--- /dev/null
+/**************************************************************************
+ *
+ * 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_drv.h"
+#include <drm/vmwgfx_drm.h>
+#include "vmwgfx_kms.h"
+
+struct svga_3d_compat_cap {
+ SVGA3dCapsRecordHeader header;
+ SVGA3dCapPair pairs[SVGA3D_DEVCAP_MAX];
+};
+
+int vmw_getparam_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct vmw_private *dev_priv = vmw_priv(dev);
+ struct drm_vmw_getparam_arg *param =
+ (struct drm_vmw_getparam_arg *)data;
+ struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
+
+ switch (param->param) {
+ case DRM_VMW_PARAM_NUM_STREAMS:
+ param->value = vmw_overlay_num_overlays(dev_priv);
+ break;
+ case DRM_VMW_PARAM_NUM_FREE_STREAMS:
+ param->value = vmw_overlay_num_free_overlays(dev_priv);
+ break;
+ case DRM_VMW_PARAM_3D:
+ param->value = vmw_fifo_have_3d(dev_priv) ? 1 : 0;
+ break;
+ case DRM_VMW_PARAM_HW_CAPS:
+ param->value = dev_priv->capabilities;
+ break;
+ case DRM_VMW_PARAM_FIFO_CAPS:
+ param->value = dev_priv->fifo.capabilities;
+ break;
+ case DRM_VMW_PARAM_MAX_FB_SIZE:
+ param->value = dev_priv->prim_bb_mem;
+ break;
+ case DRM_VMW_PARAM_FIFO_HW_VERSION:
+ {
+ __le32 __iomem *fifo_mem = dev_priv->mmio_virt;
+ const struct vmw_fifo_state *fifo = &dev_priv->fifo;
+
+ if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS)) {
+ param->value = SVGA3D_HWVERSION_WS8_B1;
+ break;
+ }
+
+ param->value =
+ ioread32(fifo_mem +
+ ((fifo->capabilities &
+ SVGA_FIFO_CAP_3D_HWVERSION_REVISED) ?
+ SVGA_FIFO_3D_HWVERSION_REVISED :
+ SVGA_FIFO_3D_HWVERSION));
+ break;
+ }
+ case DRM_VMW_PARAM_MAX_SURF_MEMORY:
+ if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS) &&
+ !vmw_fp->gb_aware)
+ param->value = dev_priv->max_mob_pages * PAGE_SIZE / 2;
+ else
+ param->value = dev_priv->memory_size;
+ break;
+ case DRM_VMW_PARAM_3D_CAPS_SIZE:
+ if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS) &&
+ vmw_fp->gb_aware)
+ param->value = SVGA3D_DEVCAP_MAX * sizeof(uint32_t);
+ else if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS)
+ param->value = sizeof(struct svga_3d_compat_cap) +
+ sizeof(uint32_t);
+ else
+ param->value = (SVGA_FIFO_3D_CAPS_LAST -
+ SVGA_FIFO_3D_CAPS + 1) *
+ sizeof(uint32_t);
+ break;
+ case DRM_VMW_PARAM_MAX_MOB_MEMORY:
+ vmw_fp->gb_aware = true;
+ param->value = dev_priv->max_mob_pages * PAGE_SIZE;
+ break;
+ case DRM_VMW_PARAM_MAX_MOB_SIZE:
+ param->value = dev_priv->max_mob_size;
+ break;
+ default:
+ DRM_ERROR("Illegal vmwgfx get param request: %d\n",
+ param->param);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int vmw_fill_compat_cap(struct vmw_private *dev_priv, void *bounce,
+ size_t size)
+{
+ struct svga_3d_compat_cap *compat_cap =
+ (struct svga_3d_compat_cap *) bounce;
+ unsigned int i;
+ size_t pair_offset = offsetof(struct svga_3d_compat_cap, pairs);
+ unsigned int max_size;
+
+ if (size < pair_offset)
+ return -EINVAL;
+
+ max_size = (size - pair_offset) / sizeof(SVGA3dCapPair);
+
+ if (max_size > SVGA3D_DEVCAP_MAX)
+ max_size = SVGA3D_DEVCAP_MAX;
+
+ compat_cap->header.length =
+ (pair_offset + max_size * sizeof(SVGA3dCapPair)) / sizeof(u32);
+ compat_cap->header.type = SVGA3DCAPS_RECORD_DEVCAPS;
+
+ spin_lock(&dev_priv->cap_lock);
+ for (i = 0; i < max_size; ++i) {
+ vmw_write(dev_priv, SVGA_REG_DEV_CAP, i);
+ compat_cap->pairs[i][0] = i;
+ compat_cap->pairs[i][1] = vmw_read(dev_priv, SVGA_REG_DEV_CAP);
+ }
+ spin_unlock(&dev_priv->cap_lock);
+
+ return 0;
+}
+
+
