316 lines
8.6 KiB
C
316 lines
8.6 KiB
C
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/*
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* Tegra Host1x Virtualization client common driver
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*
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* Copyright (c) 2014-2018, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <linux/of_platform.h>
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#include <soc/tegra/chip-id.h>
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#include <linux/module.h>
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#if defined(CONFIG_ARCH_TEGRA_210_SOC)
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#include <soc/tegra/fuse.h>
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#endif
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#include "dev.h"
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#include "bus_client.h"
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#include "nvhost_acm.h"
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#include "vhost.h"
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#include "t124/t124.h"
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#include "t210/t210.h"
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#ifdef CONFIG_ARCH_TEGRA_18x_SOC
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#include "t186/t186.h"
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#endif
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#ifdef CONFIG_TEGRA_T19X_GRHOST
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#include "t194/t194.h"
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#endif
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#define TEGRA_ISPB_BASE 0x54680000
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#define TEGRA_ISP_BASE 0x54600000
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static int nvhost_vhost_client_finalize_poweron(struct platform_device *pdev)
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{
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return 0;
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}
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static int nvhost_vhost_client_prepare_poweroff(struct platform_device *pdev)
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{
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return 0;
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}
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static struct of_device_id tegra_client_of_match[] = {
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#ifdef CONFIG_TEGRA_GRHOST_VIC
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{ .compatible = "nvidia,tegra124-vhost-vic",
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.data = (struct nvhost_device_data *)&t124_vic_info },
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{ .compatible = "nvidia,tegra210-vhost-vic",
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.data = (struct nvhost_device_data *)&t21_vic_info },
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#endif
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#if defined(CONFIG_VIDEO_TEGRA_VI) || defined(CONFIG_VIDEO_TEGRA_VI_MODULE)
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{ .compatible = "nvidia,tegra124-vhost-vi",
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.data = (struct nvhost_device_data *)&t124_vi_info },
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{ .compatible = "nvidia,tegra210-vhost-vi",
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.data = (struct nvhost_device_data *)&t21_vi_info },
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#endif
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#ifdef CONFIG_TEGRA_GRHOST_ISP
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{ .compatible = "nvidia,tegra124-vhost-isp",
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.data = (struct nvhost_device_data *)&t124_isp_info },
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{ .compatible = "nvidia,tegra210-vhost-isp",
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.data = (struct nvhost_device_data *)&t21_isp_info },
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#endif
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#if defined(CONFIG_TEGRA_GRHOST_NVENC)
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{ .compatible = "nvidia,tegra124-vhost-msenc",
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.data = (struct nvhost_device_data *)&t124_msenc_info },
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#endif
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#if defined(CONFIG_TEGRA_GRHOST_NVENC)
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{ .compatible = "nvidia,tegra210-vhost-nvenc",
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.data = (struct nvhost_device_data *)&t21_msenc_info },
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#endif
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#if defined(CONFIG_TEGRA_GRHOST_NVDEC)
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{ .compatible = "nvidia,tegra210-vhost-nvdec",
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.data = (struct nvhost_device_data *)&t21_nvdec_info },
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#endif
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#if defined(CONFIG_TEGRA_GRHOST_NVJPG)
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{ .compatible = "nvidia,tegra210-vhost-nvjpg",
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.data = (struct nvhost_device_data *)&t21_nvjpg_info },
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#endif
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#ifdef CONFIG_ARCH_TEGRA_18x_SOC
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#ifdef CONFIG_TEGRA_GRHOST_VIC
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{ .compatible = "nvidia,tegra186-vhost-vic",
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.data = (struct nvhost_device_data *)&t18_vic_info },
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#endif
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#if defined(CONFIG_VIDEO_TEGRA_VI) || defined(CONFIG_VIDEO_TEGRA_VI_MODULE)
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{ .compatible = "nvidia,tegra186-vhost-vi",
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.data = (struct nvhost_device_data *)&t18_vi_info },
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#endif
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#ifdef CONFIG_TEGRA_GRHOST_ISP
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{ .compatible = "nvidia,tegra186-vhost-isp",
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.data = (struct nvhost_device_data *)&t18_isp_info },
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#endif
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#if defined(CONFIG_TEGRA_GRHOST_NVENC)
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{ .compatible = "nvidia,tegra186-vhost-nvenc",
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.data = (struct nvhost_device_data *)&t18_msenc_info },
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#endif
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#if defined(CONFIG_TEGRA_GRHOST_NVDEC)
