drm/radeon/kms: pick 8bpp console when 32MB or less VRAM

making the pinned console smaller gives X a bit more room to play with.

Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c
index b38c4c8e2c61..cb2f16a0b8ff 100644
--- a/drivers/gpu/drm/radeon/radeon_fb.c
+++ b/drivers/gpu/drm/radeon/radeon_fb.c
@@ -321,7 +321,14 @@ int radeon_parse_options(char *options)
 
 int radeonfb_probe(struct drm_device *dev)
 {
-        return drm_fb_helper_single_fb_probe(dev, 32, &radeonfb_create);
+        struct radeon_device *rdev = dev->dev_private;
+        int bpp_sel = 32;
+
+        /* select 8 bpp console on RN50 or 16MB cards */
+        if (ASIC_IS_RN50(rdev) || rdev->mc.real_vram_size <= (32*1024*1024))
+                bpp_sel = 8;
+
+        return drm_fb_helper_single_fb_probe(dev, bpp_sel, &radeonfb_create);
 }
 
 int radeonfb_remove(struct drm_device *dev, struct drm_framebuffer *fb)