mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 05:34:00 +08:00
669c6141ea
Fix smatch error: media-git/drivers/media/platform/mtk-mdp/mtk_mdp_vpu.c:100 mtk_mdp_vpu_send_msg() error: double unlock 'mutex:&ctx->mdp_dev->vpulock' Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
146 lines
3.6 KiB
C
146 lines
3.6 KiB
C
/*
|
|
* Copyright (c) 2015-2016 MediaTek Inc.
|
|
* Author: Houlong Wei <houlong.wei@mediatek.com>
|
|
* Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#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);
|
|
}
|