; |
| unsigned int latency; |
| cpumask_t mask; |
| struct fastrpc_apps *me = &gfa; |
| u32 len = me->silvercores.corecount, i = 0; |
| |
| VERIFY(err, !IS_ERR_OR_NULL(fl) && !IS_ERR_OR_NULL(fl->apps)); |
| if (err) |
| goto bail; |
| VERIFY(err, !IS_ERR_OR_NULL(cp)); |
| if (err) |
| goto bail; |
| |
| switch (cp->req) { |
| case FASTRPC_CONTROL_LATENCY: |
| latency = cp->lp.enable == FASTRPC_LATENCY_CTRL_ENB ? |
| fl->apps->latency : PM_QOS_DEFAULT_VALUE; |
| VERIFY(err, latency != 0); |
| if (err) |
| goto bail; |
| cpumask_clear(&mask); |
| for (i = 0; i < len; i++) |
| cpumask_set_cpu(me->silvercores.coreno[i], &mask); |
| fl->pm_qos_req.type = PM_QOS_REQ_AFFINE_CORES; |
| cpumask_copy(&fl->pm_qos_req.cpus_affine, &mask); |
| |
| if (!fl->qos_request) { |
| pm_qos_add_request(&fl->pm_qos_req, |
| PM_QOS_CPU_DMA_LATENCY, latency); |
| fl->qos_request = 1; |
| } else |
| pm_qos_update_request(&fl->pm_qos_req, latency); |
| |
| /* Ensure CPU feature map updated to DSP for early WakeUp */ |
| fastrpc_send_cpuinfo_to_dsp(fl); |
| break; |
| case FASTRPC_CONTROL_KALLOC: |
| cp->kalloc.kalloc_support = 1; |
| break; |
| case FASTRPC_CONTROL_WAKELOCK: |
| if (fl->dev_minor != MINOR_NUM_SECURE_DEV) { |
| pr_err("adsprpc: %s: %s: PM voting not allowed for non-secure device node %d\n", |
| current->comm, __func__, fl->dev_minor); |
| err = -EPERM; |
| goto bail; |
| } |
| fl->wake_enable = cp->wp.enable; |
| break; |
| case FASTRPC_CONTROL_PM: |
| if (!fl->wake_enable) { |
| /* Kernel PM voting not requested by this application */ |
| err = -EACCES; |
| goto bail; |
| } |
| if (cp->pm.timeout > MAX_PM_TIMEOUT_MS) |
| fl->ws_timeout = MAX_PM_TIMEOUT_MS; |
| else |
| fl->ws_timeout = cp->pm.timeout; |
| fastrpc_pm_awake(fl, gcinfo[fl->cid].secure); |
| break; |
| case FASTRPC_CONTROL_DSPPROCESS_CLEAN: |
| (void)fastrpc_release_current_dsp_process(fl); |
| break; |
| default: |
| err = -EBADRQC; |
| break; |
| } |
| bail: |
| return err; |
| } |
| |
| static int fastrpc_check_pd_status(struct fastrpc_file *fl, char *sloc_name) |
| { |
| int err = 0, session = -1, cid = -1; |
| struct fastrpc_apps *me = &gfa; |
| |
| if (fl->servloc_name && sloc_name |
| && !strcmp(fl->servloc_name, sloc_name)) { |
| err = fastrpc_get_spd_session(sloc_name, &session, &cid); |
| if (err || cid != fl->cid) |
| goto bail; |
| if (!me->channel[cid].spd[session].ispdup) { |
| err = -ENOTCONN; |
| goto bail; |
| } |
| } |
| bail: |
| return err; |
| } |
| |
| static int fastrpc_setmode(unsigned long ioctl_param, |
| struct fastrpc_file *fl) |
| { |
| int err = 0; |
| |
| switch ((uint32_t)ioctl_param) { |
| case FASTRPC_MODE_PARALLEL: |
| case FASTRPC_MODE_SERIAL: |
| fl->mode = (uint32_t)ioctl_param; |
| break; |
| case FASTRPC_MODE_PROFILE: |
| fl->profile = (uint32_t)ioctl_param; |
| break; |
| case FASTRPC_MODE_SESSION: |
| fl->sessionid = 1; |
| fl->tgid |= (1 << SESSION_ID_INDEX); |
| break; |
| default: |
| err = -ENOTTY; |
| break; |
| } |
| return err; |
| } |
| |
| static int fastrpc_getperf(struct fastrpc_ioctl_perf *ioctl_perf, |
| void *param, struct fastrpc_file *fl) |
| { |
| int err = 0; |
| |
| K_COPY_FROM_USER(err, 0, ioctl_perf, |
| param, sizeof(*ioctl_perf)); |
| if (err) |
| goto bail; |
| ioctl_perf->numkeys = PERF_KEY_MAX; |
| if (ioctl_perf->keys) { |
| char *keys = PERF_KEYS; |
| |
| K_COPY_TO_USER(err, 0, (void *)ioctl_perf->keys, |
| keys, strlen(keys)+1); |
| if (err) |
| goto bail; |
| } |
| if (ioctl_perf->data) { |
| struct fastrpc_perf *perf = NULL, *fperf = NULL; |
| struct hlist_node *n = NULL; |
| |
| mutex_lock(&fl->perf_mutex); |
| hlist_for_each_entry_safe(perf, n, &fl->perf, hn) { |
| if (perf->tid == current->pid) { |
| fperf = perf; |
| break; |
| } |
| } |
| |
| mutex_unlock(&fl->perf_mutex); |
| |
| if (fperf) { |
| K_COPY_TO_USER(err, 0, |
| (void *)ioctl_perf->data, fperf, |
| sizeof(*fperf) - sizeof(struct hlist_node)); |
| } |
| } |
| K_COPY_TO_USER(err, 0, param, ioctl_perf, sizeof(*ioctl_perf)); |
| if (err) |
