2 * Copyright © 2007 David Airlie
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:
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
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
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21 * DEALINGS IN THE SOFTWARE.
26 * $FreeBSD: head/sys/dev/drm2/radeon/radeon_fb.c 254885 2013-08-25 19:37:15Z dumbbell $
30 #include <drm/drm_crtc.h>
31 #include <drm/drm_crtc_helper.h>
32 #include <uapi_drm/radeon_drm.h>
35 #include <drm/drm_fb_helper.h>
38 this contains a helper + a radeon fb
39 the helper contains a pointer to radeon framebuffer baseclass.
42 struct drm_fb_helper helper;
43 struct radeon_framebuffer rfb;
44 struct list_head fbdev_list;
45 struct radeon_device *rdev;
49 static struct fb_ops radeonfb_ops = {
51 .fb_check_var = drm_fb_helper_check_var,
52 .fb_set_par = drm_fb_helper_set_par,
53 .fb_fillrect = cfb_fillrect,
54 .fb_copyarea = cfb_copyarea,
55 .fb_imageblit = cfb_imageblit,
56 .fb_pan_display = drm_fb_helper_pan_display,
57 .fb_blank = drm_fb_helper_blank,
58 .fb_setcmap = drm_fb_helper_setcmap,
59 .fb_debug_enter = drm_fb_helper_debug_enter,
60 .fb_debug_leave = drm_fb_helper_debug_leave,
62 #endif /* DUMBBELL_WIP */
65 int radeon_align_pitch(struct radeon_device *rdev, int width, int bpp, bool tiled)
68 int align_large = (ASIC_IS_AVIVO(rdev)) || tiled;
73 pitch_mask = align_large ? 255 : 127;
76 pitch_mask = align_large ? 127 : 31;
80 pitch_mask = align_large ? 63 : 15;
84 aligned += pitch_mask;
85 aligned &= ~pitch_mask;
89 static void radeonfb_destroy_pinned_object(struct drm_gem_object *gobj)
91 struct radeon_bo *rbo = gem_to_radeon_bo(gobj);
94 ret = radeon_bo_reserve(rbo, false);
95 if (likely(ret == 0)) {
96 radeon_bo_kunmap(rbo);
98 radeon_bo_unreserve(rbo);
100 drm_gem_object_unreference_unlocked(gobj);
103 static int radeonfb_create_pinned_object(struct radeon_fbdev *rfbdev,
104 struct drm_mode_fb_cmd2 *mode_cmd,
105 struct drm_gem_object **gobj_p)
107 struct radeon_device *rdev = rfbdev->rdev;
108 struct drm_gem_object *gobj = NULL;
109 struct radeon_bo *rbo = NULL;
110 bool fb_tiled = false; /* useful for testing */
111 u32 tiling_flags = 0;
113 int aligned_size, size;
114 int height = mode_cmd->height;
117 drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp);
119 /* need to align pitch with crtc limits */
120 mode_cmd->pitches[0] = radeon_align_pitch(rdev, mode_cmd->width, bpp,
121 fb_tiled) * ((bpp + 1) / 8);
123 if (rdev->family >= CHIP_R600)
124 height = ALIGN(mode_cmd->height, 8);
125 size = mode_cmd->pitches[0] * height;
126 aligned_size = ALIGN(size, PAGE_SIZE);
127 ret = radeon_gem_object_create(rdev, aligned_size, 0,
128 RADEON_GEM_DOMAIN_VRAM,
132 printk(KERN_ERR "failed to allocate framebuffer (%d)\n",
136 rbo = gem_to_radeon_bo(gobj);
139 tiling_flags = RADEON_TILING_MACRO;
144 tiling_flags |= RADEON_TILING_SWAP_32BIT;
147 tiling_flags |= RADEON_TILING_SWAP_16BIT;
154 ret = radeon_bo_set_tiling_flags(rbo,
155 tiling_flags | RADEON_TILING_SURFACE,
156 mode_cmd->pitches[0]);
158 dev_err(rdev->dev, "FB failed to set tiling flags\n");
162 ret = radeon_bo_reserve(rbo, false);
163 if (unlikely(ret != 0))
165 /* Only 27 bit offset for legacy CRTC */
166 ret = radeon_bo_pin_restricted(rbo, RADEON_GEM_DOMAIN_VRAM,
167 ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27,
170 radeon_bo_unreserve(rbo);
174 radeon_bo_check_tiling(rbo, 0, 0);
175 ret = radeon_bo_kmap(rbo, NULL);
176 radeon_bo_unreserve(rbo);
184 radeonfb_destroy_pinned_object(gobj);
189 static int radeonfb_create(struct drm_fb_helper *helper,
190 struct drm_fb_helper_surface_size *sizes)
192 struct radeon_fbdev *rfbdev = (struct radeon_fbdev *)helper;
193 struct radeon_device *rdev = rfbdev->rdev;
194 struct fb_info *info;
195 struct drm_framebuffer *fb = NULL;
196 struct drm_mode_fb_cmd2 mode_cmd;
197 struct drm_gem_object *gobj = NULL;
198 struct radeon_bo *rbo = NULL;
200 device_t device = rdev->dev;
201 #endif /* DUMBBELL_WIP */
202 device_t vga_dev = device_get_parent(rdev->dev);
