Line data    Source code

       1             : /*
       2             :  * Copyright 2020 Advanced Micro Devices, Inc.
       3             :  *
       4             :  * Permission is hereby granted, free of charge, to any person obtaining a
       5             :  * copy of this software and associated documentation files (the "Software"),
       6             :  * to deal in the Software without restriction, including without limitation
       7             :  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
       8             :  * and/or sell copies of the Software, and to permit persons to whom the
       9             :  * Software is furnished to do so, subject to the following conditions:
      10             :  *
      11             :  * The above copyright notice and this permission notice shall be included in
      12             :  * all copies or substantial portions of the Software.
      13             :  *
      14             :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      15             :  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      16             :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
      17             :  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
      18             :  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
      19             :  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
      20             :  * OTHER DEALINGS IN THE SOFTWARE.
      21             :  *
      22             :  */
      23             : #include "amdgpu.h"
      24             : #include "smuio_v11_0.h"
      25             : #include "smuio/smuio_11_0_0_offset.h"
      26             : #include "smuio/smuio_11_0_0_sh_mask.h"
      27             : 
      28           0 : static u32 smuio_v11_0_get_rom_index_offset(struct amdgpu_device *adev)
      29             : {
      30           0 :         return SOC15_REG_OFFSET(SMUIO, 0, mmROM_INDEX);
      31             : }
      32             : 
      33           0 : static u32 smuio_v11_0_get_rom_data_offset(struct amdgpu_device *adev)
      34             : {
      35           0 :         return SOC15_REG_OFFSET(SMUIO, 0, mmROM_DATA);
      36             : }
      37             : 
      38           0 : static void smuio_v11_0_update_rom_clock_gating(struct amdgpu_device *adev, bool enable)
      39             : {
      40             :         u32 def, data;
      41             : 
      42             :         /* enable/disable ROM CG is not supported on APU */
      43           0 :         if (adev->flags & AMD_IS_APU)
      44             :                 return;
      45             : 
      46           0 :         if (!(adev->cg_flags & AMD_CG_SUPPORT_ROM_MGCG))
      47             :                 return;
      48             : 
      49           0 :         def = data = RREG32_SOC15(SMUIO, 0, mmCGTT_ROM_CLK_CTRL0);
      50             : 
      51           0 :         if (enable)
      52           0 :                 data &= ~(CGTT_ROM_CLK_CTRL0__SOFT_OVERRIDE0_MASK |
      53             :                         CGTT_ROM_CLK_CTRL0__SOFT_OVERRIDE1_MASK);
      54             :         else
      55           0 :                 data |= CGTT_ROM_CLK_CTRL0__SOFT_OVERRIDE0_MASK |
      56             :                         CGTT_ROM_CLK_CTRL0__SOFT_OVERRIDE1_MASK;
      57             : 
      58           0 :         if (def != data)
      59           0 :                 WREG32_SOC15(SMUIO, 0, mmCGTT_ROM_CLK_CTRL0, data);
      60             : }
      61             : 
      62           0 : static void smuio_v11_0_get_clock_gating_state(struct amdgpu_device *adev, u64 *flags)
      63             : {
      64             :         u32 data;
      65             : 
      66             :         /* CGTT_ROM_CLK_CTRL0 is not available for APU */
      67           0 :         if (adev->flags & AMD_IS_APU)
      68             :                 return;
      69             : 
      70           0 :         data = RREG32_SOC15(SMUIO, 0, mmCGTT_ROM_CLK_CTRL0);
      71           0 :         if (!(data & CGTT_ROM_CLK_CTRL0__SOFT_OVERRIDE0_MASK))
      72           0 :                 *flags |= AMD_CG_SUPPORT_ROM_MGCG;
      73             : }
      74             : 
      75             : const struct amdgpu_smuio_funcs smuio_v11_0_funcs = {
      76             :         .get_rom_index_offset = smuio_v11_0_get_rom_index_offset,
      77             :         .get_rom_data_offset = smuio_v11_0_get_rom_data_offset,
      78             :         .update_rom_clock_gating = smuio_v11_0_update_rom_clock_gating,
      79             :         .get_clock_gating_state = smuio_v11_0_get_clock_gating_state,
      80             : };