| goto bail; |
| bail: |
| return err; |
| } |
| |
| static int fastrpc_control(struct fastrpc_ioctl_control *cp, |
| void *param, struct fastrpc_file *fl) |
| { |
| int err = 0; |
| |
| K_COPY_FROM_USER(err, 0, cp, param, |
| sizeof(*cp)); |
| if (err) |
| goto bail; |
| VERIFY(err, 0 == (err = fastrpc_internal_control(fl, cp))); |
| if (err) |
| goto bail; |
| if (cp->req == FASTRPC_CONTROL_KALLOC) { |
| K_COPY_TO_USER(err, 0, param, cp, sizeof(*cp)); |
| if (err) |
| goto bail; |
| } |
| bail: |
| return err; |
| } |
| |
| static int fastrpc_get_dsp_info(struct fastrpc_ioctl_dsp_capabilities *dsp_cap, |
| void *param, struct fastrpc_file *fl) |
| { |
| int err = 0; |
| |
| K_COPY_FROM_USER(err, 0, dsp_cap, param, |
| sizeof(struct fastrpc_ioctl_dsp_capabilities)); |
| VERIFY(err, dsp_cap->domain < NUM_CHANNELS); |
| if (err) |
| goto bail; |
| |
| err = fastrpc_get_info_from_kernel(dsp_cap, fl); |
| if (err) |
| goto bail; |
| K_COPY_TO_USER(err, 0, param, dsp_cap, |
| sizeof(struct fastrpc_ioctl_dsp_capabilities)); |
| bail: |
| return err; |
| } |
| |
| static long fastrpc_device_ioctl(struct file *file, unsigned int ioctl_num, |
| unsigned long ioctl_param) |
| { |
| union { |
| struct fastrpc_ioctl_invoke_crc inv; |
| struct fastrpc_ioctl_mmap mmap; |
| struct fastrpc_ioctl_mmap_64 mmap64; |
| struct fastrpc_ioctl_munmap munmap; |
| struct fastrpc_ioctl_munmap_64 munmap64; |
| struct fastrpc_ioctl_munmap_fd munmap_fd; |
| struct fastrpc_ioctl_init_attrs init; |
| struct fastrpc_ioctl_perf perf; |
| struct fastrpc_ioctl_control cp; |
| struct fastrpc_ioctl_dsp_capabilities dsp_cap; |
| } p; |
| union { |
| struct fastrpc_ioctl_mmap mmap; |
| struct fastrpc_ioctl_munmap munmap; |
| } i; |
| void *param = (char *)ioctl_param; |
| struct fastrpc_file *fl = (struct fastrpc_file *)file->private_data; |
| int size = 0, err = 0; |
| uint32_t info; |
| |
| p.inv.fds = NULL; |
| p.inv.attrs = NULL; |
| p.inv.crc = NULL; |
| |
| err = fastrpc_check_pd_status(fl, |
| AUDIO_PDR_SERVICE_LOCATION_CLIENT_NAME); |
| if (err) |
| goto bail; |
| |
| spin_lock(&fl->hlock); |
| if (fl->file_close == 1) { |
| err = EBADF; |
| pr_warn("adsprpc: fastrpc_device_release is happening, So not sending any new requests to DSP\n"); |
| spin_unlock(&fl->hlock); |
| goto bail; |
| } |
| spin_unlock(&fl->hlock); |
| |
| switch (ioctl_num) { |
| case FASTRPC_IOCTL_INVOKE: |
| size = sizeof(struct fastrpc_ioctl_invoke); |
| /* fall through */ |
| case FASTRPC_IOCTL_INVOKE_FD: |
| if (!size) |
| size = sizeof(struct fastrpc_ioctl_invoke_fd); |
| /* fall through */ |
| case FASTRPC_IOCTL_INVOKE_ATTRS: |
| if (!size) |
| size = sizeof(struct fastrpc_ioctl_invoke_attrs); |
| /* fall through */ |
| case FASTRPC_IOCTL_INVOKE_CRC: |
| if (!size) |
| size = sizeof(struct fastrpc_ioctl_invoke_crc); |
| K_COPY_FROM_USER(err, 0, &p.inv, param, size); |
| if (err) |
| goto bail; |
| VERIFY(err, 0 == (err = fastrpc_internal_invoke(fl, fl->mode, |
| 0, &p.inv))); |
| if (err) |
| goto bail; |
| break; |
| case FASTRPC_IOCTL_MMAP: |
| K_COPY_FROM_USER(err, 0, &p.mmap, param, |
| sizeof(p.mmap)); |
| if (err) |
| goto bail; |
| VERIFY(err, 0 == (err = fastrpc_internal_mmap(fl, &p.mmap))); |
| if (err) |
| goto bail; |
| K_COPY_TO_USER(err, 0, param, &p.mmap, sizeof(p.mmap)); |
| if (err) |
| goto bail; |
| break; |
| case FASTRPC_IOCTL_MUNMAP: |
| K_COPY_FROM_USER(err, 0, &p.munmap, param, |
| sizeof(p.munmap)); |
| if (err) |
| goto bail; |
| VERIFY(err, 0 == (err = fastrpc_internal_munmap(fl, |
| &p.munmap))); |
| if (err) |
| goto bail; |
| break; |
| case FASTRPC_IOCTL_MMAP_64: |
| K_COPY_FROM_USER(err, 0, &p.mmap64, param, |
| sizeof(p.mmap64)); |
| if (err) |
| goto bail; |
| get_fastrpc_ioctl_mmap_64(&p.mmap64, &i.mmap); |
| VERIFY(err, 0 == (err = fastrpc_internal_mmap(fl, &i.mmap))); |
| if (err) |
| goto bail; |
| put_fastrpc_ioctl_mmap_64(&p.mmap64, &i.mmap); |
| K_COPY_TO_USER(err, 0, param, &p.mmap64, sizeof(p.mmap64)); |
| if (err) |
| goto bail; |
| break; |
| case FASTRPC_IOCTL_MUNMAP_64: |
| K_COPY_FROM_USER(err, 0, &p.munmap64, param, |
| sizeof(p.munmap64)); |
| if (err) |
| goto bail; |
| get_fastrpc_ioctl_munmap_64(&p.munmap64, &i.munmap); |
| VERIFY(err, 0 == (err = fastrpc_internal_munmap(fl, |
| &i.munmap))); |
| if (err) |
| goto bail; |
| break; |
| case FASTRPC_IOCTL_MUNMAP_FD: |
| K_COPY_FROM_USER(err, 0, &p.munmap_fd, param, |
| sizeof(p.munmap_fd)); |
| if (err) |
| goto bail; |
| VERIFY(err, 0 == (err = fastrpc_internal_munmap_fd(fl, |
| &p.munmap_fd))); |
| if (err) |
| goto bail; |
| break; |
| case FASTRPC_IOCTL_SETMODE: |
| err = fastrpc_setmode(ioctl_param, fl); |
| break; |
| case FASTRPC_IOCTL_GETPERF: |
| err = fastrpc_getperf(&p.perf, param, fl); |
| break; |
| case FASTRPC_IOCTL_CONTROL: |
| err = fastrpc_control(&p.cp, param, fl); |
| break; |
| case FASTRPC_IOCTL_GETINFO: |
| K_COPY_FROM_USER(err, 0, &info, param, sizeof(info)); |
| if (err) |
| goto bail; |
| VERIFY(err, 0 == (err = fastrpc_get_info(fl, &info))); |
| if (err) |
| goto bail; |
| K_COPY_TO_USER(err, 0, param, &info, sizeof(info)); |
| if (err) |
| goto bail; |
| break; |
| case FASTRPC_IOCTL_INIT: |
| p.init.attrs = 0; |
| p.init.siglen = 0; |
| size = sizeof(struct fastrpc_ioctl_init); |
| /* fall through */ |
| case FASTRPC_IOCTL_INIT_ATTRS: |
| if (!size) |
| size = sizeof(struct fastrpc_ioctl_init_attrs); |
| K_COPY_FROM_USER(err, 0, &p.init, param, size); |
| if (err) |
| goto bail; |
| VERIFY(err, p.init.init.filelen >= 0 && |
| p.init.init.filelen < INIT_FILELEN_MAX); |
| if (err) |
| goto bail; |
| VERIFY(err, p.init.init.memlen >= 0 && |
| p.init.init.memlen < INIT_MEMLEN_MAX); |
| if (err) |
| goto bail; |
| VERIFY(err, 0 == (err = fastrpc_init_process(fl, &p.init))); |
| if (err) |
| goto bail; |
| break; |
| case FASTRPC_IOCTL_GET_DSP_INFO: |
| err = fastrpc_get_dsp_info(&p.dsp_cap, param, fl); |
| break; |
| default: |
| err = -ENOTTY; |
| pr_info("bad ioctl: %d\n", ioctl_num); |
| break; |
| } |
| bail: |
| return err; |
| } |
| |
| static int fastrpc_restart_notifier_cb(struct notifier_block *nb, |
| unsigned long code, |
| void *data) |
| { |
| struct fastrpc_apps *me = &gfa; |
| struct fastrpc_channel_ctx *ctx; |
| struct notif_data *notifdata = (struct notif_data *)data; |
| int cid = -1; |
| |
| ctx = container_of(nb, struct fastrpc_channel_ctx, nb); |
| cid = ctx - &me->channel[0]; |
| if (code == SUBSYS_BEFORE_SHUTDOWN) { |
| pr_info("adsprpc: %s: %s subsystem is restarting\n", |
| __func__, gcinfo[cid].subsys); |
| mutex_lock(&me->channel[cid].smd_mutex); |
| ctx->ssrcount++; |
| ctx->issubsystemup = 0; |
| mutex_unlock(&me->channel[cid].smd_mutex); |
| if (cid == RH_CID) |
| me->staticpd_flags = 0; |
| } else if (code == SUBSYS_RAMDUMP_NOTIFICATION) { |
| if (cid == RH_CID) { |
| if (me->channel[RH_CID].rh_dump_dev && |
| notifdata->enable_ramdump) { |
| me->channel[RH_CID].ramdumpenabled = 1; |
| } |
| } |
| pr_info("adsprpc: %s: received RAMDUMP notification for %s\n", |
| __func__, gcinfo[cid].subsys); |
| } else if (code == SUBSYS_AFTER_POWERUP) { |
| pr_info("adsprpc: %s: %s subsystem is up\n", |
| __func__, gcinfo[cid].subsys); |
| ctx->issubsystemup = 1; |
| } |
| return NOTIFY_DONE; |
| } |
| |
| static int fastrpc_pdr_notifier_cb(struct notifier_block *pdrnb, |
| unsigned long code, |
| void *data) |
| { |
| struct fastrpc_apps *me = &gfa; |
| struct fastrpc_static_pd *spd; |
| struct notif_data *notifdata = (struct notif_data *)data; |
| |
| spd = container_of(pdrnb, struct fastrpc_static_pd, pdrnb); |
| if (code == SERVREG_NOTIF_SERVICE_STATE_DOWN_V01) { |
| pr_info("adsprpc: %s: %s (%s) is down for PDR on %s\n", |
| __func__, spd->spdname, spd->servloc_name, |
| gcinfo[spd->cid].subsys); |
| mutex_lock(&me->channel[spd->cid].smd_mutex); |
| spd->pdrcount++; |
| spd->ispdup = 0; |
| mutex_unlock(&me->channel[spd->cid].smd_mutex); |
| if (!strcmp(spd->servloc_name, |
| AUDIO_PDR_SERVICE_LOCATION_CLIENT_NAME)) |
| me->staticpd_flags = 0; |
| fastrpc_notify_pdr_drivers(me, spd->servloc_name); |
| } else if (code == SUBSYS_RAMDUMP_NOTIFICATION) { |
| if (spd->cid == RH_CID) { |
| if (me->channel[RH_CID].rh_dump_dev && |
| notifdata->enable_ramdump) { |
| me->channel[RH_CID].ramdumpenabled = 1; |
| } |
| } |
| pr_info("adsprpc: %s: received %s RAMDUMP notification for %s (%s)\n", |
| __func__, gcinfo[spd->cid].subsys, |
| spd->spdname, spd->servloc_name); |
| } else if (code == SERVREG_NOTIF_SERVICE_STATE_UP_V01) { |
| pr_info("adsprpc: %s: %s (%s) is up on %s\n", |
| __func__, spd->spdname, spd->servloc_name, |
| gcinfo[spd->cid].subsys); |
| spd->ispdup = 1; |
| } |
| |
| return NOTIFY_DONE; |
| } |
| |
| static int fastrpc_get_service_location_notify(struct notifier_block *nb, |
| unsigned long opcode, void *data) |
| { |
| struct fastrpc_static_pd *spd; |
| struct pd_qmi_client_data *pdr = data; |
| int curr_state = 0, i = 0; |
| |
| spd = container_of(nb, struct fastrpc_static_pd, get_service_nb); |
| if (opcode == LOCATOR_DOWN) { |
| pr_warn("adsprpc: %s: PDR notifier locator for %s is down for %s\n", |
| __func__, gcinfo[spd->cid].subsys, |
| spd->servloc_name); |
| return NOTIFY_DONE; |
| } |
| for (i = 0; i < pdr->total_domains; i++) { |
| if ((!strcmp(spd->servloc_name, |
| AUDIO_PDR_SERVICE_LOCATION_CLIENT_NAME)) |
| && (!strcmp(pdr->domain_list[i].name, |
| ADSP_AUDIOPD_NAME))) { |
| goto pdr_register; |
| } else if ((!strcmp(spd->servloc_name, |
| SENSORS_PDR_ADSP_SERVICE_LOCATION_CLIENT_NAME)) |
| && (!strcmp(pdr->domain_list[i].name, |
| ADSP_SENSORPD_NAME))) { |
| goto pdr_register; |
| } else if ((!strcmp(spd->servloc_name, |
| SENSORS_PDR_SLPI_SERVICE_LOCATION_CLIENT_NAME)) |
| && (!strcmp(pdr->domain_list[i].name, |
| SLPI_SENSORPD_NAME))) { |
| goto pdr_register; |
| } |
| } |
| return NOTIFY_DONE; |
| |
| pdr_register: |
| if (!spd->pdrhandle) { |
| spd->pdrhandle = |
| service_notif_register_notifier( |
| pdr->domain_list[i].name, |
| pdr->domain_list[i].instance_id, |
| &spd->pdrnb, &curr_state); |
| if (IS_ERR_OR_NULL(spd->pdrhandle)) |
| pr_warn("adsprpc: %s: PDR notifier for %s register failed for %s (%s) with err %ld\n", |
| __func__, gcinfo[spd->cid].subsys, |
| pdr->domain_list[i].name, spd->servloc_name, |
| PTR_ERR(spd->pdrhandle)); |
| else |
| pr_info("adsprpc: %s: PDR notifier for %s registered for %s (%s)\n", |
| __func__, gcinfo[spd->cid].subsys, |
| pdr->domain_list[i].name, spd->servloc_name); |
| } else { |
| pr_warn("adsprpc: %s: %s (%s) notifier is already registered for %s\n", |
| __func__, pdr->domain_list[i].name, |
| spd->servloc_name, gcinfo[spd->cid].subsys); |
| } |
| |
| if (curr_state == SERVREG_NOTIF_SERVICE_STATE_UP_V01) { |
| pr_info("adsprpc: %s: %s (%s) PDR service for %s is up\n", |
| __func__, spd->servloc_name, pdr->domain_list[i].name, |
| gcinfo[spd->cid].subsys); |
| spd->ispdup = 1; |
| } else if (curr_state == SERVREG_NOTIF_SERVICE_STATE_UNINIT_V01) { |
| pr_info("adsprpc: %s: %s (%s) PDR service for %s is uninitialized\n", |
| __func__, spd->servloc_name, pdr->domain_list[i].name, |
| gcinfo[spd->cid].subsys); |
| } |
| return NOTIFY_DONE; |
| } |
| |
| static const struct file_operations fops = { |
| .open = fastrpc_device_open, |
| .release = fastrpc_device_release, |
| .unlocked_ioctl = fastrpc_device_ioctl, |
| .compat_ioctl = compat_fastrpc_device_ioctl, |
| }; |
| |
| static const struct of_device_id fastrpc_match_table[] = { |
| { .compatible = "qcom,msm-fastrpc-adsp", }, |
| { .compatible = "qcom,msm-fastrpc-compute", }, |
| { .compatible = "qcom,msm-fastrpc-compute-cb", }, |
| { .compatible = "qcom,msm-adsprpc-mem-region", }, |
| {} |
| }; |
| |
| static int fastrpc_cb_probe(struct device *dev) |
| { |
| struct fastrpc_channel_ctx *chan; |
| struct fastrpc_session_ctx *sess; |
| struct of_phandle_args iommuspec; |
| struct fastrpc_apps *me = &gfa; |
| const char *name; |
| int err = 0, cid = -1, i = 0; |
| u32 sharedcb_count = 0, j = 0; |
| uint32_t dma_addr_pool[2] = {0, 0}; |
| |
| VERIFY(err, NULL != (name = of_get_property(dev->of_node, |
