drivers/gpu/drm/nouveau/nvc0_fbcon.c - linux - Git at Google

 /*
  * Copyright 2010 Red Hat Inc.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
  * to deal in the Software without restriction, including without limitation
  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  * and/or sell copies of the Software, and to permit persons to whom the
  * Software is furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
  * Authors: Ben Skeggs
  */

 #include "nouveau_drm.h"
 #include "nouveau_dma.h"
 #include "nouveau_fbcon.h"

 int
 nvc0_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
 {
 	struct nouveau_fbdev *nfbdev = info->par;
 	struct nouveau_drm *drm = nouveau_drm(nfbdev->dev);
 	struct nouveau_channel *chan = drm->channel;
 	int ret;

 	ret = RING_SPACE(chan, rect->rop == ROP_COPY ? 7 : 11);
 	if (ret)
 		return ret;

 	if (rect->rop != ROP_COPY) {
 		BEGIN_NVC0(chan, NvSub2D, 0x02ac, 1);
 		OUT_RING  (chan, 1);
 	}
 	BEGIN_NVC0(chan, NvSub2D, 0x0588, 1);
 	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
 	    info->fix.visual == FB_VISUAL_DIRECTCOLOR)
 		OUT_RING  (chan, ((uint32_t *)info->pseudo_palette)[rect->color]);
 	else
 		OUT_RING  (chan, rect->color);
 	BEGIN_NVC0(chan, NvSub2D, 0x0600, 4);
 	OUT_RING  (chan, rect->dx);
 	OUT_RING  (chan, rect->dy);
 	OUT_RING  (chan, rect->dx + rect->width);
 	OUT_RING  (chan, rect->dy + rect->height);
 	if (rect->rop != ROP_COPY) {
 		BEGIN_NVC0(chan, NvSub2D, 0x02ac, 1);
 		OUT_RING  (chan, 3);
 	}
 	FIRE_RING(chan);
 	return 0;
 }

 int
 nvc0_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *region)
 {
 	struct nouveau_fbdev *nfbdev = info->par;
 	struct nouveau_drm *drm = nouveau_drm(nfbdev->dev);
 	struct nouveau_channel *chan = drm->channel;
 	int ret;

 	ret = RING_SPACE(chan, 12);
 	if (ret)
 		return ret;

 	BEGIN_NVC0(chan, NvSub2D, 0x0110, 1);
 	OUT_RING  (chan, 0);
 	BEGIN_NVC0(chan, NvSub2D, 0x08b0, 4);
 	OUT_RING  (chan, region->dx);
 	OUT_RING  (chan, region->dy);
 	OUT_RING  (chan, region->width);
 	OUT_RING  (chan, region->height);
 	BEGIN_NVC0(chan, NvSub2D, 0x08d0, 4);
 	OUT_RING  (chan, 0);
 	OUT_RING  (chan, region->sx);
 	OUT_RING  (chan, 0);
 	OUT_RING  (chan, region->sy);
 	FIRE_RING(chan);
 	return 0;
 }

 int
 nvc0_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
 {
 	struct nouveau_fbdev *nfbdev = info->par;
 	struct nouveau_drm *drm = nouveau_drm(nfbdev->dev);
 	struct nouveau_channel *chan = drm->channel;
 	uint32_t width, dwords, *data = (uint32_t *)image->data;
 	uint32_t mask = ~(~0 >> (32 - info->var.bits_per_pixel));
 	uint32_t *palette = info->pseudo_palette;
 	int ret;

 	if (image->depth != 1)
 		return -ENODEV;

 	ret = RING_SPACE(chan, 11);
 	if (ret)
 		return ret;

 	width = ALIGN(image->width, 32);
 	dwords = (width * image->height) >> 5;

 	BEGIN_NVC0(chan, NvSub2D, 0x0814, 2);
 	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
 	    info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
 		OUT_RING  (chan, palette[image->bg_color] | mask);
 		OUT_RING  (chan, palette[image->fg_color] | mask);
 	} else {
 		OUT_RING  (chan, image->bg_color);
 		OUT_RING  (chan, image->fg_color);
 	}
 	BEGIN_NVC0(chan, NvSub2D, 0x0838, 2);
 	OUT_RING  (chan, image->width);
 	OUT_RING  (chan, image->height);
 	BEGIN_NVC0(chan, NvSub2D, 0x0850, 4);
 	OUT_RING  (chan, 0);
 	OUT_RING  (chan, image->dx);
 	OUT_RING  (chan, 0);
 	OUT_RING  (chan, image->dy);

 	while (dwords) {
 		int push = dwords > 2047 ? 2047 : dwords;

 		ret = RING_SPACE(chan, push + 1);
 		if (ret)
 			return ret;

 		dwords -= push;

