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1126 | serge | 1 | /* |
2 | * Copyright © 2007 David Airlie |
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3 | * |
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4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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5 | * copy of this software and associated documentation files (the "Software"), |
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6 | * to deal in the Software without restriction, including without limitation |
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7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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8 | * and/or sell copies of the Software, and to permit persons to whom the |
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9 | * Software is furnished to do so, subject to the following conditions: |
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10 | * |
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11 | * The above copyright notice and this permission notice (including the next |
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12 | * paragraph) shall be included in all copies or substantial portions of the |
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13 | * Software. |
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14 | * |
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15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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21 | * DEALINGS IN THE SOFTWARE. |
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22 | * |
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23 | * Authors: |
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24 | * David Airlie |
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25 | */ |
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26 | /* |
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27 | * Modularization |
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28 | */ |
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29 | |||
1179 | serge | 30 | #include |
31 | #include |
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1126 | serge | 32 | |
33 | #include "drmP.h" |
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34 | #include "drm.h" |
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35 | #include "drm_crtc.h" |
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36 | #include "drm_crtc_helper.h" |
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37 | #include "radeon_drm.h" |
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38 | #include "radeon.h" |
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39 | |||
1179 | serge | 40 | #include "drm_fb_helper.h" |
41 | |||
1126 | serge | 42 | #include |
43 | #include "radeon_object.h" |
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44 | |||
1233 | serge | 45 | |
1221 | serge | 46 | struct fb_info *framebuffer_alloc(size_t size, void *dev); |
1126 | serge | 47 | |
48 | struct radeon_fb_device { |
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1179 | serge | 49 | struct drm_fb_helper helper; |
50 | struct radeon_framebuffer *rfb; |
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1126 | serge | 51 | struct radeon_device *rdev; |
52 | }; |
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53 | |||
54 | static struct fb_ops radeonfb_ops = { |
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1179 | serge | 55 | // .owner = THIS_MODULE, |
56 | .fb_check_var = drm_fb_helper_check_var, |
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57 | .fb_set_par = drm_fb_helper_set_par, |
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58 | .fb_setcolreg = drm_fb_helper_setcolreg, |
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59 | // .fb_fillrect = cfb_fillrect, |
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60 | // .fb_copyarea = cfb_copyarea, |
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61 | // .fb_imageblit = cfb_imageblit, |
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62 | // .fb_pan_display = drm_fb_helper_pan_display, |
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63 | .fb_blank = drm_fb_helper_blank, |
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1221 | serge | 64 | .fb_setcmap = drm_fb_helper_setcmap, |
1126 | serge | 65 | }; |
66 | |||
67 | /** |
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68 | * Curretly it is assumed that the old framebuffer is reused. |
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69 | * |
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70 | * LOCKING |
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71 | * caller should hold the mode config lock. |
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72 | * |
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73 | */ |
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74 | int radeonfb_resize(struct drm_device *dev, struct drm_crtc *crtc) |
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75 | { |
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76 | struct fb_info *info; |
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77 | struct drm_framebuffer *fb; |
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78 | struct drm_display_mode *mode = crtc->desired_mode; |
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79 | |||
80 | fb = crtc->fb; |
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81 | if (fb == NULL) { |
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82 | return 1; |
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83 | } |
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84 | info = fb->fbdev; |
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85 | if (info == NULL) { |
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86 | return 1; |
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87 | } |
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88 | if (mode == NULL) { |
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89 | return 1; |
