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      1 /*	$NetBSD: nouveau_nv04_fbcon.c,v 1.4 2021/12/18 23:45:32 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2009 Ben Skeggs
      5  * Copyright 2008 Stuart Bennett
      6  *
      7  * Permission is hereby granted, free of charge, to any person obtaining a
      8  * copy of this software and associated documentation files (the "Software"),
      9  * to deal in the Software without restriction, including without limitation
     10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     11  * and/or sell copies of the Software, and to permit persons to whom the
     12  * Software is furnished to do so, subject to the following conditions:
     13  *
     14  * The above copyright notice and this permission notice (including the next
     15  * paragraph) shall be included in all copies or substantial portions of the
     16  * Software.
     17  *
     18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     21  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     23  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     24  * DEALINGS IN THE SOFTWARE.
     25  */
     26 
     27 #include <sys/cdefs.h>
     28 __KERNEL_RCSID(0, "$NetBSD: nouveau_nv04_fbcon.c,v 1.4 2021/12/18 23:45:32 riastradh Exp $");
     29 
     30 #include "nouveau_drv.h"
     31 #include "nouveau_dma.h"
     32 #include "nouveau_fbcon.h"
     33 
     34 int
     35 nv04_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *region)
     36 {
     37 	struct nouveau_fbdev *nfbdev = info->par;
     38 	struct nouveau_drm *drm = nouveau_drm(nfbdev->helper.dev);
     39 	struct nouveau_channel *chan = drm->channel;
     40 	int ret;
     41 
     42 	ret = RING_SPACE(chan, 4);
     43 	if (ret)
     44 		return ret;
     45 
     46 	BEGIN_NV04(chan, NvSubImageBlit, 0x0300, 3);
     47 	OUT_RING(chan, (region->sy << 16) | region->sx);
     48 	OUT_RING(chan, (region->dy << 16) | region->dx);
     49 	OUT_RING(chan, (region->height << 16) | region->width);
     50 	FIRE_RING(chan);
     51 	return 0;
     52 }
     53 
     54 int
     55 nv04_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
     56 {
     57 	struct nouveau_fbdev *nfbdev = info->par;
     58 	struct nouveau_drm *drm = nouveau_drm(nfbdev->helper.dev);
     59 	struct nouveau_channel *chan = drm->channel;
     60 	int ret;
     61 
     62 	ret = RING_SPACE(chan, 7);
     63 	if (ret)
     64 		return ret;
     65 
     66 	BEGIN_NV04(chan, NvSubGdiRect, 0x02fc, 1);
     67 	OUT_RING(chan, (rect->rop != ROP_COPY) ? 1 : 3);
     68 	BEGIN_NV04(chan, NvSubGdiRect, 0x03fc, 1);
     69 	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
     70 	    info->fix.visual == FB_VISUAL_DIRECTCOLOR)
     71 		OUT_RING(chan, ((uint32_t *)info->pseudo_palette)[rect->color]);
     72 	else
     73 		OUT_RING(chan, rect->color);
     74 	BEGIN_NV04(chan, NvSubGdiRect, 0x0400, 2);
     75 	OUT_RING(chan, (rect->dx << 16) | rect->dy);
     76 	OUT_RING(chan, (rect->width << 16) | rect->height);
     77 	FIRE_RING(chan);
     78 	return 0;
     79 }
     80 
     81 int
     82 nv04_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
     83 {
     84 	struct nouveau_fbdev *nfbdev = info->par;
     85 	struct nouveau_drm *drm = nouveau_drm(nfbdev->helper.dev);
