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drm/amdgpu: add sub block parameter in ras inject command 

ras sub block index could be passed from shell command

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tao Zhou 2019-08-07 14:27:42 +08:00 committed by Alex Deucher
parent a2b459947b
commit 44494f96ba
1 changed files with 10 additions and 7 deletions
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17
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
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@ -131,6 +131,7 @@ static int amdgpu_ras_debugfs_ctrl_parse_data(struct file *f,
char err[9] = "ue";
int op = -1;
int block_id;
uint32_t sub_block;
u64 address, value;
if (*pos)
@ -169,11 +170,12 @@ static int amdgpu_ras_debugfs_ctrl_parse_data(struct file *f,
data->op = op;
if (op == 2) {
if (sscanf(str, "%*s %*s %*s %llu %llu",
&address, &value) != 2)
if (sscanf(str, "%*s %*s %*s 0x%llx 0x%llx",
&address, &value) != 2)
if (sscanf(str, "%*s %*s %*s %u %llu %llu",
&sub_block, &address, &value) != 3)
if (sscanf(str, "%*s %*s %*s 0x%x 0x%llx 0x%llx",
&sub_block, &address, &value) != 3)
return -EINVAL;
data->head.sub_block_index = sub_block;
data->inject.address = address;
data->inject.value = value;
}
@ -218,7 +220,7 @@ static int amdgpu_ras_debugfs_ctrl_parse_data(struct file *f,
* write the struct to the control node.
*
* bash:
* echo op block [error [address value]] > .../ras/ras_ctrl
* echo op block [error [sub_blcok address value]] > .../ras/ras_ctrl
* op: disable, enable, inject
* disable: only block is needed
* enable: block and error are needed
@ -228,10 +230,11 @@ static int amdgpu_ras_debugfs_ctrl_parse_data(struct file *f,
* error: ue, ce
* ue: multi_uncorrectable
* ce: single_correctable
* sub_block: sub block index, pass 0 if there is no sub block
*
* here are some examples for bash commands,
* echo inject umc ue 0x0 0x0 > /sys/kernel/debug/dri/0/ras/ras_ctrl
* echo inject umc ce 0 0 > /sys/kernel/debug/dri/0/ras/ras_ctrl
* echo inject umc ue 0x0 0x0 0x0 > /sys/kernel/debug/dri/0/ras/ras_ctrl
* echo inject umc ce 0 0 0 > /sys/kernel/debug/dri/0/ras/ras_ctrl
* echo disable umc > /sys/kernel/debug/dri/0/ras/ras_ctrl
*
* How to check the result?