[net-next-2.6.git] / drivers / gpu / drm / nouveau / nv50_cursor.c

/*
 * Copyright (C) 2008 Maarten Maathuis.
 * 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, 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 COPYRIGHT OWNER(S) 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 "drmP.h"
#include "drm_mode.h"

#define NOUVEAU_DMA_DEBUG (nouveau_reg_debug & NOUVEAU_REG_DEBUG_EVO)
#include "nouveau_reg.h"
#include "nouveau_drv.h"
#include "nouveau_crtc.h"
#include "nv50_display.h"

static void
nv50_cursor_show(struct nouveau_crtc *nv_crtc, bool update)
{
	struct drm_nouveau_private *dev_priv = nv_crtc->base.dev->dev_private;
	struct nouveau_channel *evo = dev_priv->evo;
	struct drm_device *dev = nv_crtc->base.dev;
	int ret;

	NV_DEBUG_KMS(dev, "\n");

	if (update && nv_crtc->cursor.visible)
		return;

	ret = RING_SPACE(evo, (dev_priv->chipset != 0x50 ? 5 : 3) + update * 2);
	if (ret) {
		NV_ERROR(dev, "no space while unhiding cursor\n");
		return;
	}

	if (dev_priv->chipset != 0x50) {
		BEGIN_RING(evo, 0, NV84_EVO_CRTC(nv_crtc->index, CURSOR_DMA), 1);
		OUT_RING(evo, NvEvoVRAM);
	}
	BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, CURSOR_CTRL), 2);
	OUT_RING(evo, NV50_EVO_CRTC_CURSOR_CTRL_SHOW);
	OUT_RING(evo, nv_crtc->cursor.offset >> 8);

	if (update) {
		BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
		OUT_RING(evo, 0);
		FIRE_RING(evo);
		nv_crtc->cursor.visible = true;
	}
}

static void
nv50_cursor_hide(struct nouveau_crtc *nv_crtc, bool update)
{
	struct drm_nouveau_private *dev_priv = nv_crtc->base.dev->dev_private;
	struct nouveau_channel *evo = dev_priv->evo;
	struct drm_device *dev = nv_crtc->base.dev;
	int ret;

	NV_DEBUG_KMS(dev, "\n");

	if (update && !nv_crtc->cursor.visible)
		return;

	ret = RING_SPACE(evo, (dev_priv->chipset != 0x50 ? 5 : 3) + update * 2);
	if (ret) {
		NV_ERROR(dev, "no space while hiding cursor\n");
		return;
	}
	BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, CURSOR_CTRL), 2);
	OUT_RING(evo, NV50_EVO_CRTC_CURSOR_CTRL_HIDE);
	OUT_RING(evo, 0);
	if (dev_priv->chipset != 0x50) {
		BEGIN_RING(evo, 0, NV84_EVO_CRTC(nv_crtc->index, CURSOR_DMA), 1);
		OUT_RING(evo, NV84_EVO_CRTC_CURSOR_DMA_HANDLE_NONE);
	}

	if (update) {
		BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
		OUT_RING(evo, 0);
		FIRE_RING(evo);
		nv_crtc->cursor.visible = false;
	}
}

static void
nv50_cursor_set_pos(struct nouveau_crtc *nv_crtc, int x, int y)
{
	struct drm_device *dev = nv_crtc->base.dev;

	nv_crtc->cursor_saved_x = x; nv_crtc->cursor_saved_y = y;
	nv_wr32(dev, NV50_PDISPLAY_CURSOR_USER_POS(nv_crtc->index),
		((y & 0xFFFF) << 16) | (x & 0xFFFF));
	/* Needed to make the cursor move. */
	nv_wr32(dev, NV50_PDISPLAY_CURSOR_USER_POS_CTRL(nv_crtc->index), 0);
}

static void
nv50_cursor_set_offset(struct nouveau_crtc *nv_crtc, uint32_t offset)
{
	NV_DEBUG_KMS(nv_crtc->base.dev, "\n");
	if (offset == nv_crtc->cursor.offset)
		return;

