WebSVN – Kolibri OS – Diff – /drivers/video/drm/vmwgfx/vmwgfx_scrn.c

 /**************************************************************************
+ *
- * Copyright © 2011 VMware, Inc., Palo Alto, CA., USA
+ * Copyright © 2011-2015 VMware, Inc., Palo Alto, CA., USA
  * All Rights Reserved.
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the
  * "Software"), to deal in the Software without restriction, including
  * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
  **************************************************************************/
+#include "vmwgfx_kms.h"
-#include "vmwgfx_kms.h"
+#include
 #define vmw_crtc_to_sou(x) \
 	container_of(x, struct vmw_screen_object_unit, base.crtc)
 #define vmw_encoder_to_sou(x) \
+	container_of(x, struct vmw_screen_object_unit, base.encoder)
+#define vmw_connector_to_sou(x) \
+	container_of(x, struct vmw_screen_object_unit, base.connector)
+/**
+ * struct vmw_kms_sou_surface_dirty - Closure structure for
+ * blit surface to screen command.
+ * @base: The base type we derive from. Used by vmw_kms_helper_dirty().
+ * @left: Left side of bounding box.
+ * @right: Right side of bounding box.
+ * @top: Top side of bounding box.
+ * @bottom: Bottom side of bounding box.
+ * @dst_x: Difference between source clip rects and framebuffer coordinates.
+ * @dst_y: Difference between source clip rects and framebuffer coordinates.
+ * @sid: Surface id of surface to copy from.
+ */
+struct vmw_kms_sou_surface_dirty {
+	struct vmw_kms_dirty base;
+	s32 left, right, top, bottom;
+	s32 dst_x, dst_y;
+	u32 sid;
+};
+/*
+ * SVGA commands that are used by this code. Please see the device headers
+ * for explanation.
+ */
+struct vmw_kms_sou_readback_blit {
+	uint32 header;
+	SVGAFifoCmdBlitScreenToGMRFB body;
+};
+struct vmw_kms_sou_dmabuf_blit {
+	uint32 header;
+	SVGAFifoCmdBlitGMRFBToScreen body;
+};
+struct vmw_kms_sou_dirty_cmd {
+	SVGA3dCmdHeader header;
+	SVGA3dCmdBlitSurfaceToScreen body;
+};
-	container_of(x, struct vmw_screen_object_unit, base.encoder)
+/*
-#define vmw_connector_to_sou(x) \
+ * Other structs.
-	container_of(x, struct vmw_screen_object_unit, base.connector)
+ */
+struct vmw_screen_object_display {
 	unsigned num_implicit;
 struct vmw_screen_object_display {
-	unsigned num_implicit;
+	struct vmw_framebuffer *implicit_fb;
 	SVGAFifoCmdDefineGMRFB cur;
 	bool active_implicit;
 };
 static void vmw_sou_destroy(struct vmw_screen_object_unit *sou)
 {
-//   vmw_display_unit_cleanup(&sou->base);
+	vmw_du_cleanup(&sou->base);
 	kfree(sou);
+}
  * Free the backing store.
  */
 static void vmw_sou_backing_free(struct vmw_private *dev_priv,
 				 struct vmw_screen_object_unit *sou)
+{
-	struct ttm_buffer_object *bo;
-	if (unlikely(sou->buffer == NULL))
+	vmw_dmabuf_unreference(&sou->buffer);
-		return;
-	bo = &sou->buffer->base;
-	ttm_bo_unref(&bo);
-	sou->buffer = NULL;
 	sou->buffer_size = 0;
+}
 /**
 		return -ENOMEM;
 	/* After we have alloced the backing store might not be able to
 	 * resume the overlays, this is preferred to failing to alloc.
