File: | dev/pci/drm/i915/display/intel_fbdev.c |
Warning: | line 204, column 20 Value stored to 'ggtt' during its initialization is never read |
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1 | /* |
2 | * Copyright © 2007 David Airlie |
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 (including the next |
12 | * paragraph) shall be included in all copies or substantial portions of the |
13 | * Software. |
14 | * |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
21 | * DEALINGS IN THE SOFTWARE. |
22 | * |
23 | * Authors: |
24 | * David Airlie |
25 | */ |
26 | |
27 | #include <linux/async.h> |
28 | #include <linux/console.h> |
29 | #include <linux/delay.h> |
30 | #include <linux/errno.h> |
31 | #include <linux/init.h> |
32 | #include <linux/kernel.h> |
33 | #include <linux/mm.h> |
34 | #include <linux/module.h> |
35 | #include <linux/string.h> |
36 | #include <linux/sysrq.h> |
37 | #include <linux/tty.h> |
38 | #include <linux/vga_switcheroo.h> |
39 | |
40 | #include <drm/drm_crtc.h> |
41 | #include <drm/drm_fb_helper.h> |
42 | #include <drm/drm_fourcc.h> |
43 | |
44 | #include "gem/i915_gem_lmem.h" |
45 | |
46 | #include "i915_drv.h" |
47 | #include "intel_display_types.h" |
48 | #include "intel_fb.h" |
49 | #include "intel_fb_pin.h" |
50 | #include "intel_fbdev.h" |
51 | #include "intel_frontbuffer.h" |
52 | |
53 | struct intel_fbdev { |
54 | struct drm_fb_helper helper; |
55 | struct intel_framebuffer *fb; |
56 | struct i915_vma *vma; |
57 | unsigned long vma_flags; |
58 | async_cookie_t cookie; |
59 | int preferred_bpp; |
60 | |
61 | /* Whether or not fbdev hpd processing is temporarily suspended */ |
62 | bool_Bool hpd_suspended: 1; |
63 | /* Set when a hotplug was received while HPD processing was suspended */ |
64 | bool_Bool hpd_waiting: 1; |
65 | |
66 | /* Protects hpd_suspended */ |
67 | struct rwlock hpd_lock; |
68 | }; |
69 | |
70 | static struct intel_frontbuffer *to_frontbuffer(struct intel_fbdev *ifbdev) |
71 | { |
72 | return ifbdev->fb->frontbuffer; |
73 | } |
74 | |
75 | static void intel_fbdev_invalidate(struct intel_fbdev *ifbdev) |
76 | { |
77 | intel_frontbuffer_invalidate(to_frontbuffer(ifbdev), ORIGIN_CPU); |
78 | } |
79 | |
80 | static int intel_fbdev_set_par(struct fb_info *info) |
81 | { |
82 | struct drm_fb_helper *fb_helper = info->par; |
83 | struct intel_fbdev *ifbdev = |
84 | container_of(fb_helper, struct intel_fbdev, helper)({ const __typeof( ((struct intel_fbdev *)0)->helper ) *__mptr = (fb_helper); (struct intel_fbdev *)( (char *)__mptr - __builtin_offsetof (struct intel_fbdev, helper) );}); |
85 | int ret; |
86 | |
87 | ret = drm_fb_helper_set_par(info); |
88 | if (ret == 0) |
89 | intel_fbdev_invalidate(ifbdev); |
90 | |
91 | return ret; |
92 | } |
93 | |
94 | static int intel_fbdev_blank(int blank, struct fb_info *info) |
95 | { |
96 | struct drm_fb_helper *fb_helper = info->par; |
97 | struct intel_fbdev *ifbdev = |
98 | container_of(fb_helper, struct intel_fbdev, helper)({ const __typeof( ((struct intel_fbdev *)0)->helper ) *__mptr = (fb_helper); (struct intel_fbdev *)( (char *)__mptr - __builtin_offsetof (struct intel_fbdev, helper) );}); |
99 | int ret; |
100 | |
101 | ret = drm_fb_helper_blank(blank, info); |
102 | if (ret == 0) |
103 | intel_fbdev_invalidate(ifbdev); |
104 | |
105 | return ret; |
106 | } |
107 | |
108 | static int intel_fbdev_pan_display(struct fb_var_screeninfo *var, |
109 | struct fb_info *info) |
110 | { |
111 | struct drm_fb_helper *fb_helper = info->par; |
112 | struct intel_fbdev *ifbdev = |
113 | container_of(fb_helper, struct intel_fbdev, helper)({ const __typeof( ((struct intel_fbdev *)0)->helper ) *__mptr = (fb_helper); (struct intel_fbdev *)( (char *)__mptr - __builtin_offsetof (struct intel_fbdev, helper) );}); |
114 | int ret; |
115 | |
116 | ret = drm_fb_helper_pan_display(var, info); |
117 | if (ret == 0) |
118 | intel_fbdev_invalidate(ifbdev); |
119 | |
120 | return ret; |
121 | } |
122 | |
123 | static const struct fb_ops intelfb_ops = { |
124 | #ifdef notyet |
125 | .owner = THIS_MODULE((void *)0), |
126 | DRM_FB_HELPER_DEFAULT_OPS.fb_set_par = drm_fb_helper_set_par, |
127 | #endif |
128 | .fb_set_par = intel_fbdev_set_par, |
129 | #ifdef notyet |
130 | .fb_fillrect = drm_fb_helper_cfb_fillrect, |
131 | .fb_copyarea = drm_fb_helper_cfb_copyarea, |
132 | .fb_imageblit = drm_fb_helper_cfb_imageblit, |
133 | .fb_pan_display = intel_fbdev_pan_display, |
134 | .fb_blank = intel_fbdev_blank, |
135 | #endif |
136 | }; |
137 | |
138 | static int intelfb_alloc(struct drm_fb_helper *helper, |
139 | struct drm_fb_helper_surface_size *sizes) |
140 | { |
141 | struct intel_fbdev *ifbdev = |
142 | container_of(helper, struct intel_fbdev, helper)({ const __typeof( ((struct intel_fbdev *)0)->helper ) *__mptr = (helper); (struct intel_fbdev *)( (char *)__mptr - __builtin_offsetof (struct intel_fbdev, helper) );}); |
143 | struct drm_framebuffer *fb; |
144 | struct drm_device *dev = helper->dev; |
145 | struct drm_i915_privateinteldrm_softc *dev_priv = to_i915(dev); |
146 | struct drm_mode_fb_cmd2 mode_cmd = {}; |
147 | struct drm_i915_gem_object *obj; |
148 | int size; |
149 | |
150 | /* we don't do packed 24bpp */ |
151 | if (sizes->surface_bpp == 24) |
152 | sizes->surface_bpp = 32; |
153 | |
154 | mode_cmd.width = sizes->surface_width; |
155 | mode_cmd.height = sizes->surface_height; |
156 | |
