Commit 10072642 authored by Asad Kamal's avatar Asad Kamal Committed by Alex Deucher
Browse files

drm/amdgpu: Add supported partition mode node 



Add sysfs node to show supported partition modes across all NPS modes

Signed-off-by: default avatarAsad Kamal <asad.kamal@amd.com>
Reviewed-by: default avatarLijo Lazar <lijo.lazar@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent fcd91a95

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

+41 −3
Original line number Diff line number Diff line
@@ -463,6 +463,14 @@ static struct attribute *xcp_cfg_res_sysfs_attrs[] = { 
	&XCP_CFG_SYSFS_RES_ATTR_PTR(num_shared), NULL

};



static const char *xcp_desc[] = {

	[AMDGPU_SPX_PARTITION_MODE] = "SPX",

	[AMDGPU_DPX_PARTITION_MODE] = "DPX",

	[AMDGPU_TPX_PARTITION_MODE] = "TPX",

	[AMDGPU_QPX_PARTITION_MODE] = "QPX",

	[AMDGPU_CPX_PARTITION_MODE] = "CPX",

};



ATTRIBUTE_GROUPS(xcp_cfg_res_sysfs);



#define to_xcp_attr(x) \
@@ -511,6 +519,27 @@ static int amdgpu_xcp_get_res_info(struct amdgpu_xcp_mgr *xcp_mgr, 
}



#define to_xcp_cfg(x) container_of(x, struct amdgpu_xcp_cfg, kobj)

static ssize_t supported_xcp_configs_show(struct kobject *kobj,

					  struct kobj_attribute *attr, char *buf)

{

	struct amdgpu_xcp_cfg *xcp_cfg = to_xcp_cfg(kobj);

	struct amdgpu_xcp_mgr *xcp_mgr = xcp_cfg->xcp_mgr;

	int size = 0, mode;

	char *sep = "";



	if (!xcp_mgr || !xcp_mgr->supp_xcp_modes)

		return sysfs_emit(buf, "Not supported\n");



	for_each_inst(mode, xcp_mgr->supp_xcp_modes) {

		size += sysfs_emit_at(buf, size, "%s%s", sep, xcp_desc[mode]);

		sep = ", ";

	}



	size += sysfs_emit_at(buf, size, "\n");



	return size;

}



static ssize_t xcp_config_show(struct kobject *kobj,

			       struct kobj_attribute *attr, char *buf)

{
@@ -564,6 +593,15 @@ static const struct kobj_type xcp_cfg_sysfs_ktype = { 
	.sysfs_ops = &kobj_sysfs_ops,

};



static struct kobj_attribute supp_part_sysfs_mode =

	__ATTR_RO(supported_xcp_configs);



static const struct attribute *xcp_attrs[] = {

	&supp_part_sysfs_mode.attr,

	&xcp_cfg_sysfs_mode.attr,

	NULL,

};



void amdgpu_xcp_cfg_sysfs_init(struct amdgpu_device *adev)

{

	struct amdgpu_xcp_res_details *xcp_res;
@@ -583,7 +621,7 @@ void amdgpu_xcp_cfg_sysfs_init(struct amdgpu_device *adev) 
	if (r)

		goto err1;



	r = sysfs_create_file(&xcp_cfg->kobj, &xcp_cfg_sysfs_mode.attr);

	r = sysfs_create_files(&xcp_cfg->kobj, xcp_attrs);

	if (r)

		goto err1;
@@ -611,7 +649,7 @@ void amdgpu_xcp_cfg_sysfs_init(struct amdgpu_device *adev) 
		kobject_put(&xcp_res->kobj);

	}



	sysfs_remove_file(&xcp_cfg->kobj, &xcp_cfg_sysfs_mode.attr);

	sysfs_remove_files(&xcp_cfg->kobj, xcp_attrs);

err1:

	kobject_put(&xcp_cfg->kobj);

}
@@ -631,6 +669,6 @@ void amdgpu_xcp_cfg_sysfs_fini(struct amdgpu_device *adev) 
		kobject_put(&xcp_res->kobj);

	}



	sysfs_remove_file(&xcp_cfg->kobj, &xcp_cfg_sysfs_mode.attr);

	sysfs_remove_files(&xcp_cfg->kobj, xcp_attrs);

	kobject_put(&xcp_cfg->kobj);

}