1 /*
2  * Copyright 2010 Red Hat Inc.
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 shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: Ben Skeggs
23  */
24 
25 #include "nouveau_drm.h"
26 #include "nouveau_dma.h"
27 #include "nouveau_fbcon.h"
28 
29 int
nv50_fbcon_fillrect(struct fb_info * info,const struct fb_fillrect * rect)30 nv50_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
31 {
32 	struct nouveau_fbdev *nfbdev = info->par;
33 	struct nouveau_drm *drm = nouveau_drm(nfbdev->dev);
34 	struct nouveau_channel *chan = drm->channel;
35 	int ret;
36 
37 	ret = RING_SPACE(chan, rect->rop == ROP_COPY ? 7 : 11);
38 	if (ret)
39 		return ret;
40 
41 	if (rect->rop != ROP_COPY) {
42 		BEGIN_NV04(chan, NvSub2D, 0x02ac, 1);
43 		OUT_RING(chan, 1);
44 	}
45 	BEGIN_NV04(chan, NvSub2D, 0x0588, 1);
46 	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
47 	    info->fix.visual == FB_VISUAL_DIRECTCOLOR)
48 		OUT_RING(chan, ((uint32_t *)info->pseudo_palette)[rect->color]);
49 	else
50 		OUT_RING(chan, rect->color);
51 	BEGIN_NV04(chan, NvSub2D, 0x0600, 4);
52 	OUT_RING(chan, rect->dx);
53 	OUT_RING(chan, rect->dy);
54 	OUT_RING(chan, rect->dx + rect->width);
55 	OUT_RING(chan, rect->dy + rect->height);
56 	if (rect->rop != ROP_COPY) {
57 		BEGIN_NV04(chan, NvSub2D, 0x02ac, 1);
58 		OUT_RING(chan, 3);
59 	}
60 	FIRE_RING(chan);
61 	return 0;
62 }
63 
64 int
nv50_fbcon_copyarea(struct fb_info * info,const struct fb_copyarea * region)65 nv50_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *region)
66 {
67 	struct nouveau_fbdev *nfbdev = info->par;
68 	struct nouveau_drm *drm = nouveau_drm(nfbdev->dev);
69 	struct nouveau_channel *chan = drm->channel;
70 	int ret;
71 
72 	ret = RING_SPACE(chan, 12);
73 	if (ret)
74 		return ret;
75 
76 	BEGIN_NV04(chan, NvSub2D, 0x0110, 1);
77 	OUT_RING(chan, 0);
78 	BEGIN_NV04(chan, NvSub2D, 0x08b0, 4);
79 	OUT_RING(chan, region->dx);
80 	OUT_RING(chan, region->dy);
81 	OUT_RING(chan, region->width);
82 	OUT_RING(chan, region->height);
83 	BEGIN_NV04(chan, NvSub2D, 0x08d0, 4);
84 	OUT_RING(chan, 0);
85 	OUT_RING(chan, region->sx);
86 	OUT_RING(chan, 0);
87 	OUT_RING(chan, region->sy);
88 	FIRE_RING(chan);
89 	return 0;
90 }
91 
92 int
nv50_fbcon_imageblit(struct fb_info * info,const struct fb_image * image)93 nv50_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
94 {
95 	struct nouveau_fbdev *nfbdev = info->par;
96 	struct nouveau_drm *drm = nouveau_drm(nfbdev->dev);
97 	struct nouveau_channel *chan = drm->channel;
98 	uint32_t width, dwords, *data = (uint32_t *)image->data;
99 	uint32_t mask = ~(~0 >> (32 - info->var.bits_per_pixel));
100 	uint32_t *palette = info->pseudo_palette;
101 	int ret;
102 
103 	if (image->depth != 1)
104 		return -ENODEV;
105 
106 	ret = RING_SPACE(chan, 11);
107 	if (ret)
108 		return ret;
109 
110 	width = ALIGN(image->width, 32);
111 	dwords = (width * image->height) >> 5;
112 
113 	BEGIN_NV04(chan, NvSub2D, 0x0814, 2);
114 	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
115 	    info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
116 		OUT_RING(chan, palette[image->bg_color] | mask);
117 		OUT_RING(chan, palette[image->fg_color] | mask);
118 	} else {
119 		OUT_RING(chan, image->bg_color);
120 		OUT_RING(chan, image->fg_color);
121 	}
122 	BEGIN_NV04(chan, NvSub2D, 0x0838, 2);
123 	OUT_RING(chan, image->width);
124 	OUT_RING(chan, image->height);
125 	BEGIN_NV04(chan, NvSub2D, 0x0850, 4);
126 	OUT_RING(chan, 0);
127 	OUT_RING(chan, image->dx);
128 	OUT_RING(chan, 0);
129 	OUT_RING(chan, image->dy);
130 
131 	while (dwords) {
