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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>
This commit is contained in:
Dennis Munsie 2006-05-27 18:17:52 +10:00 committed by Dave Airlie
parent 51d797474f
commit df7df8ab7b
3 changed files with 10 additions and 3 deletions
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1
drivers/video/intelfb/intelfb.h
View File

@ -59,6 +59,7 @@
#define INTEL_REG_SIZE 0x80000
#define STRIDE_ALIGNMENT 16
#define STRIDE_ALIGNMENT_I9XX 64
#define PALETTE_8_ENTRIES 256

5
drivers/video/intelfb/intelfbdrv.c
View File

@ -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;

7
drivers/video/intelfb/intelfbhw.c
View File

@ -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;
}