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_drv.h"
26 #include "nouveau_dma.h"
27 #include "nouveau_fbcon.h"
28 #include "nouveau_vmm.h"
29 
30 int
nv50_fbcon_fillrect(struct fb_info * info,const struct fb_fillrect * rect)31 nv50_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
32 {
33 	struct nouveau_fbdev *nfbdev = info->par;
34 	struct nouveau_drm *drm = nouveau_drm(nfbdev->helper.dev);
35 	struct nouveau_channel *chan = drm->channel;
36 	int ret;
37 
38 	ret = RING_SPACE(chan, rect->rop == ROP_COPY ? 7 : 11);
39 	if (ret)
40 		return ret;
41 
42 	if (rect->rop != ROP_COPY) {
43 		BEGIN_NV04(chan, NvSub2D, 0x02ac, 1);
44 		OUT_RING(chan, 1);
45 	}
46 	BEGIN_NV04(chan, NvSub2D, 0x0588, 1);
47 	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
48 	    info->fix.visual == FB_VISUAL_DIRECTCOLOR)
49 		OUT_RING(chan, ((uint32_t *)info->pseudo_palette)[rect->color]);
50 	else
51 		OUT_RING(chan, rect->color);
52 	BEGIN_NV04(chan, NvSub2D, 0x0600, 4);
53 	OUT_RING(chan, rect->dx);
54 	OUT_RING(chan, rect->dy);
55 	OUT_RING(chan, rect->dx + rect->width);
56 	OUT_RING(chan, rect->dy + rect->height);
57 	if (rect->rop != ROP_COPY) {
58 		BEGIN_NV04(chan, NvSub2D, 0x02ac, 1);
59 		OUT_RING(chan, 3);
60 	}
61 	FIRE_RING(chan);
62 	return 0;
63 }
64 
65 int
nv50_fbcon_copyarea(struct fb_info * info,const struct fb_copyarea * region)66 nv50_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *region)
67 {
68 	struct nouveau_fbdev *nfbdev = info->par;
69 	struct nouveau_drm *drm = nouveau_drm(nfbdev->helper.dev);
70 	struct nouveau_channel *chan = drm->channel;
71 	int ret;
72 
73 	ret = RING_SPACE(chan, 12);
74 	if (ret)
75 		return ret;
76 
77 	BEGIN_NV04(chan, NvSub2D, 0x0110, 1);
78 	OUT_RING(chan, 0);
79 	BEGIN_NV04(chan, NvSub2D, 0x08b0, 4);
80 	OUT_RING(chan, region->dx);
81 	OUT_RING(chan, region->dy);
82 	OUT_RING(chan, region->width);
83 	OUT_RING(chan, region->height);
84 	BEGIN_NV04(chan, NvSub2D, 0x08d0, 4);
85 	OUT_RING(chan, 0);
86 	OUT_RING(chan, region->sx);
87 	OUT_RING(chan, 0);
88 	OUT_RING(chan, region->sy);
89 	FIRE_RING(chan);
90 	return 0;
91 }
92 
93 int
nv50_fbcon_imageblit(struct fb_info * info,const struct fb_image * image)94 nv50_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
95 {
96 	struct nouveau_fbdev *nfbdev = info->par;
97 	struct nouveau_drm *drm = nouveau_drm(nfbdev->helper.dev);
98 	struct nouveau_channel *chan = drm->channel;
99 	uint32_t dwords, *data = (uint32_t *)image->data;
100 	uint32_t mask = ~(~0 >> (32 - info->var.bits_per_pixel));
101 	uint32_t *palette = info->pseudo_palette;
102 	int ret;
103 
104 	if (image->depth != 1)
105 		return -ENODEV;
106 
107 	ret = RING_SPACE(chan, 11);
108 	if (ret)
109 		return ret;
110 
111 	BEGIN_NV04(chan, NvSub2D, 0x0814, 2);
112 	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
113 	    info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
114 		OUT_RING(chan, palette[image->bg_color] | mask);
115 		OUT_RING(chan, palette[image->fg_color] | mask);
116 	} else {
117 		OUT_RING(chan, image->bg_color);
118 		OUT_RING(chan, image->fg_color);
119 	}
120 	BEGIN_NV04(chan, NvSub2D, 0x0838, 2);
121 	OUT_RING(chan, image->width);
122 	OUT_RING(chan, image->height);
123 	BEGIN_NV04(chan, NvSub2D, 0x0850, 4);
124 	OUT_RING(chan, 0);
125 	OUT_RING(chan, image->dx);
126 	OUT_RING(chan, 0);
127 	OUT_RING(chan, image->dy);
128 
129 	dwords = ALIGN(ALIGN(image->width, 8) * image->height, 32) >> 5;
130 	while (dwords) {
131 		int push = dwords > 2047 ? 2047 : dwords;
132 