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90 | } |
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91 | info->var.xres = mode->hdisplay; |
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92 | info->var.right_margin = mode->hsync_start - mode->hdisplay; |
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93 | info->var.hsync_len = mode->hsync_end - mode->hsync_start; |
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94 | info->var.left_margin = mode->htotal - mode->hsync_end; |
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95 | info->var.yres = mode->vdisplay; |
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96 | info->var.lower_margin = mode->vsync_start - mode->vdisplay; |
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97 | info->var.vsync_len = mode->vsync_end - mode->vsync_start; |
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98 | info->var.upper_margin = mode->vtotal - mode->vsync_end; |
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99 | info->var.pixclock = 10000000 / mode->htotal * 1000 / mode->vtotal * 100; |
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100 | /* avoid overflow */ |
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101 | info->var.pixclock = info->var.pixclock * 1000 / mode->vrefresh; |
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102 | |||
103 | return 0; |
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104 | } |
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105 | EXPORT_SYMBOL(radeonfb_resize); |
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106 | |||
1233 | serge | 107 | int radeon_align_pitch(struct radeon_device *rdev, int width, int bpp, bool tiled) |
1126 | serge | 108 | { |
109 | int aligned = width; |
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1179 | serge | 110 | int align_large = (ASIC_IS_AVIVO(rdev)) || tiled; |
1126 | serge | 111 | int pitch_mask = 0; |
112 | |||
113 | switch (bpp / 8) { |
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114 | case 1: |
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115 | pitch_mask = align_large ? 255 : 127; |
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116 | break; |
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117 | case 2: |
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118 | pitch_mask = align_large ? 127 : 31; |
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119 | break; |
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120 | case 3: |
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121 | case 4: |
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122 | pitch_mask = align_large ? 63 : 15; |
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123 | break; |
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124 | } |
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125 | |||
126 | aligned += pitch_mask; |
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127 | aligned &= ~pitch_mask; |
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128 | return aligned; |
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129 | } |
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130 | |||
1179 | serge | 131 | static struct drm_fb_helper_funcs radeon_fb_helper_funcs = { |
132 | .gamma_set = radeon_crtc_fb_gamma_set, |
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1221 | serge | 133 | .gamma_get = radeon_crtc_fb_gamma_get, |
1179 | serge | 134 | }; |
135 | |||
136 | int radeonfb_create(struct drm_device *dev, |
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1126 | serge | 137 | uint32_t fb_width, uint32_t fb_height, |
138 | uint32_t surface_width, uint32_t surface_height, |
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1221 | serge | 139 | uint32_t surface_depth, uint32_t surface_bpp, |
1179 | serge | 140 | struct drm_framebuffer **fb_p) |
1126 | serge | 141 | { |
1179 | serge | 142 | struct radeon_device *rdev = dev->dev_private; |
1126 | serge | 143 | struct fb_info *info; |
144 | struct radeon_fb_device *rfbdev; |
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145 | struct drm_framebuffer *fb = NULL; |
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146 | struct radeon_framebuffer *rfb; |
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147 | struct drm_mode_fb_cmd mode_cmd; |
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148 | struct drm_gem_object *gobj = NULL; |
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149 | struct radeon_object *robj = NULL; |
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1221 | serge | 150 | void *device = NULL; //&rdev->pdev->dev; |
1126 | serge | 151 | int size, aligned_size, ret; |
152 | u64 fb_gpuaddr; |
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153 | void *fbptr = NULL; |
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154 | unsigned long tmp; |
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1179 | serge | 155 | bool fb_tiled = false; /* useful for testing */ |
156 | u32 tiling_flags = 0; |
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1221 | serge | 157 | int crtc_count; |
1126 | serge | 158 | |
1179 | serge | 159 | mode_cmd.width = surface_width; |
1126 | serge | 160 | mode_cmd.height = surface_height; |
1221 | serge | 161 | |
162 | /* avivo can't scanout real 24bpp */ |
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163 | if ((surface_bpp == 24) && ASIC_IS_AVIVO(rdev)) |
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164 | surface_bpp = 32; |
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165 | |||
1126 | serge | 166 | mode_cmd.bpp = 32; |
167 | /* need to align pitch with crtc limits */ |
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1179 | serge | 168 | mode_cmd.pitch = radeon_align_pitch(rdev, mode_cmd.width, mode_cmd.bpp, fb_tiled) * ((mode_cmd.bpp + 1) / 8); |
1221 | serge | 169 | mode_cmd.depth = surface_depth; |
1126 | serge | 170 | |
171 | size = mode_cmd.pitch * mode_cmd.height; |
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172 | aligned_size = ALIGN(size, PAGE_SIZE); |
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173 | |||