157 | mode_cmd.pitches[0] = roundup2(mode_cmd.width *(((mode_cmd.width * (((sizes->surface_bpp) + ((8) - 1)) / ( 8))) + ((64) - 1)) & (~((__typeof(mode_cmd.width * (((sizes ->surface_bpp) + ((8) - 1)) / (8))))(64) - 1))) |
158 | DIV_ROUND_UP(sizes->surface_bpp, 8), 64)(((mode_cmd.width * (((sizes->surface_bpp) + ((8) - 1)) / ( 8))) + ((64) - 1)) & (~((__typeof(mode_cmd.width * (((sizes ->surface_bpp) + ((8) - 1)) / (8))))(64) - 1))); |
159 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, |
160 | sizes->surface_depth); |
161 | |
162 | size = mode_cmd.pitches[0] * mode_cmd.height; |
163 | size = PAGE_ALIGN(size)(((size) + ((1 << 12) - 1)) & ~((1 << 12) - 1 )); |
164 | |
165 | obj = ERR_PTR(-ENODEV19); |
166 | if (HAS_LMEM(dev_priv)((&(dev_priv)->__runtime)->memory_regions & ((1UL << (INTEL_REGION_LMEM_0))))) { |
167 | obj = i915_gem_object_create_lmem(dev_priv, size, |
168 | I915_BO_ALLOC_CONTIGUOUS(1UL << (0))); |
169 | } else { |
170 | /* |
171 | * If the FB is too big, just don't use it since fbdev is not very |
172 | * important and we should probably use that space with FBC or other |
173 | * features. |
174 | */ |
175 | if (size * 2 < dev_priv->stolen_usable_size) |
176 | obj = i915_gem_object_create_stolen(dev_priv, size); |
177 | if (IS_ERR(obj)) |
178 | obj = i915_gem_object_create_shmem(dev_priv, size); |
179 | } |
180 | |
181 | if (IS_ERR(obj)) { |
182 | drm_err(&dev_priv->drm, "failed to allocate framebuffer (%pe)\n", obj)printf("drm:pid%d:%s *ERROR* " "[drm] " "*ERROR* " "failed to allocate framebuffer (%pe)\n" , ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc->p_p->ps_pid, __func__ , obj); |
183 | return PTR_ERR(obj); |
184 | } |
185 | |
186 | fb = intel_framebuffer_create(obj, &mode_cmd); |
187 | i915_gem_object_put(obj); |
188 | if (IS_ERR(fb)) |
189 | return PTR_ERR(fb); |
190 | |
191 | ifbdev->fb = to_intel_framebuffer(fb)({ const __typeof( ((struct intel_framebuffer *)0)->base ) *__mptr = (fb); (struct intel_framebuffer *)( (char *)__mptr - __builtin_offsetof(struct intel_framebuffer, base) );}); |
192 | return 0; |
193 | } |
194 | |
195 | static int intelfb_create(struct drm_fb_helper *helper, |
196 | struct drm_fb_helper_surface_size *sizes) |
197 | { |
198 | struct intel_fbdev *ifbdev = |
199 | container_of(helper, struct intel_fbdev, helper)({ const __typeof( ((struct intel_fbdev *)0)->helper ) *__mptr = (helper); (struct intel_fbdev *)( (char *)__mptr - __builtin_offsetof (struct intel_fbdev, helper) );}); |
200 | struct intel_framebuffer *intel_fb = ifbdev->fb; |
201 | struct drm_device *dev = helper->dev; |
202 | struct drm_i915_privateinteldrm_softc *dev_priv = to_i915(dev); |
203 | struct pci_dev *pdev = dev_priv->drm.pdev; |
204 | struct i915_ggtt *ggtt = to_gt(dev_priv)->ggtt; |
Value stored to 'ggtt' during its initialization is never read | |
205 | const struct i915_gtt_view view = { |
206 | .type = I915_GTT_VIEW_NORMAL, |
207 | }; |
208 | intel_wakeref_t wakeref; |
209 | struct fb_info *info; |
210 | struct i915_vma *vma; |
211 | unsigned long flags = 0; |
212 | bool_Bool prealloc = false0; |
213 | void __iomem *vaddr; |
214 | struct drm_i915_gem_object *obj; |
215 | struct i915_gem_ww_ctx ww; |
216 | int ret; |
217 | |
218 | mutex_lock(&ifbdev->hpd_lock)rw_enter_write(&ifbdev->hpd_lock); |
219 | ret = ifbdev->hpd_suspended ? -EAGAIN35 : 0; |
220 | mutex_unlock(&ifbdev->hpd_lock)rw_exit_write(&ifbdev->hpd_lock); |
221 | if (ret) |
222 | return ret; |
223 | |
224 | if (intel_fb && |
225 | (sizes->fb_width > intel_fb->base.width || |
226 | sizes->fb_height > intel_fb->base.height)) { |
227 | drm_dbg_kms(&dev_priv->drm,__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "BIOS fb too small (%dx%d), we require (%dx%d)," " releasing it\n", intel_fb->base.width, intel_fb->base .height, sizes->fb_width, sizes->fb_height) |
228 | "BIOS fb too small (%dx%d), we require (%dx%d),"__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "BIOS fb too small (%dx%d), we require (%dx%d)," " releasing it\n", intel_fb->base.width, intel_fb->base .height, sizes->fb_width, sizes->fb_height) |
229 | " releasing it\n",__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "BIOS fb too small (%dx%d), we require (%dx%d)," " releasing it\n", intel_fb->base.width, intel_fb->base .height, sizes->fb_width, sizes->fb_height) |
230 | intel_fb->base.width, intel_fb->base.height,__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "BIOS fb too small (%dx%d), we require (%dx%d)," " releasing it\n", intel_fb->base.width, intel_fb->base .height, sizes->fb_width, sizes->fb_height) |
231 | sizes->fb_width, sizes->fb_height)__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "BIOS fb too small (%dx%d), we require (%dx%d)," " releasing it\n", intel_fb->base.width, intel_fb->base .height, sizes->fb_width, sizes->fb_height); |
232 | drm_framebuffer_put(&intel_fb->base); |
233 | intel_fb = ifbdev->fb = NULL((void *)0); |
234 | } |
235 | if (!intel_fb || drm_WARN_ON(dev, !intel_fb_obj(&intel_fb->base))({ int __ret = !!((!((&intel_fb->base) ? to_intel_bo(( &intel_fb->base)->obj[0]) : ((void *)0)))); if (__ret ) printf("%s %s: " "%s", dev_driver_string(((dev))->dev), "" , "drm_WARN_ON(" "!((&intel_fb->base) ? to_intel_bo((&intel_fb->base)->obj[0]) : ((void *)0))" ")"); __builtin_expect(!!(__ret), 0); })) { |
236 | drm_dbg_kms(&dev_priv->drm,__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "no BIOS fb, allocating a new one\n" ) |
