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drm/vmwgfx: Explicityly track screen target width and height 

We can no longer make the assumption that vmw_stdu_update_st() will
be called when there's a valid display surface attached.  So
instead of using display_srf for width and height, make a record of
these paremeters when the screen target is first defined.

Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
hifive-unleashed-5.1
Sinclair Yeh 2017-03-23 14:40:04 -07:00
parent f7c478be0a
commit 9aa8dcab7e
1 changed files with 8 additions and 3 deletions
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11
drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
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@ -106,6 +106,7 @@ struct vmw_screen_target_display_unit {
struct vmw_display_unit base;
const struct vmw_surface *display_srf;
enum stdu_content_type content_fb_type;
s32 display_width, display_height;
bool defined;
};
@ -184,6 +185,8 @@ static int vmw_stdu_define_st(struct vmw_private *dev_priv,
vmw_fifo_commit(dev_priv, sizeof(*cmd));
stdu->defined = true;
stdu->display_width = mode->hdisplay;
stdu->display_height = mode->vdisplay;
return 0;
}
@ -281,7 +284,6 @@ static int vmw_stdu_update_st(struct vmw_private *dev_priv,
struct vmw_screen_target_display_unit *stdu)
{
struct vmw_stdu_update *cmd;
struct drm_crtc *crtc = &stdu->base.crtc;
if (!stdu->defined) {
DRM_ERROR("No screen target defined");
@ -295,8 +297,9 @@ static int vmw_stdu_update_st(struct vmw_private *dev_priv,
return -ENOMEM;
}
vmw_stdu_populate_update(cmd, stdu->base.unit, 0, crtc->mode.hdisplay,
0, crtc->mode.vdisplay);
vmw_stdu_populate_update(cmd, stdu->base.unit,
0, stdu->display_width,
0, stdu->display_height);
vmw_fifo_commit(dev_priv, sizeof(*cmd));
@ -346,6 +349,8 @@ static int vmw_stdu_destroy_st(struct vmw_private *dev_priv,
DRM_ERROR("Failed to sync with HW");
stdu->defined = false;
stdu->display_width = 0;
stdu->display_height = 0;
return ret;
}