1// SPDX-License-Identifier: GPL-2.0 2/* 3 * Copyright (c) 2016 MediaTek Inc. 4 * Author: PC Chen <pc.chen@mediatek.com> 5 */ 6 7#include "mtk_vcodec_dec_drv.h" 8#include "vdec_drv_if.h" 9#include "vdec_ipi_msg.h" 10#include "vdec_vpu_if.h" 11 12static void handle_init_ack_msg(const struct vdec_vpu_ipi_init_ack *msg) 13{ 14 struct vdec_vpu_inst *vpu = (struct vdec_vpu_inst *) 15 (unsigned long)msg->ap_inst_addr; 16 17 mtk_vdec_debug(vpu->ctx, "+ ap_inst_addr = 0x%llx", msg->ap_inst_addr); 18 19 /* mapping VPU address to kernel virtual address */ 20 /* the content in vsi is initialized to 0 in VPU */ 21 vpu->vsi = mtk_vcodec_fw_map_dm_addr(vpu->ctx->dev->fw_handler, 22 msg->vpu_inst_addr); 23 vpu->inst_addr = msg->vpu_inst_addr; 24 25 mtk_vdec_debug(vpu->ctx, "- vpu_inst_addr = 0x%x", vpu->inst_addr); 26 27 /* Set default ABI version if dealing with unversioned firmware. */ 28 vpu->fw_abi_version = 0; 29 /* 30 * Instance ID is only used if ABI version >= 2. Initialize it with 31 * garbage by default. 32 */ 33 vpu->inst_id = 0xdeadbeef; 34 35 /* VPU firmware does not contain a version field. */ 36 if (mtk_vcodec_fw_get_type(vpu->ctx->dev->fw_handler) == VPU) 37 return; 38 39 /* Check firmware version. */ 40 vpu->fw_abi_version = msg->vdec_abi_version; 41 mtk_vdec_debug(vpu->ctx, "firmware version 0x%x\n", vpu->fw_abi_version); 42 switch (vpu->fw_abi_version) { 43 case 1: 44 break; 45 case 2: 46 vpu->inst_id = msg->inst_id; 47 break; 48 default: 49 mtk_vdec_err(vpu->ctx, "unhandled firmware version 0x%x\n", vpu->fw_abi_version); 50 vpu->failure = 1; 51 break; 52 } 53} 54 55static void handle_get_param_msg_ack(const struct vdec_vpu_ipi_get_param_ack *msg) 56{ 57 struct vdec_vpu_inst *vpu = (struct vdec_vpu_inst *) 58 (unsigned long)msg->ap_inst_addr; 59 60 mtk_vdec_debug(vpu->ctx, "+ ap_inst_addr = 0x%llx", msg->ap_inst_addr); 61 62 /* param_type is enum vdec_get_param_type */ 63 switch (msg->param_type) { 64 case GET_PARAM_PIC_INFO: 65 vpu->fb_sz[0] = msg->data[0]; 66 vpu->fb_sz[1] = msg->data[1]; 67 break; 68 default: 69 mtk_vdec_err(vpu->ctx, "invalid get param type=%d", msg->param_type); 70 vpu->failure = 1; 71 break; 72 } 73} 74 75static bool vpu_dec_check_ap_inst(struct mtk_vcodec_dec_dev *dec_dev, struct vdec_vpu_inst *vpu) 76{ 77 struct mtk_vcodec_dec_ctx *ctx; 78 int ret = false; 79 80 mutex_lock(&dec_dev->dev_ctx_lock); 81 list_for_each_entry(ctx, &dec_dev->ctx_list, list) { 82 if (!IS_ERR_OR_NULL(ctx) && ctx->vpu_inst == vpu) { 83 ret = true; 84 break; 85 } 86 } 87 mutex_unlock(&dec_dev->dev_ctx_lock); 88 89 return ret; 90} 91 92/* 93 * vpu_dec_ipi_handler - Handler for VPU ipi message. 94 * 95 * @data: ipi message 96 * @len : length of ipi message 97 * @priv: callback private data which is passed by decoder when register. 