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staging: vboxvideo: Restore page-flip support 

Restore page-flip support now that the atomic conversion is complete.

Since the mode parameter to vbox_crtc_set_base_and_mode() now never
is NULL call drm_atomic_crtc_needs_modeset() to check if we need to
check for input-mapping changes, to avoid doing unnecesarry work on
a flip. And hookup the drm_atomic_helper_page_flip helper to implement
the page_flip callback.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hans de Goede 2018-09-29 14:18:20 +02:00 committed by Greg Kroah-Hartman
parent 438340aa20
commit 5cf5332d52
1 changed files with 5 additions and 2 deletions
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7
drivers/staging/vboxvideo/vbox_mode.c
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@ -32,6 +32,7 @@
* Hans de Goede <hdegoede@redhat.com>
*/
#include <linux/export.h>
#include <drm/drm_atomic.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_plane_helper.h>
#include <drm/drm_atomic_helper.h>
@ -217,6 +218,7 @@ static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc,
struct vbox_bo *bo = gem_to_vbox_bo(to_vbox_framebuffer(fb)->obj);
struct vbox_private *vbox = crtc->dev->dev_private;
struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
bool needs_modeset = drm_atomic_crtc_needs_modeset(crtc->state);
mutex_lock(&vbox->hw_mutex);
@ -227,7 +229,7 @@ static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc,
vbox_crtc->fb_offset = vbox_bo_gpu_offset(bo);
/* vbox_do_modeset() checks vbox->single_framebuffer so update it now */
if (mode && vbox_set_up_input_mapping(vbox)) {
if (needs_modeset && vbox_set_up_input_mapping(vbox)) {
struct drm_crtc *crtci;
list_for_each_entry(crtci, &vbox->ddev.mode_config.crtc_list,
@ -241,7 +243,7 @@ static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc,
vbox_set_view(crtc);
vbox_do_modeset(crtc);
if (mode)
if (needs_modeset)
hgsmi_update_input_mapping(vbox->guest_pool, 0, 0,
vbox->input_mapping_width,
vbox->input_mapping_height);
@ -288,6 +290,7 @@ static void vbox_crtc_destroy(struct drm_crtc *crtc)
static const struct drm_crtc_funcs vbox_crtc_funcs = {
.set_config = drm_atomic_helper_set_config,
.page_flip = drm_atomic_helper_page_flip,
/* .gamma_set = vbox_crtc_gamma_set, */
.destroy = vbox_crtc_destroy,
.reset = drm_atomic_helper_crtc_reset,