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drm/tegra: Register actmon for the nvdec client

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Register nvdec actmon to export the engine utilization information in
the debugfs.

Bug 200493763
Bug 3923137

Signed-off-by: Johnny Liu <johnliu@nvidia.com>
Change-Id: I6e445a4e4ce729f2a1af63ed95f4110916b1adb0
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2892036
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Johnny Liu
2023-04-21 07:18:22 +00:00
committed by mobile promotions
parent 9db84e035b
commit d5eff2f344
1 changed files with 64 additions and 8 deletions
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72
drivers/gpu/drm/tegra/nvdec.c
View File

@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2015-2022, NVIDIA Corporation.
* Copyright (c) 2015-2023, NVIDIA CORPORATION & AFFILIATES. All Rights Reserved.
*/
#include <linux/clk.h>
@@ -23,10 +23,13 @@
#include "falcon.h"
#include "riscv.h"
#include "util.h"
#include "vic.h"
#define NVDEC_FW_MTHD_ADDR_ACTMON_WEIGHT 0xC9U
#define NVDEC_FALCON_UCLASS_METHOD_OFFSET 0x40
#define NVDEC_FALCON_UCLASS_METHOD_DATA 0x44
#define NVDEC_FALCON_DEBUGINFO 0x1094
#define NVDEC_TFBIF_TRANSCFG 0x2c44
#define NVDEC_TFBIF_ACTMON_ACTIVE_WEIGHT 0x2c54
struct nvdec_config {
const char *firmware;
@@ -67,6 +70,37 @@ static inline void nvdec_writel(struct nvdec *nvdec, u32 value,
writel(value, nvdec->regs + offset);
}
static int nvdec_set_rate(struct nvdec *nvdec, unsigned long rate)
{
struct nvdec_config *config = nvdec->config;
struct host1x_client *client = &nvdec->client.base;
unsigned long dev_rate;
u32 weight;
int err;
err = clk_set_rate(nvdec->clks[0].clk, rate);
if (err < 0)
return err;
dev_rate = clk_get_rate(nvdec->clks[0].clk);
host1x_actmon_update_client_rate(client, dev_rate, &weight);
if (!weight)
return 0;
if (!config->has_riscv) {
nvdec_writel(nvdec, weight, NVDEC_TFBIF_ACTMON_ACTIVE_WEIGHT);
} else if (config->has_riscv) {
nvdec_writel(nvdec,
NVDEC_FW_MTHD_ADDR_ACTMON_WEIGHT,
NVDEC_FALCON_UCLASS_METHOD_OFFSET);
nvdec_writel(nvdec, weight, NVDEC_FALCON_UCLASS_METHOD_DATA);
}
return 0;
}
static int nvdec_boot_falcon(struct nvdec *nvdec)
{
int err;
@@ -232,9 +266,18 @@ static int nvdec_exit(struct host1x_client *client)
return 0;
}
static unsigned long nvdec_get_rate(struct host1x_client *client)
{
struct platform_device *pdev = to_platform_device(client->dev);
struct nvdec *nvdec = platform_get_drvdata(pdev);
return clk_get_rate(nvdec->clks[0].clk);
}
static const struct host1x_client_ops nvdec_client_ops = {
.init = nvdec_init,
.exit = nvdec_exit,
.get_rate = nvdec_get_rate,
};
static int nvdec_load_falcon_firmware(struct nvdec *nvdec)
@@ -325,6 +368,9 @@ static __maybe_unused int nvdec_runtime_resume(struct device *dev)
goto disable;
}
/* Configure proper count weight */
nvdec_set_rate(nvdec, clk_get_rate(nvdec->clks[0].clk));
return 0;
disable:
@@ -471,12 +517,6 @@ static int nvdec_probe(struct platform_device *pdev)
return err;
}
err = clk_set_rate(nvdec->clks[0].clk, ULONG_MAX);
if (err < 0) {
dev_err(&pdev->dev, "failed to set clock rate\n");
return err;
}
err = of_property_read_u32(dev->of_node, "nvidia,host1x-class", &host_class);
if (err < 0)
host_class = HOST1X_CLASS_NVDEC;
@@ -541,6 +581,17 @@ static int nvdec_probe(struct platform_device *pdev)
goto exit_falcon;
}
err = host1x_actmon_register(&nvdec->client.base);
if (err < 0)
dev_info(&pdev->dev, "failed to register host1x actmon: %d\n", err);
/* Set default clock rate for nvdec */
err = clk_set_rate(nvdec->clks[0].clk, ULONG_MAX);
if (err < 0) {
dev_err(&pdev->dev, "failed to set clock rate: %d\n", err);
return err;
}
pm_runtime_enable(dev);
pm_runtime_use_autosuspend(dev);
pm_runtime_set_autosuspend_delay(dev, 500);
@@ -560,6 +611,11 @@ static int nvdec_remove(struct platform_device *pdev)
pm_runtime_disable(&pdev->dev);
err = host1x_actmon_unregister(&nvdec->client.base);
if (err < 0)
dev_info(&pdev->dev, "failed to unregister host1x actmon: %d\n",
err);
err = host1x_client_unregister(&nvdec->client.base);
if (err < 0) {
dev_err(&pdev->dev, "failed to unregister host1x client: %d\n",