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Commit 44494f96 authored by Tao Zhou's avatar Tao Zhou Committed by Alex Deucher
Browse files

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



ras sub block index could be passed from shell command

Signed-off-by: default avatarTao Zhou <tao.zhou1@amd.com>
Reviewed-by: default avatarGuchun Chen <guchun.chen@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent a2b45994

drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c

+10 −7
Original line number Diff line number Diff line
@@ -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?