[mirror_ubuntu-artful-kernel.git] / drivers / video / matrox / matroxfb_accel.c

/*
 *
 * Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200 and G400
 *
 * (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
 *
 * Version: 1.65 2002/08/14
 *
 * MTRR stuff: 1998 Tom Rini <trini@kernel.crashing.org>
 *
 * Contributors: "menion?" <menion@mindless.com>
 *                     Betatesting, fixes, ideas
 *
 *               "Kurt Garloff" <garloff@suse.de>
 *                     Betatesting, fixes, ideas, videomodes, videomodes timmings
 *
 *               "Tom Rini" <trini@kernel.crashing.org>
 *                     MTRR stuff, PPC cleanups, betatesting, fixes, ideas
 *
 *               "Bibek Sahu" <scorpio@dodds.net>
 *                     Access device through readb|w|l and write b|w|l
 *                     Extensive debugging stuff
 *
 *               "Daniel Haun" <haund@usa.net>
 *                     Testing, hardware cursor fixes
 *
 *               "Scott Wood" <sawst46+@pitt.edu>
 *                     Fixes
 *
 *               "Gerd Knorr" <kraxel@goldbach.isdn.cs.tu-berlin.de>
 *                     Betatesting
 *
 *               "Kelly French" <targon@hazmat.com>
 *               "Fernando Herrera" <fherrera@eurielec.etsit.upm.es>
 *                     Betatesting, bug reporting
 *
 *               "Pablo Bianucci" <pbian@pccp.com.ar>
 *                     Fixes, ideas, betatesting
 *
 *               "Inaky Perez Gonzalez" <inaky@peloncho.fis.ucm.es>
 *                     Fixes, enhandcements, ideas, betatesting
 *
 *               "Ryuichi Oikawa" <roikawa@rr.iiij4u.or.jp>
 *                     PPC betatesting, PPC support, backward compatibility
 *
 *               "Paul Womar" <Paul@pwomar.demon.co.uk>
 *               "Owen Waller" <O.Waller@ee.qub.ac.uk>
 *                     PPC betatesting
 *
 *               "Thomas Pornin" <pornin@bolet.ens.fr>
 *                     Alpha betatesting
 *
 *               "Pieter van Leuven" <pvl@iae.nl>
 *               "Ulf Jaenicke-Roessler" <ujr@physik.phy.tu-dresden.de>
 *                     G100 testing
 *
 *               "H. Peter Arvin" <hpa@transmeta.com>
 *                     Ideas
 *
 *               "Cort Dougan" <cort@cs.nmt.edu>
 *                     CHRP fixes and PReP cleanup
 *
 *               "Mark Vojkovich" <mvojkovi@ucsd.edu>
 *                     G400 support
 *
 * (following author is not in any relation with this code, but his code
 *  is included in this driver)
 *
 * Based on framebuffer driver for VBE 2.0 compliant graphic boards
 *     (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
 *
 * (following author is not in any relation with this code, but his ideas
 *  were used when writing this driver)
 *
 *		 FreeVBE/AF (Matrox), "Shawn Hargreaves" <shawn@talula.demon.co.uk>
 *
 */

#include "matroxfb_accel.h"
#include "matroxfb_DAC1064.h"
#include "matroxfb_Ti3026.h"
#include "matroxfb_misc.h"

#define curr_ydstorg(x)	ACCESS_FBINFO2(x, curr.ydstorg.pixels)

#define mga_ydstlen(y,l) mga_outl(M_YDSTLEN | M_EXEC, ((y) << 16) | (l))

static inline void matrox_cfb4_pal(u_int32_t* pal) {
	unsigned int i;
	
	for (i = 0; i < 16; i++) {
		pal[i] = i * 0x11111111U;
	}
}

static inline void matrox_cfb8_pal(u_int32_t* pal) {
	unsigned int i;
	
	for (i = 0; i < 16; i++) {
		pal[i] = i * 0x01010101U;
	}
}

static void matroxfb_copyarea(struct fb_info* info, const struct fb_copyarea* area);
static void matroxfb_fillrect(struct fb_info* info, const struct fb_fillrect* rect);
static void matroxfb_imageblit(struct fb_info* info, const struct fb_image* image);
static void matroxfb_cfb4_fillrect(struct fb_info* info, const struct fb_fillrect* rect);
static void matroxfb_cfb4_copyarea(struct fb_info* info, const struct fb_copyarea* area);

void matrox_cfbX_init(WPMINFO2) {
	u_int32_t maccess;
	u_int32_t mpitch;
	u_int32_t mopmode;
	int accel;

	DBG(__func__)

	mpitch = ACCESS_FBINFO(fbcon).var.xres_virtual;