+int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_vmw_get_3d_cap_arg *arg =
+ (struct drm_vmw_get_3d_cap_arg *) data;
+ struct vmw_private *dev_priv = vmw_priv(dev);
+ uint32_t size;
+ __le32 __iomem *fifo_mem;
+ void __user *buffer = (void __user *)((unsigned long)(arg->buffer));
+ void *bounce;
+ int ret;
+ bool gb_objects = !!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS);
+ struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
+
+ if (unlikely(arg->pad64 != 0)) {
+ DRM_ERROR("Illegal GET_3D_CAP argument.\n");
+ return -EINVAL;
+ }
+
+ if (gb_objects && vmw_fp->gb_aware)
+ size = SVGA3D_DEVCAP_MAX * sizeof(uint32_t);
+ else if (gb_objects)
+ size = sizeof(struct svga_3d_compat_cap) + sizeof(uint32_t);
+ else
+ size = (SVGA_FIFO_3D_CAPS_LAST - SVGA_FIFO_3D_CAPS + 1) *
+ sizeof(uint32_t);
+
+ if (arg->max_size < size)
+ size = arg->max_size;
+
+ bounce = vzalloc(size);
+ if (unlikely(bounce == NULL)) {
+ DRM_ERROR("Failed to allocate bounce buffer for 3D caps.\n");
+ return -ENOMEM;
+ }
+
+ if (gb_objects && vmw_fp->gb_aware) {
+ int i, num;
+ uint32_t *bounce32 = (uint32_t *) bounce;
+
+ num = size / sizeof(uint32_t);
+ if (num > SVGA3D_DEVCAP_MAX)
+ num = SVGA3D_DEVCAP_MAX;
+
+ spin_lock(&dev_priv->cap_lock);
+ for (i = 0; i < num; ++i) {
+ vmw_write(dev_priv, SVGA_REG_DEV_CAP, i);
+ *bounce32++ = vmw_read(dev_priv, SVGA_REG_DEV_CAP);
+ }
+ spin_unlock(&dev_priv->cap_lock);
+ } else if (gb_objects) {
+ ret = vmw_fill_compat_cap(dev_priv, bounce, size);
+ if (unlikely(ret != 0))
+ goto out_err;
+ } else {
+ fifo_mem = dev_priv->mmio_virt;
+ memcpy_fromio(bounce, &fifo_mem[SVGA_FIFO_3D_CAPS], size);
+ }
+
+ ret = copy_to_user(buffer, bounce, size);
+ if (ret)
+ ret = -EFAULT;
+out_err:
+ vfree(bounce);
+
+ if (unlikely(ret != 0))
+ DRM_ERROR("Failed to report 3D caps info.\n");
+
+ return ret;
+}
+
+int vmw_present_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
+ struct vmw_private *dev_priv = vmw_priv(dev);
+ struct drm_vmw_present_arg *arg =
+ (struct drm_vmw_present_arg *)data;
+ struct vmw_surface *surface;
+ struct drm_vmw_rect __user *clips_ptr;
+ struct drm_vmw_rect *clips = NULL;
+ struct drm_framebuffer *fb;
+ struct vmw_framebuffer *vfb;
+ struct vmw_resource *res;
+ uint32_t num_clips;
+ int ret;
+
+ num_clips = arg->num_clips;
+ clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
+
+ if (unlikely(num_clips == 0))
+ return 0;
+
+ if (clips_ptr == NULL) {
+ DRM_ERROR("Variable clips_ptr must be specified.\n");
+ ret = -EINVAL;
+ goto out_clips;
+ }
+
+ clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
+ if (clips == NULL) {
+ DRM_ERROR("Failed to allocate clip rect list.\n");
+ ret = -ENOMEM;
+ goto out_clips;
+ }
+
+ ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
+ if (ret) {
+ DRM_ERROR("Failed to copy clip rects from userspace.\n");
+ ret = -EFAULT;
+ goto out_no_copy;
+ }
+
+ drm_modeset_lock_all(dev);
+
+ fb = drm_framebuffer_lookup(dev, arg->fb_id);
+ if (!fb) {
+ DRM_ERROR("Invalid framebuffer id.\n");
+ ret = -ENOENT;
+ goto out_no_fb;
+ }
+ vfb = vmw_framebuffer_to_vfb(fb);
+
+ ret = ttm_read_lock(&dev_priv->reservation_sem, true);
+ if (unlikely(ret != 0))
+ goto out_no_ttm_lock;
+
+ ret = vmw_user_resource_lookup_handle(dev_priv, tfile, arg->sid,
+ user_surface_converter,
+ &res);
+ if (ret)
+ goto out_no_surface;
+
+ surface = vmw_res_to_srf(res);
+ ret = vmw_kms_present(dev_priv, file_priv,
+ vfb, surface, arg->sid,
+ arg->dest_x, arg->dest_y,
+ clips, num_clips);
+