     86 	struct nouveau_channel *chan = drm->channel;
     87 	uint32_t fg;
     88 	uint32_t bg;
     89 	uint32_t dsize;
     90 	uint32_t *data = (uint32_t *)image->data;
     91 	int ret;
     92 
     93 	if (image->depth != 1)
     94 		return -ENODEV;
     95 
     96 	ret = RING_SPACE(chan, 8);
     97 	if (ret)
     98 		return ret;
     99 
    100 	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
    101 	    info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
    102 		fg = ((uint32_t *) info->pseudo_palette)[image->fg_color];
    103 		bg = ((uint32_t *) info->pseudo_palette)[image->bg_color];
    104 	} else {
    105 		fg = image->fg_color;
    106 		bg = image->bg_color;
    107 	}
    108 
    109 	BEGIN_NV04(chan, NvSubGdiRect, 0x0be4, 7);
    110 	OUT_RING(chan, (image->dy << 16) | (image->dx & 0xffff));
    111 	OUT_RING(chan, ((image->dy + image->height) << 16) |
    112 			 ((image->dx + image->width) & 0xffff));
    113 	OUT_RING(chan, bg);
    114 	OUT_RING(chan, fg);
    115 	OUT_RING(chan, (image->height << 16) | ALIGN(image->width, 8));
    116 	OUT_RING(chan, (image->height << 16) | image->width);
    117 	OUT_RING(chan, (image->dy << 16) | (image->dx & 0xffff));
    118 
    119 	dsize = ALIGN(ALIGN(image->width, 8) * image->height, 32) >> 5;
    120 	while (dsize) {
    121 		int iter_len = dsize > 128 ? 128 : dsize;
    122 
    123 		ret = RING_SPACE(chan, iter_len + 1);
    124 		if (ret)
    125 			return ret;
    126 
    127 		BEGIN_NV04(chan, NvSubGdiRect, 0x0c00, iter_len);
    128 		OUT_RINGp(chan, data, iter_len);
    129 		data += iter_len;
    130 		dsize -= iter_len;
    131 	}
    132 
    133 	FIRE_RING(chan);
    134 	return 0;
    135 }
    136 
    137 int
    138 nv04_fbcon_accel_init(struct fb_info *info)
    139 {
    140 	struct nouveau_fbdev *nfbdev = info->par;
    141 	struct drm_device *dev = nfbdev->helper.dev;
    142 	struct nouveau_drm *drm = nouveau_drm(dev);
    143 	struct nouveau_channel *chan = drm->channel;
    144 	struct nvif_device *device = &drm->client.device;
    145 	int surface_fmt, pattern_fmt, rect_fmt;
    146 	int ret;
    147 
    148 	switch (info->var.bits_per_pixel) {
    149 	case 8:
    150 		surface_fmt = 1;
    151 		pattern_fmt = 3;
    152 		rect_fmt = 3;
    153 		break;
    154 	case 16:
    155 		surface_fmt = 4;
    156 		pattern_fmt = 1;
    157 		rect_fmt = 1;
    158 		break;
    159 	case 32:
    160 		switch (info->var.transp.length) {
    161 		case 0: /* depth 24 */
    162 		case 8: /* depth 32 */
    163 			break;
    164 		default:
    165 			return -EINVAL;
    166 		}
    167 
    168 		surface_fmt = 6;
    169 		pattern_fmt = 3;
    170 		rect_fmt = 3;
    171 		break;
    172 	default:
    173 		return -EINVAL;
    174 	}
    175 
    176 	ret = nvif_object_init(&chan->user, 0x0062,
    177 			       device->info.family >= NV_DEVICE_INFO_V0_CELSIUS ?
    178 			       0x0062 : 0x0042, NULL, 0, &nfbdev->surf2d);
    179 	if (ret)
    180 		return ret;
    181 
    182 	ret = nvif_object_init(&chan->user, 0x0019, 0x0019, NULL, 0,
    183 			       &nfbdev->clip);
    184 	if (ret)
    185 		return ret;
    186 
    187 	ret = nvif_object_init(&chan->user, 0x0043, 0x0043, NULL, 0,
    188 			       &nfbdev->rop);
    189 	if (ret)
    190 		return ret;
    191 
    192 	ret = nvif_object_init(&chan->user, 0x0044, 0x0044, NULL, 0,
