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Rev | Author | Line No. | Line |
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1117 | serge | 1 | /* |
2 | * Copyright 2008 Advanced Micro Devices, Inc. |
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3 | * Copyright 2008 Red Hat Inc. |
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4 | * Copyright 2009 Jerome Glisse. |
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5 | * |
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6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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7 | * copy of this software and associated documentation files (the "Software"), |
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8 | * to deal in the Software without restriction, including without limitation |
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9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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10 | * and/or sell copies of the Software, and to permit persons to whom the |
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11 | * Software is furnished to do so, subject to the following conditions: |
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12 | * |
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13 | * The above copyright notice and this permission notice shall be included in |
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14 | * all copies or substantial portions of the Software. |
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15 | * |
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16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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19 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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22 | * OTHER DEALINGS IN THE SOFTWARE. |
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23 | * |
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24 | * Authors: Dave Airlie |
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25 | * Alex Deucher |
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26 | * Jerome Glisse |
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27 | */ |
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28 | //#include |
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29 | //#include "drmP.h" |
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30 | #include "radeon_drm.h" |
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31 | #include "radeon_reg.h" |
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32 | #include "radeon.h" |
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33 | #include "atom.h" |
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34 | |||
1119 | serge | 35 | extern void * ring_buffer; |
36 | |||
1117 | serge | 37 | #if 0 |
38 | int radeon_debugfs_ib_init(struct radeon_device *rdev); |
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39 | |||
40 | /* |
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41 | * IB. |
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42 | */ |
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43 | int radeon_ib_get(struct radeon_device *rdev, struct radeon_ib **ib) |
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44 | { |
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45 | struct radeon_fence *fence; |
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46 | struct radeon_ib *nib; |
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47 | unsigned long i; |
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48 | int r = 0; |
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49 | |||
50 | *ib = NULL; |
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51 | r = radeon_fence_create(rdev, &fence); |
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52 | if (r) { |
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53 | DRM_ERROR("failed to create fence for new IB\n"); |
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54 | return r; |
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55 | } |
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56 | mutex_lock(&rdev->ib_pool.mutex); |
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57 | i = find_first_zero_bit(rdev->ib_pool.alloc_bm, RADEON_IB_POOL_SIZE); |
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58 | if (i < RADEON_IB_POOL_SIZE) { |
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59 | set_bit(i, rdev->ib_pool.alloc_bm); |
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60 | rdev->ib_pool.ibs[i].length_dw = 0; |
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61 | *ib = &rdev->ib_pool.ibs[i]; |
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62 | goto out; |
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63 | } |
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64 | if (list_empty(&rdev->ib_pool.scheduled_ibs)) { |
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65 | /* we go do nothings here */ |
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66 | DRM_ERROR("all IB allocated none scheduled.\n"); |
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67 | r = -EINVAL; |
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68 | goto out; |
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69 | } |
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70 | /* get the first ib on the scheduled list */ |
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71 | nib = list_entry(rdev->ib_pool.scheduled_ibs.next, |
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72 | struct radeon_ib, list); |
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73 | if (nib->fence == NULL) { |
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74 | /* we go do nothings here */ |
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75 | DRM_ERROR("IB %lu scheduled without a fence.\n", nib->idx); |
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76 | r = -EINVAL; |
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77 | goto out; |
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78 | } |
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79 | r = radeon_fence_wait(nib->fence, false); |
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80 | if (r) { |
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81 | DRM_ERROR("radeon: IB(%lu:0x%016lX:%u)\n", nib->idx, |
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82 | (unsigned long)nib->gpu_addr, nib->length_dw); |
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83 | DRM_ERROR("radeon: GPU lockup detected, fail to get a IB\n"); |
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84 | goto out; |
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85 | } |
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86 | radeon_fence_unref(&nib->fence); |
