]> bbs.cooldavid.org Git - net-next-2.6.git/blobdiff - drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
vmwgfx: return -EFAULT if copy_to_user fails
[net-next-2.6.git] / drivers / gpu / drm / vmwgfx / vmwgfx_kms.c
index bbc7c4c30bc7fc26d6c2244ba53ab70324af1593..437ac786277a22520ec9fca32f1488ab6bcdcab4 100644 (file)
@@ -30,6 +30,8 @@
 /* Might need a hrtimer here? */
 #define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
 
+static int vmw_surface_dmabuf_pin(struct vmw_framebuffer *vfb);
+static int vmw_surface_dmabuf_unpin(struct vmw_framebuffer *vfb);
 
 void vmw_display_unit_cleanup(struct vmw_display_unit *du)
 {
@@ -326,6 +328,7 @@ int vmw_framebuffer_create_handle(struct drm_framebuffer *fb,
 struct vmw_framebuffer_surface {
        struct vmw_framebuffer base;
        struct vmw_surface *surface;
+       struct vmw_dma_buffer *buffer;
        struct delayed_work d_work;
        struct mutex work_lock;
        bool present_fs;
@@ -500,8 +503,8 @@ int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
        vfbs->base.base.depth = 24;
        vfbs->base.base.width = width;
        vfbs->base.base.height = height;
-       vfbs->base.pin = NULL;
-       vfbs->base.unpin = NULL;
+       vfbs->base.pin = &vmw_surface_dmabuf_pin;
+       vfbs->base.unpin = &vmw_surface_dmabuf_unpin;
        vfbs->surface = surface;
        mutex_init(&vfbs->work_lock);
        INIT_DELAYED_WORK(&vfbs->d_work, &vmw_framebuffer_present_fs_callback);
@@ -589,6 +592,40 @@ static struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = {
        .create_handle = vmw_framebuffer_create_handle,
 };
 
+static int vmw_surface_dmabuf_pin(struct vmw_framebuffer *vfb)
+{
+       struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
+       struct vmw_framebuffer_surface *vfbs =
+               vmw_framebuffer_to_vfbs(&vfb->base);
+       unsigned long size = vfbs->base.base.pitch * vfbs->base.base.height;
+       int ret;
+
+       vfbs->buffer = kzalloc(sizeof(*vfbs->buffer), GFP_KERNEL);
+       if (unlikely(vfbs->buffer == NULL))
+               return -ENOMEM;
+
+       vmw_overlay_pause_all(dev_priv);
+       ret = vmw_dmabuf_init(dev_priv, vfbs->buffer, size,
+                              &vmw_vram_ne_placement,
+                              false, &vmw_dmabuf_bo_free);
+       vmw_overlay_resume_all(dev_priv);
+
+       return ret;
+}
+
+static int vmw_surface_dmabuf_unpin(struct vmw_framebuffer *vfb)
+{
+       struct ttm_buffer_object *bo;
+       struct vmw_framebuffer_surface *vfbs =
+               vmw_framebuffer_to_vfbs(&vfb->base);
+
+       bo = &vfbs->buffer->base;
+       ttm_bo_unref(&bo);
+       vfbs->buffer = NULL;
+
+       return 0;
+}
+
 static int vmw_framebuffer_dmabuf_pin(struct vmw_framebuffer *vfb)
 {
        struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
@@ -596,33 +633,15 @@ static int vmw_framebuffer_dmabuf_pin(struct vmw_framebuffer *vfb)
                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);
 
+       WARN_ON(ret != 0);
+
        return 0;
 }
 
@@ -668,7 +687,7 @@ int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
 
        /* 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.pitch = width * vfbd->base.base.bits_per_pixel / 8;
        vfbd->base.base.depth = 24;
        vfbd->base.base.width = width;
        vfbd->base.base.height = height;
@@ -765,8 +784,9 @@ int vmw_kms_init(struct vmw_private *dev_priv)
        dev->mode_config.funcs = &vmw_kms_funcs;
        dev->mode_config.min_width = 1;
        dev->mode_config.min_height = 1;
-       dev->mode_config.max_width = dev_priv->fb_max_width;
-       dev->mode_config.max_height = dev_priv->fb_max_height;
+       /* assumed largest fb size */
+       dev->mode_config.max_width = 8192;
+       dev->mode_config.max_height = 8192;
 
        ret = vmw_kms_init_legacy_display_system(dev_priv);
 
