tridentfb: acceleration code improvements
This patch brings various acceleration improvements: - set copyarea/fillrect for non-accelerated framebuffer (fix) - remove 15 bpp depth handling to simplify code as it hardly works (15 bpp handling was obviously missing in some switches) - add fb_sync call and move waiting before accelerated function to make acceleration more asynchronous to cpu (few % of speed improvement) - add cpu_relax() call in waiting loops - make longer register names and name more registers - move registers' definition to header - general code improvements (shortening, simplifying) Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Krzysztof Helt
Linus Torvalds
parent
bcac2d5fe3
commit
49b1f4b44b
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@ -1,5 +1,5 @@
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/*
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* Frame buffer driver for Trident Blade and Image series
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* Frame buffer driver for Trident TGUI, Blade and Image series
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*
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* Copyright 2001, 2002 - Jani Monoses <jani@iv.ro>
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*
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@ -13,7 +13,6 @@
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* code, suggestions
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* TODO:
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* timing value tweaking so it looks good on every monitor in every mode
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* TGUI acceleration
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*/
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#include <linux/module.h>
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@ -193,37 +192,13 @@ static inline u32 readmmr(struct tridentfb_par *par, u16 r)
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*/
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#define point(x, y) ((y) << 16 | (x))
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#define STA 0x2120
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#define CMD 0x2144
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#define ROP 0x2148
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#define CLR 0x2160
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#define SR1 0x2100
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#define SR2 0x2104
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#define DR1 0x2108
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#define DR2 0x210C
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#define ROP_S 0xCC
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static void blade_init_accel(struct tridentfb_par *par, int pitch, int bpp)
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{
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int v1 = (pitch >> 3) << 20;
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int tmp = 0, v2;
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switch (bpp) {
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case 8:
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tmp = 0;
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break;
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case 15:
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tmp = 5;
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break;
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case 16:
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tmp = 1;
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break;
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case 24:
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case 32:
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tmp = 2;
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break;
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}
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v2 = v1 | (tmp << 29);
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int tmp = bpp == 24 ? 2 : (bpp >> 4);
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int v2 = v1 | (tmp << 29);
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writemmr(par, 0x21C0, v2);
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writemmr(par, 0x21C4, v2);
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writemmr(par, 0x21B8, v2);
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@ -237,29 +212,29 @@ static void blade_init_accel(struct tridentfb_par *par, int pitch, int bpp)
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static void blade_wait_engine(struct tridentfb_par *par)
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{
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while (readmmr(par, STA) & 0xFA800000) ;
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while (readmmr(par, STATUS) & 0xFA800000)
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cpu_relax();
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}
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static void blade_fill_rect(struct tridentfb_par *par,
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u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
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{
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writemmr(par, CLR, c);
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writemmr(par, ROP, rop ? 0x66 : ROP_S);
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writemmr(par, COLOR, c);
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writemmr(par, ROP, rop ? ROP_X : ROP_S);
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writemmr(par, CMD, 0x20000000 | 1 << 19 | 1 << 4 | 2 << 2);
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writemmr(par, DR1, point(x, y));
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writemmr(par, DR2, point(x + w - 1, y + h - 1));
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writemmr(par, DST1, point(x, y));
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writemmr(par, DST2, point(x + w - 1, y + h - 1));
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}
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static void blade_copy_rect(struct tridentfb_par *par,
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u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
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{
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u32 s1, s2, d1, d2;
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int direction = 2;
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s1 = point(x1, y1);
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s2 = point(x1 + w - 1, y1 + h - 1);
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d1 = point(x2, y2);
