318 lines
8.6 KiB
C
318 lines
8.6 KiB
C
// SPDX-License-Identifier: GPL-2.0 OR MIT
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/**************************************************************************
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*
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* Copyright 2009-2022 VMware, Inc., Palo Alto, CA., USA
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include "vmwgfx_drv.h"
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#include "vmwgfx_devcaps.h"
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#include "vmwgfx_kms.h"
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#include <drm/vmwgfx_drm.h>
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#include <linux/pci.h>
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int vmw_getparam_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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{
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struct vmw_private *dev_priv = vmw_priv(dev);
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struct drm_vmw_getparam_arg *param =
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(struct drm_vmw_getparam_arg *)data;
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struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
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switch (param->param) {
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case DRM_VMW_PARAM_NUM_STREAMS:
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param->value = vmw_overlay_num_overlays(dev_priv);
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break;
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case DRM_VMW_PARAM_NUM_FREE_STREAMS:
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param->value = vmw_overlay_num_free_overlays(dev_priv);
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break;
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case DRM_VMW_PARAM_3D:
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param->value = vmw_supports_3d(dev_priv) ? 1 : 0;
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break;
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case DRM_VMW_PARAM_HW_CAPS:
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param->value = dev_priv->capabilities;
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break;
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case DRM_VMW_PARAM_HW_CAPS2:
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param->value = dev_priv->capabilities2;
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break;
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case DRM_VMW_PARAM_FIFO_CAPS:
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param->value = vmw_fifo_caps(dev_priv);
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break;
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case DRM_VMW_PARAM_MAX_FB_SIZE:
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param->value = dev_priv->max_primary_mem;
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break;
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case DRM_VMW_PARAM_FIFO_HW_VERSION:
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{
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if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS))
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param->value = SVGA3D_HWVERSION_WS8_B1;
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else
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param->value = vmw_fifo_mem_read(
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dev_priv,
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((vmw_fifo_caps(dev_priv) &
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SVGA_FIFO_CAP_3D_HWVERSION_REVISED) ?
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SVGA_FIFO_3D_HWVERSION_REVISED :
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SVGA_FIFO_3D_HWVERSION));
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break;
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}
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case DRM_VMW_PARAM_MAX_SURF_MEMORY:
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if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS) &&
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!vmw_fp->gb_aware)
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param->value = dev_priv->max_mob_pages * PAGE_SIZE / 2;
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else
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param->value = dev_priv->memory_size;
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break;
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case DRM_VMW_PARAM_3D_CAPS_SIZE:
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param->value = vmw_devcaps_size(dev_priv, vmw_fp->gb_aware);
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break;
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case DRM_VMW_PARAM_MAX_MOB_MEMORY:
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vmw_fp->gb_aware = true;
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param->value = dev_priv->max_mob_pages * PAGE_SIZE;
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break;
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case DRM_VMW_PARAM_MAX_MOB_SIZE:
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param->value = dev_priv->max_mob_size;
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break;
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case DRM_VMW_PARAM_SCREEN_TARGET:
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param->value =
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(dev_priv->active_display_unit == vmw_du_screen_target);
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break;
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case DRM_VMW_PARAM_DX:
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param->value = has_sm4_context(dev_priv);
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break;
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case DRM_VMW_PARAM_SM4_1:
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param->value = has_sm4_1_context(dev_priv);
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break;
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case DRM_VMW_PARAM_SM5:
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param->value = has_sm5_context(dev_priv);
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break;
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case DRM_VMW_PARAM_GL43:
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param->value = has_gl43_context(dev_priv);
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break;
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case DRM_VMW_PARAM_DEVICE_ID:
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param->value = to_pci_dev(dev_priv->drm.dev)->device;
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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{
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struct drm_vmw_get_3d_cap_arg *arg =
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(struct drm_vmw_get_3d_cap_arg *) data;
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struct vmw_private *dev_priv = vmw_priv(dev);
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uint32_t size;
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void __user *buffer = (void __user *)((unsigned long)(arg->buffer));
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void *bounce = NULL;
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int ret;
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struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
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if (unlikely(arg->pad64 != 0 || arg->max_size == 0)) {
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VMW_DEBUG_USER("Illegal GET_3D_CAP argument.\n");
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return -EINVAL;
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}
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size = vmw_devcaps_size(dev_priv, vmw_fp->gb_aware);
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if (unlikely(size == 0)) {
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DRM_ERROR("Failed to figure out the devcaps size (no 3D).\n");
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return -ENOMEM;
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}
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if (arg->max_size < size)
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size = arg->max_size;
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bounce = vzalloc(size);
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if (unlikely(bounce == NULL)) {
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DRM_ERROR("Failed to allocate bounce buffer for 3D caps.\n");
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return -ENOMEM;
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}
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ret = vmw_devcaps_copy(dev_priv, vmw_fp->gb_aware, bounce, size);
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if (unlikely (ret != 0))
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goto out_err;
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ret = copy_to_user(buffer, bounce, size);
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if (ret)
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ret = -EFAULT;
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out_err:
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vfree(bounce);
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if (unlikely(ret != 0))
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DRM_ERROR("Failed to report 3D caps info.\n");
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return ret;
