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path: root/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
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Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_kms.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_kms.c880
1 files changed, 880 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
new file mode 100644
index 00000000000..eeba6d1d06e
--- /dev/null
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -0,0 +1,880 @@
+/**************************************************************************
+ *
+ * Copyright © 2009 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
+ * without limitation 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 COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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 "vmwgfx_kms.h"
+
+/* Might need a hrtimer here? */
+#define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
+
+
+void vmw_display_unit_cleanup(struct vmw_display_unit *du)
+{
+ if (du->cursor_surface)
+ vmw_surface_unreference(&du->cursor_surface);
+ if (du->cursor_dmabuf)
+ vmw_dmabuf_unreference(&du->cursor_dmabuf);
+ drm_crtc_cleanup(&du->crtc);
+ drm_encoder_cleanup(&du->encoder);
+ drm_connector_cleanup(&du->connector);
+}
+
+/*
+ * Display Unit Cursor functions
+ */
+
+int vmw_cursor_update_image(struct vmw_private *dev_priv,
+ u32 *image, u32 width, u32 height,
+ u32 hotspotX, u32 hotspotY)
+{
+ struct {
+ u32 cmd;
+ SVGAFifoCmdDefineAlphaCursor cursor;
+ } *cmd;
+ u32 image_size = width * height * 4;
+ u32 cmd_size = sizeof(*cmd) + image_size;
+
+ if (!image)
+ return -EINVAL;
+
+ cmd = vmw_fifo_reserve(dev_priv, cmd_size);
+ if (unlikely(cmd == NULL)) {
+ DRM_ERROR("Fifo reserve failed.\n");
+ return -ENOMEM;
+ }
+
+ memset(cmd, 0, sizeof(*cmd));
+
+ memcpy(&cmd[1], image, image_size);
+
+ cmd->cmd = cpu_to_le32(SVGA_CMD_DEFINE_ALPHA_CURSOR);
+ cmd->cursor.id = cpu_to_le32(0);
+ cmd->cursor.width = cpu_to_le32(width);
+ cmd->cursor.height = cpu_to_le32(height);
+ cmd->cursor.hotspotX = cpu_to_le32(hotspotX);
+ cmd->cursor.hotspotY = cpu_to_le32(hotspotY);
+
+ vmw_fifo_commit(dev_priv, cmd_size);
+
+ return 0;
+}
+
+void vmw_cursor_update_position(struct vmw_private *dev_priv,
+ bool show, int x, int y)
+{
+ __le32 __iomem *fifo_mem = dev_priv->mmio_virt;
+ uint32_t count;
+
+ iowrite32(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON);
+ iowrite32(x, fifo_mem + SVGA_FIFO_CURSOR_X);
+ iowrite32(y, fifo_mem + SVGA_FIFO_CURSOR_Y);
+ count = ioread32(fifo_mem + SVGA_FIFO_CURSOR_COUNT);
+ iowrite32(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT);
+}
+
+int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
+ uint32_t handle, uint32_t width, uint32_t height)
+{
+ struct vmw_private *dev_priv = vmw_priv(crtc->dev);
+ struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
+ struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
+ struct vmw_surface *surface = NULL;
+ struct vmw_dma_buffer *dmabuf = NULL;
+ int ret;
+
+ if (handle) {
+ ret = vmw_user_surface_lookup_handle(dev_priv, tfile,
+ handle, &surface);
+ if (!ret) {
+ if (!surface->snooper.image) {
+ DRM_ERROR("surface not suitable for cursor\n");
+ return -EINVAL;
+ }
+ } else {
+ ret = vmw_user_dmabuf_lookup(tfile,
+ handle, &dmabuf);
+ if (ret) {
+ DRM_ERROR("failed to find surface or dmabuf: %i\n", ret);
+ return -EINVAL;
+ }
+ }
+ }
+
+ /* takedown old cursor */
+ if (du->cursor_surface) {
+ du->cursor_surface->snooper.crtc = NULL;
+ vmw_surface_unreference(&du->cursor_surface);
+ }
+ if (du->cursor_dmabuf)
+ vmw_dmabuf_unreference(&du->cursor_dmabuf);
