[mirror_ubuntu-bionic-kernel.git] / drivers / gpu / drm / vmwgfx / vmwgfx_ldu.c

/**************************************************************************
 *
 * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
 * All Rights Reserved.
 *
 * 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, sub license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
 *
 **************************************************************************/

#include "vmwgfx_kms.h"


#define vmw_crtc_to_ldu(x) \
	container_of(x, struct vmw_legacy_display_unit, base.crtc)
#define vmw_encoder_to_ldu(x) \
	container_of(x, struct vmw_legacy_display_unit, base.encoder)
#define vmw_connector_to_ldu(x) \
	container_of(x, struct vmw_legacy_display_unit, base.connector)

struct vmw_legacy_display {
	struct list_head active;

	unsigned num_active;
	unsigned last_num_active;

	struct vmw_framebuffer *fb;
};

/**
 * Display unit using the legacy register interface.
 */
struct vmw_legacy_display_unit {
	struct vmw_display_unit base;

	struct list_head active;
};

static void vmw_ldu_destroy(struct vmw_legacy_display_unit *ldu)
{
	list_del_init(&ldu->active);
	vmw_display_unit_cleanup(&ldu->base);
	kfree(ldu);
}


/*
 * Legacy Display Unit CRTC functions
 */

static void vmw_ldu_crtc_destroy(struct drm_crtc *crtc)
{
	vmw_ldu_destroy(vmw_crtc_to_ldu(crtc));
}

static int vmw_ldu_commit_list(struct vmw_private *dev_priv)
{
	struct vmw_legacy_display *lds = dev_priv->ldu_priv;
	struct vmw_legacy_display_unit *entry;
	struct drm_framebuffer *fb = NULL;
	struct drm_crtc *crtc = NULL;
	int i = 0;

	/* If there is no display topology the host just assumes
	 * that the guest will set the same layout as the host.
	 */
	if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)) {
		int w = 0, h = 0;
		list_for_each_entry(entry, &lds->active, active) {
			crtc = &entry->base.crtc;
			w = max(w, crtc->x + crtc->mode.hdisplay);
			h = max(h, crtc->y + crtc->mode.vdisplay);
			i++;
		}

		if (crtc == NULL)
			return 0;
		fb = entry->base.crtc.fb;

		return vmw_kms_write_svga(dev_priv, w, h, fb->pitch,
					  fb->bits_per_pixel, fb->depth);
	}

	if (!list_empty(&lds->active)) {
		entry = list_entry(lds->active.next, typeof(*entry), active);
		fb = entry->base.crtc.fb;

		vmw_kms_write_svga(dev_priv, fb->width, fb->height, fb->pitch,
				   fb->bits_per_pixel, fb->depth);
	}

	/* Make sure we always show something. */
	vmw_write(dev_priv, SVGA_REG_NUM_GUEST_DISPLAYS,
		  lds->num_active ? lds->num_active : 1);

	i = 0;
	list_for_each_entry(entry, &lds->active, active) {
		crtc = &entry->base.crtc;

		vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, i);
		vmw_write(dev_priv, SVGA_REG_DISPLAY_IS_PRIMARY, !i);
		vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_X, crtc->x);
		vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_Y, crtc->y);
		vmw_write(dev_priv, SVGA_REG_DISPLAY_WIDTH, crtc->mode.hdisplay);
		vmw_write(dev_priv, SVGA_REG_DISPLAY_HEIGHT, crtc->mode.vdisplay);
		vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);

		i++;
	}

	BUG_ON(i != lds->num_active);

	lds->last_num_active = lds->num_active;

	return 0;
}

static int vmw_ldu_del_active(struct vmw_private *vmw_priv,
			      struct vmw_legacy_display_unit *ldu)
{
	struct vmw_legacy_display *ld = vmw_priv->ldu_priv;
	if (list_empty(&ldu->active))
		return 0;

