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
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
26 #include <linux/module.h>
27 #include <linux/slab.h>
33 #include "drm_crtc_helper.h"
34 #include "radeon_drm.h"
37 #include "drm_fb_helper.h"
39 #include <linux/vga_switcheroo.h>
42 this contains a helper + a radeon fb
43 the helper contains a pointer to radeon framebuffer baseclass.
46 struct drm_fb_helper helper
;
47 struct radeon_framebuffer rfb
;
48 struct list_head fbdev_list
;
49 struct radeon_device
*rdev
;
52 static struct fb_ops radeonfb_ops
= {
54 .fb_check_var
= drm_fb_helper_check_var
,
55 .fb_set_par
= drm_fb_helper_set_par
,
56 .fb_fillrect
= cfb_fillrect
,
57 .fb_copyarea
= cfb_copyarea
,
58 .fb_imageblit
= cfb_imageblit
,
59 .fb_pan_display
= drm_fb_helper_pan_display
,
60 .fb_blank
= drm_fb_helper_blank
,
61 .fb_setcmap
= drm_fb_helper_setcmap
,
62 .fb_debug_enter
= drm_fb_helper_debug_enter
,
63 .fb_debug_leave
= drm_fb_helper_debug_leave
,
67 int radeon_align_pitch(struct radeon_device
*rdev
, int width
, int bpp
, bool tiled
)
70 int align_large
= (ASIC_IS_AVIVO(rdev
)) || tiled
;
75 pitch_mask
= align_large
? 255 : 127;
78 pitch_mask
= align_large
? 127 : 31;
82 pitch_mask
= align_large
? 63 : 15;
86 aligned
+= pitch_mask
;
87 aligned
&= ~pitch_mask
;
91 static void radeonfb_destroy_pinned_object(struct drm_gem_object
*gobj
)
93 struct radeon_bo
*rbo
= gem_to_radeon_bo(gobj
);
96 ret
= radeon_bo_reserve(rbo
, false);
97 if (likely(ret
== 0)) {
98 radeon_bo_kunmap(rbo
);
100 radeon_bo_unreserve(rbo
);
102 drm_gem_object_unreference_unlocked(gobj
);
105 static int radeonfb_create_pinned_object(struct radeon_fbdev
*rfbdev
,
106 struct drm_mode_fb_cmd
*mode_cmd
,
107 struct drm_gem_object
**gobj_p
)
109 struct radeon_device
*rdev
= rfbdev
->rdev
;
110 struct drm_gem_object
*gobj
= NULL
;
111 struct radeon_bo
*rbo
= NULL
;
112 bool fb_tiled
= false; /* useful for testing */
113 u32 tiling_flags
= 0;
115 int aligned_size
, size
;
116 int height
= mode_cmd
->height
;
118 /* need to align pitch with crtc limits */
119 mode_cmd
->pitch
= radeon_align_pitch(rdev
, mode_cmd
->width
, mode_cmd
->bpp
, fb_tiled
) * ((mode_cmd
->bpp
+ 1) / 8);
121 if (rdev
->family
>= CHIP_R600
)
122 height
= ALIGN(mode_cmd
->height
, 8);
123 size
= mode_cmd
->pitch
* height
;
124 aligned_size
= ALIGN(size
, PAGE_SIZE
);
125 ret
= radeon_gem_object_create(rdev
, aligned_size
, 0,
126 RADEON_GEM_DOMAIN_VRAM
,
130 printk(KERN_ERR
"failed to allocate framebuffer (%d)\n",
134 rbo
= gem_to_radeon_bo(gobj
);
137 tiling_flags
= RADEON_TILING_MACRO
;
140 switch (mode_cmd
->bpp
) {
142 tiling_flags
|= RADEON_TILING_SWAP_32BIT
;
145 tiling_flags
|= RADEON_TILING_SWAP_16BIT
;
152 ret
= radeon_bo_set_tiling_flags(rbo
,
153 tiling_flags
| RADEON_TILING_SURFACE
,
156 dev_err(rdev
