297 lines
9 KiB
C
297 lines
9 KiB
C
/* SPDX-License-Identifier: Apache-2.0 OR MIT */
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/*
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* Copyright (c) 2015 Rockchip Electronics Co., Ltd.
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*/
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#define MODULE_TAG "mpp_rt"
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#include <fcntl.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include "mpp_env.h"
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#include "mpp_mem.h"
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#include "mpp_debug.h"
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#include "mpp_common.h"
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#include "mpp_singleton.h"
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#include "mpp_runtime.h"
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/* debug bit flags for mpp_rt_debug (env: mpp_rt_debug=<bits>) */
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#define MPP_RT_DBG_CAP (0x00000001) /* kmpp capability check */
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#define MPP_RT_DBG_RW_PATH (0x00000002) /* read-write path probing */
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#define MPP_RT_DBG_ALLOC (0x00000004) /* allocator detection */
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#define rt_dbg_cap(fmt, ...) mpp_dbg(mpp_rt_debug, MPP_RT_DBG_CAP, fmt, ## __VA_ARGS__)
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#define rt_dbg_path(fmt, ...) mpp_dbg(mpp_rt_debug, MPP_RT_DBG_RW_PATH, fmt, ## __VA_ARGS__)
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#define rt_dbg_heap(fmt, ...) mpp_dbg(mpp_rt_debug, MPP_RT_DBG_ALLOC, fmt, ## __VA_ARGS__)
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#define MAX_DTS_PATH_LEN 256
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#define get_srv_runtime() \
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({ \
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MppRuntimeSrv *__tmp; \
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if (!srv_runtime) { \
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mpp_rt_srv_init(); \
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} \
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if (srv_runtime) { \
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__tmp = srv_runtime; \
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} else { \
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mpp_err("mpp runtime srv not init at %s\n", __FUNCTION__); \
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__tmp = NULL; \
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} \
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__tmp; \
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})
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static rk_u32 mpp_rt_debug = 0;
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static const char *mpp_dts_base = "/proc/device-tree/";
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static const char *mpp_vpu_names[] = {
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"vpu_service",
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"vpu-service",
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"vpu",
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//"hevc_service",
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//"hevc-service",
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//"rkvdec",
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//"rkvenc",
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//"vpu_combo",
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};
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static const char *mpp_vpu_address[] = {
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"", /* old kernel */
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"@10108000", /* rk3036 */
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"@20020000", /* rk322x */
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"@30000000", /* rv1108 */
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"@ff9a0000", /* rk3288/3366 */
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"@ff350000", /* rk322xh/3328 */
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"@ff650000", /* rk3399 */
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};
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typedef struct MppRuntimeService_t {
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rk_u32 allocator_valid[MPP_BUFFER_TYPE_BUTT];
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const char *rw_path;
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} MppRuntimeSrv;
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static MppRuntimeSrv *srv_runtime;
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static const char *mpp_rw_candidate_paths[] = {
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"/data", /* Android primary */
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"/userdata", /* Linux */
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"/sdcard", /* Android external storage */
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};
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#define PROC_KMPP_PATH_LEN 64
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#define PROC_KMPP_LINE_LEN 128
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/* read /proc/kmpp/<module>/<group>, match the leading name before the colon.
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* returns the capability version (>= 1) on match, 0 on not supported
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* (including a missing proc node, treated as a normal "unsupported"). */
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rk_u32 mpp_rt_get_kmpp_cap(const char *module, const char *group, const char *name)
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{
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char path[PROC_KMPP_PATH_LEN];
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char line[PROC_KMPP_LINE_LEN];
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FILE *fp;
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rk_u32 ret = 0;
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if (!module || !group || !name)
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return 0;
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rt_dbg_cap("kmpp cap %s/%s :: %s\n", module, group, name);
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snprintf(path, sizeof(path), "/proc/kmpp/%s/%s", module, group);
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fp = fopen(path, "r");
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if (!fp) {
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rt_dbg_cap("kmpp cap %s/%s :: %s not available\n", module, group, name);
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return 0;
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}
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while (fgets(line, sizeof(line), fp)) {
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char cap_name[64];
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rk_u32 ver;
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/* "name : version : desc" — %s stops at the padding after the
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* left-aligned name, %u reads the version */
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if (sscanf(line, "%63s : %u", cap_name, &ver) == 2 &&
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!strcmp(cap_name, name)) {
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ret = ver;
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break;
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}
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}
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fclose(fp);
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rt_dbg_cap("kmpp cap %s/%s :: %s ver %u\n", module, group, name, ret);
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return ret;
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}
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static void mpp_rt_srv_init()
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{
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MppRuntimeSrv *srv = srv_runtime;
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mpp_env_get_u32("mpp_rt_debug", &mpp_rt_debug, 0);
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if (srv)
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return;
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srv = mpp_calloc(MppRuntimeSrv, 1);
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if (!srv) {
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mpp_err_f("failed to allocate runtime service\n");
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return;
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}
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srv_runtime = srv;
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/* Probe read-write accessible path */
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{
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const char *env_rw_path = NULL;
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rk_u32 i;
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mpp_env_get_str("mpp_rw_path", &env_rw_path, NULL);
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if (env_rw_path && access(env_rw_path, R_OK | W_OK) == 0) {
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srv->rw_path = env_rw_path;
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rt_dbg_path("using env rw path: %s\n", env_rw_path);
