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drm/tegra: Register actmon for the nvenc client

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

Bug 4077910
Bug 3923137

Signed-off-by: Johnny Liu <johnliu@nvidia.com>
Change-Id: I70800bbc2ad37d69e9697a47a161e64c60dcb383
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2891911
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 03:30:05 +00:00
committed by mobile promotions
parent a557199c74
commit 16620428cd
1 changed files with 49 additions and 9 deletions
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56
drivers/gpu/drm/tegra/nvenc.c
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@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2021-2022, NVIDIA Corporation.
* Copyright (c) 2021-2023, NVIDIA CORPORATION & AFFILIATES. All Rights Reserved.
*/
#include <linux/clk.h>
@@ -20,9 +20,9 @@
#include "drm.h"
#include "falcon.h"
#include "util.h"
#include "vic.h"
#define NVENC_TFBIF_TRANSCFG 0x1844
#define NVENC_TFBIF_ACTMON_ACTIVE_WEIGHT 0x1854
struct nvenc_config {
const char *firmware;
@@ -55,6 +55,27 @@ static inline void nvenc_writel(struct nvenc *nvenc, u32 value, unsigned int off
writel(value, nvenc->regs + offset);
}
static int nvenc_set_rate(struct nvenc *nvenc, unsigned long rate)
{
struct host1x_client *client = &nvenc->client.base;
unsigned long dev_rate;
u32 weight;
int err;
err = clk_set_rate(nvenc->clk, rate);
if (err < 0)
return err;
dev_rate = clk_get_rate(nvenc->clk);
host1x_actmon_update_client_rate(client, dev_rate, &weight);
if (weight)
nvenc_writel(nvenc, weight, NVENC_TFBIF_ACTMON_ACTIVE_WEIGHT);
return 0;
}
static int nvenc_boot(struct nvenc *nvenc)
{
int err;
@@ -162,9 +183,18 @@ static int nvenc_exit(struct host1x_client *client)
return 0;
}
static unsigned long nvenc_get_rate(struct host1x_client *client)
{
struct platform_device *pdev = to_platform_device(client->dev);
struct nvenc *nvenc = platform_get_drvdata(pdev);
return clk_get_rate(nvenc->clk);
}
static const struct host1x_client_ops nvenc_client_ops = {
.init = nvenc_init,
.exit = nvenc_exit,
.get_rate = nvenc_get_rate,
};
static int nvenc_load_firmware(struct nvenc *nvenc)
@@ -404,12 +434,6 @@ static int nvenc_probe(struct platform_device *pdev)
return PTR_ERR(nvenc->clk);
}
err = clk_set_rate(nvenc->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)
@@ -442,6 +466,17 @@ static int nvenc_probe(struct platform_device *pdev)
goto exit_falcon;
}
err = host1x_actmon_register(&nvenc->client.base);
if (err < 0)
dev_info(&pdev->dev, "failed to register host1x actmon: %d\n", err);
/* Set default clock rate for nvenc and update count weight register */
err = nvenc_set_rate(nvenc, ULONG_MAX);
if (err < 0) {
dev_err(&pdev->dev, "failed to set clock rate\n");
return err;
}
pm_runtime_enable(dev);
pm_runtime_use_autosuspend(dev);
pm_runtime_set_autosuspend_delay(dev, 500);
@@ -461,6 +496,11 @@ static int nvenc_remove(struct platform_device *pdev)
pm_runtime_disable(&pdev->dev);
err = host1x_actmon_unregister(&nvenc->client.base);
if (err < 0)
dev_info(&pdev->dev, "failed to unregister host1x actmon: %d\n",
err);
err = host1x_client_unregister(&nvenc->client.base);
if (err < 0) {
dev_err(&pdev->dev, "failed to unregister host1x client: %d\n",