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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5078 | serge | 1 | /* |
| 2 | * Copyright 2012 Advanced Micro Devices, Inc. |
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| 3 | * |
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 5 | * copy of this software and associated documentation files (the "Software"), |
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| 6 | * to deal in the Software without restriction, including without limitation |
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| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 9 | * Software is furnished to do so, subject to the following conditions: |
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| 10 | * |
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| 11 | * The above copyright notice and this permission notice shall be included in |
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| 12 | * all copies or substantial portions of the Software. |
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| 13 | * |
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| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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| 18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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| 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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| 20 | * OTHER DEALINGS IN THE SOFTWARE. |
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| 21 | * |
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| 22 | */ |
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| 23 | |||
| 24 | #include "drmP.h" |
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| 25 | #include "radeon.h" |
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| 26 | #include "trinityd.h" |
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| 27 | #include "trinity_dpm.h" |
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| 28 | #include "ppsmc.h" |
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| 29 | |||
| 30 | static int trinity_notify_message_to_smu(struct radeon_device *rdev, u32 id) |
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| 31 | { |
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| 32 | int i; |
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| 33 | u32 v = 0; |
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| 34 | |||
| 35 | WREG32(SMC_MESSAGE_0, id); |
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| 36 | for (i = 0; i < rdev->usec_timeout; i++) { |
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| 37 | if (RREG32(SMC_RESP_0) != 0) |
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| 38 | break; |
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| 39 | udelay(1); |
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| 40 | } |
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| 41 | v = RREG32(SMC_RESP_0); |
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| 42 | |||
| 43 | if (v != 1) { |
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| 44 | if (v == 0xFF) { |
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| 45 | DRM_ERROR("SMC failed to handle the message!\n"); |
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| 46 | return -EINVAL; |
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| 47 | } else if (v == 0xFE) { |
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| 48 | DRM_ERROR("Unknown SMC message!\n"); |
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| 49 | return -EINVAL; |
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| 50 | } |
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| 51 | } |
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| 52 | |||
| 53 | return 0; |
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| 54 | } |
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| 55 | |||
| 56 | int trinity_dpm_bapm_enable(struct radeon_device *rdev, bool enable) |
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| 57 | { |
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| 58 | if (enable) |
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| 59 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_EnableBAPM); |
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| 60 | else |
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| 61 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DisableBAPM); |
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| 62 | } |
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| 63 | |||
| 64 | int trinity_dpm_config(struct radeon_device *rdev, bool enable) |
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| 65 | { |
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| 66 | if (enable) |
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| 67 | WREG32_SMC(SMU_SCRATCH0, 1); |
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| 68 | else |
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| 69 | WREG32_SMC(SMU_SCRATCH0, 0); |
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| 70 | |||
| 71 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_Config); |
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| 72 | } |
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| 73 | |||
| 74 | int trinity_dpm_force_state(struct radeon_device *rdev, u32 n) |
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| 75 | { |
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| 76 | WREG32_SMC(SMU_SCRATCH0, n); |
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| 77 | |||
| 78 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_ForceState); |
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| 79 | } |
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| 80 | |||
| 81 | int trinity_dpm_n_levels_disabled(struct radeon_device *rdev, u32 n) |
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| 82 | { |
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| 83 | WREG32_SMC(SMU_SCRATCH0, n); |
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| 84 | |||
| 85 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_N_LevelsDisabled); |
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| 86 | } |
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| 87 | |||
| 88 | int trinity_uvd_dpm_config(struct radeon_device *rdev) |
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| 89 | { |
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| 90 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_UVD_DPM_Config); |
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| 91 | } |
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| 92 | |||
| 93 | int trinity_dpm_no_forced_level(struct radeon_device *rdev) |
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| 94 | { |
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| 95 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_NoForcedLevel); |
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| 96 | } |
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| 97 | |||
| 98 | int trinity_dce_enable_voltage_adjustment(struct radeon_device *rdev, |
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| 99 | bool enable) |
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| 100 | { |
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| 101 | if (enable) |
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| 102 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DCE_AllowVoltageAdjustment); |
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| 103 | else |
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| 104 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DCE_RemoveVoltageAdjustment); |
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| 105 | } |
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| 106 | |||
| 107 | int trinity_gfx_dynamic_mgpg_config(struct radeon_device *rdev) |
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| 108 | { |
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| 109 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_PG_SIMD_Config); |
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| 110 | } |
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| 111 | |||
| 112 | void trinity_acquire_mutex(struct radeon_device *rdev) |
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| 113 | { |
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| 114 | int i; |
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| 115 | |||
| 116 | WREG32(SMC_INT_REQ, 1); |
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| 117 | for (i = 0; i < rdev->usec_timeout; i++) { |
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| 118 | if ((RREG32(SMC_INT_REQ) & 0xffff) == 1) |
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| 119 | break; |
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| 120 | udelay(1); |
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| 121 | } |
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| 122 | } |
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| 123 | |||
| 124 | void trinity_release_mutex(struct radeon_device *rdev) |
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| 125 | { |
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| 126 | WREG32(SMC_INT_REQ, 0); |
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| 127 | } |