 		BEGIN_NIC0(chan, NvSub2D, 0x0860, push);
 		OUT_RINGp(chan, data, push);
 		data += push;
 	}

 	FIRE_RING(chan);
 	return 0;
 }

 int
 nvc0_fbcon_accel_init(struct fb_info *info)
 {
 	struct nouveau_fbdev *nfbdev = info->par;
 	struct drm_device *dev = nfbdev->dev;
 	struct nouveau_framebuffer *fb = &nfbdev->nouveau_fb;
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nouveau_channel *chan = drm->channel;
 	int ret, format;

 	ret = nvif_object_init(chan->object, NULL, 0x902d, 0x902d, NULL, 0,
 			       &nfbdev->twod);
 	if (ret)
 		return ret;

 	switch (info->var.bits_per_pixel) {
 	case 8:
 		format = 0xf3;
 		break;
 	case 15:
 		format = 0xf8;
 		break;
 	case 16:
 		format = 0xe8;
 		break;
 	case 32:
 		switch (info->var.transp.length) {
 		case 0: /* depth 24 */
 		case 8: /* depth 32, just use 24.. */
 			format = 0xe6;
 			break;
 		case 2: /* depth 30 */
 			format = 0xd1;
 			break;
 		default:
 			return -EINVAL;
 		}
 		break;
 	default:
 		return -EINVAL;
 	}

 	ret = RING_SPACE(chan, 58);
 	if (ret) {
 		WARN_ON(1);
 		nouveau_fbcon_gpu_lockup(info);
 		return ret;
 	}

 	BEGIN_NVC0(chan, NvSub2D, 0x0000, 1);
 	OUT_RING  (chan, nfbdev->twod.handle);
 	BEGIN_NVC0(chan, NvSub2D, 0x0290, 1);
 	OUT_RING  (chan, 0);
 	BEGIN_NVC0(chan, NvSub2D, 0x0888, 1);
 	OUT_RING  (chan, 1);
 	BEGIN_NVC0(chan, NvSub2D, 0x02ac, 1);
 	OUT_RING  (chan, 3);
 	BEGIN_NVC0(chan, NvSub2D, 0x02a0, 1);
 	OUT_RING  (chan, 0x55);
 	BEGIN_NVC0(chan, NvSub2D, 0x08c0, 4);
 	OUT_RING  (chan, 0);
 	OUT_RING  (chan, 1);
 	OUT_RING  (chan, 0);
 	OUT_RING  (chan, 1);
 	BEGIN_NVC0(chan, NvSub2D, 0x0580, 2);
 	OUT_RING  (chan, 4);
 	OUT_RING  (chan, format);
 	BEGIN_NVC0(chan, NvSub2D, 0x02e8, 2);
 	OUT_RING  (chan, 2);
 	OUT_RING  (chan, 1);

 	BEGIN_NVC0(chan, NvSub2D, 0x0804, 1);
 	OUT_RING  (chan, format);
 	BEGIN_NVC0(chan, NvSub2D, 0x0800, 1);
 	OUT_RING  (chan, 1);
 	BEGIN_NVC0(chan, NvSub2D, 0x0808, 3);
 	OUT_RING  (chan, 0);
 	OUT_RING  (chan, 0);
 	OUT_RING  (chan, 1);
 	BEGIN_NVC0(chan, NvSub2D, 0x081c, 1);
 	OUT_RING  (chan, 1);
 	BEGIN_NVC0(chan, NvSub2D, 0x0840, 4);
 	OUT_RING  (chan, 0);
 	OUT_RING  (chan, 1);
 	OUT_RING  (chan, 0);
 	OUT_RING  (chan, 1);
 	BEGIN_NVC0(chan, NvSub2D, 0x0200, 10);
 	OUT_RING  (chan, format);
 	OUT_RING  (chan, 1);
 	OUT_RING  (chan, 0);
 	OUT_RING  (chan, 1);
 	OUT_RING  (chan, 0);
 	OUT_RING  (chan, info->fix.line_length);
 	OUT_RING  (chan, info->var.xres_virtual);
 	OUT_RING  (chan, info->var.yres_virtual);
 	OUT_RING  (chan, upper_32_bits(fb->vma.offset));
 	OUT_RING  (chan, lower_32_bits(fb->vma.offset));
 	BEGIN_NVC0(chan, NvSub2D, 0x0230, 10);
 	OUT_RING  (chan, format);
 	OUT_RING  (chan, 1);
 	OUT_RING  (chan, 0);
 	OUT_RING  (chan, 1);
 	OUT_RING  (chan, 0);
 	OUT_RING  (chan, info->fix.line_length);
 	OUT_RING  (chan, info->var.xres_virtual);
 	OUT_RING  (chan, info->var.yres_virtual);
 	OUT_RING  (chan, upper_32_bits(fb->vma.offset));
 	OUT_RING  (chan, lower_32_bits(fb->vma.offset));
 	FIRE_RING (chan);

 	return 0;
 }
	/*
	* Copyright 2010 Red Hat Inc.
	*
	* Permission is hereby granted, free of charge, to any person obtaining a
	* copy of this software and associated documentation files (the "Software"),
	* to deal in the Software without restriction, including without limitation
	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	* and/or sell copies of the Software, and to permit persons to whom the
	* Software is furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included in
	* all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	* OTHER DEALINGS IN THE SOFTWARE.
	*
	* Authors: Ben Skeggs
	*/