    193 			       &nfbdev->patt);
    194 	if (ret)
    195 		return ret;
    196 
    197 	ret = nvif_object_init(&chan->user, 0x004a, 0x004a, NULL, 0,
    198 			       &nfbdev->gdi);
    199 	if (ret)
    200 		return ret;
    201 
    202 	ret = nvif_object_init(&chan->user, 0x005f,
    203 			       device->info.chipset >= 0x11 ? 0x009f : 0x005f,
    204 			       NULL, 0, &nfbdev->blit);
    205 	if (ret)
    206 		return ret;
    207 
    208 	if (RING_SPACE(chan, 49 + (device->info.chipset >= 0x11 ? 4 : 0))) {
    209 		nouveau_fbcon_gpu_lockup(info);
    210 		return 0;
    211 	}
    212 
    213 	BEGIN_NV04(chan, NvSubCtxSurf2D, 0x0000, 1);
    214 	OUT_RING(chan, nfbdev->surf2d.handle);
    215 	BEGIN_NV04(chan, NvSubCtxSurf2D, 0x0184, 2);
    216 	OUT_RING(chan, chan->vram.handle);
    217 	OUT_RING(chan, chan->vram.handle);
    218 	BEGIN_NV04(chan, NvSubCtxSurf2D, 0x0300, 4);
    219 	OUT_RING(chan, surface_fmt);
    220 	OUT_RING(chan, info->fix.line_length | (info->fix.line_length << 16));
    221 	OUT_RING(chan, info->fix.smem_start - dev->mode_config.fb_base);
    222 	OUT_RING(chan, info->fix.smem_start - dev->mode_config.fb_base);
    223 
    224 	BEGIN_NV04(chan, NvSubCtxSurf2D, 0x0000, 1);
    225 	OUT_RING(chan, nfbdev->rop.handle);
    226 	BEGIN_NV04(chan, NvSubCtxSurf2D, 0x0300, 1);
    227 	OUT_RING(chan, 0x55);
    228 
    229 	BEGIN_NV04(chan, NvSubCtxSurf2D, 0x0000, 1);
    230 	OUT_RING(chan, nfbdev->patt.handle);
    231 	BEGIN_NV04(chan, NvSubCtxSurf2D, 0x0300, 8);
    232 	OUT_RING(chan, pattern_fmt);
    233 #ifdef __BIG_ENDIAN
    234 	OUT_RING(chan, 2);
    235 #else
    236 	OUT_RING(chan, 1);
    237 #endif
    238 	OUT_RING(chan, 0);
    239 	OUT_RING(chan, 1);
    240 	OUT_RING(chan, ~0);
    241 	OUT_RING(chan, ~0);
    242 	OUT_RING(chan, ~0);
    243 	OUT_RING(chan, ~0);
    244 
    245 	BEGIN_NV04(chan, NvSubCtxSurf2D, 0x0000, 1);
    246 	OUT_RING(chan, nfbdev->clip.handle);
    247 	BEGIN_NV04(chan, NvSubCtxSurf2D, 0x0300, 2);
    248 	OUT_RING(chan, 0);
    249 	OUT_RING(chan, (info->var.yres_virtual << 16) | info->var.xres_virtual);
    250 
    251 	BEGIN_NV04(chan, NvSubImageBlit, 0x0000, 1);
    252 	OUT_RING(chan, nfbdev->blit.handle);
    253 	BEGIN_NV04(chan, NvSubImageBlit, 0x019c, 1);
    254 	OUT_RING(chan, nfbdev->surf2d.handle);
    255 	BEGIN_NV04(chan, NvSubImageBlit, 0x02fc, 1);
    256 	OUT_RING(chan, 3);
    257 	if (device->info.chipset >= 0x11 /*XXX: oclass == 0x009f*/) {
    258 		BEGIN_NV04(chan, NvSubImageBlit, 0x0120, 3);
    259 		OUT_RING(chan, 0);
    260 		OUT_RING(chan, 1);
    261 		OUT_RING(chan, 2);
    262 	}
    263 
    264 	BEGIN_NV04(chan, NvSubGdiRect, 0x0000, 1);
    265 	OUT_RING(chan, nfbdev->gdi.handle);
    266 	BEGIN_NV04(chan, NvSubGdiRect, 0x0198, 1);
    267 	OUT_RING(chan, nfbdev->surf2d.handle);
    268 	BEGIN_NV04(chan, NvSubGdiRect, 0x0188, 2);
    269 	OUT_RING(chan, nfbdev->patt.handle);
    270 	OUT_RING(chan, nfbdev->rop.handle);
    271 	BEGIN_NV04(chan, NvSubGdiRect, 0x0304, 1);
    272 	OUT_RING(chan, 1);
    273 	BEGIN_NV04(chan, NvSubGdiRect, 0x0300, 1);
    274 	OUT_RING(chan, rect_fmt);
    275 	BEGIN_NV04(chan, NvSubGdiRect, 0x02fc, 1);
    276 	OUT_RING(chan, 3);
    277 
    278 	FIRE_RING(chan);
    279 
    280 	return 0;
    281 }
    282 
    283