98 * 99 * This function runs in interrupt context and it means there's an IPI MSG 100 * from VPU. 101 */ 102static void vpu_dec_ipi_handler(void *data, unsigned int len, void *priv) 103{ 104 struct mtk_vcodec_dec_dev *dec_dev; 105 const struct vdec_vpu_ipi_ack *msg = data; 106 struct vdec_vpu_inst *vpu; 107 108 dec_dev = (struct mtk_vcodec_dec_dev *)priv; 109 vpu = (struct vdec_vpu_inst *)(unsigned long)msg->ap_inst_addr; 110 if (!priv || !vpu) { 111 pr_err(MTK_DBG_V4L2_STR "ap_inst_addr is NULL, did the SCP hang or crash?"); 112 return; 113 } 114 115 if (!vpu_dec_check_ap_inst(dec_dev, vpu) || msg->msg_id < VPU_IPIMSG_DEC_INIT_ACK || 116 msg->msg_id > VPU_IPIMSG_DEC_GET_PARAM_ACK) { 117 mtk_v4l2_vdec_err(vpu->ctx, "vdec msg id not correctly => 0x%x", msg->msg_id); 118 vpu->failure = -EINVAL; 119 goto error; 120 } 121 122 vpu->failure = msg->status; 123 if (msg->status != 0) 124 goto error; 125 126 switch (msg->msg_id) { 127 case VPU_IPIMSG_DEC_INIT_ACK: 128 handle_init_ack_msg(data); 129 break; 130 131 case VPU_IPIMSG_DEC_START_ACK: 132 case VPU_IPIMSG_DEC_END_ACK: 133 case VPU_IPIMSG_DEC_DEINIT_ACK: 134 case VPU_IPIMSG_DEC_RESET_ACK: 135 case VPU_IPIMSG_DEC_CORE_ACK: 136 case VPU_IPIMSG_DEC_CORE_END_ACK: 137 break; 138 139 case VPU_IPIMSG_DEC_GET_PARAM_ACK: 140 handle_get_param_msg_ack(data); 141 break; 142 default: 143 mtk_vdec_err(vpu->ctx, "invalid msg=%X", msg->msg_id); 144 break; 145 } 146 147error: 148 vpu->signaled = 1; 149} 150 151static int vcodec_vpu_send_msg(struct vdec_vpu_inst *vpu, void *msg, int len) 152{ 153 int err, id, msgid; 154 155 msgid = *(uint32_t *)msg; 156 mtk_vdec_debug(vpu->ctx, "id=%X", msgid); 157 158 vpu->failure = 0; 159 vpu->signaled = 0; 160 161 if (vpu->ctx->dev->vdec_pdata->hw_arch == MTK_VDEC_LAT_SINGLE_CORE) { 162 if (msgid == AP_IPIMSG_DEC_CORE || 163 msgid == AP_IPIMSG_DEC_CORE_END) 164 id = vpu->core_id; 165 else 166 id = vpu->id; 167 } else { 168 id = vpu->id; 169 } 170 171 err = mtk_vcodec_fw_ipi_send(vpu->ctx->dev->fw_handler, id, msg, 172 len, 2000); 173 if (err) { 174 mtk_vdec_err(vpu->ctx, "send fail vpu_id=%d msg_id=%X status=%d", 175 id, msgid, err); 176 return err; 177 } 178 179 return vpu->failure; 180} 181 182static int vcodec_send_ap_ipi(struct vdec_vpu_inst *vpu, unsigned int msg_id) 183{ 184 struct vdec_ap_ipi_cmd msg; 185 int err = 0; 186 187 mtk_vdec_debug(vpu->ctx, "+ id=%X", msg_id); 188 189 memset(&msg, 0, sizeof(msg)); 190 msg.msg_id = msg_id; 191 if (vpu->fw_abi_version < 2) 192 msg.vpu_inst_addr = vpu->inst_addr; 193 else 194 msg.inst_id = vpu->inst_id; 195 msg.codec_type = vpu->codec_type; 196 197 err = vcodec_vpu_send_msg(vpu, &msg, sizeof(msg)); 198 mtk_vdec_debug(vpu->ctx, "- id=%X ret=%d", msg_id, err); 199 return err; 200} 201 202int vpu_dec_init(struct vdec_vpu_inst *vpu) 203{ 204 struct vdec_ap_ipi_init msg; 205 int err; 206 207 init_waitqueue_head(&vpu->wq); 208 vpu->handler = vpu_dec_ipi_handler; 209 vpu->ctx->vpu_inst = vpu; 210 211 err = mtk_vcodec_fw_ipi_register(vpu->ctx->dev->fw_handler, vpu->id, 