Attachment 18003 Details for Bug 16833 – only update fifo watermark

[patch] only update fifo watermark

i830-fifo-wm-only.patch (text/plain), 1.09 KB, created by Jesse Barnes on 2008-07-30 08:18:10 UTC

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Creator: Jesse Barnes

Created: 2008-07-30 08:18:10 UTC

Size: 1.09 KB

patch

obsolete

>diff --git a/src/i830_display.c b/src/i830_display.c
>index 6176447..ebc03b4 100644
>--- a/src/i830_display.c
>+++ b/src/i830_display.c
>@@ -1103,10 +1103,10 @@ i830_update_dsparb(ScrnInfoPtr pScrn)
> {
>    xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
>    I830Ptr pI830 = I830PTR(pScrn);
>-   uint32_t dspacntr, dspbcntr;
>+   uint32_t dspacntr, dspbcntr, fw1, fw2;
>    int total_hdisplay = 0, planea_hdisplay = 0, planeb_hdisplay = 0;
>    int fifo_entries = 0, planea_entries = 0, planeb_entries = 0, i;
>-
>+#if 0
>    dspacntr = INREG(DSPACNTR);
>    dspbcntr = INREG(DSPBCNTR);
> 
>@@ -1159,10 +1159,17 @@ i830_update_dsparb(ScrnInfoPtr pScrn)
> 	      (planea_entries << DSPARB_AEND_SHIFT));
>    else
>        OUTREG(DSPARB, planea_entries << DSPARB_AEND_SHIFT);
>-
>+#endif
>+   /* Magic FIFO watermark values for 965+ hw */
>+   fw1 = INREG(DSPFW1) & 0xff800000;
>+   fw2 = INREG(DSPFW2) & 0xffffc000;
>+   OUTREG(DSPFW1, fw1 | ((8 << 16) | (8 << 8) | 8));
>+   OUTREG(DSPFW2, fw2 | ((8 << 8) | 8));
>+#if 0
>    OUTREG(DSPACNTR, dspacntr);
>    OUTREG(DSPBCNTR, dspbcntr);
>    i830WaitForVblank(pScrn);
>+#endif
> }
> 
> /**

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Attachments on bug 16833: 17851 | 17852 | 17931 | 17955 | 18003 | 18004

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