+
+ /* setup new image */
+ if (surface) {
+ /* vmw_user_surface_lookup takes one reference */
+ du->cursor_surface = surface;
+
+ du->cursor_surface->snooper.crtc = crtc;
+ du->cursor_age = du->cursor_surface->snooper.age;
+ vmw_cursor_update_image(dev_priv, surface->snooper.image,
+ 64, 64, du->hotspot_x, du->hotspot_y);
+ } else if (dmabuf) {
+ struct ttm_bo_kmap_obj map;
+ unsigned long kmap_offset;
+ unsigned long kmap_num;
+ void *virtual;
+ bool dummy;
+
+ /* vmw_user_surface_lookup takes one reference */
+ du->cursor_dmabuf = dmabuf;
+
+ kmap_offset = 0;
+ kmap_num = (64*64*4) >> PAGE_SHIFT;
+
+ ret = ttm_bo_reserve(&dmabuf->base, true, false, false, 0);
+ if (unlikely(ret != 0)) {
+ DRM_ERROR("reserve failed\n");
+ return -EINVAL;
+ }
+
+ ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map);
+ if (unlikely(ret != 0))
+ goto err_unreserve;
+
+ virtual = ttm_kmap_obj_virtual(&map, &dummy);
+ vmw_cursor_update_image(dev_priv, virtual, 64, 64,
+ du->hotspot_x, du->hotspot_y);
+
+ ttm_bo_kunmap(&map);
+err_unreserve:
+ ttm_bo_unreserve(&dmabuf->base);
+
+ } else {
+ vmw_cursor_update_position(dev_priv, false, 0, 0);
+ return 0;
+ }
+
+ vmw_cursor_update_position(dev_priv, true, du->cursor_x, du->cursor_y);
+
+ return 0;
+}
+
+int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
+{
+ struct vmw_private *dev_priv = vmw_priv(crtc->dev);
+ struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
+ bool shown = du->cursor_surface || du->cursor_dmabuf ? true : false;
+
+ du->cursor_x = x + crtc->x;
+ du->cursor_y = y + crtc->y;
+
+ vmw_cursor_update_position(dev_priv, shown,
+ du->cursor_x, du->cursor_y);
+
+ return 0;
+}
+
+void vmw_kms_cursor_snoop(struct vmw_surface *srf,
+ struct ttm_object_file *tfile,
+ struct ttm_buffer_object *bo,
+ SVGA3dCmdHeader *header)
+{
+ struct ttm_bo_kmap_obj map;
+ unsigned long kmap_offset;
+ unsigned long kmap_num;
+ SVGA3dCopyBox *box;
+ unsigned box_count;
+ void *virtual;
+ bool dummy;
+ struct vmw_dma_cmd {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdSurfaceDMA dma;
+ } *cmd;
+ int ret;
+
+ cmd = container_of(header, struct vmw_dma_cmd, header);
+
+ /* No snooper installed */
+ if (!srf->snooper.image)
+ return;
+
+ if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
+ DRM_ERROR("face and mipmap for cursors should never != 0\n");
+ return;
+ }
+
+ if (cmd->header.size < 64) {
+ DRM_ERROR("at least one full copy box must be given\n");
+ return;
+ }
+
+ box = (SVGA3dCopyBox *)&cmd[1];
+ box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
+ sizeof(SVGA3dCopyBox);
+
+ if (cmd->dma.guest.pitch != (64 * 4) ||
+ cmd->dma.guest.ptr.offset % PAGE_SIZE ||
+ box->x != 0 || box->y != 0 || box->z != 0 ||
+ box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
+ box->w != 64 || box->h != 64 || box->d != 1 ||
+ box_count != 1) {
+ /* TODO handle none page aligned offsets */
+ /* TODO handle partial uploads and pitch != 256 */
+ /* TODO handle more then one copy (size != 64) */
+ DRM_ERROR("lazy programer, cant handle wierd stuff\n");
+ return;
+ }
+
+ kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
+ kmap_num = (64*64*4) >> PAGE_SHIFT;
+
+ ret = ttm_bo_reserve(bo, true, false, false, 0);
+ if (unlikely(ret != 0)) {
+ DRM_ERROR("reserve failed\n");
+ return;
+ }
+
+ ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
+ if (unlikely(ret != 0))
+ goto err_unreserve;
+
+ virtual = ttm_kmap_obj_virtual(&map, &dummy);
+
+ memcpy(srf->snooper.image, virtual, 64*64*4);
+ srf->snooper.age++;
+
+ /* we can't call this function from this function since execbuf has
+ * reserved fifo space.
