ref: 5c1feb0ef0b795e5de71e956f9ccddcd5c4b7f21
dir: /sys/src/9/pc/vganvidia.c/
/* Portions of this file derived from work with the following copyright */
/***************************************************************************\
|* *|
|* Copyright 2003 NVIDIA, Corporation. All rights reserved. *|
|* *|
|* NOTICE TO USER: The source code is copyrighted under U.S. and *|
|* international laws. Users and possessors of this source code are *|
|* hereby granted a nonexclusive, royalty-free copyright license to *|
|* use this code in individual and commercial software. *|
|* *|
|* Any use of this source code must include, in the user documenta- *|
|* tion and internal comments to the code, notices to the end user *|
|* as follows: *|
|* *|
|* Copyright 2003 NVIDIA, Corporation. All rights reserved. *|
|* *|
|* NVIDIA, CORPORATION MAKES NO REPRESENTATION ABOUT THE SUITABILITY *|
|* OF THIS SOURCE CODE FOR ANY PURPOSE. IT IS PROVIDED "AS IS" *|
|* WITHOUT EXPRESS OR IMPLIED WARRANTY OF ANY KIND. NVIDIA, CORPOR- *|
|* ATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOURCE CODE, *|
|* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGE- *|
|* MENT, AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL *|
|* NVIDIA, CORPORATION BE LIABLE FOR ANY SPECIAL, INDIRECT, INCI- *|
|* DENTAL, OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RE- *|
|* SULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION *|
|* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF *|
|* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOURCE CODE. *|
|* *|
|* U.S. Government End Users. This source code is a "commercial *|
|* item," as that term is defined at 48 C.F.R. 2.101 (OCT 1995), *|
|* consisting of "commercial computer software" and "commercial *|
|* computer software documentation," as such terms are used in *|
|* 48 C.F.R. 12.212 (SEPT 1995) and is provided to the U.S. Govern- *|
|* ment only as a commercial end item. Consistent with 48 C.F.R. *|
|* 12.212 and 48 C.F.R. 227.7202-1 through 227.7202-4 (JUNE 1995), *|
|* all U.S. Government End Users acquire the source code with only *|
|* those rights set forth herein. *|
|* *|
\***************************************************************************/
#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "io.h"
#include "../port/error.h"
#define Image IMAGE
#include <draw.h>
#include <memdraw.h>
#include <cursor.h>
#include "screen.h"
#include "nv_dma.h"
enum {
Pramin = 0x00710000,
Pramdac = 0x00680000,
Fifo = 0x00800000,
Pgraph = 0x00400000,
Pfb = 0x00100000
};
enum {
hwCurPos = Pramdac + 0x0300,
};
#define SKIPS 8
static struct {
ulong *dmabase;
int dmacurrent;
int dmaput;