	/* Must init otherwise list_empty(&ldu->active) will not work. */
	list_del_init(&ldu->active);
	if (--(ld->num_active) == 0) {
		BUG_ON(!ld->fb);
		if (ld->fb->unpin)
			ld->fb->unpin(ld->fb);
		ld->fb = NULL;
	}

	return 0;
}

static int vmw_ldu_add_active(struct vmw_private *vmw_priv,
			      struct vmw_legacy_display_unit *ldu,
			      struct vmw_framebuffer *vfb)
{
	struct vmw_legacy_display *ld = vmw_priv->ldu_priv;
	struct vmw_legacy_display_unit *entry;
	struct list_head *at;

	BUG_ON(!ld->num_active && ld->fb);
	if (vfb != ld->fb) {
		if (ld->fb && ld->fb->unpin)
			ld->fb->unpin(ld->fb);
		if (vfb->pin)
			vfb->pin(vfb);
		ld->fb = vfb;
	}

	if (!list_empty(&ldu->active))
		return 0;

	at = &ld->active;
	list_for_each_entry(entry, &ld->active, active) {
		if (entry->base.unit > ldu->base.unit)
			break;

		at = &entry->active;
	}

	list_add(&ldu->active, at);

	ld->num_active++;

	return 0;
}

static int vmw_ldu_crtc_set_config(struct drm_mode_set *set)
{
	struct vmw_private *dev_priv;
	struct vmw_legacy_display_unit *ldu;
	struct drm_connector *connector;
	struct drm_display_mode *mode;
	struct drm_encoder *encoder;
	struct vmw_framebuffer *vfb;
	struct drm_framebuffer *fb;
	struct drm_crtc *crtc;

	if (!set)
		return -EINVAL;

	if (!set->crtc)
		return -EINVAL;

	/* get the ldu */
	crtc = set->crtc;
	ldu = vmw_crtc_to_ldu(crtc);
	vfb = set->fb ? vmw_framebuffer_to_vfb(set->fb) : NULL;
	dev_priv = vmw_priv(crtc->dev);

	if (set->num_connectors > 1) {
		DRM_ERROR("to many connectors\n");
		return -EINVAL;
	}

	if (set->num_connectors == 1 &&
	    set->connectors[0] != &ldu->base.connector) {
		DRM_ERROR("connector doesn't match %p %p\n",
			set->connectors[0], &ldu->base.connector);
		return -EINVAL;
	}

	/* ldu only supports one fb active at the time */
	if (dev_priv->ldu_priv->fb && vfb &&
	    !(dev_priv->ldu_priv->num_active == 1 &&
	      !list_empty(&ldu->active)) &&
	    dev_priv->ldu_priv->fb != vfb) {
		DRM_ERROR("Multiple framebuffers not supported\n");
		return -EINVAL;
	}

	/* since they always map one to one these are safe */
	connector = &ldu->base.connector;
	encoder = &ldu->base.encoder;

	/* should we turn the crtc off? */
	if (set->num_connectors == 0 || !set->mode || !set->fb) {

		connector->encoder = NULL;
		encoder->crtc = NULL;
		crtc->fb = NULL;

		vmw_ldu_del_active(dev_priv, ldu);

		return vmw_ldu_commit_list(dev_priv);
	}


	/* we now know we want to set a mode */
	mode = set->mode;
	fb = set->fb;

	if (set->x + mode->hdisplay > fb->width ||
	    set->y + mode->vdisplay > fb->height) {
		DRM_ERROR("set outside of framebuffer\n");
		return -EINVAL;
	}

	vmw_fb_off(dev_priv);

	crtc->fb = fb;
	encoder->crtc = crtc;
	connector->encoder = encoder;
	crtc->x = set->x;
	crtc->y = set->y;
	crtc->mode = *mode;

	vmw_ldu_add_active(dev_priv, ldu, vfb);

	return vmw_ldu_commit_list(dev_priv);
}

static struct drm_crtc_funcs vmw_legacy_crtc_funcs = {
	.save = vmw_du_crtc_save,
	.restore = vmw_du_crtc_restore,
	.cursor_set = vmw_du_crtc_cursor_set,
	.cursor_move = vmw_du_crtc_cursor_move,
	.gamma_set = vmw_du_crtc_gamma_set,
	.destroy = vmw_ldu_crtc_destroy,
	.set_config = vmw_ldu_crtc_set_config,
};


