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G80: Reduce load detection false positives.

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This commit is contained in:
Aaron Plattner
2007-11-13 17:18:10 -08:00
parent 4da88cb3dd
commit d483ecd851
1 changed files with 5 additions and 1 deletions
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6
src/g80_dac.c
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@@ -29,6 +29,7 @@
#define DPMS_SERVER
#include <X11/extensions/dpms.h>
#include <xf86_OSproc.h>
#include "g80_type.h"
#include "g80_display.h"
@@ -134,6 +135,7 @@ G80DacLoadDetect(xf86OutputPtr output)
G80OutputPrivPtr pPriv = output->driver_private;
const int scrnIndex = pScrn->scrnIndex;
const int dacOff = 2048 * pPriv->or;
int sigstate;
CARD32 load, tmp, tmp2;
xf86DrvMsg(scrnIndex, X_PROBED, "Trying load detection on VGA%i ... ",
@@ -145,7 +147,9 @@ G80DacLoadDetect(xf86OutputPtr output)
while(pNv->reg[(0x0061A004+dacOff)/4] & 0x80000000);
tmp = pNv->architecture == 0x50 ? 420 : 340;
pNv->reg[(0x0061A00C+dacOff)/4] = tmp | 0x100000;
usleep(4500);
sigstate = xf86BlockSIGIO();
usleep(45000);
xf86UnblockSIGIO(sigstate);
load = pNv->reg[(0x0061A00C+dacOff)/4];
pNv->reg[(0x0061A00C+dacOff)/4] = 0;
pNv->reg[(0x0061A004+dacOff)/4] = 0x80000000 | tmp2;