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atyfb: speed up Mach64 cursor 

Save one fifo entry on cursor enabling and disabling.

Save another fifo entry for FB_CUR_SETPOS operation by removing redundant one.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Krzysztof Helt 2009-03-31 15:25:47 -07:00 committed by Linus Torvalds
parent 84d9077b33
commit 2f682fae61
1 changed files with 7 additions and 8 deletions
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15
drivers/video/aty/mach64_cursor.c
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@ -77,9 +77,13 @@ static int atyfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
if (par->asleep)
return -EPERM;
/* Hide cursor */
wait_for_fifo(1, par);
aty_st_le32(GEN_TEST_CNTL, aty_ld_le32(GEN_TEST_CNTL, par) & ~HWCURSOR_ENABLE, par);
if (cursor->enable)
aty_st_le32(GEN_TEST_CNTL, aty_ld_le32(GEN_TEST_CNTL, par)
| HWCURSOR_ENABLE, par);
else
aty_st_le32(GEN_TEST_CNTL, aty_ld_le32(GEN_TEST_CNTL, par)
& ~HWCURSOR_ENABLE, par);
/* set position */
if (cursor->set & FB_CUR_SETPOS) {
@ -109,7 +113,7 @@ static int atyfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
y<<=1;
h<<=1;
}
wait_for_fifo(4, par);
wait_for_fifo(3, par);
aty_st_le32(CUR_OFFSET, (info->fix.smem_len >> 3) + (yoff << 1), par);
aty_st_le32(CUR_HORZ_VERT_OFF,
((u32) (64 - h + yoff) << 16) | xoff, par);
@ -177,11 +181,6 @@ static int atyfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
}
}
if (cursor->enable) {
wait_for_fifo(1, par);
aty_st_le32(GEN_TEST_CNTL, aty_ld_le32(GEN_TEST_CNTL, par)
| HWCURSOR_ENABLE, par);
}
return 0;
}