/**
* vmw_sou_crtc_mode_set_nofb - Create new screen
*
* @crtc: CRTC associated with the new screen
*
* This function creates/destroys a screen. This function cannot fail, so if
* somehow we run into a failure, just do the best we can to get out.
*/
static void vmw_sou_crtc_mode_set_nofb(struct drm_crtc *crtc)
{
struct vmw_private *dev_priv;
struct vmw_screen_object_unit *sou;
struct vmw_framebuffer *vfb;
struct drm_framebuffer *fb;
struct drm_plane_state *ps;
struct vmw_plane_state *vps;
int ret;
sou = vmw_crtc_to_sou(crtc);
dev_priv = vmw_priv(crtc->dev);
ps = crtc->primary->state;
fb = ps->fb;
vps = vmw_plane_state_to_vps(ps);
vfb = (fb) ? vmw_framebuffer_to_vfb(fb) : NULL;
if (sou->defined) {
ret = vmw_sou_fifo_destroy(dev_priv, sou);
if (ret) {
DRM_ERROR("Failed to destroy Screen Object\n");
return;
}
}
if (vfb) {
struct drm_connector_state *conn_state;
struct vmw_connector_state *vmw_conn_state;
int x, y;
sou->buffer = vps->bo;
sou->buffer_size = vps->bo_size;
if (sou->base.is_implicit) {
x = crtc->x;
y = crtc->y;
} else {
conn_state = sou->base.connector.state;
vmw_conn_state = vmw_connector_state_to_vcs(conn_state);
x = vmw_conn_state->gui_x;
y = vmw_conn_state->gui_y;
}
ret = vmw_sou_fifo_create(dev_priv, sou, x, y, &crtc->mode);
if (ret)
DRM_ERROR("Failed to define Screen Object %dx%d\n",
crtc->x, crtc->y);
vmw_kms_add_active(dev_priv, &sou->base, vfb);
} else {
sou->buffer = NULL;
sou->buffer_size = 0;
vmw_kms_del_active(dev_priv, &sou->base);
}
}
/**
* vmw_stdu_crtc_page_flip - Binds a buffer to a screen target
*
* @crtc: CRTC to attach FB to
* @fb: FB to attach
* @event: Event to be posted. This event should've been alloced
* using k[mz]alloc, and should've been completely initialized.
* @page_flip_flags: Input flags.
*
* If the STDU uses the same display and content buffers, i.e. a true flip,
* this function will replace the existing display buffer with the new content
* buffer.
*
* If the STDU uses different display and content buffers, i.e. a blit, then
* only the content buffer will be updated.
*
* RETURNS:
* 0 on success, error code on failure
*/
static int vmw_stdu_crtc_page_flip(struct drm_crtc *crtc,
struct drm_framebuffer *new_fb,
struct drm_pending_vblank_event *event,
uint32_t flags)
{
struct vmw_private *dev_priv = vmw_priv(crtc->dev);
struct vmw_screen_target_display_unit *stdu;
struct drm_vmw_rect vclips;
struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(new_fb);
int ret;
dev_priv = vmw_priv(crtc->dev);
stdu = vmw_crtc_to_stdu(crtc);
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;
vclips.h = crtc->mode.vdisplay;
if (vfb->dmabuf)
ret = vmw_kms_stdu_dma(dev_priv, NULL, vfb, NULL, NULL, &vclips,
1, 1, true, false);
else
ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, &vclips,
NULL, 0, 0, 1, 1, NULL);
if (ret)
return ret;
if (event) {
struct vmw_fence_obj *fence = NULL;
struct drm_file *file_priv = event->base.file_priv;
vmw_execbuf_fence_commands(NULL, dev_priv, &fence, NULL);
if (!fence)
return -ENOMEM;
ret = vmw_event_fence_action_queue(file_priv, fence,
&event->base,
&event->event.tv_sec,
&event->event.tv_usec,
true);
vmw_fence_obj_unreference(&fence);
} else {
vmw_fifo_flush(dev_priv, false);
}
return 0;
}
/**
* Update the implicit fb to the current fb of this crtc.
* Must be called with the mode_config mutex held.
