140 lines
3.5 KiB
C
140 lines
3.5 KiB
C
|
/* Copyright (c) 2015, The Linux Foundation. All rights reserved.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2 and
|
||
|
|
* only 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 <linux/kernel.h>
|
||
|
|
#include <linux/device.h>
|
||
|
|
#include <linux/of.h>
|
||
|
|
#include <soc/qcom/scm.h>
|
||
|
|
#include <soc/qcom/msm_tz_smmu.h>
|
||
|
|
|
||
|
|
enum tz_smmu_device_id {
|
||
|
|
TZ_DEVICE_START = 0,
|
||
|
|
TZ_DEVICE_VIDEO = 0,
|
||
|
|
TZ_DEVICE_MDSS,
|
||
|
|
TZ_DEVICE_LPASS,
|
||
|
|
TZ_DEVICE_MDSS_BOOT,
|
||
|
|
TZ_DEVICE_USB1_HS,
|
||
|
|
TZ_DEVICE_OCMEM,
|
||
|
|
TZ_DEVICE_LPASS_CORE,
|
||
|
|
TZ_DEVICE_VPU,
|
||
|
|
TZ_DEVICE_COPSS_SMMU,
|
||
|
|
TZ_DEVICE_USB3_0,
|
||
|
|
TZ_DEVICE_USB3_1,
|
||
|
|
TZ_DEVICE_PCIE_0,
|
||
|
|
TZ_DEVICE_PCIE_1,
|
||
|
|
TZ_DEVICE_BCSS,
|
||
|
|
TZ_DEVICE_VCAP,
|
||
|
|
TZ_DEVICE_PCIE20,
|
||
|
|
TZ_DEVICE_IPA,
|
||
|
|
TZ_DEVICE_APPS,
|
||
|
|
TZ_DEVICE_GPU,
|
||
|
|
TZ_DEVICE_UFS,
|
||
|
|
TZ_DEVICE_ICE,
|
||
|
|
TZ_DEVICE_ROT,
|
||
|
|
TZ_DEVICE_VFE,
|
||
|
|
TZ_DEVICE_ANOC0,
|
||
|
|
TZ_DEVICE_ANOC1,
|
||
|
|
TZ_DEVICE_ANOC2,
|
||
|
|
TZ_DEVICE_CPP,
|
||
|
|
TZ_DEVICE_JPEG,
|
||
|
|
TZ_DEVICE_MAX,
|
||
|
|
};
|
||
|
|
|
||
|
|
static const char * const device_id_mappings[] = {
|
||
|
|
[TZ_DEVICE_VIDEO] = "VIDEO",
|
||
|
|
[TZ_DEVICE_MDSS] = "MDSS",
|
||
|
|
[TZ_DEVICE_LPASS] = "LPASS",
|
||
|
|
[TZ_DEVICE_MDSS_BOOT] = "MDSS_BOOT",
|
||
|
|
[TZ_DEVICE_USB1_HS] = "USB1_HS",
|
||
|
|
[TZ_DEVICE_OCMEM] = "OCMEM",
|
||
|
|
[TZ_DEVICE_LPASS_CORE] = "LPASS_CORE",
|
||
|
|
[TZ_DEVICE_VPU] = "VPU",
|
||
|
|
[TZ_DEVICE_COPSS_SMMU] = "COPSS_SMMU",
|
||
|
|
[TZ_DEVICE_USB3_0] = "USB3_0",
|
||
|
|
[TZ_DEVICE_USB3_1] = "USB3_1",
|
||
|
|
[TZ_DEVICE_PCIE_0] = "PCIE_0",
|
||
|
|
[TZ_DEVICE_PCIE_1] = "PCIE_1",
|
||
|
|
[TZ_DEVICE_BCSS] = "BCSS",
|
||
|
|
[TZ_DEVICE_VCAP] = "VCAP",
|
||
|
|
[TZ_DEVICE_PCIE20] = "PCIE20",
|
||
|
|
[TZ_DEVICE_IPA] = "IPA",
|
||
|
|
[TZ_DEVICE_APPS] = "APPS",
|
||
|
|
[TZ_DEVICE_GPU] = "GPU",
|
||
|
|
[TZ_DEVICE_UFS] = "UFS",
|
||
|
|
[TZ_DEVICE_ICE] = "ICE",
|
||
|
|
[TZ_DEVICE_ROT] = "ROT",
