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 "drmP.h"
26 #include "nouveau_drv.h"
27 #include "nouveau_dma.h"
28 #include "nouveau_ramht.h"
29 #include "nouveau_fbcon.h"
30 #include "nouveau_mm.h"
31 
32 int
nv50_fbcon_fillrect(struct fb_info * info,const struct fb_fillrect * rect)33 nv50_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
34 {
35 	struct nouveau_fbdev *nfbdev = info->par;
36 	struct drm_device *dev = nfbdev->dev;
37 	struct drm_nouveau_private *dev_priv = dev->dev_private;
38 	struct nouveau_channel *chan = dev_priv->channel;
39 	int ret;
40 
41 	ret = RING_SPACE(chan, rect->rop == ROP_COPY ? 7 : 11);
42 	if (ret)
43 		return ret;
44 
45 	if (rect->rop != ROP_COPY) {
46 		BEGIN_RING(chan, NvSub2D, 0x02ac, 1);
47 		OUT_RING(chan, 1);
48 	}
49 	BEGIN_RING(chan, NvSub2D, 0x0588, 1);
50 	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
51 	    info->fix.visual == FB_VISUAL_DIRECTCOLOR)
52 		OUT_RING(chan, ((uint32_t *)info->pseudo_palette)[rect->color]);
53 	else
54 		OUT_RING(chan, rect->color);
55 	BEGIN_RING(chan, NvSub2D, 0x0600, 4);
56 	OUT_RING(chan, rect->dx);
57 	OUT_RING(chan, rect->dy);
58 	OUT_RING(chan, rect->dx + rect->width);
59 	OUT_RING(chan, rect->dy + rect->height);
60 	if (rect->rop != ROP_COPY) {
61 		BEGIN_RING(chan, NvSub2D, 0x02ac, 1);
62 		OUT_RING(chan, 3);
63 	}
64 	FIRE_RING(chan);
65 	return 0;
66 }
67 
68 int
nv50_fbcon_copyarea(struct fb_info * info,const struct fb_copyarea * region)69 nv50_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *region)
70 {
71 	struct nouveau_fbdev *nfbdev = info->par;
72 	struct drm_device *dev = nfbdev->dev;
73 	struct drm_nouveau_private *dev_priv = dev->dev_private;
74 	struct nouveau_channel *chan = dev_priv->channel;
75 	int ret;
76 
77 	ret = RING_SPACE(chan, 12);
78 	if (ret)
79 		return ret;
80 
81 	BEGIN_RING(chan, NvSub2D, 0x0110, 1);
82 	OUT_RING(chan, 0);
83 	BEGIN_RING(chan, NvSub2D, 0x08b0, 4);
84 	OUT_RING(chan, region->dx);
85 	OUT_RING(chan, region->dy);
86 	OUT_RING(chan, region->width);
87 	OUT_RING(chan, region->height);
88 	BEGIN_RING(chan, NvSub2D, 0x08d0, 4);
89 	OUT_RING(chan, 0);
90 	OUT_RING(chan, region->sx);
91 	OUT_RING(chan, 0);
92 	OUT_RING(chan, region->sy);
93 	FIRE_RING(chan);
94 	return 0;
95 }
96 
97 int
nv50_fbcon_imageblit(struct fb_info * info,const struct fb_image * image)98 nv50_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
99 {
100 	struct nouveau_fbdev *nfbdev = info->par;
101 	struct drm_device *dev = nfbdev->dev;
102 	struct drm_nouveau_private *dev_priv = dev->dev_private;
103 	struct nouveau_channel *chan = dev_priv->channel;
104 	uint32_t width, dwords, *data = (uint32_t *)image->data;
105 	uint32_t mask = ~(~0 >> (32 - info->var.bits_per_pixel));
106 	uint32_t *palette = info->pseudo_palette;
107 	int ret;
108 
109 	if (image->depth != 1)
110 		return -ENODEV;
111 
112 	ret = RING_SPACE(chan, 11);
113 	if (ret)
114 		return ret;
115 
116 	width = ALIGN(image->width, 32);
117 	dwords = (width * image->height) >> 5;
118 
119 	BEGIN_RING(chan, NvSub2D, 0x0814, 2);
120 	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
121 	    info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
122 		OUT_RING(chan, palette[image->bg_color] | mask);
123 		OUT_RING(chan, palette[image->fg_color] | mask);
124 	} else {
125 		OUT_RING(chan, image->bg_color);
126 		OUT_RING(chan, image->fg_color);
127 	}
128 	BEGIN_RING(chan, NvSub2D, 0x0838, 2);
129 	OUT_RING(chan, image->width);
130 	OUT_RING(chan, image->height);
131 	BEGIN_RING(chan, NvSub2D, 0x0850, 4);
132 	OUT_RING(chan, 0);
133 	OUT_RING(chan, image->dx);
134 	OUT_RING(chan, 0);
