drm/radeon: Store PCI controller in struct radeon_device.hose
[linux-2.6-microblaze.git] / drivers / gpu / drm / radeon / sumo_smc.c
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 "radeon.h"
25 #include "sumod.h"
26 #include "sumo_dpm.h"
27 #include "ppsmc.h"
28
29 #define SUMO_SMU_SERVICE_ROUTINE_PG_INIT        1
30 #define SUMO_SMU_SERVICE_ROUTINE_ALTVDDNB_NOTIFY  27
31 #define SUMO_SMU_SERVICE_ROUTINE_GFX_SRV_ID_20  20
32
33 static void sumo_send_msg_to_smu(struct radeon_device *rdev, u32 id)
34 {
35         u32 gfx_int_req;
36         int i;
37
38         for (i = 0; i < rdev->usec_timeout; i++) {
39                 if (RREG32(GFX_INT_STATUS) & INT_DONE)
40                         break;
41                 udelay(1);
42         }
43
44         gfx_int_req = SERV_INDEX(id) | INT_REQ;
45         WREG32(GFX_INT_REQ, gfx_int_req);
46
47         for (i = 0; i < rdev->usec_timeout; i++) {
48                 if (RREG32(GFX_INT_REQ) & INT_REQ)
49                         break;
50                 udelay(1);
51         }
52
53         for (i = 0; i < rdev->usec_timeout; i++) {
54                 if (RREG32(GFX_INT_STATUS) & INT_ACK)
55                         break;
56                 udelay(1);
57         }
58
59         for (i = 0; i < rdev->usec_timeout; i++) {
60                 if (RREG32(GFX_INT_STATUS) & INT_DONE)
61                         break;
62                 udelay(1);
63         }
64
65         gfx_int_req &= ~INT_REQ;
66         WREG32(GFX_INT_REQ, gfx_int_req);
67 }
68
69 void sumo_initialize_m3_arb(struct radeon_device *rdev)
70 {
71         struct sumo_power_info *pi = sumo_get_pi(rdev);
72         u32 i;
73
74         if (!pi->enable_dynamic_m3_arbiter)
75                 return;
76
77         for (i = 0; i < NUMBER_OF_M3ARB_PARAM_SETS; i++)
78                 WREG32_RCU(MCU_M3ARB_PARAMS + (i * 4),
79                            pi->sys_info.csr_m3_arb_cntl_default[i]);
80
81         for (; i < NUMBER_OF_M3ARB_PARAM_SETS * 2; i++)
82                 WREG32_RCU(MCU_M3ARB_PARAMS + (i * 4),
83                            pi->sys_info.csr_m3_arb_cntl_uvd[i % NUMBER_OF_M3ARB_PARAM_SETS]);
84
85         for (; i < NUMBER_OF_M3ARB_PARAM_SETS * 3; i++)
86                 WREG32_RCU(MCU_M3ARB_PARAMS + (i * 4),
87                            pi->sys_info.csr_m3_arb_cntl_fs3d[i % NUMBER_OF_M3ARB_PARAM_SETS]);
88 }
89
90 static bool sumo_is_alt_vddnb_supported(struct radeon_device *rdev)
91 {
92         struct sumo_power_info *pi = sumo_get_pi(rdev);
93         bool return_code = false;
94
95         if (!pi->enable_alt_vddnb)
96                 return return_code;
97
98         if ((rdev->family == CHIP_SUMO) || (rdev->family == CHIP_SUMO2)) {
99                 if (pi->fw_version >= 0x00010C00)
100                         return_code = true;
101         }
102
103         return return_code;
104 }
105
106 void sumo_smu_notify_alt_vddnb_change(struct radeon_device *rdev,
107                                       bool powersaving, bool force_nbps1)
108 {
109         u32 param = 0;
110
111         if (!sumo_is_alt_vddnb_supported(rdev))
112                 return;
113
114         if (powersaving)
115                 param |= 1;
116
117         if (force_nbps1)
118                 param |= 2;
