Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 268 insertions, 0 deletions

diff --git a/drivers/gpu/drm/qxl/qxl_draw.c b/drivers/gpu/drm/qxl/qxl_draw.c
new file mode 100644
index 000000000..3a3e127ce
--- /dev/null
+++ b/drivers/gpu/drm/qxl/qxl_draw.c
@@ -0,0 +1,268 @@
+/*
+ * Copyright 2011 Red Hat, Inc.
+ *
+ * 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 without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/iosys-map.h>
+
+#include <drm/drm_fourcc.h>
+#include <drm/drm_framebuffer.h>
+
+#include "qxl_drv.h"
+#include "qxl_object.h"
+
+static int alloc_clips(struct qxl_device *qdev,
+		       struct qxl_release *release,
+		       unsigned int num_clips,
+		       struct qxl_bo **clips_bo)
+{
+	int size = sizeof(struct qxl_clip_rects) + sizeof(struct qxl_rect) * num_clips;
+
+	return qxl_alloc_bo_reserved(qdev, release, size, clips_bo);
+}
+
+/* returns a pointer to the already allocated qxl_rect array inside
+ * the qxl_clip_rects. This is *not* the same as the memory allocated
+ * on the device, it is offset to qxl_clip_rects.chunk.data */
+static struct qxl_rect *drawable_set_clipping(struct qxl_device *qdev,
+					      unsigned int num_clips,
+					      struct qxl_bo *clips_bo)
+{
+	struct iosys_map map;
+	struct qxl_clip_rects *dev_clips;
+	int ret;
+
+	ret = qxl_bo_vmap_locked(clips_bo, &map);
+	if (ret)
+		return NULL;
+	dev_clips = map.vaddr; /* TODO: Use mapping abstraction properly */
+
+	dev_clips->num_rects = num_clips;
+	dev_clips->chunk.next_chunk = 0;
+	dev_clips->chunk.prev_chunk = 0;
+	dev_clips->chunk.data_size = sizeof(struct qxl_rect) * num_clips;
+	return (struct qxl_rect *)dev_clips->chunk.data;
+}
+
+static int
+alloc_drawable(struct qxl_device *qdev, struct qxl_release **release)
+{
+	return qxl_alloc_release_reserved(qdev, sizeof(struct qxl_drawable),
+					  QXL_RELEASE_DRAWABLE, release, NULL);
+}
+
+static void
+free_drawable(struct qxl_device *qdev, struct qxl_release *release)
+{
+	qxl_release_free(qdev, release);
+}
+
+/* release needs to be reserved at this point */
+static int
+make_drawable(struct qxl_device *qdev, int surface, uint8_t type,
+	      const struct qxl_rect *rect,
+	      struct qxl_release *release)
+{
+	struct qxl_drawable *drawable;
+	int i;
+
+	drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
+	if (!drawable)
+		return -ENOMEM;
+
+	drawable->type = type;
+
+	drawable->surface_id = surface;		/* Only primary for now */
+	drawable->effect = QXL_EFFECT_OPAQUE;
+	drawable->self_bitmap = 0;
+	drawable->self_bitmap_area.top = 0;
+	drawable->self_bitmap_area.left = 0;
+	drawable->self_bitmap_area.bottom = 0;
+	drawable->self_bitmap_area.right = 0;
+	/* FIXME: add clipping */
+	drawable->clip.type = SPICE_CLIP_TYPE_NONE;
+
+	/*
+	 * surfaces_dest[i] should apparently be filled out with the
+	 * surfaces that we depend on, and surface_rects should be
+	 * filled with the rectangles of those surfaces that we
+	 * are going to use.
+	 */
+	for (i = 0; i < 3; ++i)
+		drawable->surfaces_dest[i] = -1;
+
+	if (rect)
+		drawable->bbox = *rect;
+
+	drawable->mm_time = qdev->rom->mm_clock;
+	qxl_release_unmap(qdev, release, &drawable->release_info);
+	return 0;
+}
+
+/* push a draw command using the given clipping rectangles as
+ * the sources from the shadow framebuffer.
+ *
+ * Right now implementing with a single draw and a clip list. Clip
+ * lists are known to be a problem performance wise, this can be solved
+ * by treating them differently in the server.
+ */
+void qxl_draw_dirty_fb(struct qxl_device *qdev,
+		       struct drm_framebuffer *fb,
+		       struct qxl_bo *bo,
+		       unsigned int flags, unsigned int color,
+		       struct drm_clip_rect *clips,
+		       unsigned int num_clips, int inc,
+		       uint32_t dumb_shadow_offset)
+{
+	/*
+	 * TODO: if flags & DRM_MODE_FB_DIRTY_ANNOTATE_FILL then we should
+	 * send a fill command instead, much cheaper.
