projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| d70229f7 AD |
1 | /* |
| 2 | * Copyright 2012 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 | ||
| 24 | #include "drmP.h" | |
| 25 | #include "radeon.h" | |
| 26 | #include "trinityd.h" | |
| 27 | #include "trinity_dpm.h" | |
| 28 | #include "ppsmc.h" | |
| 29 | ||
| 30 | struct trinity_ps *trinity_get_ps(struct radeon_ps *rps); | |
| 31 | struct trinity_power_info *trinity_get_pi(struct radeon_device *rdev); | |
| 32 | ||
| 33 | static int trinity_notify_message_to_smu(struct radeon_device *rdev, u32 id) | |
| 34 | { | |
| 35 | int i; | |
| 36 | u32 v = 0; | |
| 37 | ||
| 38 | WREG32(SMC_MESSAGE_0, id); | |
| 39 | for (i = 0; i < rdev->usec_timeout; i++) { | |
| 40 | if (RREG32(SMC_RESP_0) != 0) | |
| 41 | break; | |
| 42 | udelay(1); | |
| 43 | } | |
| 44 | v = RREG32(SMC_RESP_0); | |
| 45 | ||
| 46 | if (v != 1) { | |
| 47 | if (v == 0xFF) { | |
| 48 | DRM_ERROR("SMC failed to handle the message!\n"); | |
| 49 | return -EINVAL; | |
| 50 | } else if (v == 0xFE) { | |
| 51 | DRM_ERROR("Unknown SMC message!\n"); | |
| 52 | return -EINVAL; | |
| 53 | } | |
| 54 | } | |
| 55 | ||
| 56 | return 0; | |
| 57 | } | |
| 58 | ||
| 59 | int trinity_dpm_config(struct radeon_device *rdev, bool enable) | |
| 60 | { | |
| 61 | if (enable) | |
| 62 | WREG32_SMC(SMU_SCRATCH0, 1); | |
| 63 | else | |
| 64 | WREG32_SMC(SMU_SCRATCH0, 0); | |
| 65 | ||
| 66 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_Config); | |
| 67 | } | |
| 68 | ||
| 69 | int trinity_dpm_force_state(struct radeon_device *rdev, u32 n) | |
| 70 | { | |
| 71 | WREG32_SMC(SMU_SCRATCH0, n); | |
| 72 | ||
| 73 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_ForceState); | |
| 74 | } | |
| 75 | ||
| 76 | int trinity_dpm_no_forced_level(struct radeon_device *rdev) | |
| 77 | { | |
| 78 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_NoForcedLevel); | |
| 79 | } | |
| 80 | ||
| 81 | int trinity_dce_enable_voltage_adjustment(struct radeon_device *rdev, | |
| 82 | bool enable) | |
| 83 | { | |
| 84 | if (enable) | |
| 85 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DCE_AllowVoltageAdjustment); | |
| 86 | else | |
| 87 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DCE_RemoveVoltageAdjustment); | |
| 88 | } | |
| 89 | ||
| 90 | int trinity_gfx_dynamic_mgpg_config(struct radeon_device *rdev) | |
| 91 | { | |
| 92 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_PG_SIMD_Config); | |
| 93 | } | |
| 94 | ||
| 95 | void trinity_acquire_mutex(struct radeon_device *rdev) | |
| 96 | { | |
| 97 | int i; | |
| 98 | ||
| 99 | WREG32(SMC_INT_REQ, 1); | |
| 100 | for (i = 0; i < rdev->usec_timeout; i++) { | |
| 101 | if ((RREG32(SMC_INT_REQ) & 0xffff) == 1) | |
| 102 | break; | |
| 103 | udelay(1); | |
| 104 | } | |
| 105 | } | |
| 106 | ||
| 107 | void trinity_release_mutex(struct radeon_device *rdev) | |
| 108 | { | |
| 109 | WREG32(SMC_INT_REQ, 0); | |
| 110 | } |