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}
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int vmw_present_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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{
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struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
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struct vmw_private *dev_priv = vmw_priv(dev);
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struct drm_vmw_present_arg *arg =
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(struct drm_vmw_present_arg *)data;
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struct vmw_surface *surface;
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struct drm_vmw_rect __user *clips_ptr;
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struct drm_vmw_rect *clips = NULL;
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struct drm_framebuffer *fb;
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struct vmw_framebuffer *vfb;
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struct vmw_resource *res;
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uint32_t num_clips;
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int ret;
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num_clips = arg->num_clips;
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clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
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if (unlikely(num_clips == 0))
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return 0;
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if (clips_ptr == NULL) {
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VMW_DEBUG_USER("Variable clips_ptr must be specified.\n");
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ret = -EINVAL;
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goto out_clips;
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}
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clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
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if (clips == NULL) {
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DRM_ERROR("Failed to allocate clip rect list.\n");
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ret = -ENOMEM;
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goto out_clips;
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}
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ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
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if (ret) {
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DRM_ERROR("Failed to copy clip rects from userspace.\n");
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ret = -EFAULT;
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goto out_no_copy;
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}
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drm_modeset_lock_all(dev);
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fb = drm_framebuffer_lookup(dev, file_priv, arg->fb_id);
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if (!fb) {
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VMW_DEBUG_USER("Invalid framebuffer id.\n");
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ret = -ENOENT;
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goto out_no_fb;
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}
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vfb = vmw_framebuffer_to_vfb(fb);
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ret = vmw_user_resource_lookup_handle(dev_priv, tfile, arg->sid,
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user_surface_converter,
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&res);
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if (ret)
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goto out_no_surface;
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surface = vmw_res_to_srf(res);
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ret = vmw_kms_present(dev_priv, file_priv,
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vfb, surface, arg->sid,
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arg->dest_x, arg->dest_y,
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clips, num_clips);
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/* vmw_user_surface_lookup takes one ref so does new_fb */
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vmw_surface_unreference(&surface);
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out_no_surface:
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drm_framebuffer_put(fb);
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out_no_fb:
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drm_modeset_unlock_all(dev);
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out_no_copy:
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kfree(clips);
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out_clips:
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return ret;
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}
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int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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{
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struct vmw_private *dev_priv = vmw_priv(dev);
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struct drm_vmw_present_readback_arg *arg =
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(struct drm_vmw_present_readback_arg *)data;
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struct drm_vmw_fence_rep __user *user_fence_rep =
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(struct drm_vmw_fence_rep __user *)
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(unsigned long)arg->fence_rep;
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struct drm_vmw_rect __user *clips_ptr;
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struct drm_vmw_rect *clips = NULL;
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struct drm_framebuffer *fb;
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struct vmw_framebuffer *vfb;
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uint32_t num_clips;
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int ret;
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num_clips = arg->num_clips;
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clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
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if (unlikely(num_clips == 0))
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return 0;
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if (clips_ptr == NULL) {
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VMW_DEBUG_USER("Argument clips_ptr must be specified.\n");
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ret = -EINVAL;
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goto out_clips;
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}
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clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
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if (clips == NULL) {
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DRM_ERROR("Failed to allocate clip rect list.\n");
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ret = -ENOMEM;
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goto out_clips;
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}
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ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
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if (ret) {
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DRM_ERROR("Failed to copy clip rects from userspace.\n");
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ret = -EFAULT;
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goto out_no_copy;
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}
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drm_modeset_lock_all(dev);
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fb = drm_framebuffer_lookup(dev, file_priv, arg->fb_id);
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if (!fb) {
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VMW_DEBUG_USER("Invalid framebuffer id.\n");
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ret = -ENOENT;
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goto out_no_fb;
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}
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vfb = vmw_framebuffer_to_vfb(fb);
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if (!vfb->bo) {
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VMW_DEBUG_USER("Framebuffer not buffer backed.\n");
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ret = -EINVAL;
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goto out_no_ttm_lock;
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}
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ret = vmw_kms_readback(dev_priv, file_priv,
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vfb, user_fence_rep,
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clips, num_clips);
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out_no_ttm_lock:
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drm_framebuffer_put(fb);
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out_no_fb:
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drm_modeset_unlock_all(dev);
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out_no_copy:
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kfree(clips);
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out_clips:
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return ret;
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}
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