Attachment 70843 Details for Bug 139361

[patch] Patch for SLES9

p_rn50-pixelclock-limit.diff (text/plain), 1.61 KB, created by Stefan Dirsch on 2006-03-01 17:59:31 UTC

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Creator: Stefan Dirsch

Created: 2006-03-01 17:59:31 UTC

Size: 1.61 KB

patch

obsolete

>--- ati/radeon_driver.c.orig	2006-03-01 18:41:02.000000000 +0100
>+++ ati/radeon_driver.c	2006-03-01 18:56:01.000000000 +0100
>@@ -1829,6 +1829,15 @@
> 	pll->xclk           = RADEON_BIOS16(pll_info_block + 0x08);
>     }
> 
>+    if (info->ChipFamily == CHIP_FAMILY_RV100 && !info->HasCRTC2) {
>+        /* Avoid RN50 corruption due to memory bandwidth starvation.
>+         * 18 is an empirical value based on the databook and Windows driver.
>+        */
>+        pll->max_pll_freq = min(pll->max_pll_freq,
>+                               18 * info->mclk * 100 / pScrn->bitsPerPixel *
>+                               info->RamWidth / 16);
>+    }
>+
>     /* (Some?) Radeon BIOSes seem too lie about their minimum dot
>      * clocks.  Allow users to override the detected minimum dot clock
>      * value (e.g., and allow it to be suitable for TV sets).
>@@ -1969,6 +1978,10 @@
> 	       (info->ChipFamily == CHIP_FAMILY_RS200)){
> 	if (tmp & RV100_HALF_MODE) info->RamWidth = 32;
> 	else info->RamWidth = 64;
>+       if (!info->HasCRTC2) {
>+           info->RamWidth /= 4;
>+           info->IsDDR = TRUE;
>+       }
>     } else {
> 	if (tmp & RADEON_MEM_NUM_CHANNELS_MASK) info->RamWidth = 128;
> 	else info->RamWidth = 64;
>@@ -2035,10 +2048,11 @@
> 	info->ChipFamily = CHIP_FAMILY_RV100;
> 	break;
> 
>-    case PCI_CHIP_RV100_QY:
>-    case PCI_CHIP_RV100_QZ:
>     case PCI_CHIP_RN50_515E:  /* RN50 is based on the RV100 but 3D isn't guaranteed to work.  YMMV. */
>     case PCI_CHIP_RN50_5969:
>+        info->HasCRTC2 = FALSE;
>+    case PCI_CHIP_RV100_QY:
>+    case PCI_CHIP_RV100_QZ:
> 	info->ChipFamily = CHIP_FAMILY_RV100;
> 
> 	/* DELL triple-head configuration. */

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Attachments on bug 139361: 60983 | 60985 | 70843 | 71565 | 71566 | 71567 | 87821