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>

diff --git a/drivers/video/intelfb/intelfb.h b/drivers/video/intelfb/intelfb.h
index 631a3a9..469b06c 100644 (file)
--- 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 2aba6a4..b92bc90 100644 (file)
--- 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 05f0a3c..eba8f8f 100644 (file)
--- 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;
        }