	#include "nouveau_drm.h"
	#include "nouveau_dma.h"
	#include "nouveau_fbcon.h"

	int
	nvc0_fbcon_fillrect(struct fb_info info, const struct fb_fillrect rect)
	{
	struct nouveau_fbdev *nfbdev = info->par;
	struct nouveau_drm *drm = nouveau_drm(nfbdev->dev);
	struct nouveau_channel *chan = drm->channel;
	int ret;

	ret = RING_SPACE(chan, rect->rop == ROP_COPY ? 7 : 11);
	if (ret)
	return ret;

	if (rect->rop != ROP_COPY) {
	BEGIN_NVC0(chan, NvSub2D, 0x02ac, 1);
	OUT_RING (chan, 1);
	}
	BEGIN_NVC0(chan, NvSub2D, 0x0588, 1);
	if (info->fix.visual == FB_VISUAL_TRUECOLOR \|\|
	info->fix.visual == FB_VISUAL_DIRECTCOLOR)
	OUT_RING (chan, ((uint32_t *)info->pseudo_palette)[rect->color]);
	else
	OUT_RING (chan, rect->color);
	BEGIN_NVC0(chan, NvSub2D, 0x0600, 4);
	OUT_RING (chan, rect->dx);
	OUT_RING (chan, rect->dy);
	OUT_RING (chan, rect->dx + rect->width);
	OUT_RING (chan, rect->dy + rect->height);
	if (rect->rop != ROP_COPY) {
	BEGIN_NVC0(chan, NvSub2D, 0x02ac, 1);
	OUT_RING (chan, 3);
	}
	FIRE_RING(chan);
	return 0;
	}

	int
	nvc0_fbcon_copyarea(struct fb_info info, const struct fb_copyarea region)
	{
	struct nouveau_fbdev *nfbdev = info->par;
	struct nouveau_drm *drm = nouveau_drm(nfbdev->dev);
	struct nouveau_channel *chan = drm->channel;
	int ret;

	ret = RING_SPACE(chan, 12);
	if (ret)
	return ret;

	BEGIN_NVC0(chan, NvSub2D, 0x0110, 1);
	OUT_RING (chan, 0);
	BEGIN_NVC0(chan, NvSub2D, 0x08b0, 4);
	OUT_RING (chan, region->dx);
	OUT_RING (chan, region->dy);
	OUT_RING (chan, region->width);
	OUT_RING (chan, region->height);
	BEGIN_NVC0(chan, NvSub2D, 0x08d0, 4);
	OUT_RING (chan, 0);
	OUT_RING (chan, region->sx);
	OUT_RING (chan, 0);
	OUT_RING (chan, region->sy);
	FIRE_RING(chan);
	return 0;
	}

	int
	nvc0_fbcon_imageblit(struct fb_info info, const struct fb_image image)
	{
	struct nouveau_fbdev *nfbdev = info->par;
	struct nouveau_drm *drm = nouveau_drm(nfbdev->dev);
	struct nouveau_channel *chan = drm->channel;
	uint32_t width, dwords, data = (uint32_t )image->data;
	uint32_t mask = ~(~0 >> (32 - info->var.bits_per_pixel));
	uint32_t *palette = info->pseudo_palette;
	int ret;

	if (image->depth != 1)
	return -ENODEV;

	ret = RING_SPACE(chan, 11);
	if (ret)
	return ret;

	width = ALIGN(image->width, 32);
	dwords = (width * image->height) >> 5;

	BEGIN_NVC0(chan, NvSub2D, 0x0814, 2);
	if (info->fix.visual == FB_VISUAL_TRUECOLOR \|\|
	info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
	OUT_RING (chan, palette[image->bg_color] \| mask);
	OUT_RING (chan, palette[image->fg_color] \| mask);
	} else {
	OUT_RING (chan, image->bg_color);
	OUT_RING (chan, image->fg_color);
	}
	BEGIN_NVC0(chan, NvSub2D, 0x0838, 2);
	OUT_RING (chan, image->width);
	OUT_RING (chan, image->height);
	BEGIN_NVC0(chan, NvSub2D, 0x0850, 4);
	OUT_RING (chan, 0);
	OUT_RING (chan, image->dx);
	OUT_RING (chan, 0);
	OUT_RING (chan, image->dy);

	while (dwords) {
	int push = dwords > 2047 ? 2047 : dwords;

	ret = RING_SPACE(chan, push + 1);
	if (ret)
	return ret;

	dwords -= push;