*/
void vmw_kms_screen_object_update_implicit_fb(struct vmw_private *dev_priv,
struct drm_crtc *crtc)
{
struct vmw_screen_object_unit *sou = vmw_crtc_to_sou(crtc);
BUG_ON(!sou->base.is_implicit);
dev_priv->sou_priv->implicit_fb =
vmw_framebuffer_to_vfb(sou->base.crtc.fb);
}
static int vmw_sou_crtc_set_config(struct drm_mode_set *set)
{
struct vmw_private *dev_priv;
struct vmw_screen_object_unit *sou;
struct drm_connector *connector;
struct drm_display_mode *mode;
struct drm_encoder *encoder;
struct vmw_framebuffer *vfb;
struct drm_framebuffer *fb;
struct drm_crtc *crtc;
int ret = 0;
if (!set)
return -EINVAL;
if (!set->crtc)
return -EINVAL;
/* get the sou */
crtc = set->crtc;
sou = vmw_crtc_to_sou(crtc);
vfb = set->fb ? vmw_framebuffer_to_vfb(set->fb) : NULL;
dev_priv = vmw_priv(crtc->dev);
if (set->num_connectors > 1) {
DRM_ERROR("to many connectors\n");
return -EINVAL;
}
if (set->num_connectors == 1 &&
set->connectors[0] != &sou->base.connector) {
DRM_ERROR("connector doesn't match %p %p\n",
set->connectors[0], &sou->base.connector);
return -EINVAL;
}
/* sou only supports one fb active at the time */
if (sou->base.is_implicit &&
dev_priv->sou_priv->implicit_fb && vfb &&
!(dev_priv->sou_priv->num_implicit == 1 &&
sou->active_implicit) &&
dev_priv->sou_priv->implicit_fb != vfb) {
DRM_ERROR("Multiple framebuffers not supported\n");
return -EINVAL;
}
/* since they always map one to one these are safe */
connector = &sou->base.connector;
encoder = &sou->base.encoder;
/* should we turn the crtc off */
if (set->num_connectors == 0 || !set->mode || !set->fb) {
ret = vmw_sou_fifo_destroy(dev_priv, sou);
/* the hardware has hung don't do anything more */
if (unlikely(ret != 0))
return ret;
connector->encoder = NULL;
encoder->crtc = NULL;
crtc->fb = NULL;
crtc->x = 0;
crtc->y = 0;
crtc->enabled = false;
vmw_sou_del_active(dev_priv, sou);
vmw_sou_backing_free(dev_priv, sou);
return 0;
}
/* we now know we want to set a mode */
mode = set->mode;
fb = set->fb;
if (set->x + mode->hdisplay > fb->width ||
set->y + mode->vdisplay > fb->height) {
DRM_ERROR("set outside of framebuffer\n");
return -EINVAL;
}
vmw_fb_off(dev_priv);
if (mode->hdisplay != crtc->mode.hdisplay ||
mode->vdisplay != crtc->mode.vdisplay) {
/* no need to check if depth is different, because backing
* store depth is forced to 4 by the device.
*/
ret = vmw_sou_fifo_destroy(dev_priv, sou);
/* the hardware has hung don't do anything more */
if (unlikely(ret != 0))
return ret;
vmw_sou_backing_free(dev_priv, sou);
}
if (!sou->buffer) {
/* forced to depth 4 by the device */
size_t size = mode->hdisplay * mode->vdisplay * 4;
ret = vmw_sou_backing_alloc(dev_priv, sou, size);
if (unlikely(ret != 0))
return ret;
}
ret = vmw_sou_fifo_create(dev_priv, sou, set->x, set->y, mode);
if (unlikely(ret != 0)) {
/*
* We are in a bit of a situation here, the hardware has
* hung and we may or may not have a buffer hanging of
* the screen object, best thing to do is not do anything
* if we where defined, if not just turn the crtc of.
* Not what userspace wants but it needs to htfu.
*/
if (sou->defined)
return ret;
connector->encoder = NULL;
encoder->crtc = NULL;
crtc->fb = NULL;
crtc->x = 0;
crtc->y = 0;
crtc->enabled = false;
return ret;
}
vmw_sou_add_active(dev_priv, sou, vfb);
connector->encoder = encoder;
encoder->crtc = crtc;
crtc->mode = *mode;
crtc->fb = fb;
crtc->x = set->x;
crtc->y = set->y;
crtc->enabled = true;
return 0;
}
int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct vmw_private *dev_priv = vmw_priv(dev);
struct drm_vmw_present_readback_arg *arg =
(struct drm_vmw_present_readback_arg *)data;
struct drm_vmw_fence_rep __user *user_fence_rep =
(struct drm_vmw_fence_rep __user *)
(unsigned long)arg->fence_rep;
struct vmw_master *vmaster = vmw_master(file_priv->master);
struct drm_vmw_rect __user *clips_ptr;
struct drm_vmw_rect *clips = NULL;
struct drm_framebuffer *fb;
struct vmw_framebuffer *vfb;
uint32_t num_clips;
int ret;
num_clips = arg->num_clips;
clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
if (unlikely(num_clips == 0))
return 0;
if (clips_ptr == NULL) {
