drm/nv50: fix fbcon when framebuffer above 4GiB mark

This can't actually happen right now, but lets fix it anyway.

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

1 files changed, 7 insertions, 6 deletions

diff --git a/drivers/gpu/drm/nouveau/nv50_fbcon.c b/drivers/gpu/drm/nouveau/nv50_fbcon.c
index 25a3cd8794f9..a8c70e7e9184 100644
--- a/drivers/gpu/drm/nouveau/nv50_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nv50_fbcon.c
@@ -157,8 +157,11 @@ nv50_fbcon_accel_init(struct fb_info *info)
         struct drm_nouveau_private *dev_priv = dev->dev_private;
         struct nouveau_channel *chan = dev_priv->channel;
         struct nouveau_gpuobj *eng2d = NULL;
+        uint64_t fb;
         int ret, format;
 
+        fb = info->fix.smem_start - dev_priv->fb_phys + dev_priv->vm_vram_base;
+
         switch (info->var.bits_per_pixel) {
         case 8:
                 format = 0xf3;
@@ -248,9 +251,8 @@ nv50_fbcon_accel_init(struct fb_info *info)
         OUT_RING(chan, info->fix.line_length);
         OUT_RING(chan, info->var.xres_virtual);
         OUT_RING(chan, info->var.yres_virtual);
-        OUT_RING(chan, 0);
-        OUT_RING(chan, info->fix.smem_start - dev_priv->fb_phys +
-                         dev_priv->vm_vram_base);
+        OUT_RING(chan, upper_32_bits(fb));
+        OUT_RING(chan, lower_32_bits(fb));
         BEGIN_RING(chan, NvSub2D, 0x0230, 2);
         OUT_RING(chan, format);
         OUT_RING(chan, 1);
@@ -258,9 +260,8 @@ nv50_fbcon_accel_init(struct fb_info *info)
         OUT_RING(chan, info->fix.line_length);
         OUT_RING(chan, info->var.xres_virtual);
         OUT_RING(chan, info->var.yres_virtual);
-        OUT_RING(chan, 0);
-        OUT_RING(chan, info->fix.smem_start - dev_priv->fb_phys +
-                         dev_priv->vm_vram_base);
+        OUT_RING(chan, upper_32_bits(fb));
+        OUT_RING(chan, lower_32_bits(fb));
 
         return 0;
 }