119
120         WREG32_RCU(RCU_ALTVDDNB_NOTIFY, param);
121
122         sumo_send_msg_to_smu(rdev, SUMO_SMU_SERVICE_ROUTINE_ALTVDDNB_NOTIFY);
123 }
124
125 void sumo_smu_pg_init(struct radeon_device *rdev)
126 {
127         sumo_send_msg_to_smu(rdev, SUMO_SMU_SERVICE_ROUTINE_PG_INIT);
128 }
129
130 static u32 sumo_power_of_4(u32 unit)
131 {
132         u32 ret = 1;
133         u32 i;
134
135         for (i = 0; i < unit; i++)
136                 ret *= 4;
137
138         return ret;
139 }
140
141 void sumo_enable_boost_timer(struct radeon_device *rdev)
142 {
143         struct sumo_power_info *pi = sumo_get_pi(rdev);
144         u32 period, unit, timer_value;
145         u32 xclk = radeon_get_xclk(rdev);
146
147         unit = (RREG32_RCU(RCU_LCLK_SCALING_CNTL) & LCLK_SCALING_TIMER_PRESCALER_MASK)
148                 >> LCLK_SCALING_TIMER_PRESCALER_SHIFT;
149
150         period = 100 * (xclk / 100 / sumo_power_of_4(unit));
151
152         timer_value = (period << 16) | (unit << 4);
153
154         WREG32_RCU(RCU_GNB_PWR_REP_TIMER_CNTL, timer_value);
155         WREG32_RCU(RCU_BOOST_MARGIN, pi->sys_info.sclk_dpm_boost_margin);
156         WREG32_RCU(RCU_THROTTLE_MARGIN, pi->sys_info.sclk_dpm_throttle_margin);
157         WREG32_RCU(GNB_TDP_LIMIT, pi->sys_info.gnb_tdp_limit);
158         WREG32_RCU(RCU_SclkDpmTdpLimitPG, pi->sys_info.sclk_dpm_tdp_limit_pg);
159
160         sumo_send_msg_to_smu(rdev, SUMO_SMU_SERVICE_ROUTINE_GFX_SRV_ID_20);
161 }
162
163 void sumo_set_tdp_limit(struct radeon_device *rdev, u32 index, u32 tdp_limit)
164 {
165         u32 regoffset = 0;
166         u32 shift = 0;
167         u32 mask = 0xFFF;
168         u32 sclk_dpm_tdp_limit;
169
170         switch (index) {
171         case 0:
172                 regoffset = RCU_SclkDpmTdpLimit01;
173                 shift = 16;
174                 break;
175         case 1:
176                 regoffset = RCU_SclkDpmTdpLimit01;
177                 shift = 0;
178                 break;
179         case 2:
180                 regoffset = RCU_SclkDpmTdpLimit23;
181                 shift = 16;
182                 break;
183         case 3:
184                 regoffset = RCU_SclkDpmTdpLimit23;
185                 shift = 0;
186                 break;
187         case 4:
188                 regoffset = RCU_SclkDpmTdpLimit47;
189                 shift = 16;
190                 break;
191         case 7:
192                 regoffset = RCU_SclkDpmTdpLimit47;
193                 shift = 0;
194                 break;
195         default:
196                 break;
197         }
198
199         sclk_dpm_tdp_limit = RREG32_RCU(regoffset);
200         sclk_dpm_tdp_limit &= ~(mask << shift);
201         sclk_dpm_tdp_limit |= (tdp_limit << shift);
202         WREG32_RCU(regoffset, sclk_dpm_tdp_limit);
203 }
204
205 void sumo_boost_state_enable(struct radeon_device *rdev, bool enable)
206 {
207         u32 boost_disable = RREG32_RCU(RCU_GPU_BOOST_DISABLE);
208
209         boost_disable &= 0xFFFFFFFE;
210         boost_disable |= (enable ? 0 : 1);
211         WREG32_RCU(RCU_GPU_BOOST_DISABLE, boost_disable);
212 }
213
214 u32 sumo_get_running_fw_version(struct radeon_device *rdev)
215 {
216         return RREG32_RCU(RCU_FW_VERSION);
217 }
218