237 | "no BIOS fb, allocating a new one\n")__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "no BIOS fb, allocating a new one\n" ); |
238 | ret = intelfb_alloc(helper, sizes); |
239 | if (ret) |
240 | return ret; |
241 | intel_fb = ifbdev->fb; |
242 | } else { |
243 | drm_dbg_kms(&dev_priv->drm, "re-using BIOS fb\n")__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "re-using BIOS fb\n" ); |
244 | prealloc = true1; |
245 | sizes->fb_width = intel_fb->base.width; |
246 | sizes->fb_height = intel_fb->base.height; |
247 | } |
248 | |
249 | wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm); |
250 | |
251 | /* Pin the GGTT vma for our access via info->screen_base. |
252 | * This also validates that any existing fb inherited from the |
253 | * BIOS is suitable for own access. |
254 | */ |
255 | vma = intel_pin_and_fence_fb_obj(&ifbdev->fb->base, false0, |
256 | &view, false0, &flags); |
257 | if (IS_ERR(vma)) { |
258 | ret = PTR_ERR(vma); |
259 | goto out_unlock; |
260 | } |
261 | |
262 | info = drm_fb_helper_alloc_fbi(helper); |
263 | if (IS_ERR(info)) { |
264 | drm_err(&dev_priv->drm, "Failed to allocate fb_info (%pe)\n", info)printf("drm:pid%d:%s *ERROR* " "[drm] " "*ERROR* " "Failed to allocate fb_info (%pe)\n" , ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc->p_p->ps_pid, __func__ , info); |
265 | ret = PTR_ERR(info); |
266 | goto out_unpin; |
267 | } |
268 | |
269 | ifbdev->helper.fb = &ifbdev->fb->base; |
270 | |
271 | info->fbops = &intelfb_ops; |
272 | |
273 | #ifdef __linux__ |
274 | /* setup aperture base/size for vesafb takeover */ |
275 | obj = intel_fb_obj(&intel_fb->base)((&intel_fb->base) ? to_intel_bo((&intel_fb->base )->obj[0]) : ((void *)0)); |
276 | if (i915_gem_object_is_lmem(obj)) { |
277 | struct intel_memory_region *mem = obj->mm.region; |
278 | |
279 | info->apertures->ranges[0].base = mem->io_start; |
280 | info->apertures->ranges[0].size = mem->io_size; |
281 | |
282 | /* Use fbdev's framebuffer from lmem for discrete */ |
283 | info->fix.smem_start = |
284 | (unsigned long)(mem->io_start + |
285 | i915_gem_object_get_dma_address(obj, 0)); |
286 | info->fix.smem_len = obj->base.size; |
287 | } else { |
288 | info->apertures->ranges[0].base = ggtt->gmadr.start; |
289 | info->apertures->ranges[0].size = ggtt->mappable_end; |
290 | |
291 | /* Our framebuffer is the entirety of fbdev's system memory */ |
292 | info->fix.smem_start = |
293 | (unsigned long)(ggtt->gmadr.start + vma->node.start); |
294 | info->fix.smem_len = vma->size; |
295 | } |
296 | |
297 | for_i915_gem_ww(&ww, ret, false)for (i915_gem_ww_ctx_init(&ww, 0), (ret) = -11; (ret) == - 11; (ret) = __i915_gem_ww_fini(&ww, ret)) { |
298 | ret = i915_gem_object_lock(vma->obj, &ww); |
299 | |
300 | if (ret) |
301 | continue; |
302 | |
303 | vaddr = i915_vma_pin_iomap(vma); |
304 | if (IS_ERR(vaddr)) { |
305 | drm_err(&dev_priv->drm,printf("drm:pid%d:%s *ERROR* " "[drm] " "*ERROR* " "Failed to remap framebuffer into virtual memory (%pe)\n" , ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc->p_p->ps_pid, __func__ , vaddr) |
306 | "Failed to remap framebuffer into virtual memory (%pe)\n", vaddr)printf("drm:pid%d:%s *ERROR* " "[drm] " "*ERROR* " "Failed to remap framebuffer into virtual memory (%pe)\n" , ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc->p_p->ps_pid, __func__ , vaddr); |
307 | ret = PTR_ERR(vaddr); |
308 | continue; |
309 | } |
310 | } |
311 | |
312 | if (ret) |
313 | goto out_unpin; |
314 | |
315 | info->screen_base = vaddr; |
316 | info->screen_size = vma->size; |
317 | |
318 | drm_fb_helper_fill_info(info, &ifbdev->helper, sizes); |
319 | |
320 | /* If the object is shmemfs backed, it will have given us zeroed pages. |
321 | * If the object is stolen however, it will be full of whatever |
322 | * garbage was left in there. |
323 | */ |
324 | if (!i915_gem_object_is_shmem(vma->obj) && !prealloc) |
325 | memset_io(info->screen_base, 0, info->screen_size)__builtin_memset((info->screen_base), (0), (info->screen_size )); |
326 | |
327 | /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ |
328 | #else |
329 | { |
330 | struct drm_framebuffer *fb = ifbdev->helper.fb; |
331 | struct rasops_info *ri = &dev_priv->ro; |
332 | bus_space_handle_t bsh; |
333 | int err; |
334 | |
335 | vaddr = i915_vma_pin_iomap(vma); |
336 | if (IS_ERR(vaddr)) { |
337 | DRM_ERROR("Failed to remap framebuffer into virtual memory\n")__drm_err("Failed to remap framebuffer into virtual memory\n" ); |
338 | ret = PTR_ERR(vaddr); |
339 | goto out_unpin; |
340 | } |
341 | |
342 | drm_fb_helper_fill_info(info, &ifbdev->helper, sizes); |
343 | |
344 | ri->ri_bits = vaddr; |
345 | ri->ri_depth = fb->format->cpp[0] * 8; |
346 | ri->ri_stride = fb->pitches[0]; |
347 | ri->ri_width = sizes->fb_width; |
348 | ri->ri_height = sizes->fb_height; |
349 | |
350 | switch (fb->format->format) { |
351 | case DRM_FORMAT_XRGB8888((__u32)('X') | ((__u32)('R') << 8) | ((__u32)('2') << 16) | ((__u32)('4') << 24)): |
352 | ri->ri_rnum = 8; |
353 | ri->ri_rpos = 16; |
354 | ri->ri_gnum = 8; |
355 | ri->ri_gpos = 8; |
356 | ri->ri_bnum = 8; |
357 | ri->ri_bpos = 0; |
358 | break; |
359 | case DRM_FORMAT_RGB565((__u32)('R') | ((__u32)('G') << 8) | ((__u32)('1') << 16) | ((__u32)('6') << 24)): |
360 | ri->ri_rnum = 5; |
361 | ri->ri_rpos = 11; |
362 | ri->ri_gnum = 6; |
363 | ri->ri_gpos = 5; |