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87 | nib->length_dw = 0; |
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88 | list_del(&nib->list); |
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89 | INIT_LIST_HEAD(&nib->list); |
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90 | *ib = nib; |
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91 | out: |
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92 | mutex_unlock(&rdev->ib_pool.mutex); |
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93 | if (r) { |
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94 | radeon_fence_unref(&fence); |
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95 | } else { |
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96 | (*ib)->fence = fence; |
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97 | } |
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98 | return r; |
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99 | } |
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100 | |||
101 | void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib **ib) |
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102 | { |
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103 | struct radeon_ib *tmp = *ib; |
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104 | |||
105 | *ib = NULL; |
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106 | if (tmp == NULL) { |
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107 | return; |
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108 | } |
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109 | mutex_lock(&rdev->ib_pool.mutex); |
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110 | if (!list_empty(&tmp->list) && !radeon_fence_signaled(tmp->fence)) { |
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111 | /* IB is scheduled & not signaled don't do anythings */ |
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112 | mutex_unlock(&rdev->ib_pool.mutex); |
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113 | return; |
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114 | } |
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115 | list_del(&tmp->list); |
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116 | INIT_LIST_HEAD(&tmp->list); |
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117 | if (tmp->fence) { |
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118 | radeon_fence_unref(&tmp->fence); |
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119 | } |
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120 | tmp->length_dw = 0; |
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121 | clear_bit(tmp->idx, rdev->ib_pool.alloc_bm); |
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122 | mutex_unlock(&rdev->ib_pool.mutex); |
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123 | } |
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124 | |||
125 | static void radeon_ib_align(struct radeon_device *rdev, struct radeon_ib *ib) |
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126 | { |
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127 | while ((ib->length_dw & rdev->cp.align_mask)) { |
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128 | ib->ptr[ib->length_dw++] = PACKET2(0); |
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129 | } |
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130 | } |
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131 | |||
132 | static void radeon_ib_cpu_flush(struct radeon_device *rdev, |
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133 | struct radeon_ib *ib) |
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134 | { |
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135 | unsigned long tmp; |
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136 | unsigned i; |
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137 | |||
138 | /* To force CPU cache flush ugly but seems reliable */ |
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139 | for (i = 0; i < ib->length_dw; i += (rdev->cp.align_mask + 1)) { |
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140 | tmp = readl(&ib->ptr[i]); |
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141 | } |
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142 | } |
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143 | |||
144 | int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib) |
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145 | { |
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146 | int r = 0; |
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147 | |||
148 | mutex_lock(&rdev->ib_pool.mutex); |
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149 | radeon_ib_align(rdev, ib); |
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150 | radeon_ib_cpu_flush(rdev, ib); |
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151 | if (!ib->length_dw || !rdev->cp.ready) { |
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152 | /* TODO: Nothings in the ib we should report. */ |
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153 | mutex_unlock(&rdev->ib_pool.mutex); |
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154 | DRM_ERROR("radeon: couldn't schedule IB(%lu).\n", ib->idx); |
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155 | return -EINVAL; |
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156 | } |
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157 | /* 64 dwords should be enought for fence too */ |
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158 | r = radeon_ring_lock(rdev, 64); |
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159 | if (r) { |
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160 | DRM_ERROR("radeon: scheduling IB failled (%d).\n", r); |
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161 | mutex_unlock(&rdev->ib_pool.mutex); |
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162 | return r; |
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163 | } |
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164 | radeon_ring_write(rdev, PACKET0(RADEON_CP_IB_BASE, 1)); |
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165 | radeon_ring_write(rdev, ib->gpu_addr); |
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166 | radeon_ring_write(rdev, ib->length_dw); |
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167 | radeon_fence_emit(rdev, ib->fence); |
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168 | radeon_ring_unlock_commit(rdev); |
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169 | list_add_tail(&ib->list, &rdev->ib_pool.scheduled_ibs); |
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170 | mutex_unlock(&rdev->ib_pool.mutex); |
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171 | return 0; |
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172 | } |
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173 | |||
