Attachment 21733 Details for Bug 18651 – update 945 fifo entry count

[patch] update 945 fifo entry count

i830-945-dsparb-has-127.patch (text/plain), 1.75 KB, created by Jesse Barnes on 2009-01-06 13:29:32 UTC

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Creator: Jesse Barnes

Created: 2009-01-06 13:29:32 UTC

Size: 1.75 KB

patch

obsolete

>diff --git a/src/i830_display.c b/src/i830_display.c
>index 50fbc4d..1d1ad18 100644
>--- a/src/i830_display.c
>+++ b/src/i830_display.c
>@@ -1123,7 +1123,8 @@ i830_update_dsparb(ScrnInfoPtr pScrn)
>    xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
>    I830Ptr pI830 = I830PTR(pScrn);
>    int total_hdisplay = 0, planea_hdisplay = 0, planeb_hdisplay = 0;
>-   int fifo_entries = 0, planea_entries = 0, planeb_entries = 0, i;
>+   int fifo_entries = 0, planea_entries = 0, planeb_entries = 0,
>+       planec_entries = 0, i;
> 
>    if ((INREG(DSPACNTR) & DISPLAY_PLANE_ENABLE) &&
>        (INREG(DSPBCNTR) & DISPLAY_PLANE_ENABLE))
>@@ -1133,18 +1134,22 @@ i830_update_dsparb(ScrnInfoPtr pScrn)
>   /*
>     * FIFO entries will be split based on programmed modes
>     */
>-   if (IS_I965GM(pI830))
>+   if (IS_I965GM(pI830) || IS_I945GM(pI830)) {
>        fifo_entries = 127;
>-   else if (IS_I9XX(pI830))
>+       planec_entries = 40;
>+   } else if (IS_I9XX(pI830)) {
>        fifo_entries = 95;
>-   else if (IS_MOBILE(pI830)) {
>+       planec_entries = 30;
>+   } else if (IS_MOBILE(pI830)) {
>        fifo_entries = 255;
>+       planec_entries = 96;
>    } else {
>-	/* The 845/865 only have a AEND field.  Though the field size would
>+       /* The 845/865 only have a AEND field.  Though the field size would
> 	* allow 128 entries, the 865 rendered the cursor wrong then.
> 	* The BIOS set it up for 96.
> 	*/
>-	fifo_entries = 95;
>+       fifo_entries = 95;
>+       planec_entries = 30;
>    }
> 
>    for (i = 0; i < xf86_config->num_crtc; i++) {
>@@ -1159,6 +1164,7 @@ i830_update_dsparb(ScrnInfoPtr pScrn)
>       }
>    }
> 
>+   fifo_entries -= planec_entries;
>    planea_entries = fifo_entries * planea_hdisplay / total_hdisplay;
>    planeb_entries = fifo_entries * planeb_hdisplay / total_hdisplay;
>

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