nv-tegra-mirror/linux-nv-oot
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nv-oot.git synced 2025-12-24 02:01:36 +03:00
Code Issues Packages Projects Releases Wiki Activity

mods-linux: Add debugfs for ras error programming

Browse Source 
Summary: Add debug fs to allow user to program
the error control registers in RAS so mods can
selectively disable errors if so desired. A
current example of this usecase is disabling
ras from throttling, which is thrown during
the mods Soctherm OC throttling test

Bug 200533168

Change-Id: Id9007e9e13ae9563ad2aae107b130bcd951f0bc4
Signed-off-by: Ellis Roberts <ellisr@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2224479
GVS: Gerrit_Virtual_Submit
Reviewed-by: Kiran Kasamsetty <kkasamsetty@nvidia.com>
Reviewed-by: Rohan Sreeram <rsreeram@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
ellisr
2019-07-29 23:57:30 -07:00
committed by Laxman Dewangan
parent 9896b7bddc
commit 726aeb070b
4 changed files with 186 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

74
drivers/misc/mods/mods_debugfs.c
View File

@@ -29,6 +29,10 @@
static struct dentry *mods_debugfs_dir;
#ifdef CONFIG_ARCH_TEGRA_19x_SOC
#include "mods_ras.h"
#endif
#if defined(MODS_TEGRA) && defined(MODS_HAS_KFUSE)
#include <soc/tegra/kfuse.h>
#endif
@@ -474,6 +478,39 @@ static int mods_mi_set(void *data, u64 val)
mods_set_multi_instance((int)val);
return 0;
}
#ifdef CONFIG_ARCH_TEGRA_19x_SOC
static int mods_set_err_sel(void *data, u64 val)
{
set_err_sel(val);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(mods_err_sel_fops, 0, mods_set_err_sel, "%llu\n");
static int mods_set_err_ctrl(void *data, u64 val)
{
set_err_ctrl(val);
return 0;
}
static int mods_get_err_ctrl(void *data, u64 *val)
{
*val = get_err_ctrl();
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(mods_err_ctrl_fops, mods_get_err_ctrl,
mods_set_err_ctrl, "%llu\n");
static int mods_enable_cpu_core_reporting(void *data, u64 val)
{
enable_cpu_core_reporting(val);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(mods_enable_cpu_fops, 0, mods_enable_cpu_core_reporting,
"%llu\n");
#endif
DEFINE_SIMPLE_ATTRIBUTE(mods_mi_fops, mods_mi_get, mods_mi_set, "%llu\n");
void mods_remove_debugfs(void)
@@ -484,6 +521,10 @@ void mods_remove_debugfs(void)
int mods_create_debugfs(struct miscdevice *modsdev)
{
#ifdef MODS_HAS_DEBUGFS
#ifdef CONFIG_ARCH_TEGRA_19x_SOC
struct dentry *ras_debugfs_entry;
#endif
struct dentry *retval;
int err = 0;
#ifdef CONFIG_TEGRA_DC
@@ -533,6 +574,36 @@ int mods_create_debugfs(struct miscdevice *modsdev)
goto remove_out;
}
#ifdef CONFIG_ARCH_TEGRA_19x_SOC
if (of_find_node_by_name(NULL, "carmel_ras")) {
ras_debugfs_entry = debugfs_create_dir("ras", mods_debugfs_dir);
if (IS_ERR(ras_debugfs_entry)) {
err = -EIO;
goto remove_out;
}
retval = debugfs_create_file("err_sel", 0644,
ras_debugfs_entry, 0, &mods_err_sel_fops);
if (IS_ERR(retval)) {
err = -EIO;
goto remove_out;
}
retval = debugfs_create_file("err_ctrl", 0644,
ras_debugfs_entry, 0, &mods_err_ctrl_fops);
if (IS_ERR(retval)) {
err = -EIO;
goto remove_out;
}
retval = debugfs_create_file("ccplex_config", 0644,
ras_debugfs_entry, 0, &mods_enable_cpu_fops);
if (IS_ERR(retval)) {
err = -EIO;
goto remove_out;
}
}
#endif
retval = debugfs_create_file("debug", 0644,
mods_debugfs_dir, 0, &mods_debug_fops);
if (IS_ERR(retval)) {
@@ -693,5 +764,8 @@ remove_out:
dev_err(modsdev->this_device, "could not create debugfs\n");
mods_remove_debugfs();
return err;
#else
return 0;
#endif
}