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| author | Thomas Hellstrom <thellstrom@vmware.com> | 2010-10-01 10:21:48 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-10-01 21:08:50 +1000 |
| commit | 30c78bb838b26ec7997515844c0c734e454b3cba (patch) | |
| tree | 04df1e7175ee697874a099477298eed3c706ec8b /drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | |
| parent | 2854eedae2ff35d95e8923bebdb942bbd537c54f (diff) | |
| download | lwn-30c78bb838b26ec7997515844c0c734e454b3cba.tar.gz lwn-30c78bb838b26ec7997515844c0c734e454b3cba.zip | |
vmwgfx: vt-switch (master drop) fixes
We add an option not to enable fbdev, this option is off (0) by default.
Not enabling fbdev at load time makes it possible to co-operate with
vga16fb and vga text mode when VT switching.
However, if 3D resources are active when VT switching, we're currently
not able to switch over to vga, due to device limitations.
This fixes a bug where we previously lost 3D state during VT switch.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_kms.c')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index 64d7f47df868..1636e9ba81a1 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -898,7 +898,19 @@ int vmw_kms_save_vga(struct vmw_private *vmw_priv) save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH); save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT); vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID); + if (i == 0 && vmw_priv->num_displays == 1 && + save->width == 0 && save->height == 0) { + + /* + * It should be fairly safe to assume that these + * values are uninitialized. + */ + + save->width = vmw_priv->vga_width - save->pos_x; + save->height = vmw_priv->vga_height - save->pos_y; + } } + return 0; } |