diff options
| author | Keith Packard <keithp@dulcimer.keithp.com> | 2007-06-30 12:45:24 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@dulcimer.keithp.com> | 2007-06-30 12:45:24 -0700 |
| commit | 1e2e301348b4168aeed38b3fdc6b0e43d5678a86 (patch) | |
| tree | 018eab1524887b06193a5e5c55f4f8ea84e2c1c9 /src/i830_display.c | |
| parent | 11862c2e1f23b77b56d7bd8b384579b5e3ae377b (diff) | |
Fix load detection to use border region instead of blanking.
Make sure there is some border area to use by changing how the pipe is
configured, then pick a scanline in the middle of the border for load
detection. This lets the load detect code use an active pipe instead of
requiring an idle one.
Diffstat (limited to 'src/i830_display.c')
| -rw-r--r-- | src/i830_display.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/src/i830_display.c b/src/i830_display.c index 16ef2cc8..aba86ae7 100644 --- a/src/i830_display.c +++ b/src/i830_display.c @@ -1054,6 +1054,14 @@ i830_crtc_mode_set(xf86CrtcPtr crtc, DisplayModePtr mode, ((adjusted_mode->CrtcHSyncEnd - 1) << 16)); OUTREG(vtot_reg, (adjusted_mode->CrtcVDisplay - 1) | ((adjusted_mode->CrtcVTotal - 1) << 16)); + + /* + * Give us some border at the bottom for load detection + */ + adjusted_mode->CrtcVBlankStart = adjusted_mode->CrtcVSyncStart; + if (adjusted_mode->CrtcVBlankEnd - adjusted_mode->CrtcVBlankStart < 3) + adjusted_mode->CrtcVBlankStart = adjusted_mode->CrtcVBlankEnd - 3; + OUTREG(vblank_reg, (adjusted_mode->CrtcVBlankStart - 1) | ((adjusted_mode->CrtcVBlankEnd - 1) << 16)); OUTREG(vsync_reg, (adjusted_mode->CrtcVSyncStart - 1) | @@ -1322,7 +1330,7 @@ i830GetLoadDetectPipe(xf86OutputPtr output) return output->crtc; for (i = 0; i < xf86_config->num_crtc; i++) - if (!xf86CrtcInUse (xf86_config->crtc[i])) + if (output->possible_crtcs & (1 << i)) break; if (i == xf86_config->num_crtc) @@ -1344,9 +1352,10 @@ i830ReleaseLoadDetectPipe(xf86OutputPtr output) if (intel_output->load_detect_temp) { - output->crtc->enabled = FALSE; + xf86CrtcPtr crtc = output->crtc; output->crtc = NULL; intel_output->load_detect_temp = FALSE; + crtc->enabled = xf86CrtcInUse (crtc); xf86DisableUnusedFunctions(pScrn); } } |