int dmafree;
int dmamax;
} nv;
static void
nvidiaenable(VGAscr* scr)
{
Pcidev *p;
ulong *q;
int tmp;
if(scr->mmio)
return;
p = scr->pci;
if(p == nil)
return;
scr->id = p->did;
scr->mmio = vmap(p->mem[0].bar & ~0x0F, p->mem[0].size);
if(scr->mmio == nil)
return;
addvgaseg("nvidiammio", p->mem[0].bar&~0x0F, p->mem[0].size);
vgalinearpci(scr);
if(scr->apsize)
addvgaseg("nvidiascreen", scr->paddr, scr->apsize);
/* find video memory size */
switch (scr->id & 0x0ff0) {
case 0x0020:
case 0x00A0:
q = (void*)((uchar*)scr->mmio + Pfb);
tmp = *q;
if (tmp & 0x0100) {
scr->storage = ((tmp >> 12) & 0x0F) * 1024 + 1024 * 2;
} else {
tmp &= 0x03;
if (tmp)
scr->storage = (1024*1024*2) << tmp;
else
scr->storage = 1024*1024*32;
}
break;
case 0x01A0:
p = pcimatchtbdf(MKBUS(BusPCI, 0, 0, 1));
tmp = pcicfgr32(p, 0x7C);
scr->storage = (((tmp >> 6) & 31) + 1) * 1024 * 1024;
break;
case 0x01F0:
p = pcimatchtbdf(MKBUS(BusPCI, 0, 0, 1));
tmp = pcicfgr32(p, 0x84);
scr->storage = (((tmp >> 4) & 127) + 1) * 1024 * 1024;
break;
default:
q = (void*)((uchar*)scr->mmio + Pfb + 0x020C);
tmp = (*q >> 20) & 0xFFF;
if (tmp == 0)
tmp = 16;
scr->storage = tmp*1024*1024;
break;
}
}
static void
nvidialinear(VGAscr *, int, int)
{
}
static void
nvidiacurdisable(VGAscr* scr)
{
if(scr->mmio == 0)
return;
vgaxo(Crtx, 0x31, vgaxi(Crtx, 0x31) & ~0x01);
}
static void
nvidiacurload(VGAscr* scr, Cursor* curs)
{
ulong* p;
int i,j;
ushort c,s;
ulong tmp;
if(scr->mmio == 0)
return;
vgaxo(Crtx, 0x31, vgaxi(Crtx, 0x31) & ~0x01);
switch (scr->id & 0x0ff0) {
case 0x0020:
case 0x00A0:
p = (void*)((uchar*)scr->mmio + Pramin + 0x1E00 * 4);
break;
default:
/*
* Reset the cursor location, since the kernel may
* have allocated less storage than aux/vga
* expected.
*/
tmp = scr->apsize - 96*1024;
p = (void*)((uchar*)scr->vaddr + tmp);
vgaxo(Crtx, 0x30, 0x80|(tmp>>17));
vgaxo(Crtx, 0x31, (tmp>>11)<<2);
vgaxo(Crtx, 0x2F, tmp>>24);
break;
}
for(i=0; i<16; i++) {
c = (curs->clr[2 * i] << 8) | curs->clr[2 * i+1];
s = (curs->set[2 * i] << 8) | curs->set[2 * i+1];
tmp = 0;
for (j=0; j<16; j++){
if(s&0x8000)
tmp |= 0x80000000;
else if(c&0x8000)
tmp |= 0xFFFF0000;
if (j&0x1){
*p++ = tmp;
tmp = 0;
} else {
tmp>>=16;
}
c<<=1;
s<<=1;
}
for (j=0; j<8; j++)
*p++ = 0;
}
for (i=0; i<256; i++)
*p++ = 0;
scr->offset = curs->offset;
vgaxo(Crtx, 0x31, vgaxi(Crtx, 0x31) | 0x01);
}
static int
nvidiacurmove(VGAscr* scr, Point p)
{
ulong* cursorpos;
if(scr->mmio == 0)
return 1;
cursorpos = (void*)((uchar*)scr->mmio + hwCurPos);
*cursorpos = ((p.y+scr->offset.y)<<16)|((p.x+scr->offset.x) & 0xFFFF);
return 0;
}
static void
nvidiacurenable(VGAscr* scr)
{
nvidiaenable(scr);
if(scr->mmio == 0)
return;
