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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 | // SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2015-2016 MediaTek Inc. * Author: Houlong Wei <houlong.wei@mediatek.com> * Ming Hsiu Tsai <minghsiu.tsai@mediatek.com> */ #include "mtk_mdp_core.h" #include "mtk_mdp_vpu.h" #include "mtk_vpu.h" static inline struct mtk_mdp_ctx *vpu_to_ctx(struct mtk_mdp_vpu *vpu) { return container_of(vpu, struct mtk_mdp_ctx, vpu); } static void mtk_mdp_vpu_handle_init_ack(const struct mdp_ipi_comm_ack *msg) { struct mtk_mdp_vpu *vpu = (struct mtk_mdp_vpu *) (unsigned long)msg->ap_inst; /* mapping VPU address to kernel virtual address */ vpu->vsi = (struct mdp_process_vsi *) vpu_mapping_dm_addr(vpu->pdev, msg->vpu_inst_addr); vpu->inst_addr = msg->vpu_inst_addr; } static void mtk_mdp_vpu_ipi_handler(void *data, unsigned int len, void *priv) { const struct mdp_ipi_comm_ack *msg = data; unsigned int msg_id = msg->msg_id; struct mtk_mdp_vpu *vpu = (struct mtk_mdp_vpu *) (unsigned long)msg->ap_inst; struct mtk_mdp_ctx *ctx; vpu->failure = msg->status; if (!vpu->failure) { switch (msg_id) { case VPU_MDP_INIT_ACK: mtk_mdp_vpu_handle_init_ack(data); break; case VPU_MDP_DEINIT_ACK: case VPU_MDP_PROCESS_ACK: break; default: ctx = vpu_to_ctx(vpu); dev_err(&ctx->mdp_dev->pdev->dev, "handle unknown ipi msg:0x%x\n", msg_id); break; } } else { ctx = vpu_to_ctx(vpu); mtk_mdp_dbg(0, "[%d]:msg 0x%x, failure:%d", ctx->id, msg_id, vpu->failure); } } int mtk_mdp_vpu_register(struct platform_device *pdev) { struct mtk_mdp_dev *mdp = platform_get_drvdata(pdev); int err; err = vpu_ipi_register(mdp->vpu_dev, IPI_MDP, mtk_mdp_vpu_ipi_handler, "mdp_vpu", NULL); if (err) dev_err(&mdp->pdev->dev, "vpu_ipi_registration fail status=%d\n", err); return err; } static int mtk_mdp_vpu_send_msg(void *msg, int len, struct mtk_mdp_vpu *vpu, int id) { struct mtk_mdp_ctx *ctx = vpu_to_ctx(vpu); int err; if (!vpu->pdev) { mtk_mdp_dbg(1, "[%d]:vpu pdev is NULL", ctx->id); return -EINVAL; } mutex_lock(&ctx->mdp_dev->vpulock); err = vpu_ipi_send(vpu->pdev, (enum ipi_id)id, msg, len); if (err) dev_err(&ctx->mdp_dev->pdev->dev, "vpu_ipi_send fail status %d\n", err); mutex_unlock(&ctx->mdp_dev->vpulock); return err; } static int mtk_mdp_vpu_send_ap_ipi(struct mtk_mdp_vpu *vpu, uint32_t msg_id) { int err; struct mdp_ipi_comm msg; msg.msg_id = msg_id; msg.ipi_id = IPI_MDP; msg.vpu_inst_addr = vpu->inst_addr; msg.ap_inst = (unsigned long)vpu; err = mtk_mdp_vpu_send_msg((void *)&msg, sizeof(msg), vpu, IPI_MDP); if (!err && vpu->failure) err = -EINVAL; return err; } int mtk_mdp_vpu_init(struct mtk_mdp_vpu *vpu) { int err; struct mdp_ipi_init msg; struct mtk_mdp_ctx *ctx = vpu_to_ctx(vpu); vpu->pdev = ctx->mdp_dev->vpu_dev; msg.msg_id = AP_MDP_INIT; msg.ipi_id = IPI_MDP; msg.ap_inst = (unsigned long)vpu; err = mtk_mdp_vpu_send_msg((void *)&msg, sizeof(msg), vpu, IPI_MDP); if (!err && vpu->failure) err = -EINVAL; return err; } int mtk_mdp_vpu_deinit(struct mtk_mdp_vpu *vpu) { return mtk_mdp_vpu_send_ap_ipi(vpu, AP_MDP_DEINIT); } int mtk_mdp_vpu_process(struct mtk_mdp_vpu *vpu) { return mtk_mdp_vpu_send_ap_ipi(vpu, AP_MDP_PROCESS); } |