132 		int push = dwords > 2047 ? 2047 : dwords;
133 
134 		ret = RING_SPACE(chan, push + 1);
135 		if (ret)
136 			return ret;
137 
138 		dwords -= push;
139 
140 		BEGIN_NI04(chan, NvSub2D, 0x0860, push);
141 		OUT_RINGp(chan, data, push);
142 		data += push;
143 	}
144 
145 	FIRE_RING(chan);
146 	return 0;
147 }
148 
149 int
nv50_fbcon_accel_init(struct fb_info * info)150 nv50_fbcon_accel_init(struct fb_info *info)
151 {
152 	struct nouveau_fbdev *nfbdev = info->par;
153 	struct nouveau_framebuffer *fb = &nfbdev->nouveau_fb;
154 	struct drm_device *dev = nfbdev->dev;
155 	struct nouveau_drm *drm = nouveau_drm(dev);
156 	struct nouveau_channel *chan = drm->channel;
157 	int ret, format;
158 
159 	switch (info->var.bits_per_pixel) {
160 	case 8:
161 		format = 0xf3;
162 		break;
163 	case 15:
164 		format = 0xf8;
165 		break;
166 	case 16:
167 		format = 0xe8;
168 		break;
169 	case 32:
170 		switch (info->var.transp.length) {
171 		case 0: /* depth 24 */
172 		case 8: /* depth 32, just use 24.. */
173 			format = 0xe6;
174 			break;
175 		case 2: /* depth 30 */
176 			format = 0xd1;
177 			break;
178 		default:
179 			return -EINVAL;
180 		}
181 		break;
182 	default:
183 		return -EINVAL;
184 	}
185 
186 	ret = nvif_object_init(&chan->user, 0x502d, 0x502d, NULL, 0,
187 			       &nfbdev->twod);
188 	if (ret)
189 		return ret;
190 
191 	ret = RING_SPACE(chan, 58);
192 	if (ret) {
193 		nouveau_fbcon_gpu_lockup(info);
194 		return ret;
195 	}
196 
197 	BEGIN_NV04(chan, NvSub2D, 0x0000, 1);
198 	OUT_RING(chan, nfbdev->twod.handle);
199 	BEGIN_NV04(chan, NvSub2D, 0x0184, 3);
200 	OUT_RING(chan, chan->vram.handle);
201 	OUT_RING(chan, chan->vram.handle);
202 	OUT_RING(chan, chan->vram.handle);
203 	BEGIN_NV04(chan, NvSub2D, 0x0290, 1);
204 	OUT_RING(chan, 0);
205 	BEGIN_NV04(chan, NvSub2D, 0x0888, 1);
206 	OUT_RING(chan, 1);
207 	BEGIN_NV04(chan, NvSub2D, 0x02ac, 1);
208 	OUT_RING(chan, 3);
209 	BEGIN_NV04(chan, NvSub2D, 0x02a0, 1);
210 	OUT_RING(chan, 0x55);
211 	BEGIN_NV04(chan, NvSub2D, 0x08c0, 4);
212 	OUT_RING(chan, 0);
213 	OUT_RING(chan, 1);
214 	OUT_RING(chan, 0);
215 	OUT_RING(chan, 1);
216 	BEGIN_NV04(chan, NvSub2D, 0x0580, 2);
217 	OUT_RING(chan, 4);
218 	OUT_RING(chan, format);
219 	BEGIN_NV04(chan, NvSub2D, 0x02e8, 2);
220 	OUT_RING(chan, 2);
221 	OUT_RING(chan, 1);
222 	BEGIN_NV04(chan, NvSub2D, 0x0804, 1);
223 	OUT_RING(chan, format);
224 	BEGIN_NV04(chan, NvSub2D, 0x0800, 1);
225 	OUT_RING(chan, 1);
226 	BEGIN_NV04(chan, NvSub2D, 0x0808, 3);
227 	OUT_RING(chan, 0);
228 	OUT_RING(chan, 0);
229 	OUT_RING(chan, 1);
230 	BEGIN_NV04(chan, NvSub2D, 0x081c, 1);
231 	OUT_RING(chan, 1);
232 	BEGIN_NV04(chan, NvSub2D, 0x0840, 4);
233 	OUT_RING(chan, 0);
234 	OUT_RING(chan, 1);
235 	OUT_RING(chan, 0);
236 	OUT_RING(chan, 1);
237 	BEGIN_NV04(chan, NvSub2D, 0x0200, 2);
238 	OUT_RING(chan, format);
239 	OUT_RING(chan, 1);
240 	BEGIN_NV04(chan, NvSub2D, 0x0214, 5);
241 	OUT_RING(chan, info->fix.line_length);
242 	OUT_RING(chan, info->var.xres_virtual);
243 	OUT_RING(chan, info->var.yres_virtual);
244 	OUT_RING(chan, upper_32_bits(fb->vma.offset));
245 	OUT_RING(chan, lower_32_bits(fb->vma.offset));
246 	BEGIN_NV04(chan, NvSub2D, 0x0230, 2);
247 	OUT_RING(chan, format);
248 	OUT_RING(chan, 1);
249 	BEGIN_NV04(chan, NvSub2D, 0x0244, 5);
250 	OUT_RING(chan, info->fix.line_length);
251 	OUT_RING(chan, info->var.xres_virtual);
252 	OUT_RING(chan, info->var.yres_virtual);
253 	OUT_RING(chan, upper_32_bits(fb->vma.offset));
254 	OUT_RING(chan, lower_32_bits(fb->vma.offset));
255 	FIRE_RING(chan);
256 
257 	return 0;
258 }
259 
260