blob: cb411eb85ee4055a2fd2552ac5d7d18d7a96add9 [file] [log] [blame]
/*
* Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
* Copyright (C) 2017 Linaro Ltd.
*
* 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/clk.h>
#include <linux/init.h>
#include <linux/ioctl.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/pm_runtime.h>
#include <media/videobuf2-v4l2.h>
#include <media/v4l2-mem2mem.h>
#include <media/v4l2-ioctl.h>
#include "core.h"
#include "vdec.h"
#include "venc.h"
#include "firmware.h"
static void venus_event_notify(struct venus_core *core, u32 event)
{
struct venus_inst *inst;
switch (event) {
case EVT_SYS_WATCHDOG_TIMEOUT:
case EVT_SYS_ERROR:
break;
default:
return;
}
mutex_lock(&core->lock);
core->sys_error = true;
list_for_each_entry(inst, &core->instances, list)
inst->ops->event_notify(inst, EVT_SESSION_ERROR, NULL);
mutex_unlock(&core->lock);
disable_irq_nosync(core->irq);
/*
* Delay recovery to ensure venus has completed any pending cache
* operations. Without this sleep, we see device reset when firmware is
* unloaded after a system error.
*/
schedule_delayed_work(&core->work, msecs_to_jiffies(100));
}
static const struct hfi_core_ops venus_core_ops = {
.event_notify = venus_event_notify,
};
static void venus_sys_error_handler(struct work_struct *work)
{
struct venus_core *core =
container_of(work, struct venus_core, work.work);
int ret = 0;
dev_warn(core->dev, "system error has occurred, starting recovery!\n");
pm_runtime_get_sync(core->dev);
hfi_core_deinit(core, true);
hfi_destroy(core);
mutex_lock(&core->lock);
venus_shutdown(core);
pm_runtime_put_sync(core->dev);
ret |= hfi_create(core, &venus_core_ops);
pm_runtime_get_sync(core->dev);
ret |= venus_boot(core);
ret |= hfi_core_resume(core, true);
enable_irq(core->irq);
mutex_unlock(&core->lock);
ret |= hfi_core_init(core);
pm_runtime_put_sync(core->dev);
if (ret) {
disable_irq_nosync(core->irq);
dev_warn(core->dev, "recovery failed (%d)\n", ret);
schedule_delayed_work(&core->work, msecs_to_jiffies(10));
return;
}
mutex_lock(&core->lock);
core->sys_error = false;
mutex_unlock(&core->lock);
}
static int venus_clks_get(struct venus_core *core)
{
const struct venus_resources *res = core->res;
struct device *dev = core->dev;
unsigned int i;
for (i = 0; i < res->clks_num; i++) {
core->clks[i] = devm_clk_get(dev, res->clks[i]);
if (IS_ERR(core->clks[i]))
return PTR_ERR(core->clks[i]);
}
return 0;
}
static int venus_clks_enable(struct venus_core *core)
{
const struct venus_resources *res = core->res;
unsigned int i;
int ret;
for (i = 0; i < res->clks_num; i++) {
ret = clk_prepare_enable(core->clks[i]);
if (ret)
goto err;
}
return 0;
err:
while (i--)
clk_disable_unprepare(core->clks[i]);
return ret;
}
static void venus_clks_disable(struct venus_core *core)
{
const struct venus_resources *res = core->res;
unsigned int i = res->clks_num;
while (i--)
clk_disable_unprepare(core->clks[i]);
}
static u32 to_v4l2_codec_type(u32 codec)
{
switch (codec) {
case HFI_VIDEO_CODEC_H264:
return V4L2_PIX_FMT_H264;
case HFI_VIDEO_CODEC_H263:
return V4L2_PIX_FMT_H263;
case HFI_VIDEO_CODEC_MPEG1:
return V4L2_PIX_FMT_MPEG1;
case HFI_VIDEO_CODEC_MPEG2:
return V4L2_PIX_FMT_MPEG2;
case HFI_VIDEO_CODEC_MPEG4:
return V4L2_PIX_FMT_MPEG4;
case HFI_VIDEO_CODEC_VC1:
return V4L2_PIX_FMT_VC1_ANNEX_G;
case HFI_VIDEO_CODEC_VP8:
return V4L2_PIX_FMT_VP8;
case HFI_VIDEO_CODEC_VP9:
return V4L2_PIX_FMT_VP9;
case HFI_VIDEO_CODEC_DIVX:
case HFI_VIDEO_CODEC_DIVX_311:
return V4L2_PIX_FMT_XVID;
default:
return 0;
}
}
