drm/amdgpu: add FGCG support

Add the CG flag for Fine Grained Clock Gating.

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/include/amd_shared.h b/drivers/gpu/drm/amd/include/amd_shared.h
index 9086df53660cc99cbef3a764913035dd03962ca2..9ae4060a9d0f414843b830cf560a9682c92e650c 100644 (file)
--- a/drivers/gpu/drm/amd/include/amd_shared.h
+++ b/drivers/gpu/drm/amd/include/amd_shared.h
@@ -148,6 +148,7 @@ enum amd_powergating_state {
 #define AMD_CG_SUPPORT_ATHUB_MGCG              (1ULL << 29)
 #define AMD_CG_SUPPORT_JPEG_MGCG               (1ULL << 30)
 #define AMD_CG_SUPPORT_GFX_FGCG                        (1ULL << 31)
+#define AMD_CG_SUPPORT_REPEATER_FGCG           (1ULL << 32)
 /* PG flags */
 #define AMD_PG_SUPPORT_GFX_PG                  (1 << 0)
 #define AMD_PG_SUPPORT_GFX_SMG                 (1 << 1)

diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
index 05f1ac355ba8552e22ae74b071a153c4ed6073f0..e92d07f8804883503b66398fa5ae862a873193ec 100644 (file)
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -66,6 +66,7 @@ static const struct cg_flag_name clocks[] = {
        {AMD_CG_SUPPORT_HDP_SD, "Host Data Path Shutdown"},
        {AMD_CG_SUPPORT_IH_CG, "Interrupt Handler Clock Gating"},
        {AMD_CG_SUPPORT_JPEG_MGCG, "JPEG Medium Grain Clock Gating"},
+       {AMD_CG_SUPPORT_REPEATER_FGCG, "Repeater Fine Grain Clock Gating"},
 
        {AMD_CG_SUPPORT_ATHUB_MGCG, "Address Translation Hub Medium Grain Clock Gating"},
        {AMD_CG_SUPPORT_ATHUB_LS, "Address Translation Hub Light Sleep"},