[deliverable/linux.git] / drivers / gpu / drm / nouveau / nouveau_fbcon.c

/*
 * Copyright © 2007 David Airlie
 *
 * 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 (including the next
 * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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:
 *     David Airlie
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/tty.h>
#include <linux/sysrq.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/screen_info.h>
#include <linux/vga_switcheroo.h>
#include <linux/console.h>

#include "drmP.h"
#include "drm.h"
#include "drm_crtc.h"
#include "drm_crtc_helper.h"
#include "drm_fb_helper.h"

#include "nouveau_drm.h"
#include "nouveau_gem.h"
#include "nouveau_bo.h"
#include "nouveau_fb.h"
#include "nouveau_fbcon.h"
#include "nouveau_chan.h"

#include "nouveau_crtc.h"

#include <core/client.h>
#include <core/device.h>

#include <subdev/fb.h>

MODULE_PARM_DESC(nofbaccel, "Disable fbcon acceleration");
static int nouveau_nofbaccel = 0;
module_param_named(nofbaccel, nouveau_nofbaccel, int, 0400);

static void
nouveau_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
{
	struct nouveau_fbdev *fbcon = info->par;
	struct nouveau_drm *drm = nouveau_newpriv(fbcon->dev);
	struct nouveau_device *device = nv_device(drm->device);
	int ret;

	if (info->state != FBINFO_STATE_RUNNING)
		return;

	ret = -ENODEV;
	if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
	    mutex_trylock(&drm->client.mutex)) {
		if (device->card_type < NV_50)
			ret = nv04_fbcon_fillrect(info, rect);
		else
		if (device->card_type < NV_C0)
			ret = nv50_fbcon_fillrect(info, rect);
		else
			ret = nvc0_fbcon_fillrect(info, rect);
		mutex_unlock(&drm->client.mutex);
	}

	if (ret == 0)
		return;

	if (ret != -ENODEV)
		nouveau_fbcon_gpu_lockup(info);
	cfb_fillrect(info, rect);
}

static void
nouveau_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *image)
{
	struct nouveau_fbdev *fbcon = info->par;
	struct nouveau_drm *drm = nouveau_newpriv(fbcon->dev);
	struct nouveau_device *device = nv_device(drm->device);
	int ret;

	if (info->state != FBINFO_STATE_RUNNING)
		return;

	ret = -ENODEV;
	if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
	    mutex_trylock(&drm->client.mutex)) {
		if (device->card_type < NV_50)
			ret = nv04_fbcon_copyarea(info, image);
		else
		if (device->card_type < NV_C0)
			ret = nv50_fbcon_copyarea(info, image);
		else
			ret = nvc0_fbcon_copyarea(info, image);
		mutex_unlock(&drm->client.mutex);
	}

	if (ret == 0)
		return;

	if (ret != -ENODEV)
		nouveau_fbcon_gpu_lockup(info);
	cfb_copyarea(info, image);
}

static void
nouveau_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
{
	struct nouveau_fbdev *fbcon = info->par;
	struct nouveau_drm *drm = nouveau_newpriv(fbcon->dev);
	struct nouveau_device *device = nv_device(drm->device);
	int ret;

	if (info->state != FBINFO_STATE_RUNNING)
		return;

	ret = -ENODEV;
	if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
	    mutex_trylock(&drm->client.mutex)) {
		if (device->card_type < NV_50)
			ret = nv04_fbcon_imageblit(info, image);
		else
		if (device->card_type < NV_C0)
			ret = nv50_fbcon_imageblit(info, image);
		else
			ret = nvc0_fbcon_imageblit(info, image);
		mutex_unlock(&drm->client.mutex);
	}

	if (ret == 0)
		return;

	if (ret != -ENODEV)
		nouveau_fbcon_gpu_lockup(info);
	cfb_imageblit(info, image);
}

static int
nouveau_fbcon_sync(struct fb_info *info)
{
	struct nouveau_fbdev *fbcon = info->par;
	struct nouveau_drm *drm = nouveau_newpriv(fbcon->dev);
	struct nouveau_channel *chan = drm->channel;
	int ret;

	if (!chan || !chan->accel_done || in_interrupt() ||
	    info->state != FBINFO_STATE_RUNNING ||
	    info->flags & FBINFO_HWACCEL_DISABLED)
		return 0;

	if (!mutex_trylock(&drm->client.mutex))
		return 0;

	ret = nouveau_channel_idle(chan);
	mutex_unlock(&drm->client.mutex);
	if (ret) {
		nouveau_fbcon_gpu_lockup(info);
		return 0;
	}

	chan->accel_done = false;
	return 0;
}

static struct fb_ops nouveau_fbcon_ops = {
	.owner = THIS_MODULE,
	.fb_check_var = drm_fb_helper_check_var,
	.fb_set_par = drm_fb_helper_set_par,
	.fb_fillrect = nouveau_fbcon_fillrect,
	.fb_copyarea = nouveau_fbcon_copyarea,
	.fb_imageblit = nouveau_fbcon_imageblit,
	.fb_sync = nouveau_fbcon_sync,
	.fb_pan_display = drm_fb_helper_pan_display,
	.fb_blank = drm_fb_helper_blank,
	.fb_setcmap = drm_fb_helper_setcmap,
	.fb_debug_enter = drm_fb_helper_debug_enter,
	.fb_debug_leave = drm_fb_helper_debug_leave,
};

