Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / drivers / gpu / drm / qxl / qxl_draw.c
diff --git a/kernel/drivers/gpu/drm/qxl/qxl_draw.c b/kernel/drivers/gpu/drm/qxl/qxl_draw.c
new file mode 100644 (file)
index 0000000..56e1d63
--- /dev/null
@@ -0,0 +1,487 @@
+/*
+ * 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 "qxl_drv.h"
+#include "qxl_object.h"
+
+static int alloc_clips(struct qxl_device *qdev,
+                      struct qxl_release *release,
+                      unsigned 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,
+                                             struct qxl_drawable *drawable,
+                                             unsigned num_clips,
+                                             struct qxl_bo *clips_bo)
+{
+       struct qxl_clip_rects *dev_clips;
+       int ret;
+
+       ret = qxl_bo_kmap(clips_bo, (void **)&dev_clips);
+       if (ret) {
+               return NULL;
+       }
+       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)
+{
+       int ret;
+       ret = qxl_alloc_release_reserved(qdev, sizeof(struct qxl_drawable),
+                                        QXL_RELEASE_DRAWABLE, release,
+                                        NULL);
+       return ret;
+}
+
+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;
+}
+
+static int alloc_palette_object(struct qxl_device *qdev,
+                               struct qxl_release *release,
+                               struct qxl_bo **palette_bo)
+{
+       return qxl_alloc_bo_reserved(qdev, release,
+                                    sizeof(struct qxl_palette) + sizeof(uint32_t) * 2,
+                                    palette_bo);
+}
+
+static int qxl_palette_create_1bit(struct qxl_bo *palette_bo,
+                                  struct qxl_release *release,
+                                  const struct qxl_fb_image *qxl_fb_image)
+{
+       const struct fb_image *fb_image = &qxl_fb_image->fb_image;
+       uint32_t visual = qxl_fb_image->visual;
+       const uint32_t *pseudo_palette = qxl_fb_image->pseudo_palette;
+       struct qxl_palette *pal;
+       int ret;
+       uint32_t fgcolor, bgcolor;
+       static uint64_t unique; /* we make no attempt to actually set this
+                                * correctly globaly, since that would require
+                                * tracking all of our palettes. */
+       ret = qxl_bo_kmap(palette_bo, (void **)&pal);
+       pal->num_ents = 2;
+       pal->unique = unique++;
+       if (visual == FB_VISUAL_TRUECOLOR || visual == FB_VISUAL_DIRECTCOLOR) {
+               /* NB: this is the only used branch currently. */
+               fgcolor = pseudo_palette[fb_image->fg_color];
+               bgcolor = pseudo_palette[fb_image->bg_color];
+       } else {
+               fgcolor = fb_image->fg_color;
+               bgcolor = fb_image->bg_color;
+       }
+       pal->ents[0] = bgcolor;
+       pal->ents[1] = fgcolor;
+       qxl_bo_kunmap(palette_bo);
+       return 0;
+}
+
+void qxl_draw_opaque_fb(const struct qxl_fb_image *qxl_fb_image,
+                       int stride /* filled in if 0 */)
+{
+       struct qxl_device *qdev = qxl_fb_image->qdev;
+       struct qxl_drawable *drawable;
+       struct qxl_rect rect;
+       const struct fb_image *fb_image = &qxl_fb_image->fb_image;
+       int x = fb_image->dx;
+       int y = fb_image->dy;
+       int width = fb_image->width;
+       int height = fb_image->height;
+       const char *src = fb_image->data;
+       int depth = fb_image->depth;
+       struct qxl_release *release;
+       struct qxl_image *image;
+       int ret;
+       struct qxl_drm_image *dimage;
+       struct qxl_bo *palette_bo = NULL;
+       if (stride == 0)
+               stride = depth * width / 8;
+
+       ret = alloc_drawable(qdev, &release);
+       if (ret)
+               return;
+
+       ret = qxl_image_alloc_objects(qdev, release,
+                                     &dimage,
+                                     height, stride);
+       if (ret)
+               goto out_free_drawable;
+
+       if (depth == 1) {
+               ret = alloc_palette_object(qdev, release, &palette_bo);
+               if (ret)
+                       goto out_free_image;
+       }
+
+       /* do a reservation run over all the objects we just allocated */
+       ret = qxl_release_reserve_list(release, true);
+       if (ret)
+               goto out_free_palette;
+
+       rect.left = x;
+       rect.right = x + width;
+       rect.top = y;
+       rect.bottom = y + height;
+
+       ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &rect, release);
+       if (ret) {
+               qxl_release_backoff_reserve_list(release);
+               goto out_free_palette;
+       }
+
+       ret = qxl_image_init(qdev, release, dimage,
+                            (const uint8_t *)src, 0, 0,
+                            width, height, depth, stride);
+       if (ret) {
+               qxl_release_backoff_reserve_list(release);
+               qxl_release_free(qdev, release);