	nv_crtc->cursor.offset = offset;
	if (nv_crtc->cursor.visible) {
		nv_crtc->cursor.visible = false;
		nv_crtc->cursor.show(nv_crtc, true);
	}
}

int
nv50_cursor_init(struct nouveau_crtc *nv_crtc)
{
	nv_crtc->cursor.set_offset = nv50_cursor_set_offset;
	nv_crtc->cursor.set_pos = nv50_cursor_set_pos;
	nv_crtc->cursor.hide = nv50_cursor_hide;
	nv_crtc->cursor.show = nv50_cursor_show;
	return 0;
}

void
nv50_cursor_fini(struct nouveau_crtc *nv_crtc)
{
	struct drm_device *dev = nv_crtc->base.dev;
	int idx = nv_crtc->index;

	NV_DEBUG_KMS(dev, "\n");

	nv_wr32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(idx), 0);
	if (!nv_wait(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(idx),
		     NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS, 0)) {
		NV_ERROR(dev, "timeout: CURSOR_CTRL2_STATUS == 0\n");
		NV_ERROR(dev, "CURSOR_CTRL2 = 0x%08x\n",
			 nv_rd32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(idx)));
	}
}
Commit	Line	Data
6ee73861 BS	1	/*
	2	* Copyright (C) 2008 Maarten Maathuis.
	3	* All Rights Reserved.
	4	*
	5	* Permission is hereby granted, free of charge, to any person obtaining
	6	* a copy of this software and associated documentation files (the
	7	* "Software"), to deal in the Software without restriction, including
	8	* without limitation the rights to use, copy, modify, merge, publish,
	9	* distribute, sublicense, and/or sell copies of the Software, and to
	10	* permit persons to whom the Software is furnished to do so, subject to
	11	* the following conditions:
	12	*
	13	* The above copyright notice and this permission notice (including the
	14	* next paragraph) shall be included in all copies or substantial
	15	* portions of the Software.
	16	*
	17	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	18	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	19	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
	20	* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
	21	* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
	22	* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
	23	* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	24	*
	25	*/
	26
	27	#include "drmP.h"
	28	#include "drm_mode.h"
	29
	30	#define NOUVEAU_DMA_DEBUG (nouveau_reg_debug & NOUVEAU_REG_DEBUG_EVO)
	31	#include "nouveau_reg.h"
	32	#include "nouveau_drv.h"
	33	#include "nouveau_crtc.h"
	34	#include "nv50_display.h"
	35
	36	static void
	37	nv50_cursor_show(struct nouveau_crtc *nv_crtc, bool update)
	38	{
	39	struct drm_nouveau_private *dev_priv = nv_crtc->base.dev->dev_private;
	40	struct nouveau_channel *evo = dev_priv->evo;
	41	struct drm_device *dev = nv_crtc->base.dev;
	42	int ret;
	43
ef2bb506	44	NV_DEBUG_KMS(dev, "\n");
6ee73861 BS	45
	46	if (update && nv_crtc->cursor.visible)
	47	return;
	48
	49	ret = RING_SPACE(evo, (dev_priv->chipset != 0x50 ? 5 : 3) + update * 2);
	50	if (ret) {
	51	NV_ERROR(dev, "no space while unhiding cursor\n");
	52	return;
	53	}
	54
	55	if (dev_priv->chipset != 0x50) {
	56	BEGIN_RING(evo, 0, NV84_EVO_CRTC(nv_crtc->index, CURSOR_DMA), 1);
	57	OUT_RING(evo, NvEvoVRAM);
	58	}
	59	BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, CURSOR_CTRL), 2);