206 mode_cmd.width = sizes->surface_width;
207 mode_cmd.height = sizes->surface_height;
209 /* avivo can't scanout real 24bpp */
210 if ((sizes->surface_bpp == 24) && ASIC_IS_AVIVO(rdev))
211 sizes->surface_bpp = 32;
213 mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
214 sizes->surface_depth);
216 ret = radeonfb_create_pinned_object(rfbdev, &mode_cmd, &gobj);
218 DRM_ERROR("failed to create fbcon object %d\n", ret);
222 rbo = gem_to_radeon_bo(gobj);
224 info = kmalloc(sizeof(*info), M_DRM, M_WAITOK | M_ZERO);
226 ret = radeon_framebuffer_init(rdev->ddev, &rfbdev->rfb, &mode_cmd, gobj);
228 DRM_ERROR("failed to initialize framebuffer %d\n", ret);
232 fb = &rfbdev->rfb.base;
235 rfbdev->helper.fb = fb;
236 rfbdev->helper.fbdev = info;
238 memset(rbo->kptr, 0, radeon_bo_size(rbo));
239 tmp = radeon_bo_gpu_offset(rbo) - rdev->mc.vram_start;
240 info->vaddr = (vm_offset_t)rbo->kptr;
241 info->paddr = rdev->mc.aper_base + tmp;
242 info->width = sizes->surface_width;
243 info->height = sizes->surface_height;
244 info->stride = fb->pitches[0];
245 info->depth = sizes->surface_bpp;
246 info->is_vga_boot_display = vga_pci_is_boot_display(vga_dev);
248 DRM_INFO("fb mappable at 0x%jX\n", info->paddr);
249 DRM_INFO("vram apper at 0x%lX\n", (unsigned long)rdev->mc.aper_base);
250 DRM_INFO("size %lu\n", (unsigned long)radeon_bo_size(rbo));
251 DRM_INFO("fb depth is %d\n", fb->depth);
252 DRM_INFO(" pitch is %d\n", fb->pitches[0]);
260 drm_gem_object_unreference(gobj);
261 drm_framebuffer_unregister_private(fb);
262 drm_framebuffer_cleanup(fb);
263 kfree(fb); /* XXX malloc'd in radeon_user_framebuffer_create? */
268 void radeon_fb_output_poll_changed(struct radeon_device *rdev)
270 drm_fb_helper_hotplug_event(&rdev->mode_info.rfbdev->helper);
273 static int radeon_fbdev_destroy(struct drm_device *dev, struct radeon_fbdev *rfbdev)
275 /* XXX unconfigure fb_info from syscons */
277 struct fb_info *info;
278 #endif /* DUMBBELL_WIP */
279 struct radeon_framebuffer *rfb = &rfbdev->rfb;
282 if (rfbdev->helper.fbdev) {
283 info = rfbdev->helper.fbdev;
285 unregister_framebuffer(info);
287 fb_dealloc_cmap(&info->cmap);
288 framebuffer_release(info);
290 #endif /* DUMBBELL_WIP */
293 DRM_UNLOCK(dev); /* Work around lock recursion. dumbbell@ */
294 radeonfb_destroy_pinned_object(rfb->obj);
298 drm_fb_helper_fini(&rfbdev->helper);
299 drm_framebuffer_unregister_private(&rfb->base);
300 drm_framebuffer_cleanup(&rfb->base);
305 static struct drm_fb_helper_funcs radeon_fb_helper_funcs = {
306 .gamma_set = radeon_crtc_fb_gamma_set,
307 .gamma_get = radeon_crtc_fb_gamma_get,
308 .fb_probe = radeonfb_create,
311 int radeon_fbdev_init(struct radeon_device *rdev)
313 struct radeon_fbdev *rfbdev;
317 /* select 8 bpp console on RN50 or 16MB cards */
318 if (ASIC_IS_RN50(rdev) || rdev->mc.real_vram_size <= (32*1024*1024))
321 rfbdev = kzalloc(sizeof(struct radeon_fbdev), GFP_KERNEL);
326 rdev->mode_info.rfbdev = rfbdev;
327 rfbdev->helper.funcs = &radeon_fb_helper_funcs;
329 ret = drm_fb_helper_init(rdev->ddev, &rfbdev->helper,
331 RADEONFB_CONN_LIMIT);
337 drm_fb_helper_single_add_all_connectors(&rfbdev->helper);
339 /* disable all the possible outputs/crtcs before entering KMS mode */
340 drm_helper_disable_unused_functions(rdev->ddev);
342 drm_fb_helper_initial_config(&rfbdev->helper, bpp_sel);
346 void radeon_fbdev_fini(struct radeon_device *rdev)
348 if (!rdev->mode_info.rfbdev)
351 radeon_fbdev_destroy(rdev->ddev, rdev->mode_info.rfbdev);
352 kfree(rdev->mode_info.rfbdev);
353 rdev->mode_info.rfbdev = NULL;
356 void radeon_fbdev_set_suspend(struct radeon_device *rdev, int state)
359 fb_set_suspend(rdev->mode_info.rfbdev->helper.fbdev, state);
360 #endif /* DUMBBELL_WIP */
363 int radeon_fbdev_total_size(struct radeon_device *rdev)
365 struct radeon_bo *robj;
368 robj = gem_to_radeon_bo(rdev->mode_info.rfbdev->rfb.obj);
369 size += radeon_bo_size(robj);
373 bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj)
375 if (robj == gem_to_radeon_bo(rdev->mode_info.rfbdev->rfb.obj))