364 | ri->ri_bnum = 5; |
365 | ri->ri_bpos = 0; |
366 | break; |
367 | } |
368 | |
369 | if (vma->obj->stolen && !prealloc) |
370 | memset(ri->ri_bits, 0, vma->node.size)__builtin_memset((ri->ri_bits), (0), (vma->node.size)); |
371 | } |
372 | #endif |
373 | |
374 | drm_dbg_kms(&dev_priv->drm, "allocated %dx%d fb: 0x%08x\n",__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "allocated %dx%d fb: 0x%08x\n" , ifbdev->fb->base.width, ifbdev->fb->base.height , i915_ggtt_offset(vma)) |
375 | ifbdev->fb->base.width, ifbdev->fb->base.height,__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "allocated %dx%d fb: 0x%08x\n" , ifbdev->fb->base.width, ifbdev->fb->base.height , i915_ggtt_offset(vma)) |
376 | i915_ggtt_offset(vma))__drm_dev_dbg(((void *)0), (&dev_priv->drm) ? (&dev_priv ->drm)->dev : ((void *)0), DRM_UT_KMS, "allocated %dx%d fb: 0x%08x\n" , ifbdev->fb->base.width, ifbdev->fb->base.height , i915_ggtt_offset(vma)); |
377 | ifbdev->vma = vma; |
378 | ifbdev->vma_flags = flags; |
379 | |
380 | intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref); |
381 | vga_switcheroo_client_fb_set(pdev, info); |
382 | return 0; |
383 | |
384 | out_unpin: |
385 | intel_unpin_fb_vma(vma, flags); |
386 | out_unlock: |
387 | intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref); |
388 | return ret; |
389 | } |
390 | |
391 | static const struct drm_fb_helper_funcs intel_fb_helper_funcs = { |
392 | .fb_probe = intelfb_create, |
393 | }; |
394 | |
395 | static void intel_fbdev_destroy(struct intel_fbdev *ifbdev) |
396 | { |
397 | /* We rely on the object-free to release the VMA pinning for |
398 | * the info->screen_base mmaping. Leaking the VMA is simpler than |
399 | * trying to rectify all the possible error paths leading here. |
400 | */ |
401 | |
402 | drm_fb_helper_fini(&ifbdev->helper); |
403 | |
404 | if (ifbdev->vma) |
405 | intel_unpin_fb_vma(ifbdev->vma, ifbdev->vma_flags); |
406 | |
407 | if (ifbdev->fb) |
408 | drm_framebuffer_remove(&ifbdev->fb->base); |
409 | |
410 | kfree(ifbdev); |
411 | } |
412 | |
413 | /* |
414 | * Build an intel_fbdev struct using a BIOS allocated framebuffer, if possible. |
415 | * The core display code will have read out the current plane configuration, |
416 | * so we use that to figure out if there's an object for us to use as the |
417 | * fb, and if so, we re-use it for the fbdev configuration. |
418 | * |
419 | * Note we only support a single fb shared across pipes for boot (mostly for |
420 | * fbcon), so we just find the biggest and use that. |
421 | */ |
422 | static bool_Bool intel_fbdev_init_bios(struct drm_device *dev, |
423 | struct intel_fbdev *ifbdev) |
424 | { |
425 | struct drm_i915_privateinteldrm_softc *i915 = to_i915(dev); |
426 | struct intel_framebuffer *fb = NULL((void *)0); |
427 | struct intel_crtc *crtc; |
428 | unsigned int max_size = 0; |
429 | |
430 | /* Find the largest fb */ |
431 | for_each_intel_crtc(dev, crtc)for (crtc = ({ const __typeof( ((__typeof(*crtc) *)0)->base .head ) *__mptr = ((&(dev)->mode_config.crtc_list)-> next); (__typeof(*crtc) *)( (char *)__mptr - __builtin_offsetof (__typeof(*crtc), base.head) );}); &crtc->base.head != (&(dev)->mode_config.crtc_list); crtc = ({ const __typeof ( ((__typeof(*crtc) *)0)->base.head ) *__mptr = (crtc-> base.head.next); (__typeof(*crtc) *)( (char *)__mptr - __builtin_offsetof (__typeof(*crtc), base.head) );})) { |
432 | struct intel_crtc_state *crtc_state = |
433 | to_intel_crtc_state(crtc->base.state)({ const __typeof( ((struct intel_crtc_state *)0)->uapi ) * __mptr = (crtc->base.state); (struct intel_crtc_state *)( ( char *)__mptr - __builtin_offsetof(struct intel_crtc_state, uapi ) );}); |
434 | struct intel_plane *plane = |
435 | to_intel_plane(crtc->base.primary)({ const __typeof( ((struct intel_plane *)0)->base ) *__mptr = (crtc->base.primary); (struct intel_plane *)( (char *)__mptr - __builtin_offsetof(struct intel_plane, base) );}); |
436 | struct intel_plane_state *plane_state = |
437 | to_intel_plane_state(plane->base.state)({ const __typeof( ((struct intel_plane_state *)0)->uapi ) *__mptr = (plane->base.state); (struct intel_plane_state * )( (char *)__mptr - __builtin_offsetof(struct intel_plane_state , uapi) );}); |
438 | struct drm_i915_gem_object *obj = |
439 | intel_fb_obj(plane_state->uapi.fb)((plane_state->uapi.fb) ? to_intel_bo((plane_state->uapi .fb)->obj[0]) : ((void *)0)); |
440 | |
441 | if (!crtc_state->uapi.active) { |
442 | drm_dbg_kms(&i915->drm,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[CRTC:%d:%s] not active, skipping\n" , crtc->base.base.id, crtc->base.name) |
443 | "[CRTC:%d:%s] not active, skipping\n",__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[CRTC:%d:%s] not active, skipping\n" , crtc->base.base.id, crtc->base.name) |
444 | crtc->base.base.id, crtc->base.name)__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[CRTC:%d:%s] not active, skipping\n" , crtc->base.base.id, crtc->base.name); |
445 | continue; |
446 | } |
447 | |
448 | if (!obj) { |
449 | drm_dbg_kms(&i915->drm,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[PLANE:%d:%s] no fb, skipping\n" , plane->base.base.id, plane->base.name) |
450 | "[PLANE:%d:%s] no fb, skipping\n",__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[PLANE:%d:%s] no fb, skipping\n" , plane->base.base.id, plane->base.name) |
