Commit 76da73f0 authored by Lijo Lazar's avatar Lijo Lazar Committed by Alex Deucher
Browse files

drm/amdgpu: Add sysfs attribute to get board info 



Add a sysfs attribute which shows the board form factor like OAM or
CEM.

Signed-off-by: default avatarLijo Lazar <lijo.lazar@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent b0a45533

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

+57 −0
Original line number Diff line number Diff line
@@ -162,6 +162,58 @@ static ssize_t amdgpu_device_get_pcie_replay_count(struct device *dev, 
static DEVICE_ATTR(pcie_replay_count, 0444,

		amdgpu_device_get_pcie_replay_count, NULL);



static ssize_t amdgpu_device_get_board_info(struct device *dev,

					    struct device_attribute *attr,

					    char *buf)

{

	struct drm_device *ddev = dev_get_drvdata(dev);

	struct amdgpu_device *adev = drm_to_adev(ddev);

	enum amdgpu_pkg_type pkg_type = AMDGPU_PKG_TYPE_CEM;

	const char *pkg;



	if (adev->smuio.funcs && adev->smuio.funcs->get_pkg_type)

		pkg_type = adev->smuio.funcs->get_pkg_type(adev);



	switch (pkg_type) {

	case AMDGPU_PKG_TYPE_CEM:

		pkg = "cem";

		break;

	case AMDGPU_PKG_TYPE_OAM:

		pkg = "oam";

		break;

	default:

		pkg = "unknown";

		break;

	}



	return sysfs_emit(buf, "%s : %s\n", "type", pkg);

}



static DEVICE_ATTR(board_info, 0444, amdgpu_device_get_board_info, NULL);



static struct attribute *amdgpu_board_attrs[] = {

	&dev_attr_board_info.attr,

	NULL,

};



static umode_t amdgpu_board_attrs_is_visible(struct kobject *kobj,

					     struct attribute *attr, int n)

{

	struct device *dev = kobj_to_dev(kobj);

	struct drm_device *ddev = dev_get_drvdata(dev);

	struct amdgpu_device *adev = drm_to_adev(ddev);



	if (adev->flags & AMD_IS_APU)

		return 0;



	return attr->mode;

}



static const struct attribute_group amdgpu_board_attrs_group = {

	.attrs = amdgpu_board_attrs,

	.is_visible = amdgpu_board_attrs_is_visible

};



static void amdgpu_device_get_pcie_info(struct amdgpu_device *adev);
@@ -4038,6 +4090,11 @@ int amdgpu_device_init(struct amdgpu_device *adev, 
	if (r)

		dev_err(adev->dev, "Could not create amdgpu device attr\n");



	r = devm_device_add_group(adev->dev, &amdgpu_board_attrs_group);

	if (r)

		dev_err(adev->dev,

			"Could not create amdgpu board attributes\n");



	amdgpu_fru_sysfs_init(adev);



	if (IS_ENABLED(CONFIG_PERF_EVENTS))