2 * Copyright 2012 Advanced Micro Devices, Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
27 #include "trinity_dpm.h"
30 struct trinity_ps *trinity_get_ps(struct radeon_ps *rps);
31 struct trinity_power_info *trinity_get_pi(struct radeon_device *rdev);
33 static int trinity_notify_message_to_smu(struct radeon_device *rdev, u32 id)
38 WREG32(SMC_MESSAGE_0, id);
39 for (i = 0; i < rdev->usec_timeout; i++) {
40 if (RREG32(SMC_RESP_0) != 0)
44 v = RREG32(SMC_RESP_0);
48 DRM_ERROR("SMC failed to handle the message!\n");
50 } else if (v == 0xFE) {
51 DRM_ERROR("Unknown SMC message!\n");
59 int trinity_dpm_config(struct radeon_device *rdev, bool enable)
62 WREG32_SMC(SMU_SCRATCH0, 1);
64 WREG32_SMC(SMU_SCRATCH0, 0);
66 return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_Config);
69 int trinity_dpm_force_state(struct radeon_device *rdev, u32 n)
71 WREG32_SMC(SMU_SCRATCH0, n);
73 return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_ForceState);
76 int trinity_dpm_n_levels_disabled(struct radeon_device *rdev, u32 n)
78 WREG32_SMC(SMU_SCRATCH0, n);
80 return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_N_LevelsDisabled);
83 int trinity_uvd_dpm_config(struct radeon_device *rdev)
85 return trinity_notify_message_to_smu(rdev, PPSMC_MSG_UVD_DPM_Config);
88 int trinity_dpm_no_forced_level(struct radeon_device *rdev)
90 return trinity_notify_message_to_smu(rdev, PPSMC_MSG_NoForcedLevel);
93 int trinity_dce_enable_voltage_adjustment(struct radeon_device *rdev,
97 return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DCE_AllowVoltageAdjustment);
99 return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DCE_RemoveVoltageAdjustment);
102 int trinity_gfx_dynamic_mgpg_config(struct radeon_device *rdev)
104 return trinity_notify_message_to_smu(rdev, PPSMC_MSG_PG_SIMD_Config);
107 void trinity_acquire_mutex(struct radeon_device *rdev)
111 WREG32(SMC_INT_REQ, 1);
112 for (i = 0; i < rdev->usec_timeout; i++) {
113 if ((RREG32(SMC_INT_REQ) & 0xffff) == 1)
119 void trinity_release_mutex(struct radeon_device *rdev)
121 WREG32(SMC_INT_REQ, 0);