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drm/nouveau/fbcon/g80: reduce PUSH_SPACE alloc, fire ring on accel init 

Only 58 words get written to the ring, not 59. Also, normalize the accel
init wrt nvc0 and nv04 fbcon impls by firing the ring at accel init time
rather than waiting until "later".

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ilia Mirkin 2015-06-29 20:49:48 -04:00 committed by Ben Skeggs
parent 4fd26cb1e4
commit b7eea2d7e6
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/nouveau/nv50_fbcon.c
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@ -188,7 +188,7 @@ nv50_fbcon_accel_init(struct fb_info *info)
if (ret)
return ret;
ret = RING_SPACE(chan, 59);
ret = RING_SPACE(chan, 58);
if (ret) {
nouveau_fbcon_gpu_lockup(info);
return ret;
@ -252,6 +252,7 @@ nv50_fbcon_accel_init(struct fb_info *info)
OUT_RING(chan, info->var.yres_virtual);
OUT_RING(chan, upper_32_bits(fb->vma.offset));
OUT_RING(chan, lower_32_bits(fb->vma.offset));
FIRE_RING(chan);
return 0;
}