drm/nouveau: Fix fbcon corruption with font width not divisible by 8

NV50 is nice and has a switch that autoaligns stuff for us. Pre-NV50,
we need to align input bitmap width manually.

Signed-off-by: Marcin Kościelnicki <koriakin@0x04.net>
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/nv04_fbcon.c b/drivers/gpu/drm/nouveau/nv04_fbcon.c
index 3da90c2..813b25c 100644 (file)
--- a/drivers/gpu/drm/nouveau/nv04_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nv04_fbcon.c
@@ -118,8 +118,8 @@ nv04_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
                return;
        }
 
-       width = ALIGN(image->width, 32);
-       dsize = (width * image->height) >> 5;
+       width = ALIGN(image->width, 8);
+       dsize = ALIGN(width * image->height, 32) >> 5;
 
        if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
            info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
@@ -136,8 +136,8 @@ nv04_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
                         ((image->dx + image->width) & 0xffff));
        OUT_RING(chan, bg);
        OUT_RING(chan, fg);
-       OUT_RING(chan, (image->height << 16) | image->width);
        OUT_RING(chan, (image->height << 16) | width);
+       OUT_RING(chan, (image->height << 16) | image->width);
        OUT_RING(chan, (image->dy << 16) | (image->dx & 0xffff));
 
        while (dsize) {

diff --git a/drivers/gpu/drm/nouveau/nv50_fbcon.c b/drivers/gpu/drm/nouveau/nv50_fbcon.c
index 993c712..25a3cd8 100644 (file)
--- a/drivers/gpu/drm/nouveau/nv50_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nv50_fbcon.c
@@ -233,7 +233,7 @@ nv50_fbcon_accel_init(struct fb_info *info)
        BEGIN_RING(chan, NvSub2D, 0x0808, 3);
        OUT_RING(chan, 0);
        OUT_RING(chan, 0);
-       OUT_RING(chan, 0);
+       OUT_RING(chan, 1);
        BEGIN_RING(chan, NvSub2D, 0x081c, 1);
        OUT_RING(chan, 1);
        BEGIN_RING(chan, NvSub2D, 0x0840, 4);