static int venus_enumerate_codecs(struct venus_core *core, u32 type)
{
const struct hfi_inst_ops dummy_ops = {};
struct venus_inst *inst;
u32 codec, codecs;
unsigned int i;
int ret;
if (core->res->hfi_version != HFI_VERSION_1XX)
return 0;
inst = kzalloc(sizeof(*inst), GFP_KERNEL);
if (!inst)
return -ENOMEM;
mutex_init(&inst->lock);
inst->core = core;
inst->session_type = type;
if (type == VIDC_SESSION_TYPE_DEC)
codecs = core->dec_codecs;
else
codecs = core->enc_codecs;
ret = hfi_session_create(inst, &dummy_ops);
if (ret)
goto err;
for (i = 0; i < MAX_CODEC_NUM; i++) {
codec = (1 << i) & codecs;
if (!codec)
continue;
ret = hfi_session_init(inst, to_v4l2_codec_type(codec));
if (ret)
goto done;
ret = hfi_session_deinit(inst);
if (ret)
goto done;
}
done:
hfi_session_destroy(inst);
err:
mutex_destroy(&inst->lock);
kfree(inst);
return ret;
}
static int venus_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct venus_core *core;
struct resource *r;
int ret;
core = devm_kzalloc(dev, sizeof(*core), GFP_KERNEL);
if (!core)
return -ENOMEM;
core->dev = dev;
platform_set_drvdata(pdev, core);
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
core->base = devm_ioremap_resource(dev, r);
if (IS_ERR(core->base))
return PTR_ERR(core->base);
core->irq = platform_get_irq(pdev, 0);
if (core->irq < 0)
return core->irq;
core->res = of_device_get_match_data(dev);
if (!core->res)
return -ENODEV;
ret = venus_clks_get(core);
if (ret)
return ret;
ret = dma_set_mask_and_coherent(dev, core->res->dma_mask);
if (ret)
return ret;
if (!dev->dma_parms) {
dev->dma_parms = devm_kzalloc(dev, sizeof(*dev->dma_parms),
GFP_KERNEL);
if (!dev->dma_parms)
return -ENOMEM;
}
dma_set_max_seg_size(dev, DMA_BIT_MASK(32));
INIT_LIST_HEAD(&core->instances);
mutex_init(&core->lock);
INIT_DELAYED_WORK(&core->work, venus_sys_error_handler);
ret = devm_request_threaded_irq(dev, core->irq, hfi_isr, hfi_isr_thread,
IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
"venus", core);
if (ret)
return ret;
ret = hfi_create(core, &venus_core_ops);
if (ret)
return ret;
pm_runtime_enable(dev);
ret = pm_runtime_get_sync(dev);
if (ret < 0)
goto err_runtime_disable;
ret = of_platform_populate(dev->of_node, NULL, NULL, dev);
if (ret)
goto err_runtime_disable;
ret = venus_firmware_init(core);
if (ret)
goto err_runtime_disable;
ret = venus_boot(core);
if (ret)
goto err_runtime_disable;
ret = hfi_core_resume(core, true);
if (ret)
goto err_venus_shutdown;
ret = hfi_core_init(core);
if (ret)
goto err_venus_shutdown;
ret = venus_enumerate_codecs(core, VIDC_SESSION_TYPE_DEC);
if (ret)
goto err_venus_shutdown;
ret = venus_enumerate_codecs(core, VIDC_SESSION_TYPE_ENC);
if (ret)
goto err_venus_shutdown;
ret = v4l2_device_register(dev, &core->v4l2_dev);
if (ret)
goto err_core_deinit;
ret = pm_runtime_put_sync(dev);
if (ret)
goto err_dev_unregister;
return 0;
err_dev_unregister:
v4l2_device_unregister(&core->v4l2_dev);
err_core_deinit:
hfi_core_deinit(core, false);
err_venus_shutdown:
venus_shutdown(core);
err_runtime_disable:
pm_runtime_set_suspended(dev);
pm_runtime_disable(dev);
hfi_destroy(core);
return ret;
}
static int venus_remove(struct platform_device *pdev)
{
struct venus_core *core = platform_get_drvdata(pdev);
struct device *dev = core->dev;
int ret;
ret = pm_runtime_get_sync(dev);
WARN_ON(ret < 0);
ret = hfi_core_deinit(core, true);
WARN_ON(ret);
hfi_destroy(core);
venus_shutdown(core);
of_platform_depopulate(dev);
venus_firmware_deinit(core);
pm_runtime_put_sync(dev);
pm_runtime_disable(dev);
v4l2_device_unregister(&core->v4l2_dev);
return ret;
}