451 | plane->base.base.id, plane->base.name)__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[PLANE:%d:%s] no fb, skipping\n" , plane->base.base.id, plane->base.name); |
452 | continue; |
453 | } |
454 | |
455 | if (obj->base.size > max_size) { |
456 | drm_dbg_kms(&i915->drm,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "found possible fb from [PLANE:%d:%s]\n" , plane->base.base.id, plane->base.name) |
457 | "found possible fb from [PLANE:%d:%s]\n",__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "found possible fb from [PLANE:%d:%s]\n" , plane->base.base.id, plane->base.name) |
458 | plane->base.base.id, plane->base.name)__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "found possible fb from [PLANE:%d:%s]\n" , plane->base.base.id, plane->base.name); |
459 | fb = to_intel_framebuffer(plane_state->uapi.fb)({ const __typeof( ((struct intel_framebuffer *)0)->base ) *__mptr = (plane_state->uapi.fb); (struct intel_framebuffer *)( (char *)__mptr - __builtin_offsetof(struct intel_framebuffer , base) );}); |
460 | max_size = obj->base.size; |
461 | } |
462 | } |
463 | |
464 | if (!fb) { |
465 | drm_dbg_kms(&i915->drm,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "no active fbs found, not using BIOS config\n" ) |
466 | "no active fbs found, not using BIOS config\n")__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "no active fbs found, not using BIOS config\n" ); |
467 | goto out; |
468 | } |
469 | |
470 | /* Now make sure all the pipes will fit into it */ |
471 | for_each_intel_crtc(dev, crtc)for (crtc = ({ const __typeof( ((__typeof(*crtc) *)0)->base .head ) *__mptr = ((&(dev)->mode_config.crtc_list)-> next); (__typeof(*crtc) *)( (char *)__mptr - __builtin_offsetof (__typeof(*crtc), base.head) );}); &crtc->base.head != (&(dev)->mode_config.crtc_list); crtc = ({ const __typeof ( ((__typeof(*crtc) *)0)->base.head ) *__mptr = (crtc-> base.head.next); (__typeof(*crtc) *)( (char *)__mptr - __builtin_offsetof (__typeof(*crtc), base.head) );})) { |
472 | struct intel_crtc_state *crtc_state = |
473 | to_intel_crtc_state(crtc->base.state)({ const __typeof( ((struct intel_crtc_state *)0)->uapi ) * __mptr = (crtc->base.state); (struct intel_crtc_state *)( ( char *)__mptr - __builtin_offsetof(struct intel_crtc_state, uapi ) );}); |
474 | struct intel_plane *plane = |
475 | to_intel_plane(crtc->base.primary)({ const __typeof( ((struct intel_plane *)0)->base ) *__mptr = (crtc->base.primary); (struct intel_plane *)( (char *)__mptr - __builtin_offsetof(struct intel_plane, base) );}); |
476 | unsigned int cur_size; |
477 | |
478 | if (!crtc_state->uapi.active) { |
479 | drm_dbg_kms(&i915->drm,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[CRTC:%d:%s] not active, skipping\n" , crtc->base.base.id, crtc->base.name) |
480 | "[CRTC:%d:%s] not active, skipping\n",__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[CRTC:%d:%s] not active, skipping\n" , crtc->base.base.id, crtc->base.name) |
481 | crtc->base.base.id, crtc->base.name)__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[CRTC:%d:%s] not active, skipping\n" , crtc->base.base.id, crtc->base.name); |
482 | continue; |
483 | } |
484 | |
485 | drm_dbg_kms(&i915->drm, "checking [PLANE:%d:%s] for BIOS fb\n",__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "checking [PLANE:%d:%s] for BIOS fb\n" , plane->base.base.id, plane->base.name) |
486 | plane->base.base.id, plane->base.name)__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "checking [PLANE:%d:%s] for BIOS fb\n" , plane->base.base.id, plane->base.name); |
487 | |
488 | /* |
489 | * See if the plane fb we found above will fit on this |
490 | * pipe. Note we need to use the selected fb's pitch and bpp |
491 | * rather than the current pipe's, since they differ. |
492 | */ |
493 | cur_size = crtc_state->uapi.adjusted_mode.crtc_hdisplay; |
494 | cur_size = cur_size * fb->base.format->cpp[0]; |
495 | if (fb->base.pitches[0] < cur_size) { |
496 | drm_dbg_kms(&i915->drm,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "fb not wide enough for [PLANE:%d:%s] (%d vs %d)\n" , plane->base.base.id, plane->base.name, cur_size, fb-> base.pitches[0]) |
497 | "fb not wide enough for [PLANE:%d:%s] (%d vs %d)\n",__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "fb not wide enough for [PLANE:%d:%s] (%d vs %d)\n" , plane->base.base.id, plane->base.name, cur_size, fb-> base.pitches[0]) |
498 | plane->base.base.id, plane->base.name,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "fb not wide enough for [PLANE:%d:%s] (%d vs %d)\n" , plane->base.base.id, plane->base.name, cur_size, fb-> base.pitches[0]) |
499 | cur_size, fb->base.pitches[0])__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "fb not wide enough for [PLANE:%d:%s] (%d vs %d)\n" , plane->base.base.id, plane->base.name, cur_size, fb-> base.pitches[0]); |
500 | fb = NULL((void *)0); |
501 | break; |
502 | } |
503 | |
504 | cur_size = crtc_state->uapi.adjusted_mode.crtc_vdisplay; |
505 | cur_size = intel_fb_align_height(&fb->base, 0, cur_size); |
506 | cur_size *= fb->base.pitches[0]; |
507 | drm_dbg_kms(&i915->drm,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[CRTC:%d:%s] area: %dx%d, bpp: %d, size: %d\n" , crtc->base.base.id, crtc->base.name, crtc_state->uapi .adjusted_mode.crtc_hdisplay, crtc_state->uapi.adjusted_mode .crtc_vdisplay, fb->base.format->cpp[0] * 8, cur_size) |