static struct fb_ops nouveau_fbcon_sw_ops = {
	.owner = THIS_MODULE,
	.fb_check_var = drm_fb_helper_check_var,
	.fb_set_par = drm_fb_helper_set_par,
	.fb_fillrect = cfb_fillrect,
	.fb_copyarea = cfb_copyarea,
	.fb_imageblit = cfb_imageblit,
	.fb_pan_display = drm_fb_helper_pan_display,
	.fb_blank = drm_fb_helper_blank,
	.fb_setcmap = drm_fb_helper_setcmap,
	.fb_debug_enter = drm_fb_helper_debug_enter,
	.fb_debug_leave = drm_fb_helper_debug_leave,
};

static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
				    u16 blue, int regno)
{
	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);

	nv_crtc->lut.r[regno] = red;
	nv_crtc->lut.g[regno] = green;
	nv_crtc->lut.b[regno] = blue;
}

static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
				    u16 *blue, int regno)
{
	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);

	*red = nv_crtc->lut.r[regno];
	*green = nv_crtc->lut.g[regno];
	*blue = nv_crtc->lut.b[regno];
}

static void
nouveau_fbcon_zfill(struct drm_device *dev, struct nouveau_fbdev *fbcon)
{
	struct fb_info *info = fbcon->helper.fbdev;
	struct fb_fillrect rect;

	/* Clear the entire fbcon.  The drm will program every connector
	 * with it's preferred mode.  If the sizes differ, one display will
	 * quite likely have garbage around the console.
	 */
	rect.dx = rect.dy = 0;
	rect.width = info->var.xres_virtual;
	rect.height = info->var.yres_virtual;
	rect.color = 0;
	rect.rop = ROP_COPY;
	info->fbops->fb_fillrect(info, &rect);
}

static int
nouveau_fbcon_create(struct nouveau_fbdev *fbcon,
		     struct drm_fb_helper_surface_size *sizes)
{
	struct drm_device *dev = fbcon->dev;
	struct nouveau_drm *drm = nouveau_newpriv(dev);
	struct nouveau_device *device = nv_device(drm->device);
	struct fb_info *info;
	struct drm_framebuffer *fb;
	struct nouveau_framebuffer *nouveau_fb;
	struct nouveau_channel *chan;
	struct nouveau_bo *nvbo;
	struct drm_mode_fb_cmd2 mode_cmd;
	struct pci_dev *pdev = dev->pdev;
	int size, ret;

	mode_cmd.width = sizes->surface_width;
	mode_cmd.height = sizes->surface_height;

	mode_cmd.pitches[0] = mode_cmd.width * (sizes->surface_bpp >> 3);
	mode_cmd.pitches[0] = roundup(mode_cmd.pitches[0], 256);

	mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
							  sizes->surface_depth);

	size = mode_cmd.pitches[0] * mode_cmd.height;
	size = roundup(size, PAGE_SIZE);

	ret = nouveau_gem_new(dev, size, 0, NOUVEAU_GEM_DOMAIN_VRAM,
			      0, 0x0000, &nvbo);
	if (ret) {
		NV_ERROR(drm, "failed to allocate framebuffer\n");
		goto out;
	}

	ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM);
	if (ret) {
		NV_ERROR(drm, "failed to pin fb: %d\n", ret);
		nouveau_bo_ref(NULL, &nvbo);
		goto out;
	}

	ret = nouveau_bo_map(nvbo);
	if (ret) {
		NV_ERROR(drm, "failed to map fb: %d\n", ret);
		nouveau_bo_unpin(nvbo);
		nouveau_bo_ref(NULL, &nvbo);
		goto out;
	}

	chan = nouveau_nofbaccel ? NULL : drm->channel;
	if (chan && device->card_type >= NV_50) {
		ret = nouveau_bo_vma_add(nvbo, nv_client(chan->cli)->vm,
					&fbcon->nouveau_fb.vma);
		if (ret) {
			NV_ERROR(drm, "failed to map fb into chan: %d\n", ret);
			chan = NULL;
		}
	}

	mutex_lock(&dev->struct_mutex);

	info = framebuffer_alloc(0, &pdev->dev);
	if (!info) {
		ret = -ENOMEM;
		goto out_unref;
	}

	ret = fb_alloc_cmap(&info->cmap, 256, 0);
	if (ret) {
		ret = -ENOMEM;
		goto out_unref;
	}

	info->par = fbcon;

	nouveau_framebuffer_init(dev, &fbcon->nouveau_fb, &mode_cmd, nvbo);

	nouveau_fb = &fbcon->nouveau_fb;
	fb = &nouveau_fb->base;

	/* setup helper */
	fbcon->helper.fb = fb;
	fbcon->helper.fbdev = info;

	strcpy(info->fix.id, "nouveaufb");
	if (nouveau_nofbaccel)
		info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED;
	else
		info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
			      FBINFO_HWACCEL_FILLRECT |
			      FBINFO_HWACCEL_IMAGEBLIT;
	info->flags |= FBINFO_CAN_FORCE_OUTPUT;
	info->fbops = &nouveau_fbcon_sw_ops;
	info->fix.smem_start = nvbo->bo.mem.bus.base +
			       nvbo->bo.mem.bus.offset;
	info->fix.smem_len = size;

	info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo);
	info->screen_size = size;

	drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
	drm_fb_helper_fill_var(info, &fbcon->helper, sizes->fb_width, sizes->fb_height);

