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
 30int
 31nv50_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
 65int
 66nv50_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
 93int
 94nv50_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
148int
149nv50_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