	ACCESS_FBINFO(fbops).fb_copyarea = cfb_copyarea;
	ACCESS_FBINFO(fbops).fb_fillrect = cfb_fillrect;
	ACCESS_FBINFO(fbops).fb_imageblit = cfb_imageblit;
	ACCESS_FBINFO(fbops).fb_cursor = NULL;

	accel = (ACCESS_FBINFO(fbcon).var.accel_flags & FB_ACCELF_TEXT) == FB_ACCELF_TEXT;

	switch (ACCESS_FBINFO(fbcon).var.bits_per_pixel) {
		case 4:		maccess = 0x00000000;	/* accelerate as 8bpp video */
				mpitch = (mpitch >> 1) | 0x8000; /* disable linearization */
				mopmode = M_OPMODE_4BPP;
				matrox_cfb4_pal(ACCESS_FBINFO(cmap));
				if (accel && !(mpitch & 1)) {
					ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_cfb4_copyarea;
					ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_cfb4_fillrect;
				}
				break;
		case 8:		maccess = 0x00000000;
				mopmode = M_OPMODE_8BPP;
				matrox_cfb8_pal(ACCESS_FBINFO(cmap));
				if (accel) {
					ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea;
					ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_fillrect;
					ACCESS_FBINFO(fbops).fb_imageblit = matroxfb_imageblit;
				}
				break;
		case 16:	if (ACCESS_FBINFO(fbcon).var.green.length == 5)
					maccess = 0xC0000001;
				else
					maccess = 0x40000001;
				mopmode = M_OPMODE_16BPP;
				if (accel) {
					ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea;
					ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_fillrect;
					ACCESS_FBINFO(fbops).fb_imageblit = matroxfb_imageblit;
				}
				break;
		case 24:	maccess = 0x00000003;
				mopmode = M_OPMODE_24BPP;
				if (accel) {
					ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea;
					ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_fillrect;
					ACCESS_FBINFO(fbops).fb_imageblit = matroxfb_imageblit;
				}
				break;
		case 32:	maccess = 0x00000002;
				mopmode = M_OPMODE_32BPP;
				if (accel) {
					ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea;
					ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_fillrect;
					ACCESS_FBINFO(fbops).fb_imageblit = matroxfb_imageblit;
				}
				break;
		default:	maccess = 0x00000000;
				mopmode = 0x00000000;
				break;	/* turn off acceleration!!! */
	}
	mga_fifo(8);
	mga_outl(M_PITCH, mpitch);
	mga_outl(M_YDSTORG, curr_ydstorg(MINFO));
	if (ACCESS_FBINFO(capable.plnwt))
		mga_outl(M_PLNWT, -1);
	if (ACCESS_FBINFO(capable.srcorg)) {
		mga_outl(M_SRCORG, 0);
		mga_outl(M_DSTORG, 0);
	}
	mga_outl(M_OPMODE, mopmode);
	mga_outl(M_CXBNDRY, 0xFFFF0000);
	mga_outl(M_YTOP, 0);
	mga_outl(M_YBOT, 0x01FFFFFF);
	mga_outl(M_MACCESS, maccess);
	ACCESS_FBINFO(accel.m_dwg_rect) = M_DWG_TRAP | M_DWG_SOLID | M_DWG_ARZERO | M_DWG_SGNZERO | M_DWG_SHIFTZERO;
	if (isMilleniumII(MINFO)) ACCESS_FBINFO(accel.m_dwg_rect) |= M_DWG_TRANSC;
	ACCESS_FBINFO(accel.m_opmode) = mopmode;
}

EXPORT_SYMBOL(matrox_cfbX_init);

static void matrox_accel_bmove(WPMINFO int vxres, int sy, int sx, int dy, int dx, int height, int width) {
	int start, end;
	CRITFLAGS

	DBG(__func__)

	CRITBEGIN

	if ((dy < sy) || ((dy == sy) && (dx <= sx))) {
		mga_fifo(2);
		mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_SGNZERO |
			 M_DWG_BFCOL | M_DWG_REPLACE);
		mga_outl(M_AR5, vxres);
		width--;
		start = sy*vxres+sx+curr_ydstorg(MINFO);
		end = start+width;
	} else {
		mga_fifo(3);
		mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_BFCOL | M_DWG_REPLACE);
		mga_outl(M_SGN, 5);
		mga_outl(M_AR5, -vxres);
		width--;
		end = (sy+height-1)*vxres+sx+curr_ydstorg(MINFO);
		start = end+width;
		dy += height-1;
	}
	mga_fifo(4);
	mga_outl(M_AR0, end);
	mga_outl(M_AR3, start);
	mga_outl(M_FXBNDRY, ((dx+width)<<16) | dx);
	mga_ydstlen(dy, height);
	WaitTillIdle();

	CRITEND
}

static void matrox_accel_bmove_lin(WPMINFO int vxres, int sy, int sx, int dy, int dx, int height, int width) {
	int start, end;
	CRITFLAGS

	DBG(__func__)

	CRITBEGIN

	if ((dy < sy) || ((dy == sy) && (dx <= sx))) {
		mga_fifo(2);
		mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_SGNZERO |
			M_DWG_BFCOL | M_DWG_REPLACE);
		mga_outl(M_AR5, vxres);
		width--;
		start = sy*vxres+sx+curr_ydstorg(MINFO);
		end = start+width;
	} else {
		mga_fifo(3);
		mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_BFCOL | M_DWG_REPLACE);
		mga_outl(M_SGN, 5);
		mga_outl(M_AR5, -vxres);
		width--;
		end = (sy+height-1)*vxres+sx+curr_ydstorg(MINFO);
		start = end+width;
		dy += height-1;
	}
	mga_fifo(5);
	mga_outl(M_AR0, end);
	mga_outl(M_AR3, start);
	mga_outl(M_FXBNDRY, ((dx+width)<<16) | dx);
	mga_outl(M_YDST, dy*vxres >> 5);
	mga_outl(M_LEN | M_EXEC, height);
	WaitTillIdle();

