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1802d0beec
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
138 lines
3.2 KiB
C
138 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2015-2016 MediaTek Inc.
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* Author: Houlong Wei <houlong.wei@mediatek.com>
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* Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
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*/
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#include "mtk_mdp_core.h"
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#include "mtk_mdp_vpu.h"
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#include "mtk_vpu.h"
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static inline struct mtk_mdp_ctx *vpu_to_ctx(struct mtk_mdp_vpu *vpu)
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{
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return container_of(vpu, struct mtk_mdp_ctx, vpu);
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}
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static void mtk_mdp_vpu_handle_init_ack(struct mdp_ipi_comm_ack *msg)
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{
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struct mtk_mdp_vpu *vpu = (struct mtk_mdp_vpu *)
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(unsigned long)msg->ap_inst;
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/* mapping VPU address to kernel virtual address */
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vpu->vsi = (struct mdp_process_vsi *)
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vpu_mapping_dm_addr(vpu->pdev, msg->vpu_inst_addr);
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vpu->inst_addr = msg->vpu_inst_addr;
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}
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static void mtk_mdp_vpu_ipi_handler(void *data, unsigned int len, void *priv)
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{
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unsigned int msg_id = *(unsigned int *)data;
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struct mdp_ipi_comm_ack *msg = (struct mdp_ipi_comm_ack *)data;
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struct mtk_mdp_vpu *vpu = (struct mtk_mdp_vpu *)
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(unsigned long)msg->ap_inst;
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struct mtk_mdp_ctx *ctx;
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vpu->failure = msg->status;
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if (!vpu->failure) {
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switch (msg_id) {
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case VPU_MDP_INIT_ACK:
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mtk_mdp_vpu_handle_init_ack(data);
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break;
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case VPU_MDP_DEINIT_ACK:
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case VPU_MDP_PROCESS_ACK:
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break;
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default:
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ctx = vpu_to_ctx(vpu);
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dev_err(&ctx->mdp_dev->pdev->dev,
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"handle unknown ipi msg:0x%x\n",
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msg_id);
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break;
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}
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} else {
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ctx = vpu_to_ctx(vpu);
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mtk_mdp_dbg(0, "[%d]:msg 0x%x, failure:%d", ctx->id,
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msg_id, vpu->failure);
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}
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}
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int mtk_mdp_vpu_register(struct platform_device *pdev)
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{
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struct mtk_mdp_dev *mdp = platform_get_drvdata(pdev);
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int err;
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err = vpu_ipi_register(mdp->vpu_dev, IPI_MDP,
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mtk_mdp_vpu_ipi_handler, "mdp_vpu", NULL);
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if (err)
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dev_err(&mdp->pdev->dev,
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"vpu_ipi_registration fail status=%d\n", err);
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return err;
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}
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static int mtk_mdp_vpu_send_msg(void *msg, int len, struct mtk_mdp_vpu *vpu,
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int id)
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{
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struct mtk_mdp_ctx *ctx = vpu_to_ctx(vpu);
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int err;
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if (!vpu->pdev) {
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mtk_mdp_dbg(1, "[%d]:vpu pdev is NULL", ctx->id);
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return -EINVAL;
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}
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mutex_lock(&ctx->mdp_dev->vpulock);
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err = vpu_ipi_send(vpu->pdev, (enum ipi_id)id, msg, len);
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if (err)
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dev_err(&ctx->mdp_dev->pdev->dev,
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"vpu_ipi_send fail status %d\n", err);
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mutex_unlock(&ctx->mdp_dev->vpulock);
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return err;
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}
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static int mtk_mdp_vpu_send_ap_ipi(struct mtk_mdp_vpu *vpu, uint32_t msg_id)
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{
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int err;
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struct mdp_ipi_comm msg;
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msg.msg_id = msg_id;
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msg.ipi_id = IPI_MDP;
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msg.vpu_inst_addr = vpu->inst_addr;
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msg.ap_inst = (unsigned long)vpu;
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err = mtk_mdp_vpu_send_msg((void *)&msg, sizeof(msg), vpu, IPI_MDP);
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if (!err && vpu->failure)
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err = -EINVAL;
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return err;
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}
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int mtk_mdp_vpu_init(struct mtk_mdp_vpu *vpu)
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{
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int err;
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struct mdp_ipi_init msg;
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struct mtk_mdp_ctx *ctx = vpu_to_ctx(vpu);
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vpu->pdev = ctx->mdp_dev->vpu_dev;
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msg.msg_id = AP_MDP_INIT;
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msg.ipi_id = IPI_MDP;
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msg.ap_inst = (unsigned long)vpu;
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err = mtk_mdp_vpu_send_msg((void *)&msg, sizeof(msg), vpu, IPI_MDP);
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if (!err && vpu->failure)
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err = -EINVAL;
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return err;
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}
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int mtk_mdp_vpu_deinit(struct mtk_mdp_vpu *vpu)
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{
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return mtk_mdp_vpu_send_ap_ipi(vpu, AP_MDP_DEINIT);
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}
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int mtk_mdp_vpu_process(struct mtk_mdp_vpu *vpu)
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{
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return mtk_mdp_vpu_send_ap_ipi(vpu, AP_MDP_PROCESS);
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}
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