+ *
+ * if (srf->snooper.crtc)
+ * vmw_ldu_crtc_cursor_update_image(dev_priv,
+ * srf->snooper.image, 64, 64,
+ * du->hotspot_x, du->hotspot_y);
+ */
+
+ ttm_bo_kunmap(&map);
+err_unreserve:
+ ttm_bo_unreserve(bo);
+}
+
+void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
+{
+ struct drm_device *dev = dev_priv->dev;
+ struct vmw_display_unit *du;
+ struct drm_crtc *crtc;
+
+ mutex_lock(&dev->mode_config.mutex);
+
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ du = vmw_crtc_to_du(crtc);
+ if (!du->cursor_surface ||
+ du->cursor_age == du->cursor_surface->snooper.age)
+ continue;
+
+ du->cursor_age = du->cursor_surface->snooper.age;
+ vmw_cursor_update_image(dev_priv,
+ du->cursor_surface->snooper.image,
+ 64, 64, du->hotspot_x, du->hotspot_y);
+ }
+
+ mutex_unlock(&dev->mode_config.mutex);
+}
+
+/*
+ * Generic framebuffer code
+ */
+
+int vmw_framebuffer_create_handle(struct drm_framebuffer *fb,
+ struct drm_file *file_priv,
+ unsigned int *handle)
+{
+ if (handle)
+ handle = 0;
+
+ return 0;
+}
+
+/*
+ * Surface framebuffer code
+ */
+
+#define vmw_framebuffer_to_vfbs(x) \
+ container_of(x, struct vmw_framebuffer_surface, base.base)
+
+struct vmw_framebuffer_surface {
+ struct vmw_framebuffer base;
+ struct vmw_surface *surface;
+ struct delayed_work d_work;
+ struct mutex work_lock;
+ bool present_fs;
+};
+
+void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
+{
+ struct vmw_framebuffer_surface *vfb =
+ vmw_framebuffer_to_vfbs(framebuffer);
+
+ cancel_delayed_work_sync(&vfb->d_work);
+ drm_framebuffer_cleanup(framebuffer);
+ vmw_surface_unreference(&vfb->surface);
+
+ kfree(framebuffer);
+}
+
+static void vmw_framebuffer_present_fs_callback(struct work_struct *work)
+{
+ struct delayed_work *d_work =
+ container_of(work, struct delayed_work, work);
+ struct vmw_framebuffer_surface *vfbs =
+ container_of(d_work, struct vmw_framebuffer_surface, d_work);
+ struct vmw_surface *surf = vfbs->surface;
+ struct drm_framebuffer *framebuffer = &vfbs->base.base;
+ struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
+
+ struct {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdPresent body;
+ SVGA3dCopyRect cr;
+ } *cmd;
+
+ mutex_lock(&vfbs->work_lock);
+ if (!vfbs->present_fs)
+ goto out_unlock;
+
+ cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
+ if (unlikely(cmd == NULL))
+ goto out_resched;
+
+ cmd->header.id = cpu_to_le32(SVGA_3D_CMD_PRESENT);
+ cmd->header.size = cpu_to_le32(sizeof(cmd->body) + sizeof(cmd->cr));
+ cmd->body.sid = cpu_to_le32(surf->res.id);
+ cmd->cr.x = cpu_to_le32(0);
+ cmd->cr.y = cpu_to_le32(0);
+ cmd->cr.srcx = cmd->cr.x;
+ cmd->cr.srcy = cmd->cr.y;
+ cmd->cr.w = cpu_to_le32(framebuffer->width);
+ cmd->cr.h = cpu_to_le32(framebuffer->height);
+ vfbs->present_fs = false;
+ vmw_fifo_commit(dev_priv, sizeof(*cmd));
+out_resched:
+ /**
+ * Will not re-add if already pending.