DRM_ERROR("Argument clips_ptr must be specified.\n");
ret = -EINVAL;
goto out_clips;
}
clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
if (clips == NULL) {
DRM_ERROR("Failed to allocate clip rect list.\n");
ret = -ENOMEM;
goto out_clips;
}
ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
if (ret) {
DRM_ERROR("Failed to copy clip rects from userspace.\n");
ret = -EFAULT;
goto out_no_copy;
}
drm_modeset_lock_all(dev);
fb = drm_framebuffer_lookup(dev, arg->fb_id);
if (!fb) {
DRM_ERROR("Invalid framebuffer id.\n");
ret = -ENOENT;
goto out_no_fb;
}
vfb = vmw_framebuffer_to_vfb(fb);
if (!vfb->dmabuf) {
DRM_ERROR("Framebuffer not dmabuf backed.\n");
ret = -EINVAL;
goto out_no_ttm_lock;
}
ret = ttm_read_lock(&vmaster->lock, true);
if (unlikely(ret != 0))
goto out_no_ttm_lock;
ret = vmw_kms_readback(dev_priv, file_priv,
vfb, user_fence_rep,
clips, num_clips);
ttm_read_unlock(&vmaster->lock);
out_no_ttm_lock:
drm_framebuffer_unreference(fb);
out_no_fb:
drm_modeset_unlock_all(dev);
out_no_copy:
kfree(clips);
out_clips:
return ret;
}
int vmw_present_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
struct vmw_private *dev_priv = vmw_priv(dev);
struct drm_vmw_present_arg *arg =
(struct drm_vmw_present_arg *)data;
struct vmw_surface *surface;
struct vmw_master *vmaster = vmw_master(file_priv->master);
struct drm_vmw_rect __user *clips_ptr;
struct drm_vmw_rect *clips = NULL;
struct drm_framebuffer *fb;
struct vmw_framebuffer *vfb;
struct vmw_resource *res;
uint32_t num_clips;
int ret;
num_clips = arg->num_clips;
clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
if (unlikely(num_clips == 0))
return 0;
if (clips_ptr == NULL) {
DRM_ERROR("Variable clips_ptr must be specified.\n");
ret = -EINVAL;
goto out_clips;
}
clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
if (clips == NULL) {
DRM_ERROR("Failed to allocate clip rect list.\n");
ret = -ENOMEM;
goto out_clips;
}
ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
if (ret) {
DRM_ERROR("Failed to copy clip rects from userspace.\n");
ret = -EFAULT;
goto out_no_copy;
}
drm_modeset_lock_all(dev);
fb = drm_framebuffer_lookup(dev, arg->fb_id);
if (!fb) {
DRM_ERROR("Invalid framebuffer id.\n");
ret = -ENOENT;
goto out_no_fb;
}
vfb = vmw_framebuffer_to_vfb(fb);
ret = ttm_read_lock(&vmaster->lock, true);
if (unlikely(ret != 0))
goto out_no_ttm_lock;
ret = vmw_user_resource_lookup_handle(dev_priv, tfile, arg->sid,
user_surface_converter,
&res);
if (ret)
goto out_no_surface;
surface = vmw_res_to_srf(res);
ret = vmw_kms_present(dev_priv, file_priv,
vfb, surface, arg->sid,
arg->dest_x, arg->dest_y,
clips, num_clips);
/* vmw_user_surface_lookup takes one ref so does new_fb */
vmw_surface_unreference(&surface);
out_no_surface:
ttm_read_unlock(&vmaster->lock);
out_no_ttm_lock:
drm_framebuffer_unreference(fb);
out_no_fb:
drm_modeset_unlock_all(dev);
out_no_copy:
kfree(clips);
out_clips:
return ret;
}
static int vmw_sou_crtc_page_flip(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
struct drm_pending_vblank_event *event,
uint32_t flags)
{
struct vmw_private *dev_priv = vmw_priv(crtc->dev);
struct drm_framebuffer *old_fb = crtc->primary->fb;
struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(fb);
struct vmw_fence_obj *fence = NULL;
struct drm_vmw_rect vclips;
int ret;
if (!vmw_kms_crtc_flippable(dev_priv, crtc))
return -EINVAL;
crtc->primary->fb = fb;
/* do a full screen dirty update */
vclips.x = crtc->x;
vclips.y = crtc->y;
vclips.w = crtc->mode.hdisplay;
vclips.h = crtc->mode.vdisplay;
if (vfb->dmabuf)
ret = vmw_kms_sou_do_dmabuf_dirty(dev_priv, vfb,
NULL, &vclips, 1, 1,
true, &fence);
else
ret = vmw_kms_sou_do_surface_dirty(dev_priv, vfb,
NULL, &vclips, NULL,
0, 0, 1, 1, &fence);
if (ret != 0)
goto out_no_fence;
if (!fence) {
ret = -EINVAL;
goto out_no_fence;
}
if (event) {
struct drm_file *file_priv = event->base.file_priv;
ret = vmw_event_fence_action_queue(file_priv, fence,
&event->base,
&event->event.tv_sec,
&event->event.tv_usec,
true);
}
/*
* No need to hold on to this now. The only cleanup
* we need to do if we fail is unref the fence.