vgaxo(Crtx, 0x1F, 0x57);
nvidiacurload(scr, &arrow);
nvidiacurmove(scr, ZP);
vgaxo(Crtx, 0x31, vgaxi(Crtx, 0x31) | 0x01);
}
void
writeput(VGAscr *scr, int data)
{
uchar *p, scratch;
ulong *fifo;
outb(0x3D0,0);
p = scr->vaddr;
scratch = *p;
fifo = (void*)((uchar*)scr->mmio + Fifo);
fifo[0x10] = (data << 2);
USED(scratch);
}
ulong
readget(VGAscr *scr)
{
ulong *fifo;
fifo = (void*)((uchar*)scr->mmio + Fifo);
return (fifo[0x0011] >> 2);
}
void
nvdmakickoff(VGAscr *scr)
{
if(nv.dmacurrent != nv.dmaput) {
nv.dmaput = nv.dmacurrent;
writeput(scr, nv.dmaput);
}
}
static void
nvdmanext(ulong data)
{
nv.dmabase[nv.dmacurrent++] = data;
}
void
nvdmawait(VGAscr *scr, int size)
{
int dmaget;
size++;
while(nv.dmafree < size) {
dmaget = readget(scr);
if(nv.dmaput >= dmaget) {
nv.dmafree = nv.dmamax - nv.dmacurrent;
if(nv.dmafree < size) {
nvdmanext(0x20000000);
if(dmaget <= SKIPS) {
if (nv.dmaput <= SKIPS) /* corner case - will be idle */
writeput(scr, SKIPS + 1);
do { dmaget = readget(scr); }
while(dmaget <= SKIPS);
}
writeput(scr, SKIPS);
nv.dmacurrent = nv.dmaput = SKIPS;
nv.dmafree = dmaget - (SKIPS + 1);
}
} else
nv.dmafree = dmaget - nv.dmacurrent - 1;
}
}
static void
nvdmastart(VGAscr *scr, ulong tag, int size)
{
if (nv.dmafree <= size)
nvdmawait(scr, size);
nvdmanext((size << 18) | tag);
nv.dmafree -= (size + 1);
}
static void
waitforidle(VGAscr *scr)
{
ulong* pgraph;
int x;
pgraph = (void*)((uchar*)scr->mmio + Pgraph);
x = 0;
while((readget(scr) != nv.dmaput) && x++ < 1000000)
;
if(x >= 1000000)
iprint("idle stat %lud put %d scr %#p pc %#p\n", readget(scr), nv.dmaput, scr, getcallerpc(&scr));
x = 0;
while(pgraph[0x00000700/4] & 0x01 && x++ < 1000000)
;
if(x >= 1000000)
iprint("idle stat %lud scrio %#p scr %#p pc %#p\n", *pgraph, scr->mmio, scr, getcallerpc(&scr));
}
static int
nvresetgraphics(VGAscr *scr)
{
ulong surfaceFormat, patternFormat, rectFormat, lineFormat;
int pitch, i;
if(scr->paddr == 0)
return -1;
pitch = scr->gscreen->width*sizeof(ulong);
/*
* DMA is at the end of the virtual window,
* but we might have cut it short when mapping it.
*/
if(nv.dmabase == nil){
if(scr->storage <= scr->apsize)
nv.dmabase = (ulong*)((uchar*)scr->vaddr + scr->storage - 128*1024);
else{
nv.dmabase = (void*)vmap(scr->paddr + scr->storage - 128*1024, 128*1024);
if(nv.dmabase == 0){
print("vmap nvidia dma failed\n");
return -1;
}
}
}
for(i=0; i<SKIPS; i++)
nv.dmabase[i] = 0x00000000;
nv.dmabase[0x0 + SKIPS] = 0x00040000;
nv.dmabase[0x1 + SKIPS] = 0x80000010;
nv.dmabase[0x2 + SKIPS] = 0x00042000;
nv.dmabase[0x3 + SKIPS] = 0x80000011;
nv.dmabase[0x4 + SKIPS] = 0x00044000;
nv.dmabase[0x5 + SKIPS] = 0x80000012;
nv.dmabase[0x6 + SKIPS] = 0x00046000;