+ */
+ schedule_delayed_work(&vfbs->d_work, VMWGFX_PRESENT_RATE);
+out_unlock:
+ mutex_unlock(&vfbs->work_lock);
+}
+
+
+int vmw_framebuffer_surface_dirty(struct drm_framebuffer *framebuffer,
+ unsigned flags, unsigned color,
+ struct drm_clip_rect *clips,
+ unsigned num_clips)
+{
+ struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
+ struct vmw_framebuffer_surface *vfbs =
+ vmw_framebuffer_to_vfbs(framebuffer);
+ struct vmw_surface *surf = vfbs->surface;
+ struct drm_clip_rect norect;
+ SVGA3dCopyRect *cr;
+ int i, inc = 1;
+
+ struct {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdPresent body;
+ SVGA3dCopyRect cr;
+ } *cmd;
+
+ if (!num_clips ||
+ !(dev_priv->fifo.capabilities &
+ SVGA_FIFO_CAP_SCREEN_OBJECT)) {
+ int ret;
+
+ mutex_lock(&vfbs->work_lock);
+ vfbs->present_fs = true;
+ ret = schedule_delayed_work(&vfbs->d_work, VMWGFX_PRESENT_RATE);
+ mutex_unlock(&vfbs->work_lock);
+ if (ret) {
+ /**
+ * No work pending, Force immediate present.
+ */
+ vmw_framebuffer_present_fs_callback(&vfbs->d_work.work);
+ }
+ return 0;
+ }
+
+ if (!num_clips) {
+ num_clips = 1;
+ clips = &norect;
+ norect.x1 = norect.y1 = 0;
+ norect.x2 = framebuffer->width;
+ norect.y2 = framebuffer->height;
+ } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
+ num_clips /= 2;
+ inc = 2; /* skip source rects */
+ }
+
+ cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd) + (num_clips - 1) * sizeof(cmd->cr));
+ if (unlikely(cmd == NULL)) {
+ DRM_ERROR("Fifo reserve failed.\n");
+ return -ENOMEM;
+ }
+
+ memset(cmd, 0, sizeof(*cmd));
+
+ cmd->header.id = cpu_to_le32(SVGA_3D_CMD_PRESENT);
+ cmd->header.size = cpu_to_le32(sizeof(cmd->body) + num_clips * sizeof(cmd->cr));
+ cmd->body.sid = cpu_to_le32(surf->res.id);
+
+ for (i = 0, cr = &cmd->cr; i < num_clips; i++, cr++, clips += inc) {
+ cr->x = cpu_to_le16(clips->x1);
+ cr->y = cpu_to_le16(clips->y1);
+ cr->srcx = cr->x;
+ cr->srcy = cr->y;
+ cr->w = cpu_to_le16(clips->x2 - clips->x1);
+ cr->h = cpu_to_le16(clips->y2 - clips->y1);
+ }
+
+ vmw_fifo_commit(dev_priv, sizeof(*cmd) + (num_clips - 1) * sizeof(cmd->cr));
+
+ return 0;
+}
+
+static struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
+ .destroy = vmw_framebuffer_surface_destroy,
+ .dirty = vmw_framebuffer_surface_dirty,
+ .create_handle = vmw_framebuffer_create_handle,
+};
+
+int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
+ struct vmw_surface *surface,
+ struct vmw_framebuffer **out,
+ unsigned width, unsigned height)
+
+{
+ struct drm_device *dev = dev_priv->dev;
+ struct vmw_framebuffer_surface *vfbs;
+ int ret;
+
+ vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
+ if (!vfbs) {
+ ret = -ENOMEM;
+ goto out_err1;
+ }
+
+ ret = drm_framebuffer_init(dev, &vfbs->base.base,
+ &vmw_framebuffer_surface_funcs);
+ if (ret)
+ goto out_err2;
+
+ if (!vmw_surface_reference(surface)) {
+ DRM_ERROR("failed to reference surface %p\n", surface);
+ goto out_err3;
+ }
+
+ /* XXX get the first 3 from the surface info */
+ vfbs->base.base.bits_per_pixel = 32;
+ vfbs->base.base.pitch = width * 32 / 4;
+ vfbs->base.base.depth = 24;
+ vfbs->base.base.width = width;
+ vfbs->base.base.height = height;
+ vfbs->base.pin = NULL;
+ vfbs->base.unpin = NULL;
+ vfbs->surface = surface;
+ mutex_init(&vfbs->work_lock);
+ INIT_DELAYED_WORK(&vfbs->d_work, &vmw_framebuffer_present_fs_callback);
+ *out = &vfbs->base;
+
+ return 0;
+
+out_err3:
+ drm_framebuffer_cleanup(&vfbs->base.base);
+out_err2:
+ kfree(vfbs);
+out_err1:
+ return ret;
+}
+
+/*
+ * Dmabuf framebuffer code
+ */
+
