diff options
| author | Ville Syrjala <syrjala@sci.fi> | 2009-06-30 18:41:42 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-07-01 01:56:01 (GMT) |
| commit | ee905d0c58a440a5bd10c845e8305f6f7f706be2 (patch) | |
| tree | 0d67b5e021dd947ef047d722ff7872db2e38afa3 /drivers/video/aty/mach64_accel.c | |
| parent | eafad22a05fdaca60f06433ffe8810aaa920d539 (diff) | |
| download | linux-ee905d0c58a440a5bd10c845e8305f6f7f706be2.tar.xz | |
atyfb: fix alignment for block writes
Block writes require 64 byte alignment. Since block writes could be used
with SGRAM or WRAM also refine the memory type detection to check for
either type before deciding to use the 64 byte alignment.
Signed-off-by: Ville Syrjala <syrjala@sci.fi>
Tested-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/aty/mach64_accel.c')
| -rw-r--r-- | drivers/video/aty/mach64_accel.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/video/aty/mach64_accel.c b/drivers/video/aty/mach64_accel.c index 0cc9724..51fcc0a 100644 --- a/drivers/video/aty/mach64_accel.c +++ b/drivers/video/aty/mach64_accel.c @@ -63,14 +63,17 @@ static void reset_GTC_3D_engine(const struct atyfb_par *par) void aty_init_engine(struct atyfb_par *par, struct fb_info *info) { u32 pitch_value; + u32 vxres; /* determine modal information from global mode structure */ - pitch_value = info->var.xres_virtual; + pitch_value = info->fix.line_length / (info->var.bits_per_pixel / 8); + vxres = info->var.xres_virtual; if (info->var.bits_per_pixel == 24) { /* In 24 bpp, the engine is in 8 bpp - this requires that all */ /* horizontal coordinates and widths must be adjusted */ pitch_value *= 3; + vxres *= 3; } /* On GTC (RagePro), we need to reset the 3D engine before */ @@ -133,7 +136,7 @@ void aty_init_engine(struct atyfb_par *par, struct fb_info *info) aty_st_le32(SC_LEFT, 0, par); aty_st_le32(SC_TOP, 0, par); aty_st_le32(SC_BOTTOM, par->crtc.vyres - 1, par); - aty_st_le32(SC_RIGHT, pitch_value - 1, par); + aty_st_le32(SC_RIGHT, vxres - 1, par); /* set background color to minimum value (usually BLACK) */ aty_st_le32(DP_BKGD_CLR, 0, par); |