212 vpu->handler, "vdec", vpu->ctx->dev); 213 if (err) { 214 mtk_vdec_err(vpu->ctx, "vpu_ipi_register fail status=%d", err); 215 return err; 216 } 217 218 if (vpu->ctx->dev->vdec_pdata->hw_arch == MTK_VDEC_LAT_SINGLE_CORE) { 219 err = mtk_vcodec_fw_ipi_register(vpu->ctx->dev->fw_handler, 220 vpu->core_id, vpu->handler, 221 "vdec", vpu->ctx->dev); 222 if (err) { 223 mtk_vdec_err(vpu->ctx, "vpu_ipi_register core fail status=%d", err); 224 return err; 225 } 226 } 227 228 memset(&msg, 0, sizeof(msg)); 229 msg.msg_id = AP_IPIMSG_DEC_INIT; 230 msg.ap_inst_addr = (unsigned long)vpu; 231 msg.codec_type = vpu->codec_type; 232 233 mtk_vdec_debug(vpu->ctx, "vdec_inst=%p", vpu); 234 235 err = vcodec_vpu_send_msg(vpu, (void *)&msg, sizeof(msg)); 236 mtk_vdec_debug(vpu->ctx, "- ret=%d", err); 237 return err; 238} 239 240int vpu_dec_start(struct vdec_vpu_inst *vpu, uint32_t *data, unsigned int len) 241{ 242 struct vdec_ap_ipi_dec_start msg; 243 int i; 244 int err = 0; 245 246 if (len > ARRAY_SIZE(msg.data)) { 247 mtk_vdec_err(vpu->ctx, "invalid len = %d\n", len); 248 return -EINVAL; 249 } 250 251 memset(&msg, 0, sizeof(msg)); 252 msg.msg_id = AP_IPIMSG_DEC_START; 253 if (vpu->fw_abi_version < 2) 254 msg.vpu_inst_addr = vpu->inst_addr; 255 else 256 msg.inst_id = vpu->inst_id; 257 258 for (i = 0; i < len; i++) 259 msg.data[i] = data[i]; 260 msg.codec_type = vpu->codec_type; 261 262 err = vcodec_vpu_send_msg(vpu, (void *)&msg, sizeof(msg)); 263 mtk_vdec_debug(vpu->ctx, "- ret=%d", err); 264 return err; 265} 266 267int vpu_dec_get_param(struct vdec_vpu_inst *vpu, uint32_t *data, 268 unsigned int len, unsigned int param_type) 269{ 270 struct vdec_ap_ipi_get_param msg; 271 int err; 272 273 if (len > ARRAY_SIZE(msg.data)) { 274 mtk_vdec_err(vpu->ctx, "invalid len = %d\n", len); 275 return -EINVAL; 276 } 277 278 memset(&msg, 0, sizeof(msg)); 279 msg.msg_id = AP_IPIMSG_DEC_GET_PARAM; 280 msg.inst_id = vpu->inst_id; 281 memcpy(msg.data, data, sizeof(unsigned int) * len); 282 msg.param_type = param_type; 283 msg.codec_type = vpu->codec_type; 284 285 err = vcodec_vpu_send_msg(vpu, (void *)&msg, sizeof(msg)); 286 mtk_vdec_debug(vpu->ctx, "- ret=%d", err); 287 return err; 288} 289 290int vpu_dec_core(struct vdec_vpu_inst *vpu) 291{ 292 return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_CORE); 293} 294 295int vpu_dec_end(struct vdec_vpu_inst *vpu) 296{ 297 return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_END); 298} 299 300int vpu_dec_core_end(struct vdec_vpu_inst *vpu) 301{ 302 return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_CORE_END); 303} 304 305int vpu_dec_deinit(struct vdec_vpu_inst *vpu) 306{ 307 return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_DEINIT); 308} 309 310int vpu_dec_reset(struct vdec_vpu_inst *vpu) 311{ 312 return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_RESET); 313} 314