	CRITEND
}

static void matroxfb_cfb4_copyarea(struct fb_info* info, const struct fb_copyarea* area) {
	MINFO_FROM_INFO(info);

	if ((area->sx | area->dx | area->width) & 1)
		cfb_copyarea(info, area);
	else
		matrox_accel_bmove_lin(PMINFO ACCESS_FBINFO(fbcon.var.xres_virtual) >> 1, area->sy, area->sx >> 1, area->dy, area->dx >> 1, area->height, area->width >> 1);
}

static void matroxfb_copyarea(struct fb_info* info, const struct fb_copyarea* area) {
	MINFO_FROM_INFO(info);

	matrox_accel_bmove(PMINFO ACCESS_FBINFO(fbcon.var.xres_virtual), area->sy, area->sx, area->dy, area->dx, area->height, area->width);
}

static void matroxfb_accel_clear(WPMINFO u_int32_t color, int sy, int sx, int height,
		int width) {
	CRITFLAGS

	DBG(__func__)

	CRITBEGIN

	mga_fifo(5);
	mga_outl(M_DWGCTL, ACCESS_FBINFO(accel.m_dwg_rect) | M_DWG_REPLACE);
	mga_outl(M_FCOL, color);
	mga_outl(M_FXBNDRY, ((sx + width) << 16) | sx);
	mga_ydstlen(sy, height);
	WaitTillIdle();

	CRITEND
}

static void matroxfb_fillrect(struct fb_info* info, const struct fb_fillrect* rect) {
	MINFO_FROM_INFO(info);

	switch (rect->rop) {
		case ROP_COPY:
			matroxfb_accel_clear(PMINFO ((u_int32_t*)info->pseudo_palette)[rect->color], rect->dy, rect->dx, rect->height, rect->width);
			break;
	}
}

static void matroxfb_cfb4_clear(WPMINFO u_int32_t bgx, int sy, int sx, int height, int width) {
	int whattodo;
	CRITFLAGS

	DBG(__func__)

	CRITBEGIN

	whattodo = 0;
	if (sx & 1) {
		sx ++;
		if (!width) return;
		width --;
		whattodo = 1;
	}
	if (width & 1) {
		whattodo |= 2;
	}
	width >>= 1;
	sx >>= 1;
	if (width) {
		mga_fifo(5);
		mga_outl(M_DWGCTL, ACCESS_FBINFO(accel.m_dwg_rect) | M_DWG_REPLACE2);
		mga_outl(M_FCOL, bgx);
		mga_outl(M_FXBNDRY, ((sx + width) << 16) | sx);
		mga_outl(M_YDST, sy * ACCESS_FBINFO(fbcon).var.xres_virtual >> 6);
		mga_outl(M_LEN | M_EXEC, height);
		WaitTillIdle();
	}
	if (whattodo) {
		u_int32_t step = ACCESS_FBINFO(fbcon).var.xres_virtual >> 1;
		vaddr_t vbase = ACCESS_FBINFO(video.vbase);
		if (whattodo & 1) {
			unsigned int uaddr = sy * step + sx - 1;
			u_int32_t loop;
			u_int8_t bgx2 = bgx & 0xF0;
			for (loop = height; loop > 0; loop --) {
				mga_writeb(vbase, uaddr, (mga_readb(vbase, uaddr) & 0x0F) | bgx2);
				uaddr += step;
			}
		}
		if (whattodo & 2) {
			unsigned int uaddr = sy * step + sx + width;
			u_int32_t loop;
			u_int8_t bgx2 = bgx & 0x0F;
			for (loop = height; loop > 0; loop --) {
				mga_writeb(vbase, uaddr, (mga_readb(vbase, uaddr) & 0xF0) | bgx2);
				uaddr += step;
			}
		}
	}

	CRITEND
}

static void matroxfb_cfb4_fillrect(struct fb_info* info, const struct fb_fillrect* rect) {
	MINFO_FROM_INFO(info);

	switch (rect->rop) {
		case ROP_COPY:
			matroxfb_cfb4_clear(PMINFO ((u_int32_t*)info->pseudo_palette)[rect->color], rect->dy, rect->dx, rect->height, rect->width);
			break;
	}
}

static void matroxfb_1bpp_imageblit(WPMINFO u_int32_t fgx, u_int32_t bgx,
		const u_int8_t* chardata, int width, int height, int yy, int xx) {
	u_int32_t step;
	u_int32_t ydstlen;
	u_int32_t xlen;
	u_int32_t ar0;
	u_int32_t charcell;
	u_int32_t fxbndry;
	vaddr_t mmio;
	int easy;
	CRITFLAGS

	DBG_HEAVY(__func__);

	step = (width + 7) >> 3;
	charcell = height * step;
	xlen = (charcell + 3) & ~3;
	ydstlen = (yy << 16) | height;
	if (width == step << 3) {
		ar0 = height * width - 1;
		easy = 1;
	} else {
		ar0 = width - 1;
		easy = 0;
	}