/*
 * Legacy Display Unit encoder functions
 */

static void vmw_ldu_encoder_destroy(struct drm_encoder *encoder)
{
	vmw_ldu_destroy(vmw_encoder_to_ldu(encoder));
}

static struct drm_encoder_funcs vmw_legacy_encoder_funcs = {
	.destroy = vmw_ldu_encoder_destroy,
};

/*
 * Legacy Display Unit connector functions
 */

static void vmw_ldu_connector_destroy(struct drm_connector *connector)
{
	vmw_ldu_destroy(vmw_connector_to_ldu(connector));
}

static struct drm_connector_funcs vmw_legacy_connector_funcs = {
	.dpms = vmw_du_connector_dpms,
	.save = vmw_du_connector_save,
	.restore = vmw_du_connector_restore,
	.detect = vmw_du_connector_detect,
	.fill_modes = vmw_du_connector_fill_modes,
	.set_property = vmw_du_connector_set_property,
	.destroy = vmw_ldu_connector_destroy,
};

static int vmw_ldu_init(struct vmw_private *dev_priv, unsigned unit)
{
	struct vmw_legacy_display_unit *ldu;
	struct drm_device *dev = dev_priv->dev;
	struct drm_connector *connector;
	struct drm_encoder *encoder;
	struct drm_crtc *crtc;

	ldu = kzalloc(sizeof(*ldu), GFP_KERNEL);
	if (!ldu)
		return -ENOMEM;

	ldu->base.unit = unit;
	crtc = &ldu->base.crtc;
	encoder = &ldu->base.encoder;
	connector = &ldu->base.connector;

	INIT_LIST_HEAD(&ldu->active);

	ldu->base.pref_active = (unit == 0);
	ldu->base.pref_width = 800;
	ldu->base.pref_height = 600;
	ldu->base.pref_mode = NULL;

	drm_connector_init(dev, connector, &vmw_legacy_connector_funcs,
			   DRM_MODE_CONNECTOR_LVDS);
	connector->status = vmw_du_connector_detect(connector, true);

	drm_encoder_init(dev, encoder, &vmw_legacy_encoder_funcs,
			 DRM_MODE_ENCODER_LVDS);
	drm_mode_connector_attach_encoder(connector, encoder);
	encoder->possible_crtcs = (1 << unit);
	encoder->possible_clones = 0;

	drm_crtc_init(dev, crtc, &vmw_legacy_crtc_funcs);

	drm_mode_crtc_set_gamma_size(crtc, 256);

	drm_connector_attach_property(connector,
				      dev->mode_config.dirty_info_property,
				      1);

	return 0;
}

int vmw_kms_init_legacy_display_system(struct vmw_private *dev_priv)
{
	struct drm_device *dev = dev_priv->dev;
	int i;
	int ret;

	if (dev_priv->ldu_priv) {
		DRM_INFO("ldu system already on\n");
		return -EINVAL;
	}

	dev_priv->ldu_priv = kmalloc(sizeof(*dev_priv->ldu_priv), GFP_KERNEL);

	if (!dev_priv->ldu_priv)
		return -ENOMEM;

	INIT_LIST_HEAD(&dev_priv->ldu_priv->active);
	dev_priv->ldu_priv->num_active = 0;
	dev_priv->ldu_priv->last_num_active = 0;
	dev_priv->ldu_priv->fb = NULL;

	drm_mode_create_dirty_info_property(dev_priv->dev);

	if (dev_priv->capabilities & SVGA_CAP_MULTIMON) {
		for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i)
			vmw_ldu_init(dev_priv, i);
		ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS);
	} else {
		/* for old hardware without multimon only enable one display */
		vmw_ldu_init(dev_priv, 0);
		ret = drm_vblank_init(dev, 1);
	}

	return ret;
}

int vmw_kms_close_legacy_display_system(struct vmw_private *dev_priv)
{
	struct drm_device *dev = dev_priv->dev;

	drm_vblank_cleanup(dev);
	if (!dev_priv->ldu_priv)
		return -ENOSYS;

