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host1x-emu: kmd: Add support for ACPI

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This change enable device probing for ACPI device.

Bug 5011544

Change-Id: Ibfc85be18b0d73e813f68c699e4baa3de9682b5d
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3276952
Signed-off-by: Amit Sharma <amisharma@nvidia.com>
(cherry picked from commit bbfa4c3afd2dd3856b01be1b15c3023549dd079b)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3272347
Reviewed-by: Arvind M <am@nvidia.com>
Reviewed-by: Mitch Harwell <mharwell@nvidia.com>
Reviewed-by: Ayush Kumar <ayushk@nvidia.com>
Reviewed-by: Amitabh Dutta <amitabhd@nvidia.com>
Reviewed-by: Vishal Thoke <vthoke@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Arvind M
2025-01-03 11:36:46 +00:00
committed by Jon Hunter
parent 7f006193a3
commit 4bf26c4247
2 changed files with 98 additions and 43 deletions
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59
drivers/gpu/host1x-emu/dev.c
View File

@@ -1,5 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
// SPDX-FileCopyrightText: Copyright (c) 2024-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
/*
* SPDX-FileCopyrightText: Copyright (c) 2024-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: GPL-2.0-only
*/
#include <nvidia/conftest.h>
#include <linux/clk.h>
#include <linux/delay.h>
@@ -7,6 +9,7 @@
#include <linux/io.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/acpi.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/pm_runtime.h>
@@ -36,6 +39,8 @@
#define HOST1X_SYNCPT_POOL_BASE(x) (x*2+0)
#define HOST1X_SYNCPT_POOL_SIZE(x) (x*2+1)
struct platform_device *host1x_def_pdev;
static const struct host1x_info host1xEmu_info = {
.nb_pts = 1024,
.init = host1xEMU_init,
@@ -101,6 +106,20 @@ static const struct of_device_id host1x_of_match[] = {
};
MODULE_DEVICE_TABLE(of, host1x_of_match);
static void *acpi_data[] = {
(void*)&host1xEmu_info, /*0x0*/
NULL,
};
static struct acpi_device_id tegra_emu_syncpt_acpi_match[] = {
{
.id = "NVDA300A",
.driver_data = 0,
},
{ },
};
MODULE_DEVICE_TABLE(acpi, tegra_emu_syncpt_acpi_match);
void host1x_sync_writel(struct host1x *host1x, u32 v, u32 r)
{
if (host1x->hv_syncpt_mem == true) {
@@ -219,12 +238,21 @@ static int host1x_get_syncpt_pools(struct host1x *host)
int ret;
int i;
if (ACPI_HANDLE(host->dev)) {
/*
* Set number of R/W pool as 1 for ACPI clients
* TODO: Make this based on host->info which is set
* based on platform.
*/
ret = 1;
} else {
ret = of_property_count_strings(np, "nvidia,syncpoint-pool-names");
if (ret < 0) {
/* No pools defined, only read only pool*/
dev_err(host->dev, "Host1x-EMU: Invalid nvidia,syncpoint-pool-names property: %d\n", ret);
ret = 0;
}
}
host->num_pools = ret;
/*
@@ -258,6 +286,14 @@ static int host1x_get_syncpt_pools(struct host1x *host)
for (i = 0; i < host->num_pools; i++) {
struct host1x_syncpt_pool *pool = &host->pools[i];
if (ACPI_HANDLE(host->dev)) {
/*
* TODO: Make this based on host->info which is set
* based on platform.
*/
pool->sp_base = 0;
pool->sp_end = host->syncpt_count;
} else {
ret = of_property_read_string_index(np, "nvidia,syncpoint-pool-names", i, &pool->name);
if (ret) {
dev_err(host->dev, "Host1x-EMU: Invalid nvidia,syncpoint-pool-names property: %d\n", ret);
@@ -275,6 +311,7 @@ static int host1x_get_syncpt_pools(struct host1x *host)
dev_err(host->dev, "Host1x-EMU: Error in read, invalid nvidia,syncpoint-pools property: %d\n", ret);
return ret;
}
}
pool->sp_end = pool->sp_base + pool->sp_end;
if (pool->sp_end > host->syncpt_count) {
@@ -290,10 +327,23 @@ static int host1x_probe(struct platform_device *pdev)
struct host1x *host;
host = devm_kzalloc(&pdev->dev, sizeof(*host), GFP_KERNEL);
if (!host)
if (!host) {
return -ENOMEM;
}
if (ACPI_HANDLE(&pdev->dev)) {
const struct acpi_device_id *match;
match = acpi_match_device(tegra_emu_syncpt_acpi_match, &pdev->dev);
if (match == NULL) {
return -ENODEV;
}
host1x_def_pdev = pdev;
host->info = (struct host1x_info *)acpi_data[match->driver_data];
}else {
host->info = of_device_get_match_data(&pdev->dev);
}
if (host->info == NULL) {
dev_err(&pdev->dev, "Host1x-EMU: platform match data not found\n");
return -EINVAL;
@@ -345,11 +395,13 @@ static int host1x_probe(struct platform_device *pdev)
host1x_debug_init(host);
#endif
if (host->dev->of_node) {
err = devm_of_platform_populate(&pdev->dev);
if (err < 0) {
pr_info("Host1x-EMU: Failed to populate device from DT\n");
goto deinit_debugfs;
}
}
/* Start pool polling thread*/
host1x_poll_start(host);
@@ -423,6 +475,7 @@ static struct platform_driver tegra_host1x_driver = {
.driver = {
.name = "tegra-host1x-emu",
.of_match_table = host1x_of_match,
.acpi_match_table = ACPI_PTR(tegra_emu_syncpt_acpi_match),
.pm = &host1x_pm_ops,
},
.probe = host1x_probe,

24
drivers/gpu/host1x-emu/nvhost.c
View File

@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-FileCopyrightText: Copyright (c) 2024-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: GPL-2.0-only
*/
#include <nvidia/conftest.h>
@@ -10,24 +10,20 @@
#include <linux/interrupt.h>
#include <linux/iommu.h>
#include <linux/module.h>
#include <linux/acpi.h>
#include <linux/of_platform.h>
#include <linux/pm_runtime.h>
#include <linux/reset.h>
#include <linux/scatterlist.h>
#include <linux/slab.h>
#include <linux/version.h>
#ifdef CONFIG_TEGRA_HOST1X_EMU_DBG_SYMBL
#include <linux/host1x-emu.h>
#include <linux/nvhost-emu.h>
#else
#include <linux/host1x-next.h>
#include <linux/nvhost.h>
#include <linux/nvhost_t194.h>
#endif
#include <linux/host1x-emu.h>
#include "dev.h"
#define NVHOST_NUM_CDEV 1
extern struct platform_device *host1x_def_pdev;
struct nvhost_syncpt_interface {
dma_addr_t base;
@@ -131,12 +127,18 @@ HOST1X_EMU_EXPORT_DECL(struct platform_device*, nvhost_get_default_device(void))
struct platform_device *host1x_pdev;
np = of_find_matching_node(NULL, host1x_match);
if (!np)
return NULL;
if (np) {
host1x_pdev = of_find_device_by_node(np);
if (!host1x_pdev)
return NULL;
} else {
if ((host1x_def_pdev != NULL) &&
(ACPI_HANDLE(&host1x_def_pdev->dev))) {
host1x_pdev = host1x_def_pdev;
}
else
return NULL;
}
return host1x_pdev;
}