|
||
|
|
[TZ_DEVICE_VFE] = "VFE",
|
||
|
|
[TZ_DEVICE_ANOC0] = "ANOC0",
|
||
|
|
[TZ_DEVICE_ANOC1] = "ANOC1",
|
||
|
|
[TZ_DEVICE_ANOC2] = "ANOC2",
|
||
|
|
[TZ_DEVICE_CPP] = "CPP",
|
||
|
|
[TZ_DEVICE_JPEG] = "JPEG",
|
||
|
|
};
|
||
|
|
|
||
|
|
#define MAX_DEVICE_ID_NAME_LEN 20
|
||
|
|
|
||
|
|
#define TZ_SMMU_PREPARE_ATOS_ID 0x21
|
||
|
|
#define TZ_SMMU_ATOS_START 1
|
||
|
|
#define TZ_SMMU_ATOS_END 0
|
||
|
|
|
||
|
|
static enum tz_smmu_device_id __dev_to_device_id(struct device *dev)
|
||
|
|
{
|
||
|
|
const char *device_id;
|
||
|
|
enum tz_smmu_device_id iter;
|
||
|
|
|
||
|
|
if (of_property_read_string(dev->of_node, "qcom,tz-device-id",
|
||
|
|
&device_id)) {
|
||
|
|
dev_err(dev, "no qcom,device-id property\n");
|
||
|
|
return TZ_DEVICE_MAX;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (iter = TZ_DEVICE_START; iter < TZ_DEVICE_MAX; iter++)
|
||
|
|
if (!strcmp(device_id_mappings[iter], device_id))
|
||
|
|
return iter;
|
||
|
|
|
||
|
|
return TZ_DEVICE_MAX;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int __msm_tz_smmu_atos(struct device *dev, int cb_num, int operation)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
struct scm_desc desc = {0};
|
||
|
|
enum tz_smmu_device_id devid = __dev_to_device_id(dev);
|
||
|
|
|
||
|
|
if (devid == TZ_DEVICE_MAX)
|
||
|
|
return -ENODEV;
|
||
|
|
|
||
|
|
desc.args[0] = devid;
|
||
|
|
desc.args[1] = cb_num;
|
||
|
|
desc.args[2] = operation;
|
||
|
|
desc.arginfo = SCM_ARGS(3, SCM_VAL, SCM_VAL, SCM_VAL);
|
||
|
|
|
||
|
|
ret = scm_call2(SCM_SIP_FNID(SCM_SVC_MP, TZ_SMMU_PREPARE_ATOS_ID),
|
||
|
|
&desc);
|
||
|
|
if (ret)
|
||
|
|
pr_info("%s: TZ SMMU ATOS %s failed, ret = %d\n",
|
||
|
|
__func__,
|
||
|
|
operation == TZ_SMMU_ATOS_START ? "start" : "end",
|
||
|
|
ret);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
int msm_tz_smmu_atos_start(struct device *dev, int cb_num)
|
||
|
|
{
|
||
|
|
return __msm_tz_smmu_atos(dev, cb_num, TZ_SMMU_ATOS_START);
|
||
|
|
}
|
||
|
|
|
||
|
|
int msm_tz_smmu_atos_end(struct device *dev, int cb_num)
|
||
|
|
{
|
||
|
|
return __msm_tz_smmu_atos(dev, cb_num, TZ_SMMU_ATOS_END);
|
||
|
|
}
|