	60	OUT_RING(evo, NV50_EVO_CRTC_CURSOR_CTRL_SHOW);
	61	OUT_RING(evo, nv_crtc->cursor.offset >> 8);
	62
	63	if (update) {
	64	BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
	65	OUT_RING(evo, 0);
	66	FIRE_RING(evo);
	67	nv_crtc->cursor.visible = true;
	68	}
	69	}
	70
	71	static void
	72	nv50_cursor_hide(struct nouveau_crtc *nv_crtc, bool update)
	73	{
	74	struct drm_nouveau_private *dev_priv = nv_crtc->base.dev->dev_private;
	75	struct nouveau_channel *evo = dev_priv->evo;
	76	struct drm_device *dev = nv_crtc->base.dev;
	77	int ret;
	78
ef2bb506	79	NV_DEBUG_KMS(dev, "\n");
6ee73861 BS	80
	81	if (update && !nv_crtc->cursor.visible)
	82	return;
	83
	84	ret = RING_SPACE(evo, (dev_priv->chipset != 0x50 ? 5 : 3) + update * 2);
	85	if (ret) {
	86	NV_ERROR(dev, "no space while hiding cursor\n");
	87	return;
	88	}
	89	BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, CURSOR_CTRL), 2);
	90	OUT_RING(evo, NV50_EVO_CRTC_CURSOR_CTRL_HIDE);
	91	OUT_RING(evo, 0);
	92	if (dev_priv->chipset != 0x50) {
	93	BEGIN_RING(evo, 0, NV84_EVO_CRTC(nv_crtc->index, CURSOR_DMA), 1);
	94	OUT_RING(evo, NV84_EVO_CRTC_CURSOR_DMA_HANDLE_NONE);
	95	}
	96
	97	if (update) {
	98	BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
	99	OUT_RING(evo, 0);
	100	FIRE_RING(evo);
	101	nv_crtc->cursor.visible = false;
	102	}
	103	}
	104
	105	static void
	106	nv50_cursor_set_pos(struct nouveau_crtc *nv_crtc, int x, int y)
	107	{
	108	struct drm_device *dev = nv_crtc->base.dev;
	109
b334f2b3	110	nv_crtc->cursor_saved_x = x; nv_crtc->cursor_saved_y = y;
6ee73861 BS	111	nv_wr32(dev, NV50_PDISPLAY_CURSOR_USER_POS(nv_crtc->index),
	112	((y & 0xFFFF) << 16) \| (x & 0xFFFF));
	113	/* Needed to make the cursor move. */
	114	nv_wr32(dev, NV50_PDISPLAY_CURSOR_USER_POS_CTRL(nv_crtc->index), 0);
	115	}
	116
	117	static void
	118	nv50_cursor_set_offset(struct nouveau_crtc *nv_crtc, uint32_t offset)
	119	{
ef2bb506	120	NV_DEBUG_KMS(nv_crtc->base.dev, "\n");
6ee73861 BS	121	if (offset == nv_crtc->cursor.offset)
	122	return;
	123
	124	nv_crtc->cursor.offset = offset;
	125	if (nv_crtc->cursor.visible) {
	126	nv_crtc->cursor.visible = false;
	127	nv_crtc->cursor.show(nv_crtc, true);
	128	}
	129	}
	130
	131	int
	132	nv50_cursor_init(struct nouveau_crtc *nv_crtc)
	133	{
	134	nv_crtc->cursor.set_offset = nv50_cursor_set_offset;
	135	nv_crtc->cursor.set_pos = nv50_cursor_set_pos;
	136	nv_crtc->cursor.hide = nv50_cursor_hide;
	137	nv_crtc->cursor.show = nv50_cursor_show;
	138	return 0;
	139	}
	140
	141	void
	142	nv50_cursor_fini(struct nouveau_crtc *nv_crtc)
	143	{
	144	struct drm_device *dev = nv_crtc->base.dev;
	145	int idx = nv_crtc->index;
	146
ef2bb506	147	NV_DEBUG_KMS(dev, "\n");
6ee73861 BS	148
	149	nv_wr32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(idx), 0);
	150	if (!nv_wait(NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(idx),
	151	NV50_PDISPLAY_CURSOR_CURSOR_CTRL2_STATUS, 0)) {
	152	NV_ERROR(dev, "timeout: CURSOR_CTRL2_STATUS == 0\n");
	153	NV_ERROR(dev, "CURSOR_CTRL2 = 0x%08x\n",
	154	nv_rd32(dev, NV50_PDISPLAY_CURSOR_CURSOR_CTRL2(idx)));
	155	}
	156	}
	157