*/
vmw_fence_obj_unreference(&fence);
if (vmw_crtc_to_du(crtc)->is_implicit)
vmw_kms_update_implicit_fb(dev_priv, crtc);
return ret;
out_no_fence:
crtc->primary->fb = old_fb;
return ret;
}
static int vmw_sou_crtc_page_flip(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
struct drm_pending_vblank_event *event,
uint32_t flags)
{
struct vmw_private *dev_priv = vmw_priv(crtc->dev);
struct drm_framebuffer *old_fb = crtc->primary->fb;
struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(fb);
struct vmw_fence_obj *fence = NULL;
struct drm_clip_rect clips;
int ret;
/* require ScreenObject support for page flipping */
if (!dev_priv->sou_priv)
return -ENOSYS;
if (!vmw_sou_screen_object_flippable(dev_priv, crtc))
return -EINVAL;
crtc->primary->fb = fb;
/* do a full screen dirty update */
clips.x1 = clips.y1 = 0;
clips.x2 = fb->width;
clips.y2 = fb->height;
if (vfb->dmabuf)
ret = vmw_kms_sou_do_dmabuf_dirty(dev_priv, vfb,
&clips, 1, 1,
true, &fence);
else
ret = vmw_kms_sou_do_surface_dirty(dev_priv, vfb,
&clips, NULL, NULL,
0, 0, 1, 1, &fence);
if (ret != 0)
goto out_no_fence;
if (!fence) {
ret = -EINVAL;
goto out_no_fence;
}
if (event) {
struct drm_file *file_priv = event->base.file_priv;
ret = vmw_event_fence_action_queue(file_priv, fence,
&event->base,
&event->event.tv_sec,
&event->event.tv_usec,
true);
}
/*
* No need to hold on to this now. The only cleanup
* we need to do if we fail is unref the fence.
*/
vmw_fence_obj_unreference(&fence);
if (vmw_crtc_to_du(crtc)->is_implicit)
vmw_sou_update_implicit_fb(dev_priv, crtc);
return ret;
out_no_fence:
crtc->primary->fb = old_fb;
return ret;
}
/**
* vmw_stdu_crtc_set_config - Sets a mode
*
* @set: mode parameters
*
* This function is the device-specific portion of the DRM CRTC mode set.
* For the SVGA device, we do this by defining a Screen Target, binding a
* GB Surface to that target, and finally update the screen target.
*
* RETURNS:
* 0 on success, error code otherwise
*/
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;
struct drm_crtc *crtc;
struct drm_encoder *encoder;
struct drm_connector *connector;
bool turning_off;
int ret;
if (!set || !set->crtc)
return -EINVAL;
crtc = set->crtc;
stdu = vmw_crtc_to_stdu(crtc);
mode = set->mode;
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");
return -EINVAL;
}
if (set->num_connectors == 1 &&
set->connectors[0] != &stdu->base.connector) {
DRM_ERROR("Connectors don't match %p %p\n",
set->connectors[0], &stdu->base.connector);
return -EINVAL;
}
if (!turning_off && (set->x + mode->hdisplay > new_fb->width ||
set->y + mode->vdisplay > new_fb->height)) {
DRM_ERROR("Set outside of framebuffer\n");
return -EINVAL;
}
/* Only one active implicit frame-buffer at a time. */
mutex_lock(&dev_priv->global_kms_state_mutex);
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) {
mutex_unlock(&dev_priv->global_kms_state_mutex);
DRM_ERROR("Multiple implicit framebuffers not supported.\n");
return -EINVAL;
}
mutex_unlock(&dev_priv->global_kms_state_mutex);
/* Since they always map one to one these are safe */
connector = &stdu->base.connector;
encoder = &stdu->base.encoder;
if (stdu->defined) {
ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
if (ret)
return ret;
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)
return ret;
crtc->primary->fb = NULL;
crtc->enabled = false;
encoder->crtc = NULL;
connector->encoder = NULL;
stdu->content_fb_type = SAME_AS_DISPLAY;
crtc->x = set->x;
crtc->y = set->y;
}
if (turning_off)
return 0;
/*
* Steps to displaying a surface, assume surface is already
* bound:
* 1. define a screen target
* 2. bind a fb to the screen target
* 3. update that screen target (this is done later by
* vmw_kms_stdu_do_surface_dirty_or_present)
*/
/*
* Note on error handling: We can't really restore the crtc to
* it's original state on error, but we at least update the
* current state to what's submitted to hardware to enable
* future recovery.