133 		ret = RING_SPACE(chan, push + 1);
134 		if (ret)
135 			return ret;
136 
137 		dwords -= push;
138 
139 		BEGIN_NI04(chan, NvSub2D, 0x0860, push);
140 		OUT_RINGp(chan, data, push);
141 		data += push;
142 	}
143 
144 	FIRE_RING(chan);
145 	return 0;
146 }
147 
148 int
nv50_fbcon_accel_init(struct fb_info * info)149 nv50_fbcon_accel_init(struct fb_info *info)
150 {
151 	struct nouveau_fbdev *nfbdev = info->par;
152 	struct nouveau_framebuffer *fb = nouveau_framebuffer(nfbdev->helper.fb);
153 	struct drm_device *dev = nfbdev->helper.dev;
154 	struct nouveau_drm *drm = nouveau_drm(dev);
155 	struct nouveau_channel *chan = drm->channel;
156 	int ret, format;
157 
158 	switch (info->var.bits_per_pixel) {
159 	case 8:
160 		format = 0xf3;
161 		break;
162 	case 15:
163 		format = 0xf8;
164 		break;
165 	case 16:
166 		format = 0xe8;
167 		break;
168 	case 32:
169 		switch (info->var.transp.length) {
170 		case 0: /* depth 24 */
171 		case 8: /* depth 32, just use 24.. */
172 			format = 0xe6;
173 			break;
174 		case 2: /* depth 30 */
175 			format = 0xd1;
176 			break;
177 		default:
178 			return -EINVAL;
179 		}
180 		break;
181 	default:
182 		return -EINVAL;
183 	}
184 
185 	ret = nvif_object_init(&chan->user, 0x502d, 0x502d, NULL, 0,
186 			       &nfbdev->twod);
187 	if (ret)
188 		return ret;
189 
190 	ret = RING_SPACE(chan, 58);
191 	if (ret) {
192 		nouveau_fbcon_gpu_lockup(info);
193 		return ret;
194 	}
195 
196 	BEGIN_NV04(chan, NvSub2D, 0x0000, 1);
197 	OUT_RING(chan, nfbdev->twod.handle);
198 	BEGIN_NV04(chan, NvSub2D, 0x0184, 3);
199 	OUT_RING(chan, chan->vram.handle);
200 	OUT_RING(chan, chan->vram.handle);
201 	OUT_RING(chan, chan->vram.handle);
202 	BEGIN_NV04(chan, NvSub2D, 0x0290, 1);
203 	OUT_RING(chan, 0);
204 	BEGIN_NV04(chan, NvSub2D, 0x0888, 1);
205 	OUT_RING(chan, 1);
206 	BEGIN_NV04(chan, NvSub2D, 0x02ac, 1);
207 	OUT_RING(chan, 3);
208 	BEGIN_NV04(chan, NvSub2D, 0x02a0, 1);
209 	OUT_RING(chan, 0x55);
210 	BEGIN_NV04(chan, NvSub2D, 0x08c0, 4);
211 	OUT_RING(chan, 0);
212 	OUT_RING(chan, 1);
213 	OUT_RING(chan, 0);
214 	OUT_RING(chan, 1);
215 	BEGIN_NV04(chan, NvSub2D, 0x0580, 2);
216 	OUT_RING(chan, 4);
217 	OUT_RING(chan, format);
218 	BEGIN_NV04(chan, NvSub2D, 0x02e8, 2);
219 	OUT_RING(chan, 2);
220 	OUT_RING(chan, 1);
221 	BEGIN_NV04(chan, NvSub2D, 0x0804, 1);
222 	OUT_RING(chan, format);
223 	BEGIN_NV04(chan, NvSub2D, 0x0800, 1);
224 	OUT_RING(chan, 1);
225 	BEGIN_NV04(chan, NvSub2D, 0x0808, 3);
226 	OUT_RING(chan, 0);
227 	OUT_RING(chan, 0);
228 	OUT_RING(chan, 1);
229 	BEGIN_NV04(chan, NvSub2D, 0x081c, 1);
230 	OUT_RING(chan, 1);
231 	BEGIN_NV04(chan, NvSub2D, 0x0840, 4);
232 	OUT_RING(chan, 0);
233 	OUT_RING(chan, 1);
234 	OUT_RING(chan, 0);
235 	OUT_RING(chan, 1);
236 	BEGIN_NV04(chan, NvSub2D, 0x0200, 2);
237 	OUT_RING(chan, format);
238 	OUT_RING(chan, 1);
239 	BEGIN_NV04(chan, NvSub2D, 0x0214, 5);
240 	OUT_RING(chan, info->fix.line_length);
241 	OUT_RING(chan, info->var.xres_virtual);
242 	OUT_RING(chan, info->var.yres_virtual);
243 	OUT_RING(chan, upper_32_bits(fb->vma->addr));
244 	OUT_RING(chan, lower_32_bits(fb->vma->addr));
245 	BEGIN_NV04(chan, NvSub2D, 0x0230, 2);
246 	OUT_RING(chan, format);
247 	OUT_RING(chan, 1);
248 	BEGIN_NV04(chan, NvSub2D, 0x0244, 5);
249 	OUT_RING(chan, info->fix.line_length);
250 	OUT_RING(chan, info->var.xres_virtual);
251 	OUT_RING(chan, info->var.yres_virtual);
252 	OUT_RING(chan, upper_32_bits(fb->vma->addr));
253 	OUT_RING(chan, lower_32_bits(fb->vma->addr));
254 	FIRE_RING(chan);
255 
256 	return 0;
257 }
258 
259