+#define vmw_framebuffer_to_vfbd(x) \
+ container_of(x, struct vmw_framebuffer_dmabuf, base.base)
+
+struct vmw_framebuffer_dmabuf {
+ struct vmw_framebuffer base;
+ struct vmw_dma_buffer *buffer;
+};
+
+void vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer *framebuffer)
+{
+ struct vmw_framebuffer_dmabuf *vfbd =
+ vmw_framebuffer_to_vfbd(framebuffer);
+
+ drm_framebuffer_cleanup(framebuffer);
+ vmw_dmabuf_unreference(&vfbd->buffer);
+
+ kfree(vfbd);
+}
+
+int vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer *framebuffer,
+ unsigned flags, unsigned color,
+ struct drm_clip_rect *clips,
+ unsigned num_clips)
+{
+ struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
+ struct drm_clip_rect norect;
+ struct {
+ uint32_t header;
+ SVGAFifoCmdUpdate body;
+ } *cmd;
+ int i, increment = 1;
+
+ if (!num_clips) {
+ num_clips = 1;
+ clips = &norect;
+ norect.x1 = norect.y1 = 0;
+ norect.x2 = framebuffer->width;
+ norect.y2 = framebuffer->height;
+ } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
+ num_clips /= 2;
+ increment = 2;
+ }
+
+ cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd) * num_clips);
+ if (unlikely(cmd == NULL)) {
+ DRM_ERROR("Fifo reserve failed.\n");
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < num_clips; i++, clips += increment) {
+ cmd[i].header = cpu_to_le32(SVGA_CMD_UPDATE);
+ cmd[i].body.x = cpu_to_le32(clips->x1);
+ cmd[i].body.y = cpu_to_le32(clips->y1);
+ cmd[i].body.width = cpu_to_le32(clips->x2 - clips->x1);
+ cmd[i].body.height = cpu_to_le32(clips->y2 - clips->y1);
+ }
+
+ vmw_fifo_commit(dev_priv, sizeof(*cmd) * num_clips);
+
+ return 0;
+}
+
+static struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = {
+ .destroy = vmw_framebuffer_dmabuf_destroy,
+ .dirty = vmw_framebuffer_dmabuf_dirty,
+ .create_handle = vmw_framebuffer_create_handle,
+};
+
+static int vmw_framebuffer_dmabuf_pin(struct vmw_framebuffer *vfb)
+{
+ struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
+ struct vmw_framebuffer_dmabuf *vfbd =
+ vmw_framebuffer_to_vfbd(&vfb->base);
+ int ret;
+
+ vmw_overlay_pause_all(dev_priv);
+
+ ret = vmw_dmabuf_to_start_of_vram(dev_priv, vfbd->buffer);
+
+ if (dev_priv->capabilities & SVGA_CAP_MULTIMON) {
+ vmw_write(dev_priv, SVGA_REG_NUM_GUEST_DISPLAYS, 1);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, 0);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_IS_PRIMARY, true);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_X, 0);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_Y, 0);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_WIDTH, 0);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_HEIGHT, 0);
+ vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
+
+ vmw_write(dev_priv, SVGA_REG_ENABLE, 1);
+ vmw_write(dev_priv, SVGA_REG_WIDTH, vfb->base.width);
+ vmw_write(dev_priv, SVGA_REG_HEIGHT, vfb->base.height);
+ vmw_write(dev_priv, SVGA_REG_BITS_PER_PIXEL, vfb->base.bits_per_pixel);
+ vmw_write(dev_priv, SVGA_REG_DEPTH, vfb->base.depth);
+ vmw_write(dev_priv, SVGA_REG_RED_MASK, 0x00ff0000);
+ vmw_write(dev_priv, SVGA_REG_GREEN_MASK, 0x0000ff00);
+ vmw_write(dev_priv, SVGA_REG_BLUE_MASK, 0x000000ff);
+ } else
+ WARN_ON(true);
+
+ vmw_overlay_resume_all(dev_priv);
+
+ return 0;
+}
+
+static int vmw_framebuffer_dmabuf_unpin(struct vmw_framebuffer *vfb)
+{
+ struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
+ struct vmw_framebuffer_dmabuf *vfbd =
+ vmw_framebuffer_to_vfbd(&vfb->base);
+
+ if (!vfbd->buffer) {
+ WARN_ON(!vfbd->buffer);
+ return 0;
+ }
+
+ return vmw_dmabuf_from_vram(dev_priv, vfbd->buffer);