*/
vmw_svga_enable(dev_priv);
ret = vmw_stdu_define_st(dev_priv, stdu, mode, set->x, set->y);
if (ret)
return ret;
crtc->x = set->x;
crtc->y = set->y;
crtc->mode = *mode;
ret = vmw_stdu_bind_fb(dev_priv, crtc, mode, new_fb);
if (ret)
return ret;
vmw_kms_add_active(dev_priv, &stdu->base, vfb);
crtc->enabled = true;
connector->encoder = encoder;
encoder->crtc = crtc;
return 0;
}
/**
* vmw_stdu_bind_fb - Bind an fb to a defined screen target
*
* @dev_priv: Pointer to a device private struct.
* @crtc: The crtc holding the screen target.
* @mode: The mode currently used by the screen target. Must be non-NULL.
* @new_fb: The new framebuffer to bind. Must be non-NULL.
*
* RETURNS:
* 0 on success, error code on failure.
*/
static int vmw_stdu_bind_fb(struct vmw_private *dev_priv,
struct drm_crtc *crtc,
struct drm_display_mode *mode,
struct drm_framebuffer *new_fb)
{
struct vmw_screen_target_display_unit *stdu = vmw_crtc_to_stdu(crtc);
struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(new_fb);
struct vmw_surface *new_display_srf = NULL;
enum stdu_content_type new_content_type;
struct vmw_framebuffer_surface *new_vfbs;
int ret;
WARN_ON_ONCE(!stdu->defined);
new_vfbs = (vfb->dmabuf) ? NULL : vmw_framebuffer_to_vfbs(new_fb);
if (new_vfbs && new_vfbs->surface->base_size.width == mode->hdisplay &&
new_vfbs->surface->base_size.height == mode->vdisplay)
new_content_type = SAME_AS_DISPLAY;
else if (vfb->dmabuf)
new_content_type = SEPARATE_DMA;
else
new_content_type = SEPARATE_SURFACE;
if (new_content_type != SAME_AS_DISPLAY &&
!stdu->display_srf) {
struct vmw_surface content_srf;
struct drm_vmw_size display_base_size = {0};
display_base_size.width = mode->hdisplay;
display_base_size.height = mode->vdisplay;
display_base_size.depth = 1;
/*
* If content buffer is a DMA buf, then we have to construct
* surface info
*/
if (new_content_type == SEPARATE_DMA) {
switch (new_fb->bits_per_pixel) {
case 32:
content_srf.format = SVGA3D_X8R8G8B8;
break;
case 16:
content_srf.format = SVGA3D_R5G6B5;
break;
case 8:
content_srf.format = SVGA3D_P8;
break;
default:
DRM_ERROR("Invalid format\n");
return -EINVAL;
}
content_srf.flags = 0;
content_srf.mip_levels[0] = 1;
content_srf.multisample_count = 0;
} else {
content_srf = *new_vfbs->surface;
}
ret = vmw_surface_gb_priv_define(crtc->dev,
0, /* because kernel visible only */
content_srf.flags,
content_srf.format,
true, /* a scanout buffer */
content_srf.mip_levels[0],
content_srf.multisample_count,
0,
display_base_size,
&new_display_srf);
if (unlikely(ret != 0)) {
DRM_ERROR("Could not allocate screen target surface.\n");
return ret;
}
} else if (new_content_type == SAME_AS_DISPLAY) {
new_display_srf = vmw_surface_reference(new_vfbs->surface);
}
if (new_display_srf) {
/* Pin new surface before flipping */
ret = vmw_resource_pin(&new_display_srf->res, false);
if (ret)
goto out_srf_unref;
ret = vmw_stdu_bind_st(dev_priv, stdu, &new_display_srf->res);
if (ret)
goto out_srf_unpin;
/* Unpin and unreference old surface */
vmw_stdu_unpin_display(stdu);
/* Transfer the reference */
stdu->display_srf = new_display_srf;
new_display_srf = NULL;
}
crtc->primary->fb = new_fb;
stdu->content_fb_type = new_content_type;
return 0;
out_srf_unpin:
vmw_resource_unpin(&new_display_srf->res);
out_srf_unref:
vmw_surface_unreference(&new_display_srf);
return ret;
}
static void
vmw_sou_primary_plane_atomic_update(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct drm_crtc *crtc = plane->state->crtc;
struct drm_pending_vblank_event *event = NULL;
struct vmw_fence_obj *fence = NULL;
int ret;
if (crtc && plane->state->fb) {
struct vmw_private *dev_priv = vmw_priv(crtc->dev);
struct vmw_framebuffer *vfb =
vmw_framebuffer_to_vfb(plane->state->fb);
struct drm_vmw_rect vclips;
vclips.x = crtc->x;
vclips.y = crtc->y;
vclips.w = crtc->mode.hdisplay;
vclips.h = crtc->mode.vdisplay;
if (vfb->bo)
ret = vmw_kms_sou_do_bo_dirty(dev_priv, vfb, NULL,
&vclips, 1, 1, true,
&fence, crtc);
else
ret = vmw_kms_sou_do_surface_dirty(dev_priv, vfb, NULL,
&vclips, NULL, 0, 0,
1, 1, &fence, crtc);
/*
* We cannot really fail this function, so if we do, then output
* an error and maintain consistent atomic state.