	CRITBEGIN

	mga_fifo(3);
	if (easy)
		mga_outl(M_DWGCTL, M_DWG_ILOAD | M_DWG_SGNZERO | M_DWG_SHIFTZERO | M_DWG_BMONOWF | M_DWG_LINEAR | M_DWG_REPLACE);
	else
		mga_outl(M_DWGCTL, M_DWG_ILOAD | M_DWG_SGNZERO | M_DWG_SHIFTZERO | M_DWG_BMONOWF | M_DWG_REPLACE);
	mga_outl(M_FCOL, fgx);
	mga_outl(M_BCOL, bgx);
	fxbndry = ((xx + width - 1) << 16) | xx;
	mmio = ACCESS_FBINFO(mmio.vbase);

	mga_fifo(6);
	mga_writel(mmio, M_FXBNDRY, fxbndry);
	mga_writel(mmio, M_AR0, ar0);
	mga_writel(mmio, M_AR3, 0);
	if (easy) {
		mga_writel(mmio, M_YDSTLEN | M_EXEC, ydstlen);
		mga_memcpy_toio(mmio, chardata, xlen);
	} else {
		mga_writel(mmio, M_AR5, 0);
		mga_writel(mmio, M_YDSTLEN | M_EXEC, ydstlen);
		if ((step & 3) == 0) {
			/* Great. Source has 32bit aligned lines, so we can feed them
			   directly to the accelerator. */
			mga_memcpy_toio(mmio, chardata, charcell);
		} else if (step == 1) {
			/* Special case for 1..8bit widths */
			while (height--) {
#if defined(__BIG_ENDIAN)
				fb_writel((*chardata) << 24, mmio.vaddr);
#else
				fb_writel(*chardata, mmio.vaddr);
#endif
				chardata++;
			}
		} else if (step == 2) {
			/* Special case for 9..15bit widths */
			while (height--) {
#if defined(__BIG_ENDIAN)
				fb_writel((*(u_int16_t*)chardata) << 16, mmio.vaddr);
#else
				fb_writel(*(u_int16_t*)chardata, mmio.vaddr);
#endif
				chardata += 2;
			}
		} else {
			/* Tell... well, why bother... */
			while (height--) {
				size_t i;
				
				for (i = 0; i < step; i += 4) {
					/* Hope that there are at least three readable bytes beyond the end of bitmap */
					fb_writel(get_unaligned((u_int32_t*)(chardata + i)),mmio.vaddr);
				}
				chardata += step;
			}
		}
	}
	WaitTillIdle();
	CRITEND
}


static void matroxfb_imageblit(struct fb_info* info, const struct fb_image* image) {
	MINFO_FROM_INFO(info);

	DBG_HEAVY(__func__);

	if (image->depth == 1) {
		u_int32_t fgx, bgx;

		fgx = ((u_int32_t*)info->pseudo_palette)[image->fg_color];
		bgx = ((u_int32_t*)info->pseudo_palette)[image->bg_color];
		matroxfb_1bpp_imageblit(PMINFO fgx, bgx, image->data, image->width, image->height, image->dy, image->dx);
	} else {
		/* Danger! image->depth is useless: logo painting code always
		   passes framebuffer color depth here, although logo data are
		   always 8bpp and info->pseudo_palette is changed to contain
		   logo palette to be used (but only for true/direct-color... sic...).
		   So do it completely in software... */
		cfb_imageblit(info, image);
	}
}

