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drm/amdgpu: add debugfs node to toggle ras error cnt harvest 

Before ras recovery is issued, user could operate this debugfs
node to enable/disable the harvest of all RAS IPs' ras error
count registers, which will help keep hardware's registers'
status instead of cleaning up them.

Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Dennis Li <Dennis.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Guchun Chen 2020-08-04 15:05:01 +08:00 committed by Alex Deucher
parent f75e94d868
commit 66459e1db2
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
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@ -1215,6 +1215,13 @@ static void amdgpu_ras_debugfs_create_ctrl_node(struct amdgpu_device *adev)
*/
debugfs_create_bool("auto_reboot", S_IWUGO | S_IRUGO, con->dir,
&con->reboot);
/*
* User could set this not to clean up hardware's error count register
* of RAS IPs during ras recovery.
*/
debugfs_create_bool("disable_ras_err_cnt_harvest", 0644,
con->dir, &con->disable_ras_err_cnt_harvest);
}
void amdgpu_ras_debugfs_create(struct amdgpu_device *adev,