# --- T2-COPYRIGHT-BEGIN ---
# t2/package/*/xf86-video-mga/hotfix-bigendian.patch
# Copyright (C) 2025 The T2 SDE Project
# SPDX-License-Identifier: GPL-2.0 or patched project license
# --- T2-COPYRIGHT-END ---

Big-endian byte-swap DMA transfers, too and don't clobber opmode in exa.

Signed-off-by: René Rebe <rene@exactco.de>

--- xf86-video-mga-2.1.0/src/mga_exa.c.vanilla	2025-11-30 14:42:38.923164305 +0100
+++ xf86-video-mga-2.1.0/src/mga_exa.c	2025-11-30 14:59:23.789477025 +0100
@@ -714,7 +714,7 @@
 
     mgaSetup(pMga, pDst, NULL, 10);
 
-    OUTREG(MGAREG_OPMODE, MGAOPM_DMA_BLIT);
+    /*OUTREG(MGAREG_OPMODE, MGAOPM_DMA_BLIT);*/ /* don't clobber big-endian swap -ReneR */
     OUTREG(MGAREG_DSTORG, exaGetPixmapOffset(pDst));
     OUTREG(MGAREG_PITCH, mgaGetPixmapPitch(pDst));
     OUTREG(MGAREG_PLNWT, 0xffffffff);
--- xf86-video-mga-2.1.0/src/mga_storm.c.vanilla	2025-11-30 15:05:25.110378492 +0100
+++ xf86-video-mga-2.1.0/src/mga_storm.c	2025-11-30 15:07:58.121778907 +0100
@@ -309,8 +309,9 @@
     }
 
     opmode |= opmode_table[ pLayout->bitsPerPixel / 8 ];
+    opmode |= opmode >> 8; /* replicate for dma swapping, too */
 #if X_BYTE_ORDER == X_LITTLE_ENDIAN
-    opmode &= ~0x30000;
+    opmode &= ~0x30300;
 #endif
 
     pMga->fifoCount = 0;