+}
+
+int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
+ struct vmw_dma_buffer *dmabuf,
+ struct vmw_framebuffer **out,
+ unsigned width, unsigned height)
+
+{
+ struct drm_device *dev = dev_priv->dev;
+ struct vmw_framebuffer_dmabuf *vfbd;
+ int ret;
+
+ vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
+ if (!vfbd) {
+ ret = -ENOMEM;
+ goto out_err1;
+ }
+
+ ret = drm_framebuffer_init(dev, &vfbd->base.base,
+ &vmw_framebuffer_dmabuf_funcs);
+ if (ret)
+ goto out_err2;
+
+ if (!vmw_dmabuf_reference(dmabuf)) {
+ DRM_ERROR("failed to reference dmabuf %p\n", dmabuf);
+ goto out_err3;
+ }
+
+ /* XXX get the first 3 from the surface info */
+ vfbd->base.base.bits_per_pixel = 32;
+ vfbd->base.base.pitch = width * 32 / 4;
+ vfbd->base.base.depth = 24;
+ vfbd->base.base.width = width;
+ vfbd->base.base.height = height;
+ vfbd->base.pin = vmw_framebuffer_dmabuf_pin;
+ vfbd->base.unpin = vmw_framebuffer_dmabuf_unpin;
+ vfbd->buffer = dmabuf;
+ *out = &vfbd->base;
+
+ return 0;
+
+out_err3:
+ drm_framebuffer_cleanup(&vfbd->base.base);
+out_err2:
+ kfree(vfbd);
+out_err1:
+ return ret;
+}
+
+/*
+ * Generic Kernel modesetting functions
+ */
+
+static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
+ struct drm_file *file_priv,
+ struct drm_mode_fb_cmd *mode_cmd)
+{
+ struct vmw_private *dev_priv = vmw_priv(dev);
+ struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
+ struct vmw_framebuffer *vfb = NULL;
+ struct vmw_surface *surface = NULL;
+ struct vmw_dma_buffer *bo = NULL;
+ int ret;
+
+ ret = vmw_user_surface_lookup_handle(dev_priv, tfile,
+ mode_cmd->handle, &surface);
+ if (ret)
+ goto try_dmabuf;
+
+ if (!surface->scanout)
+ goto err_not_scanout;
+
+ ret = vmw_kms_new_framebuffer_surface(dev_priv, surface, &vfb,
+ mode_cmd->width, mode_cmd->height);
+
+ /* vmw_user_surface_lookup takes one ref so does new_fb */
+ vmw_surface_unreference(&surface);
+
+ if (ret) {
+ DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
+ return NULL;
+ }
+ return &vfb->base;
+
+try_dmabuf:
+ DRM_INFO("%s: trying buffer\n", __func__);
+
+ ret = vmw_user_dmabuf_lookup(tfile, mode_cmd->handle, &bo);
+ if (ret) {
+ DRM_ERROR("failed to find buffer: %i\n", ret);
+ return NULL;
+ }
+
+ ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb,
+ mode_cmd->width, mode_cmd->height);
+
+ /* vmw_user_dmabuf_lookup takes one ref so does new_fb */
+ vmw_dmabuf_unreference(&bo);
+
+ if (ret) {
+ DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
+ return NULL;
+ }
+
+ return &vfb->base;
+
+err_not_scanout:
+ DRM_ERROR("surface not marked as scanout\n");
+ /* vmw_user_surface_lookup takes one ref */
+ vmw_surface_unreference(&surface);
+
+ return NULL;
+}
+
+static int vmw_kms_fb_changed(struct drm_device *dev)
+{
+ return 0;
+}
+
+static struct drm_mode_config_funcs vmw_kms_funcs = {
+ .fb_create = vmw_kms_fb_create,
+ .fb_changed = vmw_kms_fb_changed,
+};
+
+int vmw_kms_init(struct vmw_private *dev_priv)
+{
+ struct drm_device *dev = dev_priv->dev;
+ int ret;
+
+ drm_mode_config_init(dev);
+ dev->mode_config.funcs = &vmw_kms_funcs;
+ dev->mode_config.min_width = 640;
+ dev->mode_config.min_height = 480;
+ dev->mode_config.max_width = 2048;
+ dev->mode_config.max_height = 2048;
+
+ ret = vmw_kms_init_legacy_display_system(dev_priv);
+
+ return 0;
+}
+
+int vmw_kms_close(struct vmw_private *dev_priv)
+{
+ /*
+ * Docs says we should take the lock before calling this function
+ * but since it destroys encoders and our destructor calls
+ * drm_encoder_cleanup which takes the lock we deadlock.