174 | ret = radeon_gem_fb_object_create(rdev, aligned_size, 0, |
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175 | RADEON_GEM_DOMAIN_VRAM, |
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176 | false, 0, |
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177 | false, &gobj); |
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178 | if (ret) { |
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179 | printk(KERN_ERR "failed to allocate framebuffer (%d %d)\n", |
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180 | surface_width, surface_height); |
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181 | ret = -ENOMEM; |
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182 | goto out; |
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183 | } |
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184 | robj = gobj->driver_private; |
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185 | |||
1179 | serge | 186 | mutex_lock(&rdev->ddev->struct_mutex); |
1126 | serge | 187 | fb = radeon_framebuffer_create(rdev->ddev, &mode_cmd, gobj); |
188 | if (fb == NULL) { |
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189 | DRM_ERROR("failed to allocate fb.\n"); |
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190 | ret = -ENOMEM; |
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191 | goto out_unref; |
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192 | } |
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193 | ret = radeon_object_pin(robj, RADEON_GEM_DOMAIN_VRAM, &fb_gpuaddr); |
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194 | if (ret) { |
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195 | printk(KERN_ERR "failed to pin framebuffer\n"); |
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196 | ret = -ENOMEM; |
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197 | goto out_unref; |
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198 | } |
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199 | |||
1179 | serge | 200 | list_add(&fb->filp_head, &rdev->ddev->mode_config.fb_kernel_list); |
1126 | serge | 201 | |
1179 | serge | 202 | *fb_p = fb; |
1126 | serge | 203 | rfb = to_radeon_framebuffer(fb); |
204 | rdev->fbdev_rfb = rfb; |
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205 | rdev->fbdev_robj = robj; |
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206 | |||
1221 | serge | 207 | info = framebuffer_alloc(sizeof(struct radeon_fb_device), device); |
1126 | serge | 208 | if (info == NULL) { |
209 | ret = -ENOMEM; |
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210 | goto out_unref; |
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211 | } |
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1179 | serge | 212 | |
213 | rdev->fbdev_info = info; |
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1126 | serge | 214 | rfbdev = info->par; |
1179 | serge | 215 | rfbdev->helper.funcs = &radeon_fb_helper_funcs; |
216 | rfbdev->helper.dev = dev; |
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1221 | serge | 217 | if (rdev->flags & RADEON_SINGLE_CRTC) |
218 | crtc_count = 1; |
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219 | else |
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220 | crtc_count = 2; |
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221 | ret = drm_fb_helper_init_crtc_count(&rfbdev->helper, crtc_count, |
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1179 | serge | 222 | RADEONFB_CONN_LIMIT); |
223 | if (ret) |
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224 | goto out_unref; |
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1126 | serge | 225 | |
226 | // ret = radeon_object_kmap(robj, &fbptr); |
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227 | // if (ret) { |
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228 | // goto out_unref; |
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229 | // } |
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230 | |||
1179 | serge | 231 | |
1126 | serge | 232 | fbptr = (void*)0xFE000000; // LFB_BASE |
233 | |||
1179 | serge | 234 | strcpy(info->fix.id, "radeondrmfb"); |
1126 | serge | 235 | |
1221 | serge | 236 | drm_fb_helper_fill_fix(info, fb->pitch, fb->depth); |
1179 | serge | 237 | |
238 | info->flags = FBINFO_DEFAULT; |
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239 | info->fbops = &radeonfb_ops; |
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240 | |||
1126 | serge | 241 | tmp = fb_gpuaddr - rdev->mc.vram_location; |
242 | info->fix.smem_start = rdev->mc.aper_base + tmp; |
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243 | info->fix.smem_len = size; |
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244 | info->screen_base = fbptr; |
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245 | info->screen_size = size; |
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1179 | serge | 246 | |
247 | drm_fb_helper_fill_var(info, fb, fb_width, fb_height); |
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248 | |||
249 | /* setup aperture base/size for vesafb takeover */ |
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250 | info->aperture_base = rdev->ddev->mode_config.fb_base; |
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251 | info->aperture_size = rdev->mc.real_vram_size; |
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252 | |||
1126 | serge | 253 | info->fix.mmio_start = 0; |
254 | info->fix.mmio_len = 0; |
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255 | // info->pixmap.size = 64*1024; |
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256 | // info->pixmap.buf_align = 8; |
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257 | // info->pixmap.access_align = 32; |
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258 | // info->pixmap.flags = FB_PIXMAP_SYSTEM; |
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259 | // info->pixmap.scan_align = 1; |
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260 | if (info->screen_base == NULL) { |
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261 | ret = -ENOSPC; |