 	 */
-//    vmw_overlay_pause_all(dev_priv);
+	vmw_overlay_pause_all(dev_priv);
 	ret = vmw_dmabuf_init(dev_priv, sou->buffer, size,
 			      &vmw_vram_ne_placement,
 			      false, &vmw_dmabuf_bo_free);
-//   vmw_overlay_resume_all(dev_priv);
+	vmw_overlay_resume_all(dev_priv);
 	if (unlikely(ret != 0))
 		sou->buffer = NULL; /* vmw_dmabuf_init frees on error */
 	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");
+		DRM_ERROR("Too 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",
+		DRM_ERROR("Connector doesn't match %p %p\n",
 			set->connectors[0], &sou->base.connector);
 		return -EINVAL;
 	    set->y + mode->vdisplay > fb->height) {
 		DRM_ERROR("set outside of framebuffer\n");
 		return -EINVAL;
+	}
-//   vmw_fb_off(dev_priv);
+	vmw_svga_enable(dev_priv);
 	if (mode->hdisplay != crtc->mode.hdisplay ||
 	    mode->vdisplay != crtc->mode.vdisplay) {
 	crtc->enabled = true;
 	return 0;
+}
+/**
+ * Returns if this unit can be page flipped.
+ * Must be called with the mode_config mutex held.
+ */
+static bool vmw_sou_screen_object_flippable(struct vmw_private *dev_priv,
+					    struct drm_crtc *crtc)
+{
+	struct vmw_screen_object_unit *sou = vmw_crtc_to_sou(crtc);
+	if (!sou->base.is_implicit)
+		return true;
+	if (dev_priv->sou_priv->num_implicit != 1)
+		return false;
+	return true;
+}
+/**
+ * Update the implicit fb to the current fb of this crtc.
+ * Must be called with the mode_config mutex held.
+ */
+static void vmw_sou_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.primary->fb);
+}
 static struct drm_crtc_funcs vmw_screen_object_crtc_funcs = {
 	.save = vmw_du_crtc_save,
 	.restore = vmw_du_crtc_restore,
 static void vmw_sou_connector_destroy(struct drm_connector *connector)
+{
 	vmw_sou_destroy(vmw_connector_to_sou(connector));
+}
-static struct drm_connector_funcs vmw_legacy_connector_funcs = {
+static struct drm_connector_funcs vmw_sou_connector_funcs = {
 	.dpms = vmw_du_connector_dpms,
 	.save = vmw_du_connector_save,
 	.restore = vmw_du_connector_restore,
 	.detect = vmw_du_connector_detect,
 	sou->base.pref_width = dev_priv->initial_width;
 	sou->base.pref_height = dev_priv->initial_height;
 	sou->base.pref_mode = NULL;
 	sou->base.is_implicit = true;
-	drm_connector_init(dev, connector, &vmw_legacy_connector_funcs,
+	drm_connector_init(dev, connector, &vmw_sou_connector_funcs,
 			   DRM_MODE_CONNECTOR_VIRTUAL);
 	connector->status = vmw_du_connector_detect(connector, true);
 );
 	return 0;
 }
-int vmw_kms_init_screen_object_display(struct vmw_private *dev_priv)
+int vmw_kms_sou_init_display(struct vmw_private *dev_priv)
+{
 	struct drm_device *dev = dev_priv->dev;
 		goto err_no_mem;
 	dev_priv->sou_priv->num_implicit = 0;
+	dev_priv->sou_priv->implicit_fb = NULL;
+	ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS);
-	dev_priv->sou_priv->implicit_fb = NULL;
+	if (unlikely(ret != 0))
 		goto err_free;
 	ret = drm_mode_create_dirty_info_property(dev);
 	if (unlikely(ret != 0))
+		goto err_vblank_cleanup;
-		goto err_vblank_cleanup;
+	for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i)
 		vmw_sou_init(dev_priv, i);
 	for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i)
-		vmw_sou_init(dev_priv, i);
+	dev_priv->active_display_unit = vmw_du_screen_object;
-	DRM_INFO("Screen objects system initialized\n");
+	DRM_INFO("Screen Objects Display Unit initialized\n");
 	return 0;
 err_vblank_cleanup:
-//   drm_vblank_cleanup(dev);
+	drm_vblank_cleanup(dev);
 err_free:
 	kfree(dev_priv->sou_priv);
 	dev_priv->sou_priv = NULL;
 err_no_mem:
 	return ret;
+}
-int vmw_kms_close_screen_object_display(struct vmw_private *dev_priv)
+int vmw_kms_sou_close_display(struct vmw_private *dev_priv)
+{
+	struct drm_device *dev = dev_priv->dev;
+	if (!dev_priv->sou_priv)
+		return -ENOSYS;
+	drm_vblank_cleanup(dev);
+	kfree(dev_priv->sou_priv);
+	return 0;
+}
+static int do_dmabuf_define_gmrfb(struct vmw_private *dev_priv,
+				  struct vmw_framebuffer *framebuffer)
+{
+	struct vmw_dma_buffer *buf =
+		container_of(framebuffer, struct vmw_framebuffer_dmabuf,
+			     base)->buffer;
+	int depth = framebuffer->base.depth;
+	struct {
+		uint32_t header;
+		SVGAFifoCmdDefineGMRFB body;
+	} *cmd;
+	/* Emulate RGBA support, contrary to svga_reg.h this is not
+	 * supported by hosts. This is only a problem if we are reading
+	 * this value later and expecting what we uploaded back.