+               return;
+       }
+
+       if (depth == 1) {
+               void *ptr;
+               ret = qxl_palette_create_1bit(palette_bo, release, qxl_fb_image);
+
+               ptr = qxl_bo_kmap_atomic_page(qdev, dimage->bo, 0);
+               image = ptr;
+               image->u.bitmap.palette =
+                       qxl_bo_physical_address(qdev, palette_bo, 0);
+               qxl_bo_kunmap_atomic_page(qdev, dimage->bo, ptr);
+       }
+
+       drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
+
+       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);
+
+       qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
+       qxl_release_fence_buffer_objects(release);
+
+out_free_palette:
+       if (palette_bo)
+               qxl_bo_unref(&palette_bo);
+out_free_image:
+       qxl_image_free_objects(qdev, dimage);
+out_free_drawable:
+       if (ret)
+               free_drawable(qdev, release);
+}
+
+/* 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 qxl_framebuffer *qxl_fb,
+                      struct qxl_bo *bo,
+                      unsigned flags, unsigned color,
+                      struct drm_clip_rect *clips,
+                      unsigned num_clips, int inc)
+{
+       /*
+        * 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 = qxl_fb->base.pitches[0];
+       /* depth is not actually interesting, we don't mask with it */
+       int depth = qxl_fb->base.bits_per_pixel;
+       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;
+
+       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_kmap(bo, (void **)&surface_base);
+       if (ret)
+               goto out_release_backoff;
+
+
+       ret = qxl_image_init(qdev, release, dimage, surface_base,
+                            left, top, width, height, depth, stride);
+       qxl_bo_kunmap(bo);
+       if (ret)
+               goto out_release_backoff;
+
+       rects = drawable_set_clipping(qdev, drawable, num_clips, clips_bo);
+       if (!rects)
+               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_kunmap(clips_bo);
+
+       qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
+       qxl_release_fence_buffer_objects(release);
+
+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);
+
+}
+
+void qxl_draw_copyarea(struct qxl_device *qdev,
+                      u32 width, u32 height,
+                      u32 sx, u32 sy,
+                      u32 dx, u32 dy)
+{
+       struct qxl_drawable *drawable;
+       struct qxl_rect rect;
+       struct qxl_release *release;
+       int ret;
+
+       ret = alloc_drawable(qdev, &release);
+       if (ret)
+               return;
+
+       /* do a reservation run over all the objects we just allocated */
+       ret = qxl_release_reserve_list(release, true);
+       if (ret)
+               goto out_free_release;
+
+       rect.left = dx;
+       rect.top = dy;
+       rect.right = dx + width;
+       rect.bottom = dy + height;
+       ret = make_drawable(qdev, 0, QXL_COPY_BITS, &rect, release);
+       if (ret) {
+               qxl_release_backoff_reserve_list(release);
+               goto out_free_release;
+       }
+
+       drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
+       drawable->u.copy_bits.src_pos.x = sx;
+       drawable->u.copy_bits.src_pos.y = sy;
+       qxl_release_unmap(qdev, release, &drawable->release_info);
+
+       qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
+       qxl_release_fence_buffer_objects(release);
+
+out_free_release:
+       if (ret)
+               free_drawable(qdev, release);
+}
+
+void qxl_draw_fill(struct qxl_draw_fill *qxl_draw_fill_rec)
+{
+       struct qxl_device *qdev = qxl_draw_fill_rec->qdev;
+       struct qxl_rect rect = qxl_draw_fill_rec->rect;
+       uint32_t color = qxl_draw_fill_rec->color;
+       uint16_t rop = qxl_draw_fill_rec->rop;
+       struct qxl_drawable *drawable;
+       struct qxl_release *release;
+       int ret;
+
+       ret = alloc_drawable(qdev, &release);
+       if (ret)
+               return;
+
+       /* do a reservation run over all the objects we just allocated */
+       ret = qxl_release_reserve_list(release, true);
+       if (ret)
+               goto out_free_release;
+
+       ret = make_drawable(qdev, 0, QXL_DRAW_FILL, &rect, release);
+       if (ret) {
+               qxl_release_backoff_reserve_list(release);
+               goto out_free_release;
+       }
+
+       drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
+       drawable->u.fill.brush.type = SPICE_BRUSH_TYPE_SOLID;
+       drawable->u.fill.brush.u.color = color;
+       drawable->u.fill.rop_descriptor = rop;
+       drawable->u.fill.mask.flags = 0;
+       drawable->u.fill.mask.pos.x = 0;
+       drawable->u.fill.mask.pos.y = 0;
+       drawable->u.fill.mask.bitmap = 0;
+
+       qxl_release_unmap(qdev, release, &drawable->release_info);
+
+       qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
+       qxl_release_fence_buffer_objects(release);
+
+out_free_release:
+       if (ret)
+               free_drawable(qdev, release);
+}