| "label", NULL))); |
| if (err) |
| goto bail; |
| |
| for (i = 0; i < NUM_CHANNELS; i++) { |
| if (!gcinfo[i].name) |
| continue; |
| if (!strcmp(name, gcinfo[i].name)) |
| break; |
| } |
| VERIFY(err, i < NUM_CHANNELS); |
| if (err) |
| goto bail; |
| cid = i; |
| chan = &gcinfo[i]; |
| VERIFY(err, chan->sesscount < NUM_SESSIONS); |
| if (err) |
| goto bail; |
| |
| err = of_parse_phandle_with_args(dev->of_node, "iommus", |
| "#iommu-cells", 0, &iommuspec); |
| if (err) { |
| pr_err("adsprpc: %s: parsing iommu arguments failed for %s with err %d\n", |
| __func__, dev_name(dev), err); |
| goto bail; |
| } |
| sess = &chan->session[chan->sesscount]; |
| sess->used = 0; |
| sess->smmu.coherent = of_property_read_bool(dev->of_node, |
| "dma-coherent"); |
| sess->smmu.secure = of_property_read_bool(dev->of_node, |
| "qcom,secure-context-bank"); |
| sess->smmu.cb = iommuspec.args[0] & 0xf; |
| sess->smmu.dev = dev; |
| sess->smmu.dev_name = dev_name(dev); |
| sess->smmu.enabled = 1; |
| |
| if (!sess->smmu.dev->dma_parms) |
| sess->smmu.dev->dma_parms = devm_kzalloc(sess->smmu.dev, |
| sizeof(*sess->smmu.dev->dma_parms), GFP_KERNEL); |
| |
| dma_set_max_seg_size(sess->smmu.dev, DMA_BIT_MASK(32)); |
| dma_set_seg_boundary(sess->smmu.dev, (unsigned long)DMA_BIT_MASK(64)); |
| |
| of_property_read_u32_array(dev->of_node, "qcom,iommu-dma-addr-pool", |
| dma_addr_pool, 2); |
| me->max_size_limit = (dma_addr_pool[1] == 0 ? 0x78000000 : |
| dma_addr_pool[1]); |
| |
| if (of_get_property(dev->of_node, "shared-cb", NULL) != NULL) { |
| err = of_property_read_u32(dev->of_node, "shared-cb", |
| &sharedcb_count); |
| if (err) |
| goto bail; |
| if (sharedcb_count > 0) { |
| struct fastrpc_session_ctx *dup_sess; |
| |
| for (j = 1; j < sharedcb_count && |
| chan->sesscount < NUM_SESSIONS; j++) { |
| chan->sesscount++; |
| dup_sess = &chan->session[chan->sesscount]; |
| memcpy(dup_sess, sess, |
| sizeof(struct fastrpc_session_ctx)); |
| } |
| } |
| } |
| |
| chan->sesscount++; |
| if (debugfs_root) { |
| debugfs_global_file = debugfs_create_file("global", 0644, |
| debugfs_root, NULL, &debugfs_fops); |
| if (IS_ERR_OR_NULL(debugfs_global_file)) { |
| pr_warn("Error: %s: %s: failed to create debugfs global file\n", |
| current->comm, __func__); |
| debugfs_global_file = NULL; |
| } |
| } |
| bail: |
| return err; |
| } |
| |
| static void init_secure_vmid_list(struct device *dev, char *prop_name, |
| struct secure_vm *destvm) |
| { |
| int err = 0; |
| u32 len = 0, i = 0; |
| u32 *rhvmlist = NULL; |
| u32 *rhvmpermlist = NULL; |
| |
| if (!of_find_property(dev->of_node, prop_name, &len)) |
| goto bail; |
| if (len == 0) |
| goto bail; |
| len /= sizeof(u32); |
| VERIFY(err, NULL != (rhvmlist = kcalloc(len, sizeof(u32), GFP_KERNEL))); |
| if (err) |
| goto bail; |
| VERIFY(err, NULL != (rhvmpermlist = kcalloc(len, sizeof(u32), |
| GFP_KERNEL))); |
| if (err) |
| goto bail; |
| for (i = 0; i < len; i++) { |
| err = of_property_read_u32_index(dev->of_node, prop_name, i, |
| &rhvmlist[i]); |
| rhvmpermlist[i] = PERM_READ | PERM_WRITE | PERM_EXEC; |
| pr_info("adsprpc: %s: secure VMID = %d\n", |
| __func__, rhvmlist[i]); |
| if (err) { |
| pr_err("adsprpc: %s: failed to read VMID\n", __func__); |
| goto bail; |
| } |
| } |
| destvm->vmid = rhvmlist; |
| destvm->vmperm = rhvmpermlist; |
| destvm->vmcount = len; |
| bail: |
| if (err) { |
| kfree(rhvmlist); |
| kfree(rhvmpermlist); |
| } |
| } |
| |
| static void init_qos_cores_list(struct device *dev, char *prop_name, |
| struct qos_cores *silvercores) |
| { |
| int err = 0; |
| u32 len = 0, i = 0; |
| u32 *coreslist = NULL; |
| |
| if (!of_find_property(dev->of_node, prop_name, &len)) |
| goto bail; |
| if (len == 0) |
| goto bail; |
| len /= sizeof(u32); |
| VERIFY(err, NULL != (coreslist = kcalloc(len, sizeof(u32), |
| GFP_KERNEL))); |
| if (err) |
| goto bail; |
| for (i = 0; i < len; i++) { |
| err = of_property_read_u32_index(dev->of_node, prop_name, i, |
| &coreslist[i]); |
| if (err) { |
