From: Aaron Liu <aaron.liu@xxxxxxx>
RLC_PG_DELAY_3 is to make RLC in safe mode to
prevent any misalignment or conflict in middle of any power
feature entry/exit sequence when CGPG feature is enabled.
Signed-off-by: Aaron Liu <aaron.liu@xxxxxxx>
Reviewed-by: Huang Rui <ray.huang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 21 ++++++++++++++++-----
1 file changed, 16 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index 3f6184451b9b..4e37e219989a 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -8052,12 +8052,23 @@ static void gfx_v10_cntl_power_gating(struct amdgpu_device *adev, bool enable)
* in refclk count. Note that RLC FW is modified to take 16 bits from
* RLC_PG_DELAY_3[15:0] as the hysteresis instead of just 8 bits.
*
- * The recommendation from RLC team is setting RLC_PG_DELAY_3 to 200us(0x4E20)
- * as part of CGPG enablement starting point.
+ * The recommendation from RLC team is setting RLC_PG_DELAY_3 to 200us as part)
+ * of CGPG enablement starting point.
+ * Power/performance team will optimize it and might give a new value later.
*/
- if (enable && (adev->pg_flags & AMD_PG_SUPPORT_GFX_PG) && adev->asic_type == CHIP_VANGOGH) {
- data = 0x4E20 & RLC_PG_DELAY_3__CGCG_ACTIVE_BEFORE_CGPG_MASK_Vangogh;
- WREG32_SOC15(GC, 0, mmRLC_PG_DELAY_3, data);
+ if (enable && (adev->pg_flags & AMD_PG_SUPPORT_GFX_PG)) {
+ switch (adev->asic_type) {
+ case CHIP_VANGOGH:
+ data = 0x4E20 & RLC_PG_DELAY_3__CGCG_ACTIVE_BEFORE_CGPG_MASK_Vangogh;
+ WREG32_SOC15(GC, 0, mmRLC_PG_DELAY_3, data);
+ break;
+ case CHIP_YELLOW_CARP:
+ data = 0x1388 & RLC_PG_DELAY_3__CGCG_ACTIVE_BEFORE_CGPG_MASK_Vangogh;
+ WREG32_SOC15(GC, 0, mmRLC_PG_DELAY_3, data);
+ break;
+ default:
+ break;
+ }
}
}
--
2.31.1
_______________________________________________
amd-gfx mailing list
amd-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