174 | int radeon_ib_pool_init(struct radeon_device *rdev) |
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175 | { |
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176 | void *ptr; |
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177 | uint64_t gpu_addr; |
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178 | int i; |
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179 | int r = 0; |
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180 | |||
181 | /* Allocate 1M object buffer */ |
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182 | INIT_LIST_HEAD(&rdev->ib_pool.scheduled_ibs); |
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183 | r = radeon_object_create(rdev, NULL, RADEON_IB_POOL_SIZE*64*1024, |
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184 | true, RADEON_GEM_DOMAIN_GTT, |
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185 | false, &rdev->ib_pool.robj); |
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186 | if (r) { |
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187 | DRM_ERROR("radeon: failed to ib pool (%d).\n", r); |
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188 | return r; |
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189 | } |
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190 | r = radeon_object_pin(rdev->ib_pool.robj, RADEON_GEM_DOMAIN_GTT, &gpu_addr); |
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191 | if (r) { |
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192 | DRM_ERROR("radeon: failed to pin ib pool (%d).\n", r); |
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193 | return r; |
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194 | } |
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195 | r = radeon_object_kmap(rdev->ib_pool.robj, &ptr); |
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196 | if (r) { |
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197 | DRM_ERROR("radeon: failed to map ib poll (%d).\n", r); |
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198 | return r; |
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199 | } |
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200 | for (i = 0; i < RADEON_IB_POOL_SIZE; i++) { |
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201 | unsigned offset; |
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202 | |||
203 | offset = i * 64 * 1024; |
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204 | rdev->ib_pool.ibs[i].gpu_addr = gpu_addr + offset; |
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205 | rdev->ib_pool.ibs[i].ptr = ptr + offset; |
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206 | rdev->ib_pool.ibs[i].idx = i; |
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207 | rdev->ib_pool.ibs[i].length_dw = 0; |
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208 | INIT_LIST_HEAD(&rdev->ib_pool.ibs[i].list); |
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209 | } |
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210 | bitmap_zero(rdev->ib_pool.alloc_bm, RADEON_IB_POOL_SIZE); |
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211 | rdev->ib_pool.ready = true; |
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212 | DRM_INFO("radeon: ib pool ready.\n"); |
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213 | if (radeon_debugfs_ib_init(rdev)) { |
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214 | DRM_ERROR("Failed to register debugfs file for IB !\n"); |
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215 | } |
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216 | return r; |
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217 | } |
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218 | |||
219 | void radeon_ib_pool_fini(struct radeon_device *rdev) |
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220 | { |
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221 | if (!rdev->ib_pool.ready) { |
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222 | return; |
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223 | } |
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224 | mutex_lock(&rdev->ib_pool.mutex); |
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225 | bitmap_zero(rdev->ib_pool.alloc_bm, RADEON_IB_POOL_SIZE); |
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226 | if (rdev->ib_pool.robj) { |
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227 | radeon_object_kunmap(rdev->ib_pool.robj); |
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228 | radeon_object_unref(&rdev->ib_pool.robj); |
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229 | rdev->ib_pool.robj = NULL; |
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230 | } |
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231 | mutex_unlock(&rdev->ib_pool.mutex); |
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232 | } |
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233 | |||
234 | int radeon_ib_test(struct radeon_device *rdev) |
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235 | { |
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236 | struct radeon_ib *ib; |
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237 | uint32_t scratch; |
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238 | uint32_t tmp = 0; |
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239 | unsigned i; |
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240 | int r; |
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241 | |||
242 | r = radeon_scratch_get(rdev, &scratch); |
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243 | if (r) { |
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244 | DRM_ERROR("radeon: failed to get scratch reg (%d).\n", r); |
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245 | return r; |
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246 | } |
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247 | WREG32(scratch, 0xCAFEDEAD); |
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248 | r = radeon_ib_get(rdev, &ib); |
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249 | if (r) { |
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250 | return r; |
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251 | } |
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252 | ib->ptr[0] = PACKET0(scratch, 0); |
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253 | ib->ptr[1] = 0xDEADBEEF; |
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254 | ib->ptr[2] = PACKET2(0); |
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255 | ib->ptr[3] = PACKET2(0); |
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256 | ib->ptr[4] = PACKET2(0); |
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257 | ib->ptr[5] = PACKET2(0); |
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258 | ib->ptr[6] = PACKET2(0); |