+	 */
+	if (depth == 32)
+		depth = 24;
+	cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
+	if (!cmd) {
+		DRM_ERROR("Out of fifo space for dirty framebuffer command.\n");
+		return -ENOMEM;
+	}
+	cmd->header = SVGA_CMD_DEFINE_GMRFB;
-	struct drm_device *dev = dev_priv->dev;
+	cmd->body.format.bitsPerPixel = framebuffer->base.bits_per_pixel;
+	cmd->body.format.colorDepth = depth;
+	cmd->body.format.reserved = 0;
+	cmd->body.bytesPerLine = framebuffer->base.pitches[0];
+	/* Buffer is reserved in vram or GMR */
+	vmw_bo_get_guest_ptr(&buf->base, &cmd->body.ptr);
-	if (!dev_priv->sou_priv)
+	vmw_fifo_commit(dev_priv, sizeof(*cmd));
-		return -ENOSYS;
-//   drm_vblank_cleanup(dev);
+	return 0;
+}
+/**
+ * vmw_sou_surface_fifo_commit - Callback to fill in and submit a
+ * blit surface to screen command.
+ *
+ * @dirty: The closure structure.
+ *
-	kfree(dev_priv->sou_priv);
+ * Fills in the missing fields in the command, and translates the cliprects
+ * to match the destination bounding box encoded.
+ */
+static void vmw_sou_surface_fifo_commit(struct vmw_kms_dirty *dirty)
+{
+	struct vmw_kms_sou_surface_dirty *sdirty =
+		container_of(dirty, typeof(*sdirty), base);
+	struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd;
+	s32 trans_x = dirty->unit->crtc.x - sdirty->dst_x;
+	s32 trans_y = dirty->unit->crtc.y - sdirty->dst_y;
+	size_t region_size = dirty->num_hits * sizeof(SVGASignedRect);
+	SVGASignedRect *blit = (SVGASignedRect *) &cmd[1];
+	int i;
+	cmd->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN;
+	cmd->header.size = sizeof(cmd->body) + region_size;
+	/*
+	 * Use the destination bounding box to specify destination - and
+	 * source bounding regions.
-	return 0;
+	 */
+	cmd->body.destRect.left = sdirty->left;
-}
+	cmd->body.destRect.right = sdirty->right;
+	cmd->body.destRect.top = sdirty->top;
+	cmd->body.destRect.bottom = sdirty->bottom;
+	cmd->body.srcRect.left = sdirty->left + trans_x;
+	cmd->body.srcRect.right = sdirty->right + trans_x;
+	cmd->body.srcRect.top = sdirty->top + trans_y;
+	cmd->body.srcRect.bottom = sdirty->bottom + trans_y;
 /**
- * Returns if this unit can be page flipped.
+	cmd->body.srcImage.sid = sdirty->sid;
- * Must be called with the mode_config mutex held.