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{ .compatible = "nvidia,tegra186-vhost-nvdec",
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.data = (struct nvhost_device_data *)&t18_nvdec_info },
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#endif
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#if defined(CONFIG_TEGRA_GRHOST_NVJPG)
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{ .compatible = "nvidia,tegra186-vhost-nvjpg",
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.data = (struct nvhost_device_data *)&t18_nvjpg_info },
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#endif
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#if defined(CONFIG_TEGRA_GRHOST_NVCSI)
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{ .compatible = "nvidia,tegra186-vhost-nvcsi",
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.data = (struct nvhost_device_data *)&t18_nvcsi_info },
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#endif
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#ifdef CONFIG_TEGRA_T19X_GRHOST
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#if defined(CONFIG_TEGRA_GRHOST_VIC)
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{ .compatible = "nvidia,tegra194-vhost-vic",
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.data = (struct nvhost_device_data *)&t19_vic_info },
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#endif
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#if defined(CONFIG_TEGRA_GRHOST_NVJPG)
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{ .compatible = "nvidia,tegra194-vhost-nvjpg",
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.data = (struct nvhost_device_data *)&t19_nvjpg_info },
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#endif
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#if defined(CONFIG_TEGRA_GRHOST_NVENC)
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{ .compatible = "nvidia,tegra194-vhost-nvenc",
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.data = (struct nvhost_device_data *)&t19_msenc_info,
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.name = "nvenc" },
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{ .compatible = "nvidia,tegra194-vhost-nvenc",
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.data = (struct nvhost_device_data *)&t19_nvenc1_info,
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.name = "nvenc1" },
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#endif
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#if defined(CONFIG_TEGRA_GRHOST_NVDEC)
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{ .compatible = "nvidia,tegra194-vhost-nvdec",
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.data = (struct nvhost_device_data *)&t19_nvdec_info,
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.name = "nvdec" },
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{ .compatible = "nvidia,tegra194-vhost-nvdec",
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.data = (struct nvhost_device_data *)&t19_nvdec1_info,
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.name = "nvdec1" },
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#endif
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#if defined(CONFIG_VIDEO_TEGRA_VI) || defined(CONFIG_VIDEO_TEGRA_VI_MODULE)
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{ .compatible = "nvidia,tegra194-vhost-vi",
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.data = (struct nvhost_device_data *)&t19_vi5_info },
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#endif
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#ifdef CONFIG_TEGRA_GRHOST_ISP
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{ .compatible = "nvidia,tegra194-vhost-isp",
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.data = (struct nvhost_device_data *)&t19_isp5_info },
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#endif
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#if defined(CONFIG_TEGRA_GRHOST_NVCSI)
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{ .compatible = "nvidia,tegra194-vhost-nvcsi",
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.data = (struct nvhost_device_data *)&t19_nvcsi_info },
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#endif
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#endif
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#endif
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{ },
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};
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static int vhost_client_probe(struct platform_device *dev)
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{
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int err = 0;
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struct nvhost_device_data *pdata = NULL;
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if (dev->dev.of_node) {
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const struct of_device_id *match;
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match = of_match_device(tegra_client_of_match, &dev->dev);
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if (!match)
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return -ENODEV;
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pdata = (struct nvhost_device_data *)match->data;
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#ifdef CONFIG_TEGRA_GRHOST_ISP
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/* If ISP, need to differentiate ISP.0 from ISP.1 */
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if (nvhost_is_210() || nvhost_is_124()) {
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int dev_id = 0;
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char engine[4];
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if ((sscanf(dev->name, "%x.%3s", &dev_id, engine) == 2)
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&& (strcmp(engine, "isp") == 0)) {
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if (nvhost_is_124()) {
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if (dev_id == TEGRA_ISP_BASE)
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pdata = &t124_isp_info;
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else if (dev_id == TEGRA_ISPB_BASE)
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pdata = &t124_ispb_info;
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} else if (nvhost_is_210()) {
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if (dev_id == TEGRA_ISP_BASE)
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pdata = &t21_isp_info;
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else if (dev_id == TEGRA_ISPB_BASE)
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pdata = &t21_ispb_info;
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}
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}
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}
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#endif
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}
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if (!pdata) {
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dev_err(&dev->dev, "no platform data\n");
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return -ENODATA;