MODULE_LICENSE("GPL");
Commit	Line	Data
1da177e4 LT	1	/*
	2	*
	3	* Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200 and G400
	4	*
	5	* (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
	6	*
	7	* Version: 1.65 2002/08/14
	8	*
	9	* MTRR stuff: 1998 Tom Rini <trini@kernel.crashing.org>
	10	*
	11	* Contributors: "menion?" <menion@mindless.com>
	12	* Betatesting, fixes, ideas
	13	*
	14	* "Kurt Garloff" <garloff@suse.de>
	15	* Betatesting, fixes, ideas, videomodes, videomodes timmings
	16	*
	17	* "Tom Rini" <trini@kernel.crashing.org>
	18	* MTRR stuff, PPC cleanups, betatesting, fixes, ideas
	19	*
	20	* "Bibek Sahu" <scorpio@dodds.net>
	21	* Access device through readb\|w\|l and write b\|w\|l
	22	* Extensive debugging stuff
	23	*
	24	* "Daniel Haun" <haund@usa.net>
	25	* Testing, hardware cursor fixes
	26	*
	27	* "Scott Wood" <sawst46+@pitt.edu>
	28	* Fixes
	29	*
	30	* "Gerd Knorr" <kraxel@goldbach.isdn.cs.tu-berlin.de>
	31	* Betatesting
	32	*
	33	* "Kelly French" <targon@hazmat.com>
	34	* "Fernando Herrera" <fherrera@eurielec.etsit.upm.es>
	35	* Betatesting, bug reporting
	36	*
	37	* "Pablo Bianucci" <pbian@pccp.com.ar>
	38	* Fixes, ideas, betatesting
	39	*
	40	* "Inaky Perez Gonzalez" <inaky@peloncho.fis.ucm.es>
	41	* Fixes, enhandcements, ideas, betatesting
	42	*
	43	* "Ryuichi Oikawa" <roikawa@rr.iiij4u.or.jp>
	44	* PPC betatesting, PPC support, backward compatibility
	45	*
	46	* "Paul Womar" <Paul@pwomar.demon.co.uk>
	47	* "Owen Waller" <O.Waller@ee.qub.ac.uk>
	48	* PPC betatesting
	49	*
	50	* "Thomas Pornin" <pornin@bolet.ens.fr>
	51	* Alpha betatesting
	52	*
	53	* "Pieter van Leuven" <pvl@iae.nl>
	54	* "Ulf Jaenicke-Roessler" <ujr@physik.phy.tu-dresden.de>
	55	* G100 testing
	56	*
	57	* "H. Peter Arvin" <hpa@transmeta.com>
	58	* Ideas
	59	*
	60	* "Cort Dougan" <cort@cs.nmt.edu>
	61	* CHRP fixes and PReP cleanup
	62	*
	63	* "Mark Vojkovich" <mvojkovi@ucsd.edu>
	64	* G400 support
65	*
66	* (following author is not in any relation with this code, but his code
67	* is included in this driver)
68	*
69	* Based on framebuffer driver for VBE 2.0 compliant graphic boards
70	* (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
71	*
72	* (following author is not in any relation with this code, but his ideas
beb7dd86	73	* were used when writing this driver)
1da177e4 LT	74	*
	75	* FreeVBE/AF (Matrox), "Shawn Hargreaves" <shawn@talula.demon.co.uk>
	76	*
	77	*/
	78
	79	#include "matroxfb_accel.h"
	80	#include "matroxfb_DAC1064.h"
	81	#include "matroxfb_Ti3026.h"
	82	#include "matroxfb_misc.h"
	83
	84	#define curr_ydstorg(x) ACCESS_FBINFO2(x, curr.ydstorg.pixels)
	85
	86	#define mga_ydstlen(y,l) mga_outl(M_YDSTLEN \| M_EXEC, ((y) << 16) \| (l))
	87
	88	static inline void matrox_cfb4_pal(u_int32_t* pal) {
	89	unsigned int i;
	90
	91	for (i = 0; i < 16; i++) {
	92	pal[i] = i * 0x11111111U;
	93	}
1da177e4 LT	94	}
	95
	96	static inline void matrox_cfb8_pal(u_int32_t* pal) {
	97	unsigned int i;
	98
	99	for (i = 0; i < 16; i++) {
	100	pal[i] = i * 0x01010101U;
	101	}
1da177e4 LT	102	}
	103
	104	static void matroxfb_copyarea(struct fb_info* info, const struct fb_copyarea* area);
	105	static void matroxfb_fillrect(struct fb_info* info, const struct fb_fillrect* rect);
	106	static void matroxfb_imageblit(struct fb_info* info, const struct fb_image* image);
	107	static void matroxfb_cfb4_fillrect(struct fb_info* info, const struct fb_fillrect* rect);
	108	static void matroxfb_cfb4_copyarea(struct fb_info* info, const struct fb_copyarea* area);
	109
	110	void matrox_cfbX_init(WPMINFO2) {
	111	u_int32_t maccess;
	112	u_int32_t mpitch;
	113	u_int32_t mopmode;
	114	int accel;
	115
5ae12170	116	DBG(__func__)
1da177e4 LT	117
	118	mpitch = ACCESS_FBINFO(fbcon).var.xres_virtual;
	119
	120	ACCESS_FBINFO(fbops).fb_copyarea = cfb_copyarea;
	121	ACCESS_FBINFO(fbops).fb_fillrect = cfb_fillrect;
	122	ACCESS_FBINFO(fbops).fb_imageblit = cfb_imageblit;