	/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */

	mutex_unlock(&dev->struct_mutex);

	if (chan) {
		ret = -ENODEV;
		if (device->card_type < NV_50)
			ret = nv04_fbcon_accel_init(info);
		else
		if (device->card_type < NV_C0)
			ret = nv50_fbcon_accel_init(info);
		else
			ret = nvc0_fbcon_accel_init(info);

		if (ret == 0)
			info->fbops = &nouveau_fbcon_ops;
	}

	nouveau_fbcon_zfill(dev, fbcon);

	/* To allow resizeing without swapping buffers */
	NV_INFO(drm, "allocated %dx%d fb: 0x%lx, bo %p\n",
		nouveau_fb->base.width, nouveau_fb->base.height,
		nvbo->bo.offset, nvbo);

	vga_switcheroo_client_fb_set(dev->pdev, info);
	return 0;

out_unref:
	mutex_unlock(&dev->struct_mutex);
out:
	return ret;
}

static int
nouveau_fbcon_find_or_create_single(struct drm_fb_helper *helper,
				    struct drm_fb_helper_surface_size *sizes)
{
	struct nouveau_fbdev *fbcon = (struct nouveau_fbdev *)helper;
	int new_fb = 0;
	int ret;

	if (!helper->fb) {
		ret = nouveau_fbcon_create(fbcon, sizes);
		if (ret)
			return ret;
		new_fb = 1;
	}
	return new_fb;
}

void
nouveau_fbcon_output_poll_changed(struct drm_device *dev)
{
	struct nouveau_drm *drm = nouveau_newpriv(dev);
	drm_fb_helper_hotplug_event(&drm->fbcon->helper);
}

static int
nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *fbcon)
{
	struct nouveau_framebuffer *nouveau_fb = &fbcon->nouveau_fb;
	struct fb_info *info;

	if (fbcon->helper.fbdev) {
		info = fbcon->helper.fbdev;
		unregister_framebuffer(info);
		if (info->cmap.len)
			fb_dealloc_cmap(&info->cmap);
		framebuffer_release(info);
	}

	if (nouveau_fb->nvbo) {
		nouveau_bo_unmap(nouveau_fb->nvbo);
		nouveau_bo_vma_del(nouveau_fb->nvbo, &nouveau_fb->vma);
		drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem);
		nouveau_fb->nvbo = NULL;
	}
	drm_fb_helper_fini(&fbcon->helper);
	drm_framebuffer_cleanup(&nouveau_fb->base);
	return 0;
}

void nouveau_fbcon_gpu_lockup(struct fb_info *info)
{
	struct nouveau_fbdev *fbcon = info->par;
	struct nouveau_drm *drm = nouveau_newpriv(fbcon->dev);

	NV_ERROR(drm, "GPU lockup - switching to software fbcon\n");
	info->flags |= FBINFO_HWACCEL_DISABLED;
}

static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = {
	.gamma_set = nouveau_fbcon_gamma_set,
	.gamma_get = nouveau_fbcon_gamma_get,
	.fb_probe = nouveau_fbcon_find_or_create_single,
};


int
nouveau_fbcon_init(struct drm_device *dev)
{
	struct nouveau_drm *drm = nouveau_newpriv(dev);
	struct nouveau_fb *pfb = nouveau_fb(drm->device);
	struct nouveau_fbdev *fbcon;
	int preferred_bpp;
	int ret;

	if (!dev->mode_config.num_crtc)
		return 0;

	fbcon = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL);
	if (!fbcon)
		return -ENOMEM;

	fbcon->dev = dev;
	drm->fbcon = fbcon;
	fbcon->helper.funcs = &nouveau_fbcon_helper_funcs;

	ret = drm_fb_helper_init(dev, &fbcon->helper,
				 dev->mode_config.num_crtc, 4);
	if (ret) {
		kfree(fbcon);
		return ret;
	}

	drm_fb_helper_single_add_all_connectors(&fbcon->helper);

	if (pfb->ram.size <= 32 * 1024 * 1024)
		preferred_bpp = 8;
	else
	if (pfb->ram.size <= 64 * 1024 * 1024)
		preferred_bpp = 16;
	else
		preferred_bpp = 32;

	drm_fb_helper_initial_config(&fbcon->helper, preferred_bpp);
	return 0;
}

void
nouveau_fbcon_fini(struct drm_device *dev)
{
	struct nouveau_drm *drm = nouveau_newpriv(dev);

	if (!drm->fbcon)
		return;

	nouveau_fbcon_destroy(dev, drm->fbcon);
	kfree(drm->fbcon);
	drm->fbcon = NULL;
}

void nouveau_fbcon_save_disable_accel(struct drm_device *dev)
{
	struct nouveau_drm *drm = nouveau_newpriv(dev);

	drm->fbcon->saved_flags = drm->fbcon->helper.fbdev->flags;
	drm->fbcon->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED;
}