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}
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pdata->virtual_dev = true;
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nvhost_dbg_fn("dev:%p pdata:%p", dev, pdata);
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pdata->pdev = dev;
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mutex_init(&pdata->lock);
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platform_set_drvdata(dev, pdata);
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/* Disable power management when virtual */
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pdata->can_powergate = false;
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pdata->busy = NULL;
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pdata->idle = NULL;
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pdata->scaling_init = NULL;
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pdata->finalize_poweron = nvhost_vhost_client_finalize_poweron;
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pdata->prepare_poweroff = nvhost_vhost_client_prepare_poweroff;
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pdata->poweron_reset = false;
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pdata->engine_cg_regs = NULL;
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pdata->keepalive = false;
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pdata->hw_init = NULL;
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/* in virtualization context isolation is necessary */
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pdata->isolate_contexts = true;
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dev->dev.platform_data = NULL;
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if (pdata->pre_virt_init)
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err = pdata->pre_virt_init(dev);
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if (err)
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goto early_probe_fail;
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nvhost_module_init(dev);
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err = nvhost_virt_init(dev, pdata->moduleid);
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if (err) {
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dev_err(&dev->dev, "nvhost_virt_init failed for %s",
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dev->name);
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pm_runtime_put(&dev->dev);
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return err;
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}
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err = nvhost_client_device_init(dev);
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if (err) {
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dev_err(&dev->dev, "failed to init client device for %s",
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dev->name);
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pm_runtime_put(&dev->dev);
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return err;
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}
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if (!err && pdata->post_virt_init)
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err = pdata->post_virt_init(dev);
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early_probe_fail:
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if (err) {
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if (err != -EPROBE_DEFER) {
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dev_err(&dev->dev,
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"failed to perform engine specific init for %s",
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dev->name);
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}
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pm_runtime_put(&dev->dev);
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return err;
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}
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return err;
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}
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static int __exit vhost_client_remove(struct platform_device *dev)
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{
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#ifdef CONFIG_PM
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pm_runtime_put(&dev->dev);
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pm_runtime_disable(&dev->dev);
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#endif
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return 0;
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}
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static struct platform_device_id client_id_table[] = {
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{ .name = "vic03" },
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{ .name = "vi" },
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{ .name = "isp" },
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{ .name = "msenc" },
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{},
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};
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static struct platform_driver client_driver = {
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.probe = vhost_client_probe,
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.remove = __exit_p(vhost_client_remove),
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.driver = {
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.owner = THIS_MODULE,
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.name = "vhost-client",
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#ifdef CONFIG_OF
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.of_match_table = tegra_client_of_match,
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#endif
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#ifdef CONFIG_PM
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.pm = &nvhost_module_pm_ops,
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#endif
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.suppress_bind_attrs = true,
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},
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.id_table = client_id_table,
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};
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static int __init vhost_client_init(void)
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{
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return platform_driver_register(&client_driver);
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}
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static void __exit vhost_client_exit(void)
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{
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platform_driver_unregister(&client_driver);
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}
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module_init(vhost_client_init);
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module_exit(vhost_client_exit);
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