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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 | ||
d70229f7 AD |
24 | #include "radeon.h" |
25 | #include "trinityd.h" | |
26 | #include "trinity_dpm.h" | |
27 | #include "ppsmc.h" | |
28 | ||
d70229f7 AD |
29 | static int trinity_notify_message_to_smu(struct radeon_device *rdev, u32 id) |
30 | { | |
31 | int i; | |
32 | u32 v = 0; | |
33 | ||
34 | WREG32(SMC_MESSAGE_0, id); | |
35 | for (i = 0; i < rdev->usec_timeout; i++) { | |
36 | if (RREG32(SMC_RESP_0) != 0) | |
37 | break; | |
38 | udelay(1); | |
39 | } | |
40 | v = RREG32(SMC_RESP_0); | |
41 | ||
42 | if (v != 1) { | |
43 | if (v == 0xFF) { | |
44 | DRM_ERROR("SMC failed to handle the message!\n"); | |
45 | return -EINVAL; | |
46 | } else if (v == 0xFE) { | |
47 | DRM_ERROR("Unknown SMC message!\n"); | |
48 | return -EINVAL; | |
49 | } | |
50 | } | |
51 | ||
52 | return 0; | |
53 | } | |
54 | ||
ef4e0365 AD |
55 | int trinity_dpm_bapm_enable(struct radeon_device *rdev, bool enable) |
56 | { | |
57 | if (enable) | |
58 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_EnableBAPM); | |
59 | else | |
60 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DisableBAPM); | |
61 | } | |
62 | ||
d70229f7 AD |
63 | int trinity_dpm_config(struct radeon_device *rdev, bool enable) |
64 | { | |
65 | if (enable) | |
66 | WREG32_SMC(SMU_SCRATCH0, 1); | |
67 | else | |
68 | WREG32_SMC(SMU_SCRATCH0, 0); | |
69 | ||
70 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_Config); | |
71 | } | |
72 | ||
73 | int trinity_dpm_force_state(struct radeon_device *rdev, u32 n) | |
74 | { | |
75 | WREG32_SMC(SMU_SCRATCH0, n); | |
76 | ||
77 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_ForceState); | |
78 | } | |
79 | ||
9b5de596 AD |
80 | int trinity_dpm_n_levels_disabled(struct radeon_device *rdev, u32 n) |
81 | { | |
82 | WREG32_SMC(SMU_SCRATCH0, n); | |
83 | ||
84 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_N_LevelsDisabled); | |
85 | } | |
86 | ||
0c4aaeae AD |
87 | int trinity_uvd_dpm_config(struct radeon_device *rdev) |
88 | { | |
89 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_UVD_DPM_Config); | |
90 | } | |
91 | ||
d70229f7 AD |
92 | int trinity_dpm_no_forced_level(struct radeon_device *rdev) |
93 | { | |
94 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_NoForcedLevel); | |
95 | } | |
96 | ||
97 | int trinity_dce_enable_voltage_adjustment(struct radeon_device *rdev, | |
98 | bool enable) | |
99 | { | |
100 | if (enable) | |
101 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DCE_AllowVoltageAdjustment); | |
102 | else | |
103 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DCE_RemoveVoltageAdjustment); | |
104 | } | |
105 | ||
106 | int trinity_gfx_dynamic_mgpg_config(struct radeon_device *rdev) | |
107 | { | |
108 | return trinity_notify_message_to_smu(rdev, PPSMC_MSG_PG_SIMD_Config); | |
109 | } | |
110 | ||
111 | void trinity_acquire_mutex(struct radeon_device *rdev) | |
112 | { | |
113 | int i; | |
114 | ||
115 | WREG32(SMC_INT_REQ, 1); | |
116 | for (i = 0; i < rdev->usec_timeout; i++) { | |
117 | if ((RREG32(SMC_INT_REQ) & 0xffff) == 1) | |
118 | break; | |
119 | udelay(1); | |
120 | } | |
121 | } | |
122 | ||
123 | void trinity_release_mutex(struct radeon_device *rdev) | |
124 | { | |
125 | WREG32(SMC_INT_REQ, 0); | |
126 | } |