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linux/drivers/video/matrox/matroxfb_accel.c
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2 
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

498 lines
14 KiB
C
Raw Blame History

/*
*
* 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 writting 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;
}
pal[i] = 0xFFFFFFFF;
}
static inline void matrox_cfb8_pal(u_int32_t* pal) {
unsigned int i;
for (i = 0; i < 16; i++) {
pal[i] = i * 0x01010101U;
}
pal[i] = 0x0F0F0F0F;
}
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(__FUNCTION__)
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 = soft_cursor;
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;
ACCESS_FBINFO(cmap[16]) = 0x7FFF7FFF;
} else {
maccess = 0x40000001;
ACCESS_FBINFO(cmap[16]) = 0xFFFFFFFF;
}
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;
ACCESS_FBINFO(cmap[16]) = 0xFFFFFFFF;
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;
ACCESS_FBINFO(cmap[16]) = 0xFFFFFFFF;
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(__FUNCTION__)
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(__FUNCTION__)
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(__FUNCTION__)
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(__FUNCTION__)
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(__FUNCTION__);
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(__FUNCTION__);
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");
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