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259 | ib->ptr[7] = PACKET2(0); |
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260 | ib->length_dw = 8; |
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261 | r = radeon_ib_schedule(rdev, ib); |
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262 | if (r) { |
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263 | radeon_scratch_free(rdev, scratch); |
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264 | radeon_ib_free(rdev, &ib); |
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265 | return r; |
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266 | } |
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267 | r = radeon_fence_wait(ib->fence, false); |
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268 | if (r) { |
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269 | return r; |
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270 | } |
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271 | for (i = 0; i < rdev->usec_timeout; i++) { |
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272 | tmp = RREG32(scratch); |
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273 | if (tmp == 0xDEADBEEF) { |
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274 | break; |
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275 | } |
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276 | DRM_UDELAY(1); |
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277 | } |
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278 | if (i < rdev->usec_timeout) { |
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279 | DRM_INFO("ib test succeeded in %u usecs\n", i); |
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280 | } else { |
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281 | DRM_ERROR("radeon: ib test failed (sracth(0x%04X)=0x%08X)\n", |
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282 | scratch, tmp); |
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283 | r = -EINVAL; |
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284 | } |
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285 | radeon_scratch_free(rdev, scratch); |
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286 | radeon_ib_free(rdev, &ib); |
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287 | return r; |
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288 | } |
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289 | |||
290 | #endif |
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291 | |||
292 | /* |
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293 | * Ring. |
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294 | */ |
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295 | void radeon_ring_free_size(struct radeon_device *rdev) |
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296 | { |
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297 | rdev->cp.rptr = RREG32(RADEON_CP_RB_RPTR); |
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298 | /* This works because ring_size is a power of 2 */ |
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299 | rdev->cp.ring_free_dw = (rdev->cp.rptr + (rdev->cp.ring_size / 4)); |
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300 | rdev->cp.ring_free_dw -= rdev->cp.wptr; |
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301 | rdev->cp.ring_free_dw &= rdev->cp.ptr_mask; |
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302 | if (!rdev->cp.ring_free_dw) { |
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303 | rdev->cp.ring_free_dw = rdev->cp.ring_size / 4; |
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304 | } |
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305 | } |
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306 | |||
307 | int radeon_ring_lock(struct radeon_device *rdev, unsigned ndw) |
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308 | { |
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309 | int r; |
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310 | |||
311 | /* Align requested size with padding so unlock_commit can |
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312 | * pad safely */ |
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313 | ndw = (ndw + rdev->cp.align_mask) & ~rdev->cp.align_mask; |
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314 | // mutex_lock(&rdev->cp.mutex); |
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315 | while (ndw > (rdev->cp.ring_free_dw - 1)) { |
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316 | radeon_ring_free_size(rdev); |
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317 | if (ndw < rdev->cp.ring_free_dw) { |
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318 | break; |
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319 | } |
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320 | delay(1); |
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321 | |||
322 | // r = radeon_fence_wait_next(rdev); |
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323 | // if (r) { |
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324 | // mutex_unlock(&rdev->cp.mutex); |
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325 | // return r; |
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326 | // } |
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327 | } |
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328 | rdev->cp.count_dw = ndw; |
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329 | rdev->cp.wptr_old = rdev->cp.wptr; |
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330 | return 0; |
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331 | } |
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332 | |||
333 | void radeon_ring_unlock_commit(struct radeon_device *rdev) |
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334 | { |
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335 | unsigned count_dw_pad; |
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336 | unsigned i; |
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337 | |||
338 | /* We pad to match fetch size */ |
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339 | count_dw_pad = (rdev->cp.align_mask + 1) - |
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340 | (rdev->cp.wptr & rdev->cp.align_mask); |
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341 | for (i = 0; i < count_dw_pad; i++) { |
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342 | radeon_ring_write(rdev, PACKET2(0)); |
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343 | } |
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344 | DRM_MEMORYBARRIER(); |
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345 | WREG32(RADEON_CP_RB_WPTR, rdev->cp.wptr); |
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346 | (void)RREG32(RADEON_CP_RB_WPTR); |