+ */
+ drm_mode_config_cleanup(dev_priv->dev);
+ vmw_kms_close_legacy_display_system(dev_priv);
+ return 0;
+}
+
+int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_vmw_cursor_bypass_arg *arg = data;
+ struct vmw_display_unit *du;
+ struct drm_mode_object *obj;
+ struct drm_crtc *crtc;
+ int ret = 0;
+
+
+ mutex_lock(&dev->mode_config.mutex);
+ if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
+
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ du = vmw_crtc_to_du(crtc);
+ du->hotspot_x = arg->xhot;
+ du->hotspot_y = arg->yhot;
+ }
+
+ mutex_unlock(&dev->mode_config.mutex);
+ return 0;
+ }
+
+ obj = drm_mode_object_find(dev, arg->crtc_id, DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ crtc = obj_to_crtc(obj);
+ du = vmw_crtc_to_du(crtc);
+
+ du->hotspot_x = arg->xhot;
+ du->hotspot_y = arg->yhot;
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+
+ return ret;
+}
+
+int vmw_kms_save_vga(struct vmw_private *vmw_priv)
+{
+ /*
+ * setup a single multimon monitor with the size
+ * of 0x0, this stops the UI from resizing when we
+ * change the framebuffer size
+ */
+ if (vmw_priv->capabilities & SVGA_CAP_MULTIMON) {
+ vmw_write(vmw_priv, SVGA_REG_NUM_GUEST_DISPLAYS, 1);
+ vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, 0);
+ vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, true);
+ vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, 0);
+ vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, 0);
+ vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, 0);
+ vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, 0);
+ vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
+ }
+
+ vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH);
+ vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT);
+ vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
+ vmw_priv->vga_depth = vmw_read(vmw_priv, SVGA_REG_DEPTH);
+ vmw_priv->vga_pseudo = vmw_read(vmw_priv, SVGA_REG_PSEUDOCOLOR);
+ vmw_priv->vga_red_mask = vmw_read(vmw_priv, SVGA_REG_RED_MASK);
+ vmw_priv->vga_green_mask = vmw_read(vmw_priv, SVGA_REG_GREEN_MASK);
+ vmw_priv->vga_blue_mask = vmw_read(vmw_priv, SVGA_REG_BLUE_MASK);
+
+ return 0;
+}
+
+int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
+{
+ vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width);
+ vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height);
+ vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp);
+ vmw_write(vmw_priv, SVGA_REG_DEPTH, vmw_priv->vga_depth);
+ vmw_write(vmw_priv, SVGA_REG_PSEUDOCOLOR, vmw_priv->vga_pseudo);
+ vmw_write(vmw_priv, SVGA_REG_RED_MASK, vmw_priv->vga_red_mask);
+ vmw_write(vmw_priv, SVGA_REG_GREEN_MASK, vmw_priv->vga_green_mask);
+ vmw_write(vmw_priv, SVGA_REG_BLUE_MASK, vmw_priv->vga_blue_mask);
+
+ /* TODO check for multimon */
+ vmw_write(vmw_priv, SVGA_REG_NUM_GUEST_DISPLAYS, 0);
+
+ return 0;
+}