drm/amd/powerplay: OD setting fix on Vega10

gfxclk for OD setting is limited to 1980M for non-acg
ASICs of Vega10

Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 21 insertions, 1 deletions

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_processpptables.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_processpptables.c
index b8747a5c9204..99d596dc0e89 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_processpptables.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_processpptables.c
@@ -32,6 +32,7 @@
 #include "vega10_pptable.h"
 
 #define NUM_DSPCLK_LEVELS 8
+#define VEGA10_ENGINECLOCK_HARDMAX 198000
 
 static void set_hw_cap(struct pp_hwmgr *hwmgr, bool enable,
                 enum phm_platform_caps cap)
@@ -258,7 +259,26 @@ static int init_over_drive_limits(
                 struct pp_hwmgr *hwmgr,
                 const ATOM_Vega10_POWERPLAYTABLE *powerplay_table)
 {
-        hwmgr->platform_descriptor.overdriveLimit.engineClock =
+        const ATOM_Vega10_GFXCLK_Dependency_Table *gfxclk_dep_table =
+                        (const ATOM_Vega10_GFXCLK_Dependency_Table *)
+                        (((unsigned long) powerplay_table) +
+                        le16_to_cpu(powerplay_table->usGfxclkDependencyTableOffset));
+        bool is_acg_enabled = false;
+        ATOM_Vega10_GFXCLK_Dependency_Record_V2 *patom_record_v2;
+
+        if (gfxclk_dep_table->ucRevId == 1) {
+                patom_record_v2 =
+                        (ATOM_Vega10_GFXCLK_Dependency_Record_V2 *)gfxclk_dep_table->entries;
+                is_acg_enabled =
+                        (bool)patom_record_v2[gfxclk_dep_table->ucNumEntries-1].ucACGEnable;
+        }
+
+        if (powerplay_table->ulMaxODEngineClock > VEGA10_ENGINECLOCK_HARDMAX &&
+                !is_acg_enabled)
+                hwmgr->platform_descriptor.overdriveLimit.engineClock =
+                        VEGA10_ENGINECLOCK_HARDMAX;
+        else
+                hwmgr->platform_descriptor.overdriveLimit.engineClock =
                         le32_to_cpu(powerplay_table->ulMaxODEngineClock);
         hwmgr->platform_descriptor.overdriveLimit.memoryClock =
                         le32_to_cpu(powerplay_table->ulMaxODMemoryClock);