*/
if (ret != 0)
DRM_ERROR("Failed to update screen.\n");
} else {
/*
* When disabling a plane, CRTC and FB should always be NULL
* together, otherwise it's an error.
* Here primary plane is being disable so should really blank
* the screen object display unit, if not already done.
*/
return;
}
event = crtc->state->event;
/*
* In case of failure and other cases, vblank event will be sent in
* vmw_du_crtc_atomic_flush.
*/
if (event && fence) {
struct drm_file *file_priv = event->base.file_priv;
ret = vmw_event_fence_action_queue(file_priv,
fence,
&event->base,
&event->event.vbl.tv_sec,
&event->event.vbl.tv_usec,
true);
if (unlikely(ret != 0))
DRM_ERROR("Failed to queue event on fence.\n");
else
crtc->state->event = NULL;
}
if (fence)
vmw_fence_obj_unreference(&fence);
}
/**
* vmw_stdu_crtc_set_config - Sets a mode
*
* @set: mode parameters
*
* This function is the device-specific portion of the DRM CRTC mode set.
* For the SVGA device, we do this by defining a Screen Target, binding a
* GB Surface to that target, and finally update the screen target.
*
* RETURNS:
* 0 on success, error code otherwise
*/
static int vmw_stdu_crtc_set_config(struct drm_mode_set *set)
{
struct vmw_private *dev_priv;
struct vmw_screen_target_display_unit *stdu;
struct vmw_framebuffer *vfb;
struct vmw_framebuffer_surface *new_vfbs;
struct drm_display_mode *mode;
struct drm_framebuffer *new_fb;
struct drm_crtc *crtc;
struct drm_encoder *encoder;
struct drm_connector *connector;
int ret;
if (!set || !set->crtc)
return -EINVAL;
crtc = set->crtc;
crtc->x = set->x;
crtc->y = set->y;
stdu = vmw_crtc_to_stdu(crtc);
mode = set->mode;
new_fb = set->fb;
dev_priv = vmw_priv(crtc->dev);
if (set->num_connectors > 1) {
DRM_ERROR("Too many connectors\n");
return -EINVAL;
}
if (set->num_connectors == 1 &&
set->connectors[0] != &stdu->base.connector) {
DRM_ERROR("Connectors don't match %p %p\n",
set->connectors[0], &stdu->base.connector);
return -EINVAL;
}
/* Since they always map one to one these are safe */
connector = &stdu->base.connector;
encoder = &stdu->base.encoder;
/*
* After this point the CRTC will be considered off unless a new fb
* is bound
*/
if (stdu->defined) {
/* Unbind current surface by binding an invalid one */
ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
if (unlikely(ret != 0))
return ret;
/* Update Screen Target, display will now be blank */
if (crtc->primary->fb) {
vmw_stdu_update_st(dev_priv, stdu);
if (unlikely(ret != 0))
return ret;
}
crtc->primary->fb = NULL;
crtc->enabled = false;
encoder->crtc = NULL;
connector->encoder = NULL;
vmw_stdu_unpin_display(stdu);
stdu->content_fb = NULL;
stdu->content_fb_type = SAME_AS_DISPLAY;
ret = vmw_stdu_destroy_st(dev_priv, stdu);
/* The hardware is hung, give up */
if (unlikely(ret != 0))
return ret;
}
/* Any of these conditions means the caller wants CRTC off */
if (set->num_connectors == 0 || !mode || !new_fb)
return 0;
if (set->x + mode->hdisplay > new_fb->width ||
set->y + mode->vdisplay > new_fb->height) {
DRM_ERROR("Set outside of framebuffer\n");
return -EINVAL;
}
stdu->content_fb = new_fb;
vfb = vmw_framebuffer_to_vfb(stdu->content_fb);
if (vfb->dmabuf)
stdu->content_fb_type = SEPARATE_DMA;
/*
* If the requested mode is different than the width and height
* of the FB or if the content buffer is a DMA buf, then allocate
* a display FB that matches the dimension of the mode
*/
if (mode->hdisplay != new_fb->width ||
mode->vdisplay != new_fb->height ||
stdu->content_fb_type != SAME_AS_DISPLAY) {
struct vmw_surface content_srf;
