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NVIDIA: SAUCE: tegra-epl: allow tegra-epl to be built as module

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- updating kconfig file to allow tegra-epl to
  be built as module.
- Updating misc ec sw generic error index offset
  depeding on Orin or Thor chip.

Bug 5142445
Bug 5119438
Bug 5405209
Bug 5415787

Change-Id: Iea589710e1a90856550623543f9ac342854c2a2c
Signed-off-by: Shubham Jain <shubhamj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/3rdparty/canonical/linux-noble/+/3430974
(cherry picked from commit 2a56160a9c270b5b411a88f9e79865e5442581d3)
Reviewed-on: https://git-master.nvidia.com/r/c/3rdparty/canonical/linux-noble/+/3459571
Tested-by: Hiteshkumar Patel <hiteshkumarg@nvidia.com>
Reviewed-by: Dipen Patel <dipenp@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Shubham Jain
2025-05-09 13:19:57 +00:00
committed by mobile promotions
parent d684657795
commit a385828614
3 changed files with 16 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/platform/tegra/Kconfig
View File

@@ -16,7 +16,7 @@ menuconfig TEGRA_PLATFORM_DEVICES
if TEGRA_PLATFORM_DEVICES if TEGRA_PLATFORM_DEVICES
config TEGRA_EPL config TEGRA_EPL
bool "Tegra Error Propagation Layer Driver" tristate "Tegra Error Propagation Layer Driver"
depends on MAILBOX depends on MAILBOX
help help
The tegra-epl driver provides interface for reporting software detected The tegra-epl driver provides interface for reporting software detected

18
drivers/platform/tegra/tegra-epl.c
View File

@@ -22,9 +22,6 @@
/* Macro indicating total number of Misc Sw generic errors in Misc EC */ /* Macro indicating total number of Misc Sw generic errors in Misc EC */
#define NUM_SW_GENERIC_ERR 5U #define NUM_SW_GENERIC_ERR 5U
/* Error index offset in mission status register */
#define ERROR_INDEX_OFFSET 24U
/* signature code for HSP pm notify data */ /* signature code for HSP pm notify data */
#define PM_STATE_UNI_CODE 0xFDEF #define PM_STATE_UNI_CODE 0xFDEF
@@ -60,6 +57,9 @@ struct epl_misc_sw_err_cfg {
const char *dev_configured; const char *dev_configured;
}; };
/* Error index offset in mission status register */
static uint32_t error_index_offset = 3;
static int device_file_major_number; static int device_file_major_number;
static const char device_name[] = "epdaemon"; static const char device_name[] = "epdaemon";
@@ -153,7 +153,7 @@ int epl_get_misc_ec_err_status(struct device *dev, uint8_t err_number, bool *sta
if (strcmp(dev_str, miscerr_cfg[err_number].dev_configured) != 0) if (strcmp(dev_str, miscerr_cfg[err_number].dev_configured) != 0)
return -EACCES; return -EACCES;
mask = (1U << ((ERROR_INDEX_OFFSET + err_number) % 32U)); mask = (1U << ((error_index_offset + err_number) % 32U));
mission_err_status = readl(mission_err_status_va); mission_err_status = readl(mission_err_status_va);
if ((mission_err_status & mask) != 0U) if ((mission_err_status & mask) != 0U)
@@ -277,6 +277,7 @@ static SIMPLE_DEV_PM_OPS(epl_client_pm, epl_client_suspend, epl_client_resume);
static const struct of_device_id epl_client_dt_match[] = { static const struct of_device_id epl_client_dt_match[] = {
{ .compatible = "nvidia,tegra234-epl-client"}, { .compatible = "nvidia,tegra234-epl-client"},
{ .compatible = "nvidia,tegra264-epl-client"},
{} {}
}; };
@@ -377,6 +378,15 @@ static int epl_client_probe(struct platform_device *pdev)
dev_info(dev, "handshake-retry-count %u\n", handshake_retry_count); dev_info(dev, "handshake-retry-count %u\n", handshake_retry_count);
if (of_device_is_compatible(np, "nvidia,tegra234-epl-client")) {
error_index_offset = 24;
} else if (of_device_is_compatible(np, "nvidia,tegra264-epl-client")) {
error_index_offset = 3;
} else {
pr_err("tegra-epl: valid dt compatible string not found\n");
ret = -1;
}
if (is_misc_ec_mapped == true) { if (is_misc_ec_mapped == true) {
mission_err_status_va = devm_platform_ioremap_resource(pdev, NUM_SW_GENERIC_ERR * 2); mission_err_status_va = devm_platform_ioremap_resource(pdev, NUM_SW_GENERIC_ERR * 2);
if (IS_ERR(mission_err_status_va)) { if (IS_ERR(mission_err_status_va)) {

2
include/linux/tegra-epl.h
View File

@@ -25,7 +25,7 @@ struct epl_error_report_frame {
uint16_t reporter_id; uint16_t reporter_id;
}; };
#ifdef CONFIG_TEGRA_EPL #if IS_ENABLED(CONFIG_TEGRA_EPL)
/** /**
* @brief API to check if SW error can be reported via Misc EC * @brief API to check if SW error can be reported via Misc EC
* by reading and checking Misc EC error status register value. * by reading and checking Misc EC error status register value.