1 /*
2 * Copyright 2018 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 #include "amdgpu.h"
24 #include "df_v1_7.h"
25
26 #include "df/df_1_7_default.h"
27 #include "df/df_1_7_offset.h"
28 #include "df/df_1_7_sh_mask.h"
29
30 static u32 df_v1_7_channel_number[] = {1, 2, 0, 4, 0, 8, 0, 16, 2};
31
df_v1_7_sw_init(struct amdgpu_device * adev)32 static void df_v1_7_sw_init(struct amdgpu_device *adev)
33 {
34 adev->df.hash_status.hash_64k = false;
35 adev->df.hash_status.hash_2m = false;
36 adev->df.hash_status.hash_1g = false;
37 }
38
df_v1_7_sw_fini(struct amdgpu_device * adev)39 static void df_v1_7_sw_fini(struct amdgpu_device *adev)
40 {
41 }
42
df_v1_7_enable_broadcast_mode(struct amdgpu_device * adev,bool enable)43 static void df_v1_7_enable_broadcast_mode(struct amdgpu_device *adev,
44 bool enable)
45 {
46 u32 tmp;
47
48 if (enable) {
49 tmp = RREG32_SOC15(DF, 0, mmFabricConfigAccessControl);
50 tmp &= ~FabricConfigAccessControl__CfgRegInstAccEn_MASK;
51 WREG32_SOC15(DF, 0, mmFabricConfigAccessControl, tmp);
52 } else
53 WREG32_SOC15(DF, 0, mmFabricConfigAccessControl,
54 mmFabricConfigAccessControl_DEFAULT);
55 }
56
df_v1_7_get_fb_channel_number(struct amdgpu_device * adev)57 static u32 df_v1_7_get_fb_channel_number(struct amdgpu_device *adev)
58 {
59 u32 tmp;
60
61 tmp = RREG32_SOC15(DF, 0, mmDF_CS_AON0_DramBaseAddress0);
62 tmp &= DF_CS_AON0_DramBaseAddress0__IntLvNumChan_MASK;
63 tmp >>= DF_CS_AON0_DramBaseAddress0__IntLvNumChan__SHIFT;
64
65 return tmp;
66 }
67
df_v1_7_get_hbm_channel_number(struct amdgpu_device * adev)68 static u32 df_v1_7_get_hbm_channel_number(struct amdgpu_device *adev)
69 {
70 int fb_channel_number;
71
72 fb_channel_number = adev->df.funcs->get_fb_channel_number(adev);
73
74 return df_v1_7_channel_number[fb_channel_number];
75 }
76
df_v1_7_update_medium_grain_clock_gating(struct amdgpu_device * adev,bool enable)77 static void df_v1_7_update_medium_grain_clock_gating(struct amdgpu_device *adev,
78 bool enable)
79 {
80 u32 tmp;
81
82 /* Put DF on broadcast mode */
83 adev->df.funcs->enable_broadcast_mode(adev, true);
84
85 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_DF_MGCG)) {
86 tmp = RREG32_SOC15(DF, 0, mmDF_PIE_AON0_DfGlobalClkGater);
87 tmp &= ~DF_PIE_AON0_DfGlobalClkGater__MGCGMode_MASK;
88 tmp |= DF_V1_7_MGCG_ENABLE_15_CYCLE_DELAY;
89 WREG32_SOC15(DF, 0, mmDF_PIE_AON0_DfGlobalClkGater, tmp);
90 } else {
91 tmp = RREG32_SOC15(DF, 0, mmDF_PIE_AON0_DfGlobalClkGater);
92 tmp &= ~DF_PIE_AON0_DfGlobalClkGater__MGCGMode_MASK;
93 tmp |= DF_V1_7_MGCG_DISABLE;
94 WREG32_SOC15(DF, 0, mmDF_PIE_AON0_DfGlobalClkGater, tmp);
95 }
96
97 /* Exit broadcast mode */
98 adev->df.funcs->enable_broadcast_mode(adev, false);
99 }
100
df_v1_7_get_clockgating_state(struct amdgpu_device * adev,u64 * flags)101 static void df_v1_7_get_clockgating_state(struct amdgpu_device *adev,
102 u64 *flags)
103 {
104 u32 tmp;
105
106 /* AMD_CG_SUPPORT_DF_MGCG */
107 tmp = RREG32_SOC15(DF, 0, mmDF_PIE_AON0_DfGlobalClkGater);
108 if (tmp & DF_V1_7_MGCG_ENABLE_15_CYCLE_DELAY)
109 *flags |= AMD_CG_SUPPORT_DF_MGCG;
110 }
111
df_v1_7_enable_ecc_force_par_wr_rmw(struct amdgpu_device * adev,bool enable)112 static void df_v1_7_enable_ecc_force_par_wr_rmw(struct amdgpu_device *adev,
113 bool enable)
114 {
115 WREG32_FIELD15(DF, 0, DF_CS_AON0_CoherentSlaveModeCtrlA0,
116 ForceParWrRMW, enable);
117 }
118
119 const struct amdgpu_df_funcs df_v1_7_funcs = {
120 .sw_init = df_v1_7_sw_init,
121 .sw_fini = df_v1_7_sw_fini,
122 .enable_broadcast_mode = df_v1_7_enable_broadcast_mode,
123 .get_fb_channel_number = df_v1_7_get_fb_channel_number,
124 .get_hbm_channel_number = df_v1_7_get_hbm_channel_number,
125 .update_medium_grain_clock_gating = df_v1_7_update_medium_grain_clock_gating,
126 .get_clockgating_state = df_v1_7_get_clockgating_state,
127 .enable_ecc_force_par_wr_rmw = df_v1_7_enable_ecc_force_par_wr_rmw,
128 };
129