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authorEric Anholt <eric@anholt.net>2008-07-14 13:43:31 -0700
committerZhenyu Wang <zhenyu.z.wang@intel.com>2008-07-21 11:13:30 +0800
commit4709bf48bdc61666fcdf0e13e863f1f5f9131882 (patch)
tree7e8117d55818e4b85a202abef9a8be3546b51f8a
parent0a7b753d70e1fd494430c496e19fb672258b5ac6 (diff)
Fix DSPARB setting on 845/865, which have only the AEND field and 96 entries.
(cherry picked from commit 5054a86b1b362f3f63310afb9ef2d37c9f1cfca5)
-rw-r--r--src/i830_driver.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/src/i830_driver.c b/src/i830_driver.c
index 0a49d3a2..c880833e 100644
--- a/src/i830_driver.c
+++ b/src/i830_driver.c
@@ -1994,7 +1994,16 @@ i830_set_dsparb(ScrnInfoPtr pScrn)
OUTREG(DSPARB, (95 << DSPARB_CSTART_SHIFT) |
(48 << DSPARB_BSTART_SHIFT));
} else {
- OUTREG(DSPARB, 254 << DSPARB_BEND_SHIFT | 128 << DSPARB_AEND_SHIFT);
+ if (IS_MOBILE(pI830)) {
+ /* The 830 has 288 entries, and the 855 has 256. */
+ OUTREG(DSPARB, 254 << DSPARB_BEND_SHIFT | 128 << DSPARB_AEND_SHIFT);
+ } else {
+ /* 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.
+ */
+ OUTREG(DSPARB, 95 << DSPARB_AEND_SHIFT);
+ }
}
}