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d2 = point(x2 + w - 1, y2 + h - 1);
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u32 s1 = point(x1, y1);
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u32 s2 = point(x1 + w - 1, y1 + h - 1);
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u32 d1 = point(x2, y2);
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u32 d2 = point(x2 + w - 1, y2 + h - 1);
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if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
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direction = 0;
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@ -267,38 +242,20 @@ static void blade_copy_rect(struct tridentfb_par *par,
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writemmr(par, ROP, ROP_S);
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writemmr(par, CMD, 0xE0000000 | 1 << 19 | 1 << 4 | 1 << 2 | direction);
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writemmr(par, SR1, direction ? s2 : s1);
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writemmr(par, SR2, direction ? s1 : s2);
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writemmr(par, DR1, direction ? d2 : d1);
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writemmr(par, DR2, direction ? d1 : d2);
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writemmr(par, SRC1, direction ? s2 : s1);
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writemmr(par, SRC2, direction ? s1 : s2);
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writemmr(par, DST1, direction ? d2 : d1);
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writemmr(par, DST2, direction ? d1 : d2);
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}
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/*
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* BladeXP specific acceleration functions
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*/
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#define ROP_P 0xF0
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#define masked_point(x, y) ((y & 0xffff)<<16|(x & 0xffff))
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static void xp_init_accel(struct tridentfb_par *par, int pitch, int bpp)
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{
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int tmp = 0, v1;
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unsigned char x = 0;
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switch (bpp) {
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case 8:
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x = 0;
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break;
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case 16:
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x = 1;
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break;
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case 24:
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x = 3;
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break;
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case 32:
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x = 2;
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break;
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}
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unsigned char x = bpp == 24 ? 3 : (bpp >> 4);
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int v1 = pitch << (bpp == 24 ? 20 : (18 + x));
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switch (pitch << (bpp >> 3)) {
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case 8192:
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@ -320,22 +277,6 @@ static void xp_init_accel(struct tridentfb_par *par, int pitch, int bpp)
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eng_oper = x | 0x40;
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switch (bpp) {
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case 8:
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tmp = 18;
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break;
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case 15:
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case 16:
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tmp = 19;
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break;
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case 24:
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case 32:
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tmp = 20;
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break;
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}
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v1 = pitch << tmp;
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writemmr(par, 0x2154, v1);
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writemmr(par, 0x2150, v1);
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t_outb(par, 3, 0x2126);
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@ -343,15 +284,11 @@ static void xp_init_accel(struct tridentfb_par *par, int pitch, int bpp)
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static void xp_wait_engine(struct tridentfb_par *par)
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{
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int busy;
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int count, timeout;
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count = 0;
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timeout = 0;
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for (;;) {
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busy = t_inb(par, STA) & 0x80;
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if (busy != 0x80)
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return;
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while (t_inb(par, STATUS) & 0x80) {
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count++;
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if (count == 10000000) {
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/* Timeout */
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@ -359,10 +296,11 @@ static void xp_wait_engine(struct tridentfb_par *par)
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timeout++;
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if (timeout == 8) {
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/* Reset engine */
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t_outb(par, 0x00, 0x2120);
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t_outb(par, 0x00, STATUS);
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return;
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}
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}
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cpu_relax();
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}