+	cmd->body.destScreenId = dirty->unit->unit;
+	/* Blits are relative to the destination rect. Translate. */
+	for (i = 0; i < dirty->num_hits; ++i, ++blit) {
- */
+		blit->left -= sdirty->left;
+		blit->right -= sdirty->left;
-bool vmw_kms_screen_object_flippable(struct vmw_private *dev_priv,
+		blit->top -= sdirty->top;
-				     struct drm_crtc *crtc)
+		blit->bottom -= sdirty->top;
-{
 	struct vmw_screen_object_unit *sou = vmw_crtc_to_sou(crtc);
+	vmw_fifo_commit(dirty->dev_priv, region_size + sizeof(*cmd));
+	sdirty->left = sdirty->top = S32_MAX;
+	sdirty->right = sdirty->bottom = S32_MIN;
+}
+/**
+ * vmw_sou_surface_clip - Callback to encode a blit surface to screen cliprect.
+ *
+ * @dirty: The closure structure
+ *
+ * Encodes a SVGASignedRect cliprect and updates the bounding box of the
+ * BLIT_SURFACE_TO_SCREEN command.
+ */
+static void vmw_sou_surface_clip(struct vmw_kms_dirty *dirty)
+{
-	if (!sou->base.is_implicit)
+	struct vmw_kms_sou_surface_dirty *sdirty =
+		container_of(dirty, typeof(*sdirty), base);
+	struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd;
+	SVGASignedRect *blit = (SVGASignedRect *) &cmd[1];
+	/* Destination rect. */
+	blit += dirty->num_hits;
+	blit->left = dirty->unit_x1;
+	blit->top = dirty->unit_y1;
+	blit->right = dirty->unit_x2;
+	blit->bottom = dirty->unit_y2;
+	/* Destination bounding box */
+	sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1);
+	sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1);
+	sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2);
+	sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2);
+	dirty->num_hits++;
+}
+/**
+ * vmw_kms_sou_do_surface_dirty - Dirty part of a surface backed framebuffer
+ *
+ * @dev_priv: Pointer to the device private structure.
+ * @framebuffer: Pointer to the surface-buffer backed framebuffer.
+ * @clips: Array of clip rects. Either @clips or @vclips must be NULL.
+ * @vclips: Alternate array of clip rects. Either @clips or @vclips must
+ * be NULL.
+ * @srf: Pointer to surface to blit from. If NULL, the surface attached
+ * to @framebuffer will be used.
+ * @dest_x: X coordinate offset to align @srf with framebuffer coordinates.
+ * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates.
+ * @num_clips: Number of clip rects in @clips.
+ * @inc: Increment to use when looping over @clips.
+ * @out_fence: If non-NULL, will return a ref-counted pointer to a
+ * struct vmw_fence_obj. The returned fence pointer may be NULL in which
+ * case the device has already synchronized.
+ *
+ * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
+ * interrupted.
+ */
+int vmw_kms_sou_do_surface_dirty(struct vmw_private *dev_priv,
+				 struct vmw_framebuffer *framebuffer,
+				 struct drm_clip_rect *clips,
+				 struct drm_vmw_rect *vclips,
+				 struct vmw_resource *srf,
-		return true;
+				 s32 dest_x,
+				 s32 dest_y,
+				 unsigned num_clips, int inc,
+				 struct vmw_fence_obj **out_fence)
+{
+	struct vmw_framebuffer_surface *vfbs =
+		container_of(framebuffer, typeof(*vfbs), base);
+	struct vmw_kms_sou_surface_dirty sdirty;
+	int ret;
+	if (!srf)
+		srf = &vfbs->surface->res;
+	ret = vmw_kms_helper_resource_prepare(srf, true);
+	if (ret)
+		return ret;
 	if (dev_priv->sou_priv->num_implicit != 1)
+	sdirty.base.fifo_commit = vmw_sou_surface_fifo_commit;
+	sdirty.base.clip = vmw_sou_surface_clip;
+	sdirty.base.dev_priv = dev_priv;
+	sdirty.base.fifo_reserve_size = sizeof(struct vmw_kms_sou_dirty_cmd) +
+	  sizeof(SVGASignedRect) * num_clips;
+	sdirty.sid = srf->id;
+	sdirty.left = sdirty.top = S32_MAX;
+	sdirty.right = sdirty.bottom = S32_MIN;
+	sdirty.dst_x = dest_x;
+	sdirty.dst_y = dest_y;
-		return false;
+	ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
+				   dest_x, dest_y, num_clips, inc,
+				   &sdirty.base);
+	vmw_kms_helper_resource_finish(srf, out_fence);
+	return ret;
+}
+/**
-	return true;
+ * vmw_sou_dmabuf_fifo_commit - Callback to submit a set of readback clips.