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262 | goto out_unref; |
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263 | } |
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264 | DRM_INFO("fb mappable at 0x%lX\n", info->fix.smem_start); |
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265 | DRM_INFO("vram apper at 0x%lX\n", (unsigned long)rdev->mc.aper_base); |
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266 | DRM_INFO("size %lu\n", (unsigned long)size); |
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267 | DRM_INFO("fb depth is %d\n", fb->depth); |
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268 | DRM_INFO(" pitch is %d\n", fb->pitch); |
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269 | |||
270 | dbgprintf("fb = %x\n", fb); |
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271 | |||
272 | fb->fbdev = info; |
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273 | rfbdev->rfb = rfb; |
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274 | rfbdev->rdev = rdev; |
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275 | |||
1179 | serge | 276 | mutex_unlock(&rdev->ddev->struct_mutex); |
1126 | serge | 277 | return 0; |
278 | |||
279 | out_unref: |
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280 | if (robj) { |
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281 | // radeon_object_kunmap(robj); |
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282 | } |
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283 | if (fb && ret) { |
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284 | list_del(&fb->filp_head); |
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285 | // drm_gem_object_unreference(gobj); |
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286 | // drm_framebuffer_cleanup(fb); |
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287 | kfree(fb); |
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288 | } |
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289 | // drm_gem_object_unreference(gobj); |
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1179 | serge | 290 | mutex_unlock(&rdev->ddev->struct_mutex); |
1126 | serge | 291 | out: |
292 | return ret; |
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293 | } |
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294 | |||
295 | int radeonfb_probe(struct drm_device *dev) |
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296 | { |
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1221 | serge | 297 | return drm_fb_helper_single_fb_probe(dev, 32, &radeonfb_create); |
1126 | serge | 298 | } |
299 | |||
300 | int radeonfb_remove(struct drm_device *dev, struct drm_framebuffer *fb) |
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301 | { |
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302 | struct fb_info *info; |
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303 | struct radeon_framebuffer *rfb = to_radeon_framebuffer(fb); |
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304 | struct radeon_object *robj; |
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305 | |||
306 | if (!fb) { |
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307 | return -EINVAL; |
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308 | } |
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309 | info = fb->fbdev; |
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310 | if (info) { |
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1179 | serge | 311 | struct radeon_fb_device *rfbdev = info->par; |
1126 | serge | 312 | robj = rfb->obj->driver_private; |
313 | // unregister_framebuffer(info); |
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314 | // radeon_object_kunmap(robj); |
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315 | // radeon_object_unpin(robj); |
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316 | // framebuffer_release(info); |
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317 | } |
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318 | |||
319 | printk(KERN_INFO "unregistered panic notifier\n"); |
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1179 | serge | 320 | |
1126 | serge | 321 | return 0; |
322 | } |
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323 | EXPORT_SYMBOL(radeonfb_remove); |
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324 | |||
325 | |||
326 | /** |
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327 | * Allocate a GEM object of the specified size with shmfs backing store |
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328 | */ |
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329 | struct drm_gem_object * |
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330 | drm_gem_object_alloc(struct drm_device *dev, size_t size) |
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331 | { |
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332 | struct drm_gem_object *obj; |
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333 | |||
334 | BUG_ON((size & (PAGE_SIZE - 1)) != 0); |
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335 | |||
336 | obj = kzalloc(sizeof(*obj), GFP_KERNEL); |
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337 | |||
338 | obj->dev = dev; |
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339 | // obj->filp = shmem_file_setup("drm mm object", size, VM_NORESERVE); |
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340 | // if (IS_ERR(obj->filp)) { |
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341 | // kfree(obj); |
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342 | // return NULL; |
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343 | // } |
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344 | |||
345 | // kref_init(&obj->refcount); |
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346 | // kref_init(&obj->handlecount); |
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347 | obj->size = size; |
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348 | |||
349 | // if (dev->driver->gem_init_object != NULL && |