	BUG_ON(!list_empty(&dev_priv->ldu_priv->active));

	kfree(dev_priv->ldu_priv);

	return 0;
}
Commit	Line	Data
fb1d9738 JB	1	/**************************************************************************
	2	*
	3	* Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
	4	* All Rights Reserved.
	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining a
	7	* copy of this software and associated documentation files (the
	8	* "Software"), to deal in the Software without restriction, including
	9	* without limitation the rights to use, copy, modify, merge, publish,
	10	* distribute, sub license, and/or sell copies of the Software, and to
	11	* permit persons to whom the Software is furnished to do so, subject to
	12	* the following conditions:
	13	*
	14	* The above copyright notice and this permission notice (including the
	15	* next paragraph) shall be included in all copies or substantial portions
	16	* of the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
	21	* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
	22	* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
	23	* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
	24	* USE OR OTHER DEALINGS IN THE SOFTWARE.
	25	*
	26	**************************************************************************/
	27
	28	#include "vmwgfx_kms.h"
	29
7a1c2f6c	30
fb1d9738 JB	31	#define vmw_crtc_to_ldu(x) \
	32	container_of(x, struct vmw_legacy_display_unit, base.crtc)
	33	#define vmw_encoder_to_ldu(x) \
	34	container_of(x, struct vmw_legacy_display_unit, base.encoder)
	35	#define vmw_connector_to_ldu(x) \
	36	container_of(x, struct vmw_legacy_display_unit, base.connector)
	37
	38	struct vmw_legacy_display {
	39	struct list_head active;
	40
	41	unsigned num_active;
d7e1958d	42	unsigned last_num_active;
fb1d9738 JB	43
	44	struct vmw_framebuffer *fb;
	45	};
	46
	47	/**
	48	* Display unit using the legacy register interface.
	49	*/
	50	struct vmw_legacy_display_unit {
	51	struct vmw_display_unit base;
	52
	53	struct list_head active;
fb1d9738 JB	54	};
	55
	56	static void vmw_ldu_destroy(struct vmw_legacy_display_unit *ldu)
	57	{
	58	list_del_init(&ldu->active);
	59	vmw_display_unit_cleanup(&ldu->base);
	60	kfree(ldu);
	61	}
	62
	63
	64	/*
	65	* Legacy Display Unit CRTC functions
	66	*/
	67
fb1d9738 JB	68	static void vmw_ldu_crtc_destroy(struct drm_crtc *crtc)
	69	{
	70	vmw_ldu_destroy(vmw_crtc_to_ldu(crtc));
	71	}
	72
	73	static int vmw_ldu_commit_list(struct vmw_private *dev_priv)
	74	{
	75	struct vmw_legacy_display *lds = dev_priv->ldu_priv;
	76	struct vmw_legacy_display_unit *entry;
d7e1958d JB	77	struct drm_framebuffer *fb = NULL;
d7e1958d JB	78	struct drm_crtc *crtc = NULL;
fb1d9738 JB	79	int i = 0;
fb1d9738 JB	80
d7e1958d JB	81	/* If there is no display topology the host just assumes
	82	* that the guest will set the same layout as the host.
	83	*/
	84	if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)) {
	85	int w = 0, h = 0;
	86	list_for_each_entry(entry, &lds->active, active) {
	87	crtc = &entry->base.crtc;
	88	w = max(w, crtc->x + crtc->mode.hdisplay);
	89	h = max(h, crtc->y + crtc->mode.vdisplay);
	90	i++;
	91	}
	92
	93	if (crtc == NULL)
	94	return 0;
