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misc: mods: update from Perforce and MODS KD RIST

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* Updates misc/mods from Perforce
 * Adds support for updated ATF RIST SMCs

Change-Id: I84975bb5dee6775ae415167d78799ecd38cb888f
Signed-off-by: Ian Grissom <igrissom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3146201
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Chris Dragan <kdragan@nvidia.com>
Tested-by: Dipen Patel <dipenp@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
This commit is contained in:
Ian Grissom
2024-04-22 18:14:01 +00:00
committed by mobile promotions
parent 70999e5756
commit 7e861f8a9e
4 changed files with 95 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/misc/mods/mods_acpi.c
View File

@@ -409,17 +409,23 @@ static int mods_eval_acpi_method(struct mods_client *client,
&output);
if (ACPI_FAILURE(status)) {
cl_info("ACPI method %s failed\n", p->method_name);
if (status == AE_NOT_FOUND) {
cl_debug(DEBUG_ACPI, "ACPI method %s not found\n", p->method_name);
err = -ENXIO;
} else {
cl_error("ACPI method %s failed\n", p->method_name);
err = -EIO;
}
pci_dev_put(dev);
LOG_EXT();
return -EINVAL;
return err;
}
acpi_method = output.pointer;
if (!acpi_method) {
cl_error("missing output from ACPI method %s\n",
p->method_name);
err = -EINVAL;
err = -EIO;
} else {
u8 *buf = p->out_buffer;

10
drivers/misc/mods/mods_mem.c
View File

@@ -338,7 +338,7 @@ static int create_dma_map(struct mods_client *client,
int err;
alloc_size = sizeof(struct MODS_DMA_MAP) +
(num_chunks - 1) * sizeof(struct scatterlist);
num_chunks * sizeof(struct scatterlist);
p_dma_map = kzalloc(alloc_size, GFP_KERNEL | __GFP_NORETRY);
@@ -1224,7 +1224,7 @@ static u32 estimate_num_chunks(u32 num_pages)
static inline size_t calc_mem_info_size_no_bitmap(u32 num_chunks)
{
return sizeof(struct MODS_MEM_INFO) +
(num_chunks - 1) * sizeof(struct scatterlist);
num_chunks * sizeof(struct scatterlist);
}
static inline u32 calc_mem_info_size(u32 num_chunks, u8 cache_type)
@@ -2761,11 +2761,11 @@ int esc_mods_flush_cpu_cache_range(struct mods_client *client,
***************************/
void mods_free_mem_reservations(void)
{
struct mods_client * const client = mods_client_from_id(1);
int i;
struct mods_client client;
/* Dummy client used to ensure ensuing functions do not crash */
memset(&client, 0, sizeof(client));
memset(client, 0, sizeof(*client));
/* Clear reserved on claimed reservations and free unclaimed ones */
for (i = 0; i < MODS_MEM_MAX_RESERVATIONS; i++) {
@@ -2773,7 +2773,7 @@ void mods_free_mem_reservations(void)
/* Existing reservation */
if (p_reservation->p_mem_info) {
release_chunks(&client, p_reservation->p_mem_info);
release_chunks(client, p_reservation->p_mem_info);
pci_dev_put(p_reservation->p_mem_info->dev);
kfree(p_reservation->p_mem_info);
memset(p_reservation, 0, sizeof(*p_reservation));