508 | "[CRTC:%d:%s] area: %dx%d, bpp: %d, size: %d\n",__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[CRTC:%d:%s] area: %dx%d, bpp: %d, size: %d\n" , crtc->base.base.id, crtc->base.name, crtc_state->uapi .adjusted_mode.crtc_hdisplay, crtc_state->uapi.adjusted_mode .crtc_vdisplay, fb->base.format->cpp[0] * 8, cur_size) |
509 | crtc->base.base.id, crtc->base.name,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[CRTC:%d:%s] area: %dx%d, bpp: %d, size: %d\n" , crtc->base.base.id, crtc->base.name, crtc_state->uapi .adjusted_mode.crtc_hdisplay, crtc_state->uapi.adjusted_mode .crtc_vdisplay, fb->base.format->cpp[0] * 8, cur_size) |
510 | crtc_state->uapi.adjusted_mode.crtc_hdisplay,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[CRTC:%d:%s] area: %dx%d, bpp: %d, size: %d\n" , crtc->base.base.id, crtc->base.name, crtc_state->uapi .adjusted_mode.crtc_hdisplay, crtc_state->uapi.adjusted_mode .crtc_vdisplay, fb->base.format->cpp[0] * 8, cur_size) |
511 | crtc_state->uapi.adjusted_mode.crtc_vdisplay,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[CRTC:%d:%s] area: %dx%d, bpp: %d, size: %d\n" , crtc->base.base.id, crtc->base.name, crtc_state->uapi .adjusted_mode.crtc_hdisplay, crtc_state->uapi.adjusted_mode .crtc_vdisplay, fb->base.format->cpp[0] * 8, cur_size) |
512 | fb->base.format->cpp[0] * 8,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[CRTC:%d:%s] area: %dx%d, bpp: %d, size: %d\n" , crtc->base.base.id, crtc->base.name, crtc_state->uapi .adjusted_mode.crtc_hdisplay, crtc_state->uapi.adjusted_mode .crtc_vdisplay, fb->base.format->cpp[0] * 8, cur_size) |
513 | cur_size)__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "[CRTC:%d:%s] area: %dx%d, bpp: %d, size: %d\n" , crtc->base.base.id, crtc->base.name, crtc_state->uapi .adjusted_mode.crtc_hdisplay, crtc_state->uapi.adjusted_mode .crtc_vdisplay, fb->base.format->cpp[0] * 8, cur_size); |
514 | |
515 | if (cur_size > max_size) { |
516 | drm_dbg_kms(&i915->drm,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "fb not big enough for [PLANE:%d:%s] (%d vs %d)\n" , plane->base.base.id, plane->base.name, cur_size, max_size ) |
517 | "fb not big enough for [PLANE:%d:%s] (%d vs %d)\n",__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "fb not big enough for [PLANE:%d:%s] (%d vs %d)\n" , plane->base.base.id, plane->base.name, cur_size, max_size ) |
518 | plane->base.base.id, plane->base.name,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "fb not big enough for [PLANE:%d:%s] (%d vs %d)\n" , plane->base.base.id, plane->base.name, cur_size, max_size ) |
519 | cur_size, max_size)__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "fb not big enough for [PLANE:%d:%s] (%d vs %d)\n" , plane->base.base.id, plane->base.name, cur_size, max_size ); |
520 | fb = NULL((void *)0); |
521 | break; |
522 | } |
523 | |
524 | drm_dbg_kms(&i915->drm,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "fb big enough [PLANE:%d:%s] (%d >= %d)\n" , plane->base.base.id, plane->base.name, max_size, cur_size ) |
525 | "fb big enough [PLANE:%d:%s] (%d >= %d)\n",__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "fb big enough [PLANE:%d:%s] (%d >= %d)\n" , plane->base.base.id, plane->base.name, max_size, cur_size ) |
526 | plane->base.base.id, plane->base.name,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "fb big enough [PLANE:%d:%s] (%d >= %d)\n" , plane->base.base.id, plane->base.name, max_size, cur_size ) |
527 | max_size, cur_size)__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "fb big enough [PLANE:%d:%s] (%d >= %d)\n" , plane->base.base.id, plane->base.name, max_size, cur_size ); |
528 | } |
529 | |
530 | if (!fb) { |
531 | drm_dbg_kms(&i915->drm,__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "BIOS fb not suitable for all pipes, not using\n" ) |
532 | "BIOS fb not suitable for all pipes, not using\n")__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "BIOS fb not suitable for all pipes, not using\n" ); |
533 | goto out; |
534 | } |
535 | |
536 | ifbdev->preferred_bpp = fb->base.format->cpp[0] * 8; |
537 | ifbdev->fb = fb; |
538 | |
539 | drm_framebuffer_get(&ifbdev->fb->base); |
540 | |
541 | /* Final pass to check if any active pipes don't have fbs */ |
542 | for_each_intel_crtc(dev, crtc)for (crtc = ({ const __typeof( ((__typeof(*crtc) *)0)->base .head ) *__mptr = ((&(dev)->mode_config.crtc_list)-> next); (__typeof(*crtc) *)( (char *)__mptr - __builtin_offsetof (__typeof(*crtc), base.head) );}); &crtc->base.head != (&(dev)->mode_config.crtc_list); crtc = ({ const __typeof ( ((__typeof(*crtc) *)0)->base.head ) *__mptr = (crtc-> base.head.next); (__typeof(*crtc) *)( (char *)__mptr - __builtin_offsetof (__typeof(*crtc), base.head) );})) { |
543 | struct intel_crtc_state *crtc_state = |
544 | to_intel_crtc_state(crtc->base.state)({ const __typeof( ((struct intel_crtc_state *)0)->uapi ) * __mptr = (crtc->base.state); (struct intel_crtc_state *)( ( char *)__mptr - __builtin_offsetof(struct intel_crtc_state, uapi ) );}); |
545 | struct intel_plane *plane = |
546 | to_intel_plane(crtc->base.primary)({ const __typeof( ((struct intel_plane *)0)->base ) *__mptr = (crtc->base.primary); (struct intel_plane *)( (char *)__mptr - __builtin_offsetof(struct intel_plane, base) );}); |
547 | struct intel_plane_state *plane_state = |
548 | to_intel_plane_state(plane->base.state)({ const __typeof( ((struct intel_plane_state *)0)->uapi ) *__mptr = (plane->base.state); (struct intel_plane_state * )( (char *)__mptr - __builtin_offsetof(struct intel_plane_state , uapi) );}); |