	95	fb = entry->base.crtc.fb;
	96
0bef23f9 MD	97	return vmw_kms_write_svga(dev_priv, w, h, fb->pitch,
0bef23f9 MD	98	fb->bits_per_pixel, fb->depth);
d7e1958d JB	99	}
d7e1958d JB	100
d7e1958d JB	101	if (!list_empty(&lds->active)) {
	102	entry = list_entry(lds->active.next, typeof(*entry), active);
	103	fb = entry->base.crtc.fb;
	104
	105	vmw_kms_write_svga(dev_priv, fb->width, fb->height, fb->pitch,
	106	fb->bits_per_pixel, fb->depth);
	107	}
	108
259600d5 JB	109	/* Make sure we always show something. */
	110	vmw_write(dev_priv, SVGA_REG_NUM_GUEST_DISPLAYS,
	111	lds->num_active ? lds->num_active : 1);
	112
fb1d9738 JB	113	i = 0;
	114	list_for_each_entry(entry, &lds->active, active) {
	115	crtc = &entry->base.crtc;
	116
	117	vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, i);
	118	vmw_write(dev_priv, SVGA_REG_DISPLAY_IS_PRIMARY, !i);
	119	vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_X, crtc->x);
	120	vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_Y, crtc->y);
	121	vmw_write(dev_priv, SVGA_REG_DISPLAY_WIDTH, crtc->mode.hdisplay);
	122	vmw_write(dev_priv, SVGA_REG_DISPLAY_HEIGHT, crtc->mode.vdisplay);
	123	vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
	124
	125	i++;
	126	}
	127
d7e1958d JB	128	BUG_ON(i != lds->num_active);
	129
	130	lds->last_num_active = lds->num_active;
	131
fb1d9738 JB	132	return 0;
	133	}
	134
	135	static int vmw_ldu_del_active(struct vmw_private *vmw_priv,
	136	struct vmw_legacy_display_unit *ldu)
	137	{
	138	struct vmw_legacy_display *ld = vmw_priv->ldu_priv;
	139	if (list_empty(&ldu->active))
	140	return 0;
	141
6a591a96	142	/* Must init otherwise list_empty(&ldu->active) will not work. */
fb1d9738 JB	143	list_del_init(&ldu->active);
	144	if (--(ld->num_active) == 0) {
	145	BUG_ON(!ld->fb);
	146	if (ld->fb->unpin)
	147	ld->fb->unpin(ld->fb);
	148	ld->fb = NULL;
	149	}
	150
	151	return 0;
	152	}
	153
	154	static int vmw_ldu_add_active(struct vmw_private *vmw_priv,
	155	struct vmw_legacy_display_unit *ldu,
	156	struct vmw_framebuffer *vfb)
	157	{
	158	struct vmw_legacy_display *ld = vmw_priv->ldu_priv;
	159	struct vmw_legacy_display_unit *entry;
	160	struct list_head *at;
	161
04e9e94d JB	162	BUG_ON(!ld->num_active && ld->fb);
	163	if (vfb != ld->fb) {
	164	if (ld->fb && ld->fb->unpin)
	165	ld->fb->unpin(ld->fb);
	166	if (vfb->pin)
	167	vfb->pin(vfb);
	168	ld->fb = vfb;
	169	}
	170
fb1d9738 JB	171	if (!list_empty(&ldu->active))
	172	return 0;
	173
	174	at = &ld->active;
	175	list_for_each_entry(entry, &ld->active, active) {
bbfad336	176	if (entry->base.unit > ldu->base.unit)
fb1d9738 JB	177	break;
	178
	179	at = &entry->active;
	180	}
	181
	182	list_add(&ldu->active, at);
04e9e94d JB	183
04e9e94d JB	184	ld->num_active++;
fb1d9738 JB	185
	186	return 0;
	187	}
	188
	189	static int vmw_ldu_crtc_set_config(struct drm_mode_set *set)
	190	{
	191	struct vmw_private *dev_priv;
	192	struct vmw_legacy_display_unit *ldu;
	193	struct drm_connector *connector;
	194	struct drm_display_mode *mode;
	195	struct drm_encoder *encoder;
	196	struct vmw_framebuffer *vfb;
	197	struct drm_framebuffer *fb;
	198	struct drm_crtc *crtc;
	199
	200	if (!set)
	201	return -EINVAL;
	202
	203	if (!set->crtc)