70
drivers/misc/mods/mods_oist.c
View File

@@ -1,25 +1,89 @@
// SPDX-License-Identifier: GPL-2.0-only
/* SPDX-FileCopyrightText: Copyright (c) 2022-2023, NVIDIA CORPORATION. All rights reserved. */
/* SPDX-FileCopyrightText: Copyright (c) 2022-2024, NVIDIA CORPORATION. All rights reserved. */
#include "mods_internal.h"
#include <linux/arm-smccc.h>
#define SMCCC_VERSION 0x80000000
#define TEGRA_SIP_RIST_SETUP 0xC200FF08
#define TEGRA_SIP_RIST_STATUS 0xC200FF04
#define TEGRA_SIP_RIST_STATUS_v2 0xC200FF09
/*
* MODS_ESC_OIST_STATUS is used to make SMC calls to the ATF driver for
* OIST/RIST.
*
* The 'smc_func_id' is used to controal the SMC function ID. Potential SMC IDs
* include SMCCC_VERSION, TEGRA_SIP_RIST_STATUS, TEGRA_SIP_RIST_STATUS_v2,
* and TEGRA_SIP_RIST_SETUP.
*
* The 'aX' fields are used to populate the input parameters to the various SMC
* calls. The remaining fields ('smc_status', 'smc_retval', ist_status',
* 'rist_setup_done') are used to relay return information back to the caller
*
* Input parameters --
* SMCCC_VERSION:
* a1 - unused, but a default value of 0 is passed
* TEGRA_SIP_RIST_STATUS:
* a1 - logical core ID to retrieve status for
* a2 - unused but expected to pass value of 1
* TEGRA_SIP_RIST_STATUS_v2:
* a1 - physical core ID to retrieve status for
* TEGRA_SIP_RIST_SETUP:
* a1 - test vector data physical address
* a2 - test vector data size
* a3 - event timer buffer physical address
* a4 - 'pll_sel' (bit 0) feature enable/disable
*/
int esc_mods_oist_status(struct mods_client *client,
struct MODS_TEGRA_OIST_STATUS *p)
{
int ret = 0;
struct arm_smccc_res res = { 0 };
if (p->smc_func_id == SMCCC_VERSION) {
LOG_ENT();
switch (p->smc_func_id) {
case SMCCC_VERSION:
// For SMC version, We are only reading res.a0 value, not a1,a2,a3
arm_smccc_1_1_smc(p->smc_func_id, res.a0, &res);
p->smc_status = res.a0;
} else {
break;
case TEGRA_SIP_RIST_STATUS:
// a1 - logical core ID
// a2 - unused on some implementations, but passed to be compatible
arm_smccc_1_1_smc(p->smc_func_id, p->a1, p->a2, &res);
p->smc_retval = res.a0;
p->smc_status = res.a1;
p->ist_status = res.a2;
break;
case TEGRA_SIP_RIST_STATUS_v2:
// a1 - physical core ID
// a2 - unused on some implementations, but passed to be compatible
arm_smccc_1_1_smc(p->smc_func_id, p->a1, p->a2, &res);
p->smc_retval = res.a0;
p->smc_status = res.a1;
p->ist_status = res.a2;
break;
case TEGRA_SIP_RIST_SETUP:
// a1 - tvt_addr
// a2 - tvt_size
// a3 - evt_buff
// a4 - pll_sel (bit 0)
arm_smccc_1_1_smc(p->smc_func_id, p->a1, p->a2, p->a3, p->a4, &res);
p->smc_retval = res.a0;
p->rist_setup_done = res.a1;
break;
default:
cl_error("invalid smc_func_id 0x%llx\n",
(unsigned long long)p->smc_func_id);
LOG_EXT();
ret = -EINVAL;
}
LOG_EXT();
return ret;
}

14
include/uapi/misc/mods.h
View File

@@ -1,5 +1,5 @@
/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
/* SPDX-FileCopyrightText: Copyright (c) 2008-2023, NVIDIA CORPORATION. All rights reserved. */
/* SPDX-FileCopyrightText: Copyright (c) 2008-2024, NVIDIA CORPORATION. All rights reserved. */
#ifndef _UAPI_MODS_H_
#define _UAPI_MODS_H_
@@ -8,7 +8,7 @@
/* Driver version */
#define MODS_DRIVER_VERSION_MAJOR 4
#define MODS_DRIVER_VERSION_MINOR 23
#define MODS_DRIVER_VERSION_MINOR 24
#define MODS_DRIVER_VERSION ((MODS_DRIVER_VERSION_MAJOR << 8) | \
((MODS_DRIVER_VERSION_MINOR / 10) << 4) | \
(MODS_DRIVER_VERSION_MINOR % 10))
@@ -1837,8 +1837,18 @@ struct MODS_TEGRA_OIST_STATUS {
__u64 a1;
/* IN */
__u64 a2;
/* IN */
__u64 a3;
/* IN */
__u64 a4;
/* OUT */
__u64 smc_status;
/* OUT */
__u64 smc_retval;
/* OUT */
__u64 ist_status;
/* OUT */
__u64 rist_setup_done;
};
enum MODS_IPI_TYPE {