struct drm_vmw_size display_base_size = {0};
struct vmw_surface *display_srf;
display_base_size.width = mode->hdisplay;
display_base_size.height = mode->vdisplay;
display_base_size.depth = 1;
/*
* If content buffer is a DMA buf, then we have to construct
* surface info
*/
if (stdu->content_fb_type == SEPARATE_DMA) {
switch (new_fb->bits_per_pixel) {
case 32:
content_srf.format = SVGA3D_X8R8G8B8;
break;
case 16:
content_srf.format = SVGA3D_R5G6B5;
break;
case 8:
content_srf.format = SVGA3D_P8;
break;
default:
DRM_ERROR("Invalid format\n");
ret = -EINVAL;
goto err_unref_content;
}
content_srf.flags = 0;
content_srf.mip_levels[0] = 1;
content_srf.multisample_count = 0;
} else {
stdu->content_fb_type = SEPARATE_SURFACE;
new_vfbs = vmw_framebuffer_to_vfbs(new_fb);
content_srf = *new_vfbs->surface;
}
ret = vmw_surface_gb_priv_define(crtc->dev,
0, /* because kernel visible only */
content_srf.flags,
content_srf.format,
true, /* a scanout buffer */
content_srf.mip_levels[0],
content_srf.multisample_count,
0,
display_base_size,
&display_srf);
if (unlikely(ret != 0)) {
DRM_ERROR("Cannot allocate a display FB.\n");
goto err_unref_content;
}
stdu->display_srf = display_srf;
} else {
new_vfbs = vmw_framebuffer_to_vfbs(new_fb);
stdu->display_srf = new_vfbs->surface;
}
ret = vmw_stdu_pin_display(stdu);
if (unlikely(ret != 0)) {
stdu->display_srf = NULL;
goto err_unref_content;
}
vmw_svga_enable(dev_priv);
/*
* Steps to displaying a surface, assume surface is already
* bound:
* 1. define a screen target
* 2. bind a fb to the screen target
* 3. update that screen target (this is done later by
* vmw_kms_stdu_do_surface_dirty_or_present)
*/
ret = vmw_stdu_define_st(dev_priv, stdu);
if (unlikely(ret != 0))
goto err_unpin_display_and_content;
ret = vmw_stdu_bind_st(dev_priv, stdu, &stdu->display_srf->res);
if (unlikely(ret != 0))
goto err_unpin_destroy_st;
connector->encoder = encoder;
encoder->crtc = crtc;
crtc->mode = *mode;
crtc->primary->fb = new_fb;
crtc->enabled = true;
return ret;
err_unpin_destroy_st:
vmw_stdu_destroy_st(dev_priv, stdu);
err_unpin_display_and_content:
vmw_stdu_unpin_display(stdu);
err_unref_content:
stdu->content_fb = NULL;
return ret;
}
static int vmw_sou_crtc_page_flip(struct drm_crtc *crtc,
struct drm_framebuffer *new_fb,
struct drm_pending_vblank_event *event,
uint32_t flags,
struct drm_modeset_acquire_ctx *ctx)
{
struct vmw_private *dev_priv = vmw_priv(crtc->dev);
struct drm_framebuffer *old_fb = crtc->primary->fb;
struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(new_fb);
struct vmw_fence_obj *fence = NULL;
struct drm_vmw_rect vclips;
int ret;
if (!vmw_kms_crtc_flippable(dev_priv, crtc))
return -EINVAL;
flags &= ~DRM_MODE_PAGE_FLIP_ASYNC;
ret = drm_atomic_helper_page_flip(crtc, new_fb, NULL, flags, ctx);
if (ret) {
DRM_ERROR("Page flip error %d.\n", ret);
return ret;
}
/* do a full screen dirty update */
vclips.x = crtc->x;
vclips.y = crtc->y;
vclips.w = crtc->mode.hdisplay;
vclips.h = crtc->mode.vdisplay;
if (vfb->dmabuf)
ret = vmw_kms_sou_do_dmabuf_dirty(dev_priv, vfb,
NULL, &vclips, 1, 1,
true, &fence);
else
ret = vmw_kms_sou_do_surface_dirty(dev_priv, vfb,
NULL, &vclips, NULL,
0, 0, 1, 1, &fence);
if (ret != 0)
goto out_no_fence;
if (!fence) {
ret = -EINVAL;
goto out_no_fence;
}
if (event) {
struct drm_file *file_priv = event->base.file_priv;
ret = vmw_event_fence_action_queue(file_priv, fence,
&event->base,
&event->event.tv_sec,
&event->event.tv_usec,
true);
}
/*
* No need to hold on to this now. The only cleanup
* we need to do if we fail is unref the fence.