| pr_err("adsprpc: %s: failed to read QOS cores list\n", |
| __func__); |
| goto bail; |
| } |
| } |
| silvercores->coreno = coreslist; |
| silvercores->corecount = len; |
| bail: |
| if (err) { |
| kfree(coreslist); |
| } |
| } |
| |
| static void configure_secure_channels(uint32_t secure_domains) |
| { |
| struct fastrpc_apps *me = &gfa; |
| int ii = 0; |
| /* |
| * secure_domains contains the bitmask of the secure channels |
| * Bit 0 - ADSP |
| * Bit 1 - MDSP |
| * Bit 2 - SLPI |
| * Bit 3 - CDSP |
| */ |
| for (ii = ADSP_DOMAIN_ID; ii <= CDSP_DOMAIN_ID; ++ii) { |
| int secure = (secure_domains >> ii) & 0x01; |
| |
| me->channel[ii].secure = secure; |
| } |
| } |
| |
| |
| static int fastrpc_probe(struct platform_device *pdev) |
| { |
| int err = 0; |
| struct fastrpc_apps *me = &gfa; |
| struct device *dev = &pdev->dev; |
| struct smq_phy_page range; |
| struct device_node *ion_node, *node; |
| struct platform_device *ion_pdev; |
| struct cma *cma; |
| uint32_t val; |
| int ret = 0; |
| uint32_t secure_domains; |
| int session = -1, cid = -1; |
| |
| if (of_device_is_compatible(dev->of_node, |
| "qcom,msm-fastrpc-compute")) { |
| init_secure_vmid_list(dev, "qcom,adsp-remoteheap-vmid", |
| &gcinfo[0].rhvm); |
| init_qos_cores_list(dev, "qcom,qos-cores", |
| &me->silvercores); |
| |
| of_property_read_u32(dev->of_node, "qcom,rpc-latency-us", |
| &me->latency); |
| if (of_get_property(dev->of_node, |
| "qcom,secure-domains", NULL) != NULL) { |
| VERIFY(err, !of_property_read_u32(dev->of_node, |
| "qcom,secure-domains", |
| &secure_domains)); |
| if (!err) |
| configure_secure_channels(secure_domains); |
| else |
| pr_info("adsprpc: unable to read the domain configuration from dts\n"); |
| } |
| } |
| if (of_device_is_compatible(dev->of_node, |
| "qcom,msm-fastrpc-compute-cb")) |
| return fastrpc_cb_probe(dev); |
| |
| if (of_device_is_compatible(dev->of_node, |
| "qcom,msm-adsprpc-mem-region")) { |
| me->dev = dev; |
| range.addr = 0; |
| ion_node = of_find_compatible_node(NULL, NULL, "qcom,msm-ion"); |
| if (ion_node) { |
| for_each_available_child_of_node(ion_node, node) { |
| if (of_property_read_u32(node, "reg", &val)) |
| continue; |
| if (val != ION_ADSP_HEAP_ID) |
| continue; |
| ion_pdev = of_find_device_by_node(node); |
| if (!ion_pdev) |
| break; |
| cma = dev_get_cma_area(&ion_pdev->dev); |
| if (cma) { |
| range.addr = cma_get_base(cma); |
| range.size = (size_t)cma_get_size(cma); |
| } |
| break; |
| } |
| } |
| if (range.addr && !of_property_read_bool(dev->of_node, |
| "restrict-access")) { |
| int srcVM[1] = {VMID_HLOS}; |
| int destVM[4] = {VMID_HLOS, VMID_MSS_MSA, VMID_SSC_Q6, |
| VMID_ADSP_Q6}; |
| int destVMperm[4] = {PERM_READ | PERM_WRITE | PERM_EXEC, |
| PERM_READ | PERM_WRITE | PERM_EXEC, |
| PERM_READ | PERM_WRITE | PERM_EXEC, |
| PERM_READ | PERM_WRITE | PERM_EXEC, |
| }; |
| |
| err = hyp_assign_phys(range.addr, range.size, |
| srcVM, 1, destVM, destVMperm, 4); |
| if (err) |
| goto bail; |
| me->range.addr = range.addr; |
| me->range.size = range.size; |
| } |
| return 0; |
| } |
| me->legacy_remote_heap = of_property_read_bool(dev->of_node, |
| "qcom,fastrpc-legacy-remote-heap"); |
| if (of_property_read_bool(dev->of_node, |
| "qcom,fastrpc-adsp-audio-pdr")) { |
| err = fastrpc_get_spd_session( |
| AUDIO_PDR_SERVICE_LOCATION_CLIENT_NAME, &session, &cid); |
| if (err) |
| goto spdbail; |
| me->channel[cid].spd[session].get_service_nb.notifier_call = |
| fastrpc_get_service_location_notify; |
| ret = get_service_location( |
| AUDIO_PDR_SERVICE_LOCATION_CLIENT_NAME, |
| AUDIO_PDR_ADSP_SERVICE_NAME, |
| &me->channel[cid].spd[session].get_service_nb); |
| if (ret) |
| pr_warn("adsprpc: %s: get service location failed with %d for %s (%s)\n", |
| __func__, ret, AUDIO_PDR_ADSP_SERVICE_NAME, |
| AUDIO_PDR_SERVICE_LOCATION_CLIENT_NAME); |
| else |
| pr_info("adsprpc: %s: service location enabled for %s (%s)\n", |
| __func__, AUDIO_PDR_ADSP_SERVICE_NAME, |
| AUDIO_PDR_SERVICE_LOCATION_CLIENT_NAME); |
| } |