void nouveau_fbcon_restore_accel(struct drm_device *dev)
{
	struct nouveau_drm *drm = nouveau_newpriv(dev);
	drm->fbcon->helper.fbdev->flags = drm->fbcon->saved_flags;
}

void nouveau_fbcon_set_suspend(struct drm_device *dev, int state)
{
	struct nouveau_drm *drm = nouveau_newpriv(dev);
	console_lock();
	if (state == 0)
		nouveau_fbcon_save_disable_accel(dev);
	fb_set_suspend(drm->fbcon->helper.fbdev, state);
	if (state == 1)
		nouveau_fbcon_restore_accel(dev);
	console_unlock();
}

void nouveau_fbcon_zfill_all(struct drm_device *dev)
{
	struct nouveau_drm *drm = nouveau_newpriv(dev);
	nouveau_fbcon_zfill(dev, drm->fbcon);
}
Commit	Line	Data
6ee73861 BS	1	/*
	2	* Copyright © 2007 David Airlie
	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 (including the next
	12	* paragraph) shall be included in all copies or substantial portions of the
	13	* Software.
	14	*
	15	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	16	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	17	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	18	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	19	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
	20	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
	21	* DEALINGS IN THE SOFTWARE.
	22	*
	23	* Authors:
	24	* David Airlie
	25	*/
	26
	27	#include <linux/module.h>
	28	#include <linux/kernel.h>
	29	#include <linux/errno.h>
	30	#include <linux/string.h>
	31	#include <linux/mm.h>
	32	#include <linux/tty.h>
6ee73861 BS	33	#include <linux/sysrq.h>
	34	#include <linux/delay.h>
	35	#include <linux/fb.h>
	36	#include <linux/init.h>
	37	#include <linux/screen_info.h>
6a9ee8af	38	#include <linux/vga_switcheroo.h>
cf41d53b	39	#include <linux/console.h>
6ee73861 BS	40
	41	#include "drmP.h"
	42	#include "drm.h"
	43	#include "drm_crtc.h"
	44	#include "drm_crtc_helper.h"
	45	#include "drm_fb_helper.h"
ebb945a9 BS	46
	47	#include "nouveau_drm.h"
	48	#include "nouveau_gem.h"
	49	#include "nouveau_bo.h"
6ee73861 BS	50	#include "nouveau_fb.h"
6ee73861 BS	51	#include "nouveau_fbcon.h"
ebb945a9 BS	52	#include "nouveau_chan.h"
	53
	54	#include "nouveau_crtc.h"
	55
	56	#include <core/client.h>
	57	#include <core/device.h>
	58
	59	#include <subdev/fb.h>
	60
	61	MODULE_PARM_DESC(nofbaccel, "Disable fbcon acceleration");
	62	static int nouveau_nofbaccel = 0;
	63	module_param_named(nofbaccel, nouveau_nofbaccel, int, 0400);
6ee73861	64
ceed5f30 BS	65	static void
	66	nouveau_fbcon_fillrect(struct fb_info info, const struct fb_fillrect rect)
	67	{
ebb945a9 BS	68	struct nouveau_fbdev *fbcon = info->par;
	69	struct nouveau_drm *drm = nouveau_newpriv(fbcon->dev);
	70	struct nouveau_device *device = nv_device(drm->device);
ceed5f30 BS	71	int ret;
	72
	73	if (info->state != FBINFO_STATE_RUNNING)
	74	return;
	75
	76	ret = -ENODEV;
9acc8100	77	if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
ebb945a9 BS	78	mutex_trylock(&drm->client.mutex)) {
ebb945a9 BS	79	if (device->card_type < NV_50)
ceed5f30 BS	80	ret = nv04_fbcon_fillrect(info, rect);
ceed5f30 BS	81	else
ebb945a9	82	if (device->card_type < NV_C0)
ceed5f30	83	ret = nv50_fbcon_fillrect(info, rect);
ddbaf79a BS	84	else
ddbaf79a BS	85	ret = nvc0_fbcon_fillrect(info, rect);
ebb945a9	86	mutex_unlock(&drm->client.mutex);
ceed5f30 BS	87	}
	88
	89	if (ret == 0)
	90	return;
	91
	92	if (ret != -ENODEV)
	93	nouveau_fbcon_gpu_lockup(info);
	94	cfb_fillrect(info, rect);
	95	}
	96
	97	static void
	98	nouveau_fbcon_copyarea(struct fb_info info, const struct fb_copyarea image)
	99	{
ebb945a9 BS	100	struct nouveau_fbdev *fbcon = info->par;
	101	struct nouveau_drm *drm = nouveau_newpriv(fbcon->dev);
	102	struct nouveau_device *device = nv_device(drm->device);
ceed5f30 BS	103	int ret;
	104
	105	if (info->state != FBINFO_STATE_RUNNING)