+ *
+ * @dirty: The closure structure.
+ *
+ * Commits a previously built command buffer of readback clips.
+ */
+static void vmw_sou_dmabuf_fifo_commit(struct vmw_kms_dirty *dirty)
+{
+	vmw_fifo_commit(dirty->dev_priv,
+			sizeof(struct vmw_kms_sou_dmabuf_blit) *
+			dirty->num_hits);
+}
+/**
+ * vmw_sou_dmabuf_clip - Callback to encode a readback cliprect.
+ *
+ * @dirty: The closure structure
+ *
+ * Encodes a BLIT_GMRFB_TO_SCREEN cliprect.
+ */
+static void vmw_sou_dmabuf_clip(struct vmw_kms_dirty *dirty)
+{
+	struct vmw_kms_sou_dmabuf_blit *blit = dirty->cmd;
+	blit += dirty->num_hits;
+	blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
+	blit->body.destScreenId = dirty->unit->unit;
+	blit->body.srcOrigin.x = dirty->fb_x;
+	blit->body.srcOrigin.y = dirty->fb_y;
+	blit->body.destRect.left = dirty->unit_x1;
+	blit->body.destRect.top = dirty->unit_y1;
+	blit->body.destRect.right = dirty->unit_x2;
+	blit->body.destRect.bottom = dirty->unit_y2;
+	dirty->num_hits++;
+}
+/**
+ * vmw_kms_do_dmabuf_dirty - Dirty part of a dma-buffer backed framebuffer
+ *
+ * @dev_priv: Pointer to the device private structure.
-}
+ * @framebuffer: Pointer to the dma-buffer backed framebuffer.
+ * @clips: Array of clip rects.
+ * @num_clips: Number of clip rects in @clips.
+ * @increment: Increment to use when looping over @clips.
+ * @interruptible: Whether to perform waits interruptible if possible.
+ * @out_fence: If non-NULL, will return a ref-counted pointer to a
+ * struct vmw_fence_obj. The returned fence pointer may be NULL in which
+ * case the device has already synchronized.
+ *
+ * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
-/**
+ * interrupted.
+ */
+int vmw_kms_sou_do_dmabuf_dirty(struct vmw_private *dev_priv,
+				struct vmw_framebuffer *framebuffer,
+				struct drm_clip_rect *clips,
+				unsigned num_clips, int increment,
+				bool interruptible,
+				struct vmw_fence_obj **out_fence)
+{
+	struct vmw_dma_buffer *buf =
+		container_of(framebuffer, struct vmw_framebuffer_dmabuf,
+			     base)->buffer;
+	struct vmw_kms_dirty dirty;
+	int ret;
- * Update the implicit fb to the current fb of this crtc.
+	ret = vmw_kms_helper_buffer_prepare(dev_priv, buf, interruptible,
+					    false);
- * Must be called with the mode_config mutex held.