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} else {
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if (env_rw_path)
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mpp_loge("env mpp_rw_path %s is not accessible\n", env_rw_path);
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for (i = 0; i < MPP_ARRAY_ELEMS(mpp_rw_candidate_paths); i++) {
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const char *path = mpp_rw_candidate_paths[i];
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if (access(path, R_OK | W_OK) == 0) {
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rt_dbg_path("found rw path: %s\n", path);
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srv->rw_path = path;
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break;
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}
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}
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}
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}
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srv->allocator_valid[MPP_BUFFER_TYPE_NORMAL] = 1;
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srv->allocator_valid[MPP_BUFFER_TYPE_ION] = !access("/dev/ion", F_OK | R_OK | W_OK);
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srv->allocator_valid[MPP_BUFFER_TYPE_DRM] =
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!access("/dev/dri/renderD128", F_OK | R_OK | W_OK) ||
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!access("/dev/dri/card0", F_OK | R_OK | W_OK);
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srv->allocator_valid[MPP_BUFFER_TYPE_DMA_HEAP] = !access("/dev/dma_heap", F_OK | R_OK);
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if (!srv->allocator_valid[MPP_BUFFER_TYPE_ION] &&
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!srv->allocator_valid[MPP_BUFFER_TYPE_DRM] &&
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!srv->allocator_valid[MPP_BUFFER_TYPE_DMA_HEAP]) {
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mpp_err("can NOT found any allocator\n");
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return;
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}
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if (srv->allocator_valid[MPP_BUFFER_TYPE_DMA_HEAP]) {
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rt_dbg_heap("usedma heap allocator\n");
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return;
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}
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if (srv->allocator_valid[MPP_BUFFER_TYPE_ION] && !srv->allocator_valid[MPP_BUFFER_TYPE_DRM]) {
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rt_dbg_heap("useion allocator\n");
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return;
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}
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if (!srv->allocator_valid[MPP_BUFFER_TYPE_ION] && srv->allocator_valid[MPP_BUFFER_TYPE_DRM]) {
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rt_dbg_heap("usedrm allocator\n");
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return;
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}
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if (!access("/dev/mpp_service", F_OK | R_OK | W_OK)) {
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srv->allocator_valid[MPP_BUFFER_TYPE_ION] = 0;
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rt_dbg_heap("usedrm allocator for mpp_service\n");
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return;
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}
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// If both ion and drm is enabled detect allocator in dts to choose one
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// TODO: When unify dma fd kernel is completed this part will be removed.
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if (srv->allocator_valid[MPP_BUFFER_TYPE_ION] &&
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srv->allocator_valid[MPP_BUFFER_TYPE_DRM]) {
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/* Detect hardware buffer type is ion or drm */
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rk_u32 i, j;
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char path[MAX_DTS_PATH_LEN];
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rk_u32 path_len = MAX_DTS_PATH_LEN - 1;
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rk_u32 dts_path_len = snprintf(path, path_len, "%s", mpp_dts_base);
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char *p = path + dts_path_len;
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rk_u32 allocator_found = 0;
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path_len -= dts_path_len;
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for (i = 0; i < MPP_ARRAY_ELEMS(mpp_vpu_names); i++) {
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for (j = 0; j < MPP_ARRAY_ELEMS(mpp_vpu_address); j++) {
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rk_u32 dev_path_len = snprintf(p, path_len, "%s%s",
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mpp_vpu_names[i], mpp_vpu_address[j]);
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int f_ok = access(path, F_OK);
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if (f_ok == 0) {
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snprintf(p + dev_path_len, path_len - dev_path_len, "/%s", "allocator");
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f_ok = access(path, F_OK);
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if (f_ok == 0) {
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rk_s32 val = 0;
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FILE *fp = fopen(path, "rb");
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if (fp) {
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size_t len = fread(&val, 1, 4, fp);
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// zero for ion non-zero for drm ->
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// zero - disable drm
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// non-zero - disable ion
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if (len != 4) {
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mpp_err("failed to read dts allocator value default 0\n");
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val = 0;
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}
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if (val == 0) {
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srv->allocator_valid[MPP_BUFFER_TYPE_DRM] = 0;
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rt_dbg_heap("found ion allocator in dts\n");
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} else {
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srv->allocator_valid[MPP_BUFFER_TYPE_ION] = 0;
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rt_dbg_heap("found drm allocator in dts\n");
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}
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allocator_found = 1;
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}
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}
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}
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if (allocator_found)
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break;
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}
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if (allocator_found)
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break;
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}
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if (!allocator_found)
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mpp_log("Can NOT found allocator in dts, enable both ion and drm\n");
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}
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return;
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}
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static void mpp_rt_srv_deinit()
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{
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MPP_FREE(srv_runtime);
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}
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rk_u32 mpp_rt_allcator_is_valid(MppBufferType type)
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{
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MppBufferType buffer_type = (MppBufferType)(type & MPP_BUFFER_TYPE_MASK);
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rk_u32 valid = 0;
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if (buffer_type < MPP_BUFFER_TYPE_BUTT) {
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MppRuntimeSrv *srv = get_srv_runtime();
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if (srv)
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valid = srv->allocator_valid[buffer_type];
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}
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return valid;
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}
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const char *mpp_rt_get_rw_path(void)
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{
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MppRuntimeSrv *srv = get_srv_runtime();
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return NULL != srv ? srv->rw_path : NULL;
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}
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MPP_SINGLETON(MPP_SGLN_RUNTIME, mpp_runtime, mpp_rt_srv_init, mpp_rt_srv_deinit)
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