*/
vmw_fence_obj_unreference(&fence);
if (vmw_crtc_to_du(crtc)->is_implicit)
vmw_kms_update_implicit_fb(dev_priv, crtc);
return ret;
out_no_fence:
drm_atomic_set_fb_for_plane(crtc->primary->state, old_fb);
return ret;
}
int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct vmw_private *dev_priv = vmw_priv(dev);
struct drm_vmw_present_readback_arg *arg =
(struct drm_vmw_present_readback_arg *)data;
struct drm_vmw_fence_rep __user *user_fence_rep =
(struct drm_vmw_fence_rep __user *)
(unsigned long)arg->fence_rep;
struct vmw_master *vmaster = vmw_master(file_priv->master);
struct drm_vmw_rect __user *clips_ptr;
struct drm_vmw_rect *clips = NULL;
struct drm_mode_object *obj;
struct vmw_framebuffer *vfb;
uint32_t num_clips;
int ret;
num_clips = arg->num_clips;
clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
if (unlikely(num_clips == 0))
return 0;
if (clips_ptr == NULL) {
DRM_ERROR("Argument clips_ptr must be specified.\n");
ret = -EINVAL;
goto out_clips;
}
clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
if (clips == NULL) {
DRM_ERROR("Failed to allocate clip rect list.\n");
ret = -ENOMEM;
goto out_clips;
}
ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
if (ret) {
DRM_ERROR("Failed to copy clip rects from userspace.\n");
ret = -EFAULT;
goto out_no_copy;
}
ret = mutex_lock_interruptible(&dev->mode_config.mutex);
if (unlikely(ret != 0)) {
ret = -ERESTARTSYS;
goto out_no_mode_mutex;
}
obj = drm_mode_object_find(dev, arg->fb_id, DRM_MODE_OBJECT_FB);
if (!obj) {
DRM_ERROR("Invalid framebuffer id.\n");
ret = -EINVAL;
goto out_no_fb;
}
vfb = vmw_framebuffer_to_vfb(obj_to_fb(obj));
if (!vfb->dmabuf) {
DRM_ERROR("Framebuffer not dmabuf backed.\n");
ret = -EINVAL;
goto out_no_fb;
}
ret = ttm_read_lock(&vmaster->lock, true);
if (unlikely(ret != 0))
goto out_no_ttm_lock;
ret = vmw_kms_readback(dev_priv, file_priv,
vfb, user_fence_rep,
clips, num_clips);
ttm_read_unlock(&vmaster->lock);
out_no_ttm_lock:
out_no_fb:
mutex_unlock(&dev->mode_config.mutex);
out_no_mode_mutex:
out_no_copy:
kfree(clips);
out_clips:
return ret;
}
int vmw_present_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
struct vmw_private *dev_priv = vmw_priv(dev);
struct drm_vmw_present_arg *arg =
(struct drm_vmw_present_arg *)data;
struct vmw_surface *surface;
struct vmw_master *vmaster = vmw_master(file_priv->master);
struct drm_vmw_rect __user *clips_ptr;
struct drm_vmw_rect *clips = NULL;
struct drm_mode_object *obj;
struct vmw_framebuffer *vfb;
uint32_t num_clips;
int ret;
num_clips = arg->num_clips;
clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
if (unlikely(num_clips == 0))
return 0;
if (clips_ptr == NULL) {
DRM_ERROR("Variable clips_ptr must be specified.\n");
ret = -EINVAL;
goto out_clips;
}
clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
if (clips == NULL) {
DRM_ERROR("Failed to allocate clip rect list.\n");
ret = -ENOMEM;
goto out_clips;
}
ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
if (ret) {
DRM_ERROR("Failed to copy clip rects from userspace.\n");
ret = -EFAULT;
goto out_no_copy;
}
ret = mutex_lock_interruptible(&dev->mode_config.mutex);
if (unlikely(ret != 0)) {
ret = -ERESTARTSYS;
goto out_no_mode_mutex;
}
obj = drm_mode_object_find(dev, arg->fb_id, DRM_MODE_OBJECT_FB);
if (!obj) {
DRM_ERROR("Invalid framebuffer id.\n");
ret = -EINVAL;
goto out_no_fb;
}
vfb = vmw_framebuffer_to_vfb(obj_to_fb(obj));
ret = ttm_read_lock(&vmaster->lock, true);
if (unlikely(ret != 0))
goto out_no_ttm_lock;
ret = vmw_user_surface_lookup_handle(dev_priv, tfile, arg->sid,
&surface);
if (ret)
goto out_no_surface;
ret = vmw_kms_present(dev_priv, file_priv,
vfb, surface, arg->sid,
arg->dest_x, arg->dest_y,
clips, num_clips);
/* vmw_user_surface_lookup takes one ref so does new_fb */
vmw_surface_unreference(&surface);
out_no_surface:
ttm_read_unlock(&vmaster->lock);
out_no_ttm_lock:
out_no_fb:
mutex_unlock(&dev->mode_config.mutex);
out_no_mode_mutex:
out_no_copy:
kfree(clips);
out_clips:
return ret;
}
