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drm/vmwgfx: Add and connect atomic state object check/commit 

This connects the main state object check and commit function.

v2
* Use drm_atomic_helper_commit() rather than a vmwgfx-specific one

Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
This commit is contained in:
Sinclair Yeh 2017-03-23 14:24:53 -07:00
parent d947d1b71d
commit c46a30644a
1 changed files with 48 additions and 0 deletions
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48
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
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@ -1579,8 +1579,56 @@ static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
return &vfb->base;
}
/**
* vmw_kms_atomic_check_modeset- validate state object for modeset changes
*
* @dev: DRM device
* @state: the driver state object
*
* This is a simple wrapper around drm_atomic_helper_check_modeset() for
* us to assign a value to mode->crtc_clock so that
* drm_calc_timestamping_constants() won't throw an error message
*
* RETURNS
* Zero for success or -errno
*/
int
vmw_kms_atomic_check_modeset(struct drm_device *dev,
struct drm_atomic_state *state)
{
struct drm_crtc_state *crtc_state;
struct drm_crtc *crtc;
struct vmw_private *dev_priv = vmw_priv(dev);
int i;
for_each_crtc_in_state(state, crtc, crtc_state, i) {
unsigned long requested_bb_mem = 0;
if (dev_priv->active_display_unit == vmw_du_screen_target) {
if (crtc->primary->fb) {
int cpp = crtc->primary->fb->pitches[0] /
crtc->primary->fb->width;
requested_bb_mem += crtc->mode.hdisplay * cpp *
crtc->mode.vdisplay;
}
if (requested_bb_mem > dev_priv->prim_bb_mem)
return -EINVAL;
}
}
return drm_atomic_helper_check(dev, state);
}
static const struct drm_mode_config_funcs vmw_kms_funcs = {
.fb_create = vmw_kms_fb_create,
.atomic_check = vmw_kms_atomic_check_modeset,
.atomic_commit = drm_atomic_helper_commit,
};
static int vmw_kms_generic_present(struct vmw_private *dev_priv,