->dev
, "FB failed to set tiling flags\n");
160 ret
= radeon_bo_reserve(rbo
, false);
161 if (unlikely(ret
!= 0))
163 ret
= radeon_bo_pin(rbo
, RADEON_GEM_DOMAIN_VRAM
, NULL
);
165 radeon_bo_unreserve(rbo
);
169 radeon_bo_check_tiling(rbo
, 0, 0);
170 ret
= radeon_bo_kmap(rbo
, NULL
);
171 radeon_bo_unreserve(rbo
);
179 radeonfb_destroy_pinned_object(gobj
);
184 static int radeonfb_create(struct radeon_fbdev
*rfbdev
,
185 struct drm_fb_helper_surface_size
*sizes
)
187 struct radeon_device
*rdev
= rfbdev
->rdev
;
188 struct fb_info
*info
;
189 struct drm_framebuffer
*fb
= NULL
;
190 struct drm_mode_fb_cmd mode_cmd
;
191 struct drm_gem_object
*gobj
= NULL
;
192 struct radeon_bo
*rbo
= NULL
;
193 struct device
*device
= &rdev
->pdev
->dev
;
197 mode_cmd
.width
= sizes
->surface_width
;
198 mode_cmd
.height
= sizes
->surface_height
;
200 /* avivo can't scanout real 24bpp */
201 if ((sizes
->surface_bpp
== 24) && ASIC_IS_AVIVO(rdev
))
202 sizes
->surface_bpp
= 32;
204 mode_cmd
.bpp
= sizes
->surface_bpp
;
205 mode_cmd
.depth
= sizes
->surface_depth
;
207 ret
= radeonfb_create_pinned_object(rfbdev
, &mode_cmd
, &gobj
);
208 rbo
= gem_to_radeon_bo(gobj
);
210 /* okay we have an object now allocate the framebuffer */
211 info
= framebuffer_alloc(0, device
);
219 radeon_framebuffer_init(rdev
->ddev
, &rfbdev
->rfb
, &mode_cmd
, gobj
);
221 fb
= &rfbdev
->rfb
.base
;
224 rfbdev
->helper
.fb
= fb
;
225 rfbdev
->helper
.fbdev
= info
;
227 memset_io(rbo
->kptr
, 0x0, radeon_bo_size(rbo
));
229 strcpy(info
->fix
.id
, "radeondrmfb");
231 drm_fb_helper_fill_fix(info
, fb
->pitch
, fb
->depth
);
233 info
->flags
= FBINFO_DEFAULT
| FBINFO_CAN_FORCE_OUTPUT
;
234 info
->fbops
= &radeonfb_ops
;
236 tmp
= radeon_bo_gpu_offset(rbo
) - rdev
->mc
.vram_start
;
237 info
->fix
.smem_start
= rdev
->mc
.aper_base
+ tmp
;
238 info
->fix
.smem_len
= radeon_bo_size(rbo
);
239 info
->screen_base
= rbo
->kptr
;
240 info
->screen_size
= radeon_bo_size(rbo
);
242 drm_fb_helper_fill_var(info
, &rfbdev
->helper
, sizes
->fb_width
, sizes
->fb_height
);
244 /* setup aperture base/size for vesafb takeover */
245 info
->apertures
= alloc_apertures(1);
246 if (!info
->apertures
) {
250 info
->apertures
->ranges
[0].base
= rdev
->ddev
->mode_config
.fb_base
;
251 info
->apertures
->ranges
[0].size
= rdev
->mc
.aper_size
;
253 info
->pixmap
.size
= 64*1024;
254 info
->pixmap
.buf_align
= 8;
255 info
->pixmap
.access_align
= 32;
256 info
->pixmap
.flags
= FB_PIXMAP_SYSTEM
;
257 info
->pixmap
.scan_align
= 1;
259 if (info
->screen_base
== NULL
) {
264 ret
= fb_alloc_cmap(&info
->cmap
, 256, 0);
270 DRM_INFO("fb mappable at 0x%lX\n", info
->fix
.smem_start
);
271 DRM_INFO("vram apper at 0x%lX\n", (unsigned long)rdev
->mc
.aper_base
);
272 DRM_INFO("size %lu\n", (unsigned long)radeon_bo_size(rbo