	204	return -EINVAL;
	205
	206	/* get the ldu */
	207	crtc = set->crtc;
	208	ldu = vmw_crtc_to_ldu(crtc);
	209	vfb = set->fb ? vmw_framebuffer_to_vfb(set->fb) : NULL;
	210	dev_priv = vmw_priv(crtc->dev);
	211
	212	if (set->num_connectors > 1) {
	213	DRM_ERROR("to many connectors\n");
	214	return -EINVAL;
	215	}
	216
	217	if (set->num_connectors == 1 &&
	218	set->connectors[0] != &ldu->base.connector) {
	219	DRM_ERROR("connector doesn't match %p %p\n",
	220	set->connectors[0], &ldu->base.connector);
	221	return -EINVAL;
	222	}
	223
	224	/* ldu only supports one fb active at the time */
	225	if (dev_priv->ldu_priv->fb && vfb &&
6a591a96 JB	226	!(dev_priv->ldu_priv->num_active == 1 &&
6a591a96 JB	227	!list_empty(&ldu->active)) &&
fb1d9738 JB	228	dev_priv->ldu_priv->fb != vfb) {
	229	DRM_ERROR("Multiple framebuffers not supported\n");
	230	return -EINVAL;
	231	}
	232
	233	/* since they always map one to one these are safe */
	234	connector = &ldu->base.connector;
	235	encoder = &ldu->base.encoder;
	236
	237	/* should we turn the crtc off? */
	238	if (set->num_connectors == 0 \|\| !set->mode \|\| !set->fb) {
	239
	240	connector->encoder = NULL;
	241	encoder->crtc = NULL;
	242	crtc->fb = NULL;
	243
	244	vmw_ldu_del_active(dev_priv, ldu);
	245
0bef23f9	246	return vmw_ldu_commit_list(dev_priv);
fb1d9738 JB	247	}
	248
	249
	250	/* we now know we want to set a mode */
	251	mode = set->mode;
	252	fb = set->fb;
	253
	254	if (set->x + mode->hdisplay > fb->width \|\|
	255	set->y + mode->vdisplay > fb->height) {
	256	DRM_ERROR("set outside of framebuffer\n");
	257	return -EINVAL;
	258	}
	259
	260	vmw_fb_off(dev_priv);
	261
	262	crtc->fb = fb;
	263	encoder->crtc = crtc;
	264	connector->encoder = encoder;
	265	crtc->x = set->x;
	266	crtc->y = set->y;
	267	crtc->mode = *mode;
	268
	269	vmw_ldu_add_active(dev_priv, ldu, vfb);
	270
0bef23f9	271	return vmw_ldu_commit_list(dev_priv);
fb1d9738 JB	272	}
	273
	274	static struct drm_crtc_funcs vmw_legacy_crtc_funcs = {
626ab771 JB	275	.save = vmw_du_crtc_save,
626ab771 JB	276	.restore = vmw_du_crtc_restore,
fb1d9738 JB	277	.cursor_set = vmw_du_crtc_cursor_set,
fb1d9738 JB	278	.cursor_move = vmw_du_crtc_cursor_move,
626ab771	279	.gamma_set = vmw_du_crtc_gamma_set,
fb1d9738 JB	280	.destroy = vmw_ldu_crtc_destroy,
	281	.set_config = vmw_ldu_crtc_set_config,
	282	};
	283
626ab771	284
fb1d9738 JB	285	/*
	286	* Legacy Display Unit encoder functions
	287	*/
	288
	289	static void vmw_ldu_encoder_destroy(struct drm_encoder *encoder)
	290	{
	291	vmw_ldu_destroy(vmw_encoder_to_ldu(encoder));
	292	}
	293
	294	static struct drm_encoder_funcs vmw_legacy_encoder_funcs = {
	295	.destroy = vmw_ldu_encoder_destroy,
	296	};
	297
	298	/*
	299	* Legacy Display Unit connector functions
	300	*/
	301
fb1d9738 JB	302	static void vmw_ldu_connector_destroy(struct drm_connector *connector)
	303	{
	304	vmw_ldu_destroy(vmw_connector_to_ldu(connector));
	305	}
	306
	307	static struct drm_connector_funcs vmw_legacy_connector_funcs = {
626ab771 JB	308	.dpms = vmw_du_connector_dpms,
	309	.save = vmw_du_connector_save,
	310	.restore = vmw_du_connector_restore,
	311	.detect = vmw_du_connector_detect,