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347 | // mutex_unlock(&rdev->cp.mutex); |
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348 | } |
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349 | |||
350 | void radeon_ring_unlock_undo(struct radeon_device *rdev) |
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351 | { |
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352 | rdev->cp.wptr = rdev->cp.wptr_old; |
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353 | // mutex_unlock(&rdev->cp.mutex); |
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354 | } |
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355 | |||
356 | |||
357 | int radeon_ring_test(struct radeon_device *rdev) |
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358 | { |
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359 | uint32_t scratch; |
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360 | uint32_t tmp = 0; |
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361 | unsigned i; |
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362 | int r; |
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363 | |||
1119 | serge | 364 | dbgprintf("%s\n",__FUNCTION__); |
1117 | serge | 365 | |
366 | r = radeon_scratch_get(rdev, &scratch); |
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367 | if (r) { |
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368 | DRM_ERROR("radeon: cp failed to get scratch reg (%d).\n", r); |
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369 | return r; |
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370 | } |
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371 | WREG32(scratch, 0xCAFEDEAD); |
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372 | r = radeon_ring_lock(rdev, 2); |
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373 | if (r) { |
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374 | DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r); |
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375 | radeon_scratch_free(rdev, scratch); |
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376 | return r; |
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377 | } |
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378 | radeon_ring_write(rdev, PACKET0(scratch, 0)); |
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379 | radeon_ring_write(rdev, 0xDEADBEEF); |
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380 | radeon_ring_unlock_commit(rdev); |
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1119 | serge | 381 | for (i = 0; i < 100000; i++) { |
1117 | serge | 382 | tmp = RREG32(scratch); |
383 | if (tmp == 0xDEADBEEF) { |
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384 | break; |
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385 | } |
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1119 | serge | 386 | DRM_UDELAY(1); |
1117 | serge | 387 | } |
1119 | serge | 388 | if (i < 100000) { |
1117 | serge | 389 | DRM_INFO("ring test succeeded in %d usecs\n", i); |
390 | } else { |
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391 | DRM_ERROR("radeon: ring test failed (sracth(0x%04X)=0x%08X)\n", |
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392 | scratch, tmp); |
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393 | r = -EINVAL; |
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394 | } |
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395 | radeon_scratch_free(rdev, scratch); |
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1119 | serge | 396 | |
397 | dbgprintf("done %s\n",__FUNCTION__); |
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1117 | serge | 398 | return r; |
399 | } |
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400 | |||
401 | |||
1119 | serge | 402 | int radeon_gart_bind(struct radeon_device *rdev, unsigned offset, |
403 | int pages, u32_t *pagelist); |
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404 | |||
405 | #define page_tabs 0xFDC00000 |
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406 | |||
407 | |||
1117 | serge | 408 | int radeon_ring_init(struct radeon_device *rdev, unsigned ring_size) |
409 | { |
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410 | int r; |
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411 | |||
1119 | serge | 412 | dbgprintf("%s\n",__FUNCTION__); |
1117 | serge | 413 | |
414 | rdev->cp.ring_size = ring_size; |
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415 | |||
416 | #if 0 |
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417 | /* Allocate ring buffer */ |
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418 | if (rdev->cp.ring_obj == NULL) { |
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419 | r = radeon_object_create(rdev, NULL, rdev->cp.ring_size, |
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420 | true, |
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421 | RADEON_GEM_DOMAIN_GTT, |
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422 | false, |
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423 | &rdev->cp.ring_obj); |
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424 | if (r) { |
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425 | DRM_ERROR("radeon: failed to create ring buffer (%d).\n", r); |
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426 | // mutex_unlock(&rdev->cp.mutex); |
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427 | return r; |
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428 | } |
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429 | r = radeon_object_pin(rdev->cp.ring_obj, |
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430 | RADEON_GEM_DOMAIN_GTT, |
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431 | &rdev->cp.gpu_addr); |
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432 | if (r) { |
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433 | DRM_ERROR("radeon: failed to pin ring buffer (%d).\n", r); |
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434 | // mutex_unlock(&rdev->cp.mutex); |
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435 | return r; |
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436 | } |
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437 | r = radeon_object_kmap(rdev->cp.ring_obj, |
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438 | (void **)&rdev->cp.ring); |
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439 | if (r) { |
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440 | DRM_ERROR("radeon: failed to map ring buffer (%d).\n", r); |
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441 | // mutex_unlock(&rdev->cp.mutex); |
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442 | return r; |
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443 | } |
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444 | } |
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445 | #endif |
