drm/nouveau: fix handling of fbcon colours in 8bpp

Depending on the visual, the colours handed to us in fillrect() can either be
an actual colour, or an index into the pseudo-palette.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

2 files changed, 10 insertions, 4 deletions

diff --git a/drivers/gpu/drm/nouveau/nv04_fbcon.c b/drivers/gpu/drm/nouveau/nv04_fbcon.c
index d2d7f0838dc9..bd08a0dc9841 100644
--- a/drivers/gpu/drm/nouveau/nv04_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nv04_fbcon.c
@@ -62,7 +62,6 @@ nv04_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
         struct drm_device *dev = par->dev;
         struct drm_nouveau_private *dev_priv = dev->dev_private;
         struct nouveau_channel *chan = dev_priv->channel;
-        uint32_t color = ((uint32_t *) info->pseudo_palette)[rect->color];
 
         if (info->state != FBINFO_STATE_RUNNING)
                 return;
@@ -80,7 +79,11 @@ nv04_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
         BEGIN_RING(chan, NvSubGdiRect, 0x02fc, 1);
         OUT_RING(chan, (rect->rop != ROP_COPY) ? 1 : 3);
         BEGIN_RING(chan, NvSubGdiRect, 0x03fc, 1);
-        OUT_RING(chan, color);
+        if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
+            info->fix.visual == FB_VISUAL_DIRECTCOLOR)
+                OUT_RING(chan, ((uint32_t *)info->pseudo_palette)[rect->color]);
+        else
+                OUT_RING(chan, rect->color);
         BEGIN_RING(chan, NvSubGdiRect, 0x0400, 2);
         OUT_RING(chan, (rect->dx << 16) | rect->dy);
         OUT_RING(chan, (rect->width << 16) | rect->height);
diff --git a/drivers/gpu/drm/nouveau/nv50_fbcon.c b/drivers/gpu/drm/nouveau/nv50_fbcon.c
index c966ef834853..cc34356ab0b5 100644
--- a/drivers/gpu/drm/nouveau/nv50_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nv50_fbcon.c
@@ -10,7 +10,6 @@ nv50_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
         struct drm_device *dev = par->dev;
         struct drm_nouveau_private *dev_priv = dev->dev_private;
         struct nouveau_channel *chan = dev_priv->channel;
-        uint32_t color = ((uint32_t *) info->pseudo_palette)[rect->color];
 
         if (info->state != FBINFO_STATE_RUNNING)
                 return;
@@ -32,7 +31,11 @@ nv50_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
                 OUT_RING(chan, 1);
         }
         BEGIN_RING(chan, NvSub2D, 0x0588, 1);
-        OUT_RING(chan, color);
+        if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
+            info->fix.visual == FB_VISUAL_DIRECTCOLOR)
+                OUT_RING(chan, ((uint32_t *)info->pseudo_palette)[rect->color]);
+        else
+                OUT_RING(chan, rect->color);
         BEGIN_RING(chan, NvSub2D, 0x0600, 4);
         OUT_RING(chan, rect->dx);
         OUT_RING(chan, rect->dy);