nv.dmabase[0x7 + SKIPS] = 0x80000013;
nv.dmabase[0x8 + SKIPS] = 0x00048000;
nv.dmabase[0x9 + SKIPS] = 0x80000014;
nv.dmabase[0xA + SKIPS] = 0x0004A000;
nv.dmabase[0xB + SKIPS] = 0x80000015;
nv.dmabase[0xC + SKIPS] = 0x0004C000;
nv.dmabase[0xD + SKIPS] = 0x80000016;
nv.dmabase[0xE + SKIPS] = 0x0004E000;
nv.dmabase[0xF + SKIPS] = 0x80000017;
nv.dmaput = 0;
nv.dmacurrent = 16 + SKIPS;
nv.dmamax = 8191;
nv.dmafree = nv.dmamax - nv.dmacurrent;
switch(scr->gscreen->depth) {
case 32:
case 24:
surfaceFormat = SURFACE_FORMAT_DEPTH24;
patternFormat = PATTERN_FORMAT_DEPTH24;
rectFormat = RECT_FORMAT_DEPTH24;
lineFormat = LINE_FORMAT_DEPTH24;
break;
case 16:
case 15:
surfaceFormat = SURFACE_FORMAT_DEPTH16;
patternFormat = PATTERN_FORMAT_DEPTH16;
rectFormat = RECT_FORMAT_DEPTH16;
lineFormat = LINE_FORMAT_DEPTH16;
break;
default:
surfaceFormat = SURFACE_FORMAT_DEPTH8;
patternFormat = PATTERN_FORMAT_DEPTH8;
rectFormat = RECT_FORMAT_DEPTH8;
lineFormat = LINE_FORMAT_DEPTH8;
break;
}
nvdmastart(scr, SURFACE_FORMAT, 4);
nvdmanext(surfaceFormat);
nvdmanext(pitch | (pitch << 16));
nvdmanext(0);
nvdmanext(0);
nvdmastart(scr, PATTERN_FORMAT, 1);
nvdmanext(patternFormat);
nvdmastart(scr, RECT_FORMAT, 1);
nvdmanext(rectFormat);
nvdmastart(scr, LINE_FORMAT, 1);
nvdmanext(lineFormat);
nvdmastart(scr, PATTERN_COLOR_0, 4);
nvdmanext(~0);
nvdmanext(~0);
nvdmanext(~0);
nvdmanext(~0);
nvdmastart(scr, ROP_SET, 1);
nvdmanext(0xCC);
nvdmakickoff(scr);
waitforidle(scr);
return 0;
}
static int
nvidiahwfill(VGAscr *scr, Rectangle r, ulong sval)
{
nvdmastart(scr, RECT_SOLID_COLOR, 1);
nvdmanext(sval);
nvdmastart(scr, RECT_SOLID_RECTS(0), 2);
nvdmanext((r.min.x << 16) | r.min.y);
nvdmanext((Dx(r) << 16) | Dy(r));
//if ( (Dy(r) * Dx(r)) >= 512)
nvdmakickoff(scr);
waitforidle(scr);
return 1;
}
static int
nvidiahwscroll(VGAscr *scr, Rectangle r, Rectangle sr)
{
nvdmastart(scr, BLIT_POINT_SRC, 3);
nvdmanext((sr.min.y << 16) | sr.min.x);
nvdmanext((r.min.y << 16) | r.min.x);
nvdmanext((Dy(r) << 16) | Dx(r));
//if ( (Dy(r) * Dx(r)) >= 512)
nvdmakickoff(scr);
waitforidle(scr);
return 1;
}
void
nvidiablank(VGAscr*, int blank)
{
uchar seq1, crtc1A;
seq1 = vgaxi(Seqx, 1) & ~0x20;
crtc1A = vgaxi(Crtx, 0x1A) & ~0xC0;
if(blank){
seq1 |= 0x20;
// crtc1A |= 0xC0;
crtc1A |= 0x80;
}
vgaxo(Seqx, 1, seq1);
vgaxo(Crtx, 0x1A, crtc1A);
}
static void
nvidiadrawinit(VGAscr *scr)
{
scr->blank = nvidiablank;
if(nvresetgraphics(scr) < 0)
return;
scr->fill = nvidiahwfill;
scr->scroll = nvidiahwscroll;
}
VGAdev vganvidiadev = {
"nvidia",
nvidiaenable,
nil,
nil,
nvidialinear,
nvidiadrawinit,
};
VGAcur vganvidiacur = {
"nvidiahwgc",
nvidiacurenable,
nvidiacurdisable,
nvidiacurload,
nvidiacurmove,
};