+	 *
+	 * See include/drm/drm_mode.h
+	 */
+	struct drm_clip_rect *clips_ptr;
+	int i;
+	int left, right, top, bottom;
+	int width, height;
+	struct qxl_drawable *drawable;
+	struct qxl_rect drawable_rect;
+	struct qxl_rect *rects;
+	int stride = fb->pitches[0];
+	/* depth is not actually interesting, we don't mask with it */
+	int depth = fb->format->cpp[0] * 8;
+	struct iosys_map surface_map;
+	uint8_t *surface_base;
+	struct qxl_release *release;
+	struct qxl_bo *clips_bo;
+	struct qxl_drm_image *dimage;
+	int ret;
+
+	ret = alloc_drawable(qdev, &release);
+	if (ret)
+		return;
+
+	clips->x1 += dumb_shadow_offset;
+	clips->x2 += dumb_shadow_offset;
+
+	left = clips->x1;
+	right = clips->x2;
+	top = clips->y1;
+	bottom = clips->y2;
+
+	/* skip the first clip rect */
+	for (i = 1, clips_ptr = clips + inc;
+	     i < num_clips; i++, clips_ptr += inc) {
+		left = min_t(int, left, (int)clips_ptr->x1);
+		right = max_t(int, right, (int)clips_ptr->x2);
+		top = min_t(int, top, (int)clips_ptr->y1);
+		bottom = max_t(int, bottom, (int)clips_ptr->y2);
+	}
+
+	width = right - left;
+	height = bottom - top;
+
+	ret = alloc_clips(qdev, release, num_clips, &clips_bo);
+	if (ret)
+		goto out_free_drawable;
+
+	ret = qxl_image_alloc_objects(qdev, release,
+				      &dimage,
+				      height, stride);
+	if (ret)
+		goto out_free_clips;
+
+	/* do a reservation run over all the objects we just allocated */
+	ret = qxl_release_reserve_list(release, true);
+	if (ret)
+		goto out_free_image;
+
+	drawable_rect.left = left;
+	drawable_rect.right = right;
+	drawable_rect.top = top;
+	drawable_rect.bottom = bottom;
+
+	ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &drawable_rect,
+			    release);
+	if (ret)
+		goto out_release_backoff;
+
+	ret = qxl_bo_vmap_locked(bo, &surface_map);
+	if (ret)
+		goto out_release_backoff;
+	surface_base = surface_map.vaddr; /* TODO: Use mapping abstraction properly */
+
+	ret = qxl_image_init(qdev, release, dimage, surface_base,
+			     left - dumb_shadow_offset,
+			     top, width, height, depth, stride);
+	qxl_bo_vunmap_locked(bo);
+	if (ret)
+		goto out_release_backoff;
+
+	rects = drawable_set_clipping(qdev, num_clips, clips_bo);
+	if (!rects) {
+		ret = -EINVAL;
+		goto out_release_backoff;
+	}
+	drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
+
+	drawable->clip.type = SPICE_CLIP_TYPE_RECTS;
+	drawable->clip.data = qxl_bo_physical_address(qdev,
+						      clips_bo, 0);
+
+	drawable->u.copy.src_area.top = 0;
+	drawable->u.copy.src_area.bottom = height;
+	drawable->u.copy.src_area.left = 0;
+	drawable->u.copy.src_area.right = width;
+
+	drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT;
+	drawable->u.copy.scale_mode = 0;
+	drawable->u.copy.mask.flags = 0;
+	drawable->u.copy.mask.pos.x = 0;
+	drawable->u.copy.mask.pos.y = 0;
+	drawable->u.copy.mask.bitmap = 0;
+
+	drawable->u.copy.src_bitmap = qxl_bo_physical_address(qdev, dimage->bo, 0);
+	qxl_release_unmap(qdev, release, &drawable->release_info);
+
+	clips_ptr = clips;
+	for (i = 0; i < num_clips; i++, clips_ptr += inc) {
+		rects[i].left   = clips_ptr->x1;
+		rects[i].right  = clips_ptr->x2;
+		rects[i].top    = clips_ptr->y1;
+		rects[i].bottom = clips_ptr->y2;
+	}
+	qxl_bo_vunmap_locked(clips_bo);
+
+	qxl_release_fence_buffer_objects(release);
+	qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
+
+out_release_backoff:
+	if (ret)
+		qxl_release_backoff_reserve_list(release);
+out_free_image:
+	qxl_image_free_objects(qdev, dimage);
+out_free_clips:
+	qxl_bo_unref(&clips_bo);
+out_free_drawable:
+	/* only free drawable on error */
+	if (ret)
+		free_drawable(qdev, release);
+
+}