| if (of_property_read_bool(dev->of_node, |
| "qcom,fastrpc-adsp-sensors-pdr")) { |
| err = fastrpc_get_spd_session( |
| SENSORS_PDR_ADSP_SERVICE_LOCATION_CLIENT_NAME, &session, &cid); |
| if (err) |
| goto spdbail; |
| me->channel[cid].spd[session].get_service_nb.notifier_call = |
| fastrpc_get_service_location_notify; |
| ret = get_service_location( |
| SENSORS_PDR_ADSP_SERVICE_LOCATION_CLIENT_NAME, |
| SENSORS_PDR_ADSP_SERVICE_NAME, |
| &me->channel[cid].spd[session].get_service_nb); |
| if (ret) |
| pr_warn("adsprpc: %s: get service location failed with %d for %s (%s)\n", |
| __func__, ret, SENSORS_PDR_SLPI_SERVICE_NAME, |
| SENSORS_PDR_ADSP_SERVICE_LOCATION_CLIENT_NAME); |
| else |
| pr_info("adsprpc: %s: service location enabled for %s (%s)\n", |
| __func__, SENSORS_PDR_SLPI_SERVICE_NAME, |
| SENSORS_PDR_ADSP_SERVICE_LOCATION_CLIENT_NAME); |
| } |
| if (of_property_read_bool(dev->of_node, |
| "qcom,fastrpc-slpi-sensors-pdr")) { |
| err = fastrpc_get_spd_session( |
| SENSORS_PDR_SLPI_SERVICE_LOCATION_CLIENT_NAME, &session, &cid); |
| if (err) |
| goto spdbail; |
| me->channel[cid].spd[session].get_service_nb.notifier_call = |
| fastrpc_get_service_location_notify; |
| ret = get_service_location( |
| SENSORS_PDR_SLPI_SERVICE_LOCATION_CLIENT_NAME, |
| SENSORS_PDR_SLPI_SERVICE_NAME, |
| &me->channel[cid].spd[session].get_service_nb); |
| if (ret) |
| pr_warn("adsprpc: %s: get service location failed with %d for %s (%s)\n", |
| __func__, ret, SENSORS_PDR_SLPI_SERVICE_NAME, |
| SENSORS_PDR_SLPI_SERVICE_LOCATION_CLIENT_NAME); |
| else |
| pr_info("adsprpc: %s: service location enabled for %s (%s)\n", |
| __func__, SENSORS_PDR_SLPI_SERVICE_NAME, |
| SENSORS_PDR_SLPI_SERVICE_LOCATION_CLIENT_NAME); |
| } |
| spdbail: |
| err = of_platform_populate(pdev->dev.of_node, |
| fastrpc_match_table, |
| NULL, &pdev->dev); |
| if (err) |
| goto bail; |
| bail: |
| return err; |
| } |
| |
| static void fastrpc_deinit(void) |
| { |
| struct fastrpc_channel_ctx *chan = gcinfo; |
| int i, j; |
| |
| for (i = 0; i < NUM_CHANNELS; i++, chan++) { |
| for (j = 0; j < NUM_SESSIONS; j++) { |
| struct fastrpc_session_ctx *sess = &chan->session[j]; |
| |
| if (sess->smmu.dev) |
| sess->smmu.dev = NULL; |
| } |
| kfree(chan->rhvm.vmid); |
| kfree(chan->rhvm.vmperm); |
| } |
| } |
| |
| static struct platform_driver fastrpc_driver = { |
| .probe = fastrpc_probe, |
| .driver = { |
| .name = "fastrpc", |
| .of_match_table = fastrpc_match_table, |
| .suppress_bind_attrs = true, |
| }, |
| }; |
| |
| static const struct rpmsg_device_id fastrpc_rpmsg_match[] = { |
| { FASTRPC_GLINK_GUID }, |
| { }, |
| }; |
| |
| static const struct of_device_id fastrpc_rpmsg_of_match[] = { |
| { .compatible = "qcom,msm-fastrpc-rpmsg" }, |
| { }, |
| }; |
| MODULE_DEVICE_TABLE(of, fastrpc_rpmsg_of_match); |
| |
| static struct rpmsg_driver fastrpc_rpmsg_client = { |
| .id_table = fastrpc_rpmsg_match, |
| .probe = fastrpc_rpmsg_probe, |
| .remove = fastrpc_rpmsg_remove, |
| .callback = fastrpc_rpmsg_callback, |
| .drv = { |
| .name = "qcom,msm_fastrpc_rpmsg", |
| .of_match_table = fastrpc_rpmsg_of_match, |
| }, |
| }; |
| |
| static int __init fastrpc_device_init(void) |
| { |
| struct fastrpc_apps *me = &gfa; |
| struct device *dev = NULL; |
| struct device *secure_dev = NULL; |
| int err = 0, i; |
| |
| debugfs_root = debugfs_create_dir("adsprpc", NULL); |
| if (IS_ERR_OR_NULL(debugfs_root)) { |
| pr_warn("Error: %s: %s: failed to create debugfs root dir\n", |
| current->comm, __func__); |
| debugfs_remove_recursive(debugfs_root); |
| debugfs_root = NULL; |
| } |
| memset(me, 0, sizeof(*me)); |
| fastrpc_init(me); |
| me->dev = NULL; |
| me->legacy_remote_heap = 0; |
| VERIFY(err, 0 == platform_driver_register(&fastrpc_driver)); |
| if (err) |
| goto register_bail; |
| VERIFY(err, 0 == alloc_chrdev_region(&me->dev_no, 0, NUM_CHANNELS, |
| DEVICE_NAME)); |
| if (err) |
| goto alloc_chrdev_bail; |
| cdev_init(&me->cdev, &fops); |
| me->cdev.owner = THIS_MODULE; |
| VERIFY(err, 0 == cdev_add(&me->cdev, MKDEV(MAJOR(me->dev_no), 0), |