));
273 DRM_INFO("fb depth is %d\n", fb
->depth
);
274 DRM_INFO(" pitch is %d\n", fb
->pitch
);
276 vga_switcheroo_client_fb_set(rdev
->ddev
->pdev
, info
);
284 drm_gem_object_unreference(gobj
);
285 drm_framebuffer_cleanup(fb
);
291 static int radeon_fb_find_or_create_single(struct drm_fb_helper
*helper
,
292 struct drm_fb_helper_surface_size
*sizes
)
294 struct radeon_fbdev
*rfbdev
= (struct radeon_fbdev
*)helper
;
299 ret
= radeonfb_create(rfbdev
, sizes
);
307 static char *mode_option
;
308 int radeon_parse_options(char *options
)
312 if (!options
|| !*options
)
315 while ((this_opt
= strsep(&options
, ",")) != NULL
) {
318 mode_option
= this_opt
;
323 void radeon_fb_output_poll_changed(struct radeon_device
*rdev
)
325 drm_fb_helper_hotplug_event(&rdev
->mode_info
.rfbdev
->helper
);
328 static int radeon_fbdev_destroy(struct drm_device
*dev
, struct radeon_fbdev
*rfbdev
)
330 struct fb_info
*info
;
331 struct radeon_framebuffer
*rfb
= &rfbdev
->rfb
;
333 if (rfbdev
->helper
.fbdev
) {
334 info
= rfbdev
->helper
.fbdev
;
336 unregister_framebuffer(info
);
338 fb_dealloc_cmap(&info
->cmap
);
339 framebuffer_release(info
);
343 radeonfb_destroy_pinned_object(rfb
->obj
);
346 drm_fb_helper_fini(&rfbdev
->helper
);
347 drm_framebuffer_cleanup(&rfb
->base
);
352 static struct drm_fb_helper_funcs radeon_fb_helper_funcs
= {
353 .gamma_set
= radeon_crtc_fb_gamma_set
,
354 .gamma_get
= radeon_crtc_fb_gamma_get
,
355 .fb_probe
= radeon_fb_find_or_create_single
,
358 int radeon_fbdev_init(struct radeon_device
*rdev
)
360 struct radeon_fbdev
*rfbdev
;
364 /* select 8 bpp console on RN50 or 16MB cards */
365 if (ASIC_IS_RN50(rdev
) || rdev
->mc
.real_vram_size
<= (32*1024*1024))
368 rfbdev
= kzalloc(sizeof(struct radeon_fbdev
), GFP_KERNEL
);
373 rdev
->mode_info
.rfbdev
= rfbdev
;
374 rfbdev
->helper
.funcs
= &radeon_fb_helper_funcs
;
376 ret
= drm_fb_helper_init(rdev
->ddev
, &rfbdev
->helper
,
378 RADEONFB_CONN_LIMIT
);
384 drm_fb_helper_single_add_all_connectors(&rfbdev
->helper
);
385 drm_fb_helper_initial_config(&rfbdev
->helper
, bpp_sel
);
389 void radeon_fbdev_fini(struct radeon_device
*rdev
)
391 if (!rdev
->mode_info
.rfbdev
)
394 radeon_fbdev_destroy(rdev
->ddev
, rdev
->mode_info
.rfbdev
);
395 kfree(rdev
->mode_info
.rfbdev
);
396 rdev
->mode_info
.rfbdev
= NULL
;
399 void radeon_fbdev_set_suspend(struct radeon_device
*rdev
, int state
)
401 fb_set_suspend(rdev
->mode_info
.rfbdev
->helper
.fbdev
, state
);
404 int radeon_fbdev_total_size(struct radeon_device
*rdev
)
406 struct radeon_bo
*robj
;
409 robj
= gem_to_radeon_bo(rdev
->mode_info
.rfbdev
->rfb
.obj
);
410 size
+= radeon_bo_size(robj
);
414 bool radeon_fbdev_robj_is_fb(struct radeon_device
*rdev
, struct radeon_bo
*robj
)
416 if (robj
== gem_to_radeon_bo(rdev
->mode_info
.rfbdev
->rfb
.obj
))