@@ -826,49 +846,141 @@ out:
        return ret;
 }
 
+void vmw_kms_write_svga(struct vmw_private *vmw_priv,
+                       unsigned width, unsigned height, unsigned pitch,
+                       unsigned bbp, unsigned depth)
+{
+       if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
+               vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
+       else if (vmw_fifo_have_pitchlock(vmw_priv))
+               iowrite32(pitch, vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
+       vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
+       vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
+       vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bbp);
+       vmw_write(vmw_priv, SVGA_REG_DEPTH, depth);
+       vmw_write(vmw_priv, SVGA_REG_RED_MASK, 0x00ff0000);
+       vmw_write(vmw_priv, SVGA_REG_GREEN_MASK, 0x0000ff00);
+       vmw_write(vmw_priv, SVGA_REG_BLUE_MASK, 0x000000ff);
+}
+
 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);
-       }
+       struct vmw_vga_topology_state *save;
+       uint32_t i;
 
        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_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
        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);
+       vmw_priv->vga_green_mask = vmw_read(vmw_priv, SVGA_REG_GREEN_MASK);
+       if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
+               vmw_priv->vga_pitchlock =
+                 vmw_read(vmw_priv, SVGA_REG_PITCHLOCK);
+       else if (vmw_fifo_have_pitchlock(vmw_priv))
+               vmw_priv->vga_pitchlock = ioread32(vmw_priv->mmio_virt +
+                                                      SVGA_FIFO_PITCHLOCK);
+
+       if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
+               return 0;
 
+       vmw_priv->num_displays = vmw_read(vmw_priv,
+                                         SVGA_REG_NUM_GUEST_DISPLAYS);
+
+       for (i = 0; i < vmw_priv->num_displays; ++i) {
+               save = &vmw_priv->vga_save[i];
+               vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
+               save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY);
+               save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X);
+               save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y);
+               save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH);
+               save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT);
+               vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
+       }
        return 0;
 }
 
 int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
 {
+       struct vmw_vga_topology_state *save;
+       uint32_t i;
+
        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_BITS_PER_PIXEL, vmw_priv->vga_bpp);
        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);
+       if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
+               vmw_write(vmw_priv, SVGA_REG_PITCHLOCK,
+                         vmw_priv->vga_pitchlock);
+       else if (vmw_fifo_have_pitchlock(vmw_priv))
+               iowrite32(vmw_priv->vga_pitchlock,
+                         vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
+
+       if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
+               return 0;
 
-       /* TODO check for multimon */
-       vmw_write(vmw_priv, SVGA_REG_NUM_GUEST_DISPLAYS, 0);
+       for (i = 0; i < vmw_priv->num_displays; ++i) {
+               save = &vmw_priv->vga_save[i];
+               vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
+               vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary);
+               vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x);
+               vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y);
+               vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width);
+               vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height);
+               vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
+       }
 
        return 0;
 }
+
+int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
+                               struct drm_file *file_priv)
+{
+       struct vmw_private *dev_priv = vmw_priv(dev);
+       struct drm_vmw_update_layout_arg *arg =
+               (struct drm_vmw_update_layout_arg *)data;
+       struct vmw_master *vmaster = vmw_master(file_priv->master);
+       void __user *user_rects;
+       struct drm_vmw_rect *rects;
+       unsigned rects_size;
+       int ret;
+
+       ret = ttm_read_lock(&vmaster->lock, true);
+       if (unlikely(ret != 0))
+               return ret;
+
+       if (!arg->num_outputs) {
+               struct drm_vmw_rect def_rect = {0, 0, 800, 600};
+               vmw_kms_ldu_update_layout(dev_priv, 1, &def_rect);
+               goto out_unlock;
+       }
+
+       rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
+       rects = kzalloc(rects_size, GFP_KERNEL);
+       if (unlikely(!rects)) {
+               ret = -ENOMEM;
+               goto out_unlock;
+       }
+
+       user_rects = (void __user *)(unsigned long)arg->rects;
+       ret = copy_from_user(rects, user_rects, rects_size);
+       if (unlikely(ret != 0)) {
+               DRM_ERROR("Failed to get rects.\n");
+               ret = -EFAULT;
+               goto out_free;
+       }
+
+       vmw_kms_ldu_update_layout(dev_priv, arg->num_outputs, rects);
+
+out_free:
+       kfree(rects);
+out_unlock:
+       ttm_read_unlock(&vmaster->lock);
+       return ret;
+}