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350 | // dev->driver->gem_init_object(obj) != 0) { |
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351 | // fput(obj->filp); |
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352 | // kfree(obj); |
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353 | // return NULL; |
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354 | // } |
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355 | // atomic_inc(&dev->object_count); |
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356 | // atomic_add(obj->size, &dev->object_memory); |
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357 | return obj; |
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358 | } |
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359 | |||
360 | |||
361 | int radeon_gem_fb_object_create(struct radeon_device *rdev, int size, |
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362 | int alignment, int initial_domain, |
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363 | bool discardable, bool kernel, |
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364 | bool interruptible, |
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365 | struct drm_gem_object **obj) |
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366 | { |
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367 | struct drm_gem_object *gobj; |
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368 | struct radeon_object *robj; |
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369 | |||
370 | *obj = NULL; |
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371 | gobj = drm_gem_object_alloc(rdev->ddev, size); |
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372 | if (!gobj) { |
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373 | return -ENOMEM; |
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374 | } |
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375 | /* At least align on page size */ |
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376 | if (alignment < PAGE_SIZE) { |
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377 | alignment = PAGE_SIZE; |
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378 | } |
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379 | |||
380 | robj = kzalloc(sizeof(struct radeon_object), GFP_KERNEL); |
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381 | if (!robj) { |
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382 | DRM_ERROR("Failed to allocate GEM object (%d, %d, %u)\n", |
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383 | size, initial_domain, alignment); |
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384 | // mutex_lock(&rdev->ddev->struct_mutex); |
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385 | // drm_gem_object_unreference(gobj); |
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386 | // mutex_unlock(&rdev->ddev->struct_mutex); |
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387 | return -ENOMEM;; |
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388 | } |
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389 | robj->rdev = rdev; |
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390 | robj->gobj = gobj; |
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391 | INIT_LIST_HEAD(&robj->list); |
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392 | |||
393 | robj->flags = TTM_PL_FLAG_VRAM; |
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394 | |||
395 | struct drm_mm_node *vm_node; |
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396 | |||
397 | vm_node = kzalloc(sizeof(*vm_node),0); |
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398 | |||
399 | vm_node->free = 0; |
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1313 | serge | 400 | vm_node->size = 0xC00000 >> 12; |
1126 | serge | 401 | vm_node->start = 0; |
402 | vm_node->mm = NULL; |
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403 | |||
404 | robj->mm_node = vm_node; |
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405 | |||
406 | robj->vm_addr = ((uint32_t)robj->mm_node->start); |
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407 | |||
408 | gobj->driver_private = robj; |
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409 | *obj = gobj; |
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410 | return 0; |
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411 | } |
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412 | |||
413 | |||
1221 | serge | 414 | struct fb_info *framebuffer_alloc(size_t size, void *dev) |
1126 | serge | 415 | { |
416 | #define BYTES_PER_LONG (BITS_PER_LONG/8) |
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417 | #define PADDING (BYTES_PER_LONG - (sizeof(struct fb_info) % BYTES_PER_LONG)) |
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418 | int fb_info_size = sizeof(struct fb_info); |
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419 | struct fb_info *info; |
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420 | char *p; |
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421 | |||
422 | if (size) |
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423 | fb_info_size += PADDING; |
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424 | |||
425 | p = kzalloc(fb_info_size + size, GFP_KERNEL); |
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426 | |||
427 | if (!p) |
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428 | return NULL; |
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429 | |||
430 | info = (struct fb_info *) p; |
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431 | |||
432 | if (size) |
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433 | info->par = p + fb_info_size; |
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434 | |||
435 | return info; |
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436 | #undef PADDING |
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437 | #undef BYTES_PER_LONG |
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438 | }> |
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439 |