	106	return;
	107
	108	ret = -ENODEV;
9acc8100	109	if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
ebb945a9 BS	110	mutex_trylock(&drm->client.mutex)) {
ebb945a9 BS	111	if (device->card_type < NV_50)
ceed5f30 BS	112	ret = nv04_fbcon_copyarea(info, image);
ceed5f30 BS	113	else
ebb945a9	114	if (device->card_type < NV_C0)
ceed5f30	115	ret = nv50_fbcon_copyarea(info, image);
ddbaf79a BS	116	else
ddbaf79a BS	117	ret = nvc0_fbcon_copyarea(info, image);
ebb945a9	118	mutex_unlock(&drm->client.mutex);
ceed5f30 BS	119	}
	120
	121	if (ret == 0)
	122	return;
	123
	124	if (ret != -ENODEV)
	125	nouveau_fbcon_gpu_lockup(info);
	126	cfb_copyarea(info, image);
	127	}
	128
	129	static void
	130	nouveau_fbcon_imageblit(struct fb_info info, const struct fb_image image)
	131	{
ebb945a9 BS	132	struct nouveau_fbdev *fbcon = info->par;
	133	struct nouveau_drm *drm = nouveau_newpriv(fbcon->dev);
	134	struct nouveau_device *device = nv_device(drm->device);
ceed5f30 BS	135	int ret;
	136
	137	if (info->state != FBINFO_STATE_RUNNING)
	138	return;
	139
	140	ret = -ENODEV;
9acc8100	141	if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
ebb945a9 BS	142	mutex_trylock(&drm->client.mutex)) {
ebb945a9 BS	143	if (device->card_type < NV_50)
ceed5f30 BS	144	ret = nv04_fbcon_imageblit(info, image);
ceed5f30 BS	145	else
ebb945a9	146	if (device->card_type < NV_C0)
ceed5f30	147	ret = nv50_fbcon_imageblit(info, image);
ddbaf79a BS	148	else
ddbaf79a BS	149	ret = nvc0_fbcon_imageblit(info, image);
ebb945a9	150	mutex_unlock(&drm->client.mutex);
ceed5f30 BS	151	}
	152
	153	if (ret == 0)
	154	return;
	155
	156	if (ret != -ENODEV)
	157	nouveau_fbcon_gpu_lockup(info);
	158	cfb_imageblit(info, image);
	159	}
	160
6ee73861 BS	161	static int
	162	nouveau_fbcon_sync(struct fb_info *info)
	163	{
ebb945a9 BS	164	struct nouveau_fbdev *fbcon = info->par;
	165	struct nouveau_drm *drm = nouveau_newpriv(fbcon->dev);
	166	struct nouveau_channel *chan = drm->channel;
78df3a1c	167	int ret;
6ee73861	168
6a6b73f2	169	if (!chan \|\| !chan->accel_done \|\| in_interrupt() \|\|
6ee73861 BS	170	info->state != FBINFO_STATE_RUNNING \|\|
	171	info->flags & FBINFO_HWACCEL_DISABLED)
	172	return 0;
	173
ebb945a9	174	if (!mutex_trylock(&drm->client.mutex))
9acc8100 BS	175	return 0;
9acc8100 BS	176
78df3a1c	177	ret = nouveau_channel_idle(chan);
ebb945a9	178	mutex_unlock(&drm->client.mutex);
6ee73861	179	if (ret) {
846975a9	180	nouveau_fbcon_gpu_lockup(info);
6ee73861 BS	181	return 0;
	182	}
	183
	184	chan->accel_done = false;
	185	return 0;
	186	}
	187
	188	static struct fb_ops nouveau_fbcon_ops = {
	189	.owner = THIS_MODULE,
	190	.fb_check_var = drm_fb_helper_check_var,
	191	.fb_set_par = drm_fb_helper_set_par,
ceed5f30 BS	192	.fb_fillrect = nouveau_fbcon_fillrect,
	193	.fb_copyarea = nouveau_fbcon_copyarea,
	194	.fb_imageblit = nouveau_fbcon_imageblit,
6ee73861 BS	195	.fb_sync = nouveau_fbcon_sync,
	196	.fb_pan_display = drm_fb_helper_pan_display,
	197	.fb_blank = drm_fb_helper_blank,
	198	.fb_setcmap = drm_fb_helper_setcmap,
be64c2bb CB	199	.fb_debug_enter = drm_fb_helper_debug_enter,
be64c2bb CB	200	.fb_debug_leave = drm_fb_helper_debug_leave,
6ee73861 BS	201	};
6ee73861 BS	202
ceed5f30	203	static struct fb_ops nouveau_fbcon_sw_ops = {
126b5440 MK	204	.owner = THIS_MODULE,
	205	.fb_check_var = drm_fb_helper_check_var,
	206	.fb_set_par = drm_fb_helper_set_par,
ceed5f30 BS	207	.fb_fillrect = cfb_fillrect,
	208	.fb_copyarea = cfb_copyarea,
	209	.fb_imageblit = cfb_imageblit,
126b5440 MK	210	.fb_pan_display = drm_fb_helper_pan_display,
	211	.fb_blank = drm_fb_helper_blank,
	212	.fb_setcmap = drm_fb_helper_setcmap,
be64c2bb CB	213	.fb_debug_enter = drm_fb_helper_debug_enter,
be64c2bb CB	214	.fb_debug_leave = drm_fb_helper_debug_leave,
126b5440 MK	215	};
