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| author | Thomas Hellstrom | 2016-02-12 09:01:29 +0100 |
|---|---|---|
| committer | Thomas Hellstrom | 2016-03-14 14:58:27 +0100 |
| commit | 4d492a07ad62e58c47d863266ff347a9f202016b (patch) | |
| tree | 42f71096502ee4368c2111e1a267551ffa135aed | |
| parent | drm/vmwgfx: Break out implicit fb code (diff) | |
| download | kernel-qcow2-linux-4d492a07ad62e58c47d863266ff347a9f202016b.tar.gz kernel-qcow2-linux-4d492a07ad62e58c47d863266ff347a9f202016b.tar.xz kernel-qcow2-linux-4d492a07ad62e58c47d863266ff347a9f202016b.zip | |
drm/vmwgfx: Add implicit framebuffer checks to the screen target code
Just like for screen objects, make sure we use only a single framebuffer
for implicit placement.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c index c93af718a740..a5ab826879d1 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c @@ -510,6 +510,7 @@ out_srf_unref: static int vmw_stdu_crtc_set_config(struct drm_mode_set *set) { struct vmw_private *dev_priv; + struct vmw_framebuffer *vfb; struct vmw_screen_target_display_unit *stdu; struct drm_display_mode *mode; struct drm_framebuffer *new_fb; @@ -529,6 +530,7 @@ static int vmw_stdu_crtc_set_config(struct drm_mode_set *set) new_fb = set->fb; dev_priv = vmw_priv(crtc->dev); turning_off = set->num_connectors == 0 || !mode || !new_fb; + vfb = (new_fb) ? vmw_framebuffer_to_vfb(new_fb) : NULL; if (set->num_connectors > 1) { DRM_ERROR("Too many connectors\n"); @@ -548,6 +550,14 @@ static int vmw_stdu_crtc_set_config(struct drm_mode_set *set) return -EINVAL; } + /* Only one active implicit frame-buffer at a time. */ + if (!turning_off && stdu->base.is_implicit && dev_priv->implicit_fb && + !(dev_priv->num_implicit == 1 && stdu->base.active_implicit) + && dev_priv->implicit_fb != vfb) { + DRM_ERROR("Multiple implicit framebuffers not supported.\n"); + return -EINVAL; + } + /* Since they always map one to one these are safe */ connector = &stdu->base.connector; encoder = &stdu->base.encoder; @@ -559,6 +569,7 @@ static int vmw_stdu_crtc_set_config(struct drm_mode_set *set) vmw_stdu_unpin_display(stdu); (void) vmw_stdu_update_st(dev_priv, stdu); + vmw_kms_del_active(dev_priv, &stdu->base); ret = vmw_stdu_destroy_st(dev_priv, stdu); if (ret) @@ -603,6 +614,7 @@ static int vmw_stdu_crtc_set_config(struct drm_mode_set *set) if (ret) return ret; + vmw_kms_add_active(dev_priv, &stdu->base, vfb); crtc->enabled = true; connector->encoder = encoder; encoder->crtc = crtc; @@ -644,13 +656,16 @@ static int vmw_stdu_crtc_page_flip(struct drm_crtc *crtc, dev_priv = vmw_priv(crtc->dev); stdu = vmw_crtc_to_stdu(crtc); - if (!stdu->defined) + if (!stdu->defined || !vmw_kms_crtc_flippable(dev_priv, crtc)) return -EINVAL; ret = vmw_stdu_bind_fb(dev_priv, crtc, &crtc->mode, new_fb); if (ret) return ret; + if (stdu->base.is_implicit) + vmw_kms_update_implicit_fb(dev_priv, crtc); + vclips.x = crtc->x; vclips.y = crtc->y; vclips.w = crtc->mode.hdisplay; |