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path: root/drivers/video/fbdev/matrox/matroxfb_accel.c
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Diffstat (limited to 'drivers/video/fbdev/matrox/matroxfb_accel.c')
-rw-r--r--drivers/video/fbdev/matrox/matroxfb_accel.c519
1 files changed, 519 insertions, 0 deletions
diff --git a/drivers/video/fbdev/matrox/matroxfb_accel.c b/drivers/video/fbdev/matrox/matroxfb_accel.c
new file mode 100644
index 00000000000..0d5cb85d071
--- /dev/null
+++ b/drivers/video/fbdev/matrox/matroxfb_accel.c
@@ -0,0 +1,519 @@
+/*
+ *
+ * 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) ((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(struct matrox_fb_info *minfo)
+{
+ u_int32_t maccess;
+ u_int32_t mpitch;
+ u_int32_t mopmode;
+ int accel;
+
+ DBG(__func__)
+
+ mpitch = minfo->fbcon.var.xres_virtual;
+
+ minfo->fbops.fb_copyarea = cfb_copyarea;
+ minfo->fbops.fb_fillrect = cfb_fillrect;
+ minfo->fbops.fb_imageblit = cfb_imageblit;
+ minfo->fbops.fb_cursor = NULL;
+
+ accel = (minfo->fbcon.var.accel_flags & FB_ACCELF_TEXT) == FB_ACCELF_TEXT;
+
+ switch (minfo->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(minfo->cmap);
+ if (accel && !(mpitch & 1)) {
+ minfo->fbops.fb_copyarea = matroxfb_cfb4_copyarea;
+ minfo->fbops.fb_fillrect = matroxfb_cfb4_fillrect;
+ }
+ break;
+ case 8: maccess = 0x00000000;
+ mopmode = M_OPMODE_8BPP;
+ matrox_cfb8_pal(minfo->cmap);
+ if (accel) {
+ minfo->fbops.fb_copyarea = matroxfb_copyarea;
+ minfo->fbops.fb_fillrect = matroxfb_fillrect;
+ minfo->fbops.fb_imageblit = matroxfb_imageblit;
+ }
+ break;
+ case 16: if (minfo->fbcon.var.green.length == 5)
+ maccess = 0xC0000001;
+ else
+ maccess = 0x40000001;
+ mopmode = M_OPMODE_16BPP;
+ if (accel) {
+ minfo->fbops.fb_copyarea = matroxfb_copyarea;
+ minfo->fbops.fb_fillrect = matroxfb_fillrect;
+ minfo->fbops.fb_imageblit = matroxfb_imageblit;
+ }
+ break;
+ case 24: maccess = 0x00000003;
+ mopmode = M_OPMODE_24BPP;
+ if (accel) {
+ minfo->fbops.fb_copyarea = matroxfb_copyarea;
+ minfo->fbops.fb_fillrect = matroxfb_fillrect;
+ minfo->fbops.fb_imageblit = matroxfb_imageblit;
+ }
+ break;
+ case 32: maccess = 0x00000002;
+ mopmode = M_OPMODE_32BPP;
+ if (accel) {
+ minfo->fbops.fb_copyarea = matroxfb_copyarea;
+ minfo->fbops.fb_fillrect = matroxfb_fillrect;
+ minfo->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 (minfo->capable.plnwt)
+ mga_outl(M_PLNWT, -1);
+ if (minfo->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);
+ minfo->accel.m_dwg_rect = M_DWG_TRAP | M_DWG_SOLID | M_DWG_ARZERO | M_DWG_SGNZERO | M_DWG_SHIFTZERO;
+ if (isMilleniumII(minfo)) minfo->accel.m_dwg_rect |= M_DWG_TRANSC;
+ minfo->accel.m_opmode = mopmode;
+ minfo->accel.m_access = maccess;
+ minfo->accel.m_pitch = mpitch;
+}
+
+EXPORT_SYMBOL(matrox_cfbX_init);
+
+static void matrox_accel_restore_maccess(struct matrox_fb_info *minfo)
+{
+ mga_outl(M_MACCESS, minfo->accel.m_access);
+ mga_outl(M_PITCH, minfo->accel.m_pitch);
+}
+
+static void matrox_accel_bmove(struct matrox_fb_info *minfo, 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(4);
+ matrox_accel_restore_maccess(minfo);
+ 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(5);
+ matrox_accel_restore_maccess(minfo);
+ 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(6);
+ matrox_accel_restore_maccess(minfo);
+ 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(struct matrox_fb_info *minfo, 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(4);
+ matrox_accel_restore_maccess(minfo);
+ 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(5);
+ matrox_accel_restore_maccess(minfo);
+ 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(7);
+ matrox_accel_restore_maccess(minfo);
+ 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) {
+ struct matrox_fb_info *minfo = info2minfo(info);
+
+ if ((area->sx | area->dx | area->width) & 1)
+ cfb_copyarea(info, area);
+ else
+ matrox_accel_bmove_lin(minfo, minfo->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) {
+ struct matrox_fb_info *minfo = info2minfo(info);
+
+ matrox_accel_bmove(minfo, minfo->fbcon.var.xres_virtual, area->sy, area->sx, area->dy, area->dx, area->height, area->width);
+}
+
+static void matroxfb_accel_clear(struct matrox_fb_info *minfo, u_int32_t color,
+ int sy, int sx, int height, int width)
+{
+ CRITFLAGS
+
+ DBG(__func__)
+
+ CRITBEGIN
+
+ mga_fifo(7);
+ matrox_accel_restore_maccess(minfo);
+ mga_outl(M_DWGCTL, minfo->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) {
+ struct matrox_fb_info *minfo = info2minfo(info);
+
+ switch (rect->rop) {
+ case ROP_COPY:
+ matroxfb_accel_clear(minfo, ((u_int32_t *)info->pseudo_palette)[rect->color], rect->dy, rect->dx, rect->height, rect->width);
+ break;
+ }
+}
+
+static void matroxfb_cfb4_clear(struct matrox_fb_info *minfo, 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(7);
+ matrox_accel_restore_maccess(minfo);
+ mga_outl(M_DWGCTL, minfo->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 * minfo->fbcon.var.xres_virtual >> 6);
+ mga_outl(M_LEN | M_EXEC, height);
+ WaitTillIdle();
+ }
+ if (whattodo) {
+ u_int32_t step = minfo->fbcon.var.xres_virtual >> 1;
+ vaddr_t vbase = minfo->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) {
+ struct matrox_fb_info *minfo = info2minfo(info);
+
+ switch (rect->rop) {
+ case ROP_COPY:
+ matroxfb_cfb4_clear(minfo, ((u_int32_t *)info->pseudo_palette)[rect->color], rect->dy, rect->dx, rect->height, rect->width);
+ break;
+ }
+}
+
+static void matroxfb_1bpp_imageblit(struct matrox_fb_info *minfo, 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(5);
+ matrox_accel_restore_maccess(minfo);
+ 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 = minfo->mmio.vbase;
+
+ mga_fifo(8);
+ matrox_accel_restore_maccess(minfo);
+ 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) {
+ struct matrox_fb_info *minfo = info2minfo(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(minfo, 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");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-27 05:00:51 +0000