126b5440 MK	216
6ee73861 BS	217	static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
	218	u16 blue, int regno)
	219	{
	220	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
	221
	222	nv_crtc->lut.r[regno] = red;
	223	nv_crtc->lut.g[regno] = green;
	224	nv_crtc->lut.b[regno] = blue;
	225	}
	226
	227	static void nouveau_fbcon_gamma_get(struct drm_crtc crtc, u16 red, u16 *green,
	228	u16 *blue, int regno)
	229	{
	230	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
	231
	232	*red = nv_crtc->lut.r[regno];
	233	*green = nv_crtc->lut.g[regno];
	234	*blue = nv_crtc->lut.b[regno];
	235	}
	236
38651674	237	static void
ebb945a9	238	nouveau_fbcon_zfill(struct drm_device dev, struct nouveau_fbdev fbcon)
6ee73861	239	{
ebb945a9	240	struct fb_info *info = fbcon->helper.fbdev;
6ee73861 BS	241	struct fb_fillrect rect;
	242
	243	/* Clear the entire fbcon. The drm will program every connector
	244	* with it's preferred mode. If the sizes differ, one display will
	245	* quite likely have garbage around the console.
	246	*/
	247	rect.dx = rect.dy = 0;
	248	rect.width = info->var.xres_virtual;
	249	rect.height = info->var.yres_virtual;
	250	rect.color = 0;
	251	rect.rop = ROP_COPY;
	252	info->fbops->fb_fillrect(info, &rect);
	253	}
	254
	255	static int
ebb945a9	256	nouveau_fbcon_create(struct nouveau_fbdev *fbcon,
8be48d92	257	struct drm_fb_helper_surface_size *sizes)
6ee73861	258	{
ebb945a9 BS	259	struct drm_device *dev = fbcon->dev;
	260	struct nouveau_drm *drm = nouveau_newpriv(dev);
	261	struct nouveau_device *device = nv_device(drm->device);
6ee73861	262	struct fb_info *info;
6ee73861 BS	263	struct drm_framebuffer *fb;
6ee73861 BS	264	struct nouveau_framebuffer *nouveau_fb;
45143cb5	265	struct nouveau_channel *chan;
6ee73861	266	struct nouveau_bo *nvbo;
308e5bcb	267	struct drm_mode_fb_cmd2 mode_cmd;
1471ca9a	268	struct pci_dev *pdev = dev->pdev;
6ee73861 BS	269	int size, ret;
6ee73861 BS	270
38651674 DA	271	mode_cmd.width = sizes->surface_width;
38651674 DA	272	mode_cmd.height = sizes->surface_height;
6ee73861	273
308e5bcb JB	274	mode_cmd.pitches[0] = mode_cmd.width * (sizes->surface_bpp >> 3);
308e5bcb JB	275	mode_cmd.pitches[0] = roundup(mode_cmd.pitches[0], 256);
6ee73861	276
308e5bcb JB	277	mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
	278	sizes->surface_depth);
	279
	280	size = mode_cmd.pitches[0] * mode_cmd.height;
1c7059e4	281	size = roundup(size, PAGE_SIZE);
6ee73861	282
f6d4e621 BS	283	ret = nouveau_gem_new(dev, size, 0, NOUVEAU_GEM_DOMAIN_VRAM,
f6d4e621 BS	284	0, 0x0000, &nvbo);
6ee73861	285	if (ret) {
ebb945a9	286	NV_ERROR(drm, "failed to allocate framebuffer\n");
6ee73861 BS	287	goto out;
	288	}
	289
	290	ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM);
	291	if (ret) {
ebb945a9	292	NV_ERROR(drm, "failed to pin fb: %d\n", ret);
6ee73861 BS	293	nouveau_bo_ref(NULL, &nvbo);
	294	goto out;
	295	}
	296
	297	ret = nouveau_bo_map(nvbo);
	298	if (ret) {
ebb945a9	299	NV_ERROR(drm, "failed to map fb: %d\n", ret);
6ee73861 BS	300	nouveau_bo_unpin(nvbo);
	301	nouveau_bo_ref(NULL, &nvbo);
	302	goto out;
	303	}
	304
ebb945a9 BS	305	chan = nouveau_nofbaccel ? NULL : drm->channel;
	306	if (chan && device->card_type >= NV_50) {
	307	ret = nouveau_bo_vma_add(nvbo, nv_client(chan->cli)->vm,
	308	&fbcon->nouveau_fb.vma);
45143cb5	309	if (ret) {
ebb945a9	310	NV_ERROR(drm, "failed to map fb into chan: %d\n", ret);
45143cb5 BS	311	chan = NULL;
	312	}
	313	}
	314
6ee73861 BS	315	mutex_lock(&dev->struct_mutex);
6ee73861 BS	316
ebb945a9	317	info = framebuffer_alloc(0, &pdev->dev);
6ee73861	318	if (!info) {
6ee73861	319	ret = -ENOMEM;
6ee73861 BS	320	goto out_unref;
	321	}
	322
4abe3520 DA	323	ret = fb_alloc_cmap(&info->cmap, 256, 0);
4abe3520 DA	324	if (ret) {
6ee73861 BS	325	ret = -ENOMEM;