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}
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@ -371,10 +309,10 @@ static void xp_fill_rect(struct tridentfb_par *par,
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{
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writemmr(par, 0x2127, ROP_P);
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writemmr(par, 0x2158, c);
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writemmr(par, 0x2128, 0x4000);
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writemmr(par, 0x2140, masked_point(h, w));
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writemmr(par, 0x2138, masked_point(y, x));
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t_outb(par, 0x01, 0x2124);
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writemmr(par, DRAWFL, 0x4000);
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writemmr(par, OLDDIM, point(h, w));
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writemmr(par, OLDDST, point(y, x));
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t_outb(par, 0x01, OLDCMD);
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t_outb(par, eng_oper, 0x2125);
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}
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@ -404,12 +342,12 @@ static void xp_copy_rect(struct tridentfb_par *par,
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y2_tmp = y2;
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}
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writemmr(par, 0x2128, direction);
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writemmr(par, DRAWFL, direction);
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t_outb(par, ROP_S, 0x2127);
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writemmr(par, 0x213C, masked_point(y1_tmp, x1_tmp));
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writemmr(par, 0x2138, masked_point(y2_tmp, x2_tmp));
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writemmr(par, 0x2140, masked_point(h, w));
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t_outb(par, 0x01, 0x2124);
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writemmr(par, OLDSRC, point(y1_tmp, x1_tmp));
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writemmr(par, OLDDST, point(y2_tmp, x2_tmp));
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writemmr(par, OLDDIM, point(h, w));
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t_outb(par, 0x01, OLDCMD);
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}
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/*
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@ -417,22 +355,8 @@ static void xp_copy_rect(struct tridentfb_par *par,
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*/
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static void image_init_accel(struct tridentfb_par *par, int pitch, int bpp)
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{
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int tmp = 0;
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switch (bpp) {
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case 8:
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tmp = 0;
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break;
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case 15:
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tmp = 5;
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break;
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case 16:
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tmp = 1;
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break;
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case 24:
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case 32:
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tmp = 2;
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break;
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}
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int tmp = bpp == 24 ? 2: (bpp >> 4);
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writemmr(par, 0x2120, 0xF0000000);
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writemmr(par, 0x2120, 0x40000000 | tmp);
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writemmr(par, 0x2120, 0x80000000);
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@ -450,7 +374,8 @@ static void image_init_accel(struct tridentfb_par *par, int pitch, int bpp)
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static void image_wait_engine(struct tridentfb_par *par)
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{
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while (readmmr(par, 0x2164) & 0xF0000000) ;
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while (readmmr(par, 0x2164) & 0xF0000000)
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cpu_relax();
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}
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static void image_fill_rect(struct tridentfb_par *par,
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@ -461,8 +386,8 @@ static void image_fill_rect(struct tridentfb_par *par,
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writemmr(par, 0x2144, c);
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writemmr(par, DR1, point(x, y));
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writemmr(par, DR2, point(x + w - 1, y + h - 1));
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writemmr(par, DST1, point(x, y));
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writemmr(par, DST2, point(x + w - 1, y + h - 1));
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writemmr(par, 0x2124, 0x80000000 | 3 << 22 | 1 << 10 | 1 << 9);
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}
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@ -470,12 +395,11 @@ static void image_fill_rect(struct tridentfb_par *par,
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static void image_copy_rect(struct tridentfb_par *par,
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u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
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{
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u32 s1, s2, d1, d2;
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int direction = 2;
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s1 = point(x1, y1);
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s2 = point(x1 + w - 1, y1 + h - 1);
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d1 = point(x2, y2);
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d2 = point(x2 + w - 1, y2 + h - 1);
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u32 s1 = point(x1, y1);
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u32 s2 = point(x1 + w - 1, y1 + h - 1);
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u32 d1 = point(x2, y2);
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u32 d2 = point(x2 + w - 1, y2 + h - 1);
