Commit 4051844c authored by Yang Wang's avatar Yang Wang Committed by Alex Deucher
Browse files

drm/amdgpu: add amdgpu mca debug sysfs support 



add amdgpu mca debug sysfs support.

Signed-off-by: default avatarYang Wang <kevinyang.wang@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent d11bbace

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

+116 −0
Original line number Diff line number Diff line
@@ -212,3 +212,119 @@ int amdgpu_mca_smu_get_mca_entry(struct amdgpu_device *adev, enum amdgpu_mca_err 
	return -EOPNOTSUPP;

}



#if defined(CONFIG_DEBUG_FS)

static int amdgpu_mca_smu_debug_mode_set(void *data, u64 val)

{

	struct amdgpu_device *adev = (struct amdgpu_device *)data;

	int ret;



	ret = amdgpu_mca_smu_set_debug_mode(adev, val ? true : false);

	if (ret)

		return ret;



	dev_info(adev->dev, "amdgpu set smu mca debug mode %s success\n", val ? "on" : "off");



	return 0;

}



static void mca_dump_entry(struct seq_file *m, struct mca_bank_entry *entry)

{

	int i, idx = entry->idx;



	seq_printf(m, "mca entry[%d].type: %s\n", idx, entry->type == AMDGPU_MCA_ERROR_TYPE_UE ? "UE" : "CE");

	seq_printf(m, "mca entry[%d].ip: %d\n", idx, entry->ip);

	seq_printf(m, "mca entry[%d].info: socketid:%d aid:%d hwid:0x%03x mcatype:0x%04x\n",

		   idx, entry->info.socket_id, entry->info.aid, entry->info.hwid, entry->info.mcatype);



	for (i = 0; i < ARRAY_SIZE(entry->regs); i++)

		seq_printf(m, "mca entry[%d].regs[%d]: 0x%016llx\n", idx, i, entry->regs[i]);

}



static int mca_dump_show(struct seq_file *m, enum amdgpu_mca_error_type type)

{

	struct amdgpu_device *adev = (struct amdgpu_device *)m->private;

	struct mca_bank_entry *entry;

	uint32_t count = 0;

	int i, ret;



	ret = amdgpu_mca_smu_get_valid_mca_count(adev, type, &count);

	if (ret)

		return ret;



	seq_printf(m, "amdgpu smu %s valid mca count: %d\n",

		   type == AMDGPU_MCA_ERROR_TYPE_UE ? "UE" : "CE", count);



	if (!count)

		return 0;



	entry = kmalloc(sizeof(*entry), GFP_KERNEL);

	if (!entry)

		return -ENOMEM;



	for (i = 0; i < count; i++) {

		memset(entry, 0, sizeof(*entry));



		ret = amdgpu_mca_smu_get_mca_entry(adev, type, i, entry);

		if (ret)

			goto err_free_entry;



		mca_dump_entry(m, entry);

	}



err_free_entry:

	kfree(entry);



	return ret;

}



static int mca_dump_ce_show(struct seq_file *m, void *unused)

{

	return mca_dump_show(m, AMDGPU_MCA_ERROR_TYPE_CE);

}



static int mca_dump_ce_open(struct inode *inode, struct file *file)

{

	return single_open(file, mca_dump_ce_show, inode->i_private);

}



static const struct file_operations mca_ce_dump_debug_fops = {

	.owner = THIS_MODULE,

	.open = mca_dump_ce_open,

	.read = seq_read,

	.llseek = seq_lseek,

	.release = single_release,

};



static int mca_dump_ue_show(struct seq_file *m, void *unused)

{

	return mca_dump_show(m, AMDGPU_MCA_ERROR_TYPE_UE);

}



static int mca_dump_ue_open(struct inode *inode, struct file *file)

{

	return single_open(file, mca_dump_ue_show, inode->i_private);

}



static const struct file_operations mca_ue_dump_debug_fops = {

	.owner = THIS_MODULE,

	.open = mca_dump_ue_open,

	.read = seq_read,

	.llseek = seq_lseek,

	.release = single_release,

};



DEFINE_DEBUGFS_ATTRIBUTE(mca_debug_mode_fops, NULL, amdgpu_mca_smu_debug_mode_set, "%llu\n");

#endif



void amdgpu_mca_smu_debugfs_init(struct amdgpu_device *adev, struct dentry *root)

{

#if defined(CONFIG_DEBUG_FS)

	if (!root || adev->ip_versions[MP1_HWIP][0] != IP_VERSION(13, 0, 6))

		return;



	debugfs_create_file("mca_debug_mode", 0200, root, adev, &mca_debug_mode_fops);

	debugfs_create_file("mca_ue_dump", 0400, root, adev, &mca_ue_dump_debug_fops);

	debugfs_create_file("mca_ce_dump", 0400, root, adev, &mca_ce_dump_debug_fops);

#endif

}

drivers/gpu/drm/amd/amdgpu/amdgpu_mca.h

+2 −0
Original line number Diff line number Diff line
@@ -112,4 +112,6 @@ int amdgpu_mca_smu_get_error_count(struct amdgpu_device *adev, enum amdgpu_ras_b 
int amdgpu_mca_smu_get_mca_entry(struct amdgpu_device *adev, enum amdgpu_mca_error_type type,

				 int idx, struct mca_bank_entry *entry);



void amdgpu_mca_smu_debugfs_init(struct amdgpu_device *adev, struct dentry *root);



#endif

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

+2 −0
Original line number Diff line number Diff line
@@ -1570,6 +1570,8 @@ void amdgpu_ras_debugfs_create_all(struct amdgpu_device *adev) 
			amdgpu_ras_debugfs_create(adev, &fs_info, dir);

		}

	}



	amdgpu_mca_smu_debugfs_init(adev, dir);

}



/* debugfs end */