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446 | |||
1119 | serge | 447 | dbgprintf("ring size %x\n", ring_size); |
448 | |||
449 | dbgprintf("ring buffer %x\n", rdev->cp.ring ); |
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450 | |||
451 | rdev->cp.ring = ring_buffer; //CreateRingBuffer( ring_size, PG_SW ); |
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452 | |||
453 | dbgprintf("ring buffer %x\n", rdev->cp.ring ); |
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454 | |||
455 | rdev->cp.gpu_addr = rdev->mc.gtt_location; |
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456 | |||
457 | u32_t *pagelist = &((u32_t*)page_tabs)[(u32_t)rdev->cp.ring >> 12]; |
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458 | |||
459 | dbgprintf("pagelist %x\n", pagelist); |
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460 | |||
461 | radeon_gart_bind(rdev, 0, ring_size / 4096, pagelist); |
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462 | |||
1117 | serge | 463 | rdev->cp.ptr_mask = (rdev->cp.ring_size / 4) - 1; |
464 | rdev->cp.ring_free_dw = rdev->cp.ring_size / 4; |
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1119 | serge | 465 | |
466 | dbgprintf("done %s\n",__FUNCTION__); |
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467 | |||
1117 | serge | 468 | return 0; |
469 | } |
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470 | |||
471 | void radeon_ring_fini(struct radeon_device *rdev) |
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472 | { |
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473 | // mutex_lock(&rdev->cp.mutex); |
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474 | if (rdev->cp.ring_obj) { |
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475 | // radeon_object_kunmap(rdev->cp.ring_obj); |
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476 | // radeon_object_unpin(rdev->cp.ring_obj); |
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477 | // radeon_object_unref(&rdev->cp.ring_obj); |
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478 | rdev->cp.ring = NULL; |
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479 | rdev->cp.ring_obj = NULL; |
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480 | } |
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481 | // mutex_unlock(&rdev->cp.mutex); |
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482 | } |
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483 | |||
484 | |||
485 | /* |
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486 | * Debugfs info |
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487 | */ |
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488 | #if defined(CONFIG_DEBUG_FS) |
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489 | static int radeon_debugfs_ib_info(struct seq_file *m, void *data) |
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490 | { |
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491 | struct drm_info_node *node = (struct drm_info_node *) m->private; |
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492 | struct radeon_ib *ib = node->info_ent->data; |
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493 | unsigned i; |
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494 | |||
495 | if (ib == NULL) { |
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496 | return 0; |
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497 | } |
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498 | seq_printf(m, "IB %04lu\n", ib->idx); |
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499 | seq_printf(m, "IB fence %p\n", ib->fence); |
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500 | seq_printf(m, "IB size %05u dwords\n", ib->length_dw); |
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501 | for (i = 0; i < ib->length_dw; i++) { |
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502 | seq_printf(m, "[%05u]=0x%08X\n", i, ib->ptr[i]); |
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503 | } |
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504 | return 0; |
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505 | } |
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506 | |||
507 | static struct drm_info_list radeon_debugfs_ib_list[RADEON_IB_POOL_SIZE]; |
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508 | static char radeon_debugfs_ib_names[RADEON_IB_POOL_SIZE][32]; |
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509 | #endif |
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510 | |||
511 | int radeon_debugfs_ib_init(struct radeon_device *rdev) |
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512 | { |
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513 | #if defined(CONFIG_DEBUG_FS) |
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514 | unsigned i; |
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515 | |||
516 | for (i = 0; i < RADEON_IB_POOL_SIZE; i++) { |
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517 | sprintf(radeon_debugfs_ib_names[i], "radeon_ib_%04u", i); |
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518 | radeon_debugfs_ib_list[i].name = radeon_debugfs_ib_names[i]; |
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519 | radeon_debugfs_ib_list[i].show = &radeon_debugfs_ib_info; |
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520 | radeon_debugfs_ib_list[i].driver_features = 0; |
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521 | radeon_debugfs_ib_list[i].data = &rdev->ib_pool.ibs[i]; |
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522 | } |
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523 | return radeon_debugfs_add_files(rdev, radeon_debugfs_ib_list, |
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524 | RADEON_IB_POOL_SIZE); |
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525 | #else |
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526 | return 0; |
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527 | #endif |
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528 | } |
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529 | |||
530 | |||
531 | int drm_order(unsigned long size) |
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532 | { |
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533 | int order; |
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534 | unsigned long tmp; |
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535 | |||
536 | for (order = 0, tmp = size >> 1; tmp; tmp >>= 1, order++) ; |
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537 | |||
538 | if (size & (size - 1)) |
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539 | ++order; |
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540 | |||
541 | return order; |
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542 | }>>>>>>>>>>> |
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543 |