c465e05a	123	ACCESS_FBINFO(fbops).fb_cursor = NULL;
1da177e4 LT	124
	125	accel = (ACCESS_FBINFO(fbcon).var.accel_flags & FB_ACCELF_TEXT) == FB_ACCELF_TEXT;
	126
	127	switch (ACCESS_FBINFO(fbcon).var.bits_per_pixel) {
	128	case 4: maccess = 0x00000000; /* accelerate as 8bpp video */
	129	mpitch = (mpitch >> 1) \| 0x8000; /* disable linearization */
	130	mopmode = M_OPMODE_4BPP;
	131	matrox_cfb4_pal(ACCESS_FBINFO(cmap));
	132	if (accel && !(mpitch & 1)) {
	133	ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_cfb4_copyarea;
	134	ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_cfb4_fillrect;
	135	}
	136	break;
	137	case 8: maccess = 0x00000000;
	138	mopmode = M_OPMODE_8BPP;
	139	matrox_cfb8_pal(ACCESS_FBINFO(cmap));
	140	if (accel) {
	141	ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea;
	142	ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_fillrect;
	143	ACCESS_FBINFO(fbops).fb_imageblit = matroxfb_imageblit;
	144	}
	145	break;
08a498de	146	case 16: if (ACCESS_FBINFO(fbcon).var.green.length == 5)
1da177e4	147	maccess = 0xC0000001;
08a498de	148	else
1da177e4	149	maccess = 0x40000001;
1da177e4 LT	150	mopmode = M_OPMODE_16BPP;
	151	if (accel) {
	152	ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea;
	153	ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_fillrect;
	154	ACCESS_FBINFO(fbops).fb_imageblit = matroxfb_imageblit;
	155	}
	156	break;
	157	case 24: maccess = 0x00000003;
	158	mopmode = M_OPMODE_24BPP;
1da177e4 LT	159	if (accel) {
	160	ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea;
	161	ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_fillrect;
	162	ACCESS_FBINFO(fbops).fb_imageblit = matroxfb_imageblit;
	163	}
	164	break;
	165	case 32: maccess = 0x00000002;
	166	mopmode = M_OPMODE_32BPP;
1da177e4 LT	167	if (accel) {
	168	ACCESS_FBINFO(fbops).fb_copyarea = matroxfb_copyarea;
	169	ACCESS_FBINFO(fbops).fb_fillrect = matroxfb_fillrect;
	170	ACCESS_FBINFO(fbops).fb_imageblit = matroxfb_imageblit;
	171	}
	172	break;
	173	default: maccess = 0x00000000;
	174	mopmode = 0x00000000;
	175	break; /* turn off acceleration!!! */
	176	}
	177	mga_fifo(8);
	178	mga_outl(M_PITCH, mpitch);
	179	mga_outl(M_YDSTORG, curr_ydstorg(MINFO));
	180	if (ACCESS_FBINFO(capable.plnwt))
	181	mga_outl(M_PLNWT, -1);
	182	if (ACCESS_FBINFO(capable.srcorg)) {
	183	mga_outl(M_SRCORG, 0);
	184	mga_outl(M_DSTORG, 0);
	185	}
	186	mga_outl(M_OPMODE, mopmode);
	187	mga_outl(M_CXBNDRY, 0xFFFF0000);
	188	mga_outl(M_YTOP, 0);
	189	mga_outl(M_YBOT, 0x01FFFFFF);
	190	mga_outl(M_MACCESS, maccess);
	191	ACCESS_FBINFO(accel.m_dwg_rect) = M_DWG_TRAP \| M_DWG_SOLID \| M_DWG_ARZERO \| M_DWG_SGNZERO \| M_DWG_SHIFTZERO;
	192	if (isMilleniumII(MINFO)) ACCESS_FBINFO(accel.m_dwg_rect) \|= M_DWG_TRANSC;
	193	ACCESS_FBINFO(accel.m_opmode) = mopmode;
	194	}
	195
	196	EXPORT_SYMBOL(matrox_cfbX_init);
	197
	198	static void matrox_accel_bmove(WPMINFO int vxres, int sy, int sx, int dy, int dx, int height, int width) {
	199	int start, end;
	200	CRITFLAGS
	201
5ae12170	202	DBG(__func__)
1da177e4 LT	203
	204	CRITBEGIN
	205
	206	if ((dy < sy) \|\| ((dy == sy) && (dx <= sx))) {
	207	mga_fifo(2);
	208	mga_outl(M_DWGCTL, M_DWG_BITBLT \| M_DWG_SHIFTZERO \| M_DWG_SGNZERO \|
	209	M_DWG_BFCOL \| M_DWG_REPLACE);
	210	mga_outl(M_AR5, vxres);
	211	width--;
	212	start = sy*vxres+sx+curr_ydstorg(MINFO);
	213	end = start+width;
	214	} else {
	215	mga_fifo(3);
	216	mga_outl(M_DWGCTL, M_DWG_BITBLT \| M_DWG_SHIFTZERO \| M_DWG_BFCOL \| M_DWG_REPLACE);
	217	mga_outl(M_SGN, 5);
	218	mga_outl(M_AR5, -vxres);
	219	width--;
	220	end = (sy+height-1)*vxres+sx+curr_ydstorg(MINFO);
	221	start = end+width;
	222	dy += height-1;
	223	}
	224	mga_fifo(4);
	225	mga_outl(M_AR0, end);
	226	mga_outl(M_AR3, start);
	227	mga_outl(M_FXBNDRY, ((dx+width)<<16) \| dx);
	228	mga_ydstlen(dy, height);
	229	WaitTillIdle();
	230
	231	CRITEND