static __maybe_unused int venus_runtime_suspend(struct device *dev)
{
struct venus_core *core = dev_get_drvdata(dev);
int ret;
ret = hfi_core_suspend(core);
venus_clks_disable(core);
return ret;
}
static __maybe_unused int venus_runtime_resume(struct device *dev)
{
struct venus_core *core = dev_get_drvdata(dev);
int ret;
ret = venus_clks_enable(core);
if (ret)
return ret;
ret = hfi_core_resume(core, false);
if (ret)
goto err_clks_disable;
return 0;
err_clks_disable:
venus_clks_disable(core);
return ret;
}
static const struct dev_pm_ops venus_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
pm_runtime_force_resume)
SET_RUNTIME_PM_OPS(venus_runtime_suspend, venus_runtime_resume, NULL)
};
static const struct freq_tbl msm8916_freq_table[] = {
{ 352800, 228570000 }, /* 1920x1088 @ 30 + 1280x720 @ 30 */
{ 244800, 160000000 }, /* 1920x1088 @ 30 */
{ 108000, 100000000 }, /* 1280x720 @ 30 */
};
static const struct reg_val msm8916_reg_preset[] = {
{ 0xe0020, 0x05555556 },
{ 0xe0024, 0x05555556 },
{ 0x80124, 0x00000003 },
};
static const struct venus_resources msm8916_res = {
.freq_tbl = msm8916_freq_table,
.freq_tbl_size = ARRAY_SIZE(msm8916_freq_table),
.reg_tbl = msm8916_reg_preset,
.reg_tbl_size = ARRAY_SIZE(msm8916_reg_preset),
.clks = { "core", "iface", "bus", },
.clks_num = 3,
.max_load = 352800, /* 720p@30 + 1080p@30 */
.hfi_version = HFI_VERSION_1XX,
.vmem_id = VIDC_RESOURCE_NONE,
.vmem_size = 0,
.vmem_addr = 0,
.dma_mask = 0xddc00000 - 1,
.fwname = "qcom/venus-1.8/venus.mdt",
};
static const struct freq_tbl msm8996_freq_table[] = {
{ 1944000, 490000000 }, /* 4k UHD @ 60 */
{ 972000, 320000000 }, /* 4k UHD @ 30 */
{ 489600, 150000000 }, /* 1080p @ 60 */
{ 244800, 75000000 }, /* 1080p @ 30 */
};
static const struct reg_val msm8996_reg_preset[] = {
{ 0x80010, 0xffffffff },
{ 0x80018, 0x00001556 },
{ 0x8001C, 0x00001556 },
};
static const struct venus_resources msm8996_res = {
.freq_tbl = msm8996_freq_table,
.freq_tbl_size = ARRAY_SIZE(msm8996_freq_table),
.reg_tbl = msm8996_reg_preset,
.reg_tbl_size = ARRAY_SIZE(msm8996_reg_preset),
.clks = {"core", "iface", "bus", "mbus" },
.clks_num = 4,
.max_load = 2563200,
.hfi_version = HFI_VERSION_3XX,
.vmem_id = VIDC_RESOURCE_NONE,
.vmem_size = 0,
.vmem_addr = 0,
.dma_mask = 0xddc00000 - 1,
.fwname = "qcom/venus-4.2/venus.mdt",
};
static const struct freq_tbl sdm845_freq_table[] = {
{ 1944000, 380000000 }, /* 4k UHD @ 60 */
{ 972000, 320000000 }, /* 4k UHD @ 30 */
{ 489600, 200000000 }, /* 1080p @ 60 */
{ 244800, 100000000 }, /* 1080p @ 30 */
};
static const struct venus_resources sdm845_res = {
.freq_tbl = sdm845_freq_table,
.freq_tbl_size = ARRAY_SIZE(sdm845_freq_table),
.clks = {"core", "iface", "bus" },
.clks_num = 3,
.max_load = 2563200,
.hfi_version = HFI_VERSION_4XX,
.vmem_id = VIDC_RESOURCE_NONE,
.vmem_size = 0,
.vmem_addr = 0,
.dma_mask = 0xe0000000 - 1,
.fwname = "qcom/venus-5.2/venus.mdt",
};
static const struct of_device_id venus_dt_match[] = {
{ .compatible = "qcom,msm8916-venus", .data = &msm8916_res, },
{ .compatible = "qcom,msm8996-venus", .data = &msm8996_res, },
{ .compatible = "qcom,sdm845-venus", .data = &sdm845_res, },
{ }
};
MODULE_DEVICE_TABLE(of, venus_dt_match);
static struct platform_driver qcom_venus_driver = {
.probe = venus_probe,
.remove = venus_remove,
.driver = {
.name = "qcom-venus",
.of_match_table = venus_dt_match,
.pm = &venus_pm_ops,
},
};
module_platform_driver(qcom_venus_driver);
MODULE_ALIAS("platform:qcom-venus");
MODULE_DESCRIPTION("Qualcomm Venus video encoder and decoder driver");
MODULE_LICENSE("GPL v2");