	326	goto out_unref;
	327	}
	328
ebb945a9	329	info->par = fbcon;
38651674	330
ebb945a9	331	nouveau_framebuffer_init(dev, &fbcon->nouveau_fb, &mode_cmd, nvbo);
38651674	332
ebb945a9	333	nouveau_fb = &fbcon->nouveau_fb;
8be48d92	334	fb = &nouveau_fb->base;
38651674	335
8be48d92	336	/* setup helper */
ebb945a9 BS	337	fbcon->helper.fb = fb;
ebb945a9 BS	338	fbcon->helper.fbdev = info;
6ee73861 BS	339
6ee73861 BS	340	strcpy(info->fix.id, "nouveaufb");
a32ed69d MK	341	if (nouveau_nofbaccel)
	342	info->flags = FBINFO_DEFAULT \| FBINFO_HWACCEL_DISABLED;
	343	else
	344	info->flags = FBINFO_DEFAULT \| FBINFO_HWACCEL_COPYAREA \|
	345	FBINFO_HWACCEL_FILLRECT \|
	346	FBINFO_HWACCEL_IMAGEBLIT;
8fd4bd22	347	info->flags \|= FBINFO_CAN_FORCE_OUTPUT;
ceed5f30	348	info->fbops = &nouveau_fbcon_sw_ops;
f01a9720 BS	349	info->fix.smem_start = nvbo->bo.mem.bus.base +
f01a9720 BS	350	nvbo->bo.mem.bus.offset;
6ee73861 BS	351	info->fix.smem_len = size;
	352
	353	info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo);
	354	info->screen_size = size;
	355
01f2c773	356	drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
ebb945a9	357	drm_fb_helper_fill_var(info, &fbcon->helper, sizes->fb_width, sizes->fb_height);
1471ca9a	358
fb2a99e1	359	/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
6ee73861	360
6a6b73f2 BS	361	mutex_unlock(&dev->struct_mutex);
6a6b73f2 BS	362
ebb945a9	363	if (chan) {
ceed5f30	364	ret = -ENODEV;
ebb945a9	365	if (device->card_type < NV_50)
ceed5f30 BS	366	ret = nv04_fbcon_accel_init(info);
ceed5f30 BS	367	else
ebb945a9	368	if (device->card_type < NV_C0)
ceed5f30	369	ret = nv50_fbcon_accel_init(info);
ddbaf79a BS	370	else
ddbaf79a BS	371	ret = nvc0_fbcon_accel_init(info);
ceed5f30 BS	372
	373	if (ret == 0)
	374	info->fbops = &nouveau_fbcon_ops;
0735f62e	375	}
6ee73861	376
ebb945a9	377	nouveau_fbcon_zfill(dev, fbcon);
6ee73861 BS	378
6ee73861 BS	379	/* To allow resizeing without swapping buffers */
ebb945a9 BS	380	NV_INFO(drm, "allocated %dx%d fb: 0x%lx, bo %p\n",
	381	nouveau_fb->base.width, nouveau_fb->base.height,
	382	nvbo->bo.offset, nvbo);
6ee73861	383
6a9ee8af	384	vga_switcheroo_client_fb_set(dev->pdev, info);
6ee73861 BS	385	return 0;
	386
	387	out_unref:
	388	mutex_unlock(&dev->struct_mutex);
	389	out:
	390	return ret;
	391	}
	392
38651674	393	static int
8be48d92 DA	394	nouveau_fbcon_find_or_create_single(struct drm_fb_helper *helper,
8be48d92 DA	395	struct drm_fb_helper_surface_size *sizes)
6ee73861	396	{
ebb945a9	397	struct nouveau_fbdev fbcon = (struct nouveau_fbdev )helper;
38651674 DA	398	int new_fb = 0;
	399	int ret;
	400
8be48d92	401	if (!helper->fb) {
ebb945a9	402	ret = nouveau_fbcon_create(fbcon, sizes);
38651674 DA	403	if (ret)
38651674 DA	404	return ret;
38651674	405	new_fb = 1;
38651674	406	}
38651674 DA	407	return new_fb;
38651674 DA	408	}
6ee73861	409
eb1f8e4f DA	410	void
eb1f8e4f DA	411	nouveau_fbcon_output_poll_changed(struct drm_device *dev)
6ee73861	412	{
ebb945a9 BS	413	struct nouveau_drm *drm = nouveau_newpriv(dev);
ebb945a9 BS	414	drm_fb_helper_hotplug_event(&drm->fbcon->helper);
6ee73861 BS	415	}
6ee73861 BS	416
6e86e041	417	static int
ebb945a9	418	nouveau_fbcon_destroy(struct drm_device dev, struct nouveau_fbdev fbcon)
6ee73861	419	{
ebb945a9	420	struct nouveau_framebuffer *nouveau_fb = &fbcon->nouveau_fb;
6ee73861 BS	421	struct fb_info *info;
6ee73861 BS	422
ebb945a9 BS	423	if (fbcon->helper.fbdev) {
ebb945a9 BS	424	info = fbcon->helper.fbdev;
6ee73861	425	unregister_framebuffer(info);
4abe3520 DA	426	if (info->cmap.len)
4abe3520 DA	427	fb_dealloc_cmap(&info->cmap);
8be48d92 DA	428	framebuffer_release(info);
8be48d92 DA	429	}
6ee73861	430
8be48d92	431	if (nouveau_fb->nvbo) {
6ee73861	432	nouveau_bo_unmap(nouveau_fb->nvbo);
