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authorDennis Munsie <dmunsie@cecropia.com>2006-05-27 18:17:52 +1000
committerDave Airlie <airlied@linux.ie>2006-05-27 18:17:52 +1000
commitdf7df8ab7b38ca80bbaf5ffafd401d6c739fd45f (patch)
tree83f7f6768ac730231386fdbf70f30c165d3cb134 /drivers/video
parent51d797474f87b375819d084f7583a2864c5656c4 (diff)
intelfb -- uses stride alignment of 64 on the 9xx chipsets.
Signed-off-by: Dennis Munsie <dmunsie@cecropia.com> Signed-off-by: Dave Airlie <airlied@linux.ie>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/intelfb/intelfb.h1
-rw-r--r--drivers/video/intelfb/intelfbdrv.c5
-rw-r--r--drivers/video/intelfb/intelfbhw.c7
3 files changed, 10 insertions, 3 deletions
diff --git a/drivers/video/intelfb/intelfb.h b/drivers/video/intelfb/intelfb.h
index 631a3a95de40..469b06c29180 100644
--- a/drivers/video/intelfb/intelfb.h
+++ b/drivers/video/intelfb/intelfb.h
@@ -59,6 +59,7 @@
#define INTEL_REG_SIZE 0x80000
#define STRIDE_ALIGNMENT 16
+#define STRIDE_ALIGNMENT_I9XX 64
#define PALETTE_8_ENTRIES 256
diff --git a/drivers/video/intelfb/intelfbdrv.c b/drivers/video/intelfb/intelfbdrv.c
index 2aba6a4a9eae..b92bc908335e 100644
--- a/drivers/video/intelfb/intelfbdrv.c
+++ b/drivers/video/intelfb/intelfbdrv.c
@@ -1141,7 +1141,10 @@ update_dinfo(struct intelfb_info *dinfo, struct fb_var_screeninfo *var)
}
/* Make sure the line length is a aligned correctly. */
- dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT);
+ if (IS_I9XX(dinfo))
+ dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT_I9XX);
+ else
+ dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT);
if (FIXED_MODE(dinfo))
dinfo->pitch = dinfo->initial_pitch;
diff --git a/drivers/video/intelfb/intelfbhw.c b/drivers/video/intelfb/intelfbhw.c
index 05f0a3c9440f..eba8f8f6a4d4 100644
--- a/drivers/video/intelfb/intelfbhw.c
+++ b/drivers/video/intelfb/intelfbhw.c
@@ -1005,6 +1005,7 @@ intelfbhw_mode_to_hw(struct intelfb_info *dinfo, struct intelfb_hwstate *hw,
u32 vsync_start, vsync_end, vblank_start, vblank_end, vtotal, vactive;
u32 vsync_pol, hsync_pol;
u32 *vs, *vb, *vt, *hs, *hb, *ht, *ss, *pipe_conf;
+ u32 stride_alignment;
DBG_MSG("intelfbhw_mode_to_hw\n");
@@ -1216,9 +1217,11 @@ intelfbhw_mode_to_hw(struct intelfb_info *dinfo, struct intelfb_hwstate *hw,
hw->disp_a_base += dinfo->fb.offset << 12;
/* Check stride alignment. */
- if (hw->disp_a_stride % STRIDE_ALIGNMENT != 0) {
+ stride_alignment = IS_I9XX(dinfo) ? STRIDE_ALIGNMENT_I9XX :
+ STRIDE_ALIGNMENT;
+ if (hw->disp_a_stride % stride_alignment != 0) {
WRN_MSG("display stride %d has bad alignment %d\n",
- hw->disp_a_stride, STRIDE_ALIGNMENT);
+ hw->disp_a_stride, stride_alignment);
return 1;
}