549 | |
550 | if (!crtc_state->uapi.active) |
551 | continue; |
552 | |
553 | drm_WARN(dev, !plane_state->uapi.fb,({ int __ret = !!(!plane_state->uapi.fb); if (__ret) printf ("%s %s: " "re-used BIOS config but lost an fb on [PLANE:%d:%s]\n" , dev_driver_string((dev)->dev), "", plane->base.base.id , plane->base.name); __builtin_expect(!!(__ret), 0); }) |
554 | "re-used BIOS config but lost an fb on [PLANE:%d:%s]\n",({ int __ret = !!(!plane_state->uapi.fb); if (__ret) printf ("%s %s: " "re-used BIOS config but lost an fb on [PLANE:%d:%s]\n" , dev_driver_string((dev)->dev), "", plane->base.base.id , plane->base.name); __builtin_expect(!!(__ret), 0); }) |
555 | plane->base.base.id, plane->base.name)({ int __ret = !!(!plane_state->uapi.fb); if (__ret) printf ("%s %s: " "re-used BIOS config but lost an fb on [PLANE:%d:%s]\n" , dev_driver_string((dev)->dev), "", plane->base.base.id , plane->base.name); __builtin_expect(!!(__ret), 0); }); |
556 | } |
557 | |
558 | |
559 | drm_dbg_kms(&i915->drm, "using BIOS fb for initial console\n")__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "using BIOS fb for initial console\n" ); |
560 | return true1; |
561 | |
562 | out: |
563 | |
564 | return false0; |
565 | } |
566 | |
567 | static void intel_fbdev_suspend_worker(struct work_struct *work) |
568 | { |
569 | intel_fbdev_set_suspend(&container_of(work,({ const __typeof( ((struct inteldrm_softc *)0)->display.fbdev .suspend_work ) *__mptr = (work); (struct inteldrm_softc *)( ( char *)__mptr - __builtin_offsetof(struct inteldrm_softc, display .fbdev.suspend_work) );}) |
570 | struct drm_i915_private,({ const __typeof( ((struct inteldrm_softc *)0)->display.fbdev .suspend_work ) *__mptr = (work); (struct inteldrm_softc *)( ( char *)__mptr - __builtin_offsetof(struct inteldrm_softc, display .fbdev.suspend_work) );}) |
571 | display.fbdev.suspend_work)({ const __typeof( ((struct inteldrm_softc *)0)->display.fbdev .suspend_work ) *__mptr = (work); (struct inteldrm_softc *)( ( char *)__mptr - __builtin_offsetof(struct inteldrm_softc, display .fbdev.suspend_work) );})->drm, |
572 | FBINFO_STATE_RUNNING0, |
573 | true1); |
574 | } |
575 | |
576 | int intel_fbdev_init(struct drm_device *dev) |
577 | { |
578 | struct drm_i915_privateinteldrm_softc *dev_priv = to_i915(dev); |
579 | struct intel_fbdev *ifbdev; |
580 | int ret; |
581 | |
582 | if (drm_WARN_ON(dev, !HAS_DISPLAY(dev_priv))({ int __ret = !!((!((&(dev_priv)->__runtime)->pipe_mask != 0))); if (__ret) printf("%s %s: " "%s", dev_driver_string (((dev))->dev), "", "drm_WARN_ON(" "!((&(dev_priv)->__runtime)->pipe_mask != 0)" ")"); __builtin_expect(!!(__ret), 0); })) |
583 | return -ENODEV19; |
584 | |
585 | ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL(0x0001 | 0x0004)); |
586 | if (ifbdev == NULL((void *)0)) |
587 | return -ENOMEM12; |
588 | |
589 | rw_init(&ifbdev->hpd_lock, "hdplk")_rw_init_flags(&ifbdev->hpd_lock, "hdplk", 0, ((void * )0)); |
590 | drm_fb_helper_prepare(dev, &ifbdev->helper, &intel_fb_helper_funcs); |
591 | |
592 | if (!intel_fbdev_init_bios(dev, ifbdev)) |
593 | ifbdev->preferred_bpp = 32; |
594 | |
595 | ret = drm_fb_helper_init(dev, &ifbdev->helper); |
596 | if (ret) { |
597 | kfree(ifbdev); |
598 | return ret; |
599 | } |
600 | |
601 | dev_priv->display.fbdev.fbdev = ifbdev; |
602 | INIT_WORK(&dev_priv->display.fbdev.suspend_work, intel_fbdev_suspend_worker); |
603 | |
604 | return 0; |
605 | } |
606 | |
607 | static void intel_fbdev_initial_config(void *data, async_cookie_t cookie) |
608 | { |
609 | struct intel_fbdev *ifbdev = data; |
610 | |
611 | /* Due to peculiar init order wrt to hpd handling this is separate. */ |
612 | if (drm_fb_helper_initial_config(&ifbdev->helper, |
613 | ifbdev->preferred_bpp)) |
614 | intel_fbdev_unregister(to_i915(ifbdev->helper.dev)); |
615 | } |
616 | |
617 | void intel_fbdev_initial_config_async(struct drm_device *dev) |
618 | { |
619 | struct intel_fbdev *ifbdev = to_i915(dev)->display.fbdev.fbdev; |
620 | |
621 | if (!ifbdev) |
622 | return; |
623 | |
624 | ifbdev->cookie = async_schedule(intel_fbdev_initial_config, ifbdev); |
625 | } |
626 | |
627 | static void intel_fbdev_sync(struct intel_fbdev *ifbdev) |
628 | { |
629 | #ifdef __linux__ |
630 | if (!ifbdev->cookie) |
631 | return; |
632 | |
633 | /* Only serialises with all preceding async calls, hence +1 */ |
634 | async_synchronize_cookie(ifbdev->cookie + 1); |
635 | ifbdev->cookie = 0; |
636 | #endif |
637 | } |
638 | |
639 | void intel_fbdev_unregister(struct drm_i915_privateinteldrm_softc *dev_priv) |
640 | { |
641 | struct intel_fbdev *ifbdev = dev_priv->display.fbdev.fbdev; |
642 | |
643 | if (!ifbdev) |
644 | return; |
645 | |
646 | intel_fbdev_set_suspend(&dev_priv->drm, FBINFO_STATE_SUSPENDED1, true1); |
647 | |
648 | #ifdef __linux__ |
649 | if (!current_is_async()) |
650 | intel_fbdev_sync(ifbdev); |
651 | #endif |
652 | |
653 | drm_fb_helper_unregister_fbi(&ifbdev->helper); |
654 | } |
655 | |
656 | void intel_fbdev_fini(struct drm_i915_privateinteldrm_softc *dev_priv) |
657 | { |
658 | struct intel_fbdev *ifbdev = fetch_and_zero(&dev_priv->display.fbdev.fbdev)({ typeof(*&dev_priv->display.fbdev.fbdev) __T = *(& dev_priv->display.fbdev.fbdev); *(&dev_priv->display .fbdev.fbdev) = (typeof(*&dev_priv->display.fbdev.fbdev ))0; __T; }); |
659 | |
660 | if (!ifbdev) |