	232	}
	233
	234	static void matrox_accel_bmove_lin(WPMINFO int vxres, int sy, int sx, int dy, int dx, int height, int width) {
	235	int start, end;
	236	CRITFLAGS
	237
5ae12170	238	DBG(__func__)
1da177e4 LT	239
	240	CRITBEGIN
	241
	242	if ((dy < sy) \|\| ((dy == sy) && (dx <= sx))) {
	243	mga_fifo(2);
	244	mga_outl(M_DWGCTL, M_DWG_BITBLT \| M_DWG_SHIFTZERO \| M_DWG_SGNZERO \|
	245	M_DWG_BFCOL \| M_DWG_REPLACE);
	246	mga_outl(M_AR5, vxres);
	247	width--;
	248	start = sy*vxres+sx+curr_ydstorg(MINFO);
	249	end = start+width;
	250	} else {
	251	mga_fifo(3);
	252	mga_outl(M_DWGCTL, M_DWG_BITBLT \| M_DWG_SHIFTZERO \| M_DWG_BFCOL \| M_DWG_REPLACE);
	253	mga_outl(M_SGN, 5);
	254	mga_outl(M_AR5, -vxres);
	255	width--;
	256	end = (sy+height-1)*vxres+sx+curr_ydstorg(MINFO);
	257	start = end+width;
	258	dy += height-1;
	259	}
	260	mga_fifo(5);
	261	mga_outl(M_AR0, end);
	262	mga_outl(M_AR3, start);
	263	mga_outl(M_FXBNDRY, ((dx+width)<<16) \| dx);
	264	mga_outl(M_YDST, dy*vxres >> 5);
	265	mga_outl(M_LEN \| M_EXEC, height);
	266	WaitTillIdle();
	267
	268	CRITEND
	269	}
	270
	271	static void matroxfb_cfb4_copyarea(struct fb_info* info, const struct fb_copyarea* area) {
	272	MINFO_FROM_INFO(info);
	273
	274	if ((area->sx \| area->dx \| area->width) & 1)
	275	cfb_copyarea(info, area);
	276	else
	277	matrox_accel_bmove_lin(PMINFO ACCESS_FBINFO(fbcon.var.xres_virtual) >> 1, area->sy, area->sx >> 1, area->dy, area->dx >> 1, area->height, area->width >> 1);
	278	}
	279
	280	static void matroxfb_copyarea(struct fb_info* info, const struct fb_copyarea* area) {
	281	MINFO_FROM_INFO(info);
	282
	283	matrox_accel_bmove(PMINFO ACCESS_FBINFO(fbcon.var.xres_virtual), area->sy, area->sx, area->dy, area->dx, area->height, area->width);
	284	}
	285
	286	static void matroxfb_accel_clear(WPMINFO u_int32_t color, int sy, int sx, int height,
	287	int width) {
	288	CRITFLAGS
	289
5ae12170	290	DBG(__func__)
1da177e4 LT	291
	292	CRITBEGIN
	293
	294	mga_fifo(5);
	295	mga_outl(M_DWGCTL, ACCESS_FBINFO(accel.m_dwg_rect) \| M_DWG_REPLACE);
	296	mga_outl(M_FCOL, color);
	297	mga_outl(M_FXBNDRY, ((sx + width) << 16) \| sx);
	298	mga_ydstlen(sy, height);
	299	WaitTillIdle();
	300
	301	CRITEND
	302	}
	303
	304	static void matroxfb_fillrect(struct fb_info* info, const struct fb_fillrect* rect) {
	305	MINFO_FROM_INFO(info);
	306
	307	switch (rect->rop) {
	308	case ROP_COPY:
	309	matroxfb_accel_clear(PMINFO ((u_int32_t*)info->pseudo_palette)[rect->color], rect->dy, rect->dx, rect->height, rect->width);
	310	break;
	311	}
	312	}
	313
	314	static void matroxfb_cfb4_clear(WPMINFO u_int32_t bgx, int sy, int sx, int height, int width) {
	315	int whattodo;
	316	CRITFLAGS
	317
5ae12170	318	DBG(__func__)
1da177e4 LT	319
	320	CRITBEGIN
	321
	322	whattodo = 0;
	323	if (sx & 1) {
	324	sx ++;
	325	if (!width) return;
	326	width --;
	327	whattodo = 1;
	328	}
	329	if (width & 1) {
	330	whattodo \|= 2;
	331	}
	332	width >>= 1;
	333	sx >>= 1;
	334	if (width) {
	335	mga_fifo(5);
	336	mga_outl(M_DWGCTL, ACCESS_FBINFO(accel.m_dwg_rect) \| M_DWG_REPLACE2);
	337	mga_outl(M_FCOL, bgx);
	338	mga_outl(M_FXBNDRY, ((sx + width) << 16) \| sx);
	339	mga_outl(M_YDST, sy * ACCESS_FBINFO(fbcon).var.xres_virtual >> 6);
	340	mga_outl(M_LEN \| M_EXEC, height);
	341	WaitTillIdle();
	342	}
	343	if (whattodo) {
	344	u_int32_t step = ACCESS_FBINFO(fbcon).var.xres_virtual >> 1;
	345	vaddr_t vbase = ACCESS_FBINFO(video.vbase);
	346	if (whattodo & 1) {
	347	unsigned int uaddr = sy * step + sx - 1;
	348	u_int32_t loop;
	349	u_int8_t bgx2 = bgx & 0xF0;
	350	for (loop = height; loop > 0; loop --) {
	351	mga_writeb(vbase, uaddr, (mga_readb(vbase, uaddr) & 0x0F) \| bgx2);
	352	uaddr += step;
	353	}
	354	}
	355	if (whattodo & 2) {
	356	unsigned int uaddr = sy * step + sx + width;
	357	u_int32_t loop;
	358	u_int8_t bgx2 = bgx & 0x0F;
	359	for (loop = height; loop > 0; loop --) {
