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viafb: fix acceleration for some chips

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Fix a regression in hardware acceleration which made the accelerated
framebuffer unusable on some chips.  These need extra initialization and
an extra flag which is no longer needed/available on current chips.

Signed-off-by: Erik-Jan Post <ej.lfs@xs4all.nl>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Scott Fang <ScottFang@viatech.com.cn>
Cc: Joseph Chan <JosephChan@via.com.tw>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Erik-Jan Post 2010-01-15 17:01:06 -08:00 committed by Linus Torvalds
parent 8a3a95c32f
commit 97922b5462
1 changed files with 4 additions and 1 deletions
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5
drivers/video/via/accel.c
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@ -137,7 +137,7 @@ static int hw_bitblt_1(void __iomem *engine, u8 op, u32 width, u32 height,
tmp, dst_pitch);
return -EINVAL;
}
tmp = (tmp >> 3) | (dst_pitch << (16 - 3));
tmp = VIA_PITCH_ENABLE | (tmp >> 3) | (dst_pitch << (16 - 3));
writel(tmp, engine + 0x38);
if (op == VIA_BITBLT_FILL)
@ -352,6 +352,9 @@ int viafb_init_engine(struct fb_info *info)
viapar->shared->vq_vram_addr = viapar->fbmem_free;
viapar->fbmem_used += VQ_SIZE;
/* Init 2D engine reg to reset 2D engine */
writel(0x0, engine + VIA_REG_KEYCONTROL);
/* Init AGP and VQ regs */
switch (chip_name) {
case UNICHROME_K8M890: