mirror of https://gitee.com/openkylin/linux.git
138 lines
3.2 KiB
C
138 lines
3.2 KiB
C
// 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(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)
|
|
{
|
|
unsigned int msg_id = *(unsigned int *)data;
|
|
struct mdp_ipi_comm_ack *msg = (struct mdp_ipi_comm_ack *)data;
|
|
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);
|
|
}
|