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if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
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direction = 0;
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@ -483,10 +407,10 @@ static void image_copy_rect(struct tridentfb_par *par,
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writemmr(par, 0x2120, 0x80000000);
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writemmr(par, 0x2120, 0x90000000 | ROP_S);
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writemmr(par, SR1, direction ? s2 : s1);
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writemmr(par, SR2, direction ? s1 : s2);
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writemmr(par, DR1, direction ? d2 : d1);
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writemmr(par, DR2, direction ? d1 : d2);
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writemmr(par, SRC1, direction ? s2 : s1);
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writemmr(par, SRC2, direction ? s1 : s2);
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writemmr(par, DST1, direction ? d2 : d1);
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writemmr(par, DST2, direction ? d1 : d2);
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writemmr(par, 0x2124,
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0x80000000 | 1 << 22 | 1 << 10 | 1 << 7 | direction);
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}
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@ -497,27 +421,12 @@ static void image_copy_rect(struct tridentfb_par *par,
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static void tgui_init_accel(struct tridentfb_par *par, int pitch, int bpp)
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{
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unsigned char x = 0;
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unsigned char x = bpp == 24 ? 3 : (bpp >> 4);
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/* disable clipping */
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writemmr(par, 0x2148, 0);
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writemmr(par, 0x214C, point(4095, 2047));
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switch (bpp) {
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case 8:
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x = 0;
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break;
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case 16:
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x = 1;
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break;
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case 24:
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x = 3;
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break;
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case 32:
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x = 2;
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break;
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}
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switch ((pitch * bpp) / 8) {
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case 8192:
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case 512:
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@ -541,11 +450,11 @@ static void tgui_fill_rect(struct tridentfb_par *par,
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u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
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{
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t_outb(par, ROP_P, 0x2127);
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writemmr(par, 0x212c, c);
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writemmr(par, 0x2128, 0x4020);
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writemmr(par, 0x2140, point(w - 1, h - 1));
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writemmr(par, 0x2138, point(x, y));
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t_outb(par, 1, 0x2124);
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writemmr(par, OLDCLR, c);
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writemmr(par, DRAWFL, 0x4020);
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writemmr(par, OLDDIM, point(w - 1, h - 1));
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writemmr(par, OLDDST, point(x, y));
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t_outb(par, 1, OLDCMD);
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}
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static void tgui_copy_rect(struct tridentfb_par *par,
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@ -572,12 +481,12 @@ static void tgui_copy_rect(struct tridentfb_par *par,
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y2_tmp = y2;
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}
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writemmr(par, 0x2128, 0x4 | flags);
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writemmr(par, DRAWFL, 0x4 | flags);
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t_outb(par, ROP_S, 0x2127);
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writemmr(par, 0x213C, point(x1_tmp, y1_tmp));
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writemmr(par, 0x2138, point(x2_tmp, y2_tmp));
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writemmr(par, 0x2140, point(w - 1, h - 1));
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t_outb(par, 1, 0x2124);
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writemmr(par, OLDSRC, point(x1_tmp, y1_tmp));
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writemmr(par, OLDDST, point(x2_tmp, y2_tmp));
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writemmr(par, OLDDIM, point(w - 1, h - 1));
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t_outb(par, 1, OLDCMD);
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}
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/*
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@ -588,37 +497,40 @@ static void tridentfb_fillrect(struct fb_info *info,
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const struct fb_fillrect *fr)
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{
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struct tridentfb_par *par = info->par;
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int bpp = info->var.bits_per_pixel;
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int col = 0;
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int col;
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switch (bpp) {
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default:
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case 8:
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col |= fr->color;