135 	OUT_RING(chan, image->dy);
136 
137 	while (dwords) {
138 		int push = dwords > 2047 ? 2047 : dwords;
139 
140 		ret = RING_SPACE(chan, push + 1);
141 		if (ret)
142 			return ret;
143 
144 		dwords -= push;
145 
146 		BEGIN_RING(chan, NvSub2D, 0x40000860, push);
147 		OUT_RINGp(chan, data, push);
148 		data += push;
149 	}
150 
151 	FIRE_RING(chan);
152 	return 0;
153 }
154 
155 int
nv50_fbcon_accel_init(struct fb_info * info)156 nv50_fbcon_accel_init(struct fb_info *info)
157 {
158 	struct nouveau_fbdev *nfbdev = info->par;
159 	struct drm_device *dev = nfbdev->dev;
160 	struct drm_nouveau_private *dev_priv = dev->dev_private;
161 	struct nouveau_channel *chan = dev_priv->channel;
162 	struct nouveau_framebuffer *fb = &nfbdev->nouveau_fb;
163 	int ret, format;
164 
165 	switch (info->var.bits_per_pixel) {
166 	case 8:
167 		format = 0xf3;
168 		break;
169 	case 15:
170 		format = 0xf8;
171 		break;
172 	case 16:
173 		format = 0xe8;
174 		break;
175 	case 32:
176 		switch (info->var.transp.length) {
177 		case 0: /* depth 24 */
178 		case 8: /* depth 32, just use 24.. */
179 			format = 0xe6;
180 			break;
181 		case 2: /* depth 30 */
182 			format = 0xd1;
183 			break;
184 		default:
185 			return -EINVAL;
186 		}
187 		break;
188 	default:
189 		return -EINVAL;
190 	}
191 
192 	ret = nouveau_gpuobj_gr_new(dev_priv->channel, Nv2D, 0x502d);
193 	if (ret)
194 		return ret;
195 
196 	ret = RING_SPACE(chan, 59);
197 	if (ret) {
198 		nouveau_fbcon_gpu_lockup(info);
199 		return ret;
200 	}
201 
202 	BEGIN_RING(chan, NvSub2D, 0x0000, 1);
203 	OUT_RING(chan, Nv2D);
204 	BEGIN_RING(chan, NvSub2D, 0x0180, 4);
205 	OUT_RING(chan, NvNotify0);
206 	OUT_RING(chan, chan->vram_handle);
207 	OUT_RING(chan, chan->vram_handle);
208 	OUT_RING(chan, chan->vram_handle);
209 	BEGIN_RING(chan, NvSub2D, 0x0290, 1);
210 	OUT_RING(chan, 0);
211 	BEGIN_RING(chan, NvSub2D, 0x0888, 1);
212 	OUT_RING(chan, 1);
213 	BEGIN_RING(chan, NvSub2D, 0x02ac, 1);
214 	OUT_RING(chan, 3);
215 	BEGIN_RING(chan, NvSub2D, 0x02a0, 1);
216 	OUT_RING(chan, 0x55);
217 	BEGIN_RING(chan, NvSub2D, 0x08c0, 4);
218 	OUT_RING(chan, 0);
219 	OUT_RING(chan, 1);
220 	OUT_RING(chan, 0);
221 	OUT_RING(chan, 1);
222 	BEGIN_RING(chan, NvSub2D, 0x0580, 2);
223 	OUT_RING(chan, 4);
224 	OUT_RING(chan, format);
225 	BEGIN_RING(chan, NvSub2D, 0x02e8, 2);
226 	OUT_RING(chan, 2);
227 	OUT_RING(chan, 1);
228 	BEGIN_RING(chan, NvSub2D, 0x0804, 1);
229 	OUT_RING(chan, format);
230 	BEGIN_RING(chan, NvSub2D, 0x0800, 1);
231 	OUT_RING(chan, 1);
232 	BEGIN_RING(chan, NvSub2D, 0x0808, 3);
233 	OUT_RING(chan, 0);
234 	OUT_RING(chan, 0);
235 	OUT_RING(chan, 1);
236 	BEGIN_RING(chan, NvSub2D, 0x081c, 1);
237 	OUT_RING(chan, 1);
238 	BEGIN_RING(chan, NvSub2D, 0x0840, 4);
239 	OUT_RING(chan, 0);
240 	OUT_RING(chan, 1);
241 	OUT_RING(chan, 0);
242 	OUT_RING(chan, 1);
243 	BEGIN_RING(chan, NvSub2D, 0x0200, 2);
244 	OUT_RING(chan, format);
245 	OUT_RING(chan, 1);
246 	BEGIN_RING(chan, NvSub2D, 0x0214, 5);
247 	OUT_RING(chan, info->fix.line_length);
248 	OUT_RING(chan, info->var.xres_virtual);
249 	OUT_RING(chan, info->var.yres_virtual);
250 	OUT_RING(chan, upper_32_bits(fb->vma.offset));
251 	OUT_RING(chan, lower_32_bits(fb->vma.offset));
252 	BEGIN_RING(chan, NvSub2D, 0x0230, 2);
253 	OUT_RING(chan, format);
254 	OUT_RING(chan, 1);
255 	BEGIN_RING(chan, NvSub2D, 0x0244, 5);
256 	OUT_RING(chan, info->fix.line_length);
257 	OUT_RING(chan, info->var.xres_virtual);
258 	OUT_RING(chan, info->var.yres_virtual);
259 	OUT_RING(chan, upper_32_bits(fb->vma.offset));
260 	OUT_RING(chan, lower_32_bits(fb->vma.offset));
261 
262 	return 0;
263 }
264 
265