	BEGIN_NIC0(chan, NvSub2D, 0x0860, push);
	OUT_RINGp(chan, data, push);
	data += push;
	}

	FIRE_RING(chan);
	return 0;
	}

	int
	nvc0_fbcon_accel_init(struct fb_info *info)
	{
	struct nouveau_fbdev *nfbdev = info->par;
	struct drm_device *dev = nfbdev->dev;
	struct nouveau_framebuffer *fb = &nfbdev->nouveau_fb;
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_channel *chan = drm->channel;
	int ret, format;

	ret = nvif_object_init(chan->object, NULL, 0x902d, 0x902d, NULL, 0,
	&nfbdev->twod);
	if (ret)
	return ret;

	switch (info->var.bits_per_pixel) {
	case 8:
	format = 0xf3;
	break;
	case 15:
	format = 0xf8;
	break;
	case 16:
	format = 0xe8;
	break;
	case 32:
	switch (info->var.transp.length) {
	case 0: /* depth 24 */
	case 8: /* depth 32, just use 24.. */
	format = 0xe6;
	break;
	case 2: /* depth 30 */
	format = 0xd1;
	break;
	default:
	return -EINVAL;
	}
	break;
	default:
	return -EINVAL;
	}

	ret = RING_SPACE(chan, 58);
	if (ret) {
	WARN_ON(1);
	nouveau_fbcon_gpu_lockup(info);
	return ret;
	}

	BEGIN_NVC0(chan, NvSub2D, 0x0000, 1);
	OUT_RING (chan, nfbdev->twod.handle);
	BEGIN_NVC0(chan, NvSub2D, 0x0290, 1);
	OUT_RING (chan, 0);
	BEGIN_NVC0(chan, NvSub2D, 0x0888, 1);
	OUT_RING (chan, 1);
	BEGIN_NVC0(chan, NvSub2D, 0x02ac, 1);
	OUT_RING (chan, 3);
	BEGIN_NVC0(chan, NvSub2D, 0x02a0, 1);
	OUT_RING (chan, 0x55);
	BEGIN_NVC0(chan, NvSub2D, 0x08c0, 4);
	OUT_RING (chan, 0);
	OUT_RING (chan, 1);
	OUT_RING (chan, 0);
	OUT_RING (chan, 1);
	BEGIN_NVC0(chan, NvSub2D, 0x0580, 2);
	OUT_RING (chan, 4);
	OUT_RING (chan, format);
	BEGIN_NVC0(chan, NvSub2D, 0x02e8, 2);
	OUT_RING (chan, 2);
	OUT_RING (chan, 1);

	BEGIN_NVC0(chan, NvSub2D, 0x0804, 1);
	OUT_RING (chan, format);
	BEGIN_NVC0(chan, NvSub2D, 0x0800, 1);
	OUT_RING (chan, 1);
	BEGIN_NVC0(chan, NvSub2D, 0x0808, 3);
	OUT_RING (chan, 0);
	OUT_RING (chan, 0);
	OUT_RING (chan, 1);
	BEGIN_NVC0(chan, NvSub2D, 0x081c, 1);
	OUT_RING (chan, 1);
	BEGIN_NVC0(chan, NvSub2D, 0x0840, 4);
	OUT_RING (chan, 0);
	OUT_RING (chan, 1);
	OUT_RING (chan, 0);
	OUT_RING (chan, 1);
	BEGIN_NVC0(chan, NvSub2D, 0x0200, 10);
	OUT_RING (chan, format);
	OUT_RING (chan, 1);
	OUT_RING (chan, 0);
	OUT_RING (chan, 1);
	OUT_RING (chan, 0);
	OUT_RING (chan, info->fix.line_length);
	OUT_RING (chan, info->var.xres_virtual);
	OUT_RING (chan, info->var.yres_virtual);
	OUT_RING (chan, upper_32_bits(fb->vma.offset));
	OUT_RING (chan, lower_32_bits(fb->vma.offset));
	BEGIN_NVC0(chan, NvSub2D, 0x0230, 10);
	OUT_RING (chan, format);
	OUT_RING (chan, 1);
	OUT_RING (chan, 0);
	OUT_RING (chan, 1);
	OUT_RING (chan, 0);
	OUT_RING (chan, info->fix.line_length);
	OUT_RING (chan, info->var.xres_virtual);
	OUT_RING (chan, info->var.yres_virtual);
	OUT_RING (chan, upper_32_bits(fb->vma.offset));
	OUT_RING (chan, lower_32_bits(fb->vma.offset));
	FIRE_RING (chan);

	return 0;
	}