- */
-void vmw_kms_screen_object_update_implicit_fb(struct vmw_private *dev_priv,
+	if (ret)
+		return ret;
+	ret = do_dmabuf_define_gmrfb(dev_priv, framebuffer);
+	if (unlikely(ret != 0))
+		goto out_revert;
+	dirty.fifo_commit = vmw_sou_dmabuf_fifo_commit;
+	dirty.clip = vmw_sou_dmabuf_clip;
+	dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_dmabuf_blit) *
+		num_clips;
+	ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, NULL,
+, 0, num_clips, increment, &dirty);
+	vmw_kms_helper_buffer_finish(dev_priv, NULL, buf, out_fence, NULL);
+	return ret;
-					      struct drm_crtc *crtc)
+out_revert:
+	vmw_kms_helper_buffer_revert(buf);
+	return ret;
+}
-	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.primary->fb);
-}
+/**
+ * vmw_sou_readback_fifo_commit - Callback to submit a set of readback clips.
+ *
+ * @dirty: The closure structure.
+ *
+ * Commits a previously built command buffer of readback clips.
+ */
+static void vmw_sou_readback_fifo_commit(struct vmw_kms_dirty *dirty)
+{
+	vmw_fifo_commit(dirty->dev_priv,
+			sizeof(struct vmw_kms_sou_readback_blit) *
+			dirty->num_hits);
+}
+/**
+ * vmw_sou_readback_clip - Callback to encode a readback cliprect.
+ *
+ * @dirty: The closure structure
+ *
+ * Encodes a BLIT_SCREEN_TO_GMRFB cliprect.
+ */
+static void vmw_sou_readback_clip(struct vmw_kms_dirty *dirty)
+{
+	struct vmw_kms_sou_readback_blit *blit = dirty->cmd;
-#include "bitmap.h"
+	blit += dirty->num_hits;
+	blit->header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB;
+	blit->body.srcScreenId = dirty->unit->unit;
+	blit->body.destOrigin.x = dirty->fb_x;
+	blit->body.destOrigin.y = dirty->fb_y;
+	blit->body.srcRect.left = dirty->unit_x1;
-typedef struct
+	blit->body.srcRect.top = dirty->unit_y1;
+	blit->body.srcRect.right = dirty->unit_x2;
+	blit->body.srcRect.bottom = dirty->unit_y2;
+	dirty->num_hits++;
+}
-{
+/**
-    kobj_t     header;
+ * vmw_kms_sou_readback - Perform a readback from the screen object system to
+ * a dma-buffer backed framebuffer.
+ *
+ * @dev_priv: Pointer to the device private structure.
+ * @file_priv: Pointer to a struct drm_file identifying the caller.
-    uint32_t  *data;
+ * Must be set to NULL if @user_fence_rep is NULL.
+ * @vfb: Pointer to the dma-buffer backed framebuffer.
-    uint32_t   hot_x;
+ * @user_fence_rep: User-space provided structure for fence information.
-    uint32_t   hot_y;
+ * Must be set to non-NULL if @file_priv is non-NULL.
+ * @vclips: Array of clip rects.
+ * @num_clips: Number of clip rects in @vclips.
-    struct list_head   list;
+ *
-//    struct drm_i915_gem_object  *cobj;
+ * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
-}cursor_t;
+ * interrupted.
+ */
+int vmw_kms_sou_readback(struct vmw_private *dev_priv,
+			 struct drm_file *file_priv,
+			 struct vmw_framebuffer *vfb,
-struct tag_display
+			 struct drm_vmw_fence_rep __user *user_fence_rep,
-{
+			 struct drm_vmw_rect *vclips,
+			 uint32_t num_clips)
+{
-    int  x;
+	struct vmw_dma_buffer *buf =
+		container_of(vfb, struct vmw_framebuffer_dmabuf, base)->buffer;
+	struct vmw_kms_dirty dirty;
+	int ret;
-    int  y;
+	ret = vmw_kms_helper_buffer_prepare(dev_priv, buf, true, false);
-    int  width;
+	if (ret)
-    int  height;
+		return ret;
     int  bpp;
                        os_display->width, os_display->height, crtc);
+    }
     return ret;
+};

Subversion Repositories Kolibri OS

(root)/drivers/video/drm/vmwgfx/vmwgfx_scrn.c – Rev 5078 → 6296