The table grows quickly during debug/development effort when
multiple RAS errors are injected. Allow to avoid this by setting
table header back to empty if needed.
v2: Switch to debugfs entry instead of load time parameter.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 119bedc..52c5c61 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -303,6 +303,17 @@ static ssize_t amdgpu_ras_debugfs_ctrl_write(struct file *f, const char __user *
return size;
}
+static ssize_t amdgpu_ras_debugfs_eeprom_write(struct file *f, const char __user *buf,
+ size_t size, loff_t *pos)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)file_inode(f)->i_private;
+ int ret;
+
+ ret = amdgpu_ras_eeprom_reset_table(&adev->psp.ras.ras->eeprom_control);
+
+ return ret == 1 ? size : -EIO;
+}
+
static const struct file_operations amdgpu_ras_debugfs_ctrl_ops = {
.owner = THIS_MODULE,
.read = NULL,
@@ -310,6 +321,13 @@ static const struct file_operations amdgpu_ras_debugfs_ctrl_ops = {
.llseek = default_llseek
};
+static const struct file_operations amdgpu_ras_debugfs_eeprom_ops = {
+ .owner = THIS_MODULE,
+ .read = NULL,
+ .write = amdgpu_ras_debugfs_eeprom_write,
+ .llseek = default_llseek
+};
+
static ssize_t amdgpu_ras_sysfs_read(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -951,6 +969,8 @@ static void amdgpu_ras_debugfs_create_ctrl_node(struct amdgpu_device *adev)
con->dir = debugfs_create_dir("ras", minor->debugfs_root);
con->ent = debugfs_create_file("ras_ctrl", S_IWUGO | S_IRUGO, con->dir,
adev, &amdgpu_ras_debugfs_ctrl_ops);
+ con->ent = debugfs_create_file("ras_eeprom_reset", S_IWUGO | S_IRUGO, con->dir,
+ adev, &amdgpu_ras_debugfs_eeprom_ops);
}
void amdgpu_ras_debugfs_create(struct amdgpu_device *adev,
--
2.7.4
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