	312	.fill_modes = vmw_du_connector_fill_modes,
	313	.set_property = vmw_du_connector_set_property,
fb1d9738 JB	314	.destroy = vmw_ldu_connector_destroy,
	315	};
	316
	317	static int vmw_ldu_init(struct vmw_private *dev_priv, unsigned unit)
	318	{
	319	struct vmw_legacy_display_unit *ldu;
	320	struct drm_device *dev = dev_priv->dev;
	321	struct drm_connector *connector;
	322	struct drm_encoder *encoder;
	323	struct drm_crtc *crtc;
	324
	325	ldu = kzalloc(sizeof(*ldu), GFP_KERNEL);
	326	if (!ldu)
	327	return -ENOMEM;
	328
bbfad336	329	ldu->base.unit = unit;
fb1d9738 JB	330	crtc = &ldu->base.crtc;
	331	encoder = &ldu->base.encoder;
	332	connector = &ldu->base.connector;
	333
1ae1ddd5 JB	334	INIT_LIST_HEAD(&ldu->active);
1ae1ddd5 JB	335
626ab771 JB	336	ldu->base.pref_active = (unit == 0);
	337	ldu->base.pref_width = 800;
	338	ldu->base.pref_height = 600;
	339	ldu->base.pref_mode = NULL;
d8bd19d2	340
fb1d9738 JB	341	drm_connector_init(dev, connector, &vmw_legacy_connector_funcs,
fb1d9738 JB	342	DRM_MODE_CONNECTOR_LVDS);
626ab771	343	connector->status = vmw_du_connector_detect(connector, true);
fb1d9738 JB	344
	345	drm_encoder_init(dev, encoder, &vmw_legacy_encoder_funcs,
	346	DRM_MODE_ENCODER_LVDS);
	347	drm_mode_connector_attach_encoder(connector, encoder);
	348	encoder->possible_crtcs = (1 << unit);
	349	encoder->possible_clones = 0;
	350
fb1d9738 JB	351	drm_crtc_init(dev, crtc, &vmw_legacy_crtc_funcs);
fb1d9738 JB	352
f01b7ba0 MD	353	drm_mode_crtc_set_gamma_size(crtc, 256);
f01b7ba0 MD	354
fb1d9738 JB	355	drm_connector_attach_property(connector,
	356	dev->mode_config.dirty_info_property,
	357	1);
	358
	359	return 0;
	360	}
	361
	362	int vmw_kms_init_legacy_display_system(struct vmw_private *dev_priv)
	363	{
7a1c2f6c TH	364	struct drm_device *dev = dev_priv->dev;
	365	int i;
	366	int ret;
	367
fb1d9738 JB	368	if (dev_priv->ldu_priv) {
	369	DRM_INFO("ldu system already on\n");
	370	return -EINVAL;
	371	}
	372
85b54e0c	373	dev_priv->ldu_priv = kmalloc(sizeof(*dev_priv->ldu_priv), GFP_KERNEL);
fb1d9738 JB	374
	375	if (!dev_priv->ldu_priv)
	376	return -ENOMEM;
	377
	378	INIT_LIST_HEAD(&dev_priv->ldu_priv->active);
	379	dev_priv->ldu_priv->num_active = 0;
d7e1958d	380	dev_priv->ldu_priv->last_num_active = 0;
fb1d9738 JB	381	dev_priv->ldu_priv->fb = NULL;
	382
	383	drm_mode_create_dirty_info_property(dev_priv->dev);
	384
d7e1958d	385	if (dev_priv->capabilities & SVGA_CAP_MULTIMON) {
56d1c78d	386	for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i)
7a1c2f6c	387	vmw_ldu_init(dev_priv, i);
56d1c78d	388	ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS);
7a1c2f6c TH	389	} else {
	390	/* for old hardware without multimon only enable one display */
	391	vmw_ldu_init(dev_priv, 0);
	392	ret = drm_vblank_init(dev, 1);
d7e1958d	393	}
fb1d9738	394
7a1c2f6c	395	return ret;
fb1d9738 JB	396	}
	397
	398	int vmw_kms_close_legacy_display_system(struct vmw_private *dev_priv)
	399	{
7a1c2f6c TH	400	struct drm_device *dev = dev_priv->dev;
	401
	402	drm_vblank_cleanup(dev);
fb1d9738 JB	403	if (!dev_priv->ldu_priv)
	404	return -ENOSYS;
	405
	406	BUG_ON(!list_empty(&dev_priv->ldu_priv->active));
	407
	408	kfree(dev_priv->ldu_priv);
	409
	410	return 0;
	411	}