// SPDX-License-Identifier: GPL-2.0 OR MIT
/**************************************************************************
*
* Copyright 2009-2022 VMware, Inc., Palo Alto, CA., USA
*
* 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 "vmwgfx_devcaps.h"
#include "vmwgfx_kms.h"
#include <drm/vmwgfx_drm.h>
#include <linux/pci.h>
#include <linux/vmalloc.h>
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_supports_3d(dev_priv) ? 1 : 0;
break;
case DRM_VMW_PARAM_HW_CAPS:
param->value = dev_priv->capabilities;
break;
case DRM_VMW_PARAM_HW_CAPS2:
param->value = dev_priv->capabilities2;
break;
case DRM_VMW_PARAM_FIFO_CAPS:
param->value = vmw_fifo_caps(dev_priv);
break;
case DRM_VMW_PARAM_MAX_FB_SIZE:
param->value = dev_priv->max_primary_mem;
break;
case DRM_VMW_PARAM_FIFO_HW_VERSION:
{
if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS))
param->value = SVGA3D_HWVERSION_WS8_B1;
else
param->value = vmw_fifo_mem_read(
dev_priv,
((vmw_fifo_caps(dev_priv) &
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:
param->value = vmw_devcaps_size(dev_priv, vmw_fp->gb_aware);
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;
case DRM_VMW_PARAM_SCREEN_TARGET:
param->value =
(dev_priv->active_display_unit == vmw_du_screen_target);
break;
case DRM_VMW_PARAM_DX:
param->value = has_sm4_context(dev_priv);
break;
case DRM_VMW_PARAM_SM4_1:
param->value = has_sm4_1_context(dev_priv);
break;
case DRM_VMW_PARAM_SM5:
param->value = has_sm5_context(dev_priv);
break;
case DRM_VMW_PARAM_GL43:
param->value = has_gl43_context(dev_priv);
break;
case DRM_VMW_PARAM_DEVICE_ID:
param->value = to_pci_dev(dev_priv->drm.dev)->device;
break;
default:
return -EINVAL;
}
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;
void __user *buffer = (void __user *)((unsigned long)(arg->buffer));
void *bounce = NULL;
int ret;
struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
if (unlikely(arg->pad64 != 0 || arg->max_size == 0)) {
VMW_DEBUG_USER("Illegal GET_3D_CAP argument.\n");
return -EINVAL;
}
size = vmw_devcaps_size(dev_priv, vmw_fp->gb_aware);
if (unlikely(size == 0)) {
DRM_ERROR("Failed to figure out the devcaps size (no 3D).\n");
return -ENOMEM;
}
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;
}
ret = vmw_devcaps_copy(dev_priv, vmw_fp->gb_aware, bounce, size);
if (unlikely (ret != 0))
goto out_err;
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 __user *)(unsigned long)arg->clips_ptr;
if (unlikely(num_clips == 0))
return 0;
if (clips_ptr == NULL) {
VMW_DEBUG_USER("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, file_priv, arg->fb_id);
if (!fb) {
VMW_DEBUG_USER("Invalid framebuffer id.\n");
ret = -ENOENT;
goto out_no_fb;
}
vfb = vmw_framebuffer_to_vfb(fb);
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:
drm_framebuffer_put(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 __user *)(unsigned long)arg->clips_ptr;
if (unlikely(num_clips == 0))
return 0;
if (clips_ptr == NULL) {
VMW_DEBUG_USER("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, file_priv, arg->fb_id);
if (!fb) {
VMW_DEBUG_USER("Invalid framebuffer id.\n");
ret = -ENOENT;
goto out_no_fb;
}
vfb = vmw_framebuffer_to_vfb(fb);
if (!vfb->bo) {
VMW_DEBUG_USER("Framebuffer not buffer backed.\n");
ret = -EINVAL;
goto out_no_ttm_lock;
}
ret = vmw_kms_readback(dev_priv, file_priv,
vfb, user_fence_rep,
clips, num_clips);
out_no_ttm_lock:
drm_framebuffer_put(fb);
out_no_fb:
drm_modeset_unlock_all(dev);
out_no_copy:
kfree(clips);
out_clips:
return ret;
}
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