| NUM_DEVICES)); |
| if (err) |
| goto cdev_init_bail; |
| me->class = class_create(THIS_MODULE, "fastrpc"); |
| VERIFY(err, !IS_ERR(me->class)); |
| if (err) |
| goto class_create_bail; |
| me->compat = (fops.compat_ioctl == NULL) ? 0 : 1; |
| |
| /* |
| * Create devices and register with sysfs |
| * Create first device with minor number 0 |
| */ |
| dev = device_create(me->class, NULL, |
| MKDEV(MAJOR(me->dev_no), MINOR_NUM_DEV), |
| NULL, DEVICE_NAME); |
| VERIFY(err, !IS_ERR_OR_NULL(dev)); |
| if (err) |
| goto device_create_bail; |
| |
| /* Create secure device with minor number for secure device */ |
| secure_dev = device_create(me->class, NULL, |
| MKDEV(MAJOR(me->dev_no), MINOR_NUM_SECURE_DEV), |
| NULL, DEVICE_NAME_SECURE); |
| VERIFY(err, !IS_ERR_OR_NULL(secure_dev)); |
| if (err) |
| goto device_create_bail; |
| |
| for (i = 0; i < NUM_CHANNELS; i++) { |
| me->jobid[i] = 1; |
| me->channel[i].dev = secure_dev; |
| if (i == CDSP_DOMAIN_ID) |
| me->channel[i].dev = dev; |
| me->channel[i].ssrcount = 0; |
| me->channel[i].prevssrcount = 0; |
| me->channel[i].issubsystemup = 1; |
| me->channel[i].ramdumpenabled = 0; |
| me->channel[i].rh_dump_dev = NULL; |
| me->channel[i].nb.notifier_call = fastrpc_restart_notifier_cb; |
| me->channel[i].handle = subsys_notif_register_notifier( |
| gcinfo[i].subsys, |
| &me->channel[i].nb); |
| if (IS_ERR_OR_NULL(me->channel[i].handle)) |
| pr_warn("adsprpc: %s: SSR notifier register failed for %s with err %d\n", |
| __func__, gcinfo[i].subsys, |
| PTR_ERR(me->channel[i].handle)); |
| else |
| pr_info("adsprpc: %s: SSR notifier registered for %s\n", |
| __func__, gcinfo[i].subsys); |
| } |
| |
| err = register_rpmsg_driver(&fastrpc_rpmsg_client); |
| if (err) { |
| pr_err("adsprpc: %s: register_rpmsg_driver failed with err %d\n", |
| __func__, err); |
| goto device_create_bail; |
| } |
| me->rpmsg_register = 1; |
| |
| fastrpc_register_wakeup_source(me->non_secure_dev, |
| FASTRPC_NON_SECURE_WAKE_SOURCE_CLIENT_NAME, |
| &me->wake_source); |
| fastrpc_register_wakeup_source(me->secure_dev, |
| FASTRPC_SECURE_WAKE_SOURCE_CLIENT_NAME, |
| &me->wake_source_secure); |
| |
| return 0; |
| device_create_bail: |
| for (i = 0; i < NUM_CHANNELS; i++) { |
| if (me->channel[i].handle) |
| subsys_notif_unregister_notifier(me->channel[i].handle, |
| &me->channel[i].nb); |
| } |
| if (!IS_ERR_OR_NULL(dev)) |
| device_destroy(me->class, MKDEV(MAJOR(me->dev_no), |
| MINOR_NUM_DEV)); |
| if (!IS_ERR_OR_NULL(secure_dev)) |
| device_destroy(me->class, MKDEV(MAJOR(me->dev_no), |
| MINOR_NUM_SECURE_DEV)); |
| class_destroy(me->class); |
| class_create_bail: |
| cdev_del(&me->cdev); |
| cdev_init_bail: |
| unregister_chrdev_region(me->dev_no, NUM_CHANNELS); |
| alloc_chrdev_bail: |
| register_bail: |
| fastrpc_deinit(); |
| return err; |
| } |
| |
| static void __exit fastrpc_device_exit(void) |
| { |
| struct fastrpc_apps *me = &gfa; |
| int i; |
| |
| fastrpc_file_list_dtor(me); |
| fastrpc_deinit(); |
| for (i = 0; i < NUM_CHANNELS; i++) { |
| if (!gcinfo[i].name) |
| continue; |
| if (me->channel[i].ipc_log_ctx) |
| ipc_log_context_destroy(me->channel[i].ipc_log_ctx); |
| subsys_notif_unregister_notifier(me->channel[i].handle, |
| &me->channel[i].nb); |
| } |
| |
| /* Destroy the secure and non secure devices */ |
| device_destroy(me->class, MKDEV(MAJOR(me->dev_no), MINOR_NUM_DEV)); |
| device_destroy(me->class, MKDEV(MAJOR(me->dev_no), |
| MINOR_NUM_SECURE_DEV)); |
| |
| class_destroy(me->class); |
| cdev_del(&me->cdev); |
| unregister_chrdev_region(me->dev_no, NUM_CHANNELS); |
| if (me->rpmsg_register == 1) |
| unregister_rpmsg_driver(&fastrpc_rpmsg_client); |
| if (me->wake_source) |
| wakeup_source_unregister(me->wake_source); |
| if (me->wake_source_secure) |
| wakeup_source_unregister(me->wake_source_secure); |
| debugfs_remove_recursive(debugfs_root); |
| } |
| |
| late_initcall(fastrpc_device_init); |
| module_exit(fastrpc_device_exit); |
| |
| MODULE_LICENSE("GPL v2"); |