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if (info->var.bits_per_pixel == 8) {
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col = fr->color;
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col |= col << 8;
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col |= col << 16;
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break;
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case 16:
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} else
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col = ((u32 *)(info->pseudo_palette))[fr->color];
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break;
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case 32:
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col = ((u32 *)(info->pseudo_palette))[fr->color];
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break;
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}
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par->wait_engine(par);
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par->fill_rect(par, fr->dx, fr->dy, fr->width,
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fr->height, col, fr->rop);
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par->wait_engine(par);
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}
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static void tridentfb_copyarea(struct fb_info *info,
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const struct fb_copyarea *ca)
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{
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struct tridentfb_par *par = info->par;
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par->wait_engine(par);
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par->copy_rect(par, ca->sx, ca->sy, ca->dx, ca->dy,
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ca->width, ca->height);
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par->wait_engine(par);
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}
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static int tridentfb_sync(struct fb_info *info)
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{
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struct tridentfb_par *par = info->par;
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par->wait_engine(par);
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return 0;
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}
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#else
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#define tridentfb_fillrect cfb_fillrect
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#define tridentfb_copyarea cfb_copyarea
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#endif /* CONFIG_FB_TRIDENT_ACCEL */
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/*
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||||
|
|
@ -921,6 +833,8 @@ static int tridentfb_check_var(struct fb_var_screeninfo *var,
|
|||
/* check color depth */
|
||||
if (bpp == 24)
|
||||
bpp = var->bits_per_pixel = 32;
|
||||
if (bpp != 8 && bpp != 16 && bpp != 32)
|
||||
return -EINVAL;
|
||||
if (par->chip_id == TGUI9440 && bpp == 32)
|
||||
return -EINVAL;
|
||||
/* check whether resolution fits on panel and in memory */
|
||||
|
|
@ -928,8 +842,15 @@ static int tridentfb_check_var(struct fb_var_screeninfo *var,
|
|||
return -EINVAL;
|
||||
/* various resolution checks */
|
||||
var->xres = (var->xres + 7) & ~0x7;
|
||||
if (var->xres != var->xres_virtual)
|
||||
if (var->xres > var->xres_virtual)
|
||||
var->xres_virtual = var->xres;
|
||||
if (var->yres > var->yres_virtual)
|
||||
var->yres_virtual = var->yres;
|
||||
if (var->xres_virtual > 4095 || var->yres > 2048)
|
||||
return -EINVAL;
|
||||
/* prevent from position overflow for acceleration */
|
||||
if (var->yres_virtual > 0xffff)
|
||||
return -EINVAL;
|
||||
line_length = var->xres_virtual * bpp / 8;
|
||||
#ifdef CONFIG_FB_TRIDENT_ACCEL
|
||||
if (!is3Dchip(par->chip_id)) {
|
||||
|
|
@ -944,6 +865,8 @@ static int tridentfb_check_var(struct fb_var_screeninfo *var,
|
|||
var->xres_virtual = 4096 * 8 / bpp;
|
||||
else if (line_length <= 8192)
|
||||
var->xres_virtual = 8192 * 8 / bpp;
|
||||
else
|
||||
return -EINVAL;
|
||||
|
||||
line_length = var->xres_virtual * bpp / 8;
|
||||
}
|
||||
|
|
@ -1229,9 +1152,6 @@ static int tridentfb_set_par(struct fb_info *info)
|
|||
case 8:
|
||||
tmp = 0;
|
||||
break;
|
||||
case 15:
|
||||
tmp = 0x10;
|
||||
break;
|
||||
case 16:
|
||||
tmp = 0x30;
|
||||
break;
|
||||
|
|
@ -1352,10 +1272,11 @@ static struct fb_ops tridentfb_ops = {
|
|||
.fb_blank = tridentfb_blank,
|
||||
.fb_check_var = tridentfb_check_var,
|
||||
.fb_set_par = tridentfb_set_par,
|
||||
#ifdef CONFIG_FB_TRIDENT_ACCEL
|
||||
.fb_fillrect = tridentfb_fillrect,
|
||||
.fb_copyarea = tridentfb_copyarea,
|
||||
.fb_imageblit = cfb_imageblit,
|
||||
#ifdef CONFIG_FB_TRIDENT_ACCEL
|
||||
.fb_sync = tridentfb_sync,
|
||||
#endif
|
||||
};
|
||||
|
||||
|
|
@ -1366,7 +1287,6 @@ static int __devinit trident_pci_probe(struct pci_dev *dev,
|
|||
unsigned char revision;
|
||||
struct fb_info *info;
|
||||
struct tridentfb_par *default_par;
|
||||
int defaultaccel;
|
||||
int chip3D;
|
||||
int chip_id;
|
||||
|
||||
|
|
@ -1448,9 +1368,6 @@ static int __devinit trident_pci_probe(struct pci_dev *dev,
|
|||
|
||||
default_par->chip_id = chip_id;
|
||||
|
||||
/* acceleration is on by default for 3D chips */
|
||||
defaultaccel = chip3D && !noaccel;
|
||||
|
||||
/* setup MMIO region */
|
||||
tridentfb_fix.mmio_start = pci_resource_start(dev, 1);
|
||||
tridentfb_fix.mmio_len = chip3D ? 0x20000 : 0x10000;
|
||||
|
|
@ -1515,7 +1432,7 @@ static int __devinit trident_pci_probe(struct pci_dev *dev,
|
|||
if (err < 0)
|
||||
goto out_unmap2;
|
||||
|
||||
if (defaultaccel && default_par->init_accel)
|
||||
if (!noaccel && default_par->init_accel)
|
||||
info->var.accel_flags |= FB_ACCELF_TEXT;
|
||||
else
|
||||
info->var.accel_flags &= ~FB_ACCELF_TEXT;
|
||||
|
|
|
|||
|
|
@ -4,7 +4,7 @@
|
|||
#endif
|
||||
|
||||
#if TRIDENTFB_DEBUG
|
||||
#define debug(f,a...) printk("%s:" f, __FUNCTION__ , ## a);mdelay(1000);
|
||||
#define debug(f,a...) printk("%s:" f, __FUNCTION__ , ## a);mdelay(100);
|
||||
#else
|
||||
#define debug(f,a...)
|
||||
#endif
|
||||
|
|
@ -124,3 +124,22 @@
|
|||
#define BiosMode 0x5c
|
||||
#define BiosReg 0x5d
|
||||
|
||||
/* Graphics Engine */
|
||||
#define STATUS 0x2120
|
||||
#define OLDCMD 0x2124
|
||||
#define DRAWFL 0x2128
|
||||
#define OLDCLR 0x212C
|
||||
#define OLDDST 0x2138
|
||||
#define OLDSRC 0x213C
|
||||
#define OLDDIM 0x2140
|
||||
#define CMD 0x2144
|
||||
#define ROP 0x2148
|
||||
#define COLOR 0x2160
|
||||
#define SRC1 0x2100
|
||||
#define SRC2 0x2104
|
||||
#define DST1 0x2108
|
||||
#define DST2 0x210C
|
||||
|
||||
#define ROP_S 0xCC
|
||||
#define ROP_P 0xF0
|
||||
#define ROP_X 0x66
|
||||
|
|
|
|||
Reference in New Issue