	360	mga_writeb(vbase, uaddr, (mga_readb(vbase, uaddr) & 0xF0) \| bgx2);
	361	uaddr += step;
	362	}
	363	}
	364	}
	365
	366	CRITEND
	367	}
	368
	369	static void matroxfb_cfb4_fillrect(struct fb_info* info, const struct fb_fillrect* rect) {
	370	MINFO_FROM_INFO(info);
	371
	372	switch (rect->rop) {
	373	case ROP_COPY:
	374	matroxfb_cfb4_clear(PMINFO ((u_int32_t*)info->pseudo_palette)[rect->color], rect->dy, rect->dx, rect->height, rect->width);
	375	break;
	376	}
	377	}
	378
	379	static void matroxfb_1bpp_imageblit(WPMINFO u_int32_t fgx, u_int32_t bgx,
	380	const u_int8_t* chardata, int width, int height, int yy, int xx) {
	381	u_int32_t step;
	382	u_int32_t ydstlen;
383	u_int32_t xlen;
384	u_int32_t ar0;
385	u_int32_t charcell;
386	u_int32_t fxbndry;
387	vaddr_t mmio;
388	int easy;
389	CRITFLAGS
390
5ae12170	391	DBG_HEAVY(__func__);
1da177e4 LT	392
	393	step = (width + 7) >> 3;
	394	charcell = height * step;
	395	xlen = (charcell + 3) & ~3;
	396	ydstlen = (yy << 16) \| height;
	397	if (width == step << 3) {
	398	ar0 = height * width - 1;
	399	easy = 1;
	400	} else {
	401	ar0 = width - 1;
	402	easy = 0;
	403	}
	404
	405	CRITBEGIN
	406
	407	mga_fifo(3);
	408	if (easy)
	409	mga_outl(M_DWGCTL, M_DWG_ILOAD \| M_DWG_SGNZERO \| M_DWG_SHIFTZERO \| M_DWG_BMONOWF \| M_DWG_LINEAR \| M_DWG_REPLACE);
	410	else
	411	mga_outl(M_DWGCTL, M_DWG_ILOAD \| M_DWG_SGNZERO \| M_DWG_SHIFTZERO \| M_DWG_BMONOWF \| M_DWG_REPLACE);
	412	mga_outl(M_FCOL, fgx);
	413	mga_outl(M_BCOL, bgx);
	414	fxbndry = ((xx + width - 1) << 16) \| xx;
	415	mmio = ACCESS_FBINFO(mmio.vbase);
	416
	417	mga_fifo(6);
	418	mga_writel(mmio, M_FXBNDRY, fxbndry);
	419	mga_writel(mmio, M_AR0, ar0);
	420	mga_writel(mmio, M_AR3, 0);
	421	if (easy) {
	422	mga_writel(mmio, M_YDSTLEN \| M_EXEC, ydstlen);
	423	mga_memcpy_toio(mmio, chardata, xlen);
	424	} else {
	425	mga_writel(mmio, M_AR5, 0);
	426	mga_writel(mmio, M_YDSTLEN \| M_EXEC, ydstlen);
	427	if ((step & 3) == 0) {
	428	/* Great. Source has 32bit aligned lines, so we can feed them
	429	directly to the accelerator. */
	430	mga_memcpy_toio(mmio, chardata, charcell);
	431	} else if (step == 1) {
	432	/* Special case for 1..8bit widths */
	433	while (height--) {
	434	#if defined(__BIG_ENDIAN)
	435	fb_writel((*chardata) << 24, mmio.vaddr);
	436	#else
	437	fb_writel(*chardata, mmio.vaddr);
	438	#endif
	439	chardata++;
	440	}
	441	} else if (step == 2) {
	442	/* Special case for 9..15bit widths */
	443	while (height--) {
	444	#if defined(__BIG_ENDIAN)
	445	fb_writel(((u_int16_t)chardata) << 16, mmio.vaddr);
	446	#else
	447	fb_writel((u_int16_t)chardata, mmio.vaddr);
	448	#endif
	449	chardata += 2;
	450	}
	451	} else {
	452	/* Tell... well, why bother... */
	453	while (height--) {
	454	size_t i;
	455
456	for (i = 0; i < step; i += 4) {
457	/* Hope that there are at least three readable bytes beyond the end of bitmap */
458	fb_writel(get_unaligned((u_int32_t*)(chardata + i)),mmio.vaddr);
459	}
460	chardata += step;
461	}
462	}
463	}
464	WaitTillIdle();
465	CRITEND
466	}
467
468
469	static void matroxfb_imageblit(struct fb_info* info, const struct fb_image* image) {
470	MINFO_FROM_INFO(info);
471
5ae12170	472	DBG_HEAVY(__func__);
1da177e4 LT	473
	474	if (image->depth == 1) {
	475	u_int32_t fgx, bgx;
	476
	477	fgx = ((u_int32_t*)info->pseudo_palette)[image->fg_color];
	478	bgx = ((u_int32_t*)info->pseudo_palette)[image->bg_color];
	479	matroxfb_1bpp_imageblit(PMINFO fgx, bgx, image->data, image->width, image->height, image->dy, image->dx);
	480	} else {
	481	/* Danger! image->depth is useless: logo painting code always
	482	passes framebuffer color depth here, although logo data are
	483	always 8bpp and info->pseudo_palette is changed to contain
	484	logo palette to be used (but only for true/direct-color... sic...).
	485	So do it completely in software... */
	486	cfb_imageblit(info, image);
	487	}
	488	}
	489
	490	MODULE_LICENSE("GPL");