661 | return; |
662 | |
663 | intel_fbdev_destroy(ifbdev); |
664 | } |
665 | |
666 | /* Suspends/resumes fbdev processing of incoming HPD events. When resuming HPD |
667 | * processing, fbdev will perform a full connector reprobe if a hotplug event |
668 | * was received while HPD was suspended. |
669 | */ |
670 | static void intel_fbdev_hpd_set_suspend(struct drm_i915_privateinteldrm_softc *i915, int state) |
671 | { |
672 | struct intel_fbdev *ifbdev = i915->display.fbdev.fbdev; |
673 | bool_Bool send_hpd = false0; |
674 | |
675 | mutex_lock(&ifbdev->hpd_lock)rw_enter_write(&ifbdev->hpd_lock); |
676 | ifbdev->hpd_suspended = state == FBINFO_STATE_SUSPENDED1; |
677 | send_hpd = !ifbdev->hpd_suspended && ifbdev->hpd_waiting; |
678 | ifbdev->hpd_waiting = false0; |
679 | mutex_unlock(&ifbdev->hpd_lock)rw_exit_write(&ifbdev->hpd_lock); |
680 | |
681 | if (send_hpd) { |
682 | drm_dbg_kms(&i915->drm, "Handling delayed fbcon HPD event\n")__drm_dev_dbg(((void *)0), (&i915->drm) ? (&i915-> drm)->dev : ((void *)0), DRM_UT_KMS, "Handling delayed fbcon HPD event\n" ); |
683 | drm_fb_helper_hotplug_event(&ifbdev->helper); |
684 | } |
685 | } |
686 | |
687 | void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool_Bool synchronous) |
688 | { |
689 | #ifdef __linux__ |
690 | struct drm_i915_privateinteldrm_softc *dev_priv = to_i915(dev); |
691 | struct intel_fbdev *ifbdev = dev_priv->display.fbdev.fbdev; |
692 | struct fb_info *info; |
693 | |
694 | if (!ifbdev) |
695 | return; |
696 | |
697 | if (drm_WARN_ON(&dev_priv->drm, !HAS_DISPLAY(dev_priv))({ int __ret = !!((!((&(dev_priv)->__runtime)->pipe_mask != 0))); if (__ret) printf("%s %s: " "%s", dev_driver_string (((&dev_priv->drm))->dev), "", "drm_WARN_ON(" "!((&(dev_priv)->__runtime)->pipe_mask != 0)" ")"); __builtin_expect(!!(__ret), 0); })) |
698 | return; |
699 | |
700 | if (!ifbdev->vma) |
701 | goto set_suspend; |
702 | |
703 | info = ifbdev->helper.fbdev; |
704 | |
705 | if (synchronous) { |
706 | /* Flush any pending work to turn the console on, and then |
707 | * wait to turn it off. It must be synchronous as we are |
708 | * about to suspend or unload the driver. |
709 | * |
710 | * Note that from within the work-handler, we cannot flush |
711 | * ourselves, so only flush outstanding work upon suspend! |
712 | */ |
713 | if (state != FBINFO_STATE_RUNNING0) |
714 | flush_work(&dev_priv->display.fbdev.suspend_work); |
715 | |
716 | console_lock(); |
717 | } else { |
718 | /* |
719 | * The console lock can be pretty contented on resume due |
720 | * to all the printk activity. Try to keep it out of the hot |
721 | * path of resume if possible. |
722 | */ |
723 | drm_WARN_ON(dev, state != FBINFO_STATE_RUNNING)({ int __ret = !!((state != 0)); if (__ret) printf("%s %s: " "%s" , dev_driver_string(((dev))->dev), "", "drm_WARN_ON(" "state != 0" ")"); __builtin_expect(!!(__ret), 0); }); |
724 | if (!console_trylock()) { |
725 | /* Don't block our own workqueue as this can |
726 | * be run in parallel with other i915.ko tasks. |
727 | */ |
728 | schedule_work(&dev_priv->display.fbdev.suspend_work); |
729 | return; |
730 | } |
731 | } |
732 | |
733 | /* On resume from hibernation: If the object is shmemfs backed, it has |
734 | * been restored from swap. If the object is stolen however, it will be |
735 | * full of whatever garbage was left in there. |
736 | */ |
737 | if (state == FBINFO_STATE_RUNNING0 && |
738 | !i915_gem_object_is_shmem(intel_fb_obj(&ifbdev->fb->base)((&ifbdev->fb->base) ? to_intel_bo((&ifbdev-> fb->base)->obj[0]) : ((void *)0)))) |
739 | memset_io(info->screen_base, 0, info->screen_size)__builtin_memset((info->screen_base), (0), (info->screen_size )); |
740 | |
741 | drm_fb_helper_set_suspend(&ifbdev->helper, state); |
742 | console_unlock(); |
743 | |
744 | set_suspend: |
745 | intel_fbdev_hpd_set_suspend(dev_priv, state); |
746 | #endif |
747 | } |
748 | |
749 | void intel_fbdev_output_poll_changed(struct drm_device *dev) |
750 | { |
751 | struct intel_fbdev *ifbdev = to_i915(dev)->display.fbdev.fbdev; |
752 | bool_Bool send_hpd; |
753 | |
754 | if (!ifbdev) |
755 | return; |
756 | |
757 | intel_fbdev_sync(ifbdev); |
758 | |
759 | mutex_lock(&ifbdev->hpd_lock)rw_enter_write(&ifbdev->hpd_lock); |
760 | send_hpd = !ifbdev->hpd_suspended; |
761 | ifbdev->hpd_waiting = true1; |
762 | mutex_unlock(&ifbdev->hpd_lock)rw_exit_write(&ifbdev->hpd_lock); |
763 | |
764 | if (send_hpd && (ifbdev->vma || ifbdev->helper.deferred_setup)) |
765 | drm_fb_helper_hotplug_event(&ifbdev->helper); |
766 | } |
767 | |
768 | void intel_fbdev_restore_mode(struct drm_device *dev) |
769 | { |
770 | struct intel_fbdev *ifbdev = to_i915(dev)->display.fbdev.fbdev; |
771 | |
772 | if (!ifbdev) |
773 | return; |
774 | |
775 | intel_fbdev_sync(ifbdev); |
776 | if (!ifbdev->vma) |
777 | return; |
778 | |
779 | if (drm_fb_helper_restore_fbdev_mode_unlocked(&ifbdev->helper) == 0) |
780 | intel_fbdev_invalidate(ifbdev); |
781 | } |
782 | |
783 | struct intel_framebuffer *intel_fbdev_framebuffer(struct intel_fbdev *fbdev) |
784 | { |
785 | if (!fbdev || !fbdev->helper.fb) |
786 | return NULL((void *)0); |
787 | |
788 | return to_intel_framebuffer(fbdev->helper.fb)({ const __typeof( ((struct intel_framebuffer *)0)->base ) *__mptr = (fbdev->helper.fb); (struct intel_framebuffer * )( (char *)__mptr - __builtin_offsetof(struct intel_framebuffer , base) );}); |
789 | } |