[PATCH] drm/amdgpu: Add supported NPS modes node

[Asad Kamal <asad.kamal@xxxxxxx>]

Add sysfs node to show supported NPS mode

Signed-off-by: Asad Kamal <asad.kamal@xxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c | 34 +++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
index 83a16918ea76..5e1673b1a30c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
@@ -471,6 +471,16 @@ static const char *xcp_desc[] = {
 	[AMDGPU_CPX_PARTITION_MODE] = "CPX",
 };
 
+static const char *nps_desc[] = {
+	[UNKNOWN_MEMORY_PARTITION_MODE] = "UNKNOWN",
+	[AMDGPU_NPS1_PARTITION_MODE] = "NPS1",
+	[AMDGPU_NPS2_PARTITION_MODE] = "NPS2",
+	[AMDGPU_NPS3_PARTITION_MODE] = "NPS3",
+	[AMDGPU_NPS4_PARTITION_MODE] = "NPS4",
+	[AMDGPU_NPS6_PARTITION_MODE] = "NPS6",
+	[AMDGPU_NPS8_PARTITION_MODE] = "NPS8",
+};
+
 ATTRIBUTE_GROUPS(xcp_cfg_res_sysfs);
 
 #define to_xcp_attr(x) \
@@ -540,6 +550,26 @@ static ssize_t supported_xcp_configs_show(struct kobject *kobj,
 	return size;
 }
 
+static ssize_t supported_nps_configs_show(struct kobject *kobj,
+					  struct kobj_attribute *attr, char *buf)
+{
+	struct amdgpu_xcp_cfg *xcp_cfg = to_xcp_cfg(kobj);
+	int size = 0, mode;
+	char *sep = "";
+
+	if (!xcp_cfg || !xcp_cfg->compatible_nps_modes)
+		return sysfs_emit(buf, "Not supported\n");
+
+	for_each_inst(mode, xcp_cfg->compatible_nps_modes) {
+		size += sysfs_emit_at(buf, size, "%s%s", sep, nps_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)
 {
@@ -596,9 +626,13 @@ static const struct kobj_type xcp_cfg_sysfs_ktype = {
 static struct kobj_attribute supp_part_sysfs_mode =
 	__ATTR_RO(supported_xcp_configs);
 
+static struct kobj_attribute supp_nps_sysfs_mode =
+	__ATTR_RO(supported_nps_configs);
+
 static const struct attribute *xcp_attrs[] = {
 	&supp_part_sysfs_mode.attr,
 	&xcp_cfg_sysfs_mode.attr,
+	&supp_nps_sysfs_mode.attr,
 	NULL,
 };
 
-- 
2.46.0