+ /* vmw_user_surface_lookup takes one ref so does new_fb */
+ vmw_surface_unreference(&surface);
+
+out_no_surface:
+ ttm_read_unlock(&dev_priv->reservation_sem);
+out_no_ttm_lock:
+ drm_framebuffer_unreference(fb);
+out_no_fb:
+ drm_modeset_unlock_all(dev);
+out_no_copy:
+ kfree(clips);
+out_clips:
+ return ret;
+}
+
+int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct vmw_private *dev_priv = vmw_priv(dev);
+ struct drm_vmw_present_readback_arg *arg =
+ (struct drm_vmw_present_readback_arg *)data;
+ struct drm_vmw_fence_rep __user *user_fence_rep =
+ (struct drm_vmw_fence_rep __user *)
+ (unsigned long)arg->fence_rep;
+ struct drm_vmw_rect __user *clips_ptr;
+ struct drm_vmw_rect *clips = NULL;
+ struct drm_framebuffer *fb;
+ struct vmw_framebuffer *vfb;
+ uint32_t num_clips;
+ int ret;
+
+ num_clips = arg->num_clips;
+ clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
+
+ if (unlikely(num_clips == 0))
+ return 0;
+
+ if (clips_ptr == NULL) {
+ DRM_ERROR("Argument clips_ptr must be specified.\n");
+ ret = -EINVAL;
+ goto out_clips;
+ }
+
+ clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
+ if (clips == NULL) {
+ DRM_ERROR("Failed to allocate clip rect list.\n");
+ ret = -ENOMEM;
+ goto out_clips;
+ }
+
+ ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
+ if (ret) {
+ DRM_ERROR("Failed to copy clip rects from userspace.\n");
+ ret = -EFAULT;
+ goto out_no_copy;
+ }
+
+ drm_modeset_lock_all(dev);
+
+ fb = drm_framebuffer_lookup(dev, arg->fb_id);
+ if (!fb) {
+ DRM_ERROR("Invalid framebuffer id.\n");
+ ret = -ENOENT;
+ goto out_no_fb;
+ }
+
+ vfb = vmw_framebuffer_to_vfb(fb);
+ if (!vfb->dmabuf) {
+ DRM_ERROR("Framebuffer not dmabuf backed.\n");
+ ret = -EINVAL;
+ goto out_no_ttm_lock;
+ }
+
+ ret = ttm_read_lock(&dev_priv->reservation_sem, true);
+ if (unlikely(ret != 0))
+ goto out_no_ttm_lock;
+
+ ret = vmw_kms_readback(dev_priv, file_priv,
+ vfb, user_fence_rep,
+ clips, num_clips);
+
+ ttm_read_unlock(&dev_priv->reservation_sem);
+out_no_ttm_lock:
+ drm_framebuffer_unreference(fb);
+out_no_fb:
+ drm_modeset_unlock_all(dev);
+out_no_copy:
+ kfree(clips);
+out_clips:
+ return ret;
+}
+
+
+/**
+ * vmw_fops_poll - wrapper around the drm_poll function
+ *
+ * @filp: See the linux fops poll documentation.
+ * @wait: See the linux fops poll documentation.
+ *
+ * Wrapper around the drm_poll function that makes sure the device is
+ * processing the fifo if drm_poll decides to wait.
+ */
+unsigned int vmw_fops_poll(struct file *filp, struct poll_table_struct *wait)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct vmw_private *dev_priv =
+ vmw_priv(file_priv->minor->dev);
+
+ vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC);
+ return drm_poll(filp, wait);
+}
+
+
+/**
+ * vmw_fops_read - wrapper around the drm_read function
+ *
+ * @filp: See the linux fops read documentation.
+ * @buffer: See the linux fops read documentation.
+ * @count: See the linux fops read documentation.
+ * offset: See the linux fops read documentation.
+ *
+ * Wrapper around the drm_read function that makes sure the device is
+ * processing the fifo if drm_read decides to wait.
+ */
+ssize_t vmw_fops_read(struct file *filp, char __user *buffer,
+ size_t count, loff_t *offset)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct vmw_private *dev_priv =
+ vmw_priv(file_priv->minor->dev);
+
+ vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC);
+ return drm_read(filp, buffer, count, offset);
+}
Code Review / kvmfornfv.git / blobdiff