45143cb5	433	nouveau_bo_vma_del(nouveau_fb->nvbo, &nouveau_fb->vma);
bc9025bd	434	drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem);
6ee73861	435	nouveau_fb->nvbo = NULL;
6ee73861	436	}
ebb945a9	437	drm_fb_helper_fini(&fbcon->helper);
38651674	438	drm_framebuffer_cleanup(&nouveau_fb->base);
6ee73861 BS	439	return 0;
6ee73861 BS	440	}
846975a9 MS	441
	442	void nouveau_fbcon_gpu_lockup(struct fb_info *info)
	443	{
ebb945a9 BS	444	struct nouveau_fbdev *fbcon = info->par;
ebb945a9 BS	445	struct nouveau_drm *drm = nouveau_newpriv(fbcon->dev);
846975a9	446
ebb945a9	447	NV_ERROR(drm, "GPU lockup - switching to software fbcon\n");
846975a9 MS	448	info->flags \|= FBINFO_HWACCEL_DISABLED;
846975a9 MS	449	}
38651674	450
4abe3520 DA	451	static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = {
	452	.gamma_set = nouveau_fbcon_gamma_set,
	453	.gamma_get = nouveau_fbcon_gamma_get,
	454	.fb_probe = nouveau_fbcon_find_or_create_single,
4abe3520 DA	455	};
	456
	457
ebb945a9 BS	458	int
ebb945a9 BS	459	nouveau_fbcon_init(struct drm_device *dev)
38651674	460	{
ebb945a9 BS	461	struct nouveau_drm *drm = nouveau_newpriv(dev);
	462	struct nouveau_fb *pfb = nouveau_fb(drm->device);
	463	struct nouveau_fbdev *fbcon;
1e482f75	464	int preferred_bpp;
5a79395b	465	int ret;
8be48d92	466
ebb945a9 BS	467	if (!dev->mode_config.num_crtc)
	468	return 0;
	469
	470	fbcon = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL);
	471	if (!fbcon)
8be48d92 DA	472	return -ENOMEM;
8be48d92 DA	473
ebb945a9 BS	474	fbcon->dev = dev;
	475	drm->fbcon = fbcon;
	476	fbcon->helper.funcs = &nouveau_fbcon_helper_funcs;
8be48d92	477
ebb945a9	478	ret = drm_fb_helper_init(dev, &fbcon->helper,
9bd0c15f	479	dev->mode_config.num_crtc, 4);
5a79395b	480	if (ret) {
ebb945a9	481	kfree(fbcon);
5a79395b CW	482	return ret;
	483	}
	484
ebb945a9	485	drm_fb_helper_single_add_all_connectors(&fbcon->helper);
1e482f75	486
ebb945a9	487	if (pfb->ram.size <= 32 * 1024 * 1024)
1e482f75	488	preferred_bpp = 8;
ebb945a9 BS	489	else
ebb945a9 BS	490	if (pfb->ram.size <= 64 * 1024 * 1024)
1e482f75 MS	491	preferred_bpp = 16;
	492	else
	493	preferred_bpp = 32;
	494
ebb945a9	495	drm_fb_helper_initial_config(&fbcon->helper, preferred_bpp);
38651674 DA	496	return 0;
	497	}
	498
ebb945a9 BS	499	void
ebb945a9 BS	500	nouveau_fbcon_fini(struct drm_device *dev)
38651674	501	{
ebb945a9	502	struct nouveau_drm *drm = nouveau_newpriv(dev);
8be48d92	503
ebb945a9	504	if (!drm->fbcon)
8be48d92 DA	505	return;
8be48d92 DA	506
ebb945a9 BS	507	nouveau_fbcon_destroy(dev, drm->fbcon);
	508	kfree(drm->fbcon);
	509	drm->fbcon = NULL;
38651674 DA	510	}
	511
	512	void nouveau_fbcon_save_disable_accel(struct drm_device *dev)
	513	{
ebb945a9	514	struct nouveau_drm *drm = nouveau_newpriv(dev);
38651674	515
ebb945a9 BS	516	drm->fbcon->saved_flags = drm->fbcon->helper.fbdev->flags;
ebb945a9 BS	517	drm->fbcon->helper.fbdev->flags \|= FBINFO_HWACCEL_DISABLED;
38651674 DA	518	}
	519
	520	void nouveau_fbcon_restore_accel(struct drm_device *dev)
	521	{
ebb945a9 BS	522	struct nouveau_drm *drm = nouveau_newpriv(dev);
ebb945a9 BS	523	drm->fbcon->helper.fbdev->flags = drm->fbcon->saved_flags;
38651674 DA	524	}
	525
	526	void nouveau_fbcon_set_suspend(struct drm_device *dev, int state)
	527	{
ebb945a9	528	struct nouveau_drm *drm = nouveau_newpriv(dev);
cf41d53b BS	529	console_lock();
	530	if (state == 0)
	531	nouveau_fbcon_save_disable_accel(dev);
ebb945a9	532	fb_set_suspend(drm->fbcon->helper.fbdev, state);
cf41d53b BS	533	if (state == 1)
	534	nouveau_fbcon_restore_accel(dev);
	535	console_unlock();
38651674 DA	536	}
	537
	538	void nouveau_fbcon_zfill_all(struct drm_device *dev)
	539	{
ebb945a9 BS	540	struct nouveau_drm *drm = nouveau_newpriv(dev);
ebb945a9 BS	541	nouveau_fbcon_zfill(dev, drm->fbcon);
38651674	542	}