drm/amd/pm: Add link reset for SMU 13.0.6

Add link reset implementation

Signed-off-by: Ce Sun <cesun102@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index 033c3229b555..a01b6244d99c 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -3412,6 +3412,19 @@ bool smu_mode2_reset_is_support(struct smu_context *smu)
 	return ret;
 }
 
+bool smu_link_reset_is_support(struct smu_context *smu)
+{
+	bool ret = false;
+
+	if (!smu->pm_enabled)
+		return false;
+
+	if (smu->ppt_funcs && smu->ppt_funcs->link_reset_is_support)
+		ret = smu->ppt_funcs->link_reset_is_support(smu);
+
+	return ret;
+}
+
 int smu_mode1_reset(struct smu_context *smu)
 {
 	int ret = 0;
@@ -3442,6 +3455,19 @@ static int smu_mode2_reset(void *handle)
 	return ret;
 }
 
+int smu_link_reset(struct smu_context *smu)
+{
+	int ret = 0;
+
+	if (!smu->pm_enabled)
+		return -EOPNOTSUPP;
+
+	if (smu->ppt_funcs->link_reset)
+		ret = smu->ppt_funcs->link_reset(smu);
+
+	return ret;
+}
+
 static int smu_enable_gfx_features(void *handle)
 {
 	struct smu_context *smu = handle;